Capacitor installation structure and switch device

Abstract

The invention provides an installation structure of a capacitor and switch equipment, and relates to the technical field of capacitor installation, and the installation structure of the capacitor comprises a conductor support which is used for supporting the capacitor and is electrically connected with one end of the capacitor; and the shell is used for covering the capacitor, and the shell is also used for grounding the other end of the capacitor. According to the capacitor mounting structure and the switch equipment provided by the invention, the problem that the normal use of the circuit breaker is easily influenced because the circuit breaker needs to be dismounted for maintenance when the capacitor breaks down in a scene of providing protection for the capacitor in the related technology is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of capacitor installation, and in particular to a capacitor installation structure and a switch device. BACKGROUND

[0002] A gas insulated switchgear (GIS) is a high-voltage power distribution device integrating multiple power elements, and is mainly used for safe, compact, and reliable power control and protection of a power system.

[0003] In the related art, the GIS includes a conductor support and a circuit breaker and a capacitor arranged on the conductor support, and the capacitor is installed inside a tank of the circuit breaker. In use, the conductor support is connected to a line to play a function of the circuit breaker protecting the circuit, and the capacitor is used to suppress the high-amplitude recovery voltage rising rate when breaking a short-circuit current, and the tank of the circuit breaker can also provide effective protection for the capacitor.

[0004] However, when the capacitor fails, the circuit breaker needs to be removed for maintenance, which easily affects the normal use of the circuit breaker. SUMMARY

[0005] The present application provides a capacitor installation structure and a switch device to solve the problem in the related art that when the capacitor fails, the circuit breaker needs to be removed for maintenance, which easily affects the normal use of the circuit breaker, in the scenario of providing protection for the capacitor.

[0006] In one aspect, the present application provides a capacitor installation structure, comprising:

[0007] a conductor support configured to support a capacitor and electrically connected to one end of the capacitor; and an outer shell configured to cover the capacitor and ground the other end of the capacitor.

[0008] In one possible implementation, the outer shell includes a shell and a cover plate, the conductor support is insulatively connected with a connecting portion, the shell is detachably connected with the connecting portion, the shell has an installation cavity for accommodating the capacitor and an installation opening in communication with the installation cavity;

[0009] the cover plate is detachably connected with the shell, and the cover plate closes the installation opening;

[0010] At least one of the cover plate and the shell is configured to be in contact with the capacitor and is grounded.

[0011] In one possible implementation, a transition plate is further included, the transition plate is configured to be arranged on the capacitor, and the transition plate is in contact with both the shell and the cover plate.

[0012] In a possible implementation, the shell is provided with a stepped groove corresponding to the edge of one end of the mounting hole, the transition plate is embedded in the stepped groove, and the cover plate is abutted against one side of the transition plate away from the shell, so that the shell and the cover plate jointly clamp the transition plate.

[0013] In a possible implementation, the sealing rings are further included, at least one of the sealing rings is used to seal the gap between the shell and the cover plate, and at least one of the sealing rings is used to seal the gap between the shell and the connecting portion.

[0014] In a possible implementation, the diameter of the shell gradually increases from the end away from the conductor support to the end close to the conductor support, so that the shell has a conical structure.

[0015] In a possible implementation, the conductor support is provided with an elastic contact piece, the elastic contact piece is used to elastically contact the capacitor, and the capacitor is electrically connected to the conductor support.

[0016] In a possible implementation, the elastic contact piece is a conductive spring, the conductor support is provided with a mounting groove, the conductive spring is connected to the conductor support and partially accommodated in the mounting groove, and the conductive spring is used to elastically abut against the capacitor.

[0017] In a possible implementation, the conductor support is provided with a shielding portion, and the shielding portion is used to surround the expansion joint in the capacitor.

[0018] In another aspect, the application provides a switch device, which includes: a circuit device, a capacitor, and the mounting structure of the capacitor according to any one of the foregoing embodiments, the circuit device and the capacitor are both electrically connected to the conductor support in the mounting structure of the capacitor, and the capacitor is located outside the circuit device.

