WO2019038813A1 - Dispositif d'actionnement électromagnétique et disjoncteur - Google Patents

Dispositif d'actionnement électromagnétique et disjoncteur Download PDF

Info

Publication number
WO2019038813A1
WO2019038813A1 PCT/JP2017/029816 JP2017029816W WO2019038813A1 WO 2019038813 A1 WO2019038813 A1 WO 2019038813A1 JP 2017029816 W JP2017029816 W JP 2017029816W WO 2019038813 A1 WO2019038813 A1 WO 2019038813A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
fixed
iron core
divided
magnetic plate
Prior art date
Application number
PCT/JP2017/029816
Other languages
English (en)
Japanese (ja)
Inventor
説志 岩下
雄大 相良
聡介 内野
智也 出口
Original Assignee
三菱電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201780093910.0A priority Critical patent/CN111033669B/zh
Priority to JP2019537442A priority patent/JP6707204B2/ja
Priority to PCT/JP2017/029816 priority patent/WO2019038813A1/fr
Priority to CN201880052996.7A priority patent/CN111052288B/zh
Priority to PCT/JP2018/001286 priority patent/WO2019038946A1/fr
Priority to TW107112258A priority patent/TWI660388B/zh
Priority to TW107122090A priority patent/TWI670741B/zh
Publication of WO2019038813A1 publication Critical patent/WO2019038813A1/fr

Links

Images

Classifications

    • 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
    • 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
    • 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
    • H01H33/42—Driving mechanisms
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements

