Energy storage high-voltage box and energy storage system

Abstract

The utility model provides an energy storage high-voltage box and an energy storage system. The energy storage high-voltage box comprises a box body, a heating component set, a heat dissipation assembly and a spoiler, an installation cavity is formed in the box body, the heating component set is arranged in the installation cavity, the heat dissipation assembly is embedded in the wall face of the box body, the heat dissipation assembly comprises a heat absorption part and a heat dissipation part which are connected with each other, the heat absorption part is located in the installation cavity, and the heat dissipation part is located outside the installation cavity. The spoiler is arranged in the mounting cavity and used for driving gas in the mounting cavity to flow. According to the energy storage high-voltage box, the temperature of the box body is reduced, the temperature uniformity in the mounting cavity can be improved, and the temperature of a local position is prevented from being too high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage equipment, in particular to an energy storage high-voltage box and an energy storage system. BACKGROUND

[0002] The energy storage high-voltage box is an important component of the energy storage system, and the energy storage high-voltage box is internally provided with heat-generating components such as fuses and copper bars.

[0003] The energy storage high-voltage box in the related art has the problem of high internal temperature. CONTENT OF THE UTILITY MODEL

[0004] Embodiments of the present application provide an energy storage high-voltage box and an energy storage system, which can improve the technical problem of high temperature in the energy storage high-voltage box.

[0005] In a first aspect, embodiments of the present application provide an energy storage high-voltage box, comprising:

[0006] a box body, which forms a mounting cavity;

[0007] a heat-generating component group, which is arranged in the mounting cavity;

[0008] a heat dissipation assembly, which is embedded in a wall surface of the box body, the heat dissipation assembly comprising a heat absorption part and a heat dissipation part connected to each other, the heat absorption part being located in the mounting cavity, and the heat dissipation part being located outside the mounting cavity;

[0009] a turbulence piece, which is arranged in the mounting cavity, and is used to drive the gas in the mounting cavity to flow.

[0010] In an embodiment, the heat absorption part forms a first air duct, which is in communication with the mounting cavity; and / or,

[0011] the heat dissipation part forms a second air duct, and the energy storage high-voltage box further comprises a heat dissipation fan, which is arranged at the heat dissipation part and is used to drive the gas at the second air duct to flow.

[0012] In an embodiment, the heat absorption part comprises at least two heat absorption fins, the at least two heat absorption fins are arranged side by side, and the first air duct is formed between adjacent two heat absorption fins; and / or,

[0013] the heat dissipation part comprises at least two heat dissipation fins, the at least two heat dissipation fins are arranged side by side, and the second air duct is formed between adjacent two heat dissipation fins.

[0014] In an embodiment, the energy storage high-voltage box further comprises a cover plate, which is connected to an outer wall of the box body, a containing space is formed between the cover plate and the outer wall of the box body, and the heat dissipation part and the heat dissipation fan are both located in the containing space.

[0015] In an embodiment, a third air duct is formed between the heat-generating component group and the inner wall surface of the box, and the third air duct is in communication with the first air duct; and / or,

[0016] The heat-generating component group comprises at least two heat-generating components, and a gap is formed between adjacent two heat-generating components, and the gap is in communication with the first air duct.

[0017] In an embodiment, the heat-dissipating assembly further comprises a heat-conducting connecting plate, the heat-conducting connecting plate connects the heat-dissipating part and the heat-absorbing part, and the heat-conducting connecting plate is embedded in the wall surface of the box.

[0018] In an embodiment, the box comprises a body, the body is formed with a connecting cavity, the heat-conducting connecting plate is embedded in the connecting cavity, and the heat-conducting connecting plate and the body form the mounting cavity.

[0019] In an embodiment, the body comprises a first side plate, a second side plate and a third side plate connected in sequence, and the heat-conducting connecting plate is fixedly connected with the first side plate and the third side plate to form a side wall of the body.

[0020] In an embodiment, the heat-conducting connecting plate and the body are made of the same material, and the heat-conducting connecting plate is fixedly connected with the body by welding; or,

[0021] The heat-conducting connecting plate and the body are made of different materials, and the heat-conducting connecting plate is fixedly connected with the body by at least one of clamping, threaded connection and interference fit.

[0022] In a second aspect, an embodiment of the present application provides an energy storage system comprising the energy storage high-voltage box.

