Switchgear

Abstract

To provide a connection structure by which a fixed main circuit in a housing can be more easily detached than in a conventional manner.SOLUTION: A switchgear concerning an embodiment comprises: a housing; a pair of fixed main circuits housed in the housing and constituted of a first main circuit and a second main circuit; a first connection member provided in the first main circuit; and a second connection member provided in the second main circuit, wherein the fixed main circuits are connected by the first connection member and the second connection member, and the first connection member and the second connection member are provided to the fixed main circuits to be movable in connection directions with the fixed main circuits, respectively.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] An embodiment of the present invention relates to a switchgear. [Background technology]

[0002] BACKGROUND ART Conventionally, in connection of solid insulated devices used in solid insulated switchgears and the like, a connection structure is known in which a convex conductor on one side is inserted into a concave main circuit on the other side. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-83142 Summary of the Invention [Problem to be solved by the invention]

[0004] The fixed main circuits housed in conventional solid insulated switchgear use a connection structure in which one concave conductor is inserted into the other convex conductor, meaning that when disassembling each fixed main circuit inside the housing, it can only be removed in one direction.

[0005] One example of a problem to be solved by the present invention is to provide a connection structure that allows a fixed main circuit within a housing to be removed more easily than before. [Means for solving the problem]

[0006] The switchgear according to the embodiment has a housing, a pair of fixed main circuits housed in the housing and consisting of a first main circuit and a second main circuit, a first connecting member provided on the first main circuit, and a second connecting member provided on the second main circuit, and the fixed main circuits are connected by the first connecting member and the second connecting member, and the first connecting member and the second connecting member are each provided so as to be movable relative to the fixed main circuits in the direction of connection with the fixed main circuits. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a side view showing an example of a switchgear according to the present embodiment. [Figure 2] FIG. 2 is a cross-sectional view showing an example of the connection structure of this embodiment. [Figure 3] FIG. 3 is a diagram showing an example of a connecting member according to this embodiment. [Figure 4] FIG. 4 is a cross-sectional view showing an example of the connection structure of this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] The switchgear 11 according to the embodiment will be described below with reference to the drawings. The configuration of the embodiment described below, and the actions and results (effects) brought about by the configuration are merely examples, and are not limited to the following description. Note that in this specification, ordinal numbers are used only to distinguish between parts and components, and do not indicate order or priority.

[0009] 1 is a side view of a switchgear 11 according to this embodiment. The switchgear 11 according to this embodiment is a solid insulated switchgear. However, the switchgear 11 is not limited to this.

[0010] As shown in FIG. 1, the switchgear 11 includes an operating mechanism housed in a housing 100, a fixed main circuit 12, a connecting member 13, a circuit breaker 14, a disconnecting switch 15, a grounding device 16, and other devices.

[0011] The housing 100 is made of, for example, metal and is configured in the shape of a rectangular parallelepiped box. The housing 100 is provided with an openable door 17. Fig. 1 shows a side view of the door 17 in an open state, and opening the door 17 allows the device to be operated.

[0012] The circuit breaker 14 is a device for opening and closing an electric circuit. The disconnecting switch 15 is a device for opening and closing an electric circuit only when no current is flowing through the electric circuit. The grounding device 16 is a device for connecting to an object to ground the object. For example, the circuit breaker 14 is a device that integrates an operating mechanism, a fixed main circuit 12, and a connecting member 13 into a single unit.

[0013] The fixed main circuit 12 passes through a circuit breaker 14 , a disconnector 15 and a grounding device 16 .

[0014] In the following drawings, for convenience, two mutually orthogonal directions are defined. The Y direction is the connection direction (axial direction) along the central axis A of the connection member 13, and may also be referred to as the up-down direction. The X direction is the direction along the radial direction of the connection member 13, which is orthogonal to the central axis A, and may also be referred to as the left-right direction.