[0019] The application provides a mounting structure of a capacitor and a switch device, wherein the mounting structure of the capacitor is provided with: a conductor support, which is used to support the capacitor and is electrically connected to one end of the capacitor; and a shell, which is used to cover the capacitor and is further used to ground the other end of the capacitor. During installation, the capacitor can be connected to the conductor support and installed outside the tank of the circuit breaker, and then the capacitor is effectively protected by the shell. Therefore, when the capacitor fails, only the shell needs to be removed for maintenance, without the need to remove the circuit breaker, thereby avoiding affecting the normal use of the circuit breaker. The problem that, in the related art, when the capacitor is protected, the circuit breaker needs to be removed for maintenance when the capacitor fails, and the normal use of the circuit breaker is affected, is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application.

[0021] Figure 1 A schematic view of a mounting structure of a capacitor according to an embodiment of the application;

[0022] Figure 2 A schematic view of a mounting structure of a capacitor according to an embodiment of the application; Figure 1 A schematic view of a mounting structure of a transition plate according to an embodiment of the application;

[0023] Figure 3 A schematic view of a mounting structure of an elastic contact according to an embodiment of the application; Figure 1 A schematic view of a mounting structure of an elastic contact according to an embodiment of the application;

[0024] Figure 4 A schematic view of a partial structure of a switch device according to an embodiment of the application.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 10 - capacitor; 11 - expansion joint;

[0027] 20 - circuit device;

[0028] 100 - conductor support; 110 - mounting groove;

[0029] 200 - connecting portion;

[0030] 300 - housing; 310 - housing body; 311 - mounting cavity; 312 - mounting opening; 313 - stepped groove; 314 - annular flange; 320 - cover plate;

[0031] 400 - transition plate;

[0032] 500 - sealing ring;

[0033] 600 - elastic contact;

[0034] 700 - shielding portion.

[0035] The above-described drawings show certain embodiments of the application, and that the following detailed description illustrates such embodiments by using reference numerals. The drawings and description are not intended to constrain the scope of the inventive concept in any way but serve to explain the inventive concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description below refers to the accompanying drawings, which show, by way of example, specific embodiments with which the application can be practiced. The following description is not to be taken in a limiting sense but is made merely for the purpose of describing the general nature of the application. The various examples of implementations described herein are not intended to be exhaustive or to be the only possible implementations of the application. Indeed, the application can be practiced in a variety of ways and with a variety of implementations that will be apparent to those skilled in the art.

[0037] In the related art, when a circuit breaker opens a large current circuit, an arc is generated between the contacts in the power system. After the arc is extinguished, the voltage between the contacts is re-established, which is referred to as "recovery voltage". Suppressing the recovery voltage is an important part of improving the performance and reliability of the circuit breaker.

[0038] A gas insulated switchgear (GIS) is a high-voltage power distribution device integrating multiple power elements, and is mainly used for safe, compact, and reliable power control and protection of a power system.

[0039] The GIS includes a conductor support and a circuit breaker and a capacitor disposed on the conductor support, and the capacitor is installed inside a tank of the circuit breaker. In use, the conductor support is connected to a circuit to play a role of protecting the circuit, and the capacitor suppresses the high-amplitude recovery voltage rise rate when opening a short-circuit current, and the tank of the circuit breaker can also provide effective protection for the capacitor.

[0040] However, when the capacitor fails, the circuit breaker needs to be removed for maintenance, which easily affects the normal use of the circuit breaker.

[0041] Therefore, embodiments of the present application provide a capacitor mounting structure and a switchgear. The capacitor mounting structure includes a conductor support configured to support the capacitor and electrically connected to one end of the capacitor, and a housing configured to cover the capacitor and ground the other end of the capacitor. The capacitor is connected to the conductor support and mounted outside the tank of the circuit breaker, and then the housing provides effective protection for the capacitor. Thus, when the capacitor fails, only the housing needs to be removed for maintenance, without the need to remove the circuit breaker, thereby not easily affecting the normal use of the circuit breaker. The problem of the related art that when the capacitor is protected, the circuit breaker needs to be removed for maintenance when the capacitor fails, which easily affects the normal use of the circuit breaker, is solved.

