CN210516632U - High-voltage direct-current contactor arc extinguishing chamber and contactor thereof - Google Patents
High-voltage direct-current contactor arc extinguishing chamber and contactor thereof Download PDFInfo
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- CN210516632U CN210516632U CN201921595413.3U CN201921595413U CN210516632U CN 210516632 U CN210516632 U CN 210516632U CN 201921595413 U CN201921595413 U CN 201921595413U CN 210516632 U CN210516632 U CN 210516632U
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- arc
- arc extinguishing
- contact
- inner shell
- extinguishing
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- 238000005192 partition Methods 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a high voltage direct current contactor arc-extinguishing cover and contactor thereof, its arc-extinguishing cover can be separated and bear the electric arc of any one point in the arc-extinguishing chamber and burn, and can quick arc extinguishing, including the arc-extinguishing chamber, the groove of stepping down, the first contact of contactor is with first leading electrical pillar, second contact and second lead electrical pillar contact conducting part and all be located the arc-extinguishing intracavity, and is provided with the several arc extinguishing arch on the arc-extinguishing intracavity wall, constitutes the arc-extinguishing groove between two arc extinguishing archs, the arc extinguishing arch all has the setting on arc-extinguishing intracavity wall a week. The arc extinguishing cover of the utility model adopts the three-dimensional design, can greatly reduce the burning of the electric arc to the plastic cavity, thereby prolonging the service life of the product.
Description
Technical Field
The utility model relates to a contactor especially relates to a high voltage direct current contactor arc-extinguishing chamber and contactor thereof.
Background
The DC contactor is a high-power switch electric appliance which remotely operates a circuit (closing, opening or switching) through low current and low voltage, and mainly comprises two parts: electrical contact systems (moving and stationary contacts) and electromagnetic systems. And the structure mostly adopts a double-breakpoint bridge contact and a solenoid suction type magnetic system.
The existing direct current contactor is basically not provided with ceramic arc extinguishing, even the direct current contactor is provided with simple sheets, because the electric arc is sprayed, and the sheets can only solve the problem of single-direction electric arc burning.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects of the prior art, the technical problem to be solved in the present invention is to provide an arc extinguishing chamber for a high voltage direct current contactor and a contactor thereof, wherein the arc extinguishing chamber can be used for releasing any one point of arc burning in the arc extinguishing chamber and rapidly extinguishing the arc.
In order to realize the above-mentioned purpose, the utility model provides a high voltage direct current contactor arc-extinguishing cover, it is installed on the contactor, including the arc-extinguishing chamber, the groove of stepping down, the first contact of contactor is with first leading electrical pillar, second contact and second lead electrical pillar contact conducting part and all be located the arc-extinguishing intracavity, and be provided with the several arc extinguishing arch on the arc-extinguishing intracavity wall, constitute the arc-extinguishing groove between two arc extinguishing archs, the arc extinguishing arch all has the setting on arc-extinguishing intracavity wall a week.
Preferably, the arc chute is made of an insulating, heat-resistant ceramic.
Preferably, a buckle groove is formed in the outer wall of the arc extinguishing cover, the buckle groove is fixed with a fixing piece part of the elastic clamping piece, the fixing piece part is further fixedly connected with one end of the elastic piece part, the other end of the elastic piece part is fixedly connected with the arc head part, and the outer wall of the arc head part is an arc-shaped clamping arc surface;
the elastic sheet part has elasticity, is provided with the chucking recess with chucking cambered surface chucking assembly on the arc extinguishing baffle of contactor, be provided with on the inside top surface of chucking recess by its blind end to ascending direction cambered surface of open end slope gradually, the chucking cambered surface compresses tightly the contact with the direction cambered surface.
Preferably, the fixing piece portion, the elastic piece portion and the arc head portion are formed by bending elastic metal plate.
