A high-voltage pulse capacitor

Abstract

This utility model discloses a high-voltage pulse capacitor, including a housing, a busbar assembly, and a series branch unit. The housing has a top cover with two lead-out electrodes. Two sets of busbar assemblies are symmetrically installed on the inner wall of the housing. Each busbar assembly includes an insulating strip and a busbar. The insulating strip is fixed to the inner wall of the housing, and its side has a vertically extending guide groove. The busbar is fixed within the guide groove and has multiple spring contacts spaced apart. Each busbar is connected to its corresponding lead-out electrode via a wire. Each end of the series branch unit has a branch electrode, and the lower side of the series branch unit has multiple insulating supports. Multiple series branch units are stacked sequentially from bottom to top within the housing. The branch electrodes at both ends of each series branch unit are fitted into the guide grooves at their corresponding ends and abut against a corresponding spring contact. This utility model reduces assembly difficulty, improves assembly efficiency, and ensures assembly quality.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a high-voltage pulse capacitor. Background Technology

[0002] High-voltage pulse capacitors are special capacitors designed to store and rapidly release high-voltage pulse energy. They are widely used in the field of pulse power technology. Their core characteristics are high voltage resistance, ability to withstand short-term high-current discharge, high energy density, and the need to convert the stored electrical energy into pulse output in a very short time (usually microseconds to milliseconds).

[0003] High-voltage pulse capacitors generally include a housing and a capacitor element housed within the housing. The capacitor element typically comprises multiple parallel series branch units, each of which is formed by multiple capacitor units connected in series. In existing high-voltage pulse capacitor assembly, it is necessary to first stack the series branch units and ensure insulation between each layer of series branch units, then weld busbars to both ends of each series branch unit, and finally encapsulate the assembled capacitor element into the housing. This design results in numerous assembly steps, a complex process, and difficulty in quality control. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a high-voltage pulse capacitor to reduce assembly difficulty, improve assembly efficiency, and ensure assembly quality.

[0005] This utility model provides a high-voltage pulse capacitor, comprising:

[0006] The housing has a top cover on its top, and the top cover has two lead-out electrodes.

[0007] A busbar assembly is provided, with two sets of busbar assemblies symmetrically installed on the inner wall of the housing. The busbar assembly includes an insulating strip and a busbar. The insulating strip is fixed to the inner wall of the housing. The side of the insulating strip is provided with a guide groove extending vertically. The busbar is fixed in the guide groove. Multiple spring pieces are spaced apart on the busbar. Each busbar is connected to the corresponding lead-out electrode through a wire.

[0008] A series branch unit is provided with branch electrodes at both ends. Multiple insulating supports are provided on the lower side of the series branch unit. Multiple series branch units are stacked in sequence from bottom to top in the housing. The insulating supports on the lower side of the bottom series branch unit are supported on the bottom of the housing. The insulating supports on the lower side of the adjacent upper series branch unit are supported on the adjacent lower series branch unit. The branch electrodes at both ends of each series branch unit are respectively adapted to the guide grooves at the corresponding ends and respectively abut against a corresponding spring piece.

[0009] Furthermore, the inner wall of the housing is provided with a locking position corresponding to the installation position of the insulating strip. The locking position includes two L-shaped locking strips arranged opposite each other and extending vertically. The two sides of the insulating strip are respectively locked in the corresponding L-shaped locking strips. The insulating strip is provided with a boss protruding from between the two L-shaped locking strips, and the guide groove is opened on the boss.

[0010] Furthermore, the guide groove has slots on both sides near the bottom of the groove, and the two sides of the busbar are respectively locked in the corresponding slots, with the spring extending into the guide groove.

[0011] Furthermore, the busbar is provided with a relief groove corresponding to the position of each spring piece, the upper end of the spring piece is integrally connected to the upper edge of the relief groove, and the lower part of the spring piece is raised and extends into the guide groove.

[0012] Furthermore, the busbar is made of copper.

[0013] Furthermore, the housing is filled with insulating heat-conducting oil.

[0014] Furthermore, the upper part of the housing is provided with a baffle, and the lower side of the baffle is provided with an insulating support that supports the series branch unit on the top layer. The housing inside the upper part of the baffle is filled with sealant.

[0015] Furthermore, the insulating support is made of ceramic.