Definitions

  • the present invention relates to an electromagnetic operation mechanism and a circuit breaker for closing operation for bringing a movable contact into contact with a fixed contact or tripping operation for moving the movable contact away from the fixed contact.
  • the electromagnetic control type circuit breaker is known as a circuit breaker which opens and closes an electric path.
  • the electromagnetic operation type circuit breaker is provided with an electromagnetic operation mechanism for closing operation or tripping operation in an insulating housing of the circuit breaker.
  • the electromagnetic operation mechanism is configured such that the movable core coupled to the drive shaft is attracted to the fixed core by excitation of the electromagnetic coil.
  • the stationary core of the electromagnetic operation mechanism is manufactured by laminating and integrating a plurality of stamped magnetic plates as described in Patent Document 2.
  • the electromagnetic operation mechanism of the circuit breaker is generally fixed to an insulating casing, and a fixing iron core is fixed through a screw in a connecting hole formed in the lamination direction of magnetic plates as disclosed in Patent Document 2
  • the variation in thickness of the fixed core sometimes lowers the accuracy of the turning on or off operation.
  • the circuit breaker may not be able to be closed.
  • the variation in the thickness of the fixed core is large, it is conceivable to attach the electromagnetic operation mechanism to the housing in the direction perpendicular to the stacking direction of the magnetic plates, but in the prior art, a dedicated part or a dedicated structure is required. Therefore, the configuration is complicated. In addition, the cause of the variation is increased, and the same problem as in the case where the electromagnetic operation mechanism is fixed to the housing in the stacking direction of the magnetic plates may occur.
  • the present invention is made in view of the above, and an object of the present invention is to obtain an electromagnetic operation mechanism capable of suppressing a variation in position of a drive shaft and performing a stable closing operation.
  • the electromagnetic operation mechanism of the present invention is fixed to a stationary core, a movable core movably provided relative to the stationary core, and a stationary core to generate magnetic flux. And an electromagnetic coil for moving the movable core, and a drive shaft connected to the movable core.
  • the fixed core is formed by laminating a plurality of first magnetic plates, and the first divided core and the second divided core opposed to each other in the direction orthogonal to the stacking direction of the plurality of first magnetic plates, And a plurality of connecting members for connecting the first divided core and the second divided core.
  • Each of the plurality of connecting members has the same shape as the first magnetic plate, and connects the first divided iron core and the second divided iron core in a direction different from the first magnetic plate.
  • a second magnetic plate constituted by a plate and constituting at least one of the plurality of connection members protrudes outward of at least one of the first divided core and the second divided core in a direction orthogonal to the stacking direction.
  • a fixing region fixed to a support provided on the case of the circuit breaker.
  • FIG. 2 is a diagram showing a configuration example of a circuit breaker according to a first embodiment.
  • An exploded perspective view of the electromagnetic operation mechanism according to the first embodiment An external perspective view showing an assembled state of the electromagnetic operation mechanism according to the first embodiment.
  • Top view of the electromagnetic operation mechanism according to the first embodiment Side view of the electromagnetic operation mechanism according to the first embodiment A figure showing an example of composition of a magnetic board concerning Embodiment 1.
  • FIG. 1 is a view showing a configuration example of a circuit breaker according to a first embodiment.
  • the circuit breaker according to the first embodiment is, for example, an air circuit breaker that opens and closes an electric path in the atmosphere, but can also be applied to a circuit breaker other than the air circuit breaker.
  • coordinates of XYZ axes are attached in the drawings.
  • the positive direction of the Z axis is upward, the negative direction of the Z axis is downward, the positive direction of the X axis is rightward, the negative direction of the X axis is left, and the positive direction of the Y axis is forward And the Y-axis negative direction is the back direction.
  • the circuit breaker 100 includes an insulating casing 1, a first fixed conductor 10 connected to a power supply side conductor (not shown), and a load side conductor (not shown) A second fixed conductor 11 connected to each other, a mover 20 having a movable contact 20a, and a flexible conductor 30 electrically connected between the second fixed conductor 11 and the mover 20, Prepare.
  • the first fixed conductor 10 is also referred to as a power supply side terminal, and penetrates the wall 2 of the housing 1 from the outside of the housing 1 to reach the first space 7.
  • One end portion 101 of the first fixed conductor 10 protrudes to the outside of the housing 1 and is connected to a power supply side conductor (not shown).
  • the other end portion 102 of the first fixed conductor 10 is disposed in the first space portion 7, and the fixed contact 10a is fixed.
  • the second fixed conductor 11 is also referred to as a load-side terminal, and, like the first fixed conductor 10, penetrates the wall 2 of the housing 1 from the outside of the housing 1 to reach the first space 7. There is.
  • One end 111 of the second fixed conductor 11 protrudes to the outside of the housing 1 and is connected to a load-side conductor (not shown), and the other end 112 of the second fixed conductor 11 is in the first space 7. Be placed.
  • a movable contact 20 a is provided at one end portion 201 of the mover 20.
  • One end 301 of the flexible conductor 30 is fixed to the other end 202 of the mover 20.
  • the other end 302 of the flexible conductor 30 is fixed to the other end 112 of the second fixed conductor 11.
  • the circuit breaker 100 is attached to the contact pressure spring 41 having one end attached to the other end 202 of the mover 20 and the other end attached to the wall 2 of the housing 1 and the mover 20 And a link pin 42.
  • the contact pressure spring 41 urges the movable element 20 so that the movable contact 20a and the fixed contact 10a approach each other with the link pin 42 as a center, and the movable contact 20a provided on the movable element 20 becomes the fixed contact 10a.
  • the circuit breaker 100 connects the transmission unit 50 connected to the mover 20 by the link pin 42, the electromagnetic operation mechanism 60 for moving the mover 20 via the transmission unit 50, and the transmission unit 50 and the electromagnetic operation mechanism 60. And a connecting portion 70.
  • the transmission unit 50 is disposed across the first space 7 and the second space 8, and the electromagnetic operation mechanism 60 and the coupling unit 70 are disposed in the second space 8.
  • the one end 521 is rotatably connected by the link pin 53 to the operation arm 51 whose one end 511 is rotatably connected to the mover 20 by the link pin 42 and the other end 512 of the operation arm 51.
  • a shaft 54 fixed to a central portion of the connection plate 52 and rotating about an axial center 55.
  • the transmission part 50 is not limited to the structure mentioned above.
  • the transfer unit 50 may be configured such that the mover 20 is connected to the tip end of one rotation member that rotates around the axis 55.
  • the transmission unit 50 may be configured to have one or more link members between the operation arm 51 and the connection plate 52.
  • the electromagnetic operation mechanism 60 is disposed below the connection plate 52, and is fixed to the support portions 4 and 5 projecting from the partition wall 3 of the housing 1 toward the second space portion 8 side.
