WO2021225302A1 - 아크 경로 형성부 및 이를 포함하는 직류 릴레이 - Google Patents
아크 경로 형성부 및 이를 포함하는 직류 릴레이 Download PDFInfo
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- WO2021225302A1 WO2021225302A1 PCT/KR2021/004926 KR2021004926W WO2021225302A1 WO 2021225302 A1 WO2021225302 A1 WO 2021225302A1 KR 2021004926 W KR2021004926 W KR 2021004926W WO 2021225302 A1 WO2021225302 A1 WO 2021225302A1
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- Prior art keywords
- magnet
- magnet part
- space
- facing
- fixed contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/38—Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/60—Contact arrangements moving contact being rigidly combined with movable part of magnetic circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
- H01H50/045—Details particular to contactors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/546—Contact arrangements for contactors having bridging contacts
Definitions
- the present invention relates to an arc path forming unit and a DC relay including the same, and more particularly, to an arc path forming unit having a structure capable of preventing damage to the DC relay while forming an arc discharge path using electromagnetic force and including the same It is about a DC relay.
- a direct current relay is a device that transmits a mechanical drive or current signal using the principle of an electromagnet.
- a DC relay is also called a magnetic switch, and is generally classified as an electrical circuit switch.
- a DC relay includes a fixed contact and a movable contact.
- the fixed contact is electrically connected to an external power source and load.
- the fixed contact and the movable contact may be in contact with each other or may be spaced apart from each other.
- the conduction through the DC relay is allowed or blocked.
- the movement is achieved by a drive unit that applies a drive force to the movable contact.
- an arc is generated between the fixed contact and the movable contact.
- An arc is a flow of high-pressure, high-temperature current. Accordingly, the generated arc must be rapidly discharged from the DC relay through a preset path.
- the arc discharge path is formed by a magnet provided in the DC relay.
- the magnet forms a magnetic field in the space where the fixed contact and the movable contact are in contact.
- a discharge path of the arc may be formed by the formed magnetic field and electromagnetic force generated by the flow of current.
- FIG. 1 a space in which a fixed contact 1100 and a movable contact 1200 provided in a DC relay 1000 according to the prior art are in contact with each other is shown. As described above, the permanent magnet 1300 is provided in the space.
- the permanent magnet 1300 includes a first permanent magnet 1310 positioned on the upper side and a second permanent magnet 1320 positioned on the lower side.
- a plurality of first permanent magnets 1310 are provided, and the polarities of the surfaces facing the second permanent magnets 1320 are magnetized to have different polarities.
- the lower side of the first permanent magnet 1310 located on the left side of FIG. 1 is an N pole, and the second permanent magnet 1310 located on the right side of FIG. 1 is magnetized with an S pole side.
- a plurality of second permanent magnets 1320 are also provided, so that the polarity of each side facing the first permanent magnet 1310 is magnetized to a different polarity.
- the upper side of the second permanent magnet 1320 positioned on the left side of FIG. 1 is an S pole, and the second permanent magnet 1320 positioned on the right side of FIG. 1 is magnetized with an upper side with an N pole.
- FIG. 1A illustrates a state in which current flows in through the fixed contact 1100 on the left and flows out through the fixed contact 1100 on the right.
- the electromagnetic force is formed like a hatched arrow.
- the electromagnetic force is formed toward the outside. Accordingly, the arc generated at the location can be discharged to the outside.
- the electromagnetic force is formed toward the inside, that is, the central portion of the movable contact 1200 . Accordingly, the arc generated at the location is not immediately discharged to the outside.
- FIG. 1 shows a state in which current flows in through the fixed contact 1100 on the right and flows out through the fixed contact 1100 on the left.
- an electromagnetic force is formed with a hatched arrow.
- the electromagnetic force is formed toward the outside. Accordingly, the arc generated at the location can be discharged to the outside.
- the electromagnetic force is formed toward the inner side, that is, the central portion of the movable contact 1200 . Accordingly, the arc generated at the location is not immediately discharged to the outside.
- various members for driving the movable contact 1200 in the vertical direction are provided.
- a shaft, a spring member inserted through the shaft, etc. is provided at the above position.
- the direction of the electromagnetic force formed inside the DC relay 1000 depends on the direction of the current flowing through the fixed contact 1200 . That is, the position of the electromagnetic force formed in the inward direction among the electromagnetic forces generated at each fixed contact point 1100 is different depending on the direction of the current.
- the user must consider the direction of the current whenever using a DC relay. This may cause inconvenience to the use of the DC relay.
- a situation in which the direction of the current applied to the DC relay is changed due to inexperienced operation or the like cannot be excluded.
- the members provided in the central portion of the DC relay may be damaged by the generated arc. Accordingly, the durability life of the DC relay is reduced, and there is a risk that a safety accident may occur.
- Korean Patent Document No. 10-1696952 discloses a DC relay. Specifically, a DC relay having a structure capable of preventing movement of a movable contact using a plurality of permanent magnets is disclosed.
- the DC relay having the above-described structure can prevent movement of the movable contact by using a plurality of permanent magnets, but there is a limitation in that there is no consideration of a method for controlling the direction of the arc discharge path.
- Korean Patent Document No. 10-1216824 discloses a DC relay. Specifically, a DC relay having a structure capable of preventing arbitrary separation between a movable contact and a fixed contact using a damping magnet is disclosed.
- the DC relay having the above-described structure proposes only a method for maintaining the contact state between the movable contact and the fixed contact. That is, there is a limitation in that a method for forming an arc discharge path generated when the movable contact and the fixed contact are spaced apart cannot be proposed.
- Patent Document 1 Korean Patent Document No. 10-1696952 (2017. 01. 16.)
- Patent Document 2 Korean Patent Document No. 10-1216824 (2012. 12. 28.)
- An object of the present invention is to provide an arc path forming unit having a structure capable of solving the above-described problems and a DC relay including the same.
- an object of the present invention is to provide an arc path forming unit having a structure in which the generated arc does not extend to a central portion and a DC relay including the same.
- Another object of the present invention is to provide an arc path forming unit having a structure in which an arc discharge path can be formed toward the outside regardless of the direction of the current applied to the fixed contact, and a DC relay including the same.
- an object of the present invention is to provide an arc path forming unit having a structure capable of minimizing damage to a member positioned in a central portion by the generated arc and a DC relay including the same.
- an object of the present invention is to provide an arc path forming unit having a structure in which the generated arc is moved and sufficiently extinguished, and a DC relay including the same.
- an object of the present invention is to provide an arc path forming unit having a structure capable of strengthening the strength of a magnetic field for forming an arc discharge path, and a DC relay including the same.
- an object of the present invention is to provide an arc path forming unit having a structure capable of changing an arc discharge path without excessively changing the structure, and a DC relay including the same.
- an object of the present invention is to provide an arc path forming unit having a structure capable of rapidly extinguishing and discharging an arc generated as current is cut off and a DC relay including the same.
- an object of the present invention is to provide an arc path forming unit having a structure capable of strengthening the magnitude of the force for inducing the generated arc, and a DC relay including the same.
- Another object of the present invention is to provide an arc path forming unit having a structure that can prevent damage to components for energization by the generated arc and a DC relay including the same.
- an object of the present invention is to provide an arc path forming unit having a structure in which arcs generated at a plurality of positions can proceed without meeting each other, and a DC relay including the same.
- an object of the present invention is to provide an arc path forming unit having a structure capable of achieving the above object without excessive design changes and a DC relay including the same.
- the space is formed therein, the magnet frame including a plurality of surfaces surrounding the space; and a magnet part accommodated in the space to form a magnetic field in the space, wherein the plurality of surfaces include: a first surface extending in one direction; a second surface disposed to face the first surface and extending in the one direction; The first surface and the second surface are continuous with each other, each extending in the other direction, and a third surface and a fourth surface disposed to face each other, and the magnet part is located adjacent to the first surface a first magnet unit; a second magnet part positioned adjacent to the second surface and facing the first magnet part; a third magnet part and a fourth magnet part positioned adjacent to the third surface and arranged in parallel in the other direction in which the third surface extends; and a fifth magnet part and a sixth magnet part positioned adjacent to the fourth surface and arranged side by side in the other direction in which the fourth surface extends, wherein the first magnet part and the second magnet part mutually Each one
- a fixed contact extending in the one direction and a movable contact contacting or spaced apart from the fixed contact are accommodated, and the fixed contact includes a first fixed contact and a first fixed contact spaced apart from each other. and two fixed contacts, wherein in the first magnet part and the second magnet part, an imaginary line connecting the first magnet part and the second magnet part connects the first fixed contactor and the second fixed contact part. It may be arranged so as to intersect the virtual line.
- a fixed contact extending in the one direction and a movable contact contacting or spaced apart from the fixed contact are accommodated, and the third magnet part and the fourth magnet part face each other.
- One surface may be disposed to face each other with an imaginary straight line extending from the fixed contactor therebetween.
- a fixed contact extending in the one direction and a movable contact contacting or spaced apart from the fixed contact are accommodated, and the fifth magnet part and the sixth magnet part face each other.
- One surface may be disposed to face each other with an imaginary straight line extending from the fixed contactor therebetween.
- a fixed contact extending in one direction; a movable contact that is in contact with or spaced apart from the fixed contact; A space for accommodating the fixed contact and the movable contact is formed therein, and an arc path forming unit for forming a magnetic field in the space for inducing an arc generated by being spaced apart from the fixed contact and the movable contact is included, the arc
- the path forming unit may include: a magnet frame in which the space is formed and includes a plurality of surfaces surrounding the space; and a magnet part accommodated in the space and forming the magnetic field, wherein the plurality of surfaces include: a first surface extending in the one direction; a second surface disposed to face the first surface with the space portion interposed therebetween and extending in the one direction; and a third surface and a fourth surface that are continuous with the first surface and the second surface, respectively, extend in the other direction, and face each other with the space portion therebetween, wherein the magnet portion includes the first surface a first magnet portion
- the space is formed therein, the magnet frame including a plurality of surfaces surrounding the space; and a magnet part accommodated in the space to form a magnetic field in the space, wherein the plurality of surfaces include: a first surface extending in one direction; a second surface disposed to face the first surface and extending in the one direction; The first surface and the second surface are continuous with each other, each extending in the other direction, and a third surface and a fourth surface disposed to face each other, and the magnet part is located adjacent to the first surface a first magnet unit; a second magnet part positioned adjacent to the second surface and facing the first magnet part; a third magnet part positioned adjacent to the third surface and positioned to be biased toward any one of the first surface and the second surface; and a fourth magnet part positioned adjacent to the fourth surface and positioned to be biased toward the other of the first surface and the second surface, wherein the first magnet part and the second magnet part face each other Each one surface is magnetized to any one polarity of the S pole and
- a fixed contact extending in the one direction and a movable contact contacting or spaced apart from the fixed contact are accommodated, and the one surface of the third magnet part extends the fixed contact. It may be located between the imaginary straight line and any one of the surfaces.
- the fixed contact extending in the one direction and the movable contact being in contact with or spaced apart from the fixed contact are accommodated in the space, and the one surface of the fourth magnet part includes an imaginary straight line extending the fixed contact and the It may be located between the other side.
- a fixed contact extending in one direction; a movable contact that is in contact with or spaced apart from the fixed contact; A space for accommodating the fixed contact and the movable contact is formed therein, and an arc path forming unit for forming a magnetic field in the space for inducing an arc generated by being spaced apart from the fixed contact and the movable contact is included, the arc
- the path forming unit may include: a magnet frame in which the space is formed and includes a plurality of surfaces surrounding the space; and a magnet part accommodated in the space and forming the magnetic field, wherein the plurality of surfaces include: a first surface extending in the one direction; a second surface disposed to face the first surface and extending in the one direction; The first surface and the second surface are continuous with each other, each extending in the other direction, and a third surface and a fourth surface disposed to face each other, wherein the magnet part is located adjacent to the first surface, , extending in the one direction, the first magnet portion
- the space is formed therein, the magnet frame including a plurality of surfaces surrounding the space; and a magnet part accommodated in the space to form a magnetic field in the space, wherein the plurality of surfaces include: a first surface extending in one direction; a second surface disposed to face the first surface and extending in the one direction; The first surface and the second surface are continuous with each other, each extending in the other direction, and a third surface and a fourth surface disposed to face each other, and the magnet part is located adjacent to the first surface a first magnet unit; a second magnet part positioned adjacent to the second surface and facing the first magnet part; and a third magnet part positioned adjacent to any one of the third and fourth surfaces, and a third magnet positioned to be biased toward any one of the first and second surfaces, wherein the first magnet part and the Each of the surfaces of the second magnet unit facing each other and the surfaces of the third magnet unit facing the one surface provides an arc path forming unit that is magnetized with the same
- first magnet part and the second magnet part of the arc path forming part may be formed to extend in the one direction, and the third magnet part may be formed to extend in the other direction.
- the space is formed therein, the magnet frame comprising a plurality of surfaces surrounding the space; and a magnet part accommodated in the space to form a magnetic field in the space, wherein the plurality of surfaces include: a first surface extending in one direction; a second surface disposed to face the first surface and extending in the one direction; The first surface and the second surface are continuous with each other, each extending in the other direction, and a third surface and a fourth surface disposed to face each other, and the magnet part is located adjacent to the first surface a first magnet unit; a second magnet part positioned adjacent to the second surface and facing the first magnet part; a third magnet portion and a fourth magnet portion positioned adjacent to any one of the third surface and the fourth surface and arranged in parallel; and located adjacent to the other one of the third surface and the fourth surface, and disposed to face the third magnet part and the fourth magnet part, and to make any one of the first surface and the second surface and a fifth magnet part positioned to be biased on the surface, wherein the plurality of surfaces include:
- the third magnet part, the fourth magnet part, and the fifth magnet part of the arc path forming part are formed to extend in the other direction, and the fifth magnet part may include one of the third magnet part and the fourth magnet part. It may be arranged to overlap with any one in the other direction.
- a fixed contact extending in the one direction and a movable contact contacting or spaced apart from the fixed contact are accommodated, and the third magnet part and the fourth magnet part face each other.
- One surface may be disposed to face each other with an imaginary straight line extending from the fixed contactor therebetween.
- a fixed contact extending in the one direction and a movable contact contacting or spaced apart from the fixed contact are accommodated, and facing the other one of the first surface and the second surface.
- the other surface of the fifth magnet part may be positioned between an imaginary straight line extending the fixed contact and the one surface of the first surface and the second surface.
- a fixed contact extending in one direction; a movable contact that is in contact with or spaced apart from the fixed contact; A space for accommodating the fixed contact and the movable contact is formed therein, and an arc path forming unit for forming a magnetic field in the space for inducing an arc generated by being spaced apart from the fixed contact and the movable contact is included, the arc
- the path forming unit may include: a magnet frame in which the space is formed and includes a plurality of surfaces surrounding the space; and a magnet part accommodated in the space and forming the magnetic field, wherein the plurality of surfaces include: a first surface extending in the one direction; a second surface disposed to face the first surface and extending in the one direction; The first surface and the second surface are continuous with each other, each extending in the other direction, and a third surface and a fourth surface disposed to face each other, wherein the magnet part is located adjacent to the first surface, , a first magnet portion extending in the one direction
- each one surface facing each other of the third magnet part and the fourth magnet part is magnetized to the other one of the N pole and the S pole, and any one of the first surface and the second surface is One surface of the fifth magnet part facing provides a DC relay magnetized to any one of the N pole and the S pole.
- a space is formed therein, the magnet frame including a plurality of surfaces surrounding the space; and a magnet part accommodated in the space to form a magnetic field in the space, wherein the plurality of surfaces include: a first surface extending in one direction; a second surface disposed to face the first surface and extending in the one direction; The first surface and the second surface are continuous with each other, each extending in the other direction, and a third surface and a fourth surface disposed to face each other, and the magnet part is located adjacent to the first surface a first magnet unit; a second magnet part positioned adjacent to the second surface and facing the first magnet part; and a third magnet part and a fourth magnet part positioned adjacent to any one of the third surface and the fourth surface and arranged side by side, wherein the first magnet part and the second magnet part face each other Each one surface is magnetized to one of the polarity of the N pole and the S pole, and each one surface facing each other of the third magnet part and the fourth magnet part
- a fixed contact extending in the one direction and a movable contact contacting or spaced apart from the fixed contact are accommodated, and the third magnet part and the fourth magnet part face each other.
- One surface may be disposed to face each other with an imaginary straight line extending from the fixed contactor therebetween.
- first magnet part and the second magnet part of the arc path forming part are formed to extend in the one direction, and the third magnet part and the fourth magnet part are formed to extend in the other direction, the first magnet part and the second magnet part 2 It may be formed to extend by a length shorter than the magnet part.
- the fixed contact is formed extending in one direction; a movable contact that is in contact with or spaced apart from the fixed contact; A space for accommodating the fixed contact and the movable contact is formed therein, and an arc path forming unit for forming a magnetic field in the space for inducing an arc generated by being spaced apart from the fixed contact and the movable contact is included, the arc
- the path forming unit may include: a magnet frame in which the space is formed and includes a plurality of surfaces surrounding the space; and a magnet part accommodated in the space and forming the magnetic field, wherein the plurality of surfaces include: a first surface extending in the one direction; a second surface disposed to face the first surface and extending in the one direction; The first surface and the second surface are continuous with each other, each extending in the other direction, and a third surface and a fourth surface disposed to face each other, wherein the magnet part is located adjacent to the first surface, , a first magnet portion
- a magnetic frame formed with a space in which the fixed contact and the movable contact is accommodated therein; It is located in the space portion of the magnet frame, and includes a plurality of magnet portions forming a magnetic field in the space portion, the space portion, the length in one direction is formed to be longer than the length in the other direction, the magnet frame, the first and second surfaces extending in one direction and facing each other to surround a portion of the space portion; and a third surface and a fourth surface extending in the other direction, continuous with the first surface and the second surface, respectively, disposed to face each other and enclosing the remaining part of the space, a plurality of the magnets
- the portion may include: a first magnet portion positioned adjacent to any one of the third surface and the fourth surface; and a second magnet portion positioned adjacent to the other of the third surface and the fourth surface and disposed to face the first magnet portion with the space portion therebetween.
- the plurality of the magnet parts of the arc path forming part are positioned adjacent to any one of the first and second surfaces, and are positioned to be biased toward any one of the third and fourth surfaces.
- a third magnet unit; and a fourth magnet part positioned adjacent to the other one of the first and second surfaces, and positioned to be biased toward the other one of the third and fourth surfaces.
- a surface facing the space part and a surface of the second magnet part facing the space part are magnetized with the same polarity
- the third A surface and a surface facing the other one of the fourth surfaces, and a surface facing the one of the third surface and the fourth surface among the surfaces of the fourth magnet part have a polarity different from the polarity.
- the fixed contactor of the arc path forming part includes a first fixed contact and a second fixed contact spaced apart from each other along the one direction, and the third magnet part, the first fixed contact and the second
- the fourth magnet part may be positioned to overlap one of the fixed contacts in the other direction, and the fourth magnet part may be disposed to overlap the other one of the first fixed contact and the second fixed contact in the other direction.
- the plurality of the magnet parts of the arc path forming part are positioned adjacent to any one of the first and second surfaces, and are positioned to be biased toward any one of the third and fourth surfaces.
- a third magnet unit positioned adjacent to the other one of the first surface and the second surface, and positioned to be biased toward the one of the third surface and the fourth surface; and a fifth magnet part positioned adjacent to the one of the first surface and the second surface, and positioned to be biased toward the other one of the third surface and the fourth surface.
- a surface facing the space part and a surface of the second magnet part facing the space part are magnetized with the same polarity
- the third A surface and a surface facing the other one of the fourth surfaces and each surface facing the fourth magnet part and the fifth magnet part may be magnetized with a polarity different from the polarity.
- the fixed contactor of the arc path forming part includes a first fixed contact and a second fixed contact spaced apart from each other along the one direction, and the third magnet part, the first fixed contact and the second Any one of the fixed contacts and the fourth magnet part are positioned to overlap in the other direction, and the fifth magnet part is arranged to overlap the other one of the first fixed contact and the second fixed contact in the other direction.
- the plurality of the magnet parts of the arc path forming part are positioned adjacent to any one of the first and second surfaces, and are positioned to be biased toward any one of the third and fourth surfaces.
- a third magnet unit a fourth magnet part positioned adjacent to the one of the first and second surfaces, and positioned to be biased toward the other one of the third and fourth surfaces;
- a fifth magnet part positioned adjacent to the other one of the first surface and the second surface, and positioned to be biased toward the one of the third surface and the fourth surface;
- a sixth magnet part positioned adjacent to the other one of the first surface and the second surface, and positioned to be biased toward the other one of the third surface and the fourth surface.
- a surface of the arc path forming part facing the space part among the surfaces of the first magnet part and a surface of the second magnet part facing the space part are magnetized with the same polarity
- the third magnet part and the fourth magnet part are magnetized with the same polarity.
- Each side facing each other and each side facing the fifth magnet unit and the sixth magnet unit may be magnetized with a polarity different from the polarity.
- the fixed contactor of the arc path forming part includes a first fixed contact and a second fixed contact spaced apart from each other along the one direction, and the third magnet part, the first fixed contact and the second Any one of the fixed contacts and the fifth magnet part are positioned to overlap in the other direction, and the fourth magnet part includes the other one of the first fixed contact and the second fixed contact and the sixth magnet part and the other. It may be positioned to overlap in the direction.
- another embodiment of the present invention is provided with a plurality of fixed contacts that are spaced apart from each other in one direction; a movable contact contacting or spaced apart from the fixed contact; a magnet frame having a space in which the fixed contact and the movable contact are accommodated; It is located in the space portion of the magnet frame, and includes a plurality of magnet portions forming a magnetic field in the space portion, the space portion, the length of the one direction is formed longer than the length of the other direction, the magnet frame, first and second surfaces extending in the one direction and facing each other to surround a portion of the space portion; and a third surface and a fourth surface extending in the other direction, continuous with the first surface and the second surface, respectively, disposed to face each other and enclosing the remaining part of the space, a plurality of the magnets
- the portion may include: a first magnet portion positioned adjacent to any one of the third surface and the fourth surface; and a second magnet portion positioned adjacent to the other of the third surface and the fourth surface, and
- the plurality of the magnet parts of the DC relay are located adjacent to any one of the first and second surfaces, and are positioned to be biased toward any one of the third and fourth surfaces.
- a third magnet unit positioned adjacent to the other one of the first and second surfaces, and a fourth magnet positioned to be biased toward the other one of the third and fourth surfaces, wherein the third magnet The part may be disposed to overlap one of the plurality of fixed contacts in the other direction, and the fourth magnet part may be disposed to overlap with another one of the plurality of fixed contacts in the other direction.
- a surface facing the space and a surface of the second magnet facing the space are magnetized with the same polarity
- the surfaces of the third magnet, the third surface and a surface of the fourth surface facing the other surface, and a surface of the fourth magnet part facing the one of the third surface and the fourth surface are magnetized with a polarity different from the polarity.
- the plurality of the magnet parts of the DC relay are located adjacent to any one of the first and second surfaces, and are positioned to be biased toward any one of the third and fourth surfaces.
- a third magnet unit a fourth magnet part positioned adjacent to the other one of the first surface and the second surface, and positioned to be biased toward the one of the third surface and the fourth surface; and a fifth magnet part positioned adjacent to one of the first and second surfaces, and positioned to be biased toward the other one of the third and fourth surfaces, wherein the third The magnet part may be disposed to overlap any one of the plurality of fixed contacts and the fourth magnet part in the other direction, and the fifth magnet part may be disposed to overlap the other one of the plurality of fixed contacts in the other direction.
