Explosion-proof safety cover for large-scale bolt capacitor
By designing a woven mesh outer cover on a large bolt capacitor, combined with thermally conductive silicone and finned heat dissipation, and collecting debris and liquids with a mesh, the safety hazards and heat dissipation problems during an explosion are solved, achieving a safe and efficient protective effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUZHOU XINJIANGHAO ELECTRONICS CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
When large bolted capacitors explode, solid debris can easily fly out and injure operators or cause fires. At the same time, the high-temperature liquid electrolyte that has not been vaporized can easily splash and cause burns, and the explosion-proof safety cover is not easy to provide auxiliary heat dissipation.
An explosion-proof safety cover with a woven mesh outer cover was designed, with a built-in bolt capacitor body, a heat dissipation mechanism and a collection mechanism. It uses thermally conductive silicone, thermally conductive fins and a collection net for heat dissipation and collection of debris and liquid to prevent splashing.
It effectively prevents solid debris and high-temperature liquids from flying out, avoiding personal injury and fire, while improving heat dissipation efficiency and ensuring operational safety.
Smart Images
Figure CN224203966U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt capacitor technology, specifically to a large bolt capacitor explosion-proof safety cover. Background Technology
[0002] Bolted capacitors are capacitors connected by bolted terminals. They are widely used in frequency converters, UPS power supplies, inverters, photovoltaics, military industries and other fields. They mainly function as filters, energy converters and power transmitters. They are one of the key components. In order to reduce the damage to surrounding components when bolted capacitors fail, explosion-proof safety covers are usually installed on the capacitor casing.
[0003] If a large bolted capacitor explodes, solid debris (electrolytic paper, aluminum shell, cover plate, etc.) can easily fly out, injuring operators or causing further fires. At the same time, the unvaporized high-temperature (>100℃) liquid electrolyte can easily splash and burn operators. Large bolted capacitors generate heat during use, and explosion-proof safety covers generally only protect them and do not provide auxiliary heat dissipation. Utility Model Content
[0004] The purpose of this utility model is to provide an explosion-proof safety cover for large bolted capacitors, in order to solve the problems mentioned in the background art, such as the easy occurrence of solid debris (electrolytic paper, aluminum shell, cover plate, etc.) flying out when a large bolted capacitor explodes, injuring operators or causing further fires, the easy splashing of unvaporized high-temperature (>100℃) liquid electrolyte causing burns to operators, and the difficulty in providing auxiliary heat dissipation for large bolted capacitors.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a large bolt capacitor explosion-proof safety cover, comprising a safety cover, the safety cover being a woven mesh outer cover, a bolt capacitor body placed inside the safety cover, bolt terminals installed on both sides of the top position of the bolt capacitor body, one end of each bolt terminal penetrating the safety cover and extending to the top of the safety cover, a heat dissipation mechanism provided on the surface of the safety cover, the heat dissipation mechanism including thermally conductive silicone, a through-hole, thermally conductive fins, and mounting feet, and a collection mechanism provided on the surface of the safety cover, the collection mechanism consisting of a liquid collection component and a collection net.
[0006] Preferably, the inner wall at the top of the safety shield is adhered with thermally conductive silicone, and the surface of the thermally conductive silicone is in close contact with the surface of the bolt capacitor body.
[0007] Preferably, the thermally conductive silicone surface has openings on both sides, the openings are located outside the bolt terminal, and the bottom of the safety cover is fixed with mounting feet along the circumferential direction.
[0008] Preferably, the inner wall of the safety shield is fixed with heat-conducting fins along the circumferential direction. The heat-conducting fins have a corrugated structure, and one end of the heat-conducting fins is tightly attached to the surface of the bolt capacitor body.
[0009] Preferably, a storage net is fixed at the bottom of the safety cover, the surface of the storage net is in close contact with the surface of the heat-conducting fins, and the storage net is located below the bolt capacitor body.
