JP7711031B2 - Electromagnetic operated switchgear - Google Patents
Electromagnetic operated switchgearInfo
- Publication number
- JP7711031B2 JP7711031B2 JP2022097894A JP2022097894A JP7711031B2 JP 7711031 B2 JP7711031 B2 JP 7711031B2 JP 2022097894 A JP2022097894 A JP 2022097894A JP 2022097894 A JP2022097894 A JP 2022097894A JP 7711031 B2 JP7711031 B2 JP 7711031B2
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- JP
- Japan
- Prior art keywords
- plunger
- electromagnetically operated
- fixed
- coil
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/10—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current
- H01F7/11—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current reducing or eliminating the effects of eddy currents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
- H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/38—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Electromagnets (AREA)
Description
本発明は電磁操作式開閉装置に係り、特に、電磁操作装置の電磁力を利用して開閉器の接点を入り切りするものに好適な電磁操作式開閉装置に関する。 The present invention relates to an electromagnetically operated switching device, and in particular to an electromagnetically operated switching device that is suitable for opening and closing the contacts of a switch using the electromagnetic force of an electromagnetically operated device.
この種の技術分野における先行技術文献としては、特許文献１に記載された開閉装置を挙げることができる。 An example of a prior art document in this technical field is the opening and closing device described in Patent Document 1.
この特許文献１には、２つのコイルにパルス電流を供給し、電磁駆動による開閉動作を行う開閉装置において、電磁駆動を高効率、高速に行うと共に、開閉極用の電源の小容量化を実現する開閉装置を提供するために、接離自在な固定電極と可動電極から構成されるスイッチ部と、可動電極に連なる可動軸と可動コイルの間に磁性体を介して固定される可動部と、この可動部に対向して配置された固定コイルの内径側に磁性体を配置した固定部とを備えることにより、各コイル間の発生磁界の増大及び高速な立ち上がりを可能にした開閉装置が記載されている。 This patent document 1 describes an opening and closing device that supplies a pulse current to two coils and performs opening and closing operations by electromagnetic drive, and that provides an opening and closing device that performs electromagnetic drive at high efficiency and high speed while also realizing a small capacity power supply for the opening and closing poles.The device is equipped with a switch section consisting of a fixed electrode and a movable electrode that can be moved in and out of contact, a movable section that is fixed between the movable shaft connected to the movable electrode and the movable coil via a magnetic body, and a fixed section in which a magnetic body is arranged on the inner diameter side of the fixed coil arranged opposite the movable section, thereby enabling an increase in the magnetic field generated between the coils and a fast rise time.
上述した特許文献１に記載されている電磁駆動装置においては、コイルに通電した時に鉄心内部に発生する渦電流を抑制するために設けた複数のスリットは、可動鉄心と固定鉄心の接触部から各々の鉄心の接触部とは反対側まで軸方向に貫通した構成、又は内径側からのスリットと外径側のスリットが繋がっている構成になっている。 In the electromagnetic drive device described in Patent Document 1 mentioned above, the multiple slits provided to suppress eddy currents that occur inside the core when electricity is passed through the coil are configured to penetrate axially from the contact points between the movable core and the fixed core to the opposite side of the contact points of each core, or the slits from the inner diameter side are connected to the slits on the outer diameter side.
この電磁駆動装置は、コイル通電により可動鉄心が高速動作して固定鉄心に衝突するが、スリットは複数設けているため、鉄心の機械的強度が低下してしまい、衝突による衝撃力で各々の鉄心に設けたスリットが変形し、最終的にスリットが潰れてしまう可能性がある。スリットが潰れてスリット溝がなくなると鉄心内部の渦電流を抑制できず、動作速度が低下する。 In this electromagnetic drive device, the movable iron core moves at high speed when current is applied to the coil, causing it to collide with the fixed iron core. However, because there are multiple slits, the mechanical strength of the iron core is reduced, and the impact force of the collision can cause the slits in each iron core to deform, eventually resulting in the slits being crushed. If the slits are crushed and the slit grooves disappear, the eddy currents inside the iron core cannot be suppressed, and the operating speed decreases.
この対策としては、スリット数を減らして鉄心の機械的強度を確保するか、又はスリットが潰れても溝が接触しないように溝幅を大きくするか、或いは鉄心のサイズを大きくして機械的強度を確保することが考えられるが、いずれの場合も、装置の大形化や動作速度低下となるため、一得一失の関係となる。 Possible solutions to this problem are to reduce the number of slits to ensure the mechanical strength of the core, or to increase the width of the grooves so that they do not come into contact even if the slits are crushed, or to increase the size of the core to ensure mechanical strength, but in any case, the device will become larger and its operating speed will decrease, so there are pros and cons.