[0016] The beneficial effects of this utility model are reflected in:

[0017] During assembly, first align the branch electrodes at both ends of the bottom series branch unit with the guide grooves on both sides, and slide the branch electrodes into the bottom of the housing along the guide grooves. The insulating support on the lower side of the branch electrode supports the bottom of the housing. At this time, the branch electrodes at both ends of the series branch unit abut against the corresponding spring piece, realizing the electrical connection between the two ends of the series branch unit and the busbars on both sides. Then, install the upper series branch units in sequence in the above manner. In this way, it is not necessary to weld the busbars at both ends of each series branch unit before assembly, which helps to reduce the assembly difficulty, improve the assembly efficiency, and ensure the assembly quality. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is an assembly drawing of an embodiment of the present utility model;

[0020] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0021] Figure 3 for Figure 1 A partial exploded view;

[0022] Figure 4 This is a side view of an embodiment of the present utility model;

[0023] Figure 5 for Figure 4 AA sectional view.

[0024] In the attached diagram, 100-housing; 110-top cover; 120-lead electrode; 130-L-shaped retaining strip; 200-bus assembly; 210-insulating strip; 211-guide groove; 212-protrusion; 213-slot; 220-busbar; 221-spring; 222-relief groove; 230-wire; 300-series branch unit; 310-branch electrode; 320-insulating support; 400-baffle; 500-sealant. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0026] like Figures 1-5 As shown, this utility model embodiment provides a high-voltage pulse capacitor, including a housing 100, a busbar assembly 200, and a series branch unit 300.

[0027] The top of the housing 100 is provided with a top cover 110, and two lead-out electrodes 120 are provided on the top cover 110.

[0028] Two sets of busbar assemblies 200 are symmetrically installed on the inner wall of the housing 100. Each busbar assembly 200 includes an insulating strip 210 and a busbar 220. The insulating strip 210 is fixed to the inner wall of the housing 100. The side of the insulating strip 210 is provided with a guide groove 211 extending vertically. The busbar 220 is fixed in the guide groove 211. Multiple spring pieces 221 are spaced apart on the busbar 220. Each busbar 220 is connected to the corresponding lead-out electrode 120 through a wire 230.

[0029] Both ends of the series branch unit 300 are provided with branch electrodes 310. Multiple insulating supports 320 are provided on the lower side of the series branch unit 300. Multiple series branch units 300 are stacked in the housing 100 from bottom to top. The insulating supports 320 on the lower side of the bottom series branch unit 300 are supported on the bottom of the housing 100. The insulating supports 320 on the lower side of the adjacent upper series branch unit 300 are supported on the adjacent lower series branch unit 300. The branch electrodes 310 at both ends of each series branch unit 300 are respectively adapted to the guide grooves 211 at the corresponding ends and respectively abut against the corresponding spring piece 221.

[0030] During assembly, first align the branch electrodes 310 at both ends of the bottom series branch unit 300 with the guide grooves 211 on both sides, and slide the branch electrodes 310 into the bottom of the housing 100 along the guide grooves 211. The insulating support 320 on the lower side of the branch electrode 310 is supported on the bottom of the housing 100. At this time, the branch electrodes 310 at both ends of the series branch unit 300 abut against the corresponding spring piece 221, realizing the electrical connection between the two ends of the series branch unit 300 and the busbars 220 on both sides. Then, install the upper series branch units 300 in sequence in the above manner. In this way, it is not necessary to weld the busbars 220 at both ends of each series branch unit 300 before assembly, which helps to reduce the assembly difficulty, improve the assembly efficiency, and ensure the assembly quality.

[0031] In some embodiments, refer to Figure 3 In order to facilitate fixing the insulating strip 210 to the inner wall of the housing 100, the inner wall of the housing 100 is provided with a locking position corresponding to the installation position of the insulating strip 210. The locking position includes two L-shaped locking strips 130 that are arranged opposite each other and extend vertically. The two sides of the insulating strip 210 are respectively locked in the corresponding L-shaped locking strips 130. The insulating strip 210 is provided with a boss portion 212 protruding from between the two L-shaped locking strips 130, and a guide groove 211 is opened on the boss portion 212.