[0015] Fig. 2 is a cross-sectional view showing the connection structure between fixed main circuits 12 of this embodiment. The left side of the central axis A shows the positional relationship when the connection members 13 are connected vertically, and the right side shows the positional relationship when the connection members 13 are separated vertically. As shown in Fig. 2, the connection structure has two fixed main circuits 12, two connection members 13, a first interface rubber 1, a second interface rubber 2, and a third interface rubber 3. The first interface rubber 1 is an example of a first elastic member, the second interface rubber 2 is an example of a second elastic member, and the third interface rubber 3 is an example of a third elastic member.

[0016] The fixed main circuit 12 has an upper fixed main circuit 4 located above (in the +Y direction) the fixed main circuit 12 and a lower fixed main circuit 5 located below (in the -Y direction) the fixed main circuit 12. The upper fixed main circuit 4 is an example of a first main circuit, and the lower fixed main circuit 5 is an example of a second main circuit.

[0017] The upper fixed main circuit 4 has an upper conductor 41 covered with an upper insulating part 40 of the upper fixed main circuit 4. The upper insulating part 40 is made of an insulating synthetic resin material such as epoxy resin. The upper insulating part 40 is an example of a first insulating part.

[0018] The upper conductor 41 is made of a highly conductive metal material such as oxygen-free copper. The upper conductor 41 has a recessed portion recessed upward on its lower surface 42. The recessed portion of the upper conductor 41 is exposed to the outside from the upper insulating part 40, and conducts electricity by making cylindrical side contact with the outer peripheral surface of the upper protrusion 62 of the upper connecting conductor 61 of the upper connecting member 6 via a metal contact. The lower surface 42 is an example of a first surface.

[0019] The lower fixed main circuit 5 has the same configuration as the upper fixed main circuit 4. Specifically, it has a lower conductor 51 covered with a lower insulating part 50 of the lower fixed main circuit 5. The lower insulating part 50 is made of an insulating synthetic resin material such as epoxy resin. The lower insulating part 50 is an example of a second insulating part.

[0020] The lower conductor 51 is made of a highly conductive metal material such as oxygen-free copper. The lower conductor 51 has a recessed top surface 52 that is recessed downward. The recessed portion of the lower conductor 51 is exposed to the outside from the lower insulating portion 50, and conducts electricity by contacting the cylindrical side surface with the outer circumferential surface of the downward protrusion 72 of the lower connecting conductor 71 of the lower connecting member 7 via a metal contact. The top surface 52 is an example of a second surface.

[0021] The connection member 13 is located between the upper fixed main circuit 4 and the lower fixed main circuit 5. The connection member 13 connects the upper fixed main circuit 4 and the lower fixed main circuit 5. The connection member 13 has an upper connection member (first connection member) 6 provided on the upper fixed main circuit 4 and a lower connection member (second connection member) 7 provided on the lower fixed main circuit 5.

[0022] The upper connection member 6 has an upper connection conductor 61 covered by an upper connection insulator 60 of the upper connection member 6. The upper connection conductor 61 has a cylindrical shape extending in the direction of connection between the upper connection member 6 and the upper fixed main circuit 4. The upper connection conductor 61 has a lower contact surface 63 that protrudes downward from a bottom surface 64 of the upper connection insulator 60. It has an upper protrusion 62 that protrudes upward from an upper surface 65 of the upper connection member 6.

[0023] The upper connection insulating portion 60 is made of an insulating synthetic resin material such as epoxy resin. The upper connection conductor 61 is made of a highly conductive metal material such as oxygen-free copper. The upper connection insulating portion 60 is an example of a third insulating portion.

[0024] The lower connecting member 7 has the same configuration as the upper connecting member 6. It has a lower connecting conductor 71 covered by a lower connecting insulating portion 70 of the lower connecting member 7. The lower connecting conductor 71 has a cylindrical shape extending in the connection direction between the lower connecting member 7 and the lower fixed main circuit 5. The lower connecting conductor 71 has an upper contact surface 73 that protrudes upward from an upper surface 75 of the lower connecting insulating portion 70. It has a downward convex portion 72 that protrudes downward from a bottom surface 74 of the lower connecting member 7.

