High-voltage box with high anti-seismic performance

Abstract

The application discloses a high-voltage box with high anti-vibration performance, and relates to the technical field of energy storage systems; and specifically comprises a high-voltage box body internally provided with a fuse, a relay and a main control module, and a connecting socket fixedly installed on the outer wall of the high-voltage box body. The intermediate flexible part of the soft copper bar can effectively buffer and absorb vibration energy, prevents vibration from being transmitted from the connecting socket to key elements such as the fuse and the relay, and solves the problem that the bolts of a traditional hard copper bar are prone to loosening in a multiple-vibration environment. Various special-shaped terminals are automatically positioned and prevented from deviating during connection through geometric shape design, thereby improving assembly efficiency and consistency. Heat-absorbing fins are provided with vertical guide grooves one on both sides, a bottom part is provided with a guide groove two parallel to the bottom end of the fin, and a connecting block is provided with a guide groove four on the bottom part, so that the three form a continuous condensate water flow guide network, condensate water on the surface of the fin is actively guided to the gathering connecting box, and the influence of the condensate water is avoided.

Description

Technical Field

[0001] This invention relates to the field of energy storage system technology, and in particular to a high-voltage box with high seismic resistance. Background Technology

[0002] The high-voltage box of a containerized energy storage system is usually located in the electrical control area of ​​the container, connecting the energy storage battery compartment with the external circuit. It is an integrated device that integrates high-voltage DC relays, monitoring and control modules, and safety protection components, and is responsible for the scheduling, on / off control and safety protection of high-voltage DC power in the containerized energy storage system.

[0003] According to the search, Chinese patent application number 202422698220.8 discloses an energy storage high-voltage box and an energy storage system. By placing the heat absorption part inside the installation cavity and the heat dissipation part outside the installation cavity, the heat inside the installation cavity can be transferred to the heat dissipation part through the heat absorption part and then directly dissipated to the external environment, thereby accelerating the heat dissipation speed inside the installation cavity.

[0004] In actual use, the components inside the high-voltage box, such as fuses, relays, main control modules, and wire connection sockets, are mainly connected via rigid copper busbars. The operating environment of containerized energy storage systems is prone to vibration, and rigid copper busbars, especially the irregularly shaped ones used to connect wire connection sockets and other components, transmit vibrations that significantly impact other components. This is detrimental to the long-term use of the high-voltage box in vibrating environments. Rigid copper busbars also generate a large amount of heat during use. Typical high-voltage boxes are equipped with vent valves to maintain stable internal pressure. In some high-voltage boxes located in high-humidity environments, the entry of humid air into the box may cause condensation under the cooling structure, affecting the performance of the copper busbars. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a high-pressure box with high seismic resistance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-voltage box with high seismic resistance includes a main body containing a fuse, a relay, and a main control module. A connection socket is fixedly installed on the outer wall of the main body. Copper busbars are installed between the connection socket and the fuse, and between the connection socket and the relay. A cooler is fixedly installed at the top of the inner cavity of the main body. The copper busbars are flexible copper busbars, and the main body of the flexible copper busbars is a laminated copper busbar body. Both ends of the laminated copper busbar body are provided with irregularly shaped terminals to increase connection stability. The cooler body is a cooling box body. A liquid cooling circulation pipe is installed inside the cooling box body, and heat-absorbing fins for guiding condensate are installed at the bottom of the cooling box body. A collection connection box is installed at the bottom of one end of the heat-absorbing fins, and a high-temperature resistant absorbent sponge for absorbing water is installed inside the collection connection box.

[0007] As a preferred embodiment of the present invention: an installation connecting frame is fixedly sleeved on the bottom of the cooling box body, a connecting protective plate is fixedly installed at the bottom of the inner cavity of the installation connecting frame, and an absorbent sponge pad is provided on the upper surface of the connecting protective plate.

[0008] As a preferred embodiment of the present invention: the bottom wall thickness of the cooling box body is one-third to one-half of the side wall thickness, and the bottom of the cooling box body is provided with an installation connection groove. A heat-conducting connection piece is fixedly installed on the top wall of the installation connection groove. Multiple heat-absorbing fins are equidistantly arranged and fixedly connected to the lower surface of the heat-conducting connection piece, and pass through and connect the protective plate and the water-absorbing sponge pad.