- a surface facing the space and a surface of the second magnet facing the space are magnetized with the same polarity
- the surfaces of the third magnet, the third surface and a surface facing the other one of the fourth surfaces, and each surface facing the fourth magnet part and the fifth magnet part may be magnetized with a polarity different from the polarity.
- the plurality of the magnet parts of the DC relay are located adjacent to any one of the first and second surfaces, and are positioned to be biased toward any one of the third and fourth surfaces.
- a third magnet unit a fourth magnet part positioned adjacent to the one of the first and second surfaces, and positioned to be biased toward the other one of the third and fourth surfaces; a fifth magnet part positioned adjacent to the other one of the first surface and the second surface, and positioned to be biased toward the one of the third surface and the fourth surface; and a sixth magnet part positioned adjacent to the other one of the first and second surfaces, and positioned to be biased toward the other one of the third and fourth surfaces,
- a third magnet part is disposed to overlap any one of the plurality of fixed contacts and the fifth magnet part in the other direction
- the fourth magnet part includes the other one of the plurality of fixed contacts and the sixth magnet part and the It may be arranged to overlap in other directions.
- a surface of the first magnet part of the DC relay facing the space and a surface of the second magnet part facing the space are magnetized with the same polarity
- the third magnet part and the fourth magnet part are magnetized with the same polarity.
- Each side facing each other and each side facing the fifth magnet part and the sixth magnet part may be magnetized with a polarity different from the polarity.
- the arc path forming unit forms a magnetic field inside the arc chamber.
- the magnetic field together with the current flowing through the stationary and movable contacts, forms an electromagnetic force.
- the electromagnetic force is formed in a direction away from the center of the arc chamber.
- first magnet portion and a second magnet portion are provided on the first surface and the second surface, respectively.
- Each surface of the first magnet part and the second magnet part facing each other is magnetized with the same polarity.
- a single or a plurality of magnet portions are provided on at least one of the third and fourth surfaces. At this time, the surface facing the first magnet part among the surfaces of the magnet part provided on the third surface or the fourth surface is magnetized with the same polarity as the surface of the first magnet part.
- the surface facing the second magnet part among the surfaces of the magnet part provided on the third surface or the fourth surface is magnetized with the same polarity as the surface of the second magnet part.
- the direction of the magnetic field formed between the first magnet part and the second magnet part, and the magnet part provided on the third or fourth surface is formed to be away from the central portion of the arc chamber.
- the generated arc is moved in the same direction as the direction of the electromagnetic force away from the center of the arc chamber. Accordingly, the generated arc is not moved to the central portion of the arc chamber.
- the electromagnetic force formed in the vicinity of each fixed contact is formed in a direction away from the center regardless of the direction of the current.
- the user does not need to connect power to the DC relay in consideration of the direction in which the arc moves. Accordingly, user convenience may be increased.
- the generated arc extends toward the center of the magnet frame, which is a narrow space, that is, a wider space, that is, the outside of the fixed contact, rather than between the fixed contacts.
- the arc travels a long path and can be sufficiently extinguished.
- each magnet unit can form electromagnetic force in various directions just by changing the arrangement method and the polarity. At this time, a change in structure and shape of the magnet frame provided with each magnet part is not required.
- the discharge direction of the arc can be easily changed without excessively changing the entire structure of the arc path forming unit. Accordingly, user convenience may be increased.
- the arc path forming portion includes a magnet portion.
- Each of the magnet units forms a magnetic field inside the arc path forming unit.
- the formed magnetic field forms an electromagnetic force together with the current passed through the fixed and movable contacts accommodated in the arc path forming unit.
- the generated arc is formed in a direction away from each fixed contact.
- the arc generated by the fixed contact and the movable contact being spaced apart may be induced by the electromagnetic force.
- the generated arc can be quickly extinguished and discharged to the outside of the arc path forming unit and the DC relay.
- a plurality of magnet units may be provided.
- the plurality of magnets are formed to strengthen the strength of electromagnetic force formed in the vicinity of each fixed contact. That is, the arc path forming parts formed in the vicinity of the same fixed contactor are formed in the same direction by the different magnet parts.
- the strength of the magnetic field formed in the vicinity of each fixed contact and the strength of the electromagnetic force depending on the strength of the magnetic field may also be strengthened.
- the intensity of the electromagnetic force that induces the generated arc is strengthened, so that the generated arc can be effectively extinguished and discharged.
- the direction of the electromagnetic force formed by the magnetic field formed by the magnet unit and the current passed through the fixed contactor and the movable contactor is formed in a direction away from the center.
- the arc generated can be extinguished and moved quickly in a direction away from the center.
- a plurality of fixed contacts may be provided.
- the magnet unit provided in the arc path forming unit forms magnetic fields in different directions in the vicinity of each fixed contact. Accordingly, the paths of arcs generated in the vicinity of each fixed contact proceed in different directions.
- the arc path forming portion includes a magnet portion provided in the space portion.
- the magnet portion is located inwardly on each side of the magnet frame surrounding the space portion. That is, a separate design change for disposing the magnet part outside the space part is not required.
- the arc path forming unit according to various embodiments of the present disclosure may be provided in the DC relay without excessive design change. Accordingly, time and cost for applying the arc path forming unit according to various embodiments of the present disclosure may be reduced.
- FIG. 1 is a conceptual diagram illustrating a process in which a movement path of an arc is formed in a DC relay according to the prior art.
- FIG. 2 is a perspective view of a DC relay according to an embodiment of the present invention.
- FIG. 3 is a cross-sectional view of the DC relay of FIG. 2 .
- FIG. 4 is a partially opened perspective view of the DC relay of FIG. 2 .
- FIG. 5 is a conceptual diagram illustrating an arc path forming unit according to a first embodiment of the present invention.
- FIG. 6 is a conceptual diagram illustrating a path of a magnetic field and an arc formed by the arc path forming unit according to the embodiment of FIG. 5 .
- FIG. 7 and 8 are conceptual views illustrating an arc path forming unit according to a second embodiment of the present invention.
- FIGS. 9 and 10 are conceptual views illustrating magnetic fields and arc paths formed by the arc path forming unit according to the embodiment of FIGS. 7 and 8 .
- 11 to 14 are conceptual views illustrating an arc path forming unit according to a third embodiment of the present invention.
- 15 to 18 are conceptual views illustrating magnetic fields and arc paths formed by the arc path forming unit according to the embodiment of FIGS. 11 to 14 .
- FIG. 19 is a conceptual diagram illustrating an arc path forming unit according to a fourth embodiment of the present invention.
- 20 and 21 are conceptual views illustrating a path of an arc formed by the arc path forming unit of FIG. 19 .
- 22 and 23 are conceptual views illustrating an arc path forming unit according to a fifth embodiment of the present invention.
- 24 to 27 are conceptual views illustrating a modified example of an arc path forming unit according to a fifth embodiment of the present invention.
- 28 and 29 are conceptual diagrams illustrating a path of an arc formed by the arc path forming unit of FIG. 22 .
- 30 and 31 are conceptual views illustrating a path of an arc formed by the arc path forming unit of FIG. 23 .
- 32 and 33 are conceptual diagrams illustrating an arc path formed by the arc path forming unit of FIG. 24 .
- 34 and 35 are conceptual views illustrating a path of an arc formed by the arc path forming unit of FIG. 25 .
- 36 and 37 are conceptual views illustrating a path of an arc formed by the arc path forming unit of FIG. 26 .
- 38 and 39 are conceptual diagrams illustrating a path of an arc formed by the arc path forming unit of FIG. 27 .
- 40 to 43 are conceptual views illustrating an arc path forming unit according to a sixth embodiment of the present invention.
- 44 and 45 are conceptual views illustrating a modified example of an arc path forming unit according to a sixth embodiment of the present invention.
- 46 and 47 are conceptual views illustrating an arc path formed by the arc path forming unit of FIG. 40 .
- 48 and 49 are conceptual diagrams illustrating a path of an arc formed by the arc path forming unit of FIG. 41 .
- 50 and 51 are conceptual diagrams illustrating a path of an arc formed by the arc path forming unit of FIG. 42 .
- 52 and 53 are conceptual diagrams illustrating a path of an arc formed by the arc path forming unit of FIG. 43 .
- 54 and 55 are conceptual diagrams illustrating an arc path formed by the arc path forming unit of FIG. 44 .
- 56 and 57 are conceptual diagrams illustrating an arc path formed by the arc path forming unit of FIG. 45 .
- magnetize used in the following description refers to a phenomenon in which an object becomes magnetic in a magnetic field.
- polarity used in the following description refers to different properties of an anode and a cathode of an electrode. In an embodiment, the polarity may be divided into an N pole or an S pole.
- electrical current used in the following description refers to a state in which two or more members are electrically connected.
- arc path means a path through which the generated arc is moved or extinguished.
- ⁇ shown in the following drawings means the direction in which the current flows from the movable contact 43 toward the fixed contact 22 (ie, upward direction), that is, the flow in the direction coming out of the ground.
- x shown in the following drawings means a direction in which current flows from the fixed contactor 22 toward the movable contactor 43 (ie, downward direction), that is, a direction that penetrates the ground.
- magnet used in the following description refers to an object of any shape that is formed of a magnetic material and can form a magnetic field.
- the magnet unit may be provided with a permanent magnet or an electromagnet.
- the magnet part may form a magnetic field by itself or in conjunction with another magnetic material.
- MM F Main Magnetic Field
- SM F Sub Magnetic Field
- the magnet part may extend in one direction.
- the magnet unit may be magnetized to have different polarities at both ends in the one direction (ie, have different polarities in the longitudinal direction).
- the magnet part may be magnetized to have different polarities on both sides of the one direction and the other direction (ie, have different polarities in the width direction).
- the DC relay 1 includes a frame part 10 , an opening/closing part 20 , a core part 30 , and a movable contact part 40 .
- the DC relay 1 is an arc path and forming portions 100 , 200 , 300 , 500 , 600 and 700 .
- the arc path forming units 100 , 200 , 300 , 500 , 600 , and 700 may form a discharge path of the generated arc.
- the arc path forming units 100 , 200 , 300 , 500 , 600 , and 700 are described on the assumption that the direct current relay 1 is provided.
- the arc path forming part (100, 200, 300, 500, 600, 700) is energized and energized with the outside by the contact and separation of fixed and movable contacts such as magnetic contactors and magnetic switches. It will be appreciated that it may be applied to devices of a releasable type.
- the frame part 10 forms the outside of the DC relay 1 .
- a predetermined space is formed inside the frame part 10 .
- Various devices that perform a function for the DC relay 1 to apply or block an externally transmitted current may be accommodated in the space.
- the frame part 10 functions as a kind of housing.
- the frame part 10 may be formed of an insulating material such as synthetic resin. This is to prevent arbitrarily energizing the inside and outside of the frame part 10 .
- the frame part 10 includes an upper frame 11 , a lower frame 12 , an insulating plate 13 , and a support plate 14 .
- the upper frame 11 forms the upper side of the frame part 10 .
- a predetermined space is formed inside the upper frame 11 .
- the opening/closing part 20 and the movable contact part 40 may be accommodated in the inner space of the upper frame 11 .
- the arc path forming units 500 , 600 , and 700 may be accommodated in the inner space of the upper frame 11 .
- the upper frame 11 may be coupled to the lower frame 12 .
- An insulating plate 13 and a support plate 14 may be provided in a space between the upper frame 11 and the lower frame 12 .
- the fixed contact 22 of the opening and closing unit 20 is positioned on the upper side in the illustrated embodiment. A portion of the fixed contactor 22 is exposed on the upper side of the upper frame 11 , and may be electrically connected to an external power source or load.
- a through hole through which the fixed contact 22 is coupled may be formed in the upper side of the upper frame 11 .
- the lower frame 12 forms the lower side of the frame portion 10 .
- a predetermined space is formed inside the lower frame 12 .
- the core part 30 may be accommodated in the inner space of the lower frame 12 .
- the lower frame 12 may be coupled to the upper frame 11 .
- An insulating plate 13 and a support plate 14 may be provided in a space between the lower frame 12 and the upper frame 11 .
- the insulating plate 13 and the supporting plate 14 electrically and physically separate the inner space of the upper frame 11 and the inner space of the lower frame 12 .
- the insulating plate 13 is positioned between the upper frame 11 and the lower frame 12 .
- the insulating plate 13 electrically separates the upper frame 11 and the lower frame 12 from each other.
- the insulating plate 13 may be formed of an insulating material such as synthetic resin.
- a through hole (not shown) is formed in the center of the insulating plate 13 .
- the shaft 44 of the movable contact part 40 is coupled through the through hole (not shown) to be movable in the vertical direction.
- a support plate 14 is positioned below the insulating plate 13 .
- the insulating plate 13 may be supported by the support plate 14 .
- the support plate 14 is positioned between the upper frame 11 and the lower frame 12 .
- the support plate 14 physically separates the upper frame 11 and the lower frame 12 .
- the support plate 14 supports the insulating plate 13 .
- the support plate 14 may be formed of a magnetic material. Accordingly, the support plate 14 may form a magnetic circuit together with the yoke 33 of the core part 30 . The magnetic path may generate a driving force for moving the movable core 32 of the core part 30 toward the fixed core 31 .
- a through hole (not shown) is formed in the center of the support plate 14 .
- a shaft 44 is coupled through the through hole (not shown) to be movable in the vertical direction.
- the shaft 44 and the movable contact 43 connected to the shaft 44 are also in the same direction. can be moved together.
- the opening/closing unit 20 permits or blocks current flow according to the operation of the core unit 30 . Specifically, the opening/closing unit 20 may allow or block the flow of current by contacting or separating the fixed contactor 22 and the movable contactor 43 from each other.
- the opening/closing part 20 is accommodated in the inner space of the upper frame 11 .
- the opening/closing part 20 may be electrically and physically spaced apart from the core part 30 by the insulating plate 13 and the supporting plate 14 .
- the opening/closing part 20 includes an arc chamber 21 , a fixed contact 22 , and a sealing member 23 .
- arc path forming units 500 , 600 , and 700 may be provided outside the arc chamber 21 .
- the arc path forming units 500 , 600 , and 700 may form a magnetic field for forming a path A. P of an arc generated inside the arc chamber 21 . A detailed description thereof will be provided later.
- the arc chamber 21 extinguishes the arc generated by the fixed contact 22 and the movable contact 43 being spaced apart from each other in the inner space. Accordingly, the arc chamber 21 may be referred to as an “arc extinguishing unit”.
- the arc chamber 21 hermetically accommodates the fixed contact 22 and the movable contact 43 . That is, the fixed contact 22 and the movable contact 43 are accommodated in the arc chamber 21 . Accordingly, the arc generated by the fixed contact 22 and the movable contact 43 being spaced apart is not arbitrarily leaked to the outside.
- the arc chamber 21 may be filled with an extinguishing gas.
- the extinguishing gas allows the generated arc to be extinguished and discharged to the outside of the DC relay 1 through a preset path.
- a communication hole (not shown) may be formed through the wall surrounding the inner space of the arc chamber 21 .
- the arc chamber 21 may be formed of an insulating material.
- the arc chamber 21 may be formed of a material having high pressure resistance and high heat resistance. This is because the generated arc is a flow of high-temperature and high-pressure electrons.
- the arc chamber 21 may be formed of a ceramic material.
- a plurality of through-holes may be formed in the upper side of the arc chamber 21 .
- a fixed contact 22 is through-coupled to each of the through holes.
- the fixed contactor 22 is provided in two, including the first fixed contactor 22a and the second fixed contactor 22b. Accordingly, two through-holes formed on the upper side of the arc chamber 21 may also be formed.
- the through-hole When the fixed contact 22 is through-coupled to the through-hole, the through-hole is sealed. That is, the fixed contact 22 is hermetically coupled to the through hole. Accordingly, the generated arc is not discharged to the outside through the through hole.
- the lower side of the arc chamber 21 may be open.
- the insulating plate 13 and the sealing member 23 are in contact with the lower side of the arc chamber 21 . That is, the lower side of the arc chamber 21 is sealed by the insulating plate 13 and the sealing member 23 .
- the arc chamber 21 may be electrically and physically spaced apart from the outer space of the upper frame 11 .
- the arc extinguished in the arc chamber 21 is discharged to the outside of the DC relay 1 through a preset path.
- the extinguished arc may be discharged to the outside of the arc chamber 21 through the communication hole (not shown).
- the fixed contactor 22 is in contact with or spaced apart from the movable contactor 43 to apply or cut off the electric current inside and outside the DC relay 1 .
- the inside and the outside of the DC relay 1 may be energized.
- the fixed contactor 22 is spaced apart from the movable contactor 43 , the electric current inside and outside the DC relay 1 is cut off.
- the fixed contact 22 is not moved. That is, the fixed contact 22 is fixedly coupled to the upper frame 11 and the arc chamber 21 . Accordingly, contact and separation of the fixed contact 22 and the movable contact 43 is achieved by the movement of the movable contact 43 .
- One end of the fixed contact 22 is exposed to the outside of the upper frame 11 .
- a power source or a load is connected to the one end to be energized, respectively.
- a plurality of fixed contacts 22 may be provided.
- the fixed contactor 22 includes a first fixed contactor 22a on the left and a second fixed contactor 22b on the right, and a total of two fixed contacts 22b are provided.
- the first fixed contact 22a is located to one side from the longitudinal center of the movable contact 43, and to the left in the illustrated embodiment.
- the second fixed contactor 22b is located at the other side from the center in the longitudinal direction of the movable contactor 43 to the right in the illustrated embodiment.
- a power source may be energably connected to any one of the first fixed contactor 22a and the second fixed contactor 22b.
- a load may be electrically connected to the other one of the first fixed contactor 22a and the second fixed contactor 22b.
- the DC relay 1 may form the arc path A. P regardless of the direction of the power or load connected to the fixed contactor 22 . This is accomplished by the arc path forming units 500 , 600 , and 700 , which will be described later in detail.
- the other end of the stationary contact 22 in the illustrated embodiment the lower end, extends towards the movable contact 43 .
- the lower end is in contact with the movable contact 43 . Accordingly, the outside and the inside of the DC relay 1 can be energized.
- the lower end of the fixed contact 22 is located inside the arc chamber 21 .
- the movable contact 43 When the control power is cut off, the movable contact 43 is spaced apart from the fixed contact 22 by the elastic force of the return spring 36 .
- an arc is generated between the fixed contact 22 and the movable contact 43 .
- the generated arc is extinguished by the extinguishing gas inside the arc chamber 21 , and may be discharged to the outside along a path formed by the arc path forming units 500 , 600 , and 700 .
- the sealing member 23 blocks any communication between the arc chamber 21 and the space inside the upper frame 11 .
- the sealing member 23 seals the lower side of the arc chamber 21 together with the insulating plate 13 and the support plate 14 .
- the upper side of the sealing member 23 is coupled to the lower side of the arc chamber (21). Further, the radially inner side of the sealing member 23 is coupled to the outer periphery of the insulating plate 13 , and the lower side of the sealing member 23 is coupled to the support plate 14 .
- the arc generated in the arc chamber 21 and the arc extinguished by the extinguishing gas do not flow out of the mouth into the inner space of the upper frame 11 .
- sealing member 23 may be configured to block any communication between the inner space of the cylinder 37 and the inner space of the frame portion 10 .
- the core part 30 moves the movable contact part 40 upward according to the application of the control power. In addition, when the application of the control power is released, the core part 30 moves the movable contact part 40 downward again.
- the core unit 30 may be electrically connected to an external control power source (not shown) to receive control power.
- the core part 30 is located below the opening/closing part 20 .
- the core part 30 is accommodated in the lower frame 12 .
- the core part 30 and the opening/closing part 20 may be electrically and physically spaced apart from each other by the insulating plate 13 and the support plate 14 .
- a movable contact part 40 is positioned between the core part 30 and the opening/closing part 20 .
- the movable contact part 40 may be moved by the driving force applied by the core part 30 . Accordingly, the movable contactor 43 and the fixed contactor 22 may be in contact so that the DC relay 1 may be energized.
- the core part 30 includes a fixed core 31 , a movable core 32 , a yoke 33 , a bobbin 34 , a coil 35 , a return spring 36 , and a cylinder 37 .
- the fixed core 31 is magnetized by the magnetic field generated by the coil 35 to generate electromagnetic attraction.
- the movable core 32 is moved toward the fixed core 31 (upward direction in FIG. 3 ).
- the fixed core 31 is not moved. That is, the fixed core 31 is fixedly coupled to the support plate 14 and the cylinder 37 .
- the fixed core 31 may be provided in any shape capable of generating electromagnetic force by being magnetized by a magnetic field.
- the fixed core 31 may be provided with a permanent magnet or an electromagnet.
- the fixed core 31 is partially accommodated in the upper space inside the cylinder 37 . Further, the outer periphery of the fixed core 31 is in contact with the inner periphery of the cylinder 37 .
- the fixed core 31 is positioned between the support plate 14 and the movable core 32 .
- a through hole (not shown) is formed in the central portion of the fixed core 31 .
- a shaft 44 is through-coupled to the through hole (not shown) so as to be movable up and down.
- the fixed core 31 is positioned to be spaced apart from the movable core 32 by a predetermined distance. Accordingly, the distance at which the movable core 32 can be moved toward the fixed core 31 may be limited to the predetermined distance. Accordingly, the predetermined distance may be defined as a “moving distance of the movable core 32”.
- One end of the return spring 36 is in contact with the lower side of the fixed core 31 , and the upper end in the illustrated embodiment is in contact.
- the return spring 36 is compressed and a restoring force is stored.
- the movable core 32 may be returned to the lower side by the restoring force.
- the movable core 32 is moved toward the fixed core 31 by electromagnetic attraction generated by the fixed core 31 when control power is applied.
- the shaft 44 coupled to the movable core 32 moves upward in the direction toward the fixed core 31 , in the illustrated embodiment.
- the movable contact part 40 coupled to the shaft 44 moves upward.
- the fixed contactor 22 and the movable contactor 43 are in contact so that the DC relay 1 can be energized with an external power source or load.
- the movable core 32 may be provided in any shape capable of receiving attractive force by electromagnetic force.
- the movable core 32 may be formed of a magnetic material, or may be provided with a permanent magnet or an electromagnet.
- the movable core 32 is accommodated in the cylinder 37 .
- the movable core 32 may be moved in the longitudinal direction of the cylinder 37 inside the cylinder 37 , in the illustrated embodiment, in the vertical direction.
- the movable core 32 may be moved in a direction toward the fixed core 31 and in a direction away from the fixed core 31 .
- the movable core 32 is coupled to the shaft 44 .
- the movable core 32 may move integrally with the shaft 44 .
- the shaft 44 also moves upward or downward. Accordingly, the movable contact 43 is also moved upward or downward.
- the movable core 32 is located below the fixed core 31 .
- the movable core 32 is spaced apart from the fixed core 31 by a predetermined distance. As described above, the predetermined distance is a distance at which the movable core 32 can be moved in the vertical direction.
- the movable core 32 is formed to extend in the longitudinal direction.
- a hollow part extending in the longitudinal direction is recessed by a predetermined distance inside the movable core 32 .
- a return spring 36 and a lower side of the shaft 44 through-coupled to the return spring 36 are partially accommodated in the hollow portion.
- a through hole is formed through the lower side of the hollow part in the longitudinal direction.
- the hollow portion and the through hole communicate with each other.
- the lower end of the shaft 44 inserted into the hollow portion may proceed toward the through hole.
- a space portion is recessed by a predetermined distance at the lower end of the movable core 32 .
- the space portion communicates with the through hole.
- the lower head of the shaft 44 is positioned in the space.
- the yoke 33 forms a magnetic circuit as control power is applied.