[0025] The lower connection insulating portion 70 is made of an insulating synthetic resin material such as epoxy resin. The lower connection conductor 71 is made of a highly conductive metal material such as oxygen-free copper. The lower connection insulating portion 70 is an example of a fourth insulating portion.

[0026] The lower contact surface 63 of the upper connecting conductor 61 and the upper contact surface 73 of the lower connecting conductor 71 are substantially flat and are electrically connected by being in surface contact with each other. A second interface rubber 2 is provided between the upper connecting member 6 and the lower connecting member 7, covering the outer peripheries of the lower contact surface 63 and the upper contact surface 73.

[0027] The upper and lower portions have the same shape, with the second interface rubber 2 as the boundary. That is, the upper and lower portions have the same shape, with the lower contact surface 63 of the upper connecting conductor 61 and the upper contact surface 73 of the lower connecting conductor 71 as the boundary. The boundary between the lower contact surface 63 and the upper contact surface 73 is defined as a center line B.

[0028] The second interface rubber 2 is an insulating rubber, and is provided in a position that covers the outer periphery of the lower contact surface 63 and the upper contact surface 73. The outer periphery of the second interface rubber 2 is covered by the upper connecting member 6 and the lower connecting member 7 when the upper connecting member 6 and the lower connecting member 7 are connected.

[0029] When the upper connection member 6 and the lower connection member 7 are connected, the second interface rubber 2 can seal the gap around the periphery of the contact surface between the upper connection member 6 and the lower connection member 7. This makes it possible to suppress discharge from the conductor to the outside when current is applied.

[0030] A first interface rubber 1 is provided between the upper fixed main circuit 4 and the upper connecting member 6. The upper connecting member 6 can move up and down relative to the upper fixed main circuit 4 due to elastic deformation of the first interface rubber 1. The right side of Figure 2 shows that the upper connecting member 6 has moved upward due to elastic deformation of the first interface rubber 1.

[0031] A third interface rubber 3 is provided between the lower fixed main circuit 5 and the lower connecting member 7. The lower connecting member 7 can move up and down relative to the lower fixed main circuit 5 due to elastic deformation of the third interface rubber 3. The right side of Fig. 2 shows that the lower connecting member 7 has moved downward due to elastic deformation of the third interface rubber 3. The left side of Fig. 2 shows that the conductors of the upper connecting member 6 and the lower connecting member 7 have come into contact.

[0032] The first interface rubber 1 is composed of two layers: an insulating rubber 10 located on the outer periphery of the upper convex portion 62 of the upper connecting conductor 61, and a conductive rubber 20 located on the outer periphery of the insulating rubber 10. A part of the first interface rubber 1 is exposed to the outside from between the upper fixed main circuit 4 and the upper connecting member 6.

[0033] The third interface rubber 3 is composed of two layers: insulating rubber 30 located on the outer periphery of the lower convex portion 72 of the lower connecting conductor 71, and conductive rubber 31 located on the outer periphery of the insulating rubber 30. A part of the third interface rubber 3 is exposed to the outside from between the lower fixed main circuit 5 and the lower connecting member 7.

[0034] The first interface rubber 1, the second interface rubber 2, and the third interface rubber 3 are cylindrical. The first interface rubber 1, the second interface rubber 2, and the third interface rubber 3 seal the gaps that form between the upper fixed main circuit 4, the lower fixed main circuit 5, the upper connecting member 6, and the lower connecting member 7, and suppress outward discharge between the upper fixed main circuit 4, the lower fixed main circuit 5, the upper connecting member 6, and the lower connecting member 7 when current is applied.