[0009] Based on the aforementioned scheme: the bottom surface of the heat-absorbing fin is set as an inclined surface, the acute angle between the inclined surface and the lower surface of the heat-conducting connecting piece is set to 20° to 40°, and the bottom of the tail end of the heat-absorbing fin is fixedly connected to an installation connecting block, the top of the gathering connecting box is fixedly connected to a connecting frame plate, and the connecting frame plate is fixedly installed on the installation connecting block.

[0010] Based on the aforementioned scheme: guide grooves are provided at the lower part of both sides of the heat-absorbing fins. The axis of the guide grooves is parallel to the bottom end of the heat-absorbing fins, and the end of the guide grooves near the gathering connection box is bent and passes through the mounting connection block.

[0011] The heat-absorbing fins are provided with multiple guide grooves 1, whose axes are perpendicular to the lower surface of the heat-conducting connecting piece, at equal intervals on both sides. The bottom end of the guide groove 1 is connected to the guide groove 2. The bottom inner wall of the guide groove 2 is provided with a guide groove 3. The bottom of both sides of the mounting connecting block is provided with multiple guide grooves 4, at equal intervals on the bottom. The guide grooves 4 are connected to the guide groove 2.

[0012] As a preferred embodiment of the present invention: a connecting plate is movably installed on the front of the cooling box body, and two circulation pipe connecting heads that penetrate the connecting plate are fixedly connected to the back of the connecting plate. One end of the circulation pipe connecting head is connected to a liquid cooling connector, and a liquid cooling plug is fixedly connected to the liquid cooling connector. The liquid cooling plug is fixedly installed on the upper part of the high-pressure box body.

[0013] As a preferred embodiment of the present invention: a sealing cover is fixedly installed on the top of the cooling box body, and an inert gas control valve is fixedly installed on one end of the top of the sealing cover. Inert gas for heat exchange is injected into the interior of the cooling box body through the inert gas control valve, and the inert gas control valve is configured as a solenoid valve.

[0014] As a preferred embodiment of the present invention: the irregular terminal includes an irregular terminal two, one end of the upper surface of the irregular terminal two is provided with a groove for engaging and snapping, the depth of the groove one is half the thickness of the irregular terminal two; the irregular terminal also includes an irregular terminal three, the main body of the irregular terminal three is a long strip plate, and the side away from the main body of the stacked copper busbar has an integrally formed insert plate with a vertical surface dimension reduced proportionally.

[0015] As a preferred embodiment of the present invention: the irregular terminal includes an irregular terminal five, the main body of which is a flat plate, and the upper surface of the flat plate is integrally formed with a multi-faceted insert post; the irregular terminal also includes an irregular terminal seven, the main body of which is a U-shaped card holder, and both ends of the bottom inner wall of the card holder are fixedly installed with Ω-shaped elastic bracket plates.

[0016] The beneficial effects of this invention are as follows: 1. This high-voltage box with high seismic resistance effectively buffers and absorbs vibration energy through the flexible middle part of the soft copper busbar, preventing vibration from being transmitted from the connection socket to key components such as fuses and relays. This solves the fundamental problem of bolts easily loosening in traditional hard copper busbars under high vibration environments. Various irregularly shaped terminals achieve automatic positioning and anti-offset during connection through geometric design, improving assembly efficiency and consistency. Vertical guide grooves are opened on both sides of the heat-absorbing fins, and guide grooves parallel to the bottom of the fins are opened at the bottom. Guide grooves are opened at the bottom of the mounting connection block. The three form a continuous condensate drainage network, actively guiding the condensate on the fin surface to the collection connection box, avoiding the influence of condensate.

[0017] 2. This high-pressure box with high seismic resistance features a soft copper busbar laminated structure with a larger specific surface area, resulting in superior heat dissipation performance compared to solid hard copper busbars, which helps reduce the temperature rise of the copper busbars themselves. The refrigerant flows only within the liquid cooling circulation pipes and does not directly contact the internal components of the high-pressure box. Inert gas is used as an intermediate heat transfer medium, so even if the liquid cooling pipes are damaged, liquid will not seep into the high-pressure box, fundamentally eliminating the risk of short circuits caused by coolant leakage.