- the magnetic path formed by the yoke 33 may be configured to adjust the direction of the magnetic field formed by the coil 35 .
- the coil 35 may generate a magnetic field in a direction in which the movable core 32 moves toward the fixed core 31 .
- the yoke 33 may be formed of a conductive material capable of conducting electricity.
- the yoke 33 is accommodated in the lower frame 12 .
- the yoke 33 surrounds the coil 35 .
- the coil 35 may be accommodated in the yoke 33 so as to be spaced apart from the inner circumferential surface of the yoke 33 by a predetermined distance.
- the bobbin 34 is accommodated in the yoke 33 . That is, the yoke 33 , the coil 35 , and the bobbin 34 on which the coil 35 is wound are sequentially arranged in a direction radially inward from the outer periphery of the lower frame 12 .
- the upper side of the yoke 33 is in contact with the support plate 14 .
- the outer periphery of the yoke 33 may be in contact with the inner periphery of the lower frame 12 or may be positioned to be spaced apart from the inner periphery of the lower frame 12 by a predetermined distance.
- a coil 35 is wound around the bobbin 34 .
- the bobbin 34 is accommodated inside the yoke 33 .
- the bobbin 34 may include flat upper and lower portions, and a cylindrical column extending in the longitudinal direction to connect the upper and lower portions. That is, the bobbin 34 has a bobbin shape.
- the upper portion of the bobbin 34 is in contact with the lower side of the support plate 14 .
- a coil 35 is wound around the column portion of the bobbin 34 .
- a thickness around which the coil 35 is wound may be equal to or smaller than diameters of upper and lower portions of the bobbin 34 .
- a hollow portion extending in the longitudinal direction is formed through the column portion of the bobbin 34 .
- a cylinder 37 may be accommodated in the hollow portion.
- the pillar portion of the bobbin 34 may be disposed to have the same central axis as the fixed core 31 , the movable core 32 , and the shaft 44 .
- the coil 35 generates a magnetic field by the applied control power.
- the fixed core 31 is magnetized by the magnetic field generated by the coil 35 , so that electromagnetic attraction may be applied to the movable core 32 .
- the coil 35 is wound around a bobbin 34 . Specifically, the coil 35 is wound on the column part of the bobbin 34 and is stacked radially outward of the column part. The coil 35 is accommodated inside the yoke 33 .
- the coil 35 When the control power is applied, the coil 35 generates a magnetic field. In this case, the strength or direction of the magnetic field generated by the coil 35 may be controlled by the yoke 33 .
- the fixed core 31 is magnetized by the magnetic field generated by the coil 35 .
- the movable core 32 When the fixed core 31 is magnetized, the movable core 32 receives an electromagnetic force in a direction toward the fixed core 31 , that is, an attractive force. Accordingly, the movable core 32 is moved upward in the direction toward the fixed core 31 , in the illustrated embodiment.
- the return spring 36 provides a restoring force for the movable core 32 to return to its original position when the application of the control power is released after the movable core 32 is moved toward the fixed core 31 .
- the return spring 36 is compressed as the movable core 32 moves toward the stationary core 31 and stores a restoring force.
- the stored restoring force is preferably smaller than the electromagnetic attraction force exerted on the movable core 32 by magnetizing the fixed core 31 . This is to prevent the movable core 32 from being arbitrarily returned to its original position by the return spring 36 while the control power is applied.
- the movable core 32 When the application of the control power is released, the movable core 32 receives a restoring force by the return spring 36 .
- gravity due to the empty weight of the movable core 32 may also act on the movable core 32 . Accordingly, the movable core 32 may be moved in a direction away from the fixed core 31 to return to the original position.
- the return spring 36 may be provided in any form that is deformed in shape to store the restoring force, returns to its original shape, and transmits the restoring force to the outside.
- the return spring 36 may be provided as a coil spring.
- a shaft 44 is through-coupled to the return spring 36 .
- the shaft 44 may move in the vertical direction regardless of the shape deformation of the return spring 36 in a state in which the return spring 36 is coupled.
- the return spring 36 is accommodated in a hollow formed in the upper side of the movable core 32 .
- one end of the return spring 36 facing the fixed core 31 is accommodated in the hollow formed in the lower side of the fixed core (31).
- the cylinder 37 houses the stationary core 31 , the movable core 32 , the return spring 36 and the shaft 44 .
- the movable core 32 and the shaft 44 may move upward and downward in the cylinder 37 .
- the cylinder 37 is located in a hollow formed in the column portion of the bobbin 34 .
- the upper end of the cylinder 37 is in contact with the lower surface of the support plate 14 .
- the side surface of the cylinder 37 is in contact with the inner peripheral surface of the column part of the bobbin 34 .
- the upper opening of the cylinder 37 may be sealed by the fixed core 31 .
- the lower surface of the cylinder 37 may be in contact with the inner surface of the lower frame 12 .
- the movable contact part 40 includes a movable contact 43 and a structure for moving the movable contact 43 .
- the DC relay 1 may be energized with an external power source or load.
- the movable contact part 40 is accommodated in the inner space of the upper frame 11 .
- the movable contact part 40 is accommodated in the arc chamber 21 to be movable up and down.
- a fixed contact 22 is positioned above the movable contact part 40 .
- the movable contact part 40 is accommodated in the arc chamber 21 so as to be movable in a direction toward the fixed contact 22 and a direction away from the fixed contact 22 .
- the core part 30 is positioned below the movable contact part 40 .
- the movement of the movable contact portion 40 may be achieved by movement of the movable core 32 .
- the movable contact part 40 includes a housing 41 , a cover 42 , a movable contact 43 , a shaft 44 , and an elastic part 45 .
- the housing 41 accommodates the movable contact 43 and the elastic part 45 for elastically supporting the movable contact 43 .
- the housing 41 has one side and the other side opposite thereto open.
- the movable contact 43 may be inserted through the open portion.
- the unopened side of the housing 41 may be configured to surround the accommodated movable contact 43 .
- a cover 42 is provided on the upper side of the housing 41 .
- the cover 42 covers the upper surface of the movable contact 43 accommodated in the housing 41 .
- the housing 41 and the cover 42 are preferably formed of an insulating material to prevent unintentional energization.
- the housing 41 and the cover 42 may be formed of a synthetic resin or the like.
- the lower side of the housing 41 is connected to the shaft 44 .
- the housing 41 and the movable contact 43 accommodated therein may also be moved upward or downward.
- the housing 41 and the cover 42 may be coupled by any member.
- the housing 41 and the cover 42 may be coupled by a fastening member (not shown) such as a bolt or a nut.
- the movable contactor 43 is in contact with the fixed contactor 22 according to the application of the control power, so that the DC relay 1 is energized with an external power source and a load.
- the movable contactor 43 is spaced apart from the fixed contactor 22 when the application of the control power is released, so that the DC relay 1 does not conduct electricity with an external power source and a load.
- the movable contact 43 is positioned adjacent to the stationary contact 22 .
- the upper side of the movable contact 43 is partially covered by the cover 42 .
- a portion of the upper surface of the movable contactor 43 may be in contact with the lower surface of the cover 42 .
- the lower side of the movable contact 43 is elastically supported by the elastic part 45 .
- the elastic part 45 may elastically support the movable contact 43 in a compressed state by a predetermined distance.
- the movable contact 43 is formed to extend in the longitudinal direction, in the illustrated embodiment, in the left-right direction. That is, the length of the movable contact 43 is formed longer than the width. Accordingly, both ends of the movable contact 43 accommodated in the housing 41 in the longitudinal direction are exposed to the outside of the housing 41 .
- Contact protrusions that are formed to protrude upward by a predetermined distance may be formed at both ends.
- a fixed contact 22 is in contact with the contact protrusion.
- the contact protrusion may be formed at a position corresponding to each of the fixed contacts 220a and 220b. Accordingly, the moving distance of the movable contactor 43 may be reduced, and contact reliability between the fixed contactor 22 and the movable contactor 43 may be improved.
- a width of the movable contact 43 may be equal to a distance at which each side of the housing 41 is spaced apart from each other. That is, when the movable contact 43 is accommodated in the housing 41 , both sides of the movable contact 43 in the width direction may contact the inner surface of each side of the housing 41 .
- a state in which the movable contact 43 is accommodated in the housing 41 may be stably maintained.
- the shaft 44 transmits a driving force generated when the core part 30 is operated to the movable contact part 40 .
- the shaft 44 is connected to the movable core 32 and the movable contact 43 .
- the movable contact 43 may also be moved upward or downward by the shaft 44 .
- the shaft 44 is formed to extend in the longitudinal direction, in the illustrated embodiment, in the vertical direction.
- the lower end of the shaft 44 is insertedly coupled to the movable core 32 .
- the shaft 44 may be moved in the vertical direction together with the movable core 32 .
- the body portion of the shaft 44 is vertically movably coupled through the fixed core 31 .
- a return spring 36 is coupled through the body portion of the shaft 44 .
- the upper end of the shaft 44 is coupled to the housing 41 .
- the shaft 44 and the housing 41 may be moved together.
- the upper and lower ends of the shaft 44 may be formed to have a larger diameter than the body portion of the shaft. Accordingly, the shaft 44 may be stably maintained with the housing 41 and the movable core 32 .
- the elastic part 45 elastically supports the movable contact 43 .
- the movable contact 43 comes into contact with the fixed contact 22 , the movable contact 43 tends to be separated from the fixed contact 22 by electromagnetic repulsive force.
- the elastic part 45 elastically supports the movable contact 43 to prevent the movable contact 43 from being arbitrarily separated from the fixed contact 22 .
- the elastic part 45 may be provided in any shape capable of storing a restoring force by deformation of a shape and providing the stored restoring force to another member.
- the elastic part 45 may be provided as a coil spring.
- One end of the elastic part 45 facing the movable contact 43 is in contact with the lower side of the movable contact 43 .
- the other end opposite to the one end is in contact with the upper side of the housing 41 .
- the elastic part 45 may be compressed by a predetermined distance to elastically support the movable contact 43 in a state in which restoring force is stored. Accordingly, even if an electromagnetic repulsive force is generated between the movable contact 43 and the fixed contact 22 , the movable contact 43 is not arbitrarily moved.
- a protrusion (not shown) inserted into the elastic part 45 may be protruded under the movable contact 43 .
- a protrusion (not shown) inserted into the elastic part 45 may protrude from the upper side of the housing 41 .
- arc path forming units 100 , 200 , and 300 according to various embodiments of the present disclosure are illustrated.
- Each of the arc path forming units 100 , 200 , and 300 forms a magnetic field inside the arc chamber 21 .
- the magnetic field formed by the arc path forming units 100 , 200 , and 300 according to an embodiment of the present invention is shown by a dashed-dotted line in each figure.
- An electromagnetic force is formed in the arc chamber 21 by the current flowing through the DC relay 1 and the formed magnetic field.
- the arc generated as the fixed contact 22 and the movable contact 43 are spaced apart is moved to the outside of the arc chamber 21 by the formed electromagnetic force. Specifically, the generated arc is moved along the direction of the formed electromagnetic force. Accordingly, it can be said that the arc path forming units 100 , 200 , and 300 form the arc path A.P, which is a path through which the generated arc flows.
- the arc path forming units 100 , 200 , and 300 are located in a space formed inside the upper frame 11 .
- the arc path forming units 100 , 200 , and 300 are disposed to surround the arc chamber 21 .
- the arc chamber 21 is located inside the arc path forming part 100 , 200 , 300 .
- a fixed contact 22 and a movable contact 43 are positioned inside the arc path forming units 100 , 200 , and 300 .
- the arc generated by the fixed contact 22 and the movable contact 43 being spaced apart may be induced by electromagnetic force formed by the arc path forming units 100 , 200 , and 300 .
- the arc path forming units 100 , 200 , and 300 include a magnet unit.
- the magnet unit forms a magnetic field inside the arc path forming unit 100 in which the fixed contact 22 and the movable contact 43 are accommodated. At this time, the magnet part may form a magnetic field by itself and with each other.
- the magnetic field formed by the magnet part forms an electromagnetic force together with the current passed through the fixed contact 22 and the movable contact 43 .
- the formed electromagnetic force induces an arc generated when the fixed contact 22 and the movable contact 43 are spaced apart.
- the arc path forming units 100 , 200 , and 300 form an electromagnetic force in a direction away from the center C of the space portions 115 , 215 , 315 . Accordingly, the arc path A.P is also formed in a direction away from the center portion C of the space.
- each component provided in the DC relay 1 is not damaged by the generated arc. Furthermore, the generated arc can be rapidly discharged to the outside of the arc chamber 21 .
- each arc path forming unit 100 , 200 , and 300 and the arc path AP formed by each arc path forming unit 100 , 200 , 300 will be described in detail with reference to the accompanying drawings. .
- the arc path forming units 100 , 200 , and 300 may include a magnet unit having a polarity in the width direction positioned on the left or right side.
- the arc path forming units 100 , 200 , and 300 may include a magnet unit having a polarity in the longitudinal direction, which is positioned on at least one side of the front side and the rear side.
- the rear side may be defined in a direction adjacent to the first surfaces 111 , 211 , and 311
- the front side may be adjacent to the second surfaces 112 , 212 , and 312 .
- the left side may be defined in a direction adjacent to the third surfaces 113 , 213 , and 313
- the right side may be defined in a direction adjacent to the fourth surfaces 114 , 214 , and 314 .
- the arc path forming units 100 , 200 , and 300 include a plurality of magnet units.
- the plurality of magnets form a magnetic field inside the arc path forming units 100 , 200 , 300 in which the fixed contact 22 and the movable contact 43 are accommodated.
- the plurality of magnet parts may form a magnetic field by themselves and between each other.
- the magnetic field formed by the plurality of magnets forms an electromagnetic force together with the current passed through the fixed contact 22 and the movable contact 43 .
- the formed electromagnetic force induces an arc generated when the fixed contact 22 and the movable contact 43 are spaced apart.
- the arc path forming units 100 , 200 , and 300 form an electromagnetic force in a direction away from the center C of the space portions 115 , 215 , 315 . Accordingly, the arc path (A.P) is also formed in a direction away from the center (C) of the space (115, 215, 315).
- each component provided in the DC relay 1 is not damaged by the generated arc. Furthermore, the generated arc can be rapidly discharged to the outside of the arc chamber 21 .
- the arc path forming unit 100 includes a magnet frame 110 , a first magnet unit 120 , a second magnet unit 130 , a third magnet unit 140 , It includes a fourth magnet part 150 , a fifth magnet part 160 , and a sixth magnet part 170 .
- the magnet frame 110 forms a skeleton of the arc path forming unit 100 .
- the first to sixth magnet parts 120 , 130 , 140 , 150 , 160 , and 170 are disposed on the magnet frame 110 .
- the first to sixth magnet parts 120 , 130 , 140 , 150 , 160 , and 170 may be coupled to the magnet frame 110 .
- the magnet frame 110 has a rectangular cross-section formed extending in the longitudinal direction, in the left-right direction in the illustrated embodiment.
- the shape of the magnet frame 110 may be changed according to the shape of the upper frame 11 and the arc chamber 21 .
- the magnet frame 110 includes a first surface 111 , a second surface 112 , a third surface 113 , a fourth surface 114 , and a space portion 115 .
- the first surface 111 , the second surface 112 , the third surface 113 , and the fourth surface 114 form the outer peripheral surface of the magnet frame 110 . That is, the first surface 111 , the second surface 112 , the third surface 113 , and the fourth surface 114 function as a wall of the magnet frame 110 .
- first to sixth magnet parts 120, 130, 140, 150, 160, inside the first surface 111, the second surface 112, the third surface 113 and the fourth surface 114, 170) can be located.
- the first side 111 forms the rear side.
- the second surface 112 forms a front side surface and faces the first surface 111 .
- the third face 113 forms the left face.
- the fourth side 114 forms the right side and faces the third side 113 .
- first surface 111 and the second surface 112 face each other with the space portion 115 interposed therebetween.
- third surface 113 and the fourth surface 114 face each other with the space portion 115 interposed therebetween.
- the first surface 111 is continuous with the third surface 113 and the fourth surface 114 .
- the first surface 111 may be coupled to the third surface 113 and the fourth surface 114 at a predetermined angle.
- the predetermined angle may be a right angle.
- the second surface 112 is continuous with the third surface 113 and the fourth surface 114 .
- the second surface 112 may be coupled to the third surface 113 and the fourth surface 114 at a predetermined angle.
- the predetermined angle may be a right angle.
- Each edge at which the first surface 111 to the fourth surface 114 are connected to each other may be chamfered.
- first to sixth magnet parts 120 , 130 , 140 , 150 , 160 , 170 may be coupled to the respective surfaces 111 , 112 , 113 , and 114 .
- a fastening member (not shown) may be provided for coupling the respective surfaces 111 , 112 , 113 , and 114 with the first to sixth magnet parts 120 , 130 , 140 , 150 , 160 , and 170 .
- an arc discharge hole may be formed through at least one of the first surface 111 , the second surface 112 , the third surface 113 , and the fourth surface 114 . .
- the arc discharge hole may function as a passage through which the arc generated in the space 115 is discharged.
- a space surrounded by the first surface 111 to the fourth surface 114 may be defined as the space portion 115 .
- the fixed contact 22 and the movable contact 43 are accommodated in the space portion 115 .
- the arc chamber 21 is accommodated in the space 115 .
- the movable contact 43 may be moved in a direction toward the fixed contact 22 (ie, a downward direction) or a direction away from the fixed contact 22 (ie, an upward direction).
- a path A.P of the arc generated in the arc chamber 21 is formed in the space portion 115 . This is achieved by the magnetic field formed by the first to sixth magnet parts 120 , 130 , 140 , 150 , 160 and 170 .
- a central portion of the space portion 115 may be defined as a central portion (C).
- a straight line distance from each corner where the first to fourth surfaces 111 , 112 , 113 , and 114 are connected to each other to the center C may be formed to be the same.
- the central portion C is positioned between the first fixed contact 22a and the second fixed contact 22b.
- the central portion of the movable contact portion 40 is positioned vertically below the central portion (C). That is, the central portion of the housing 41 , the cover 42 , the movable contact 43 , the shaft 44 , and the elastic part 45 is positioned vertically below the central portion (C).
- the arc path forming unit 100 includes first to sixth magnet units 120 , 130 , 140 , 150 , 160 , and 170 .
- the first to sixth magnet parts 120 , 130 , 140 , 150 , 160 , and 170 may be provided in any shape capable of forming a magnetic field inside the space part 115 by being magnetized.
- the first to sixth magnet parts 120 , 130 , 140 , 150 , 160 , and 170 may be positioned adjacent to the first to fourth surfaces 111 , 112 , 113 and 114 , respectively.
- the first magnet portion 120 is positioned adjacent to the third surface 113 .
- the second magnet part 130 is positioned adjacent to the fourth surface 114 .
- the first magnet part 120 and the second magnet part 130 are disposed to face each other with the space part 115 interposed therebetween.
- the third magnet unit 140 and the fourth magnet unit 150 are positioned adjacent to the first surface 111 .
- the third magnet unit 140 is positioned to be biased toward the third surface 113 .
- the fourth magnet part 150 is positioned to be biased toward the fourth surface 114 .
- the third magnet unit 140 and the fourth magnet unit 150 are arranged in parallel with each other along the extending direction thereof. In an embodiment, the third magnet unit 140 and the fourth magnet unit 150 may be in contact with each other.
- the fifth magnet part 160 and the sixth magnet part 170 are positioned on the second surface 112 .
- the fifth magnet unit 160 is positioned to be biased toward the third surface 113 .
- the sixth magnet unit 170 is positioned to be biased toward the fourth surface 114 .
- the fifth magnet part 160 and the sixth magnet part 170 are arranged in parallel with each other along the extending direction thereof. In an embodiment, the fifth magnet unit 160 and the sixth magnet unit 170 may be in contact with each other.
- the third magnet unit 140 and the fifth magnet unit 160 are disposed to face each other with the space unit 115 or the first fixed contact 22a interposed therebetween.
- the third magnet unit 140 , the first fixed contactor 22a , and the fifth magnet unit 160 may be disposed to overlap in the front-rear direction.
- the fourth magnet part 150 and the sixth magnet part 170 are disposed to face each other with the space part 115 or the second fixed contactor 22b interposed therebetween.
- the fourth magnet unit 150 , the second fixed contactor 22b , and the sixth magnet unit 170 may be disposed to overlap in the front-rear direction.
- the first magnet part 120 and the second magnet part 130 are formed to extend in one direction. In the illustrated embodiment, the first magnet part 120 and the second magnet part 130 are formed to extend in the front-rear direction.
- the third to sixth magnet parts 140 , 150 , 160 , and 170 are formed to extend in other directions. In the illustrated embodiment, the third to sixth magnet parts 140 , 150 , 160 , 170 are formed to extend in the left and right directions.
- the first to sixth magnet parts 120 , 130 , 140 , 150 , 160 , and 170 each include a plurality of surfaces.
- the first magnet part 120 has a first opposing surface 121 facing the space 115 or the fixed contact 22 and a first opposite surface facing the space 115 or the fixed contact 22 . (122).
- the second magnet unit 130 has a second opposing surface 131 facing the space 115 or the fixed contact 22 and a second opposing surface 132 facing the space 115 or the fixed contact 22 .
- the third magnet unit 140 includes a third opposing surface 141 facing the fourth magnet unit 150 and a third opposing surface 142 facing the fourth magnet unit 150 .
- the fourth magnet unit 150 includes a fourth opposing surface 151 facing the third magnet unit 140 and a fourth opposing surface 152 facing the third magnet unit 140 .
- the fifth magnet unit 160 includes a fifth opposing surface 161 facing the sixth magnet unit 170 and a fifth opposing surface 162 facing the sixth magnet unit 170 .
- the sixth magnet unit 170 includes a sixth opposing surface 171 facing the fifth magnet unit 160 and a sixth opposing surface 172 facing the fifth magnet unit 160 .
- Each surface of the first to sixth magnet units 120 , 130 , 140 , 150 , 160 , and 170 may be magnetized according to a predetermined rule.
- first and second opposing surfaces 121 and 131 and the third to sixth opposing surfaces 142 , 152 , 162 , and 172 are magnetized with the same polarity.
- first and second opposing surfaces 122 and 132 and the third to sixth opposing surfaces 141 , 151 , 161 and 171 are magnetized with the same polarity.
- the first and second opposing surfaces 121 and 131 and the third to sixth opposing surfaces 142 , 152 , 162 and 172 are magnetized to the N pole.
- the first and second opposing surfaces 122 and 132 and the third to sixth opposing surfaces 141 , 151 , 161 and 171 are magnetized to the S pole.
- a magnetic field in a direction to repel each other is formed between the first magnet part 120 and the second magnet part 130 .
- a magnetic field is formed between the first magnet part 120 and the fifth and sixth magnet parts 160 and 170 in a direction from the first opposing surface 121 toward the fifth and sixth opposing faces 161 and 171 . .
- a magnetic field in a direction from the second opposing surface 131 toward the third and fourth opposing faces 141 and 151 is generated. is formed
- a magnetic field is formed between the second magnet unit 130 and the fifth and sixth magnet units 160 and 170 in a direction from the second opposing surface 131 toward the fifth and sixth opposing faces 161 and 171 . .
- the direction of the current is a direction from the second fixed contactor 22b to the first fixed contactor 22a through the movable contactor 43 .
- the direction of the current is a direction from the first fixed contactor 22a to the movable contactor 43 and out to the second fixed contactor 22b.
- the first to sixth magnet parts 120, 130, 140, 150, 160, 170 when the polarity of each surface of the first to sixth magnet parts 120, 130, 140, 150, 160, 170 is changed, the first to sixth magnet parts 120, 130, 140, 150 , 160, 170) the direction of the magnetic field formed is reversed. Accordingly, the path A.P of the generated electromagnetic force and arc is also formed in the reverse direction.