[0035] The switchgear 11 includes a housing 100, a pair of fixed main circuits 12 housed in the housing 100 and configured with a first main circuit and a second main circuit, a first connecting member provided in the first main circuit, and a second connecting member provided in the second main circuit, the fixed main circuit 12 is connected by the first connecting member and the second connecting member, and the first connecting member and the second connecting member are provided so as to be movable relative to the fixed main circuit 12 in the connection direction with the fixed main circuit 12. For example, the first connecting member and the second connecting member are provided so as to be movable relative to the fixed main circuit 12 in the connection direction in which the fixed main circuit 12 is connected to the first connecting member and the second connecting member.

[0036] This allows the pair of fixed main circuits 12 to be separated from each other by moving the first connecting member and the second connecting member in the connection direction, making it possible to easily remove the unit of the fixed main circuits 12 and the connecting member 13.

[0037] The power supply includes a first elastic member provided between the first main circuit and the first connecting member, and a third elastic member provided between the second main circuit and the second connecting member, and the first connecting member and the second connecting member are provided so as to be movable in the direction of connection with the fixed main circuit by elastic deformation of the first elastic member and the third elastic member. This allows the pair of connecting members 13 to move in the direction of connection by the elastic member between the fixed main circuit 12 and the connecting member 13, and the pair of fixed main circuits 12 can be separated from each other, making it possible to easily remove the unit of the fixed main circuit 12 and the connecting member 13.

[0038] The first and second connection members each have a conductor and an insulator covering the conductor, and the contact surfaces where the first and second connection members come into contact have the conductor protruding from the insulator. As a result, the contact surfaces where the connection members 13 come into contact are flat, which reduces the movement distance to release the contact, and therefore reduces the space required for removal compared to contact based on a fitting of concave and convex shapes.

[0039] The pair of fixed main circuits 12 have the same shape, and the first and second connecting members also have the same shape. This reduces the number of component patterns. Therefore, when producing multiple fixed main circuits 12 and connecting members 13, reducing the number of component patterns increases production efficiency.

[0040] The outer surfaces of the upper fixed main circuit 4, the lower fixed main circuit 5, the upper connecting member 6, and the lower connecting member 7 are made of a conductive material. In addition, the top or bottom surfaces of the upper fixed main circuit 4, the lower fixed main circuit 5, the upper connecting member 6, and the lower connecting member 7 that come into contact with the conductive rubber are made of a conductive material. For example, the conductive material is made by painting. An example of the conductive material painting is carbon painting.

[0041] Specifically, the outer surface of the upper fixed main circuit 4 and the surface of the lower surface 42 that comes into contact with the conductive rubber 20 of the first interface rubber 1 are conductive painted surfaces. The outer surface of the lower fixed main circuit 5 and the surface of the upper surface 52 that comes into contact with the conductive rubber 31 of the third interface rubber 3 are conductive painted surfaces 9.

[0042] Additionally, the outer surface of the upper connection member 6 and the surface of the top surface 65 that comes into contact with the conductive rubber 20 of the first interface rubber 1 are conductive painted surfaces. The outer surface of the lower connection member 7 and the surface of the bottom surface 74 that comes into contact with the conductive rubber 31 of the third interface rubber 3 are conductive painted surfaces.

[0043] By bringing the exterior grounding layers on the outer surfaces of the upper fixed main circuit 4, the lower fixed main circuit 5, the upper connecting member 6, and the lower connecting member 7 into contact with the conductive rubber, the deterioration of the insulating performance of the first interface rubber 1 and the second interface rubber 2 can be suppressed.

[0044] That is, the inside of the first elastic member and the third elastic member is made of an insulating material, and the outer periphery of the insulating material is made of a conductive material, and the outer surfaces of the fixed main circuit 12, the first elastic member, and the third elastic member, and the surfaces of the fixed main circuit 12, the first connecting member, and the second connecting member that come into contact with the parts of the first elastic member and the third elastic member that are made of a conductive material are conductive.

[0045] As a result, even in a configuration in which the elastic member is exposed to the outside, by making the outer surfaces of the fixed main circuit 12 and the connecting member 13 out of conductive materials, it is possible to suppress a decrease in the insulating performance of the elastic member.