[0018] 3. This high-pressure box with high seismic resistance has a bottom wall thickness that is only 1 / 3 to 1 / 2 of that on the sides, concentrating the main direction of heat conduction at the bottom. Combined with heat-conducting connecting plates and heat-absorbing fins, it forms a highly efficient triple heat exchange link of "heat-absorbing fins, inert gas, and liquid cooling pipes". The bottom of the fins is inclined at a 20° to 40° angle, the high end is close to the soft copper busbar between the connection socket and the fuse, and the tail end extends to the top of the main control module and other components, realizing precise zoning of heat absorption.

[0019] 4. This high-voltage box with high seismic resistance features soft copper busbars that have a certain degree of deformation adaptability, significantly reducing the dimensional accuracy requirements compared to irregularly shaped hard copper busbars, thus simplifying the processing technology and assembly process.

[0020] 5. This high-voltage box with high seismic resistance uses an inert gas control valve to maintain an inert gas pressure of 3 to 5 times the standard atmosphere in the cooling box for heat transfer under non-emergency conditions; when an electric arc or abnormal high temperature occurs inside the high-voltage box, the main control module controls the inert gas control valve to open, releasing the high-pressure inert gas in the cooling box into the main body of the high-voltage box, quickly extinguishing the electric arc and improving the internal insulation performance, thus playing a passive safety protection role. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the overall assembly of the high-voltage box of the present invention. Figure 1 ; Figure 2 This is a three-dimensional structural diagram of the overall assembly of the high-voltage box of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the high-voltage box of the present invention; Figure 4 This is a schematic diagram of the internal components of the high-voltage box of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the internal components of the high-voltage box of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the front planar structure of the high-voltage box of the present invention; Figure 7 This is a schematic diagram of the left side of the high-voltage box of the present invention; Figure 8 This is a schematic diagram of the structure of various terminal shapes of the flexible copper busbar of the present invention; Figure 9 This is a three-dimensional structural diagram of the cooling device of the present invention; Figure 10 This is a partial cross-sectional view of the cooling device of the present invention; Figure 11 For the present invention Figure 10A magnified schematic diagram of the partial structure at point A in the middle; Figure 12 For the present invention Figure 10 A magnified schematic diagram of the local structure at point B; Figure 13 For the present invention Figure 10 A magnified schematic diagram of the structure at point C in the middle; Figure 14 This is a schematic diagram of the planar structure of the side of the cooler of the present invention.

[0022] In the diagram: 1. High-pressure box body; 2. Soft copper busbar; 3. Cooler; 201. Laminated copper busbar body; 202. Conventional plate terminal; 203. Irregular terminal one; 204. Irregular terminal two; 205. Irregular terminal three; 206. Irregular terminal four; 207. Irregular terminal five; 208. Irregular terminal six; 209. Irregular terminal seven; 210. Irregular terminal eight; 211. Irregular terminal nine; 212. Irregular terminal ten; 301. Cooling box body; 302. Sealed box cover; 303. Fixed connecting frame; 304. Inert gas control valve; 305. Connecting plate; 30 6. Connecting hose; 307. Liquid cooling connector; 308. Mounting connection frame; 309. Stabilizing connection piece one; 310. Liquid cooling circulation pipe; 311. Stabilizing connection piece two; 312. Circulation pipe connecting pipe head; 313. Heat-conducting connection piece; 314. Heat-absorbing fins; 315. Guide groove one; 316. Guide groove two; 317. Guide groove three; 318. Connecting protective plate; 319. Water-absorbing sponge pad; 320. Mounting connection block; 321. Guide groove four; 322. Gathering connection box; 323. High-temperature resistant water-absorbing sponge; 324. Connecting frame plate; a. Fin bottom inclination angle. Detailed Implementation

[0023] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0024] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] Example 1: A high-voltage box with high seismic resistance, such as Figures 1 to 8 As shown, the high-voltage box body 1 includes a built-in fuse, relay, and main control module. A connection socket is fixedly installed on the outer wall of the high-voltage box body 1. Copper busbars are installed between the connection socket and the fuse, and between the connection socket and the relay. A cooler 3 is fixedly installed on the top of the inner cavity of the high-voltage box body 1.