本発明上述の点に鑑みなされたもので、その目的とするところは、鉄心の機械的強度の低下を抑制できると共に、鉄心の大形化を抑制できる電磁操作式開閉装置を提供することにある。 The present invention has been made in consideration of the above points, and its purpose is to provide an electromagnetically operated opening and closing device that can prevent the deterioration of the mechanical strength of the iron core and prevent the iron core from becoming too large.
本発明の電磁操作式開閉装置は、上記目的を達成するために、コイルと固定鉄心が固定されている固定平板と、前記コイルを貫通するプランジャと、該プランジャが接続され、該プランジャと共に軸方向に移動する駆動ロッドと、前記コイルの上部に配置された永久磁石と、を備え、前記コイルを励磁して前記プランジャを吸引し、前記プランジャと前記固定鉄心との対向面に前記永久磁石が発生する磁束を流して前記プランジャの吸引状態を保持すると共に、前記プランジャの吸引時と逆方向の電流を前記コイルに流して前記プランジャの吸引状態を釈放する電磁操作式開閉装置であって、周方向に所定間隔を持ち、かつ、相対向して配置されている前記プランジャと前記固定鉄心との少なくとも一方の接触部側に、外周側から前記駆動ロッド側に渡ってスリットが設けられ、かつ、前記スリットは、前記駆動ロッド側が浅く、外周側が深く形成されていることを特徴とする。 To achieve the above object, the electromagnetically operated opening/closing device of the present invention comprises a fixed plate to which a coil and a fixed core are fixed, a plunger penetrating the coil, a drive rod to which the plunger is connected and which moves in the axial direction together with the plunger, and a permanent magnet arranged on the upper part of the coil, and is an electromagnetically operated opening/closing device that magnetizes the coil to attract the plunger, and maintains the attracted state of the plunger by passing a magnetic flux generated by the permanent magnet on the opposing surface between the plunger and the fixed core, and releases the attracted state of the plunger by passing a current through the coil in the opposite direction to that when the plunger is attracted, and is characterized in that a slit is provided from the outer periphery to the drive rod side on at least one of the contact parts between the plunger and the fixed core, which are arranged at a predetermined interval in the circumferential direction and opposed to each other, and the slit is shallow on the drive rod side and deep on the outer periphery side.
本発明によれば、鉄心の機械的強度の低下を抑制でき、鉄心の大形化を抑制できる電磁操作式開閉装置を得ることができる。 The present invention provides an electromagnetically operated opening and closing device that can prevent the mechanical strength of the core from decreasing and prevent the core from becoming too large.
以下、図示した実施例に基づいて本発明の電磁操作式開閉装置を説明する。なお、各実施例において、同一構成部品には同符号を使用する。 The electromagnetically operated opening and closing device of the present invention will be described below based on the illustrated embodiment. Note that the same reference numerals are used for the same components in each embodiment.
図１、図２、図３及び図４に、本発明の電磁操作式開閉装置の実施例１を示す。 Figures 1, 2, 3, and 4 show embodiment 1 of the electromagnetically operated opening and closing device of the present invention.
図１は、実施例１の電磁操作式開閉装置における操作機構部を側面から見た断面図であり、固定鉄心１とプランジャ２が接触していない状態を示し、図２は、同じく実施例１の電磁操作式開閉装置における操作機構部を側面から見た断面図であり、固定鉄心１とプランジャ２が接触している状態を示し、図３は、プランジャ２の側面図を、図４は、プランジャ２の下面図を示している。 Figure 1 is a cross-sectional side view of the operating mechanism in the electromagnetically operated switching device of the first embodiment, showing a state in which the fixed core 1 and plunger 2 are not in contact, Figure 2 is a cross-sectional side view of the operating mechanism in the electromagnetically operated switching device of the first embodiment, showing a state in which the fixed core 1 and plunger 2 are in contact, Figure 3 shows a side view of the plunger 2, and Figure 4 shows a bottom view of the plunger 2.