  • the drive shaft 65 of the electromagnetic operation mechanism 60 is connected to the other end 522 of the connection plate 52 at a predetermined distance from the axial center 55 of the shaft 54 via the connection portion 70.
  • connection unit 70 includes connection pins 71 and 72 and a connection link 73.
  • a connection pin 71 is bridged between one connection hole (not shown) formed in the connection link 73 and the connection hole 67 formed in the drive shaft 65.
  • a connection pin 72 is bridged between the other connection hole (not shown) formed in the connection link 73 and the connection hole (not shown) formed in the middle of the connection plate 52.
  • the rotation of the shaft 54 in the direction in which the one end 521 descends causes the operation arm 51 to be driven by the connection plate 52 via the link pin 53 so as to be linearly arranged in the length direction of the connection plate 52.
  • the mover 20 moves toward the wall 2 while compressing the contact pressure spring 41, and the movable contact 20a contacts the fixed contact 10a.
  • first fixed conductor 10 is electrically connected to second fixed conductor 11 via fixed contact 10a, movable contact 20a, mover 20, and flexible conductor 30. Be done.
  • the circuit breaker 100 includes a holding mechanism (not shown).
  • the input state is held by the holding mechanism.
  • the respective members operate in the opposite direction to the closing operation, and the movable contact 20a is moved away from the fixed contact 10a to be in the separated state shown in FIG.
  • the movement operation from the tripping state to the closing state is performed by the upward movement of the drive shaft 65 of the electromagnetic operation mechanism 60.
  • FIG. 2 is an exploded perspective view of the electromagnetic operation mechanism according to the first embodiment
  • FIG. 3 is an external perspective view showing an assembled state of the electromagnetic operation mechanism according to the first embodiment
  • FIG. 4 is a view according to the first embodiment
  • FIG. 5 is a plan view of an electromagnetic operation mechanism
  • FIG. 5 is a side view of the electromagnetic operation mechanism according to the first embodiment.
  • coordinates of XYZ axes are attached so that the state of the electromagnetic operation mechanism 60 in FIG. 1 is a front view of the electromagnetic operation mechanism 60.
  • the electromagnetic operation mechanism 60 includes a stationary core 61, a cylindrical electromagnetic coil 62 fixed to the stationary core 61, and an insulating bobbin 63 on which the electromagnetic coil 62 is wound.
  • a movable iron core 64 inserted into the inner space of the bobbin 63, a drive shaft 65 connected to the movable iron core 64, and a guide member 66 for guiding the vertical movement of the drive shaft 65.
  • the fixed core 61 has an inner space 68, and the electromagnetic coil 62 and the bobbin 63 are disposed in the inner space 68 of the fixed core 61. Further, a connection hole 67 is formed in one end portion 651 of the drive shaft 65, and the connection hole 67 is used to connect to the other end 522 of the connection plate 52 shown in FIG. The other end 652 of the drive shaft 65 is fixed to the movable core 64.
  • the third inner wall portion 613 and the fourth inner wall portion 614 of the fixed iron core 61 shown in FIG. 2 abut against the middle part of the movable iron core 64 in the detached state shown in FIG. Configured as.
  • the shapes of the third inner wall portion 613 and the fourth inner wall portion 614 are not limited to the shapes shown in FIG.
  • the fixed core 61 is formed by laminating a plurality of magnetic plates 90 in the same direction and is formed of a first divided core 81 and a second divided core 82 facing each other, and one or more magnetic plates 91 each.
  • the plurality of laminated magnetic plates 90 are integrated by caulking, adhesion, or welding.
  • the magnetic plate 90 and the magnetic plate 91 have the same shape, and are produced, for example, by punching a magnetic plate such as silicon steel plate.
  • the magnetic plate 90 is an example of a first magnetic plate
  • the magnetic plate 91 is an example of a second magnetic plate.
  • FIG. 6 is a view showing a configuration example of the magnetic plate according to the first embodiment. Further, in FIG. 6, the upper direction is the Z-axis positive direction, the lower direction is the Z-axis negative direction, and the right direction is the X-axis positive direction.
  • each of the magnetic plates 90 and 91 has an extension portion 92 extending in the vertical direction, a first protrusion 93 projecting to the right from the upper portion of the extension portion 92, and a lower portion of the extension portion 92. And a second protrusion 94 protruding rightward.
  • a plurality of connection holes 95a, 95b, 95c, 95d, and 95e are formed along the vertical direction.
  • a connection hole 95 f is formed at the tip of the first protrusion 93.
  • the connection holes 95a, 95b, 95c, 95d, 95e, 95f may be collectively referred to as connection holes 95.
  • connection hole 95e is disposed at a position farther from the connection hole 95a than the connection hole 95d, and the distance L1 between the connection hole 95a and the connection hole 95e is longer than the distance L2 between the connection hole 95a and the connection hole 95d.
  • the end 911 of the magnetic plate 91 shown in FIG. 6 is used for fixing to the housing 1 as described later.
  • the dimension of the distance L2 since the external size of the electromagnetic operation mechanism 60 changes in accordance with the performance required for the electromagnetic operation mechanism 60, the magnetic plate 90 and the magnetic plate 91 are superimposed in different directions. It can be set arbitrarily according to the external size under the constraint that the connecting holes 95 are aligned.
  • each of the first connection member 83, the second connection member 84, the third connection member 85, and the fourth connection member 86 is configured by one magnetic plate 91
  • the magnetic plates 91 may be stacked in the same direction. Further, in the examples shown in FIG. 2, FIG. 3, FIG. 4 and FIG. 5, the first split iron core 81 and the second split iron core 82 are formed by laminating 19 magnetic plates 90.
  • the number of magnetic plates 90 may be 18 or less, or 20 or more.
  • the first protrusion 93 and the second protrusion 94 of the magnetic plate 90 may be referred to as the first protrusion 93 and the second protrusion 94 of the first split iron core 81, and
  • the first projection 93 and the second projection 94 of 90 may be described as the first projection 93 and the second projection 94 of the second core segment 82.
  • the first split iron core 81 and the second split iron core 82 are arranged so as to be mirror-symmetrical to each other, and the first projection 93 and the second projection 94 Facing each other in the direction of protrusion of
  • a guide member 66 shown in FIG. 2 is disposed between the first projecting portion 93 of the first split core 81 and the first projecting portion 93 of the second split core 82.
  • the guide member 66 is provided with a guide hole 69 through which the drive shaft 65 is inserted, and the first projecting portion 93 of the first divided core 81 and the first projecting portion 93 of the second divided core 82 It is held by
  • the first split iron core 81 and the second split iron core 82 are formed by the first connection member 83 and the second connection member 84 at one end side of the magnetic plate 90 in the stacking direction. They are connected, and are connected by the third connecting member 85 and the fourth connecting member 86 on the other end side in the stacking direction of the magnetic plate 90.
  • the first split iron core 81 and the second split iron core 82 are connected to the first split iron core 81 and the second split iron core 82 by the first connection member 83, the second connection member 84, and the third connection. It is performed by fixing the member 85 and the 4th connection member 86 by connection bolt 87a, 87b, 87c, 87d, 87e, 87f.