[0026] The high-voltage box body 1 includes a mounting box and a top cover. The cooler 3 is fixedly installed on the top cover and controlled by the main control module. The layout and location of the fuses, relays, main control module, and connection sockets can be found in [reference needed]. Figures 1 to 7 Those skilled in the art can fully understand the structure of the high-voltage box body 1 and the connection method between the components based on the above-described drawings, and this application will not elaborate further.

[0027] The copper busbars between the connector and the fuse, and between the connector and the relay, are designed as flexible copper busbars 2. In the past, the copper busbars in these two positions were rigid copper busbars, and irregularly shaped ones at that. During assembly, the dimensional accuracy requirements of the rigid copper busbars were high, which caused some inconvenience to the processing of the copper busbars. The connector usually has connecting terminals (usually made of copper) installed on the connector, and the connecting terminals are connected to the rigid copper busbars by bolts. The connection between the rigid copper busbars and the fuses and relays is also made of bolts. When the high-voltage box is in a high-vibration working environment for a long time, the vibration transmitted by the rigid copper busbars themselves will cause the bolts to loosen, which is not conducive to the use of the high-voltage box. This application replaces the rigid copper busbars in these two positions with flexible copper busbars 2, which can effectively reduce the impact of vibration on the copper busbars and the connection between the copper busbars and the connecting terminals, ensuring the reliability of the overall device. At the same time, the flexible copper busbars 2 have better heat dissipation.

[0028] The main body of the soft copper busbar 2 is a laminated copper busbar body 201. The connection areas (i.e., the ends) at both ends of the laminated copper busbar body 201 are pressure welded using a polymer diffusion welding machine, so that the copper foil and the ends form a strong rigid connection, while the middle part retains its flexible and bendable characteristics; for example Figure 8 As shown, the conventional rigid connection part is set as a conventional plate-shaped terminal 202, which has the same control, directly fits with the connection terminal, and is then fixed by bolts.

[0029] Based on the conventional plate terminal 202, this application processes its shape to form an irregular terminal that increases connection stability. The irregular terminal and the connecting terminal are still fixed to the base by bolts, but the connection stability and positioning convenience of the two can be further improved, so that the two will not be displaced relative to each other during the connection process.

[0030] The irregular terminal includes irregular terminal 203. The vertical ladder of irregular terminal 203 is set as a rigid connecting plate. A connecting plate is integrally formed in the middle of the side of the rigid connecting plate away from the main body 201 of the laminated copper busbar. The thickness of the connecting plate is set to half the thickness of the rigid connecting plate. One of the two internal corners of the connecting plate and the rigid connecting plate is chamfered to ensure the strength of irregular terminal 203 itself. The other internal corner is stuck on the edge of the connecting terminal.

[0031] The irregular terminal 203 can be replaced by the irregular terminal 204. A groove 1 for engaging is provided at one end of the upper surface of the conventional plate terminal 202. The depth of the groove 1 is half the thickness of the irregular terminal 204, which is the irregular terminal 204. The connecting terminal is directly snapped into the groove 1. The irregular terminal 203 can be replaced by the irregular terminal 205. The main body of the irregular terminal 205 is a long strip plate, which is directly connected to the main body 201 of the laminated copper busbar. The side of the long strip plate away from the main body 201 of the laminated copper busbar has an integrally formed insert plate with a vertical surface size that is proportionally reduced.

[0032] The irregular terminal 203 can be replaced by the irregular terminal 206, with an installation slot provided at the end of the conventional plate terminal 202 away from the laminated copper busbar body 201.

[0033] The irregular terminal 3 205 and irregular terminal 4 206 are in combination. When the terminal of the soft copper busbar 2 is set as irregular terminal 3 205, the shape of the connecting terminal should be set as irregular terminal 4 206. The dimensions of the two are compatible with each other to ensure the convenience and stability of the connection; and vice versa.

[0034] The irregular terminal 4 206 can also be replaced by the irregular terminal 7 209. Its main body is set as a U-shaped card holder. Both ends of the bottom inner wall of the card holder are fixedly installed with Ω-shaped elastic bracket plates. The insertion plate of the irregular terminal 3 205 is inserted into the irregular terminal 7 209. The elastic bracket plate uses its own deformation to generate elastic force to resist the insertion plate of the irregular terminal 3 205, so that the two conductive surfaces are fully in contact.