- the path A.P of the electromagnetic force and arc in the vicinity of the first fixed contact 22a is formed toward the front left.
- the path A.P of the electromagnetic force and arc in the vicinity of the second fixed contactor 22b is formed toward the front right.
- the path A.P of the electromagnetic force and arc in the vicinity of the first fixed contact 22a is formed toward the rear left.
- the path A.P of the electromagnetic force and arc in the vicinity of the second fixed contactor 22b is formed toward the rear right side.
- the path AP of the electromagnetic force and arc can be formed in a direction away from the center C.
- the arc path forming unit 200 includes a magnet frame 210 , a first magnet unit 220 , a second magnet unit 230 , and a third magnet unit ( 240 ) and a fourth magnet part 250 .
- the magnet frame 210 according to the present embodiment has the same structure and function as the magnet frame 110 according to the above-described embodiment. However, there is a difference in the arrangement method of the first to fourth magnet parts 220 , 230 , 240 , 250 disposed on the magnet frame 210 according to the present embodiment.
- the description of the magnet frame 210 will be replaced with the description of the magnet frame 110 according to the above-described embodiment.
- the first to fourth magnet parts 220 , 230 , 240 , and 250 may be provided in any shape capable of forming a magnetic field by being magnetized.
- the first to fourth magnet parts 220 , 230 , 240 , and 250 may be positioned adjacent to the first to fourth surfaces 211 , 212 , 213 and 214 , respectively.
- the first magnet portion 220 is positioned adjacent to the third surface 213 .
- the second magnet portion 230 is positioned adjacent to the fourth surface 214 .
- the first magnet part 220 and the second magnet part 230 are disposed to face each other with the space part 215 interposed therebetween.
- the third magnet portion 240 is positioned adjacent to the first surface 211 .
- the third magnet unit 240 is positioned to be biased toward any one of the third surface 213 and the fourth surface 214 .
- the third magnet part 240 is disposed to overlap with any one of the first fixed contactor 22a and the second fixed contactor 22b in the front-rear direction.
- the third magnet part 240 is positioned to be biased toward the fourth surface 214 .
- the third magnet part 240 overlaps the second fixed contactor 22b in the front-rear direction.
- the third magnet part 240 is positioned adjacent to the third surface 213 .
- the third magnet portion 240 overlaps the first fixed contactor 22a in the front-rear direction.
- the fourth magnet portion 250 is positioned adjacent to the second surface 212 .
- the fourth magnet unit 250 is positioned to be biased toward the other of the third surface 213 and the fourth surface 214 .
- the fourth magnet part 250 is disposed to overlap the other one of the first fixed contactor 22a and the second fixed contactor 22b in the front-rear direction.
- the fourth magnet part 250 is positioned to be biased toward the third surface 213 . In the above embodiment, the fourth magnet part 250 overlaps the first fixed contactor 22a in the front-rear direction.
- the fourth magnet part 250 is positioned to be biased toward the fourth surface 214 .
- the fourth magnet part 250 overlaps the second fixed contactor 22b in the front-rear direction.
- the first magnet part 220 and the second magnet part 230 are formed to extend in one direction. In the illustrated embodiment, the first magnet part 220 and the second magnet part 230 are formed to extend in the front-rear direction.
- the third magnet part 240 and the fourth magnet part 250 are formed to extend in the other direction. In the illustrated embodiment, the third magnet part 240 and the fourth magnet part 250 are formed to extend in the left and right directions.
- the first to fourth magnet units 220 , 230 , 240 , and 250 each include a plurality of surfaces.
- the first magnet part 220 has a first opposing surface 221 facing the space 215 or the fixed contact 22 and a first opposite surface opposite to the space 215 or the fixed contact 22 . (222).
- the second magnet portion 230 includes a second opposing surface 231 facing the space 215 or fixed contact 22 and a second opposing surface 232 facing the space 215 or fixed contact 22 .
- the third magnet unit 240 includes a third opposing face 241 opposite to the one of the faces that is located biased and a third opposing face 242 facing the one face.
- the fourth magnet part 250 includes a fourth opposing face 251 opposite to the other face, which is located biasedly, and a fourth opposing face 252 facing the other face.
- Each surface of the first to fourth magnet units 220 , 230 , 240 , and 250 may be magnetized according to a predetermined rule.
- first and second opposing surfaces 221 and 231 and the third and fourth opposing surfaces 242 and 252 are magnetized with the same polarity.
- first and second opposing surfaces 222 and 232 and the third to fourth opposing surfaces 241 and 251 are magnetized with the same polarity.
- the first and second opposing surfaces 221 and 231 and the third and fourth opposing surfaces 242 and 252 are N-pole magnetized.
- the first and second opposing surfaces 222 and 232 and the third and fourth opposing surfaces 241 and 251 are magnetized to the S pole.
- a magnetic field in a direction to repel each other is formed between the first magnet part 220 and the second magnet part 230 .
- a magnetic field in a direction from the first opposing surface 221 to the third and fourth opposing surfaces 241 and 251 is formed between the first magnet unit 220 and the third and fourth magnet units 240 and 250 .
- the direction of the current is the direction from the second fixed contact 22b to the movable contact 43 through the first fixed contactor 22a. .
- the direction of the current is the direction from the first fixed contact 22a through the movable contact 43 to the second fixed contact 22b. .
- the first to fourth magnet parts 220 , 230 , 240 , 250 are formed The direction of the magnetic field is reversed. Accordingly, the path A.P of the generated electromagnetic force and arc is also formed in the reverse direction.
- the path A.P of the electromagnetic force and arc in the vicinity of the first fixed contact 22a is formed toward the left in the front.
- the path A.P of the electromagnetic force and arc in the vicinity of the second fixed contactor 22b is formed toward the front right.
- the path A.P of the electromagnetic force and arc in the vicinity of the first fixed contactor 22a is formed toward the rear left.
- the path A.P of the electromagnetic force and arc in the vicinity of the second fixed contactor 22b is formed toward the rear right side.
- the arc path forming unit 200 regardless of the polarity of the first to fourth magnet units 220 , 230 , 240 , 250 or the direction of the current flowing through the DC relay 1 ,
- the path AP of the electromagnetic force and arc may be formed in a direction away from the center C.
- the arc path forming unit 300 includes a magnet frame 310 , a first magnet unit 320 , a second magnet unit 330 , and a third magnet unit ( 340 ), a fourth magnet part 350 , and a fifth magnet part 360 .
- the magnet frame 310 according to this embodiment has the same structure and function as the magnet frame 110 according to the above-described embodiment. However, there is a difference in the arrangement method of the first to fifth magnet units 320 , 330 , 340 , 350 and 360 arranged on the magnet frame 310 according to the present embodiment.
- the description of the magnet frame 310 will be replaced with the description of the magnet frame 110 according to the above-described embodiment.
- the first to fifth magnet parts 320 , 330 , 340 , 350 , and 360 may be provided in any shape capable of forming a magnetic field by being magnetized.
- the first to fifth magnet parts 320 , 330 , 340 , 350 , and 360 may be positioned adjacent to the first to fourth surfaces 311 , 312 , 313 , and 314 , respectively.
- the first magnet portion 320 is positioned adjacent to the third surface 313 .
- the second magnet portion 330 is positioned adjacent to the fourth surface 314 .
- the first magnet part 320 and the second magnet part 330 are disposed to face each other with the space part 315 interposed therebetween.
- the third magnet part 340 is positioned adjacent to any one of the first surface 311 and the second surface 312 . 11 and 12 , the third magnet part 340 is positioned adjacent to the first surface 311 . 13 and 14 , the third magnet portion 340 is positioned adjacent to the second surface 312 .
- the third magnet unit 340 is positioned to be biased toward any one of the third surface 313 and the fourth surface 314 .
- the third magnet unit 340 is disposed to overlap with any one of the first fixed contactor 22a and the second fixed contactor 22b in the front-rear direction.
- the third magnet part 340 is positioned to be biased toward the third surface 313 .
- the third magnet part 340 is disposed to overlap the first fixed contactor 22a in the front-rear direction.
- the third magnet part 340 is positioned to be biased toward the fourth surface 314 .
- the third magnet part 340 is disposed to overlap the second fixed contactor 22b in the front-rear direction.
- the fourth magnet part 350 and the fifth magnet part 360 are positioned adjacent to the other one of the first surface 311 and the second surface 312 . 11 and 12 , the fourth magnet part 350 and the fifth magnet part 360 are positioned adjacent to the second surface 312 . 13 and 14 , the fourth magnet part 350 and the fifth magnet part 360 are positioned adjacent to the first surface 311 .
- the fourth magnet part 350 and the fifth magnet part 360 are disposed to overlap the first fixed contactor 22a and the second fixed contactor 22b in the front-rear direction, respectively.
- any one of the fourth magnet part 350 and the fifth magnet part 360 is disposed to overlap the third magnet part 340 in the front-rear direction.
- the fourth magnet part 350 is disposed to overlap the third magnet part 340 in the front-rear direction.
- the fifth magnet part 360 is disposed to overlap the third magnet part 340 in the front-rear direction.
- the fourth magnet part 350 and the fifth magnet part 360 are arranged in parallel with each other along the extending direction thereof. In an embodiment, the fourth magnet part 350 and the fifth magnet part 360 may be in contact with each other.
- the first magnet part 320 and the second magnet part 330 are formed to extend in one direction. In the illustrated embodiment, the first magnet part 320 and the second magnet part 330 are formed to extend in the front-rear direction.
- the third to fifth magnet parts 340 , 350 , 360 are formed to extend in other directions. In the illustrated embodiment, the third to fifth magnet parts 340 , 350 , 360 are formed to extend in the left and right directions.
- the first to fifth magnet parts 320 , 330 , 340 , 350 , and 360 each include a plurality of surfaces.
- the first magnet portion 320 has a first opposite surface 321 facing the space 315 or the fixed contact 22 and a first opposite surface opposite to the space 315 or the fixed contact 22 . (322).
- the second magnet portion 330 has a second opposing surface 331 facing the space 315 or the fixed contact 22 and a second opposing surface 332 facing the space 315 or the fixed contact 22 .
- the third magnet unit 340 includes a third opposing face 341 opposite to the one of the faces that is biased and a third opposing face 342 facing the one face.
- the fourth magnet unit 350 includes a fourth opposing surface 351 facing the fifth magnet unit 360 and a fourth opposing surface 352 facing the fifth magnet unit 360 .
- the fifth magnet unit 360 includes a fifth opposing surface 361 facing the fourth magnet unit 350 and a fifth opposing surface 362 facing the fourth magnet unit 350 .
- Each surface of the first to fifth magnet parts 320 , 330 , 340 , 350 , and 360 may be magnetized according to a predetermined rule.
- first and second opposing surfaces 321 and 331 and the third to fifth opposing surfaces 342 , 352 and 362 are magnetized to have the same polarity.
- first and second opposing surfaces 322 and 332 and the third to fifth opposing surfaces 341 , 351 and 361 are magnetized with the same polarity.
- the first and second opposing surfaces 321 and 331 and the third to fifth opposing surfaces 342 , 352 and 362 are magnetized to the N-pole.
- the first and second opposing surfaces 322 and 332 and the third to fifth opposing surfaces 341 , 351 and 361 are magnetized to the S pole.
- a magnetic field is formed between the first to fifth magnet units 320 , 330 , 340 , 350 , and 360 according to polarities.
- a magnetic field in a direction to repel each other is formed between the first magnet part 320 and the second magnet part 330 .
- a magnetic field in a direction from the first facing surface 321 to the third facing surface 341 is formed between the first magnet unit 320 and the third magnet unit 340 .
- a magnetic field is formed between the first magnet part 320 and the fourth and fifth magnet parts 350 and 360 in a direction from the first opposed surface 321 to the fourth and fifth opposed surfaces 351 and 361 . .
- a magnetic field in a direction from the second facing surface 331 to the third facing surface 341 is formed between the second magnet unit 230 and the third magnet unit 340 .
- a magnetic field is formed between the second magnet part 330 and the fourth and fifth magnet parts 350 and 360 in a direction from the second opposing surface 331 toward the fourth and fifth opposing surfaces 351 and 361 . .
- the direction of the current is from the second fixed contactor 22b to the movable contactor 43 ) through the direction of coming out to the first fixed contact (22a).
- the direction of the current is from the first fixed contactor 22a to the movable contactor 43 ) through the second fixed contactor 22b.
- the first to fifth magnet parts 320, 330, 340, 350, and 360 when the polarity of each surface of the first to fifth magnet parts 320, 330, 340, 350, and 360 is changed, the first to fifth magnet parts 320, 330, 340, 350, 360 ), the direction of the magnetic field is reversed. Accordingly, the path A.P of the generated electromagnetic force and arc is also formed in the reverse direction.
- the electromagnetic force and arc path ( AP) is formed toward the left of the anterior chamber.
- the path A.P of the electromagnetic force and arc in the vicinity of the second fixed contactor 22b is formed toward the front right.
- the path of the electromagnetic force and arc in the vicinity of the first fixed contactor 22a (AP) is formed toward the left of the rear.
- the path A.P of the electromagnetic force and arc in the vicinity of the second fixed contactor 22b is formed toward the rear right side.
- the arc path forming unit 300 is independent of the polarity of the first to fifth magnet units 320 , 330 , 340 , 350 , 360 or the direction of the current flowing through the DC relay 1 .
- the path AP of the electromagnetic force and arc may be formed in a direction away from the center C.
- the DC relay 1 includes an arc path forming unit 500 .
- the arc path forming unit 500 includes a magnet frame 510 surrounding the fixed contact 22 and the movable contact 43 .
- the arc path forming unit 500 includes a plurality of magnet units 521 , 522 , 523 , 524 , 525 , and 526 forming a magnetic field in the magnet frame 510 .
- the magnetic field formed by the plurality of magnet parts 521 , 522 , 523 , 524 , 525 , and 526 forms an electromagnetic force that induces an arc generated by the fixed contact 22 and the movable contact 43 being spaced apart.
- the arc path forming unit 500 includes a magnet frame 510 and a magnet unit 520 .
- the magnet frame 510 forms a skeleton of the arc path forming unit 500 .
- a magnet unit 520 is disposed on the magnet frame 510 .
- the magnet unit 520 may be coupled to the magnet frame 510 .
- the magnet frame 510 has a rectangular cross section extending in the longitudinal direction, in the illustrated embodiment, in the left and right directions.
- the shape of the magnet frame 510 may be changed according to the shapes of the upper frame 11 and the arc chamber 21 .
- the magnet frame 510 includes a first surface 511 , a second surface 512 , a third surface 513 , a fourth surface 514 , and a space portion 515 .
- the first surface 511 , the second surface 512 , the third surface 513 , and the fourth surface 514 form an outer peripheral surface of the magnet frame 510 . That is, the first surface 511 , the second surface 512 , the third surface 513 , and the fourth surface 514 function as a wall of the magnet frame 510 .
- the magnet part 520 may be positioned inside the first surface 511 , the second surface 512 , the third surface 513 , and the fourth surface 514 .
- the first side 511 forms the back side.
- the second face 512 forms a front side face and is opposite to the first face 511 .
- the third face 513 forms the left face.
- the fourth side 514 forms the right side and is opposite the third side 513 .
- first surface 511 and the second surface 512 face each other with the space portion 515 therebetween.
- third surface 513 and the fourth surface 514 face each other with the space portion 515 therebetween.
- the first surface 511 is continuous with the third surface 513 and the fourth surface 514 .
- the first surface 511 may be coupled to the third surface 513 and the fourth surface 514 at a predetermined angle.
- the predetermined angle may be a right angle.
- the second face 512 is continuous with the third face 513 and the fourth face 514 .
- the second surface 512 may be coupled to the third surface 513 and the fourth surface 514 at a predetermined angle.
- the predetermined angle may be a right angle.
- Each edge at which the first surface 511 to the fourth surface 514 are connected to each other may be chamfered.
- the first magnet part 521 may be coupled to the inner side of the first surface 511 , that is, one side of the first surface 511 facing the second surface 512 .
- the second magnet part 522 may be coupled to the inner side of the second surface 512 , that is, one side of the second surface 512 facing the first surface 511 .
- the third magnet part 523 and the fourth magnet part 524 may be coupled to the inner side of the third surface 513 , that is, one side of the third surface 513 facing the fourth surface 514 .
- the fifth magnet part 525 and the sixth magnet part 526 may be coupled to one side of the fourth surface 514 facing the inner side of the fourth surface 514 , that is, the third surface 513 . .
- a fastening member (not shown) may be provided for coupling the respective surfaces 511 , 512 , 513 , and 514 to the magnet unit 520 .
- an arc discharge hole may be formed through at least one of the first surface 511 , the second surface 512 , the third surface 513 , and the fourth surface 514 .
- the arc discharge hole may function as a passage through which the arc generated in the space 516 is discharged.
- a space surrounded by the first surface 511 to the fourth surface 514 may be defined as a space portion 515 .
- the fixed contact 22 and the movable contact 43 are accommodated in the space 515 .
- the arc chamber 21 is accommodated in the space 515 .
- the movable contact 43 may be moved in a direction toward the fixed contact 22 (ie, a downward direction) or a direction away from the fixed contact 22 (ie, an upward direction).
- a path A. P of the arc generated in the arc chamber 21 is formed in the space 515 . This is achieved by the magnetic field formed by the magnet portion 520 .
- a central portion of the space portion 515 may be defined as a central portion (C).
- the straight-line distance from each corner where the first to fourth surfaces 511 , 512 , 513 , and 514 are connected to each other to the center C may be formed to be the same.
- the central portion C is positioned between the first fixed contact 22a and the second fixed contact 22b.
- the central portion of the movable contact portion 40 is positioned vertically below the central portion (C). That is, the central portion of the housing 41 , the cover 42 , the movable contact 43 , the shaft 44 , and the elastic part 45 is positioned vertically below the central portion (C).
- the arc path forming unit 500 includes a magnet unit 520 .
- the magnet part 520 forms a magnetic field inside the space part 515 .
- the magnetic field formed by the magnet unit 520 generates electromagnetic force together with the current flowing along the fixed contact 22 and the movable contact 43 . Accordingly, the path A. P of the arc may be formed in the direction of the electromagnetic force.
- the magnet units 520 may form a magnetic field between adjacent magnet units 520 , or each magnet unit 520 may form a magnetic field by itself.
- the magnet unit 520 may have magnetism by itself or may be provided in any shape capable of being magnetized by application of a current or the like. In an embodiment, the magnet unit 520 may be provided with a permanent magnet or an electromagnet.
- the magnet part 520 is coupled to the magnet frame 510 .
- a fastening member (not shown) may be provided for coupling the magnet unit 520 and the magnet frame 510 .
- the magnet unit 520 extends in one direction and has a rectangular parallelepiped shape having a rectangular cross section.
- the magnet unit 520 may be provided in any shape capable of forming a magnetic field.
- a plurality of magnet units 520 may be provided. In the illustrated embodiment, there are six magnet units 520 , but the number may be changed.
- the magnet unit 520 includes a first magnet unit 521 , a second magnet unit 522 , a third magnet unit 523 , a fourth magnet unit 524 , and a fifth magnet unit 525 . ) and a sixth magnet part 526 .
- the first magnet part 521 forms a magnetic field together with the second to sixth magnet parts 522 , 523 , 524 , 525 , and 526 .
- the first magnet unit 521 may form a magnetic field by itself.
- the first magnet unit 521 is located on the inside of the first surface 511, the central portion in the left-right direction.
- the first magnet part 521 is disposed to face the second magnet part 522 . Specifically, the first magnet part 521 faces the second magnet part 522 in the front-rear direction with the space part 515 interposed therebetween.
- an imaginary straight line connecting the center of the longitudinal direction (ie, left and right direction) of the first magnet part 521 and the center of the second magnet part 522 in the longitudinal direction (ie, left and right direction) is, It may pass through the center (C) of the space portion (515).
- the first magnet part 521 includes a first inner surface 521a and a first outer surface 521b.
- the first inner surface 521a is defined as one surface of the first magnet portion 521 facing the space portion 515 .
- the first inner surface 521a may be defined as a side surface of the first magnet part 521 facing the second magnet part 522 .
- the first outer surface 521b is defined as the other surface of the first magnet part 521 facing the first surface 511 .
- the first outer surface 521b may be defined as the other surface of the first magnet part 521 facing the first inner surface 521a.
- the first inner surface 521a and the first outer surface 521b are magnetized with different polarities. That is, the first inner surface 521a may be magnetized to one of the N pole and the S pole, and the first outer surface 521b may be magnetized to the other of the N pole and the S pole.
- a magnetic field propagating from one of the first inner surface 521a and the first outer surface 521b to the other is formed by the first magnet unit 521 itself.
- the polarity of the first inner surface 521a may be the same as the polarity of the second inner surface 522a of the second magnet part 522 . Accordingly, a magnetic field in a direction to repel each other is formed between the first magnet part 521 and the second magnet part 522 .
- the first inner surface 521a is magnetized to the N pole in the same manner as the second inner surface 522a.
- the magnetic field toward the second to sixth magnet parts 522 , 523 , 524 , 525 , 526 is radiated from the first inner surface 521a .
- the first inner surface 521a is magnetized to the S pole in the same manner as the second inner surface 522a.
- the magnetic field emitted from the third to sixth magnet parts 523 , 524 , 525 , 526 converges on the first inner surface 521a.
- the polarity of the first inner surface 521a may be different from each of the opposite surfaces 523a, 524a, 525a, and 526a of the third to sixth magnet parts 523 , 524 , 525 , and 526 .
- the polarity of the first inner surface 521a may be the same as the opposite surfaces 523b, 524b, 525b, and 526b of the third to sixth magnet parts 523 , 524 , 525 , and 526 .
- a magnetic field in a mutually attractive direction is formed between the first inner surface 521a and each of the opposite surfaces 523a, 524a, 525a, and 526a. That is, a magnetic field is formed from any one of the first inner surface 521a and each of the opposite surfaces 523a, 524a, 525a, and 526a toward the other.
- a magnetic field in a direction to repel each other is formed between the first inner surface 521a and the opposite surfaces 523b, 524b, 525b, and 526b.
- the second magnet part 522 forms a magnetic field together with the first, third to sixth magnet parts 521 , 523 , 524 , 525 , and 526 .
- the second magnet unit 522 may also form a magnetic field by itself.
- the second magnet unit 522 is located on the inside of the second surface 512, in the central portion in the left-right direction.
- the second magnet part 522 is disposed to face the first magnet part 521 . Specifically, the second magnet part 522 faces the first magnet part 521 in the front-rear direction with the space part 515 interposed therebetween.
- an imaginary straight line connecting the center of the longitudinal direction (ie, the left and right direction) of the second magnet part 522 and the center of the first magnet part 521 in the longitudinal direction (ie, the left and right direction) is, It may pass through the center (C) of the space portion (515).
- the second magnet portion 522 includes a second inner surface 522a and a second outer surface 522b.
- the second inner surface 522a is defined as a side surface of the second magnet portion 522 facing the space portion 515 .
- the second inner surface 522a may be defined as a side surface of the second magnet part 522 facing the first magnet part 521 .
- the second outer surface 522b is defined as the other surface of the second magnet part 522 facing the second surface 512 .
- the second outer surface 522b may be defined as the other surface of the second magnet part 522 facing the second inner surface 522a.
- the second inner surface 522a and the second outer surface 522b are magnetized with different polarities. That is, the second inner surface 522a may be magnetized to one of the N pole and the S pole, and the second outer surface 522b may be magnetized to the other of the N pole and the S pole.