  • FIG. 7 shows a first divided core 81 and a second divided core by the first connecting member 83, the second connecting member 84, the third connecting member 85, and the fourth connecting member 86 according to the first embodiment. It is explanatory drawing of the connection method with 82. FIG. For convenience of explanation, the bobbin 63, the movable iron core 64, and the drive shaft 65 are not shown in FIG.
  • the first split iron core 81 and the second split iron core 82 are arranged such that the first protrusions 93 of each other face each other and the second protrusions 94 face each other. In this state, the first split iron core 81 and the second split iron core 82 are mirror symmetric.
  • first projection 93 of the first core segment 81 and the first projection 93 of the second core segment 82 face each other at an interval
  • second projection of the first core segment 81 94 and the second projecting portion 94 of the second split iron core 82 face each other at an interval.
  • a space surrounded by the first split iron core 81 and the second split iron core 82 is the inner space 68 described above.
  • the drive shaft 65 projects out of the stationary core 61 through a gap formed by the first projection 93 of the first core segment 81 and the first projection 93 of the second core segment 82.
  • first connecting members 83 and the second connecting members 84 are arranged such that the first protrusions 93 of each other face each other, and the second protrusions 94 face each other.
  • the magnetic plates 90 constituting the two connecting members 84 are oriented in a direction different from the direction of the magnetic plates 90 constituting the first divided iron core 81 and the second divided iron core 82.
  • the first connecting member 83 is directed from the direction of the magnetic plate 90 constituting the first divided core 81 to the direction along the XZ plane along the XZ plane which is the lamination surface of the magnetic plate 90.
  • the second connecting member 84 is rotated 90 degrees in the direction in which the X axis is superimposed on the Z axis along the XZ plane from the direction of the magnetic plate 90 constituting the second split iron core 82 in a direction rotated 90 degrees. To turn.
  • the third connecting member 85 and the fourth connecting member 86 face each other, and the second projecting portions 94 face each other.
  • the magnetic plates 90 constituting the four connecting members 86 are oriented in a direction different from the direction of the magnetic plates 90 constituting the first divided iron core 81 and the second divided iron core 82.
  • first connecting member 83 and the second connecting member 84 and the third connecting member 85 and the fourth connecting member 86 are mutually connected via the first split iron core 81 and the second split iron core 82. It is arranged to face each other.
  • the first connection is made on the plate surface of the magnetic plate 90 of the uppermost layer among the plurality of magnetic plates 90 stacked in each of the first split iron core 81 and the second split iron core 82.
  • the plate surfaces of the member 83 and the second connection member 84 overlap each other.
  • the plate surfaces of the third connecting member 85 and the fourth connecting member 86 overlap on the plate surface of the lowermost magnetic plate 90 in each of the first divided core 81 and the second divided core 82. become.
  • the first divided iron core 81 and the second divided iron core 82 and the first divided iron core 81 are formed using the connection bolts 87a, 87b, 87c, 87d, 87e and 87f and the nuts 88a, 88b, 88c, 88d, 88e and 88f.
  • the connecting member 83, the second connecting member 84, the third connecting member 85 and the fourth connecting member 86 are fixed.
  • the connection bolt 87a is passed through the connection hole 95a of the first connection member 83, the connection hole 95e of the first split iron core 81, and the connection hole 95a of the third connection member 85, and is fixed by the nut 88a.
  • connection bolts 87b, 87c, 87d, 87e, 87f are similarly fastened with nuts 88b, 88c, 88d, 88e, 88f through the corresponding connection holes 95 respectively.
  • the first split iron core 81 and the second split iron core 82 are connected by the first connection member 83, the second connection member 84, the third connection member 85, and the fourth connection member 86.
  • the first connection member 83 and The second connecting member 84 can be fixed. Therefore, the number of types of magnetic plates constituting the fixed core 61 can be one, and the number of types of parts constituting the fixed core 61 can be reduced as compared with the case of using a plurality of types of magnetic plates.
  • 95e, 95f, the connection holes 95a, 95e, 95f are used to fix the first connection member 83, the second connection member 84, the third connection member 85, and the fourth connection member 86.
  • 95d, 95e, 95f, the connection holes 95a, 95b, 95c, 95d are used to connect the first split iron core 81 and the second split iron core 82.
  • the first divided core 81 and the second divided core 82 and the first connecting member 83, the second connecting member 84, the third connecting member 85 and the fourth connecting member 86 form the connecting hole 95a.
  • the number of connection holes 95 formed in the magnetic plates 90 and 91 can be suppressed, and the reduction in strength of the magnetic plates 90 and 91 can be suppressed.
  • the magnetic boards 90 and 91 mentioned above have six connection holes 95a, 95b, 95c, 95d, 95e, and 95f, the number of the connection holes 95 is not limited to six.
  • the first connecting member 83, the second connecting member 84, the third connecting member 85 and the fourth connecting member 86 are, as shown in FIG. 3, in the first split iron core 81 and the second split iron core 82.
  • At least end portions 831, 841, 851, 861 project outward of the first split iron core 81 and the second split iron core 82 in the Y-axis negative direction orthogonal to the stacking direction of the magnetic plate 90, and the end portions 831, 841, 851 Connection holes 95 e are disposed at 841, 851, 861.
  • the end portions 831, 841, 851, 861 are the end portions 911 of the magnetic plate 91 shown in FIG.
  • the electromagnetic operation mechanism 60 has a first split iron core 81 and a second split by connecting holes 95 a and 95 d whose distance from each other is shorter than the distance L 1 between the connecting holes 95 a and 95 e in the magnetic plate 91.
  • Iron cores 82 are connected. Therefore, the end portions 831, 841, 851, and 861 can be protruded in the X axis negative direction with respect to the first split iron core 81 and the second split iron core 82.
  • a connection hole 95 e formed in the magnetic plate 90 which respectively configures the first connection member 83, the second connection member 84, the third connection member 85, and the fourth connection member 86 corresponds to the partition wall 3 of the housing 1. And the support portion 4 protruding toward the second space portion 8 side, and is used to fix the electromagnetic operation mechanism 60 to the support portion 5.
  • the variation in the distance L3 between the central axis O1 of the drive shaft 65 and the connection hole 95e of the magnetic plate 91 does not depend on the thickness of the first split iron core 81 and the second split iron core 82. Variations in the position of the central axis O1 of the shaft 65 can be suppressed. Hereinafter, this point will be specifically described.
  • FIG. 8 is a view showing a state in which the electromagnetic operation mechanism is fixed to the support portion protruding from the partition wall of the housing according to the first embodiment.
  • the supporting portions 4 and 5 are, for example, ribs projecting from the partition wall 3, but may be metal members attached to the partition wall 3 such as an L-shaped metal fitting fixed to the partition wall 3.
  • the mounting screw 96 is screwed into the screw hole formed in the support portion 4 through the connection hole 95 e of the first connection member 83, whereby the first connection member 83 is the housing 1. It is fixed to Further, the second connection member 84 is fixed to the housing 1 by screwing the attachment screw 97 into the screw hole formed in the support portion 5 through the connection hole 95 e of the second connection member 84.