[0035] The irregular terminal 7 209 can also be replaced by the irregular terminal 8 210, which has a through slot on the side of the conventional plate terminal 202, and two elastic brackets are also installed on the bottom wall of the slot; the insert plate of the irregular terminal 3 205 can be directly inserted into the through slot.

[0036] The aforementioned conductive surfaces are the conductive contact surfaces of the rigid connection parts and connecting terminals. The other surfaces of the rigid connection parts and connecting terminals, except for the conductive surfaces, need to be treated with tin plating, etc. The axis of the flexible frame plate is perpendicular to the straight line of the insertion direction of the insert plate, which can not only prevent the flexible frame plate from scratching the plating layer, but also make the flexible frame plate deform more gently.

[0037] The irregular terminal 203 can be replaced by the irregular terminal 207. Its main body is set as a flat plate of the conventional plate terminal 202. The upper surface of the flat plate is integrally formed with a multi-faceted post, and the through hole for mounting bolts on the flat plate passes through the multi-faceted post. The multi-faceted post is preferably a regular hexagonal prism. When the irregular terminal 207 is matched with the connecting terminal, the connecting terminal is provided with a multi-faceted through groove that matches the multi-faceted post. The height of the multi-faceted post is the same as the thickness of the connecting terminal.

[0038] The irregular terminal 5 207 can also be replaced by the irregular terminal 6 208. The two have the same structure, the difference being the height of the multi-faceted insert. The height of the multi-faceted insert of the irregular terminal 6 208 is set to half the thickness of the connecting terminal. At the same time, the depth of the multi-faceted through groove on the connecting terminal is reduced accordingly, and can be the same as the height of the multi-faceted insert. This method can reduce the processing difficulty of irregular terminals and connecting terminals.

[0039] The irregular terminal 203 can be replaced by the irregular terminal 211. A groove 2 is formed on the upper surface of the conventional plate terminal 202. The groove 2 has two sidewalls, one of which is close to the laminated copper busbar body 201, and the other sidewall is adjacent to the sidewall. The connecting terminal is stuck inside the groove 2.

[0040] The irregular terminal 9 211 can be replaced by the irregular terminal 10 212. A 90-degree bent corner plate is welded on the basis of the conventional plate terminal 202. The corner plate is welded on a corner of the conventional plate terminal 202 away from the stacked copper busbar body 201. Its upper part protrudes from the upper surface of the conventional plate terminal 202. The connecting terminal is directly clipped into the corner plate and is in contact with the power-conducting surface of the conventional plate terminal 202.

[0041] In this embodiment, during use, various components in the high-voltage box body 1, such as fuses, relays, main control modules, connection sockets, and coolers 3, are arranged according to... Figures 1 to 7 Assemble as shown; when assembling the soft copper busbar 2, first select a suitable irregular terminal structure as needed, connect one terminal of the soft copper busbar 2 to a fuse or relay, and connect the other terminal to the connection terminal of the connection socket; the above-mentioned various irregular terminals and conventional plate terminals 202 can be selected as needed, and the terminal structures at both ends of the same soft copper busbar 2 can be irregular.

[0042] Example 2: A high-voltage box with high seismic resistance, such as Figure 6 , Figure 7 , Figures 9 to 11 As shown, in order to solve the problem that the high heat generated by components such as the copper busbar inside the high-pressure box during operation affects the operation of the overall structure, this embodiment improves the cooler 3 based on the first embodiment.

[0043] The main body of the cooler 3 is a cooling box body 301. The top of the cooling box body 301 has an opening, and a sealing box cover 302 is fixedly installed on its upper part. A sealing rubber gasket resistant to low temperature embrittlement is provided between the two. Multiple fixed connecting brackets 303 are fixedly installed on the top of the sealing box cover 302. The fixed connecting brackets 303 are fixedly installed at the bottom of the top box cover.