The utility model also discloses a contactor, including the shell, the shell is inside to be the inner chamber, installs the inner shell in the inner chamber, and shell open-top, opening part are sealed through the roof, and inner shell open-top, opening part are sealed through the arc extinguishing frame, still are provided with the arc extinguishing baffle on the arc extinguishing frame, install the magnet steel between inner shell inner wall and the arc extinguishing baffle;
the bottom of the arc extinguishing partition plate is clamped and assembled with the inner shell partition plate, the inner shell partition plate is assembled with the inner shell supporting plate and the support cylinder into a whole, and a magnetic insulation cover is arranged between the outer wall of the support cylinder and the inner wall of the inner shell and used for insulating a magnetic field;
the coil is arranged on the inner side of the support cylinder, the iron core is arranged on the inner side of the coil and fixed at one end of the driving rod, the iron core is made of iron materials, the coil generates a magnetic field after being electrified, and the magnetic field can drive the iron core to reciprocate in the axial direction of the iron core and is similar to a telescopic electromagnet;
the other end of the driving rod penetrates through the inner shell supporting plate and the inner shell partition plate and then is assembled and fixed with the current conducting plate, the driving rod is made of an insulating material, and the driving rod can axially slide relative to the inner shell supporting plate and the inner shell partition plate;
two contact chambers are cut apart out through the arc extinguishing baffle to the arc extinguishing frame, install an arc extinguishing cover in every contact chamber, and two contact chambers are packed into respectively after the groove of stepping down of two arc extinguishing covers is passed respectively at the current conducting plate both ends, and install first contact, second contact on the part of packing into two contact chambers respectively, and first contact, second contact and current conducting plate are electrically conductive to be connected, first contact, second contact connect electric post one end terminal surface just and can connect electric post, this end surface contact of second electricity post with first electricity respectively with first electricity.
Preferably, the inner shell partition plate is provided with a clamping protrusion which is clamped into a clamping groove on the inner shell support plate, so that the inner shell partition plate and the inner shell support plate are clamped and assembled;
the inner side of the clamping protrusion is provided with an inserting ring groove, the clamping groove and the inserting ring are clamped and assembled, and the inserting ring extrudes the clamping protrusion to the inner wall of the clamping groove, so that the inserting ring, the inner shell supporting plate and the inner shell partition plate are clamped and assembled into a whole; the plug ring is arranged at the top of the bracket barrel.
Preferably, the other ends of the first electric connecting post and the second electric connecting post penetrate through the top plate and then are in conductive connection with an external lead, wherein one of the first electric connecting post and the second electric connecting post is in conductive connection with a power supply, and the other one of the first electric connecting post and the second electric connecting post is in conductive connection with electric equipment.
The utility model has the advantages that: the arc extinguishing cover of the utility model adopts the three-dimensional design, can greatly reduce the burning of the electric arc to the plastic cavity, thereby prolonging the service life of the product.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view B-B of fig. 1.
Figure 3 is the structure schematic diagram of the arc extinguishing chamber of the utility model.
Figure 4 is the structural schematic diagram of the arc extinguishing chamber of the utility model.
Fig. 5 is a sectional view a-a in fig. 4.