  • the plate surface of the magnetic plate 91 constituting the first connecting member 83 and the second connecting member 84 that is, the surface in the stacking direction of the magnetic plate 91 is a fixing region fixed to the supporting portions 4 and 5, and the supporting portion It fixes to the support parts 4 and 5 as a mounting surface to 4,5.
  • a mounting screw (not shown) is screwed into a screw hole formed in a rib (not shown) via the connection hole 95e of the third connection member 85, and the third connection member 85 is fixed to the housing 1 Ru. Further, a mounting screw (not shown) is screwed into a screw hole formed in a rib (not shown) through the connection hole 95 e of the fourth connection member 86, and the fourth connection member 86 is fixed to the housing 1 .
  • the first connecting member 83, the second connecting member 84, the third connecting member 85, and the fourth connecting member 86 are attached to the rib has been described, the first connecting member 83 and the second connecting member are described. Only a part of the member 84, the third connecting member 85, and the fourth connecting member 86 may be attached to the rib.
  • the variation of the distance L4 between the central axis O1 of the drive shaft 65 and the partition wall 3 is an outline of the first connecting member 83, the second connecting member 84, the third connecting member 85, and the fourth connecting member 86. It becomes settled by the dispersion
  • the operation mechanism 60 can be fixed to the housing 1, a member for fixing the electromagnetic operation mechanism 60 to the housing 1 is not newly required. Therefore, the number of parts in the circuit breaker 100 can be reduced.
  • 95 e can be used for fixing to the housing 1. Therefore, the number of connection holes 95 formed in the magnetic plates 90 and 91 can be suppressed, and the strength reduction of the magnetic plates 90 and 91 can be suppressed.
  • the circuit breaker 100 includes the first fixed conductor 10, which is an example of the fixed conductor having the fixed contact 10a, the mover 20 having the movable contact 20a, and the drive shaft 65.
  • An electromagnetic operation mechanism 60 and a housing 1 covering the transmission unit 50 are provided.
  • the electromagnetic operation mechanism 60 includes a fixed core 61, a movable core 64 provided movably with respect to the fixed core 61, and an electromagnetic coil 62 fixed to the fixed core 61 and generating magnetic flux to move the movable core 64. , And a drive shaft 65 coupled to the movable core 64.
  • the fixed iron core 61 is formed by laminating a plurality of magnetic plates 90 which are an example of a first magnetic plate, and the first divided iron cores 81 opposed to each other in the direction orthogonal to the laminating direction of the plurality of magnetic plates 90
  • a member 86 is formed by laminating a plurality of magnetic plates 90 which are an example of a first magnetic plate, and the first divided iron cores 81 opposed to each other in the direction orthogonal to the laminating direction of the plurality of magnetic plates 90
  • a first connecting member 83, a second connecting member 84, a third connecting member 85, and a fourth connecting member connecting the second split iron core 82, the first split iron core 81 and the second split iron core 82.
  • the magnetic board 91 which is an example of the 2nd magnetic board which connects the 1st division iron core 81 and the 2nd division iron core 82.
  • the magnetic plate 91 that constitutes at least one of the first connecting member 83, the second connecting member 84, the third connecting member 85, and the fourth connecting member 83 has a stacking direction of the plurality of magnetic plates 90.
  • a fixing region that protrudes outward of at least one of the first split iron core 81 and the second split iron core 82 in the direction orthogonal to the second split iron core and is fixed to the support portions 4 and 5 provided in the housing 1 Have.
  • the variation of the position of the central axis O1 of the drive shaft 65 is the variation of the outer shape of the first connecting member 83, the second connecting member 84, the third connecting member 85 and the fourth connecting member 86, and the connecting hole. It becomes settled by the dispersion of the position of 95e. Therefore, even when the size of the electromagnetic operation mechanism 60 is increased, the number of laminated magnetic plates 90 which constitute the first split iron core 81 and the second split iron core 82 is not affected. Therefore, compared with the case where the first split iron core 81 and the second split iron core 82 are fixed in the stacking direction of the magnetic plate 90, the variation of the position of the central axis O1 of the drive shaft 65 is small. It can be fixed.
  • the positional relationship of the other components coupled to the drive shaft 65 is stabilized, and a stable closing operation can be performed.
  • the magnetic plates 90 and 91 which comprise the fixed iron core 61 are the same shape, the kind of components which comprise the fixed iron core 61 can be reduced.
  • the magnetic plate 91 is fixed to the support portions 4 and 5 with the surface of the end portion 911 in the stacking direction of the magnetic plate 90 as an attachment surface to the support portion 4 and the support portion 5.
  • the magnetic plate 91 can be fixed to the support portions 4 and 5 by surface contact, and the attachment of the electromagnetic operation mechanism 60 to the housing 1 can be stably performed.
  • the side surface of the end portion 911 may be used instead of the surface of the end portion 911 as a fixing region fixed to the support portion 4 and the support portion 5.
  • the moving direction of the movable iron core 64 is a direction orthogonal to the stacking direction of the magnetic plates 90.
  • the magnetic plate 91 has an end portion outward of at least one of the first divided iron core 81 and the second divided iron core 82 in the direction orthogonal to the stacking direction of the magnetic plate 90 and the moving direction of the movable iron core 64. 911 protrudes. Therefore, the length of the fixed iron core 61 in the moving direction of the movable iron core 64 can be suppressed, and the length of the electromagnetic operation mechanism 60 excluding the drive shaft 65 can be suppressed in the moving direction of the movable iron core 64.
  • connection holes 95a, 95b, 95c, 95d, 95e, 95f are formed in the magnetic plate 90 and the magnetic plate 91, and the plurality of connection holes 95a, 95b, 95c, 95d, 95e, 95f are formed.
  • a connection hole 95 e is formed at the end 911.
  • connection holes 95e among the plurality of connection holes 95a, 95b, 95c, 95d, 95e, 95f are connected to the magnetic plate 91 of the first split iron core 81 and the second split iron core 82 to the magnetic plate 90, It is selectively used for fixing the magnetic plate 91 to the support 4 and the support 5. Thereby, the number of connection holes 95 formed in the magnetic plates 90 and 91 can be suppressed, and the strength reduction of the magnetic plates 90 and 91 can be suppressed.
  • first connecting member 83, the second connecting member 84, the third connecting member 85 and the fourth connecting member 86 is protruded in the direction orthogonal to the central axis O1 of the drive shaft 65.
  • first connecting member 83, the second connecting member 84, the third connecting member 85, and the fourth connecting member 84 are fixed.
  • the second embodiment differs from the first embodiment in that a part of the connecting member 86 is protruded in a direction along the central axis O1 of the drive shaft 65 to be fixed to the support portions 4 and 5 of the housing 1.
  • FIG. 9 is a view showing a configuration example of a magnetic plate constituting the fixed core of the electromagnetic operation mechanism according to the second embodiment
  • FIG. 10 is a plan view of the electromagnetic operation mechanism according to the second embodiment.