[0044] The front of the cooling box body 301 has an installation slot, and a connecting plate 305 is inserted into the inside of the installation slot. The four side walls (top, bottom, left, and right sides) of the connecting plate 305 have square slots. The corresponding parts of the cooling box body 301 and the sealing box cover 302 are inserted into the square slots, and the connection is sealed.

[0045] Two circulation pipe connectors 312 (one for refrigerant inlet and the other for refrigerant outlet) are fixedly connected to the back of the connecting plate 305. A liquid cooling circulation pipe 310 is installed between the two circulation pipe connectors 312. The liquid cooling circulation pipe 310 is located inside the cooling box body 301. Multiple stabilizing connecting pieces 311 are equidistantly arranged at the lower part of the pipe, and multiple stabilizing connecting pieces 309 are equidistantly arranged at the upper part. The stabilizing connecting pieces 309 are welded to the bottom of the sealing box cover 302, and the stabilizing connecting pieces 311 are welded to the inner wall of the bottom of the cooling box body 301. The stabilizing connecting pieces 309 and 311 cooperate to fix the liquid cooling circulation pipe 310 inside the cooling box body 301.

[0046] A circulation pipe connector 312 passes through one end of a connecting plate 305 and is fixedly installed with a weather-resistant (low-temperature and high-temperature resistant) connecting hose 306. The ends of the two connecting hoses 306 are connected to liquid-cooled connectors 307, which are fixedly connected to liquid-cooled plugs. The liquid-cooled plugs are fixedly installed on the upper part of the high-pressure box body 1 (see reference). Figure 6 (The plug marked "liquid cooling" is the liquid cooling plug.) The liquid cooling plug connects to an external refrigerant supply device. Liquid nitrogen is preferred as the refrigerant, but it can be replaced with low-temperature brine.

[0047] An inert gas control valve 304 is fixedly installed at one end of the top of the sealed box cover 302. Inert gas for heat exchange is injected into the interior of the cooling box body 301 through the inert gas control valve 304. The inert gas control valve 304 is a solenoid valve. The inert gas is preferably sulfur hexafluoride (SF6), but can be replaced by nitrogen or argon. The normal pressure of the inert gas inside the cooling box body 301 is three to five times the standard atmospheric pressure. The solenoid valve is controlled by the main control module. Under normal circumstances, the heat of the inert gas inside the cooling box body 301 is absorbed by the refrigerant through the liquid cooling circulation pipe 310. When necessary, the inert gas control valve 304 opens to release the inert gas inside the cooling box body 301, which acts as a protective gas inside the high-voltage box body 1. For example, sulfur hexafluoride has excellent insulation performance and arc extinguishing ability.

[0048] A mounting frame 308 is fixedly sleeved on the bottom of the cooling box body 301. A connecting protective plate 318 is fixedly installed at the bottom of the inner cavity of the mounting frame 308. A water-absorbing sponge pad 319 is provided on the upper surface of the connecting protective plate 318. The connecting protective plate 318 is preferably activated alumina, which can absorb some of the moisture inside the high-pressure box body 1. When the activated alumina is saturated with moisture, the refrigerant circulation inside the liquid cooling circulation pipe 310 can be stopped (the refrigerant inside the liquid cooling circulation pipe 310 needs to be emptied). The high temperature generated by the high-pressure box operation is used to heat the activated alumina, forcing it to release the adsorbed water molecules (in actual use, the activated alumina needs to be regenerated regularly according to the humidity changes in the high-pressure box environment). The water-absorbing sponge pad 319 is preferably ceramic sponge, but can be replaced with melamine sponge.

[0049] The bottom wall thickness of the cooling box body 301 is one-third to one-half of the side wall thickness, preferably one-third. Generally, the thickness of the cooling box body 301 is set to six millimeters, and the thickness of the bottom box is set to two millimeters, so that the main direction of heat absorption by the cooling box body 301 is concentrated at the bottom of the cooling box body 301.

[0050] The bottom of the cooling box body 301 is provided with an installation connection groove. A heat-conducting connection piece 313 is fixedly installed on the top wall of the installation connection groove. The thickness of the heat-conducting connection piece 313 is about one millimeter. Multiple heat-absorbing fins 314 are fixedly connected at equal intervals on its lower surface. The heat-absorbing fins 314 penetrate and connect the protective plate 318 and the water-absorbing sponge pad 319, and extend downward.