[0042] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0043] As Figure 1 shown, the mounting structure of the capacitor provided by the embodiment of the application comprises:

[0044] a conductor support 100, the conductor support 100 is used for supporting the capacitor 10 and electrically connecting with one end of the capacitor 10;

[0045] a shell 300, the shell 300 is used for covering the capacitor 10, and the shell 300 is also used for grounding the other end of the capacitor 10.

[0046] It should be noted that the conductor support 100 is made of conductive material, such as copper, aluminum, etc. A plurality of circuit breakers are also used for mounting on the conductor support 100, and the specific shape of the conductor support 100 is not limited.

[0047] Secondly, the capacitor 10 is mounted on the conductor support 100 and located outside the circuit breaker. And one end of the capacitor 10 in the extension direction is electrically connected with the conductor support 100, and the other end of the capacitor 10 in the extension direction is grounded through the shell 300. That is, the other end of the capacitor 10 is electrically connected with the shell 300, and the shell 300 is grounded. Wherein, the capacitor 10 can adopt existing products, and the internal structure is not limited.

[0048] So that the shell 300 not only completes the grounding of the capacitor 10, but also has a better protection effect on the capacitor 10, reducing the possibility of damage of the capacitor 10 in the working process.

[0049] And when the capacitor 10 fails, only the shell 300 needs to be removed for maintenance, without the need to remove the circuit breaker, thereby not easily affecting the normal use of the circuit breaker. The problem that in the related art, when the capacitor 10 is provided with protection, the circuit breaker needs to be removed for maintenance when the capacitor 10 fails, which easily affects the normal use of the circuit breaker, is solved.

[0050] As Figure 1 shown, in some embodiments, the shell 300 comprises a shell body 310 and a cover plate 320, the conductor support 100 is insulatively connected with a connecting part 200, the shell body 310 is detachably connected with the connecting part 200, the shell body 310 has a mounting cavity 311 for accommodating the capacitor 10 and a mounting opening 312 in communication with the mounting cavity 311;

[0051] the cover plate 320 is detachably connected with the shell body 310, and the cover plate 320 closes the mounting opening 312;

[0052] At least one of the cover plate 320 and the shell body 310 is used for contacting with the capacitor 10 and is grounded.

[0053] In this embodiment, the shell 310 is a cylindrical structure, that is, the shell 310 has an opening at each of the opposite ends in the extending direction. At this time, one end of the shell 310 in the extending direction is connected to the connecting portion 200 on the conductor support 100, and in implementation, the shell 310 can be detachably connected to the connecting portion 200 by screwing, buckling or other means. Moreover, the connecting portion 200 can be in a ring structure, so that the conductor support 100, the connecting portion 200 and the shell 310 jointly enclose the mounting cavity 311, and the mounting cavity 311 is inside the shell 310.

[0054] The connecting portion 200 can be connected to the conductor support 100 by screwing, buckling or other means. The connecting portion 200 can be made of insulating materials such as rubber, plastic and the like. Of course, when the connecting portion 200 is made of conductive materials such as copper, aluminum and the like, the connecting portion 200 can be connected to the conductor support 100 through an insulating part such as a rubber layer, a plastic layer or an insulator.

[0055] The opening of the shell 310 away from the conductor support 100 is formed as a mounting port 312 that is in communication with the mounting cavity 311. This allows the capacitor 10 to be inserted into the shell 310 through the mounting port 312 and accommodated in the mounting cavity 311. It should be noted that the diameter of the mounting port 312 is greater than or equal to the diameter of the capacitor 10, so that the capacitor 10 can freely enter and exit the mounting port 312.

[0056] The cover plate 320 can be detachably connected to the end of the shell 310 away from the conductor support 100 by screwing, buckling or other means, and the cover plate 320 covers the mounting port 312. Thus, the mounting cavity 311 can be closed by the cover plate 320, and the capacitor 10 is completely wrapped inside the shell 300, thereby providing effective protection for the capacitor 10.

[0057] One end of the capacitor 10 towards the conductor support 100 is electrically connected to the conductor support 100, and the other end of the capacitor 10 away from the conductor support 100 is in contact with at least one of the cover plate 320 and the shell 310, and at least one of the cover plate 320 and the shell 310 is grounded. That is, the other end of the capacitor 10 away from the conductor support 100 can be grounded through the cover plate 320; it can also be grounded through the shell 310; it can also be grounded through both the cover plate 320 and the shell 310.