  • the upper direction is the Z-axis positive direction
  • the lower direction is the Z-axis negative direction
  • the right direction is the X-axis positive direction.
  • the electromagnetic operation mechanism 60A uses magnetic plates 90A and 91A having a shape different from that of the magnetic plates 90 and 91 according to the first embodiment. As shown in FIG. 9, the magnetic plates 90A and 91A have the same shape as each other as the magnetic plates 90 and 91 do.
  • the magnetic plates 90A and 91A have an extending portion 92A extending in the vertical direction, a first projecting portion 93A projecting rightward from the upper portion of the extending portion 92A, and a second projecting rightward from the lower portion of the extending portion 92A. And a protrusion 94A.
  • connection holes 98a, 98b, 98c, 98d, 98e, 98f are formed in the extending portion 92A, and the connecting hole 98g is formed in the first projecting portion 93A.
  • connection holes 98a, 98b, 98c, 98d, 98e and 98g may be collectively referred to as connection holes 98.
  • the fixed core 61A includes a first divided core 81A and a second divided core 82A, a first connecting member 83A, a second connecting member 84A, a third connecting member 85A and a fourth connecting member.
  • first divided iron core 81A and the second divided iron core 82A by the connecting bolts 87a, 87b, 87c, 87d, 87e, 87f, and the first connecting member 83A, the second connecting member 84A, the third connecting member 85A and the fourth connecting member 86A are fixed.
  • the first split iron core 81A and the second split iron core 82A are constituted by the magnetic plate 90A, and the first connection member 83A, the second connection member 84A, the third connection member 85A and the fourth connection member 86A are , And magnetic plate 91A.
  • the third connecting member 85A and the fourth connecting member 86A are hidden by the first connecting member 83A and the second connecting member 84A and are not shown.
  • connection holes 98a, 98b, 98c, 98d, 98e, 98f and 98g of the magnetic plate 90A are the first connection member 83A and the second connection member 84A.
  • the third connecting member 85A and the fourth connecting member 86A are the connection holes 98a, 98b, 98c, 98d, 98e, 98f and 98g formed in the magnetic plate 91A.
  • the connection holes 98b, 98c, 98d and 94f are divided into the first divided iron core 81A and the second divided It is used for connection with the iron core 82A.
  • the magnetic plates 90A and 91A have seven connection holes 98, as in the case of the magnetic plates 90 and 91, the number of connection holes 98 is not limited to the number shown in FIG.
  • the first connecting member 83A and the second connecting member 84A are vertical directions that are orthogonal to the stacking direction of the magnetic plates 90A in the first divided core 81A and the second divided core 82A. At least the end portions 832A and 842A project outward beyond the first split iron core 81A and the second split iron core 82A. Also, although not shown, the end portions of the third connecting member 85A and the fourth connecting member 86A similarly project outward of the first divided core 81A and the second divided core 81A in the vertical direction.
  • the end portions 832A and 842A are the end portions 912A of the magnetic plate 91A shown in FIG.
  • connection holes 98a and 98e formed in the magnetic plate 90A that respectively configure the first connection member 83A, the second connection member 84A, the third connection member 85A, and the fourth connection member 86A It is used to fix the electromagnetic operation mechanism 60A to the supports 4 and 5 protruding from the wall 3.
  • FIG. 11 is a view showing a state in which the electromagnetic operation mechanism is fixed to the support portion protruding from the partition wall of the casing according to the second embodiment.
  • the first connection member 83A is formed by screwing the attachment screw 96 into the screw hole formed in the support 4 via the connection hole 98e of the first connection member 83A. It is fixed to Further, the second connection member 84 is fixed to the housing 1 by screwing the mounting screw 97 into the screw hole formed in the support portion 5 via the connection hole 98 e of the second connection member 84A.
  • the third connecting member 85A and the fourth connecting member 86A are similarly fixed to the support portions 4 and 5 by mounting screws (not shown).
  • the plate surface of the magnetic plate 91A constituting the first connecting member 83A, the second connecting member 84A, the third connecting member 85A and the fourth connecting member 86A, that is, the surface in the stacking direction of the magnetic plate 91A is a support It fixes to the support parts 4 and 5 as a mounting surface to 4,5.
  • the variation of the distance L5 between the central axis O1 of the drive shaft 65 and the partition wall 3 is an outline of the first connecting member 83A, the second connecting member 84A, the third connecting member 85A and the fourth connecting member 86A. It becomes settled by the dispersion
  • the electromagnetic operation mechanism 60A is fixed to the housing 1 using the connection holes 98e of the first connection member 83A, the second connection member 84A, the third connection member 85A, and the fourth connection member 86A.
  • the electromagnetic operation mechanism 60A is formed using only a part of the connection holes 98e of the first connection member 83A, the second connection member 84A, the third connection member 85A, and the fourth connection member 86A. It may be fixed to
  • the electromagnetic operation mechanism 60A is fixed to the housing 1 using all of the connection holes 98e of the first connection member 83A, the second connection member 84A, the third connection member 85A, and the fourth connection member 86A. You can also.
  • FIG. 12 is a plan view of an electromagnetic operation mechanism of another configuration according to the second embodiment.
  • the electromagnetic operation mechanism 60A includes one of the first connecting member 83A, the second connecting member 84A, the third connecting member 85A, and the fourth connecting member 86A.
  • the end 912A of the magnetic plate 91A to be separated is a first divided core 81A and a second divided core in a direction orthogonal to the stacking direction of the plurality of magnetic plates 90A in the first divided core 81A and the second divided core 82A. It has a fixed area which protrudes to the outside of at least one of 82 A and is fixed to the supports 4 and 5 provided on the housing 1.
  • the projecting direction of the end 912A of the magnetic plate 91A is the moving direction of the movable iron core 64.
  • the length of fixed iron core 61A can be suppressed in the width direction which is a direction orthogonal to the moving direction of movable iron core 64 and the lamination direction of magnetic plate 90A, and the length of electromagnetic operation mechanism 60A in the width direction Can be reduced.
  • the protruding end portions 911 and 912A of the magnetic plates 91 and 91A are fixed to the supporting portions 4 and 5, but a part of the magnetic plates 91 and 91A protruding is the supporting portion What is necessary is just to be fixed to 4 and 5, and it is not limited to the example in which the end parts 911 and 912A are fixed to the support parts 4 and 5.
  • the electromagnetic operation mechanism 60, 60A is at least one of the tripping operation and the maintenance of the tripping state
  • the electromagnetic operation mechanism 60, 60A is at least one of the tripping operation and the maintenance of the tripping state.
  • an additional electromagnetic coil for moving the drive shaft 65 downward is fixed to the fixed iron cores 61, 61A, and an excitation current is caused to flow through the additional electromagnetic coil. At least one of the removal operation and the maintenance of the release state is performed.
  • the configuration shown in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and one of the configurations is possible within the scope of the present invention. Parts can be omitted or changed.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