[0051] The bottom surface of the heat-absorbing fin 314 is set as an inclined surface, and the acute angle between the inclined surface and the lower surface of the heat-conducting connecting piece 313 is set to 20° to 40°, preferably 25°. Its front end (the end near the liquid cooling plug) is set as a high end, and its tail end is set as a low end; the high end of the bottom of the heat-absorbing fin 314 is close to the soft copper busbar 2 between the connecting socket and the fuse (refer to...). Figures 3 to 7 The soft copper busbar 2 is positioned higher, which facilitates the absorption of heat emitted by the soft copper busbar 2; the bottom end is close to the main control module and other components, which can more quickly absorb the heat emitted by various components in the lower part of the high-voltage box body 1.

[0052] A mounting connection block 320 is fixedly connected to the bottom of the tail end of the heat-absorbing fin 314. A collection connection box 322 is provided below the mounting connection block 320. A high-temperature resistant water-absorbing sponge 323 (preferably ceramic sponge) is provided inside the collection connection box 322 for water absorption. A connecting frame plate 324 is fixedly connected to the top of the collection connection box 322 and is fixedly installed on the mounting connection block 320.

[0053] Guide grooves 316 are provided on the lower part of both sides of the heat-absorbing fin 314. The axis of the guide grooves 316 is parallel to the bottom end of the heat-absorbing fin 314. The end of the guide grooves 316 near the collection and connection box 322 is bent and passes through the mounting block 320. The bottom inner wall of the guide grooves 316 is provided with guide grooves 317. The guide grooves 316 and 317 cooperate to facilitate the guidance of any condensate that may be present on the surface of the heat-absorbing fin 314 to the inside of the collection and connection box 322, where it is absorbed by the high-temperature resistant water-absorbing sponge 323, thus preventing the condensate from affecting the normal operation of other components inside the high-pressure box body 1.

[0054] Multiple guide grooves 315, with axes perpendicular to the lower surface of the heat-conducting connecting piece 313, are equidistantly provided on both sides of the heat-absorbing fin 314. The bottom end of the guide groove 315 is connected to the guide groove 316, which facilitates the collection and guidance of condensate on the surface of the heat-absorbing fin 314 into the guide groove 316. Multiple guide grooves 321, with axes 321, are equidistantly provided on the bottom of both sides of the mounting connecting block 320. The guide grooves 321 are connected to the guide groove 316, which facilitates the rapid guidance of condensate guided by the guide groove 316 into the collection connecting box 322.

[0055] To restore the water absorption properties of activated alumina, the vent valve on one side of the high-pressure tank body 1 needs to be opened (refer to...). Figure 7 High temperatures will cause the evaporation in the high-temperature absorbent sponge 323 to be discharged from the high-pressure box body 1 along with the replaced air.

[0056] In this embodiment, the main control module controls the refrigerant to circulate inside the liquid cooling circulation pipe 310. The refrigerant absorbs heat from the inert gas inside the cooling box body 301 through the liquid cooling circulation pipe 310. The inert gas absorbs heat from the inside of the high-pressure box body 1 through the heat-absorbing fins 314. The circulation of the refrigerant and the double heat exchange achieve cooling inside the high-pressure box body 1. At the same time, it avoids damage to the high-pressure box body 1 due to damage to the liquid cooling circulation pipe 310. The ejectable inert gas acts as a protector inside the high-pressure box body 1, improving the safety of the high-pressure box.