図１及び図２に示すように、本実施例の電磁操作式開閉装置における操作機構部は、固定鉄心１と、プランジャ２と、永久磁石３と、コイル４と、第１の固定平板５と、第２の固定平板６と、第３の固定平板７と、可動平板８と、第１の円筒鉄心９と、第２の円筒鉄心１０と、これらの軸上に配置される駆動ロッド１１とから概略構成されている。 As shown in Figures 1 and 2, the operating mechanism of the electromagnetically operated opening and closing device of this embodiment is roughly composed of a fixed core 1, a plunger 2, a permanent magnet 3, a coil 4, a first fixed plate 5, a second fixed plate 6, a third fixed plate 7, a movable plate 8, a first cylindrical core 9, a second cylindrical core 10, and a drive rod 11 arranged on the axis of these.
第１の円筒鉄心９は第１の固定平板５と第２の固定平板６に挟持され、第２の円筒鉄心１０は第２の固定平板６と第３の固定平板７に挟持され、駆動ロッド１１にはプランジャ２と可動平板８が接続されている。 The first cylindrical core 9 is sandwiched between the first fixed flat plate 5 and the second fixed flat plate 6, the second cylindrical core 10 is sandwiched between the second fixed flat plate 6 and the third fixed flat plate 7, and the plunger 2 and the movable flat plate 8 are connected to the drive rod 11.
なお、駆動ロッド１１の材質はステンレスなどの非磁性体、永久磁石３はネオジム系磁石など非常に高い磁力を持つ磁石、その他は鉄鋼材などの磁性体で概略構成される。 The drive rod 11 is made of a non-magnetic material such as stainless steel, the permanent magnet 3 is a magnet with very high magnetic force such as a neodymium magnet, and the rest is generally made of magnetic materials such as steel.
そして、図示しない操作機構部外部の制御基板などから投入指令が入力されると、電磁石のコイル４が通電され、コイル４の周囲には、プランジャ２→固定鉄心１→第３の固定平板７→第２の円筒鉄心１０→第２の固定平板６→プランジャ２の経路で磁界が形成され、その磁界により、プランジャ２には下向きの吸引力が働き、プランジャ２が駆動ロッド１１と共に固定鉄心１側に移動し、プランジャ２が固定鉄心１に吸着される。 When a closing command is input from a control board or the like outside the operating mechanism (not shown), the coil 4 of the electromagnet is energized, and a magnetic field is formed around the coil 4 along the path of the plunger 2 → fixed core 1 → third fixed plate 7 → second cylindrical core 10 → second fixed plate 6 → plunger 2. This magnetic field exerts a downward attractive force on the plunger 2, moving the plunger 2 toward the fixed core 1 together with the drive rod 11, and the plunger 2 is attracted to the fixed core 1.
このとき、永久磁石３によって形成される磁界の向きもコイル４の励磁に伴って発生する磁界の向きと同じになるため、吸引力が高められた状態でプランジャ２が固定鉄心１側に移動する。プランジャ２と固定鉄心１が接触した状態（図２の状態）が、開閉器の投入状態となる。 At this time, the magnetic field formed by the permanent magnet 3 is oriented in the same direction as the magnetic field generated by the excitation of the coil 4, so the plunger 2 moves toward the fixed core 1 with increased attraction force. The state in which the plunger 2 and the fixed core 1 come into contact (the state shown in FIG. 2) is the closed state of the switch.
次に、図示しない外部の制御基板から開極指令が入力され、制御基板からコイル４に開極指令に伴う信号が入力されると、コイル４には投入時とは逆方向の電流が流れ、コイル４の周囲には投入動作時とは逆方向の磁界が形成される。 Next, an opening command is input from an external control board (not shown), and when a signal associated with the opening command is input from the control board to coil 4, a current flows through coil 4 in the opposite direction to when the switch is turned on, and a magnetic field is formed around coil 4 in the opposite direction to when the switch is turned on.
この場合、コイル４から発生する磁束と永久磁石３から発生する磁束とが互いに打ち消し合い、プランジャ２の軸方向における吸引力は上向きとなり、プランジャ２が固定鉄心１から離間して駆動ロッド１１と共に上方向に移動する。このプランジャ２の移動に伴って駆動ロッド１１が上方に移動すると、これに連動して開閉器の開極動作が行われ、所定の位置で停止して開極状態となる。 In this case, the magnetic flux generated by the coil 4 and the magnetic flux generated by the permanent magnet 3 cancel each other out, the attractive force in the axial direction of the plunger 2 is directed upward, and the plunger 2 moves upward together with the driving rod 11, moving away from the fixed core 1. When the driving rod 11 moves upward in conjunction with this movement of the plunger 2, the contact opening operation of the switch is performed in conjunction with this, and the switch stops at a predetermined position to enter the open state.