[0046] A first wall portion 43 that surrounds at least a part of the outer periphery of the first interface rubber 1 is provided on the lower surface 42 of the upper fixed main circuit 4. A second wall portion 66 that surrounds at least a part of the outer periphery of the first interface rubber 1 is provided on the upper surface 65 of the upper connecting member 6.

[0047] A sixth wall portion 53 surrounding at least a part of the outer periphery of the third interface rubber 3 is provided on the upper surface 52 of the lower fixed main circuit 5. A fifth wall portion 77 surrounding at least a part of the outer periphery of the third interface rubber 3 is provided on the bottom surface 74 of the lower connecting member 7.

[0048] A third wall portion 67 is provided on the bottom surface 64 of the upper connecting member 6, surrounding at least a part of the outer periphery of the second interface rubber 2. A fourth wall portion 76 is provided on the top surface 75 of the lower connecting member 7, surrounding at least a part of the outer periphery of the second interface rubber 2.

[0049] By providing at least one of the first wall portion 43 and the second wall portion 66, it is possible to control the shape of the outward bulge that occurs when the elastic member provided on the plane elastically deforms. By providing both, it is possible to further control the bulge shape. The same applies to the third wall portion 67 and the fourth wall portion 76. The same applies to the fifth wall portion 77 and the sixth wall portion 53.

[0050] That is, at least one of the first main circuit and the first connecting member has a wall portion surrounding at least a portion of the outer periphery of the first elastic member, and at least one of the second main circuit and the second connecting member has a wall portion surrounding at least a portion of the outer periphery of the third elastic member. This makes it possible to control the outward bulging shape of the elastic member provided on a flat surface during elastic deformation. As a result, the shape during elastic deformation can be kept the same each time, compared to when there is no wall portion.

[0051] Fig. 3 is a perspective view showing a connecting member 13 of this embodiment. As shown in Fig. 3, the connecting member 13 has an upper connecting member 6, a lower connecting member 7, a first interface rubber 1, a second interface rubber 2, and a third interface rubber 3.

[0052] The lower connection member 7 has an upper contact surface 73 of a lower connection conductor 71 that protrudes upward from an upper surface 75 of the lower connection insulator 70. The lower connection conductor 71 is molded integrally with the lower connection insulator 70.

[0053] The lower connection insulator 70 has four fixing holes 21 through which the bolts 25 are inserted. The upper surface of the upper contact surface 73 is substantially flat. The upper connection member 6 has a similar configuration, with four fixing holes 26 provided at the same positions as the fixing holes 21.

[0054] The fixing holes 26 of the upper connecting member 6 are aligned with the fixing holes 21 of the lower connecting member 7, and the four locations are fixed by fixing members consisting of bolts 25 and nuts 24. This allows surface pressure to be applied to the contact surfaces between the upper connecting conductor 61 of the upper connecting member 6 and the lower connecting conductor 71 of the lower connecting member 7. Specifically, surface pressure can be applied between the lower contact surface 63 and the upper contact surface 73.

[0055] The fixing hole has a conductive interior. For example, a conductive paint may be applied to the interior. Alternatively, a conductive collar (metal, etc.) may be provided inside. For example, as one manufacturing method, it may be molded by integral casting. In this way, even if the distance between the conductor and the fixing hole is short, the electric field can be alleviated by making the interior of the fixing hole conductive. In other words, the electric field strength can be reduced, and leakage current can be suppressed.

[0056] Next, the upper connecting member 6 has four ribs 27 that increase in thickness in the upward direction provided between the fixing holes 26. In other words, between the fixing holes 26, there are four ribs 27 that are thicker than the thickness at the positions where the fixing holes 26 are provided in the upper connecting member 6. The same is true for the lower connecting member 7, which has four ribs 22.