[0058] Therefore, when the capacitor 10 is installed, the shell 310 can be connected to the conductor support 100 first, and then the capacitor 10 can be inserted into the mounting cavity 311 from the mounting port 312, and one end of the capacitor 10 towards the conductor support 100 is electrically connected to the conductor support 100. Finally, the cover plate 320 is installed to restrict the capacitor 10 in the mounting cavity 311. This makes the installation process of the capacitor 10 more convenient.

[0059] During installation, the end of capacitor 10 away from conductor support 100 can be placed against cover plate 320, and the end of capacitor 10 away from conductor support 100 can be placed against housing 310. Then, at least one of cover plate 320 or housing 310 can be grounded, thereby grounding capacitor 10 through cover plate 320 or housing 310.

[0060] In this embodiment, taking the housing 310 as grounded as an example, the housing 310 can be grounded by connecting a grounding wire through screws or other means, and can also be connected to other grounded components, such as the protective housing of a nearby circuit breaker that is already grounded.

[0061] In other embodiments, the housing 300 may also be configured as a protective cover of an integral structure.

[0062] like Figure 1 As shown, in some embodiments, the capacitor mounting structure further includes a transition plate 400, which is disposed on the capacitor 10 and contacts both the housing 310 and the cover plate 320.

[0063] It should be noted that the transition plate 400 is made of conductive materials, such as copper or aluminum.

[0064] In this embodiment, the transition plate 400 is located between the end of the capacitor 10 away from the conductor support 100 and the cover plate 320. The transition plate 400 can be fastened to the end of the capacitor 10 away from the conductor support 100 by screws. In other embodiments, the transition plate 400 can also be fastened to the end of the capacitor 10 away from the conductor support 100 by fastening, screwing or other means.

[0065] In addition, the dimensions of the transition plate 400 can be optimized so that its diameter matches the diameter of the mounting opening 312; at the same time, the length of the housing 310 can be optimized. This allows the cover plate 320 to remain in contact with the transition plate 400 when it covers the mounting opening 312, and allows the transition plate 400 to fit into the mounting opening 312, thus enabling the transition plate 400 to contact both the housing 310 and the cover plate 320 simultaneously.

[0066] Therefore, the end of capacitor 10 furthest from conductor support 100 can be indirectly in contact with both cover plate 320 and housing 310 through transition plate 400. This prevents cover plate 320 from directly contacting capacitor 10 during installation and removal, thus reducing the risk of wear on capacitor 10.

[0067] Furthermore, to improve the ease and stability of capacitor 10 installation, such as... Figure 1 and Figure 2As shown, the housing 310 is provided with a stepped groove 313 at the edge of one end of the mounting port 312, and the transition plate 400 is embedded in the stepped groove 313, and the cover plate 320 abuts against one side of the transition plate 400 away from the housing 310, so that the housing 310 and the cover plate 320 together clamp the transition plate 400.

[0068] It should be noted that the diameter of the transition plate 400 is greater than the diameter of the capacitor 10. The large end of the stepped groove 313 is away from the conductor support 100.

[0069] During installation, the transition plate 400 can be first fastened to the end of the capacitor 10 away from the conductor support 100 by screws, and then the whole is inserted into the mounting cavity 311, so that when the transition plate 400 is embedded in the stepped groove 313, the end of the capacitor 10 towards the conductor support 100 also synchronously contacts the conductor support 100 (at this time, the length of the housing 310 can be adaptively designed to ensure that the capacitor 10 can contact the conductor support 100), realizing electrical connection with the conductor support 100. Finally, the cover plate 320 is installed to clamp the transition plate 400.

[0070] Therefore, the transition plate 400 is clamped by the housing 310 and the cover plate 320 together, thereby realizing positioning and supporting of the capacitor 10, effectively improving the stability of the capacitor 10 installation. Moreover, during the process of inserting the capacitor 10 into the mounting cavity 311, it is not necessary to repeatedly confirm whether it is installed in place, but only needs to embed the transition plate 400 in the stepped groove 313 to indicate that the capacitor 10 has been installed in place, greatly improving the convenience of the capacitor 10 installation process.