ここで、制御基板からの投入指令や開極指令によりコイル４に通電する電流は、時間と共に大きさが変化する過渡電流であり、プランジャ２や固定鉄心１などの磁路が形成される磁性体の部品内部の磁束も時間と共に変化する。 The current that flows through the coil 4 in response to the closing command or opening command from the control board is a transient current whose magnitude changes over time, and the magnetic flux inside the magnetic components that form the magnetic path, such as the plunger 2 and the fixed core 1, also changes over time.
この時間と共に変化する磁束により、磁性体内部に渦電流が発生し、渦電流による磁束磁界は磁路を妨げる方向に発生する。渦電流で発生した磁界は、コイル通電による磁界を妨げ、動作を遅くする要因になる。 This time-varying magnetic flux generates eddy currents inside the magnetic material, and the magnetic flux magnetic field caused by the eddy currents is generated in a direction that obstructs the magnetic path. The magnetic field generated by the eddy currents obstructs the magnetic field caused by the current passing through the coil, causing the operation to slow down.
そこで、実施例１では、周方向に所定間隔を持ち、かつ、相対向して配置されているプランジャ２と固定鉄心１との夫々の接触部側に、外周側から駆動ロッド１１側に渡ってプランジャ２側のスリット２ａと固定鉄心１側のスリット１ａが設けられ（図１及び図２に示した斜線部がスリット２ａ及び１ａになる）、しかも、このプランジャ２側のスリット２ａと固定鉄心１側のスリット１ａは、駆動ロッド１１側が浅く（斜線部が軸方向に短く）、外周側が深く（斜線部が軸方向に長く）形成されている。 Therefore, in the first embodiment, the plunger 2 and fixed core 1 are spaced apart from each other in the circumferential direction, and slits 2a on the plunger 2 side and slits 1a on the fixed core 1 side are provided from the outer periphery to the drive rod 11 side at the contact points between the plunger 2 and fixed core 1 (the shaded areas in Figures 1 and 2 are slits 2a and 1a), and the slits 2a on the plunger 2 side and slits 1a on the fixed core 1 side are shallower on the drive rod 11 side (the shaded areas are shorter in the axial direction) and deeper on the outer periphery side (the shaded areas are longer in the axial direction).
このようなスリット１ａ及び２ａを設けた固定鉄心１及びプランジャ２は、開閉器の投入動作で固定鉄心１とプランジャ２に衝突しても、スリット１ａ及び２ａは、駆動ロッド１１側が浅く形成されているため、駆動ロッド１１側の機械的強度の低下が外周側に比べて抑制できるため、スリット１ａ及び２ａの変形量を抑制することができ、鉄心の大形化を抑制できる。 When the fixed core 1 and plunger 2 are provided with such slits 1a and 2a, even if the fixed core 1 and plunger 2 collide with each other when the switch is turned on, the slits 1a and 2a are shallower on the drive rod 11 side, so the mechanical strength of the drive rod 11 side is less likely to decrease compared to the outer periphery side. This limits the amount of deformation of the slits 1a and 2a, and prevents the core from becoming too large.
図５に、本発明の電磁操作式開閉装置の実施例２を示す。 Figure 5 shows a second embodiment of the electromagnetically operated opening and closing device of the present invention.
図５は、実施例２の電磁操作式開閉装置における操作機構部を側面から見た断面図であり、固定鉄心１とプランジャ２が接触していない状態を示す。実施例１と同様な部分については説明を省略する。 Figure 5 is a cross-sectional side view of the operating mechanism of the electromagnetically operated opening/closing device of the second embodiment, showing the state in which the fixed core 1 and the plunger 2 are not in contact. Explanations of parts similar to those of the first embodiment will be omitted.
図５に示す本実施例における電磁操作式開閉装置は、プランジャ２の接触部側のみに、外周側から駆動ロッド１１側に渡ってスリット２ａが設けられ（図５に示した斜線部がスリット２ａになる）、しかも、このプランジャ２側のスリット２ａは、駆動ロッド１１側が浅く（斜線部が軸方向に短く）、外周側が深く（斜線部が軸方向に長く）形成されている。 In the electromagnetically operated opening and closing device of this embodiment shown in Figure 5, slits 2a are provided only on the contact side of the plunger 2, from the outer periphery to the drive rod 11 side (the shaded area in Figure 5 is the slit 2a), and the slits 2a on the plunger 2 side are shallow on the drive rod 11 side (the shaded area is short in the axial direction) and deep on the outer periphery side (the shaded area is long in the axial direction).