[0057] For example, the first connecting member and the second connecting member have a plurality of fixing holes for fixing with a plurality of fixing members, and have ribs whose thickness between the plurality of fixing holes is thicker than the thickness at the fixing hole locations. This allows the fixing members to apply surface pressure via the ribs, making it possible to achieve a configuration that can withstand, for example, a short-term current withstand test. In addition, the ribs can increase the strength of the connecting member 13, and the fixing members can apply load to the connecting member 13.

[0058] To remove the upper fixed main circuit 4, for example, the fixing members consisting of the bolts 25 and nuts 24 are removed. Then, the upper connecting member 6 is moved axially upward, compressing the first interface rubber 1. A gap is created between the upper connecting member 6 and the lower connecting member 7. This allows the upper fixed main circuit 4 to be removed by moving it radially. The same applies to the lower fixed main circuit 5.

[0059] Figure 4 is a cross-sectional view taken along the boundary between the fixing holes of the connection structure of this embodiment. Figure 4 shows the upper connecting member 6, the lower connecting member 7, the first interface rubber 1, the second interface rubber 2, and the third interface rubber 3. The upper connecting member 6 and the lower connecting member 7 are fixed together by fixing members, namely, bolts 25 and nuts 24.

[0060] 4, a space is provided in the height direction between the rib 27 of the upper connecting member 6 and the bolt 25, allowing the bolt 25 to be removed. Similarly, in the lower connecting member 7, a space is provided in the height direction between the rib 22 of the lower connecting member 7 and the nut 24.

[0061] As described above, the switchgear has a housing, a pair of fixed main circuits housed in the housing and consisting of a first main circuit and a second main circuit, a first connecting member provided on the first main circuit, and a second connecting member provided on the second main circuit, and the fixed main circuits are connected by the first connecting member and the second connecting member, and the first connecting member and the second connecting member are each provided so as to be movable relative to the fixed main circuits in the direction of connection with the fixed main circuits.

[0062] This allows the pair of fixed main circuits to be separated by moving the first connecting member and the second connecting member in the direction of connection with the fixed main circuit, making it possible to easily remove the unit of the fixed main circuit and the connecting member.

[0063] In addition, this embodiment has a first elastic member provided between the first main circuit and the first connecting member, and a third elastic member provided between the second main circuit and the second connecting member, and the first connecting member and the second connecting member are arranged to be movable in the connection direction with the fixed main circuit by elastic deformation of the first elastic member and the third elastic member.

[0064] This allows the first connecting member and the second connecting member to be moved in the connection direction by the elastic member between the fixed main circuit and the connecting member, and the pair of fixed main circuits can be separated from each other, so that the unit of the fixed main circuit and the connecting member can be easily removed.

[0065] In addition, in this embodiment, the first connecting member and the second connecting member have a conductor and an insulator covering the conductor, and the surfaces where the first connecting member and the second connecting member abut have the conductor protruding from the insulator.

[0066] As a result, the contact surfaces where the connecting members come into contact are flat, so the movement distance to release the contact can be reduced, and the space required for removal can be made smaller than when contact is made by fitting a concave-convex shape.

[0067] In this embodiment, the pair of fixed main circuits have the same shape, and the first connecting member and the second connecting member also have the same shape.

[0068] This reduces the number of component patterns, which can improve production efficiency when manufacturing a plurality of fixed main circuits and connecting members.

[0069] In this embodiment, the first connecting member and the second connecting member have a plurality of fixing holes for fixing with a plurality of fixing members, and the thickness between the plurality of fixing holes has ribs that are thicker than the thickness at the positions of the fixing holes.

[0070] This allows the ribs to apply surface pressure to the fixing member, making it possible to create a configuration that can withstand short-term current withstand tests.In addition, the ribs increase the thickness of the connecting member, increasing its strength, allowing the fixing member to apply pressure to the connecting member.

[0071] In addition, in this embodiment, at least one of the first main circuit and the first connecting member has a wall portion that surrounds at least a portion of the outer periphery of the first elastic member, and at least one of the second main circuit and the second connecting member has a wall portion that surrounds at least a portion of the outer periphery of the third elastic member.