[0057] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-voltage box with high seismic resistance, comprising a high-voltage box body (1) with a built-in fuse, relay, and main control module, wherein a connection socket is fixedly installed on the outer wall of the high-voltage box body (1), and copper busbars are installed between the connection socket and the fuse, and between the connection socket and the relay, and a cooler (3) is fixedly installed on the top of the inner cavity of the high-voltage box body (1), characterized in that: The copper busbar is configured as a soft copper busbar (2), the main body of the soft copper busbar (2) is configured as a laminated copper busbar main body (201), and the two ends of the laminated copper busbar main body (201) are configured as irregularly shaped terminals to increase connection stability; the main body of the cooler (3) is configured as a cooling box main body (301), the interior of the cooling box main body (301) is provided with a liquid cooling circulation pipe (310), and the bottom end of the cooling box main body (301) is provided with heat-absorbing fins (314) that can guide condensate, and the bottom of one end of the heat-absorbing fins (314) is provided with a gathering connection box (322), and the interior of the gathering connection box (322) is provided with a high-temperature resistant water-absorbing sponge (323) for water absorption; The bottom of the cooling box body (301) is fixedly sleeved with an installation connecting frame (308), and a connecting protective plate (318) is fixedly installed at the bottom of the inner cavity of the installation connecting frame (308). A water-absorbing sponge pad (319) is provided on the upper surface of the connecting protective plate (318). The bottom wall thickness of the cooling box body (301) is one-third to one-half of the side wall thickness, and the bottom of the cooling box body (301) is provided with an installation connection groove. A heat-conducting connection piece (313) is fixedly installed on the top wall of the installation connection groove. Multiple heat-absorbing fins (314) are equidistantly arranged and fixedly connected to the lower surface of the heat-conducting connection piece (313), and pass through and connect the protective plate (318) and the water-absorbing sponge pad (319). The bottom surface of the heat-absorbing fin (314) is set as an inclined surface, and the inclined surface is connected to the heat-conducting surface. The acute angle between the lower surfaces of the connecting plate (313) is set to 20° to 40°, and the bottom of the heat-absorbing fin (314) is fixedly connected to the mounting connecting block (320), and the top of the gathering connecting box (322) is fixedly connected to the connecting frame plate (324), and the connecting frame plate (324) is fixedly installed on the mounting connecting block (320); The lower part of both sides of the heat-absorbing fin (314) is provided with a guide groove (316). The axis of the guide groove (316) is parallel to the bottom end of the heat-absorbing fin (314). The guide groove (316) is bent at one end near the gathering connection box (322) and passes through the installation connection block (320). The heat-absorbing fins (314) are provided with multiple guide grooves (315) at equal intervals on both sides, with their axes perpendicular to the lower surface of the heat-conducting connecting piece (313). The bottom end of the guide groove (315) is connected to the guide groove (316). The bottom inner wall of the guide groove (316) is provided with a guide groove (317). The bottom of both sides of the mounting connecting block (320) is provided with multiple guide grooves (321) at equal intervals. The guide grooves (321) are connected to the guide grooves (316).

2. A high-voltage box with high seismic resistance according to claim 1, characterized in that: A connecting plate (305) is movably installed on the front of the cooling box body (301). Two circulation pipe connecting heads (312) that penetrate the connecting plate (305) are fixedly connected to the back of the connecting plate (305). One end of the circulation pipe connecting head (312) is connected to a liquid cooling connector (307). A liquid cooling plug is fixedly connected to the liquid cooling connector (307). The liquid cooling plug is fixedly installed on the upper part of the high-pressure box body (1).

3. A high-voltage box with high seismic resistance according to claim 1, characterized in that... It lies in: A sealing cover (302) is fixedly installed on the top of the cooling box body (301). An inert gas control valve (304) is fixedly installed on one end of the top of the sealing cover (302). Inert gas for heat exchange is injected into the interior of the cooling box body (301) through the inert gas control valve (304). The inert gas control valve (304) is configured as a solenoid valve.

4. A high-voltage box with high seismic resistance according to claim 1, characterized in that: The irregular terminal includes an irregular terminal two (204), one end of the upper surface of the irregular terminal two (204) is provided with a groove one for engaging and snapping, the depth of the groove one is half the thickness of the irregular terminal two (204); the irregular terminal also includes an irregular terminal three (205), the main body of the irregular terminal three (205) is a long strip plate, and the side away from the main body of the stacked copper busbar (201) is integrally formed with a vertically scaled-down insert plate.

5. A high-voltage box with high seismic resistance according to claim 1, characterized in that: The irregular terminal includes irregular terminal five (207), the main body of which is a flat plate, and the upper surface of the flat plate is integrally formed with multi-faceted inserts; the irregular terminal also includes irregular terminal seven (209), the main body of which is a U-shaped card holder, and both ends of the bottom inner wall of the card holder are fixedly installed with Ω-shaped elastic bracket plates.

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