[0010] Preferably, the storage net is provided with a liquid collection component inside, which is located at the bottom of the bolt capacitor body. The liquid collection component includes a leakage hole, a liquid collection hopper, and a liquid collection box inside.
[0011] Preferably, a liquid collection component is fixed to the surface of the collection net, and the top of the liquid collection component has equally spaced leakage holes.
[0012] Preferably, a liquid collecting hopper is fixed to the bottom of the bolt capacitor body, one end of the liquid collecting hopper is fixedly connected to the surface of the liquid collection box, and the liquid collecting hopper is connected to the leakage hole.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the explosion-proof safety cover for the large bolt capacitor not only avoids the phenomenon that solid fragments fly out and injure operators or cause further fire when the bolt capacitor body explodes, and avoids the splashing of unvaporized high-temperature liquid electrolyte that could burn operators, but also improves the heat dissipation effect of the bolt capacitor body when the explosion-proof safety cover is in use.
[0014] 1. By incorporating a collection mechanism, if the bolt capacitor body explodes, the safety shield can prevent solid debris from flying out and injuring operators or causing further fire. In this case, the solid debris is intercepted and collected inside the collection net. At the same time, the unvaporized high-temperature liquid electrolyte will fall into the liquid collection box through the liquid collection hopper and the leakage hole, preventing it from splashing and scalding operators. This achieves the explosion protection function of the explosion-proof safety shield, thereby preventing solid debris from flying out and injuring operators or causing further fire when the bolt capacitor body explodes, and preventing the unvaporized high-temperature liquid electrolyte from splashing and scalding operators.
[0015] 2. By incorporating a heat dissipation mechanism, the safety cover is fitted onto the surface of the bolt capacitor body, and the safety cover is fixed to the storage net. The mounting feet are then fixed to the bottom of the safety cover and the storage net, ensuring that the surfaces of the thermally conductive silicone and thermally conductive fins are in close contact with the surface of the bolt capacitor body. This facilitates heat conduction to the bolt capacitor body. The corrugated structure of the thermally conductive fins increases their heat conduction area and accelerates the heat transfer process. The woven mesh outer cover of the safety cover facilitates airflow within the cover. Simultaneously, the openings allow the bolt terminals to pass through the outside of the safety cover, and the mounting feet facilitate airflow at the bottom of the storage net, accelerating ventilation and cooling of the bolt capacitor body. This provides auxiliary heat dissipation for the explosion-proof safety cover, thereby improving the heat dissipation effect of the bolt capacitor body during use. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0018] Figure 3 This is a top view cross-sectional structural diagram of the present invention;
[0019] Figure 4 This is a schematic diagram of the storage mechanism structure of this utility model.
[0020] In the diagram: 1. Safety guard; 11. Bolt terminal; 12. Bolt capacitor body; 2. Heat dissipation mechanism; 21. Thermal conductive silicone; 22. Through port; 23. Thermal conductive fins; 24. Mounting feet; 3. Collection mechanism; 31. Liquid collection assembly; 311. Leakage hole; 312. Liquid collection hopper; 313. Liquid collection box; 32. Collection net. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0022] The structure of a large bolt capacitor explosion-proof safety cover provided by this utility model is as follows: Figure 1 and Figure 2 As shown, further, as Figure 2 and Figure 4 As shown, it includes a safety cover 1, which is a woven mesh cover. Inside the safety cover 1, a bolt capacitor body 12 is placed. Bolt terminals 11 are installed on both sides of the top position of the bolt capacitor body 12. One end of the bolt terminal 11 passes through the safety cover 1 and extends to the top of the safety cover 1.