Fig. 6 is a schematic structural diagram of the elastic fastener of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 to 5, the contactor of the present embodiment includes an outer shell 110, an inner cavity 111 is formed inside the outer shell 110, an inner shell 120 is installed in the inner cavity 111, an opening of the top of the outer shell 110 is sealed by a top plate 130, an opening of the top of the inner shell 120 is sealed by an arc extinguishing frame 140, the arc extinguishing frame 140 is further provided with an arc extinguishing partition 141, a magnetic steel 220 is installed between the inner wall of the inner shell 120 and the arc extinguishing partition 141, the magnetic steel 220 is used for generating a magnetic field, so that a generated arc is blown to an arc extinguishing cover 300 through the magnetic field, and the arc is rapidly;
the bottom of the arc extinguishing partition plate 141 is clamped and assembled with the inner shell partition plate 150, the clamping protrusion 151 is arranged on the inner shell partition plate 150, and the clamping protrusion 151 is clamped and assembled in the clamping groove 161 on the inner shell supporting plate 160, so that the clamping assembly of the inner shell partition plate 150 and the inner shell supporting plate 160 is realized;
the inner side of the clamping protrusion 151 is provided with an inserting ring groove, the clamping groove is clamped and assembled with the inserting ring 171, and the inserting ring 171 extrudes the clamping protrusion 151 to the inner wall of the clamping groove 161, so that the inserting ring 171, the inner shell supporting plate 160 and the inner shell partition plate 150 are assembled into a whole;
the plug-in ring 171 is arranged at the top of the bracket barrel 170, a magnetic insulation cover 430 is arranged between the outer wall of the bracket barrel 170 and the inner wall of the inner shell 120, and the magnetic insulation cover 430 is used for insulating a magnetic field;
the coil 230 is installed on the inner side of the bracket cylinder 170, the iron core 420 is installed on the inner side of the coil 230, the iron core 420 is fixed on one end of the driving rod 410, the iron core 420 is made of iron materials, the coil 230 generates a magnetic field after being electrified, and the magnetic field can drive the iron core to reciprocate in the axial direction of the iron core, and is similar to a telescopic electromagnet;
the other end of the driving rod 410 penetrates through the inner shell supporting plate 160 and the inner shell partition plate 150 and then is assembled and fixed with the conductive plate 220, the driving rod 410 is made of an insulating material, and the driving rod 410 can axially slide relative to the inner shell supporting plate 160 and the inner shell partition plate 150;
the arc extinguishing frame 140 is divided into two contact cavities 142 by an arc extinguishing partition plate 141, an arc extinguishing cover 300 is installed in each contact cavity 142, two ends of the conductive plate 220 respectively penetrate through the abdicating grooves 301 of the two arc extinguishing covers and then are respectively installed in the two contact cavities 142, a first contact 221 and a second contact 222 are respectively installed on the parts installed in the two contact cavities 142, the first contact 221 and the second contact 222 are electrically connected with the conductive plate 220, the first contact 221 and the second contact 222 are respectively opposite to the end faces of one ends of the first electric connecting column 211 and the second electric connecting column 212 and can be electrically connected with the end faces of the first electric connecting column 211 and the second electric connecting column 212 in a contact manner, and therefore current conduction of the first electric connecting column 211 and the second electric connecting column 212 is achieved, namely the basic function of the contactor.
The other ends of the first electric connecting post 211 and the second electric connecting post 212 penetrate through the top plate 130 and then are in conductive connection with an external conducting wire, wherein one of the first electric connecting post 211 and the second electric connecting post 212 is in conductive connection with a power supply, and the other one of the first electric connecting post 211 and the second electric connecting post 212 is in conductive connection with electric equipment, so that the function of switching is realized through the contactor, the coil is electrically connected with direct current, a magnetic field is generated in the coil through direct current, the directions of the magnetic fields generated by the direct current in different directions are different, and the coil can drive the iron core to push the conducting plate to the first conducting post or pull.
The inside arc-extinguishing chamber 302 that is of arc-extinguishing chamber 300, first contact 221 and first electrically conductive post 211, second contact 222 and the second electrically conductive post 212 contact conducting part all are located arc-extinguishing chamber 302, and are provided with the protruding 310 of several arc extinguishing on the arc-extinguishing chamber 302 inner wall, constitute arc-extinguishing groove 311 between two arc extinguishing archs 310, the arc extinguishing arch all has the setting on arc-extinguishing chamber 302 inner wall a week. When the arc extinguishing device is used, the magnetic field generated by the magnetic steel pulls the arc to the arc extinguishing protrusion 310, and the arc is divided into a plurality of small arcs by the arc extinguishing protrusion 310 and enters each arc extinguishing groove 311 to be separated, so that the arc is quickly extinguished.