- a magnetic field propagating from one of the second inner surface 522a and the second outer surface 522b to the other is formed by the second magnet unit 522 itself.
- the polarity of the second inner surface 522a may be the same as the polarity of the first inner surface 521a of the first magnet part 521 . Accordingly, a magnetic field in a direction to repel each other is formed between the second magnet part 522 and the first magnet part 521 .
- the second inner surface 522a is magnetized to the N pole in the same manner as the first inner surface 521a.
- a magnetic field in a direction toward the first and third to sixth magnet parts 521 , 523 , 524 , 525 , 526 is generated from the second inner surface 522a .
- the second inner surface 522a is magnetized to the S pole in the same manner as the first inner surface 521a.
- the magnetic field emitted from the third to sixth magnet parts 523 , 524 , 525 , 526 is converged on the second inner surface 522a .
- the polarity of the second inner surface 521a may be different from each of the opposing surfaces 523a, 524a, 525a, and 526a of the third to sixth magnet parts 523, 524, 525, and 526.
- the polarity of the second inner surface 522a may be the same as the opposite surfaces 523b, 524b, 525b, and 526b of the third to sixth magnet parts 523 , 524 , 525 , and 526 .
- a magnetic field in a mutually pulling direction is formed between the second inner surface 522a and each of the opposite surfaces 523a, 524a, 525a, and 526a. That is, a magnetic field is formed from any one of the second inner surface 522a and each of the opposing surfaces 523a, 524a, 525a, and 526a toward the other.
- a magnetic field in a direction to repel each other is formed between the second inner surface 522a and the opposite surfaces 523b, 524b, 525b, and 526b.
- the positional relationship between the first magnet part 521 and the second magnet part 522 may be described using the positional relationship with the fixed contactor 22 .
- the fixed contacts 22 are formed to extend in the longitudinal direction, in the illustrated embodiment, in the left and right directions.
- the fixed contact 22 includes a first fixed contact 22a located on the left and a second fixed contact 22b located on the right side.
- An imaginary line connecting the first fixed contactor 22a and the second fixed contactor 22b may be understood as a horizontal line in a left-right direction.
- an imaginary line connecting the first magnet part 521 and the second magnet part 522 may intersect the horizontal line.
- the distance between the first magnet part 521 and the crossing point may be the same as the distance between the second magnet part 522 and the crossing point.
- first magnet part 521 and the second magnet part 522 may be arranged so as to be point-symmetric with respect to the central part (C).
- the third magnet part 523 forms a magnetic field together with the first magnet part 521 , the second magnet part 522 , and the fourth magnet part 524 .
- the third magnet unit 523 may also form a magnetic field by itself.
- the third magnet portion 523 is located inside the third surface 513 .
- the third magnet portion 523 is located inside the third surface 513, biased toward the first surface (511). That is, the third magnet portion 523 is located closer to the first surface 511 than the second surface 512 .
- the third magnet part 523 is disposed in parallel with the fourth magnet part 524 . Specifically, the third magnet part 523 is positioned between the first magnet part 521 and the fourth magnet part 524 . In other words, the third magnet portion 523 is positioned between the first surface 511 and the fourth magnet portion 524 . In the illustrated embodiment, the third magnet part 523 is located on the rear side of the fourth magnet part 524 .
- the third magnet part 523 is spaced apart from the fourth magnet part 524 .
- the third magnet part 523 is disposed to face the fourth magnet part 524 in an extension direction thereof, and in the front-rear direction in the illustrated embodiment.
- the third magnet portion 523 may be in contact with the fourth magnet portion 524 .
- the third magnet part 523 and the fourth magnet part 524 may be disposed to face each other in the extending direction thereof, that is, in the front-rear direction in the illustrated embodiment.
- the third magnet part 523 is disposed to face the fifth magnet part 525 .
- the third magnet unit 523 is disposed to face the fifth magnet unit 525 in the horizontal direction with the space unit 515 interposed therebetween, and in the left and right direction in the illustrated embodiment.
- the third magnet part 523 extends in one direction, in a front-rear direction in the illustrated embodiment. That is, the extension direction of the third magnet part 523 forms a predetermined angle with the extension direction of the first magnet part 521 or the second magnet part 522 . In an embodiment, the third magnet part 523 may extend perpendicular to the first magnet part 521 or the second magnet part 522 .
- an imaginary straight line connecting the longitudinal center of the third magnet part 523 and the longitudinal center of the sixth magnet part 526 passes through the central part C of the space part 515 .
- the third magnet portion 523 includes a third opposing face 523a and a third opposing face 523b.
- the third opposing surface 523a is defined as a side surface of the third magnet portion 523 facing the fourth magnet portion 524 .
- the third opposing surface 523a may be defined as a side surface of the third magnet part 523 facing the second surface 512 .
- the third opposite surface 523b is defined as the other surface of the third magnet part 523 opposite to the fourth magnet part 524 .
- the third opposite surface 523b may be defined as the other surface of the third magnet part 523 facing the first surface 511 .
- the third opposite surface 523a and the third opposite surface 523b are magnetized with different polarities. That is, the third opposite surface 523a may be magnetized to one of the N pole and the S pole, and the third opposite surface 523b may be magnetized to the other of the N pole and the S pole.
- a magnetic field propagating from any one of the third opposing surface 523a and the third opposing surface 523b to the other is formed by the third magnet unit 523 itself.
- the polarity of the third opposing surface 523a may be the same as the polarity of the fourth opposing surface 524a of the fourth magnet part 524 . Accordingly, a magnetic field in a direction to repel each other is formed between the third magnet part 523 and the fourth magnet part 524 .
- the polarity of the third opposing surface 523a may be different from the polarity of the first inner surface 521a of the first magnet part 521 . Accordingly, a magnetic field propagating from one to the other is formed between the third magnet part 523 and the first magnet part 521 .
- the polarity of the third opposing surface 523a may be different from the polarity of the second inner surface 522a of the second magnet part 522 . Accordingly, a magnetic field propagating from one to the other is formed between the third magnet part 523 and the second magnet part 522 .
- the third opposing surface 523a may be positioned between the first surface 511 and an imaginary straight line connecting each of the fixed contacts 220a and 220b. That is, the third opposing surface 523a may be positioned to be biased toward the first surface 511 based on an imaginary straight line passing through each of the fixed contacts 220a and 220b.
- the fourth magnet part 524 forms a magnetic field together with the first magnet part 521 , the second magnet part 522 , and the third magnet part 523 .
- the third magnet unit 523 may also form a magnetic field by itself.
- the fourth magnet portion 524 is located on the inside of the third surface 513 .
- the fourth magnet part 524 is located inside the third surface 513 , biased toward the second surface 512 . That is, the fourth magnet part 524 is located closer to the second surface 512 than the first surface 511 .
- the fourth magnet part 524 is disposed in parallel with the third magnet part 523 . Specifically, the fourth magnet part 524 is positioned between the third magnet part 523 and the second magnet part 522 . In other words, the fourth magnet portion 524 is positioned between the third magnet portion 523 and the second surface 512 . In the illustrated embodiment, the fourth magnet part 524 is located on the front side of the third magnet part 523 .
- the fourth magnet part 524 is spaced apart from the third magnet part 523 .
- the fourth magnet part 524 is disposed to face the third magnet part 523 and its extension direction, in the illustrated embodiment, in the front-rear direction.
- the fourth magnet portion 524 may be in contact with the third magnet portion 523 .
- the fourth magnet unit 524 and the third magnet unit 523 may be disposed to face each other in the extending direction thereof, that is, in the front-rear direction in the illustrated embodiment.
- the fourth magnet part 524 is disposed to face the sixth magnet part 526 . Specifically, the fourth magnet part 524 is disposed to face the sixth magnet part 526 in the horizontal direction with the space part 515 interposed therebetween, in the left-right direction in the illustrated embodiment.
- the fourth magnet unit 524 extends in one direction, in the illustrated embodiment, in the front-rear direction. That is, the extension direction of the fourth magnet part 524 forms a predetermined angle with the extension direction of the first magnet part 521 or the second magnet part 522 . In an embodiment, the fourth magnet part 524 may extend perpendicular to the first magnet part 521 or the second magnet part 522 .
- an imaginary straight line connecting the longitudinal center of the fourth magnet part 524 and the longitudinal center of the fifth magnet part 525 passes through the central part C of the space part 515 .
- the fourth magnet portion 524 includes a fourth opposing face 524a and a fourth opposing face 524b.
- the fourth opposing surface 524a is defined as a side surface of the fourth magnet portion 524 facing the third magnet portion 523 .
- the fourth opposing surface 524a may be defined as a side surface of the fourth magnet part 524 facing the first surface 511 .
- the fourth opposite surface 524b is defined as the other side surface of the fourth magnet portion 524 opposite to the third magnet portion 523 .
- the fourth opposite surface 524b may be defined as the other surface of the fourth magnet part 524 facing the second surface 512 .
- the fourth opposing face 524a and the fourth opposing face 524b are magnetized with different polarities. That is, the fourth opposing surface 524a may be magnetized to one of the N pole and the S pole, and the fourth opposing surface 524b may be magnetized to the other of the N pole and the S pole.
- a magnetic field propagating from any one of the fourth opposing surface 524a and the fourth opposing surface 524b to the other is formed by the fourth magnet unit 524 itself.
- the polarity of the fourth opposing surface 524a may be the same as the polarity of the third opposing surface 523a of the third magnet part 523 . Accordingly, a magnetic field in a direction to repel each other is formed between the fourth magnet part 524 and the third magnet part 523 .
- the polarity of the fourth opposing surface 524a may be different from the polarity of the first inner surface 521a of the first magnet part 521 . Accordingly, a magnetic field traveling from one to the other is formed between the fourth magnet part 524 and the first magnet part 521 .
- the polarity of the fourth opposing surface 524a may be different from the polarity of the second inner surface 522a of the second magnet part 522 . Accordingly, a magnetic field traveling from one to the other is formed between the fourth magnet part 524 and the second magnet part 522 .
- the fourth opposing surface 524a may be positioned between the second surface 512 and an imaginary straight line connecting each of the fixed contacts 220a and 220b. That is, the fourth opposing surface 524a may be positioned to be biased toward the second surface 512 based on an imaginary straight line passing through each of the fixed contacts 220a and 220b.
- the fifth magnet part 525 forms a magnetic field together with the first magnet part 521 , the second magnet part 522 , and the sixth magnet part 526 .
- the fifth magnet unit 525 may also form a magnetic field by itself.
- the fifth magnet portion 525 is located inside the fourth surface 514 .
- the fifth magnet part 525 is located inside the fourth surface 514 , biased toward the first surface 511 . That is, the fifth magnet part 525 is located closer to the first surface 511 than the second surface 512 .
- the fifth magnet part 525 is arranged in parallel with the sixth magnet part 526 . Specifically, the fifth magnet part 525 is positioned between the first magnet part 521 and the sixth magnet part 526 . In other words, the fifth magnet part 525 is positioned between the first surface 511 and the sixth magnet part 526 . In the illustrated embodiment, the fifth magnet part 525 is located on the rear side of the sixth magnet part 526 .
- the fifth magnet part 525 is spaced apart from the sixth magnet part 526 .
- the fifth magnet part 525 is disposed to face the sixth magnet part 526 in the extending direction thereof, in the illustrated embodiment, in the front-rear direction.
- the fifth magnet portion 525 may be in contact with the sixth magnet portion 526 .
- the fifth magnet part 525 and the sixth magnet part 526 may be disposed to face each other in an extension direction thereof, that is, in the front-rear direction in the illustrated embodiment.
- the fifth magnet part 525 is disposed to face the third magnet part 523 . Specifically, the fifth magnet part 525 is disposed to face the third magnet part 523 in the horizontal direction, in the left-right direction in the illustrated embodiment, with the space part 515 interposed therebetween.
- the fifth magnet unit 525 extends in one direction, in the front-rear direction in the illustrated embodiment. That is, the extension direction of the fifth magnet part 525 forms a predetermined angle with the extension direction of the first magnet part 521 or the second magnet part 522 . In an embodiment, the fifth magnet part 525 may extend perpendicularly to the first magnet part 521 or the second magnet part 522 .
- an imaginary straight line connecting the longitudinal center of the fifth magnet part 525 and the longitudinal center of the fourth magnet part 524 passes through the central part C of the space part 515 .
- the fifth magnet portion 525 includes a fifth opposing face 525a and a fifth opposing face 525b.
- the fifth opposing surface 525a is defined as a side surface of the fifth magnet unit 525 facing the sixth magnet unit 526 .
- the fifth opposing surface 525a may be defined as one side surface of the fifth magnet part 525 facing the second surface 512 .
- the fifth opposite surface 525b is defined as the other surface of the fifth magnet part 525 opposite to the sixth magnet part 526 .
- the fifth opposite surface 525b may be defined as the other surface of the fifth magnet part 525 facing the first surface 511 .
- the fifth opposite surface 525a and the fifth opposite surface 525b are magnetized with different polarities. That is, the fifth opposite surface 525a may be magnetized to one of the N pole and the S pole, and the fifth opposite surface 525b may be magnetized to the other of the N pole and the S pole.
- a magnetic field propagating from any one of the fifth opposing surface 525a and the fifth opposing surface 525b to the other is formed by the fifth magnet unit 525 itself.
- the polarity of the fifth opposing surface 525a may be the same as the polarity of the sixth opposing surface 526a of the sixth magnet part 526 . Accordingly, a magnetic field in a direction to repel each other is formed between the fifth magnet part 525 and the sixth magnet part 526 .
- the polarity of the fifth opposing surface 525a may be different from the polarity of the first inner surface 521a of the first magnet part 521 . Accordingly, a magnetic field traveling from one to the other is formed between the fifth magnet part 525 and the first magnet part 521 .
- the polarity of the fifth opposing surface 525a may be different from the polarity of the second inner surface 522a of the second magnet part 522 . Accordingly, a magnetic field propagating from one to the other is formed between the fifth magnet part 525 and the second magnet part 522 .
- the fifth opposing surface 525a may be positioned between the first surface 511 and an imaginary straight line connecting each of the fixed contacts 220a and 220b. That is, the fifth opposing surface 525a may be positioned to be biased toward the first surface 511 based on an imaginary straight line passing through each of the fixed contacts 220a and 220b.
- the sixth magnet part 526 forms a magnetic field together with the first magnet part 521 , the second magnet part 522 , and the fifth magnet part 525 .
- the sixth magnet unit 526 may also form a magnetic field by itself.
- the sixth magnet portion 526 is located on the inside of the fourth surface 514 .
- the sixth magnet part 526 is located on the inside of the fourth surface 514 , biased toward the second surface 512 . That is, the sixth magnet part 526 is located closer to the second surface 512 than the first surface 511 .
- the sixth magnet part 526 is disposed in parallel with the fifth magnet part 525 . Specifically, the sixth magnet part 526 is positioned between the fifth magnet part 525 and the second magnet part 522 . In other words, the sixth magnet part 526 is positioned between the fifth magnet part 525 and the second surface 512 . In the illustrated embodiment, the sixth magnet part 526 is located on the front side of the fifth magnet part 525 .
- the sixth magnet part 526 is spaced apart from the fifth magnet part 525 .
- the sixth magnet part 526 is disposed to face the fifth magnet part 525 and its extension direction, in the illustrated embodiment, in the front-rear direction.
- the sixth magnet portion 526 may be in contact with the fifth magnet portion 525 .
- the sixth magnet part 526 and the fifth magnet part 525 may be disposed to face each other in the extending direction thereof, that is, in the front-rear direction in the illustrated embodiment.
- the sixth magnet part 526 is disposed to face the fourth magnet part 524 .
- the sixth magnet unit 526 is disposed to face the fourth magnet unit 524 in the horizontal direction with the space unit 515 interposed therebetween, and in the left and right direction in the illustrated embodiment.
- the sixth magnet unit 526 extends in one direction, in the illustrated embodiment, in the front-rear direction. That is, the extension direction of the sixth magnet part 526 forms a predetermined angle with the extension direction of the first magnet part 521 or the second magnet part 522 . In an embodiment, the sixth magnet part 526 may extend perpendicularly to the first magnet part 521 or the second magnet part 522 .
- an imaginary straight line connecting the longitudinal center of the sixth magnet part 526 and the longitudinal center of the third magnet part 523 passes through the central part C of the space part 515 .
- the sixth magnet portion 526 includes a sixth opposing face 526a and a sixth opposing face 526b.
- the sixth opposing surface 526a is defined as a side surface of the sixth magnet part 526 facing the fifth magnet part 525 .
- the sixth opposing surface 526a may be defined as one side surface of the sixth magnet part 526 facing the first surface 511 .
- the sixth opposite surface 526b is defined as the other surface of the sixth magnet part 526 opposite to the fifth magnet part 525 .
- the sixth opposite surface 526b may be defined as the other surface of the sixth magnet part 526 facing the second surface 512 .
- the sixth opposing face 526a and the sixth opposing face 526b are magnetized with different polarities. That is, the sixth opposing surface 526a may be magnetized to one of the N pole and the S pole, and the sixth opposite surface 526b may be magnetized to the other of the N pole and the S pole.
- a magnetic field propagating from any one of the sixth opposing surface 526a and the sixth opposing surface 526b to the other is formed by the sixth magnet unit 526 itself.
- the polarity of the sixth opposing surface 526a may be the same as the polarity of the fifth opposing surface 525a of the fifth magnet part 525 . Accordingly, a magnetic field in a direction to repel each other is formed between the sixth magnet part 526 and the fifth magnet part 525 .
- the polarity of the sixth opposing surface 526a may be different from the polarity of the first inner surface 521a of the first magnet part 521 . Accordingly, a magnetic field traveling from one to the other is formed between the sixth magnet unit 526 and the first magnet unit 521 .
- the polarity of the sixth opposing surface 526a may be different from the polarity of the second inner surface 522a of the second magnet part 522 . Accordingly, a magnetic field traveling from one to the other is formed between the sixth magnet part 526 and the second magnet part 522 .
- the sixth opposing surface 526a may be positioned between the second surface 512 and an imaginary straight line connecting each of the fixed contacts 220a and 220b. That is, the sixth opposing surface 526a may be positioned to be biased toward the second surface 512 based on an imaginary straight line passing through each of the fixed contacts 220a and 220b.
- the arc path forming unit 500 forms a magnetic field in the arc chamber 21 .
- a path A. P of the arc which is a path through which the arc generated by the fixed contact 22 and the movable contact 43 being spaced apart, moves may be formed.
- the generated arc can be induced in a direction opposite to the center (C) of the DC relay (1).
- "x" shown in each fixed contact (220a, 220b) is the direction in which current flows from the fixed contact (220a, 220b) toward the movable contact (43) (that is, the downward direction), that is, the ground the direction in which it penetrates.
- the current conduction direction is, after the current flows into the first fixed contactor 22a and passes through the movable contactor 43, the second fixed contactor 22b is direction through which
- the current passing direction is, after the current flows into the second fixed contact ( 22b ) and passes through the movable contact ( 43 ), the first fixed contact ( 22a ) ) is the outgoing direction.
- the first inner surface 521a and the second inner surface 521b are magnetized to the N pole. Further, the third to sixth opposing surfaces 523a, 524a, 525a, and 526a are magnetized to the S pole.
- the magnetic field is formed in a direction that diverges from the N pole and converges to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 521 and 522 and the third and fourth magnet parts 523 and 524 is generated at the first and second inner surfaces 521a and 522a. It is formed in a direction toward the third and fourth opposing surfaces 523a and 524a.
- the main magnetic field MM F formed between the first and second magnet parts 521 and 522 and the fifth and sixth magnet parts 525 and 526 is generated at the first and second inner surfaces 521a and 522a. It is formed in a direction toward the fifth and sixth opposing surfaces 525a and 526a.
- the first magnet part 521 forms a negative magnetic field S.M.F in a direction from the first inner surface 521a to the first outer surface 521b.
- the second magnet unit 522 forms a negative magnetic field S.M.F in a direction from the second inner surface 522a to the second outer surface 522b.
- the third to sixth magnet parts 523 , 524 , 525 , and 526 have negative magnetic fields in the direction from the opposite surfaces 523b , 524b , 525b and 526b to the opposite surfaces 523a , 524a , 525a , 526a. (SM F).
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 521a and the second inner surface 521b are magnetized to the S pole.
- the third to sixth opposing surfaces 523a, 524a, 525a, and 526a are magnetized to the N pole.
- the main magnetic field MM F formed between the first and second magnet parts 521 and 522 and the third and fourth magnet parts 523 and 524 is the third and fourth opposing surfaces 523a and 524a. is formed in a direction toward the first and second inner surfaces 521a and 522a.
- the main magnetic field MM F formed between the first and second magnet parts 521 and 522 and the fifth and sixth magnet parts 525 and 526 is the fifth and sixth opposing surfaces 525a and 526a. is formed in a direction toward the first and second inner surfaces 521a and 522a.
- the first magnet part 521 forms a negative magnetic field S.M.F in a direction from the first outer surface 521b to the first inner surface 521a.
- the second magnet unit 522 forms a negative magnetic field S.M.F in a direction from the second outer surface 522b toward the second inner surface 522a.
- the third to sixth magnet portions 523 , 524 , 525 , and 526 have negative magnetic fields in the direction from the opposite surfaces 523a , 524a , 525a and 526a to the opposite surfaces 523b , 524b , 525b and 526b. (SM F).
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the arc path A. P formed by the arc path forming unit 500 does not face the central portion (C). As a result, damage to the component disposed in the central portion (C) can be prevented.
- the arc path forming unit 600 includes a magnet frame 610 and a magnet unit 620 .
- the magnet frame 610 has the same structure and function as the magnet frame 510 of the above-described embodiment. Accordingly, the description of the magnet frame 610 will be replaced with the description of the above-described magnet frame 510 .
- the magnet unit 620 has the same function as the magnet unit 520 of the above-described embodiment. However, there are some differences in the number and arrangement method of each of the magnet parts 621 , 622 , 623 , and 624 .
- the magnet unit 620 includes a first magnet unit 621 , a second magnet unit 622 , a third magnet unit 623 , and a fourth magnet unit 624 .
- the first magnet unit 621 has the same structure, arrangement, and function as the first magnet unit 521 of the above-described embodiment.
- the second magnet unit 622 has the same structure, arrangement, and function as the second magnet unit 522 of the above-described embodiment. That is, the first inner surface 621a of the first magnet part 621 and the second inner surface 622a of the second magnet part 622 are magnetized with the same polarity.
- the first and second magnet parts 621 and 622 form a main magnetic field MM F with the third and fourth magnet parts 623 and 624 , and some There is a difference.
- the third magnet part 623 has the same structure as the third magnet part 523 of the above-described embodiment. However, the third magnet part 623 has some differences from the third magnet part 523 of the above-described embodiment in the arrangement method.
- the third magnet part 623 is positioned closer to any one of the first surface 611 and the second surface 612 inside the third surface 613 .
- the third magnet portion 623 includes a third opposing face 623a and a third opposing face 623b.
- the third opposing surface 623a is defined as a surface on which the third magnet part 623 is adjacently positioned, that is, one surface facing any one of the first surface 611 and the second surface 612 .
- the third opposite surface 623b may be defined as a surface opposite to the third opposite surface 623a, that is, the other surface facing the other one of the first surface 611 and the second surface 612 . have.
- the third opposing surface 623a is magnetized with the same polarity as the first inner surface 621a and the second inner surface 622a.
- the third opposite surface 623b is magnetized with a polarity different from that of the first inner surface 621a and the second inner surface 622a.
- a magnetic field in a direction from one to the other is formed between the third opposing surface 623a and the first inner surface 621a and the second inner surface 622a.