[0023] The surface of the safety cover 1 is provided with a heat dissipation mechanism 2. The interior of the heat dissipation mechanism 2 includes thermally conductive silicone 21, a through-hole 22, thermally conductive fins 23, and mounting feet 24. Thermally conductive silicone 21 is adhered to the inner wall at the top of the safety cover 1. The surface of the thermally conductive silicone 21 is tightly attached to the surface of the bolt capacitor body 12. Through-holes 22 are provided on both sides of the surface of the thermally conductive silicone 21. The through-holes 22 are located on the outside of the bolt terminal 11. Mounting feet 24 are fixed circumferentially at the bottom of the safety cover 1. Thermally conductive fins 23 are fixed circumferentially on the inner wall of the safety cover 1. The thermally conductive fins 23 have a wavy structure. One end of the thermally conductive fins 23 is tightly attached to the surface of the bolt capacitor body 12.
[0024] In use, the safety cover 1 is fitted onto the surface of the bolt capacitor body 12, and the safety cover 1 is fixed to the storage net 32. Then, the mounting feet 24 are fixed to the bottom of the safety cover 1 and the storage net 32, so that the surfaces of the thermally conductive silicone 21 and the thermally conductive fins 23 are in close contact with the surface of the bolt capacitor body 12, thus conducting heat to the bolt capacitor body 12. Since the thermally conductive fins 23 have a wavy structure, the thermally conductive area of the thermally conductive fins 23 can be increased, and the heat conduction speed can be accelerated. Since the safety cover 1 is a woven mesh cover, it is convenient for air to circulate inside the safety cover 1. At the same time, the opening 22 facilitates the passage of the bolt terminal 11 through the outside of the safety cover 1, and the mounting feet 24 facilitate air circulation at the bottom of the storage net 32, accelerating the ventilation and cooling of the bolt capacitor body 12, so as to realize the auxiliary heat dissipation function of the explosion-proof safety cover.
[0025] The surface of the safety cover 1 is provided with a collection mechanism 3, which consists of a liquid collection component 31 and a collection net 32. The collection net 32 is fixed at the bottom of the safety cover 1. The surface of the collection net 32 is in close contact with the surface of the heat-conducting fins 23. The collection net 32 is located below the bolt capacitor body 12. The liquid collection component 31 is provided inside the collection net 32. The liquid collection component 31 is located at the bottom of the bolt capacitor body 12. The liquid collection component 31 includes a leakage hole 311, a liquid collection hopper 312 and a liquid collection box 313. The surface of the collection net 32 is fixed with the liquid collection component 31. The top of the liquid collection component 31 has equally spaced leakage holes 311. The bottom of the bolt capacitor body 12 is fixed with the liquid collection hopper 312. One end of the liquid collection hopper 312 is fixedly connected to the surface of the liquid collection box 313. The liquid collection hopper 312 is connected to the leakage hole 311.
[0026] In use, if the bolt capacitor body 12 explodes, the safety shield 1 can prevent solid debris (electrolytic paper, aluminum shell, cover plate, etc.) from flying out, injuring operators, or causing further fire. At this time, the solid debris is intercepted and collected inside the collection net 32. Meanwhile, the unvaporized high-temperature (>100℃) liquid electrolyte will fall into the liquid collection box 313 through the liquid collection hopper 312 and the leakage hole 311, preventing it from splashing and scalding operators, thus realizing the explosion protection function of the explosion-proof safety shield.
[0027] Working principle: In use, first, the safety cover 1 is placed on the surface of the bolt capacitor body 12, and the safety cover 1 is fixed to the storage net 32. Then, the mounting feet 24 are fixed to the bottom of the safety cover 1 and the storage net 32, so that the surfaces of the thermally conductive silicone 21 and the thermally conductive fins 23 are in close contact with the surface of the bolt capacitor body 12, thus conducting heat to the bolt capacitor body 12. Since the thermally conductive fins 23 have a wavy structure, the thermally conductive area of the thermally conductive fins 23 can be increased, and the heat conduction speed can be accelerated. Since the safety cover 1 is a woven mesh cover, it is convenient for air to circulate inside the safety cover 1. At the same time, the opening 22 facilitates the passage of the bolt terminal 11 through the outside of the safety cover 1. The mounting feet 24 facilitate air circulation at the bottom of the storage net 32, accelerating the ventilation and cooling of the bolt capacitor body 12, so as to realize the auxiliary heat dissipation function of the explosion-proof safety cover, thereby improving the heat dissipation effect of the bolt capacitor body 12 when the explosion-proof safety cover is used.