The arc extinguishing cover is made of insulating and heat-resistant ceramics, in the embodiment, the arc extinguishing cover is located at a position where the first contact 221 and the first conductive column 211, and the second contact 222 and the second conductive column 212 contact the conductive part for a circle (three-dimensional design), so that an arc cannot directly contact the arc extinguishing partition 141, the arc extinguishing frame 140 is made of heat-resistant and flame-retardant plastics, but the heat generated by the arc is very high, and once the arc extinguishing frame is in contact with the arc extinguishing frame 140, the arc extinguishing frame 140 is likely to be directly burnt or deformed, and thus the contactor failure is caused. The arc extinguishing cover of the embodiment is made of insulating and heat-resistant ceramics, and can bear higher burning temperature, thereby protecting the arc extinguishing frame 140 and prolonging the service life of the arc extinguishing frame 140.
The design of the relief groove 301 on the arc chute 300 can avoid affecting the movement of the conductive plate 220, but does not impair the arc extinguishing performance of the arc chute.
Referring to fig. 6, in the actual assembling and fixing process, the arc extinguishing frame 140 is mainly adopted to compress the arc extinguishing chamber 300 in the contact cavity 142, but since the arc extinguishing chamber is often burned and heat is transmitted to the arc extinguishing frame 140 for a long time, the arc extinguishing frame is easily deformed, so that the binding force on the arc extinguishing chamber is invalid, at this time, the moving of the conducting strip is likely to drive the arc extinguishing chamber to move, the use is seriously affected, and particularly, the conducting strip is likely to be inseparable from the first conducting column and the second conducting column to form a fault. To this end, the applicant made the following improvements:
the outer wall of the arc extinguishing cover 300 is provided with a buckle groove 303, the buckle groove 303 and a fixing piece part 510 of the elastic clamping piece 500 are fixed through gluing, the fixing piece part 510 is also fixedly connected with one end of an elastic piece part 520, the other end of the elastic piece part 520 is fixedly connected with an arc head part 530, and the outer wall of the arc head part 530 is an arc-shaped clamping arc surface 531;
the elastic piece portion 520 has elasticity, and in the embodiment, the fixing piece portion 510, the elastic piece portion 520 and the arc-shaped head portion 530 are formed by bending an elastic metal plate.
The arc extinguishing partition 141 is provided with a clamping groove 1411 in clamping assembly with the clamping cambered surface 531, the top surface inside the clamping groove 1411 is provided with a guide cambered surface 1412 which is gradually inclined upwards from the closed end to the open end, and the clamping cambered surface 531 is in pressing contact with the guide cambered surface 1412.
During initial state, chucking cambered surface 531 compresses tightly the assembly with guiding cambered surface 1412 near chucking recess 1411 blind end one end, in case the arc extinguishing rack takes place to warp, arc head part 530 rotates to stationary blade part 510 under the effect of elastic force of elastic sheet part 520, thereby make chucking cambered surface 531 and guiding cambered surface 1412 be close to chucking recess 1411 open end and compress tightly, this has just realized the automatic fine setting function, thereby guarantee that the arc extinguishing chamber is compressed tightly in the contact chamber all the time, and the arc extinguishing rack is generally fixed on the inner shell through the screw, consequently, can guarantee the relatively fixed of arc extinguishing chamber position.
The details of the present invention are well known to those skilled in the art.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. The utility model provides a high voltage direct current contactor arc-extinguishing chamber, its installs on the contactor, characterized by: including the arc extinguishing chamber, the groove of stepping down, the first contact of contactor is with first leading electrical pillar, second contact and the second is led electrical pillar contact conducting part and all is located the arc extinguishing intracavity, and is provided with the several arc extinguishing arch on the arc extinguishing intracavity wall, constitutes the arc extinguishing groove between two arc extinguishing archs, the arc extinguishing arch all has the setting on arc extinguishing intracavity wall a week.
2. The arc chute of claim 1, further comprising: the arc extinguishing chamber is made of insulating and heat-resistant ceramics.