[0071] Since the cover plate 320 is detachably connected to the housing 310 by screwing, buckling or other means to cover the mounting port 312, a certain gap is easily generated between the cover plate 320 and the housing 310, causing external moisture or other impurities to easily penetrate into the housing 300 from the gap, and affecting the normal work of the capacitor 10.

[0072] Therefore, in some embodiments, as shown in Figure 1 The mounting structure of the capacitor can further include a sealing ring 500, and at least one sealing ring 500 is used to seal the gap between the housing 310 and the cover plate 320, and at least one sealing ring 500 is used to seal the gap between the housing 310 and the connecting portion 200.

[0073] The sealing ring 500 can be made of elastic sealing material, such as rubber, silicone, foam, etc.

[0074] In this embodiment, two sealing rings 500 may be provided, one of which is clamped between the cover plate 320 and the housing 310, with the mounting opening 312 located inside the sealing ring 500. This allows the sealing ring 500 to effectively seal the gap between the cover plate 320 and the housing 310, reducing the possibility of external moisture or impurities seeping into the interior of the housing 300 through this gap.

[0075] In practice, an annular receiving groove adapted to the sealing ring 500 can be formed on the side of the cover plate 320 facing the housing 310 or on the side of the housing 310 facing the cover plate 320. This allows the sealing ring 500 to be first inserted into the annular receiving groove during installation, followed by tightening the cover plate 320 and housing 310 to clamp the sealing ring 500. This pre-positioning of the sealing ring 500 through the annular receiving groove improves the stability and reliability of the sealing ring 500 during installation.

[0076] Similarly, such as Figure 1 As shown, one of the sealing rings 500 is clamped between the connecting portion 200 and the housing 310, with the mounting cavity 311 located inside the sealing ring 500. This allows the sealing ring 500 to effectively seal the gap between the connecting portion 200 and the housing 310. Similarly, an annular receiving groove adapted to the sealing ring 500 can be formed on the side of the connecting portion 200 facing the housing 310 or on the side of the housing 310 facing the connecting portion 200.

[0077] like Figure 1 and Figure 2 As shown, in some embodiments, an annular flange 314 may be integrally formed, welded, or otherwise provided at the end of the housing 310 facing the cover plate 320. The annular flange 314 can be used to fasten to the cover plate 320 to improve the connection effect between the cover plate 320 and the housing 310. It can be understood that the mounting port 312 and the stepped groove 313 are located on the annular flange 314.

[0078] like Figure 1 As shown, when capacitor 10 is working, its potential decreases from bottom to top, which is equivalent to the potential gradually increasing from the end away from conductor support 100 to the end closer to conductor support 100. Therefore, in some embodiments, the diameter of housing 310 can be gradually increased from the end away from conductor support 100 to the end closer to conductor support 100, so that housing 310 has a conical structure, thereby preventing capacitor 10 from discharging into housing 310.

[0079] like Figure 1 As shown, in some embodiments, the conductor support 100 is provided with an elastic contact 600, which is used to elastically contact the capacitor 10 so that the capacitor 10 is electrically connected to the conductor support 100.

[0080] It should be noted that the elastic contact 600 is made of conductive material, such as copper or other materials.

[0081] In this embodiment, the elastic contact 600 is arranged on the side of the conductor support 100 facing the capacitor 10, so that after the capacitor 10 is inserted into the installation cavity 311, the end of the capacitor 10 facing the conductor support 100 can be in contact with the elastic contact 600.

[0082] Therefore, within the deformation range of the elastic contact 600, elastic contact with the conductor support 100 can be maintained, and good electrical connection between the conductor support 100 and the capacitor 10 can be ensured.

[0083] At the same time, when designing the size of the parts and subsequent installation, only the gap between the conductor support 100 and the capacitor 10 needs to be ensured to be within the maximum length of the elastic contact 600 in the natural state, thereby reducing the influence of size error.