[0028] If the bolt capacitor body 12 explodes, the safety shield 1 can prevent solid debris (electrolytic paper, aluminum shell, cover plate, etc.) from flying out, injuring operators, or causing further fire. At this time, the solid debris is intercepted and collected inside the collection net 32. Meanwhile, the unvaporized high-temperature (>100℃) liquid electrolyte will fall into the liquid collection box 313 through the liquid collection hopper 312 and the leakage hole 311, preventing it from splashing and scalding operators. This achieves the explosion protection function of the explosion-proof safety shield, thereby preventing solid debris from flying out and injuring operators or causing further fire when the bolt capacitor body 12 explodes, and preventing the unvaporized high-temperature liquid electrolyte from splashing and scalding operators. Finally, the use of the explosion-proof safety shield is completed.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A large bolt capacitor explosion-proof safety cover, comprising a safety protective cover (1), characterized in that: The safety shield (1) is a woven mesh cover. A bolt capacitor body (12) is placed inside the safety shield (1). Bolt terminals (11) are installed on both sides of the top position of the bolt capacitor body (12). One end of the bolt terminal (11) passes through the safety shield (1) and extends to the top of the safety shield (1). A heat dissipation mechanism (2) is provided on the surface of the safety shield (1). The heat dissipation mechanism (2) includes thermally conductive silicone (21), a through-hole (22), thermally conductive fins (23), and mounting feet (24). A collection mechanism (3) is provided on the surface of the safety shield (1). The collection mechanism (3) consists of a liquid collection component (31) and a collection net (32).
2. The explosion-proof safety cover for a large bolt capacitor according to claim 1, characterized in that: The inner wall of the top position of the safety shield (1) is adhered with thermally conductive silicone (21), and the surface of the thermally conductive silicone (21) is closely attached to the surface of the bolt capacitor body (12).
3. The explosion-proof safety cover for a large bolt capacitor according to claim 2, characterized in that: Both sides of the surface of the thermally conductive silicone (21) are provided with openings (22), the openings (22) are located outside the bolt terminal (11), and the bottom of the safety cover (1) is fixed with mounting feet (24) along the circumferential direction.
4. The explosion-proof safety cover for a large bolt capacitor according to claim 3, characterized in that: The inner wall of the safety shield (1) is fixed with heat-conducting fins (23) along the circumference. The structure of the heat-conducting fins (23) is a wave-shaped structure. One end of the heat-conducting fins (23) is tightly attached to the surface of the bolt capacitor body (12).
5. The explosion-proof safety cover for a large bolt capacitor according to claim 1, characterized in that: A storage net (32) is fixed at the bottom of the safety cover (1). The surface of the storage net (32) is closely attached to the surface of the heat-conducting fins (23). The storage net (32) is located below the bolt capacitor body (12).
6. The explosion-proof safety cover for a large bolt capacitor according to claim 5, characterized in that: The storage net (32) is provided with a liquid collection component (31) inside. The liquid collection component (31) is located at the bottom of the bolt capacitor body (12). The liquid collection component (31) includes a leakage hole (311), a liquid collection hopper (312), and a liquid collection box (313).
7. The explosion-proof safety cover for a large bolt capacitor according to claim 6, characterized in that: The surface of the storage net (32) is fixed with a liquid collection component (31), and the top of the liquid collection component (31) is provided with equally spaced leakage holes (311).
8. The explosion-proof safety cover for a large bolt capacitor according to claim 7, characterized in that: The bottom of the bolt capacitor body (12) is fixed with a liquid collecting hopper (312), one end of which is fixedly connected to the surface of the liquid collection box (313), and the liquid collecting hopper (312) is connected to the leakage hole (311).