このようなスリット２ａを設けたプランジャ２は、開閉器の投入動作で固定鉄心１に衝突しても、スリット２ａは、駆動ロッド１１側が浅く形成されているため、駆動ロッド１１側の機械的強度の低下が外周側に比べて抑制できるため、スリット２ａの変形量を抑制することができ、鉄心の大形化を抑制できる。 Even if the plunger 2 provided with such a slit 2a collides with the fixed core 1 during the closing operation of the switch, the slit 2a is shallower on the drive rod 11 side, so the decrease in mechanical strength on the drive rod 11 side is less than on the outer periphery side, and the amount of deformation of the slit 2a can be suppressed, thereby preventing the core from becoming larger.
図６に、本発明の電磁操作式開閉装置の実施例３を示す。 Figure 6 shows a third embodiment of the electromagnetically operated opening and closing device of the present invention.
図６は、実施例３の電磁操作式開閉装置における操作機構部を側面から見た断面図であり、固定鉄心１とプランジャ２が接触していない状態を示す。実施例１と同様な部分については説明を省略する。 Figure 6 is a cross-sectional side view of the operating mechanism in the electromagnetically operated opening/closing device of the third embodiment, showing the state in which the fixed core 1 and the plunger 2 are not in contact. Explanations of parts similar to those in the first embodiment will be omitted.
図６に示す本実施例における電磁操作式開閉装置は、固定鉄心１の接触部側のみに、外周側から駆動ロッド１１側に渡ってスリット１ａが設けられ（図６に示した斜線部がスリット１ａになる）、しかも、この固定鉄心１側のスリット１ａは、駆動ロッド１１側が浅く（斜線部が軸方向に短く）、外周側が深く（斜線部が軸方向に長く）形成されている。 In the electromagnetically operated opening and closing device of this embodiment shown in Figure 6, slits 1a are provided only on the contact portion side of the fixed core 1, from the outer periphery side to the drive rod 11 side (the shaded portion in Figure 6 is the slit 1a), and the slits 1a on the fixed core 1 side are shallow on the drive rod 11 side (the shaded portion is short in the axial direction) and deep on the outer periphery side (the shaded portion is long in the axial direction).
このようなスリット１ａを設けた固定鉄心１は、開閉器の投入動作でプランジャ２に衝突しても、スリット１ａは、駆動ロッド１１側が浅く形成されているため、駆動ロッド１１側の機械的強度の低下が外周側に比べて抑制できるため、スリット１ａの変形量を抑制することができ、鉄心の大形化を抑制できる。 Even if the fixed core 1 provided with such slits 1a collides with the plunger 2 during the closing operation of the switch, the slits 1a are shallower on the drive rod 11 side, so the mechanical strength of the drive rod 11 side is less likely to decrease compared to the outer periphery side. This limits the amount of deformation of the slits 1a, and prevents the core from becoming too large.
なお、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かりやすく説明するために、具体的に説明したものであり、必ずしも説明した全ての構成を有するものに限定されるものではない。また、ある実施例の構成の一部を、他の実施例の構成の一部に置換することもできる。また、ある実施例の構成に他の実施例の構成を追加することもできる。また、各実施例の構成の一部について、それを削除し、他の構成の一部を追加し、他の構成の一部と置換することもできる。 The present invention is not limited to the above-described embodiments, but includes various modified examples. For example, the above-described embodiments have been specifically described in order to clearly explain the present invention, and are not necessarily limited to those having all of the configurations described. Also, a part of the configuration of one embodiment can be replaced with a part of the configuration of another embodiment. Also, a configuration of another embodiment can be added to a configuration of one embodiment. Also, a part of the configuration of each embodiment can be deleted, and a part of another configuration can be added and replaced with a part of another configuration.
１…固定鉄心、１ａ…固定鉄心のスリット、２…プランジャ、２ａ…プランジャのスリット、３…永久磁石、４…コイル、５…第１の固定平板、６…第２の固定平板、７…第３の固定平板、８…可動平板、９…第１の円筒鉄心、１０…第２の円筒鉄心、１１…駆動ロッド、１２…スリット。 1...Fixed iron core, 1a...Slit of fixed iron core, 2...Plunger, 2a...Slit of plunger, 3...Permanent magnet, 4...Coil, 5...First fixed flat plate, 6...Second fixed flat plate, 7...Third fixed flat plate, 8...Moveable flat plate, 9...First cylindrical iron core, 10...Second cylindrical iron core, 11...Driving rod, 12...Slit.