[0072] This makes it possible to control the shape of the outward bulge that occurs when the elastic member provided on the flat surface elastically deforms, and as a result, the shape of the elastic member can be repeatedly maintained the same during elastic deformation, compared to when there is no wall portion.

[0073] In addition, in this embodiment, the first elastic member and the third elastic member have an inner surface made of insulating material and an outer periphery of the insulating material made of conductive material, and the outer surfaces of the fixed main circuit, the first elastic member, and the third elastic member, and the surfaces of the fixed main circuit, the first connecting member, and the second connecting member that come into contact with the portions of the first elastic member and the third elastic member made of conductive material are conductive.

[0074] As a result, even in a configuration in which the elastic member is exposed to the outside, by using conductive materials for the outer surfaces of the fixed main circuit and the connecting member, it is possible to suppress deterioration in the insulating performance of the elastic member.

[0075] In this embodiment, the inside of the fixing hole is conductive.

[0076] As a result, even if the distance between the conductor and the fixing hole is short, the electric field can be alleviated by making the inside of the fixing hole conductive. In other words, the electric field strength can be reduced, making it less likely that a current leak will occur.

[0077] Although several embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, as well as within the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0078] 1: First interface rubber (elastic member) 2: Second interface rubber (elastic member) 3: Third interface rubber (elastic member) 4: Upper fixed main circuit (first main circuit) 5: Lower fixed main circuit (second main circuit) 6: Upper connecting member (first connecting member) 7: Lower connecting member (second connecting member) 10, 30: Insulating rubber 11: Switchgear 12:Fixed main circuit 13: Connection parts 20, 31: Conductive rubber 21, 26: Fixed hole 22, 27: Ribs 40: Upper insulation part 41: Upper conductor 50: Lower insulation part 51: Lower conductor 60: Upper connection insulation part 61: Upper connecting conductor 70: Lower connection insulation part 71: Lower connecting conductor 100: Housing

Claims

1. The housing and a pair of fixed main circuits housed in the housing and configured by a first main circuit and a second main circuit; a first connecting member provided in the first main circuit and a second connecting member provided in the second main circuit; the fixed main circuit is connected by the first connecting member and the second connecting member, the first connecting member and the second connecting member are provided so as to be movable relative to the fixed main circuit in a direction of connection with the fixed main circuit; Switchgear.

2. a first elastic member provided between the first main circuit and the first connecting member; a third elastic member provided between the second main circuit and the second connecting member, the first connecting member and the second connecting member are provided so as to be movable in a direction of connection with the fixed main circuit by elastic deformation of the first elastic member and the third elastic member, The switchgear according to claim 1 .

3. the first connection member and the second connection member each include a conductor and an insulator covering the conductor; a surface where the first connection member and the second connection member abut on each other, the conductor protruding from the insulator; The switchgear according to claim 1 .

4. The pair of fixed main circuits have the same shape, and the first connecting member and the second connecting member also have the same shape. The switchgear according to claim 1 .

5. The first connecting member and the second connecting member are a plurality of fixing holes for being fixed by a plurality of fixing members; The thickness between the plurality of fixing holes is greater than the thickness at the positions of the fixing holes. The switchgear according to claim 1 .

6. At least one of the first main circuit and the first connecting member has a wall portion surrounding at least a part of the outer periphery of the first elastic member, At least one of the second main circuit and the second connecting member has a wall portion surrounding at least a part of the outer periphery of the third elastic member. The switchgear according to claim 2.

7. the first elastic member and the third elastic member have an inner surface made of an insulating material and an outer periphery of the insulating material made of a conductive material; outer surfaces of the fixed main circuit, the first elastic member, and the third elastic member, and surfaces of the fixed main circuit, the first connecting member, and the second connecting member that come into contact with portions of the first elastic member and the third elastic member that are made of a conductive material are conductive. The switchgear according to claim 2.

8. The fixing hole has a conductive interior. The switchgear according to claim 5.

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