- a magnetic field in a direction to repel each other is formed between the third opposite surface 623b and the first inner surface 621a and the second inner surface 622a.
- the fourth magnet part 624 has the same structure as the fourth magnet part 624 of the above-described embodiment. However, the fourth magnet unit 624 has some differences from the fourth magnet unit 624 of the above-described embodiment in the arrangement method.
- the fourth magnet portion 624 is located inside the fourth surface 614 , other than the surface on which the third magnet portion 623 is adjacently located among the first surface 611 and the second surface 612 . located closer to one side.
- the third magnet part 623 and the fourth magnet part 624 are respectively positioned adjacent to each other of the first surface 611 and the second surface 612 .
- the fourth magnet part 624 includes a fourth opposing face 624a and a fourth opposing face 624b.
- the fourth opposing surface 624a is defined as a surface on which the fourth magnet part 624 is located adjacently, that is, one surface facing any one of the first surface 611 and the second surface 612 .
- the fourth opposite surface 624b may be defined as a surface opposite to the fourth opposite surface 624a, that is, the other surface facing the other one of the first surface 611 and the second surface 612. have.
- the fourth opposing surface 624a is magnetized with the same polarity as the first inner surface 621a and the second inner surface 622a.
- the fourth opposite surface 624b is magnetized with a polarity different from that of the first inner surface 621a and the second inner surface 622a.
- a magnetic field in a direction from one to the other is formed between the fourth opposing surface 624a and the first inner surface 621a and the second inner surface 622a.
- a magnetic field in a direction to repel each other is formed between the fourth opposite surface 624b and the first inner surface 621a and the second inner surface 622a.
- the third magnet part 623 is located inside the third surface 613 , and is biased toward the second surface 612 . That is, the third magnet portion 623 is located closer to the second surface 612 than the first surface 611 .
- the third opposite surface 623b may be positioned between the second surface 612 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the third opposite surface 623b is positioned to be more inclined to the second surface 612 based on an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the fourth magnet portion 624 is located inside the fourth surface 614, biased toward the first surface (611). That is, the fourth magnet portion 624 is located closer to the first surface 611 than the second surface 612 .
- the fourth opposite surface 624b may be positioned between the first surface 611 and an imaginary straight line connecting each of the fixed contacts 220a and 220b. In other words, the fourth opposite surface 624b is positioned to be more inclined to the first surface 611 based on an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the third magnet part 623 is located on the inside of the third surface 613 , biased toward the first surface 611 . That is, the third magnet portion 623 is located closer to the first surface 611 than the second surface 612 .
- the third opposite surface 623b may be positioned between the first surface 611 and an imaginary straight line connecting each of the fixed contacts 220a and 220b. In other words, the third opposite surface 623b is positioned to be more inclined to the first surface 611 based on an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the fourth magnet portion 624 is located inside the fourth surface 614, biased toward the second surface (612). That is, the fourth magnet portion 624 is located closer to the second surface 612 than the first surface 611 .
- the fourth opposite surface 624b may be positioned between the second surface 612 and an imaginary straight line connecting each of the fixed contacts 220a and 220b. In other words, the fourth opposite surface 624b is positioned to be more inclined to the second surface 612 based on an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- first inner surface 621a , the second inner surface 622a , the third opposing surface 623a , and the fourth opposing surface 624a may be magnetized to have the same polarity.
- first outer surface 621b, the second outer surface 622b, the third opposite surface 623b, and the fourth opposite surface 624b may be magnetized with the same polarity.
- a magnetic field in a direction from one to the other is formed between the first and second inner surfaces 621a and 622a and the third and fourth opposite surfaces 623b and 624b.
- an arc path forming unit 600 including a magnet unit 630 according to a modified example of this embodiment is illustrated.
- the modified example of this embodiment has some differences in the number and arrangement method of the magnet parts 630 as compared with the magnet parts 620 according to the above-described embodiment.
- the magnet part 630 includes a first magnet part 631 , a second magnet part 632 , and a third magnet part 633 .
- the first magnet unit 631 has the same structure, arrangement, and function as the first magnet unit 621 of the above-described embodiment.
- the second magnet unit 632 has the same structure, arrangement, and function as the second magnet unit 622 of the above-described embodiment. That is, the first inner surface 631a of the first magnet part 631 and the second inner surface 632a of the second magnet part 632 are magnetized with the same polarity.
- the first and second magnet parts 631 and 632 are different from the above-described embodiment in that the third magnet part 633 and the main magnetic field M. M. F, respectively, are formed.
- the third magnet part 633 has the same structure as the third magnet part 633 of the above-described embodiment. However, the third magnet part 633 has some differences from the third magnet part 633 of the above-described embodiment in the arrangement method.
- the third magnet part 633 is located on the inside of the third surface 613 or the fourth surface 614 , more adjacent to any one of the first surface 611 or the second surface 612 .
- the third magnet portion 633 includes a third opposing face 633a and a third opposing face 633b.
- the third opposing surface 633a may be defined as a surface on which the third magnet part 633 is located adjacently, that is, one surface facing any one of the first surface 611 and the second surface 612 .
- the third opposite surface 633b may be defined as a surface opposite to the third opposite surface 633a, that is, the other surface facing the other of the first surface 611 and the second surface 612 .
- the third opposing surface 633a is magnetized with the same polarity as the first inner surface 631a and the second inner surface 632a.
- the third opposite surface 633b is magnetized with a polarity different from that of the first inner surface 631a and the second inner surface 632a.
- a magnetic field formed between the third opposite surface 633b and the first and second inner surfaces 631a and 632a is formed in a direction from one to the other.
- the third opposite surface 633b is positioned to be biased toward a surface on which the third magnet part 633 is located more adjacent among the first surface 611 and the second surface 612 .
- the third opposite surface 633b is positioned to be more inclined to the second surface 612 based on an imaginary straight line connecting each of the fixed contacts 220a and 220b. That is, the third opposite surface 633b is positioned between the imaginary straight line connecting the fixed contacts 220a and 220b and the surface on which the third magnet part 633 is located more adjacently.
- the third magnet portion 633 is located inside the third surface 613 .
- the third magnet portion 633 is located biased to the second surface 612 , that is, closer to it.
- the third opposite surface 633b may be positioned between the second surface 612 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the third magnet part 633 is located inside the third surface 613 .
- the third magnet portion 633 is biased toward the first surface 611 , that is, it is located closer to the first surface 611 .
- the third opposite surface 633b may be positioned between the first surface 611 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the third magnet portion 633 is located inside the fourth surface 614 .
- the third magnet portion 633 is located biased to the second surface 612 , that is, closer to it.
- the third opposite surface 633b may be positioned between the second surface 612 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the third magnet portion 633 is located inside the fourth surface 614 .
- the third magnet portion 633 is biased toward the first surface 611 , that is, it is located closer to the first surface 611 .
- the third opposite surface 633b may be positioned between the first surface 611 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- first inner surface 631a, the second inner surface 632a, and the third opposite surface 633a may be magnetized to have the same polarity.
- first outer surface 631b, the second outer surface 632b, and the third opposite surface 633b may be magnetized with the same polarity.
- a magnetic field in a direction from one surface to the other is formed between the first and second inner surfaces 631a and 632a and the third opposite surface 633b.
- "x" shown in each fixed contact (220a, 220b) is the direction in which the current flows from the fixed contact (220a, 220b) toward the movable contact (43) (that is, the downward direction), that is, the ground the direction in which it penetrates.
- each fixed contact (220a, 220b) is the direction in which the current flows from the movable contact (43) toward the fixed contact (220a, 220b) (that is, the upward direction), that is, , means the direction from the ground.
- the current passing direction is, after the current flows into the second fixed contact ( 22b ) and passes through the movable contact ( 43 ), the first fixed contact ( 22a ) ) is the outgoing direction.
- the first inner surface 621a and the second inner surface 622a are magnetized to the N pole.
- the third opposite surface 623b and the fourth opposite surface 624b are magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 621 and 622 and the third magnet part 623 is formed on the first and second inner surfaces 621a and 622a on the third opposite surface ( 623b) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 621 and 622 and the fourth magnet part 624 is formed from the first and second inner surfaces 621a and 622a on the fourth opposite surface ( 624b) is formed.
- the first magnet part 621 forms a negative magnetic field S.M.F in a direction from the first inner surface 621a to the first outer surface 621b.
- the second magnet part 622 forms a negative magnetic field S.M.F in a direction from the second inner surface 622a to the second outer surface 622b.
- the third and fourth magnet parts 623 and 624 form a negative magnetic field S. M. F in a direction from each of the opposite surfaces 623a and 624a toward the opposite surfaces 623b and 624b.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 621a and the second inner surface 622a are magnetized to the S pole.
- the third opposite surface 623b and the fourth opposite surface 624b are magnetized to the N pole.
- the first magnet part 621 forms a negative magnetic field S.M.F in a direction from the first outer surface 621b toward the first inner surface 621a.
- the second magnet part 622 forms a negative magnetic field S.M.F in a direction from the second outer surface 622b toward the second inner surface 622a.
- the third and fourth magnet parts 623 and 624 form a negative magnetic field S.M.F in a direction from the opposite surfaces 623b and 624b to the opposite surfaces 623a and 624a, respectively.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the first inner surface 621a and the second inner surface 622a are magnetized to the N pole.
- the third opposite surface 623b and the fourth opposite surface 624b are magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 621 and 622 and the third magnet part 623 is formed on the first and second inner surfaces 621a and 622a on the third opposite surface ( 623b) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 621 and 622 and the fourth magnet part 624 is formed from the first and second inner surfaces 621a and 622a on the fourth opposite surface ( 624b) is formed.
- the first magnet part 621 forms a negative magnetic field S.M.F in a direction from the first inner surface 621a to the first outer surface 621b.
- the second magnet part 622 forms a negative magnetic field S.M.F in a direction from the second inner surface 622a to the second outer surface 622b.
- the third and fourth magnet parts 623 and 624 form a negative magnetic field S. M. F in a direction from each of the opposite surfaces 623a and 624a toward the opposite surfaces 623b and 624b.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 621a and the second inner surface 622a are magnetized to the S pole.
- the third opposite surface 623b and the fourth opposite surface 624b are magnetized to the N pole.
- the first magnet part 621 forms a negative magnetic field S.M.F in a direction from the first outer surface 621b toward the first inner surface 621a.
- the second magnet part 622 forms a negative magnetic field S.M.F in a direction from the second outer surface 622b toward the second inner surface 622a.
- the third and fourth magnet parts 623 and 624 form a negative magnetic field S.M.F in a direction from the opposite surfaces 623b and 624b to the opposite surfaces 623a and 624a, respectively.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the first inner surface 631a and the second inner surface 632a are magnetized to the N pole.
- the third opposite surface 633b is magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 631 and 632 and the third magnet part 633 is formed on the first and second inner surfaces 631a and 632a on the third opposite surface ( 633b) is formed.
- the first magnet part 631 forms a negative magnetic field S.M.F in a direction from the first inner surface 631a to the first outer surface 631b.
- the second magnet part 632 forms a negative magnetic field S. M. F in a direction from the second inner surface 632a to the second outer surface 632b.
- the third magnet unit 633 forms a negative magnetic field S.M.F in a direction from the third opposing face 633a to the third opposing face 633b.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 631a and the second inner surface 632a are magnetized to the S pole.
- the third opposite surface 633b is magnetized to the N pole.
- the main magnetic field MM F formed between the first and second magnet parts 631 and 632 and the third magnet part 633 is the first and second inner surfaces 631a, 632a) is formed.
- the first magnet part 631 forms a negative magnetic field S.M.F in a direction from the first outer surface 631b to the first inner surface 631a.
- the second magnet part 632 forms a negative magnetic field S.M.F in a direction from the second outer surface 632b toward the second inner surface 632a.
- the third magnet part 633 forms a negative magnetic field S.M.F in a direction from the third opposite surface 633b toward the third opposite surface 633a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the first inner surface 631a and the second inner surface 632a are magnetized to the N pole.
- the third opposite surface 633b is magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 631 and 632 and the third magnet part 633 is formed on the first and second inner surfaces 631a and 632a on the third opposite surface ( 633b) is formed.
- the first magnet part 631 forms a negative magnetic field S.M.F in a direction from the first inner surface 631a to the first outer surface 631b.
- the second magnet part 632 forms a negative magnetic field S. M. F in a direction from the second inner surface 632a to the second outer surface 632b.
- the third magnet unit 633 forms a negative magnetic field S.M.F in a direction from the third opposing face 633a to the third opposing face 633b.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front left is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 631a and the second inner surface 632a are magnetized to the S pole.
- the third opposite surface 633b is magnetized to the N pole.
- the main magnetic field MM F formed between the first and second magnet parts 631 and 632 and the third magnet part 633 is the first and second inner surfaces 631a, 632a) is formed.
- the first magnet part 631 forms a negative magnetic field S.M.F in a direction from the first outer surface 631b to the first inner surface 631a.
- the second magnet part 632 forms a negative magnetic field S.M.F in a direction from the second outer surface 632b toward the second inner surface 632a.
- the third magnet part 633 forms a negative magnetic field S.M.F in a direction from the third opposite surface 633b toward the third opposite surface 633a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the first inner surface 631a and the second inner surface 632a are magnetized to the N pole.
- the third opposite surface 633b is magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 631 and 632 and the third magnet part 633 is formed on the first and second inner surfaces 631a and 632a on the third opposite surface ( 633b) is formed.
- the first magnet part 631 forms a negative magnetic field S.M.F in a direction from the first inner surface 631a to the first outer surface 631b.
- the second magnet part 632 forms a negative magnetic field S. M. F in a direction from the second inner surface 632a to the second outer surface 632b.
- the third magnet unit 633 forms a negative magnetic field S.M.F in a direction from the third opposing face 633a to the third opposing face 633b.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front left is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 631a and the second inner surface 632a are magnetized to the S pole.
- the third opposite surface 633b is magnetized to the N pole.
- the main magnetic field MM F formed between the first and second magnet parts 631 and 632 and the third magnet part 633 is the first and second inner surfaces 631a, 632a) is formed.
- the first magnet part 631 forms a negative magnetic field S.M.F in a direction from the first outer surface 631b to the first inner surface 631a.
- the second magnet part 632 forms a negative magnetic field S.M.F in a direction from the second outer surface 632b toward the second inner surface 632a.
- the third magnet part 633 forms a negative magnetic field S.M.F in a direction from the third opposite surface 633b toward the third opposite surface 633a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the first inner surface 631a and the second inner surface 632a are magnetized to the N pole.
- the third opposite surface 633b is magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 631 and 632 and the third magnet part 633 is formed on the first and second inner surfaces 631a and 632a on the third opposite surface ( 633b) is formed.
- the first magnet part 631 forms a negative magnetic field S.M.F in a direction from the first inner surface 631a to the first outer surface 631b.
- the second magnet part 632 forms a negative magnetic field S. M. F in a direction from the second inner surface 632a to the second outer surface 632b.
- the third magnet unit 633 forms a negative magnetic field S.M.F in a direction from the third opposing face 633a to the third opposing face 633b.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 631a and the second inner surface 632a are magnetized to the S pole.
- the third opposite surface 633b is magnetized to the N pole.
- the main magnetic field MM F formed between the first and second magnet parts 631 and 632 and the third magnet part 633 is the first and second inner surfaces 631a, 632a) is formed.
- the first magnet part 631 forms a negative magnetic field S.M.F in a direction from the first outer surface 631b to the first inner surface 631a.
- the second magnet part 632 forms a negative magnetic field S.M.F in a direction from the second outer surface 632b toward the second inner surface 632a.
- the third magnet part 633 forms a negative magnetic field S.M.F in a direction from the third opposite surface 633b toward the third opposite surface 633a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the arc path A. P formed by the arc path forming unit 600 does not face the central portion (C). As a result, damage to the component disposed in the central portion (C) can be prevented.
- an arc path forming unit 700 according to a sixth embodiment of the present invention will be described in detail with reference to FIGS. 40 to 57 .
- the arc path forming unit 700 includes a magnet frame 710 and a magnet unit 720 .
- the magnet frame 710 has the same structure and function as the magnet frame 510 of the above-described embodiment. Accordingly, the description of the magnet frame 710 will be replaced with the description of the above-described magnet frame 510 .
- the magnet unit 720 has the same function as the magnet unit 520 of the above-described embodiment. However, there are some differences in the number and arrangement method of each of the magnet parts 721 , 722 , 723 , 724 , and 725 .
- the magnet part 720 includes a first magnet part 721 , a second magnet part 722 , a third magnet part 723 , a fourth magnet part 724 and A fifth magnet part 725 is included.
- the first magnet part 721 has the same structure, arrangement, and function as the first magnet part 521 of the above-described embodiment.
- the second magnet part 722 has the same structure, arrangement, and function as the second magnet part 522 of the above-described embodiment. That is, the first inner surface 721a of the first magnet part 721 and the second inner surface 722a of the second magnet part 722 are magnetized with the same polarity.
- the first and second magnet parts 721 and 722 form the main magnetic field MM F with the third to fifth magnet parts 723 , 724 , 725 according to the above-described embodiment. and there are some differences.
- the third magnet part 723 has the same structure as the third magnet part 523 of the above-described embodiment. However, the third magnet part 723 has some differences from the third magnet part 523 of the above-described embodiment in the arrangement method.
- the third magnet portion 723 is further on any one of the first surface 711 and the second surface 712 on the inside of any one of the third surface 713 and the fourth surface 714 . located adjacent
- the fourth magnet part 724 has the same structure as the fourth magnet part 724 of the above-described embodiment. However, the fourth magnet part 724 has some differences from the fourth magnet part 724 of the above-described embodiment in the arrangement method.
- the fourth magnet part 724 is the third magnet of the first surface 711 and the second surface 712 on the inside of any one of the third surface 713 and the fourth surface 714 .
- the portion 723 is located closer to the other side than the side to which it is located.
- the third magnet part 723 and the fourth magnet part 724 are on the inside of any one of the third surface 713 and the fourth surface 714 in their extension direction (ie, the front-back direction). ) are placed side by side.
- the third magnet part 723 and the fourth magnet part 724 are positioned so that the third opposing surface 723a and the fourth opposing surface 724a of the fourth magnet part 724 are in contact with each other or are spaced apart from each other.
- the third magnet part 723 and the fourth magnet part 724 are respectively located adjacent to each other of the first surface 711 and the second surface 712 .
- the third magnet portion 723 includes a third opposite surface 723a and a third opposite surface 723b.
- the third opposing surface 723a may be defined as a side surface of the third magnet 723 facing the fourth magnet 724 .
- the third opposing surface 723a may be defined as a front side surface of the third magnet part 723 .
- the third opposite surface 723b may be defined as the other surface of the third magnet part 723 opposite to the fourth magnet part 724 .
- the third opposite surface 723b may be defined as a rear side surface of the third magnet part 723 .
- the third opposing surface 723a is magnetized with a polarity different from that of the first inner surface 721a and the second inner surface 722a.
- the third opposite surface 723b is magnetized with the same polarity as the first inner surface 721a and the second inner surface 722a.
- the third opposing surface 723a may be positioned between the imaginary straight line connecting the fixed contacts 220a and 220b and the first surface 711 .
- the fourth magnet portion 724 includes a fourth opposing face 724a and a fourth opposing face 724b.
- the fourth opposing surface 724a may be defined as a side surface of the fourth magnet unit 724 facing the third magnet unit 723 .
- the fourth opposing surface 724a may be defined as a rear side surface of the fourth magnet unit 724 .
- the fourth opposite surface 724b may be defined as the other side surface of the fourth magnet part 724 opposite to the third magnet part 723 .
- the fourth opposite surface 724b may be defined as a front side surface of the fourth magnet part 724 .
- the fourth opposing surface 724a is magnetized with a polarity different from that of the first inner surface 721a and the second inner surface 722a.
- the fourth opposite surface 724b is magnetized with the same polarity as the first inner surface 721a and the second inner surface 722a.
- the fourth opposing surface 724a may be positioned between the imaginary straight line connecting the fixed contacts 220a and 220b and the second surface 712 .
- the fifth magnet part 725 has the same structure as the fifth magnet part 525 of the above-described embodiment. However, the fifth magnet part 725 has some differences from the fifth magnet part 525 of the above-described embodiment in the arrangement method.
- the fifth magnet part 725 is further on any one of the first surface 711 and the second surface 712 on the inside of the other one of the third surface 713 and the fourth surface 714 . located adjacent
- the fifth magnet part 725 is a third magnet part 723 and a fourth magnet part 724 of the third surface 713 and the fourth surface 714 of any one of the above disposed inside. It is disposed on the inside of the other side other than the side.
- the fifth magnet part 725 includes a fifth opposing surface 725a and a fifth opposing surface 725b.
- the fifth opposing surface 725a is one side of the fifth magnet part 725 that faces any one of the first surface 711 and the second surface 712 on which the fifth magnet part 725 is located adjacently. can be defined as facets.
- the fifth magnet portion 725 is positioned adjacent to the second surface 712 . Accordingly, the fifth opposing surface 725a may be defined as one side (ie, the front side) of the fifth magnet part 725 facing the second surface 712 .
- the fifth magnet portion 725 is positioned adjacent to the first surface 711 . Accordingly, the fifth opposing surface 725a may be defined as one side (ie, rear side) surface of the fifth magnet part 725 facing the first surface 711 .
- the fifth opposite surface 725b is the first surface 711 and the second surface 712 of the fifth magnet portion 725 opposite to any one surface on which the fifth magnet portion 725 is located adjacently. It can be defined as the other side.
- the fifth magnet portion 725 is positioned adjacent to the second surface 712 .
- the fifth opposite surface 725b may be defined as the other side (ie, the rear side) surface of the fifth magnet part 725 facing the second surface 712 , that is, the first surface 711 . have.
- the fifth magnet portion 725 is positioned adjacent to the first surface 711 .
- the fifth opposite surface 725b may be defined as the other side (ie, the front side) of the fifth magnet part 725 opposite to the first surface 711 , that is, facing the second surface 712 . have.
- the fifth opposite surface 725b has an imaginary straight line connecting the fixed contacts 220a and 220b, and the fifth magnet part 725 of the first surface 711 and the second surface 712 is located adjacent to each other. It can be located between any one of the sides.
- the fifth opposite surface 725b is more biased to the second surface 712 than an imaginary straight line connecting the fixed contacts 220a and 220b.
- the fifth opposite surface 725b is more biased to the first surface 711 than an imaginary straight line connecting the fixed contacts 220a and 220b.
- the third magnet part 723 and the fourth magnet part 724 are positioned side by side on the inside of the fourth surface 714 .
- the third magnet part 723 is located on the first surface 711
- the fourth magnet part 724 is located on the second surface 712 .
- the third opposing surface 723a may be positioned between the first surface 711 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the fourth opposing surface 724a may be positioned between the second surface 712 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the fifth magnet part 725 is located inside the third surface 713 , and is biased toward the second surface 712 .
- the fifth magnet part 725 is disposed to face the fourth magnet part 724 with the space part 715 therebetween.
- the fifth opposite surface 725b may be positioned between the second surface 712 and an imaginary straight line connecting the respective fixed contacts 220a and 220b.
- the fifth magnet part 725 is located inside the third surface 713 , and is biased toward the first surface 711 .
- the fifth magnet part 725 is disposed to face the third magnet part 723 with the space part 715 interposed therebetween.
- the fifth opposite surface 725b may be positioned between the first surface 711 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the third magnet part 723 and the fourth magnet part 724 are positioned side by side on the inside of the third surface 713 .
- the third magnet part 723 is located on the first surface 711
- the fourth magnet part 724 is located on the second surface 712 .