La présente invention concerne un noyau de fer fixe (61) d'un mécanisme d'actionnement électromagnétique (60) qui comprend : un premier noyau de fer divisé (81) et un second noyau de fer divisé (82) formés chacun à partir d'un empilement d'une pluralité de plaques magnétiques (90) ; et un premier élément de liaison (83), un deuxième élément de liaison (84), un troisième élément de liaison (85) et un quatrième élément de liaison (86) comprenant chacun une plaque magnétique (91). La plaque magnétique (91) a une forme identique à celle des plaques magnétiques (90) et relie le premier noyau de fer divisé (81) au second noyau de fer divisé (82) tout en étant orientée différemment par rapport aux plaques magnétiques (90). Chaque plaque magnétique (91) a une région de fixation destinée à être fixée à une partie de support disposée dans un boîtier de disjoncteur, ladite région de fixation faisant saillie vers le côté externe du premier noyau de fer divisé (81) et/ou du second noyau de fer divisé (82) dans une direction orthogonale à la direction d'empilement de la pluralité de plaques magnétiques (90) comprises dans le premier noyau de fer divisé (81) et le second noyau de fer divisé (82).
PCT/JP2017/029816 2017-08-21 2017-08-21 Dispositif d'actionnement électromagnétique et disjoncteur WO2019038813A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN201780093910.0A CN111033669B (zh) 2017-08-21 2017-08-21 电磁操作机构及断路器
JP2019537442A JP6707204B2 (ja) 2017-08-21 2017-08-21 電磁操作機構および遮断器
PCT/JP2017/029816 WO2019038813A1 (fr) 2017-08-21 2017-08-21 Dispositif d'actionnement électromagnétique et disjoncteur
CN201880052996.7A CN111052288B (zh) 2017-08-21 2018-01-17 断路器
PCT/JP2018/001286 WO2019038946A1 (fr) 2017-08-21 2018-01-17 Disjoncteur
TW107112258A TWI660388B (zh) 2017-08-21 2018-04-10 電磁操作機構及斷路器
TW107122090A TWI670741B (zh) 2017-08-21 2018-06-27 斷路器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/029816 WO2019038813A1 (fr) 2017-08-21 2017-08-21 Dispositif d'actionnement électromagnétique et disjoncteur