[0084] In this embodiment, as shown in Figure 1 and Figure 3 , the elastic contact 600 is a conductive spring, and the conductive spring is made of copper or other conductive materials. The conductor support 100 is provided with a mounting groove 110, the conductive spring is connected with the conductor support 100, and part of the conductive spring is contained in the mounting groove 110, and the conductive spring is used for elastic abutting to the capacitor 10.

[0085] Specifically, the mounting groove 110 is arranged on the side of the conductor support 100 facing the capacitor 10, and the diameter of the mounting groove 110 is matched with the outer diameter of the conductive spring. One end of the conductive spring in the extension direction can be connected with the bottom of the mounting groove 110 by abutting, screwing, buckling or other ways, and part of the conductive spring facing the conductor support 100 is contained in the mounting groove 110.

[0086] Therefore, when the capacitor 10 is inserted into the installation cavity 311, the end of the capacitor 10 facing the conductor support 100 will be in contact with the conductive spring and compress the conductive spring to deform, thereby ensuring good electrical connection between the capacitor 10 and the conductor support 100 through the conductive spring. Moreover, the mounting groove 110 has a better supporting and guiding effect on the conductive spring, improving the stability of the conductive spring when deforming.

[0087] In other embodiments, the elastic contact 600 can also be an elastic sheet, an elastic strip, etc. made of conductive material.

[0088] As shown in Figure 1As shown, in some embodiments, the capacitor 10 can be selected as a capacitor 10 with the expansion joint 11, and is also a product in the prior art. When the capacitor 10 is in operation, the internal medium (such as oil, film) of the capacitor 10 will expand due to temperature rise and shrink due to temperature drop, at this time, the expansion joint 11 can offset the volume change through its own deformation, avoid the body of the capacitor 10 from bearing pressure, and ensure the safe use of the capacitor 10.

[0089] In implementation, the expansion joint 11 can be located at one end of the capacitor 10 towards the conductor support 100. That is, the capacitor 10 is in contact with the elastic contact piece 600 through the expansion joint 11, so as to realize the electrical connection between the capacitor 10 and the conductor support 100.

[0090] Based on this, as shown, Figure 1 The shielding part 700 can be arranged on the conductor support 100, and the shielding part 700 is used for surrounding the expansion joint 11 in the capacitor 10.

[0091] In this embodiment, the shielding part 700 is an annular boss arranged on the conductor support 100 through integral molding, welding or other ways, the expansion joint 11 is inserted into the inside of the annular boss, and the sizes of the two are matched.

[0092] In this way, the electric field of the metal part in the expansion joint 11 can be improved through the shielding part 700, and the use effect of the capacitor 10 is improved. Moreover, the elastic contact piece 600 can be arranged on the inside of the shielding part 700, so that in the process of inserting and installing the capacitor 10 into the installation cavity 311, one end of the capacitor 10 (that is, the end with the expansion joint 11) can be inserted into the shielding part 700 and then be in contact with the elastic contact piece 600. Therefore, the shielding part 700 also has a better limiting and supporting effect on the whole capacitor 10, and the stability of the installation is improved.

[0093] In other embodiments, the shielding part 700 can also be a slot arranged on the conductor support 100.

[0094] In summary, the mounting structure of the capacitor provided in the embodiments of the present application has the following advantages. The shell 300 not only completes the grounding of the capacitor 10, but also has a better protection effect on the capacitor 10, so as to reduce the possibility of damage of the capacitor 10 in the working process. Moreover, when the capacitor 10 fails, only the shell 300 needs to be removed for maintenance, without the need to remove the circuit breaker, so as not to easily affect the normal use of the circuit breaker. The problem in the related art that when the capacitor 10 is provided with protection, the circuit breaker needs to be removed for maintenance when the capacitor 10 fails, and the normal use of the circuit breaker is easily affected is solved.

[0095] As shown, Figure 4As shown, the switch device provided by the embodiment of the present application comprises: a circuit device 20, a capacitor 10 and the mounting structure of the capacitor in any one of the above embodiments, the circuit device 20 and the capacitor 10 are both electrically connected to the conductor support 100 in the mounting structure of the capacitor, and the capacitor 10 is located outside the circuit device 20.

[0096] In the embodiment, the circuit device 20 is taken as a (tank type) circuit breaker for example, and the structure of the existing product is not limited. The mounting structure of the capacitor is described in detail in the above embodiments, and will not be repeated here.