3. The arc chute of claim 1 or 2, characterized in that: the outer wall of the arc extinguishing cover is provided with a buckle groove, the buckle groove is fixed with a fixing piece part of the elastic clamping piece, the fixing piece part is also fixedly connected with one end of the elastic piece part, the other end of the elastic piece part is fixedly connected with the arc head part, and the outer wall of the arc head part is an arc-shaped clamping arc surface;
the elastic sheet part has elasticity, is provided with the chucking recess with chucking cambered surface chucking assembly on the arc extinguishing baffle of contactor, be provided with on the inside top surface of chucking recess by its blind end to ascending direction cambered surface of open end slope gradually, the chucking cambered surface compresses tightly the contact with the direction cambered surface.
4. The arc chute of claim 3, characterized in that: the fixing piece part, the elastic piece part and the arc head part are formed by bending elastic metal plate.
5. A contactor, comprising a housing, characterized in that: the inner cavity is arranged in the outer shell, an opening at the top of the outer shell and the opening are sealed by a top plate, an opening at the top of the inner shell is sealed by an arc extinguishing frame, the arc extinguishing frame is also provided with an arc extinguishing partition plate, and magnetic steel is arranged between the inner wall of the inner shell and the arc extinguishing partition plate;
the bottom of the arc extinguishing partition plate is clamped and assembled with the inner shell partition plate, the inner shell partition plate is assembled with the inner shell supporting plate and the support cylinder into a whole, and a magnetic insulation cover is arranged between the outer wall of the support cylinder and the inner wall of the inner shell and used for insulating a magnetic field;
the coil is arranged on the inner side of the support cylinder, the iron core is arranged on the inner side of the coil and fixed at one end of the driving rod, the iron core is made of iron materials, the coil generates a magnetic field after being electrified, and the magnetic field can drive the iron core to reciprocate in the axial direction of the iron core and is similar to a telescopic electromagnet;
the other end of the driving rod penetrates through the inner shell supporting plate and the inner shell partition plate and then is assembled and fixed with the current conducting plate, the driving rod is made of an insulating material, and the driving rod can axially slide relative to the inner shell supporting plate and the inner shell partition plate;
two contact chambers are cut apart out through the arc extinguishing baffle to the arc extinguishing frame, install an arc extinguishing cover in every contact chamber, and two contact chambers are packed into respectively after the groove of stepping down of two arc extinguishing covers is passed respectively at the current conducting plate both ends, and install first contact, second contact on the part of packing into two contact chambers respectively, and first contact, second contact and current conducting plate are electrically conductive to be connected, first contact, second contact connect electric post one end terminal surface just and can connect electric post, this end surface contact of second electricity post with first electricity respectively with first electricity.
6. The contactor as claimed in claim 5, wherein: the inner shell partition plate is provided with a clamping protrusion which is clamped into a clamping groove on the inner shell supporting plate, so that the inner shell partition plate and the inner shell supporting plate are clamped and assembled;
the inner side of the clamping protrusion is provided with an inserting ring groove, the clamping groove and the inserting ring are clamped and assembled, and the inserting ring extrudes the clamping protrusion to the inner wall of the clamping groove, so that the inserting ring, the inner shell supporting plate and the inner shell partition plate are clamped and assembled into a whole; the plug ring is arranged at the top of the bracket barrel.
7. A contactor according to claim 6 or 5, characterized in that: the other ends of the first electric connecting post and the second electric connecting post penetrate through the top plate and then are in conductive connection with an external lead, wherein one of the first electric connecting post and the second electric connecting post is in conductive connection with a power supply, and the other one of the first electric connecting post and the second electric connecting post is in conductive connection with electric equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921595413.3U CN210516632U (en) | 2019-09-24 | 2019-09-24 | High-voltage direct-current contactor arc extinguishing chamber and contactor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921595413.3U CN210516632U (en) | 2019-09-24 | 2019-09-24 | High-voltage direct-current contactor arc extinguishing chamber and contactor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210516632U true CN210516632U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921595413.3U Active CN210516632U (en) | 2019-09-24 | 2019-09-24 | High-voltage direct-current contactor arc extinguishing chamber and contactor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210516632U (en) |
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2019
- 2019-09-24 CN CN201921595413.3U patent/CN210516632U/en active Active
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