Publications (1)

Publication Number Publication Date
WO2019038813A1 true WO2019038813A1 (fr) 2019-02-28

Family

ID=65438572

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/029816 WO2019038813A1 (fr) 2017-08-21 2017-08-21 Dispositif d'actionnement électromagnétique et disjoncteur

Country Status (4)

Country Link
JP (1) JP6707204B2 (fr)
CN (1) CN111033669B (fr)
TW (1) TWI660388B (fr)
WO (1) WO2019038813A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020230684A1 (fr) * 2019-05-16 2020-11-19 三菱電機株式会社 Dispositif de déclenchement de surintensité, et disjoncteur dans lequel un dispositif de déclenchement de surintensité est utilisé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0574625A (ja) * 1991-09-12 1993-03-26 Fuji Electric Co Ltd プランジヤ形ソレノイド
JPH0689808A (ja) * 1992-09-07 1994-03-29 Fuji Electric Co Ltd ソレノイド
JPH06283326A (ja) * 1993-03-29 1994-10-07 Matsushita Refrig Co Ltd ソレノイド
JP2008159270A (ja) * 2005-07-21 2008-07-10 Mitsubishi Electric Corp 遮断器
US20100164662A1 (en) * 2008-12-31 2010-07-01 Ls Industrial Systems Co., Ltd. Monostable permanent magnetic actuator using laminated steel core

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10285847A (ja) * 1997-04-09 1998-10-23 Mitsubishi Electric Corp 永久磁石形モータ
JP3723174B2 (ja) * 2002-11-15 2005-12-07 三菱電機株式会社 操作装置、操作装置の製造方法及びこの操作装置を備えた開閉装置
DE102007028203B3 (de) * 2007-06-15 2008-12-04 Siemens Ag Magnetisches Antriebssystem für eine Schalteinrichtung
CN202049911U (zh) * 2011-03-30 2011-11-23 戴珊珊 电激励永磁开关和电激励永磁开关磁阻电动机
JP5888867B2 (ja) * 2011-03-31 2016-03-22 日本電産コパル株式会社 振動アクチュエータ
CN201975280U (zh) * 2011-04-20 2011-09-14 东南大学 一种直线永磁电机操作机构
CN202736857U (zh) * 2012-07-27 2013-02-13 北京电研华源电力技术有限公司 驱动机构
KR101398720B1 (ko) * 2013-02-18 2014-05-27 엘에스산전 주식회사 전자 개폐 장치
JP6198449B2 (ja) * 2013-05-07 2017-09-20 三菱電機株式会社 電磁石装置
CN108475599B (zh) * 2016-01-14 2020-12-04 三菱电机株式会社 断路器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0574625A (ja) * 1991-09-12 1993-03-26 Fuji Electric Co Ltd プランジヤ形ソレノイド
JPH0689808A (ja) * 1992-09-07 1994-03-29 Fuji Electric Co Ltd ソレノイド
JPH06283326A (ja) * 1993-03-29 1994-10-07 Matsushita Refrig Co Ltd ソレノイド
JP2008159270A (ja) * 2005-07-21 2008-07-10 Mitsubishi Electric Corp 遮断器
US20100164662A1 (en) * 2008-12-31 2010-07-01 Ls Industrial Systems Co., Ltd. Monostable permanent magnetic actuator using laminated steel core

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020230684A1 (fr) * 2019-05-16 2020-11-19 三菱電機株式会社 Dispositif de déclenchement de surintensité, et disjoncteur dans lequel un dispositif de déclenchement de surintensité est utilisé

Also Published As

Publication number Publication date
JP6707204B2 (ja) 2020-06-10
JPWO2019038813A1 (ja) 2019-11-21
TW201913708A (zh) 2019-04-01
CN111033669B (zh) 2021-11-09
TWI660388B (zh) 2019-05-21
CN111033669A (zh) 2020-04-17

Similar Documents

Publication Publication Date Title
JP5585550B2 (ja) 継電器
KR102159887B1 (ko) 전자기 릴레이
US9177743B2 (en) Electromagnetic switching device
JP2015079741A (ja) 電磁接触器
EP3929959A1 (fr) Relais
Cho et al. Novel electromagnetic actuator using a permanent magnet and an inter-locking mechanism for a magnetic switch
WO2019038813A1 (fr) Dispositif d'actionnement électromagnétique et disjoncteur
JP2019036434A (ja) 接続ユニット
WO2019038946A1 (fr) Disjoncteur
KR102234363B1 (ko) 기중 차단기
EP3693988A1 (fr) Système de module d'actionneur linéaire double à contacteur de relais
JP6897409B2 (ja) 電磁継電器
WO2014013798A1 (fr) Dispositif onduleur
US20130207751A1 (en) Magnetic actuator with two-piece side plates for a circuit breaker
JP5995752B2 (ja) 電磁リレー
JP2018152294A (ja) トリガースイッチ
WO2023119895A1 (fr) Dispositif de déclenchement électromagnétique, disjoncteur et carte de distribution
CN214012843U (zh) 电磁接触器
KR101974970B1 (ko) 전자 접촉기
JP7085904B2 (ja) 回路遮断器
JP2020181691A (ja) 回路遮断器
WO2020049761A1 (fr) Relais
WO2020080019A1 (fr) Relais électromagnétique
JP2020123553A (ja) 回路遮断器
CN114520127A (zh) 电磁致动器及断路器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17922657

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019537442

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17922657

Country of ref document: EP

Kind code of ref document: A1