[0097] Therefore, the capacitor 10 is arranged outside the circuit breaker, and is effectively protected by the shell 300. When the capacitor 10 fails, only the shell 300 needs to be removed for maintenance, without the need to remove the circuit breaker, thereby not easily affecting the normal use of the circuit breaker.

[0098] In addition, in the related art, the capacitor 10 is arranged in the tank body of the circuit breaker, which also easily leads to the overall size of the circuit breaker tank body and GIS being too large, that is, easily increasing the occupied space of the circuit breaker tank body and the overall GIS system, and it is difficult to expand or transform the original size.

[0099] Based on this, in the embodiment, the capacitor 10 can also be installed in the gap (for example, the gap between two adjacent circuit devices 20) on the conductor support 100 except for the circuit breaker, so as not to easily increase the size of the circuit breaker and the occupied space of the overall GIS system, facilitating the expansion or transformation of the original size.

[0100] Finally, it should be noted that: other embodiments of the present application will be easily thought of by those skilled in the art after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any variations, uses or adaptive changes of the present application, which follow the general principles of the present application and include common knowledge or conventional technical means in the art which are not disclosed by the present application, and are not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is only limited by the appended claims.

Claims

1. A capacitor mounting structure, characterized in that, include: A conductor support (100) is used to support a capacitor (10) and is electrically connected to one end of the capacitor (10); The housing (300) is used to cover the capacitor (10) and also to ground the other end of the capacitor (10).

2. The capacitor mounting structure according to claim 1, characterized in that, The housing (300) includes a housing (310) and a cover plate (320). A connecting part (200) is insulatedly connected to the conductor support (100). The housing (310) is detachably connected to the connecting part (200). The housing (310) has a mounting cavity (311) for accommodating the capacitor (10) and a mounting port (312) communicating with the mounting cavity (311). The cover plate (320) is detachably connected to the housing (310), and the cover plate (320) closes the mounting port (312). At least one of the cover plate (320) and the housing (310) is used to contact the capacitor (10) and is grounded.

3. The capacitor mounting structure according to claim 2, characterized in that, It also includes a transition plate (400) for being disposed on the capacitor (10), the transition plate (400) being in contact with both the housing (310) and the cover plate (320).

4. The capacitor mounting structure according to claim 3, characterized in that, The housing (310) has a stepped groove (313) at one end of the mounting port (312). The transition plate (400) is fitted into the stepped groove (313). The cover plate (320) abuts against the side of the transition plate (400) away from the housing (310), so that the housing (310) and the cover plate (320) together clamp the transition plate (400).

5. The capacitor mounting structure according to claim 2, characterized in that, It also includes a sealing ring (500), at least one of the sealing rings (500) for sealing the gap between the housing (310) and the cover plate (320), and at least one of the sealing rings (500) for sealing the gap between the housing (310) and the connecting part (200).

6. The capacitor mounting structure according to claim 2, characterized in that, The diameter of the housing (310) gradually increases from the end away from the conductor support (100) to the end near the conductor support (100), so that the housing (310) has a conical structure.

7. The capacitor mounting structure according to any one of claims 1-6, characterized in that, The conductor support (100) is provided with an elastic contact (600), which is used to elastically contact the capacitor (10) so that the capacitor (10) is electrically connected to the conductor support (100).

8. The capacitor mounting structure according to claim 7, characterized in that, The elastic contact (600) is a conductive spring. The conductor support (100) is provided with a mounting groove (110). The conductive spring is connected to the conductor support (100) and is partially accommodated in the mounting groove (110). The conductive spring is used to elastically abut against the capacitor (10).

9. The capacitor mounting structure according to any one of claims 1-6, characterized in that, The conductor support (100) is provided with a shield (700), which is used to wind the expansion joint (11) in the capacitor (10).

10. A switching device, characterized in that, include: The circuit device (20), the capacitor (10), and the mounting structure of the capacitor according to any one of claims 1-9, wherein the circuit device (20) and the capacitor (10) are electrically connected to the conductor support (100) in the mounting structure of the capacitor, and the capacitor (10) is located outside the circuit device (20).

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