- the third opposing surface 723a may be positioned between the first surface 711 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the fourth opposing surface 724a may be positioned between the second surface 712 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- the fifth magnet part 725 is located inside the fourth surface 714 , and is biased toward the second surface 712 .
- the fifth magnet part 725 is disposed to face the fourth magnet part 724 with the space part 715 therebetween.
- the fifth opposite surface 725b may be positioned between the second surface 712 and an imaginary straight line connecting the respective fixed contacts 220a and 220b.
- the fifth magnet part 725 is located on the inside of the fourth surface 714 , biased toward the first surface 711 .
- the fifth magnet part 725 is disposed to face the third magnet part 723 with the space part 715 interposed therebetween.
- the fifth opposite surface 725b may be positioned between the first surface 711 and an imaginary straight line connecting each of the fixed contacts 220a and 220b.
- first inner surface 721a, the second inner surface 722a, the third opposite surface 723b, the fourth opposite surface 724b, and the fifth opposite surface 725a may be magnetized with the same polarity.
- first outer surface 721b , the second outer surface 722b , the third opposing surface 723a , the fourth opposing surface 724a , and the fifth opposing surface 725b may be magnetized with the same polarity.
- the modified example of this embodiment has some differences in the number and arrangement method of the magnet parts 730 as compared with the magnet part 720 according to the above-described embodiment.
- the magnet part 730 includes a first magnet part 731 , a second magnet part 732 , a third magnet part 733 , and a fourth magnet part 734 . ) is included. That is, in this embodiment, the magnet part corresponding to the fifth magnet part 725 of the above-described embodiment is excluded.
- each magnet part 731 , 732 , 733 , 734 are the same as the structure and arrangement method of each magnet part 721 , 722 , 723 , 724 of the above-described embodiment.
- first inner surface 721a, the second inner surface 722a, the third opposite surface 723b, and the fourth opposite surface 724b may be magnetized with the same polarity.
- second outer surface 721b, the second outer surface 722b, the third opposing surface 723a, and the fourth opposing surface 724a may be magnetized to have the same polarity.
- each fixed contact (220a, 220b) is the direction in which current flows from the fixed contact (220a, 220b) toward the movable contact (43) (that is, the downward direction), that is, the ground the direction in which it penetrates.
- the current conduction direction is, after the current flows into the first fixed contactor 22a and passes through the movable contactor 43, the second fixed contactor 22b is direction through which
- the current passing direction is, after the current flows into the second fixed contactor 22b and passes through the movable contactor 43, the first fixed contactor 22a ) is the outgoing direction.
- the first inner surface 721a and the second inner surface 722a are magnetized to the N pole. Further, the third opposing face 723a, the fourth opposing face 724a, and the fifth opposing face 725b are magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the third magnet part 723 is formed from the first and second inner surfaces 721a and 722a on the third opposing surface ( 723a) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fourth magnet part 724 is formed from the first and second inner surfaces 721a and 722a on the fourth opposing surface ( 724a) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fifth magnet part 725 is applied to the fifth opposite surface from the first and second inner surfaces 721a and 722a. It is formed in the direction toward (725b).
- the first magnet part 721 forms a negative magnetic field S.M.F in a direction from the first inner surface 721a to the first outer surface 721b.
- the second magnet part 722 forms a negative magnetic field S.M.F in a direction from the second inner surface 722a toward the second outer surface 722b.
- the third and fourth magnet parts 723 and 724 form a negative magnetic field S. M. F in a direction from the opposite surfaces 723b and 724b to the opposite surfaces 723a and 724a, respectively.
- the fifth magnet unit 725 forms a negative magnetic field S.M.F in a direction from the fifth opposing face 725a to the fifth opposing face 725b.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 721a and the second inner surface 722a are magnetized to the S pole.
- the third opposing face 723a, the fourth opposing face 724a, and the fifth opposing face 725b are magnetized to the N-pole.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fifth magnet part 725 is formed from the fifth opposite surface 725b to the first and second inner surfaces 721a. , 722a) is formed.
- the first magnet part 721 forms a negative magnetic field S.M.F in a direction from the first outer surface 721b to the first inner surface 721a.
- the second magnet part 722 forms a negative magnetic field S.M.F in a direction from the second outer surface 722b toward the second inner surface 722a.
- the third and fourth magnet parts 723 and 724 form a negative magnetic field S. M. F in a direction from each of the opposing faces 723a and 724a toward the opposing faces 723b and 724b.
- the fifth magnet part 725 forms a negative magnetic field S.M.F in a direction from the fifth opposite surface 725b to the fifth opposite surface 725a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the first inner surface 721a and the second inner surface 722a are magnetized to the N pole. Further, the third opposing face 723a, the fourth opposing face 724a, and the fifth opposing face 725b are magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the third magnet part 723 is formed from the first and second inner surfaces 721a and 722a on the third opposing surface ( 723a) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fourth magnet part 724 is formed from the first and second inner surfaces 721a and 722a on the fourth opposing surface ( 724a) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fifth magnet part 725 is applied to the fifth opposite surface from the first and second inner surfaces 721a and 722a. It is formed in the direction toward (725b).
- the first magnet part 721 forms a negative magnetic field S.M.F in a direction from the first inner surface 721a to the first outer surface 721b.
- the second magnet part 722 forms a negative magnetic field S.M.F in a direction from the second inner surface 722a toward the second outer surface 722b.
- the third and fourth magnet parts 723 and 724 form a negative magnetic field S. M. F in a direction from the opposite surfaces 723b and 724b to the opposite surfaces 723a and 724a, respectively.
- the fifth magnet unit 725 forms a negative magnetic field S.M.F in a direction from the fifth opposing face 725a to the fifth opposing face 725b.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 721a and the second inner surface 722a are magnetized to the S pole.
- the third opposing face 723a, the fourth opposing face 724a, and the fifth opposing face 725b are magnetized to the N-pole.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fifth magnet part 725 is formed from the fifth opposite surface 725b to the first and second inner surfaces 721a. , 722a) is formed.
- the first magnet part 721 forms a negative magnetic field S.M.F in a direction from the first outer surface 721b to the first inner surface 721a.
- the second magnet part 722 forms a negative magnetic field S.M.F in a direction from the second outer surface 722b toward the second inner surface 722a.
- the third and fourth magnet parts 723 and 724 form a negative magnetic field S. M. F in a direction from the opposite surfaces 723a and 724a to the opposite surfaces 723b and 724b, respectively.
- the fifth magnet part 725 forms a negative magnetic field S.M.F in a direction from the fifth opposite surface 725b to the fifth opposite surface 725a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the first inner surface 721a and the second inner surface 722a are magnetized to the N pole. Further, the third opposing face 723a, the fourth opposing face 724a, and the fifth opposing face 725b are magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the third magnet part 723 is formed from the first and second inner surfaces 721a and 722a on the third opposing surface ( 723a) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fourth magnet part 724 is formed from the first and second inner surfaces 721a and 722a on the fourth opposing surface ( 724a) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fifth magnet part 725 is applied to the fifth opposite surface from the first and second inner surfaces 721a and 722a. It is formed in the direction toward (725b).
- the first magnet part 721 forms a negative magnetic field S.M.F in a direction from the first inner surface 721a to the first outer surface 721b.
- the second magnet part 722 forms a negative magnetic field S. M. F in a direction from the second inner surface 722a to the second outer surface 722b.
- the third and fourth magnet parts 723 and 724 form a negative magnetic field S. M. F in a direction from the opposite surfaces 723b and 724b to the opposite surfaces 723a and 724a, respectively.
- the fifth magnet part 725 forms a negative magnetic field S.M.F in a direction from the fifth opposing face 725a to the fifth opposing face 725b.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 721a and the second inner surface 722a are magnetized to the S pole.
- the third opposing face 723a, the fourth opposing face 724a, and the fifth opposing face 725b are magnetized to the N-pole.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fifth magnet part 725 is formed from the fifth opposite surface 725b to the first and second inner surfaces 721a. , 722a) is formed.
- the first magnet part 721 forms a negative magnetic field S.M.F in a direction from the first outer surface 721b to the first inner surface 721a.
- the second magnet part 722 forms a negative magnetic field S.M.F in a direction from the second outer surface 722b toward the second inner surface 722a.
- the third and fourth magnet parts 723 and 724 form a negative magnetic field S. M. F in a direction from each of the opposing faces 723a and 724a toward the opposing faces 723b and 724b.
- the fifth magnet part 725 forms a negative magnetic field S.M.F in a direction from the fifth opposite surface 725b to the fifth opposite surface 725a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the first inner surface 721a and the second inner surface 722a are magnetized to the N pole. Further, the third opposing face 723a, the fourth opposing face 724a, and the fifth opposing face 725b are magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the third magnet part 723 is formed from the first and second inner surfaces 721a and 722a on the third opposing surface ( 723a) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fourth magnet part 724 is formed from the first and second inner surfaces 721a and 722a on the fourth opposing surface ( 724a) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fifth magnet part 725 is applied to the fifth opposite surface from the first and second inner surfaces 721a and 722a. It is formed in the direction toward (725b).
- the first magnet part 721 forms a negative magnetic field S.M.F in a direction from the first inner surface 721a to the first outer surface 721b.
- the second magnet part 722 forms a negative magnetic field S. M. F in a direction from the second inner surface 722a to the second outer surface 722b.
- the third and fourth magnet parts 723 and 724 form a negative magnetic field S. M. F in a direction from the opposite surfaces 723b and 724b to the opposite surfaces 723a and 724a, respectively.
- the fifth magnet unit 725 forms a negative magnetic field S.M.F in a direction from the fifth opposing face 725a to the fifth opposing face 725b.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 721a and the second inner surface 722a are magnetized to the S pole.
- the third opposing face 723a, the fourth opposing face 724a, and the fifth opposing face 725b are magnetized to the N-pole.
- the main magnetic field MM F formed between the first and second magnet parts 721 and 722 and the fifth magnet part 725 is formed from the fifth opposite surface 725b to the first and second inner surfaces 721a. , 722a) is formed.
- the first magnet part 721 forms a negative magnetic field S.M.F in a direction from the first outer surface 721b to the first inner surface 721a.
- the second magnet part 722 forms a negative magnetic field S.M.F in a direction from the second outer surface 722b toward the second inner surface 722a.
- the third and fourth magnet parts 723 and 724 form a negative magnetic field S. M. F in a direction from the opposite surfaces 723a and 724a to the opposite surfaces 723b and 724b, respectively.
- the fifth magnet part 725 forms a negative magnetic field S.M.F in a direction from the fifth opposite surface 725b to the fifth opposite surface 725a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the first inner surface 731a and the second inner surface 732a are magnetized to the N pole. Further, the third opposing face 733a and the fourth opposing face 734a are magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 731 and 732 and the third magnet part 733 is generated from the first and second inner surfaces 731a and 732a to the third opposing surface ( 733a) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 731 and 732 and the fourth magnet part 734 is formed from the first and second inner surfaces 731a and 732a on the fourth opposing surface ( 734a) is formed.
- the first magnet part 731 forms a negative magnetic field S.M.F in a direction from the first inner surface 731a to the first outer surface 731b.
- the second magnet part 732 forms a negative magnetic field S. M. F in a direction from the second inner surface 732a to the second outer surface 732b.
- the third and fourth magnet portions 733 and 734 form a negative magnetic field S. M. F in a direction from the opposite surfaces 733b and 734b to the opposite surfaces 733a and 734a, respectively.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 731a and the second inner surface 732a are magnetized to the S pole. Further, the third opposing face 733a and the fourth opposing face 734a are magnetized to the N pole.
- the main magnetic field MM F formed between the first and second magnet parts 731 and 732 and the fourth magnet part 734 is formed from the first and second inner surfaces 731a, 732a) is formed.
- the first magnet part 731 forms a negative magnetic field S.M.F in a direction from the first outer surface 731b to the first inner surface 731a.
- the second magnet part 732 forms a negative magnetic field S. M. F in a direction from the second outer surface 732b to the second inner surface 732a.
- the third and fourth magnet portions 733 and 734 form a negative magnetic field S. M. F in a direction from the opposite surfaces 733a and 734a to the opposite surfaces 733b and 734b, respectively.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the first inner surface 731a and the second inner surface 732a are magnetized to the N pole. Further, the third opposing face 733a and the fourth opposing face 734a are magnetized to the S pole.
- the main magnetic field MM F formed between the first and second magnet parts 731 and 732 and the third magnet part 733 is generated from the first and second inner surfaces 731a and 732a to the third opposing surface ( 733a) is formed.
- the main magnetic field MM F formed between the first and second magnet parts 731 and 732 and the fourth magnet part 734 is formed from the first and second inner surfaces 731a and 732a on the fourth opposing surface ( 734a) is formed.
- the first magnet part 731 forms a negative magnetic field S.M.F in a direction from the first inner surface 731a to the first outer surface 731b.
- the second magnet part 732 forms a negative magnetic field S. M. F in a direction from the second inner surface 732a to the second outer surface 732b.
- the third and fourth magnet portions 733 and 734 form a negative magnetic field S. M. F in a direction from the opposite surfaces 733b and 734b to the opposite surfaces 733a and 734a, respectively.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the front is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- the first inner surface 731a and the second inner surface 732a are magnetized to the S pole. Further, the third opposing face 733a and the fourth opposing face 734a are magnetized to the N pole.
- the main magnetic field MM F formed between the first and second magnet parts 731 and 732 and the fourth magnet part 734 is formed from the first and second inner surfaces 731a, 732a) is formed.
- the first magnet part 731 forms a negative magnetic field S.M.F in a direction from the first outer surface 731b to the first inner surface 731a.
- the second magnet part 732 forms a negative magnetic field S. M. F in a direction from the second outer surface 732b to the second inner surface 732a.
- the third and fourth magnet portions 733 and 734 form a negative magnetic field S. M. F in a direction from the opposite surfaces 733a and 734a to the opposite surfaces 733b and 734b, respectively.
- the arc path A. P is formed to face the left front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the front right is generated.
- the arc path A. P is formed to face the right side of the front along the direction of the electromagnetic force.
- an electromagnetic force in a direction toward the left of the rear is generated in the vicinity of the first fixed contact 22a.
- the arc path A. P is formed to face the left side of the rear along the direction of the electromagnetic force.
- the arc path A. P formed by the arc path forming unit 700 does not face the center C. As a result, damage to the component disposed in the central portion (C) can be prevented.
- the arc path forming units 500 , 600 , and 700 form a magnetic field inside the arc chamber 21 .
- the formed magnetic field forms electromagnetic force in various directions according to the direction of the current passed through the DC relay 1 .
- the electromagnetic force formed in the vicinity of each fixed contact (220a, 220b) is formed in a direction away from the center (C). Accordingly, the path A. P of the arc formed by the formed electromagnetic force is also formed in a direction away from the center C.
- each of the magnet parts 520 , 620 , 630 , 720 , 730 forms a main magnetic field M. M. F and a secondary magnetic field S. M. F.
- the negative magnetic field (S. M. F) formed by the single magnet is formed in the same direction as the main magnetic field (M. M. F) formed between the plurality of magnets. That is, the secondary magnetic field S. M. F is formed in a direction to strengthen the main magnetic field M. M. F.
- the strength of the magnetic field formed by the arc path forming units 500 , 600 , and 700 and the strength of the electromagnetic force generated thereby are strengthened.
- the path A. P of the generated arc can be formed more effectively.
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Abstract
Description
Claims (37)
- 내부에 공간이 형성되며, 상기 공간을 둘러싸는 복수 개의 면을 포함하는 자석 프레임; 및상기 공간에 수용되어, 상기 공간에 자기장을 형성하는 자석부를 포함하며,상기 복수 개의 면은,일 방향으로 연장 형성되는 제1 면;상기 제1 면을 마주하도록 배치되고, 상기 일 방향으로 연장 형성되는 제2 면;상기 제1 면 및 상기 제2 면과 각각 연속되며, 각각 타 방향으로 연장되고, 서로 마주하게 배치되는 제3 면 및 제4 면을 포함하고,상기 자석부는,상기 제1 면에 인접하게 위치되는 제1 자석부;상기 제2 면에 인접하게 위치되며, 상기 제1 자석부를 마주하게 배치되는 제2 자석부;상기 제3 면에 인접하게 위치되며, 상기 제3 면이 연장되는 상기 타 방향으로 나란하게 배치되는 제3 자석부 및 제4 자석부; 및상기 제4 면에 인접하게 위치되며, 상기 제4 면이 연장되는 상기 타 방향으로 나란하게 배치되는 제5 자석부 및 제6 자석부를 포함하며,상기 제1 자석부와 상기 제2 자석부가 서로 마주하는 각 일 면은 S극 및 N극 중 어느 하나의 극성(polarity)으로 자화(magnetize)되고,상기 제3 자석부 및 상기 제4 자석부가 서로 마주하는 각 일 면 및 상기 제5 자석부 및 상기 제6 자석부가 서로 마주하는 각 일 면은 S극 및 N극 중 다른 하나의 극성으로 자화되는,아크 경로 형성부.
- 제1항에 있어서,상기 공간에는 상기 일 방향으로 연장 형성되는 고정 접촉자 및 상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자가 수용되고,상기 고정 접촉자는,서로 이격되어 위치되는 제1 고정 접촉자 및 제2 고정 접촉자를 포함하며,상기 제1 자석부와 상기 제2 자석부는,상기 제1 자석부 및 상기 제2 자석부를 연결하는 가상의 선이, 상기 제1 고정 접촉자와 상기 제2 고정 접촉자를 연결하는 가상의 선과 교차되도록 배치되는,아크 경로 형성부.
- 제1항에 있어서,상기 공간에는 상기 일 방향으로 연장 형성되는 고정 접촉자 및 상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자가 수용되고,상기 제3 자석부 및 상기 제4 자석부가 서로 마주하는 상기 각 일 면은, 상기 고정 접촉자를 연장한 가상의 직선을 사이에 두고 서로 마주하게 배치되는,아크 경로 형성부.
- 제1항에 있어서,상기 공간에는 상기 일 방향으로 연장 형성되는 고정 접촉자 및 상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자가 수용되고,상기 제5 자석부 및 상기 제6 자석부가 서로 마주하는 상기 각 일 면은, 상기 고정 접촉자를 연장한 가상의 직선을 사이에 두고 서로 마주하게 배치되는,아크 경로 형성부.
- 일 방향으로 연장 형성되는 고정 접촉자;상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자;내부에 상기 고정 접촉자 및 상기 가동 접촉자를 수용하는 공간부가 형성되며, 상기 고정 접촉자와 상기 가동 접촉자가 이격되어 발생되는 아크를 유도하는 자기장을 상기 공간부에 형성하는 아크 경로 형성부를 포함하며,상기 아크 경로 형성부는,내부에 상기 공간부가 형성되며, 상기 공간부를 둘러싸는 복수 개의 면을 포함하는 자석 프레임; 및상기 공간부에 수용되어, 상기 자기장을 형성하는 자석부를 포함하며,상기 복수 개의 면은,상기 일 방향으로 연장 형성되는 제1 면;상기 공간부를 사이에 두고 상기 제1 면을 마주하도록 배치되고, 상기 일 방향으로 연장 형성되는 제2 면;상기 제1 면 및 상기 제2 면과 각각 연속되며, 각각 타 방향으로 연장되고, 상기 공간부를 사이에 두고 서로 마주하게 배치되는 제3 면 및 제4 면을 포함하고,상기 자석부는,상기 제1 면에 인접하게 위치되며, 상기 일 방향으로 연장되는 제1 자석부;상기 제2 면에 인접하게 위치되며, 상기 일 방향으로 연장되고, 상기 제1 자석부를 마주하게 배치되는 제2 자석부;상기 제3 면에 인접하게 위치되며, 상기 타 방향으로 연장되고, 상기 제1 면에 치우쳐 위치되는 제3 자석부;상기 제3 면에 인접하게 위치되며, 상기 타 방향으로 연장되고, 상기 제2 면에 치우쳐 위치되는 제4 자석부;상기 제4 면에 인접하게 위치되며, 상기 타 방향으로 연장되고, 상기 제1 면에 치우쳐 위치되는 제5 자석부; 및상기 제4 면에 인접하게 위치되며, 상기 타 방향으로 연장되고, 상기 제2 면에 치우쳐 위치되는 제6 자석부를 포함하며,상기 제1 자석부와 상기 제2 자석부가 서로 마주하는 각 일 면은 S극 및 N극 중 어느 하나의 극성으로 자화되고,상기 제3 자석부 및 상기 제4 자석부가 서로 마주하는 각 일 면 및 상기 제5 자석부 및 상기 제6 자석부가 서로 마주하는 각 일 면은 S극 및 N극 중 다른 하나의 극성으로 자화되는,직류 릴레이.
- 내부에 공간이 형성되며, 상기 공간을 둘러싸는 복수 개의 면을 포함하는 자석 프레임; 및상기 공간에 수용되어, 상기 공간에 자기장을 형성하는 자석부를 포함하며,상기 복수 개의 면은,일 방향으로 연장 형성되는 제1 면;상기 제1 면을 마주하도록 배치되고, 상기 일 방향으로 연장 형성되는 제2 면;상기 제1 면 및 상기 제2 면과 각각 연속되며, 각각 타 방향으로 연장되고, 서로 마주하게 배치되는 제3 면 및 제4 면을 포함하고,상기 자석부는,상기 제1 면에 인접하게 위치되는 제1 자석부;상기 제2 면에 인접하게 위치되며, 상기 제1 자석부를 마주하게 배치되는 제2 자석부;상기 제3 면에 인접하게 위치되며, 상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 치우쳐 위치되는 제3 자석부; 및상기 제4 면에 인접하게 위치되며, 상기 제1 면 및 상기 제2 면 중 다른 하나의 면에 치우쳐 위치되는 제4 자석부를 포함하며,상기 제1 자석부와 상기 제2 자석부가 서로 마주하는 각 일 면은 S극 및 N극 중 어느 하나의 극성으로 자화되고,상기 다른 하나의 면을 향하는 상기 제3 자석부의 일 면 및 상기 어느 하나의 면을 향하는 상기 제4 자석부의 일 면은 S극 및 N극 중 다른 하나의 극성으로 자화되는,아크 경로 형성부.
- 제6항에 있어서,상기 공간에는 상기 일 방향으로 연장 형성되는 고정 접촉자 및 상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자가 수용되고,상기 제3 자석부의 상기 일 면은,상기 고정 접촉자를 연장한 가상의 직선과 상기 어느 하나의 면 사이에 위치되는,아크 경로 형성부.
- 제6항에 있어서,상기 공간에는 상기 일 방향으로 연장 형성되는 고정 접촉자 및 상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자가 수용되고,상기 제4 자석부의 상기 일 면은,상기 고정 접촉자를 연장한 가상의 직선과 상기 다른 하나의 면 사이에 위치되는,아크 경로 형성부.