[0032] In some embodiments, continue to refer to Figure 3 In order to facilitate fixing the busbar 220 in the guide groove 211, the guide groove 211 has slots 213 on both sides near the bottom of the groove. The two sides of the busbar 220 are respectively locked in the corresponding slots 213, and the spring piece 221 extends into the guide groove 211.

[0033] In some embodiments, continue to refer to Figure 3The busbar 220 has a relief groove 222 corresponding to the position of each spring 221. The upper end of the spring 221 is integrally connected to the upper edge of the relief groove 222, and the lower part of the spring 221 is raised and extends into the guide groove 211. The busbar 220 is preferably made of copper. The spring 221 of this structure can be formed by stamping the busbar 220, which is convenient for processing. The spring 221 can be pressed against the branch electrode 310 of the series branch unit 300 by utilizing the elasticity of the material itself.

[0034] In some embodiments, the housing 100 is filled with insulating thermally conductive oil, which can transfer the heat of each series branch unit 300 to the housing 100, thereby improving the heat dissipation effect.

[0035] In some embodiments, refer to Figure 5 The upper part of the housing 100 is provided with a baffle 400, and the lower side of the baffle 400 is provided with an insulating support 320 supporting the series branch unit 300 of the top layer. The housing 100 above the baffle 400 is filled with sealant 500. After the series branch units 300 of each layer are assembled, insulating heat-conducting oil is added into the housing 100. Then, the baffle 400 is installed into the housing 100, and the housing 100 above the baffle 400 is filled with sealant 500. Finally, the two lead electrodes 120 on the top cover 110 are connected to the corresponding busbars 220 through wires 230, and the top cover 110 is closed. This can ensure the sealing of the package and prevent the insulating heat-conducting oil from leaking out.

[0036] In some embodiments, the insulating support 320 is preferably made of ceramic.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A high-voltage pulse capacitor, characterized in that, include: The housing has a top cover on its top, and the top cover has two lead-out electrodes. A busbar assembly is provided, with two sets of busbar assemblies symmetrically installed on the inner wall of the housing. The busbar assembly includes an insulating strip and a busbar. The insulating strip is fixed to the inner wall of the housing. The side of the insulating strip is provided with a guide groove extending vertically. The busbar is fixed in the guide groove. Multiple spring pieces are spaced apart on the busbar. Each busbar is connected to the corresponding lead-out electrode through a wire. A series branch unit is provided with branch electrodes at both ends. Multiple insulating supports are provided on the lower side of the series branch unit. Multiple series branch units are stacked in sequence from bottom to top in the housing. The insulating supports on the lower side of the bottom series branch unit are supported on the bottom of the housing. The insulating supports on the lower side of the adjacent upper series branch unit are supported on the adjacent lower series branch unit. The branch electrodes at both ends of each series branch unit are respectively adapted to the guide grooves at the corresponding ends and respectively abut against a corresponding spring piece.

2. The high-voltage pulse capacitor according to claim 1, characterized in that, The inner wall of the housing is provided with a locking position corresponding to the installation position of the insulating strip. The locking position includes two L-shaped locking strips arranged opposite each other and extending vertically. The two sides of the insulating strip are respectively locked in the corresponding L-shaped locking strips. The insulating strip is provided with a boss protruding from between the two L-shaped locking strips. The guide groove is opened on the boss.

3. The high-voltage pulse capacitor according to claim 1, characterized in that, The guide groove has slots on both sides near the bottom of the groove, and the two sides of the busbar are respectively locked in the corresponding slots. The spring extends into the guide groove.

4. The high-voltage pulse capacitor according to claim 3, characterized in that, The busbar has a relief groove corresponding to the position of each spring piece. The upper end of the spring piece is integrally connected to the upper edge of the relief groove, and the lower part of the spring piece is raised and extends into the guide groove.

5. The high-voltage pulse capacitor according to claim 4, characterized in that, The busbar is made of copper.

6. The high-voltage pulse capacitor according to claim 1, characterized in that, The housing is filled with insulating and heat-conducting oil.

7. The high-voltage pulse capacitor according to claim 6, characterized in that, The upper part of the housing is provided with a baffle, and the lower side of the baffle is provided with an insulating support that supports the series branch unit on the top layer. The housing inside the upper part of the baffle is filled with sealant.

8. The high-voltage pulse capacitor according to claim 1, characterized in that, The insulating support is made of ceramic.

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