Claims (4)
前記コイルを励磁して前記プランジャを吸引し、前記プランジャと前記固定鉄心との対向面に前記永久磁石が発生する磁束を流して前記プランジャの吸引状態を保持すると共に、前記プランジャの吸引時と逆方向の電流を前記コイルに流して前記プランジャの吸引状態を釈放する電磁操作式開閉装置であって、
周方向に所定間隔を持ち、かつ、相対向して配置されている前記プランジャと前記固定鉄心との少なくとも一方の接触部側に、外周側から前記駆動ロッド側に渡ってスリットが設けられ、かつ、前記スリットは、前記駆動ロッド側が浅く、外周側が深く形成されていることを特徴とする電磁操作式開閉装置。 The rotor comprises a fixed flat plate to which a coil and a fixed core are fixed, a plunger that penetrates the coil, a drive rod to which the plunger is connected and which moves in the axial direction together with the plunger, and a permanent magnet disposed above the coil;
An electromagnetically operated opening/closing device which magnetizes the coil to attract the plunger, maintains the attracted state of the plunger by flowing a magnetic flux generated by the permanent magnet through a surface facing the plunger and the fixed iron core, and releases the attracted state of the plunger by flowing a current through the coil in a direction opposite to that when the plunger is attracted,
An electromagnetically operated switching device, characterized in that a slit is provided from the outer periphery side to the drive rod side on at least one contact portion between the plunger and the fixed core, which are arranged opposite each other with a predetermined circumferential distance, and the slit is shallow on the drive rod side and deep on the outer periphery side.
前記スリットは、前記プランジャと前記固定鉄心の両方の接触部側に設けられていることを特徴とする電磁操作式開閉装置。 2. The electromagnetically operated opening and closing device according to claim 1,
Electromagnetically operated switching device, characterized in that the slit is provided on the contact portion sides of both the plunger and the fixed core.
前記スリットは、前記プランジャの接触部側にのみ設けられていることを特徴とする電磁操作式開閉装置。 2. The electromagnetically operated opening and closing device according to claim 1,
13. An electromagnetically operated opening/closing device, wherein the slit is provided only on the contact portion side of the plunger.
前記スリットは、前記固定鉄心の接触部側のみに設けられていることを特徴とする電磁操作式開閉装置。 2. The electromagnetically operated opening and closing device according to claim 1,
An electromagnetically operated switching device, characterized in that the slit is provided only on the contact portion side of the fixed core.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022097894A JP7711031B2 (en) | 2022-06-17 | 2022-06-17 | Electromagnetic operated switchgear |
| PCT/JP2022/045115 WO2023243121A1 (en) | 2022-06-17 | 2022-12-07 | Electromagnetically operated switching device |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2022097894A JP7711031B2 (en) | 2022-06-17 | 2022-06-17 | Electromagnetic operated switchgear |
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| JP2023184012A JP2023184012A (en) | 2023-12-28 |
| JP7711031B2 true JP7711031B2 (en) | 2025-07-22 |
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| JP2022097894A Active JP7711031B2 (en) | 2022-06-17 | 2022-06-17 | Electromagnetic operated switchgear |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006322430A (en) | 2005-05-20 | 2006-11-30 | Denso Corp | Fuel injection device |
| US20140091243A1 (en) | 2012-09-28 | 2014-04-03 | Buerkert Werke Gmbh | Sealing system for a solenoid valve and solenoid valve |
| JP2016023748A (en) | 2014-07-23 | 2016-02-08 | 日立オートモティブシステムズ株式会社 | solenoid valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11336518A (en) * | 1998-03-23 | 1999-12-07 | Toyota Motor Corp | Electromagnetic drive valve |
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- 2022-12-07 WO PCT/JP2022/045115 patent/WO2023243121A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006322430A (en) | 2005-05-20 | 2006-11-30 | Denso Corp | Fuel injection device |
| US20140091243A1 (en) | 2012-09-28 | 2014-04-03 | Buerkert Werke Gmbh | Sealing system for a solenoid valve and solenoid valve |
| JP2016023748A (en) | 2014-07-23 | 2016-02-08 | 日立オートモティブシステムズ株式会社 | solenoid valve |
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| JP2023184012A (en) | 2023-12-28 |
| WO2023243121A1 (en) | 2023-12-21 |
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