- 일 방향으로 연장 형성되는 고정 접촉자;상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자;내부에 상기 고정 접촉자 및 상기 가동 접촉자를 수용하는 공간부가 형성되며, 상기 고정 접촉자와 상기 가동 접촉자가 이격되어 발생되는 아크를 유도하는 자기장을 상기 공간부에 형성하는 아크 경로 형성부를 포함하며,상기 아크 경로 형성부는,내부에 상기 공간부가 형성되며, 상기 공간부를 둘러싸는 복수 개의 면을 포함하는 자석 프레임; 및상기 공간부에 수용되어, 상기 자기장을 형성하는 자석부를 포함하며,상기 복수 개의 면은,상기 일 방향으로 연장 형성되는 제1 면;상기 제1 면을 마주하도록 배치되고, 상기 일 방향으로 연장 형성되는 제2 면;상기 제1 면 및 상기 제2 면과 각각 연속되며, 각각 타 방향으로 연장되고, 서로 마주하게 배치되는 제3 면 및 제4 면을 포함하고,상기 자석부는,상기 제1 면에 인접하게 위치되며, 상기 일 방향으로 연장되고, 제1 자석부;상기 제2 면에 인접하게 위치되며, 상기 일 방향으로 연장되고, 상기 고정 접촉자를 사이에 두고 상기 제1 자석부를 마주하게 배치되는 제2 자석부;상기 제3 면에 인접하게 위치되며, 상기 타 방향으로 연장되고, 상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 치우쳐 위치되는 제3 자석부; 및상기 제4 면에 인접하게 위치되며, 상기 타 방향으로 연장되고, 상기 제1 면 및 상기 제2 면 중 다른 하나의 면에 치우쳐 위치되는 제4 자석부를 포함하며,상기 제1 자석부와 상기 제2 자석부가 서로 마주하는 각 일 면은 S극 및 N극 중 어느 하나의 극성으로 자화되고,상기 다른 하나의 면을 향하는 상기 제3 자석부의 일 면 및 상기 어느 하나의 면을 향하는 상기 제4 자석부의 일 면은 S극 및 N극 중 다른 하나의 극성으로 자화되는,직류 릴레이.
- 내부에 공간이 형성되며, 상기 공간을 둘러싸는 복수 개의 면을 포함하는 자석 프레임; 및상기 공간에 수용되어, 상기 공간에 자기장을 형성하는 자석부를 포함하며,상기 복수 개의 면은,일 방향으로 연장 형성되는 제1 면;상기 제1 면을 마주하도록 배치되고, 상기 일 방향으로 연장 형성되는 제2 면;상기 제1 면 및 상기 제2 면과 각각 연속되며, 각각 타 방향으로 연장되고, 서로 마주하게 배치되는 제3 면 및 제4 면을 포함하고,상기 자석부는,상기 제1 면에 인접하게 위치되는 제1 자석부;상기 제2 면에 인접하게 위치되며, 상기 제1 자석부를 마주하게 배치되는 제2 자석부; 및상기 제3 면 및 제4 면 중 어느 하나에 인접하게 위치되며, 상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 치우쳐 위치되는 제3 자석부를 포함하며,상기 제1 자석부와 상기 제2 자석부가 서로 마주하는 각 일 면 및 상기 제3 자석부의 면 중 상기 어느 하나의 면을 향하는 일 면은 서로 같은 극성으로 자화되는,아크 경로 형성부.
- 제10항에 있어서,상기 제1 자석부 및 상기 제2 자석부는 상기 일 방향으로 연장 형성되고,상기 제3 자석부는 상기 타 방향으로 연장 형성되는,아크 경로 형성부.
- 내부에 공간이 형성되며, 상기 공간을 둘러싸는 복수 개의 면을 포함하는 자석 프레임; 및상기 공간에 수용되어, 상기 공간에 자기장을 형성하는 자석부를 포함하며,상기 복수 개의 면은,일 방향으로 연장 형성되는 제1 면;상기 제1 면을 마주하도록 배치되고, 상기 일 방향으로 연장 형성되는 제2 면;상기 제1 면 및 상기 제2 면과 각각 연속되며, 각각 타 방향으로 연장되고, 서로 마주하게 배치되는 제3 면 및 제4 면을 포함하고,상기 자석부는,상기 제1 면에 인접하게 위치되는 제1 자석부;상기 제2 면에 인접하게 위치되며, 상기 제1 자석부를 마주하게 배치되는 제2 자석부;상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 인접하게 위치되며, 나란하게 배치되는 제3 자석부 및 제4 자석부; 및상기 제3 면 및 상기 제4 면 중 다른 하나의 면에 인접하게 위치되며, 상기 제3 자석부 및 상기 제4 자석부를 마주하게 배치되고, 상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 치우쳐 위치되는 제5 자석부를 포함하며,상기 제1 자석부 및 상기 제2 자석부가 서로 마주하는 각 일 면은 N극 및 S극 중 어느 하나의 극성으로 자화되고,상기 제3 자석부 및 상기 제4 자석부가 서로 마주하는 각 일 면은 N극 및 S극 중 다른 하나의 극성으로 자화되며,상기 제1 면 및 상기 제2 면 중 상기 어느 하나의 면을 향하는 상기 제5 자석부의 일 면은 N극 및 S극 중 상기 어느 하나의 극성으로 자화되는,아크 경로 형성부.
- 제12항에 있어서,상기 제3 자석부, 상기 제4 자석부 및 상기 제5 자석부는 상기 타 방향으로 연장 형성되며,상기 제5 자석부는,상기 제3 자석부 및 상기 제4 자석부 중 어느 하나와 상기 타 방향으로 겹쳐지게 배치되는,아크 경로 형성부.
- 제12항에 있어서,상기 공간에는 상기 일 방향으로 연장 형성되는 고정 접촉자 및 상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자가 수용되고,상기 제3 자석부 및 상기 제4 자석부가 서로 마주하는 상기 각 일 면은, 상기 고정 접촉자를 연장한 가상의 직선을 사이에 두고 서로 마주하게 배치되는,아크 경로 형성부.
- 제12항에 있어서,상기 공간에는 상기 일 방향으로 연장되는 고정 접촉자 및 상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자가 수용되고,상기 제1 면 및 상기 제2 면 중 다른 하나의 면을 향하는 상기 제5 자석부의 타 면은, 상기 고정 접촉자를 연장한 가상의 직선과 상기 제1 면 및 상기 제2 면 중 상기 어느 하나의 면 사이에 위치되는,아크 경로 형성부.
- 일 방향으로 연장 형성되는 고정 접촉자;상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자;내부에 상기 고정 접촉자 및 상기 가동 접촉자를 수용하는 공간부가 형성되며, 상기 고정 접촉자와 상기 가동 접촉자가 이격되어 발생되는 아크를 유도하는 자기장을 상기 공간부에 형성하는 아크 경로 형성부를 포함하며,상기 아크 경로 형성부는,내부에 상기 공간부가 형성되며, 상기 공간부를 둘러싸는 복수 개의 면을 포함하는 자석 프레임; 및상기 공간부에 수용되어, 상기 자기장을 형성하는 자석부를 포함하며,상기 복수 개의 면은,상기 일 방향으로 연장 형성되는 제1 면;상기 제1 면을 마주하도록 배치되고, 상기 일 방향으로 연장 형성되는 제2 면;상기 제1 면 및 상기 제2 면과 각각 연속되며, 각각 타 방향으로 연장되고, 서로 마주하게 배치되는 제3 면 및 제4 면을 포함하고,상기 자석부는,상기 제1 면에 인접하게 위치되며, 상기 일 방향으로 연장 형성되는 제1 자석부;상기 제2 면에 인접하게 위치되며, 상기 일 방향으로 연장 형성되고, 상기 제1 자석부를 마주하게 배치되는 제2 자석부;상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 인접하게 위치되며, 나란하게 배치되고, 상기 타 방향으로 각각 연장 형성되는 제3 자석부 및 제4 자석부; 및상기 제3 면 및 상기 제4 면 중 다른 하나의 면에 인접하게 위치되며, 상기 제3 자석부 및 상기 제4 자석부를 마주하게 배치되고, 상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 치우쳐 위치되며, 상기 타 방향으로 연장 형성되는 제5 자석부를 포함하며,상기 제1 자석부 및 상기 제2 자석부가 서로 마주하는 각 일 면은 N극 및 S극 중 어느 하나의 극성으로 자화되고,상기 제3 자석부 및 상기 제4 자석부가 서로 마주하는 각 일 면은 N극 및 S극 중 다른 하나의 극성으로 자화되며,상기 제1 면 및 상기 제2 면 중 상기 어느 하나의 면을 향하는 상기 제5 자석부의 일 면은 N극 및 S극 중 상기 어느 하나의 극성으로 자화되는,직류 릴레이.
- 내부에 공간이 형성되며, 상기 공간을 둘러싸는 복수 개의 면을 포함하는 자석 프레임; 및상기 공간에 수용되어, 상기 공간에 자기장을 형성하는 자석부를 포함하며,상기 복수 개의 면은,일 방향으로 연장 형성되는 제1 면;상기 제1 면을 마주하도록 배치되고, 상기 일 방향으로 연장 형성되는 제2 면;상기 제1 면 및 상기 제2 면과 각각 연속되며, 각각 타 방향으로 연장되고, 서로 마주하게 배치되는 제3 면 및 제4 면을 포함하고,상기 자석부는,상기 제1 면에 인접하게 위치되는 제1 자석부;상기 제2 면에 인접하게 위치되며, 상기 제1 자석부를 마주하게 배치되는 제2 자석부; 및상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 인접하게 위치되며, 나란하게 배치되는 제3 자석부 및 제4 자석부를 포함하며,상기 제1 자석부 및 상기 제2 자석부가 서로 마주하는 각 일 면은 N극 및 S극 중 어느 하나의 극성으로 자화되고,상기 제3 자석부 및 상기 제4 자석부가 서로 마주하는 각 일 면은 N극 및 S극 중 다른 하나의 극성으로 자화되는,아크 경로 형성부.
- 제17항에 있어서,상기 공간에는 상기 일 방향으로 연장 형성되는 고정 접촉자 및 상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자가 수용되고,상기 제3 자석부 및 상기 제4 자석부가 서로 마주하는 상기 각 일 면은, 상기 고정 접촉자를 연장한 가상의 직선을 사이에 두고 서로 마주하게 배치되는,아크 경로 형성부.
- 제17항에 있어서,상기 제1 자석부 및 상기 제2 자석부는 상기 일 방향으로 연장 형성되고,상기 제3 자석부 및 상기 제4 자석부는 상기 타 방향으로, 상기 제1 자석부 및 상기 제2 자석부보다 짧은 길이만큼 연장 형성되는,아크 경로 형성부.
- 일 방향으로 연장 형성되는 고정 접촉자;상기 고정 접촉자와 접촉되거나 이격되는 가동 접촉자;내부에 상기 고정 접촉자 및 상기 가동 접촉자를 수용하는 공간부가 형성되며, 상기 고정 접촉자와 상기 가동 접촉자가 이격되어 발생되는 아크를 유도하는 자기장을 상기 공간부에 형성하는 아크 경로 형성부를 포함하며,상기 아크 경로 형성부는,내부에 상기 공간부가 형성되며, 상기 공간부를 둘러싸는 복수 개의 면을 포함하는 자석 프레임; 및상기 공간부에 수용되어, 상기 자기장을 형성하는 자석부를 포함하며,상기 복수 개의 면은,상기 일 방향으로 연장 형성되는 제1 면;상기 제1 면을 마주하도록 배치되고, 상기 일 방향으로 연장 형성되는 제2 면;상기 제1 면 및 상기 제2 면과 각각 연속되며, 각각 타 방향으로 연장되고, 서로 마주하게 배치되는 제3 면 및 제4 면을 포함하고,상기 자석부는,상기 제1 면에 인접하게 위치되며, 상기 일 방향으로 연장 형성되는 제1 자석부;상기 제2 면에 인접하게 위치되며, 상기 일 방향으로 연장 형성되고, 상기 제1 자석부를 마주하게 배치되는 제2 자석부; 및상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 인접하게 위치되며, 나란하게 배치되고, 상기 타 방향으로 각각 연장 형성되는 제3 자석부 및 제4 자석부를 포함하며,상기 제1 자석부 및 상기 제2 자석부가 서로 마주하는 각 일 면은 N극 및 S극 중 어느 하나의 극성으로 자화되고,상기 제3 자석부 및 상기 제4 자석부가 서로 마주하는 각 일 면은 N극 및 S극 중 다른 하나의 극성으로 자화되는,직류 릴레이.
- 내부에 고정 접촉자 및 가동 접촉자가 수용되는 공간부가 형성된 자석 프레임;상기 자석 프레임의 상기 공간부에 위치되어, 상기 공간부에 자기장을 형성하는 복수 개의 자석부를 포함하며,상기 공간부는, 일 방향의 길이가 타 방향의 길이보다 길게 형성되고,상기 자석 프레임은,상기 일 방향으로 연장되며, 서로 마주하게 배치되어 상기 공간부의 일부를 둘러싸는 제1 면 및 제2 면; 및상기 타 방향으로 연장되며, 상기 제1 면 및 상기 제2 면과 각각 연속되고, 서로 마주하게 배치되어 상기 공간부의 나머지 일부를 둘러싸는 제3 면 및 제4 면을 포함하고,복수 개의 상기 자석부는,상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 인접하게 위치되는 제1 자석부; 및상기 제3 면 및 상기 제4 면 중 다른 하나의 면에 인접하게 위치되어, 상기 공간부를 사이에 두고 상기 제1 자석부를 마주하게 배치되는 제2 자석부를 포함하는,아크 경로 형성부.
- 제21항에 있어서,복수 개의 상기 자석부는,상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 치우쳐 위치되는 제3 자석부; 및상기 제1 면 및 상기 제2 면 중 다른 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 다른 하나의 면에 치우쳐 위치되는 제4 자석부를 포함하는,아크 경로 형성부.
- 제22항에 있어서,상기 제1 자석부의 면 중 상기 공간부를 향하는 면과, 상기 제2 자석부의 면 중 상기 공간부를 향하는 면은 같은 극성으로 자화되고,상기 제3 자석부의 면 중 상기 제3 면 및 상기 제4 면 중 상기 다른 하나의 면을 향하는 면과, 상기 제4 자석부의 면 중 상기 제3 면 및 상기 제4 면 중 상기 어느 하나의 면을 향하는 면은, 상기 극성과 다른 극성으로 자화되는,아크 경로 형성부.
- 제22항에 있어서,상기 고정 접촉자는,상기 일 방향을 따라 서로 이격되어 배치되는 제1 고정 접촉자 및 제2 고정 접촉자를 포함하며,상기 제3 자석부는,상기 제1 고정 접촉자 및 상기 제2 고정 접촉자 중 어느 하나와 상기 타 방향으로 겹쳐지게 위치되고,상기 제4 자석부는,상기 제1 고정 접촉자 및 상기 제2 고정 접촉자 중 다른 하나와 상기 타 방향으로 겹쳐지게 배치되는,아크 경로 형성부.
- 제21항에 있어서,복수 개의 상기 자석부는,상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 치우쳐 위치되는 제3 자석부;상기 제1 면 및 상기 제2 면 중 다른 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 상기 어느 하나의 면에 치우쳐 위치되는 제4 자석부; 및상기 제1 면 및 상기 제2 면 중 상기 어느 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 다른 하나의 면에 치우쳐 위치되는 제5 자석부를 포함하는,아크 경로 형성부.
- 제25항에 있어서,상기 제1 자석부의 면 중 상기 공간부를 향하는 면과, 상기 제2 자석부의 면 중 상기 공간부를 향하는 면은 같은 극성으로 자화되고,상기 제3 자석부의 면 중 상기 제3 면 및 상기 제4 면 중 상기 다른 하나의 면을 향하는 면, 상기 제4 자석부와 상기 제5 자석부가 서로 마주하는 각 면은, 상기 극성과 다른 극성으로 자화되는,아크 경로 형성부.
- 제25항에 있어서,상기 고정 접촉자는,상기 일 방향을 따라 서로 이격되어 배치되는 제1 고정 접촉자 및 제2 고정 접촉자를 포함하며,상기 제3 자석부는,상기 제1 고정 접촉자 및 상기 제2 고정 접촉자 중 어느 하나 및 상기 제4 자석부와 상기 타 방향으로 겹쳐지게 위치되고,상기 제5 자석부는,상기 제1 고정 접촉자 및 상기 제2 고정 접촉자 중 다른 하나와 상기 타 방향으로 겹쳐지게 배치되는,아크 경로 형성부.
- 제21항에 있어서,복수 개의 상기 자석부는,상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 치우쳐 위치되는 제3 자석부;상기 제1 면 및 상기 제2 면 중 상기 어느 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 다른 하나의 면에 치우쳐 위치되는 제4 자석부;상기 제1 면 및 상기 제2 면 중 다른 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 상기 어느 하나의 면에 치우쳐 위치되는 제5 자석부; 및상기 제1 면 및 상기 제2 면 중 상기 다른 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 상기 다른 하나의 면에 치우쳐 위치되는 제6 자석부를 포함하는,아크 경로 형성부.
- 제28항에 있어서,상기 제1 자석부의 면 중 상기 공간부를 향하는 면과, 상기 제2 자석부의 면 중 상기 공간부를 향하는 면은 같은 극성으로 자화되고,상기 제3 자석부와 상기 제4 자석부가 서로 마주하는 각 면 및 상기 제5 자석부와 상기 제6 자석부가 서로 마주하는 각 면은 상기 극성과 다른 극성으로 자화되는,아크 경로 형성부.
- 제28항에 있어서,상기 고정 접촉자는,상기 일 방향을 따라 서로 이격되어 배치되는 제1 고정 접촉자 및 제2 고정 접촉자를 포함하며,상기 제3 자석부는,상기 제1 고정 접촉자 및 상기 제2 고정 접촉자 중 어느 하나 및 상기 제5 자석부와 상기 타 방향으로 겹쳐지게 위치되고,상기 제4 자석부는,상기 제1 고정 접촉자 및 상기 제2 고정 접촉자 중 다른 하나 및 상기 제6 자석부와 상기 타 방향으로 겹쳐지게 위치되는,아크 경로 형성부.
- 복수 개 구비되어, 일 방향으로 서로 이격되어 위치되는 고정 접촉자;상기 고정 접촉자에 접촉되거나 이격되는 가동 접촉자;내부에 상기 고정 접촉자 및 상기 가동 접촉자가 수용되는 공간부가 형성된 자석 프레임;상기 자석 프레임의 상기 공간부에 위치되어, 상기 공간부에 자기장을 형성하는 복수 개의 자석부를 포함하며,상기 공간부는, 상기 일 방향의 길이가 타 방향의 길이보다 길게 형성되고,상기 자석 프레임은,상기 일 방향으로 연장되며, 서로 마주하게 배치되어 상기 공간부의 일부를 둘러싸는 제1 면 및 제2 면; 및상기 타 방향으로 연장되며, 상기 제1 면 및 상기 제2 면과 각각 연속되고, 서로 마주하게 배치되어 상기 공간부의 나머지 일부를 둘러싸는 제3 면 및 제4 면을 포함하고,복수 개의 상기 자석부는,상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 인접하게 위치되는 제1 자석부; 및상기 제3 면 및 상기 제4 면 중 다른 하나의 면에 인접하게 위치되어, 상기 공간부를 사이에 두고 상기 제1 자석부를 마주하게 배치되는 제2 자석부를 포함하는,직류 릴레이.
- 제31항에 있어서,복수 개의 상기 자석부는,상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 치우쳐 위치되는 제3 자석부; 및상기 제1 면 및 상기 제2 면 중 다른 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 다른 하나의 면에 치우쳐 위치되는 제4 자석부를 포함하며,상기 제3 자석부는,복수 개의 상기 고정 접촉자 중 어느 하나와 상기 타 방향으로 겹쳐지게 배치되고,상기 제4 자석부는,복수 개의 상기 고정 접촉자 중 다른 하나와 상기 타 방향으로 겹쳐지게 배치되는,직류 릴레이.
- 제32항에 있어서,상기 제1 자석부의 면 중 상기 공간부를 향하는 면과, 상기 제2 자석부의 면 중 상기 공간부를 향하는 면은 같은 극성으로 자화되고,상기 제3 자석부의 면 중 상기 제3 면 및 상기 제4 면 중 상기 다른 하나의 면을 향하는 면과, 상기 제4 자석부의 면 중 상기 제3 면 및 상기 제4 면 중 상기 어느 하나의 면을 향하는 면은, 상기 극성과 다른 극성으로 자화되는,직류 릴레이.
- 제31항에 있어서,복수 개의 상기 자석부는,상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 치우쳐 위치되는 제3 자석부;상기 제1 면 및 상기 제2 면 중 다른 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 상기 어느 하나의 면에 치우쳐 위치되는 제4 자석부; 및상기 제1 면 및 상기 제2 면 중 상기 어느 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 다른 하나의 면에 치우쳐 위치되는 제5 자석부를 포함하며,상기 제3 자석부는,복수 개의 상기 고정 접촉자 중 어느 하나 및 상기 제4 자석부와 상기 타 방향으로 겹쳐지게 배치되고,상기 제5 자석부는,복수 개의 상기 고정 접촉자 중 다른 하나와 상기 타 방향으로 겹쳐지게 배치되는,직류 릴레이.
- 제34항에 있어서,상기 제1 자석부의 면 중 상기 공간부를 향하는 면과, 상기 제2 자석부의 면 중 상기 공간부를 향하는 면은 같은 극성으로 자화되고,상기 제3 자석부의 면 중 상기 제3 면 및 상기 제4 면 중 상기 다른 하나의 면을 향하는 면, 상기 제4 자석부와 상기 제5 자석부가 서로 마주하는 각 면은, 상기 극성과 다른 극성으로 자화되는,직류 릴레이.
- 제31항에 있어서,복수 개의 상기 자석부는,상기 제1 면 및 상기 제2 면 중 어느 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 어느 하나의 면에 치우쳐 위치되는 제3 자석부;상기 제1 면 및 상기 제2 면 중 상기 어느 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 다른 하나의 면에 치우쳐 위치되는 제4 자석부;상기 제1 면 및 상기 제2 면 중 다른 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 상기 어느 하나의 면에 치우쳐 위치되는 제5 자석부; 및상기 제1 면 및 상기 제2 면 중 상기 다른 하나의 면에 인접하게 위치되며, 상기 제3 면 및 상기 제4 면 중 상기 다른 하나의 면에 치우쳐 위치되는 제6 자석부를 포함하며,상기 제3 자석부는,복수 개의 상기 고정 접촉자 중 어느 하나 및 상기 제5 자석부와 상기 타 방향으로 겹쳐지게 배치되고,상기 제4 자석부는,복수 개의 상기 고정 접촉자 중 다른 하나 및 상기 제6 자석부와 상기 타 방향으로 겹쳐지게 배치되는,직류 릴레이.
- 제36항에 있어서,상기 제1 자석부의 면 중 상기 공간부를 향하는 면과, 상기 제2 자석부의 면 중 상기 공간부를 향하는 면은 같은 극성으로 자화되고,상기 제3 자석부와 상기 제4 자석부가 서로 마주하는 각 면 및 상기 제5 자석부와 상기 제6 자석부가 서로 마주하는 각 면은 상기 극성과 다른 극성으로 자화되는,직류 릴레이.
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| CN202180032472.3A CN115735258A (zh) | 2020-05-06 | 2021-04-20 | 电弧路径形成部及包括其的直流继电器 |
| ES21800879T ES3040220T3 (en) | 2020-05-06 | 2021-04-20 | Arc path formation unit and direct current relay comprising same |
| US17/923,748 US12300453B2 (en) | 2020-05-06 | 2021-04-20 | Arc path formation unit and direct current relay comprising same |
| EP21800879.5A EP4148760B1 (en) | 2020-05-06 | 2021-04-20 | Arc path formation unit and direct current relay comprising same |
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| KR1020200079598A KR102452356B1 (ko) | 2020-06-29 | 2020-06-29 | 아크 경로 형성부 및 이를 포함하는 직류 릴레이 |
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| EP4148760B1 (en) | 2025-07-23 |
| US20230260728A1 (en) | 2023-08-17 |
| EP4148760A4 (en) | 2024-06-05 |
| US12300453B2 (en) | 2025-05-13 |
| ES3040220T3 (en) | 2025-10-29 |
| EP4148760A1 (en) | 2023-03-15 |
| CN115735258A (zh) | 2023-03-03 |
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