[0023] The embodiment of the present application has the following beneficial effects:

[0024] In the embodiment of the present application, the heat-absorbing part is arranged in the mounting cavity, and the heat-dissipating part is arranged outside the mounting cavity, so that the heat in the mounting cavity can be transferred to the heat-dissipating part through the heat-absorbing part, and then directly dissipated to the external environment, thereby accelerating the heat dissipation speed in the mounting cavity. At the same time, the gas in the mounting cavity is driven to flow by the flow disturbing member, thereby accelerating the heat exchange speed between the heat in the mounting cavity and the heat-absorbing part, so that the heat in the mounting cavity can be quickly transferred to the external environment, thereby reducing the temperature of the box. Moreover, the gas in the mounting cavity is driven to flow by the flow disturbing member, thereby improving the temperature uniformity in the mounting cavity and avoiding excessively high temperature in local positions. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0026] Figure 1 is a structural schematic diagram of the energy storage high-voltage box provided by the embodiments of the present application;

[0027] Figure 2 is a structural schematic diagram of the energy storage high-voltage box provided by the embodiments of the present application;

[0028] Figure 3 is a structural schematic diagram of the heat dissipation assembly provided by the embodiments of the present application;

[0029] Figure 4 is a partial structural schematic diagram of the energy storage high-voltage box provided by the embodiments of the present application;

[0030] Figure 5 is a structural schematic diagram of the energy storage high-voltage box provided by the embodiments of the present application, wherein the heat-conducting connecting plate is a side wall of the body. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort fall within the scope of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, and specifically refer to the direction of the drawing surface in the drawings; and "inner" and "outer" refer to the contour of the device.

[0032] The energy storage high-voltage box and the energy storage system of the present application will be described below. Figures 1 to 5

[0033] According to the embodiments of the first aspect of the present application, with reference to Figure 1 , Figure 2 and Figure 3 ​The energy storage high-voltage box includes a box body 1, a heating element group 2, a heat dissipation component 3, and a baffle 4. The box body 1 forms an installation cavity 11. The heating element group 2 is located in the installation cavity 11. The heat dissipation component 3 is embedded in the wall of the box body 1. The heat dissipation component 3 includes a heat absorption part 31 and a heat dissipation part 32 connected to each other. The heat absorption part 31 is located in the installation cavity 11, and the heat dissipation part 32 is located outside the installation cavity 11. The baffle 4 is located in the installation cavity 11 and is used to drive the gas flow in the installation cavity 11.

[0034] According to the embodiments of this application, the high-voltage energy storage box, by placing the heat-absorbing part 31 inside the mounting cavity 11 and the heat-dissipating part 32 outside the mounting cavity 11, allows heat inside the mounting cavity 11 to be transferred to the heat-dissipating part 32 through the heat-absorbing part 31 and then directly dissipated into the external environment, thus accelerating the heat dissipation rate inside the mounting cavity 11. Simultaneously, the airflow within the mounting cavity 11 is accelerated by the flow-dispersing element 4, increasing the heat exchange rate between the heat inside the mounting cavity 11 and the heat-absorbing part 31, allowing the heat inside the mounting cavity 11 to be quickly transferred to the external environment, thereby reducing the temperature of the box body 1. Furthermore, the airflow within the mounting cavity 11 driven by the flow-dispersing element 4 improves the temperature uniformity within the mounting cavity 11, preventing excessively high temperatures in certain areas.

[0035] In some examples, the spoiler 4 is, for example, a spoiler fan or an exhaust fan.

[0036] In some examples, the heat-generating component group 2 includes, for example, at least one of a current busbar, a shunt, a pre-charge resistor, a disconnect switch, and a fuse.

[0037] In some embodiments, see Figure 1 and Figure 3 The heat absorption part 31 has a first air duct 311, which is connected to the mounting cavity 11.

[0038] It is understandable that the gas in the mounting cavity 11 carries the heat emitted by the heating element group 2. By forming a first air duct 311 in the heat absorption part 31 that communicates with the mounting cavity 11, when the turbulence member 4 drives the gas in the mounting cavity 11 to flow, the gas in the mounting cavity 11 will flow into the first air duct 311, thereby allowing the gas carrying heat to enter the first air duct 311 and exchange heat with the heat absorption part 31, which improves the heat absorption speed of the heat absorption part 31 and accelerates the heat dissipation speed of the energy storage high-voltage box.

[0039] It is understandable that by forming a first air duct 311 in the heat absorption part 31, the contact area between the heat absorption part 31 and the gas in the mounting cavity 11 can be increased, that is, the heat exchange area of ​​the heat absorption part 31 can be increased, thereby accelerating the absorption rate of heat in the mounting cavity 11 by the heat absorption part 31 and realizing rapid heat dissipation of the energy storage high-voltage box.

[0040] In some embodiments, seeFigure 2 and Figure 3 The heat dissipation part 32 is formed with a second air duct 321, and the energy storage high-voltage box further comprises a heat dissipation fan 5 arranged at the heat dissipation part 32, and the heat dissipation fan 5 is used to drive the gas flow at the second air duct 321.

[0041] It can be understood that the heat absorption part 31 can transfer the heat in the mounting cavity 11 to the heat dissipation part 32. By arranging the heat dissipation fan 5 at the heat dissipation part 32, the heat dissipation fan 5 is used to drive the gas flow at the second air duct 321, thereby accelerating the speed of heat dissipation of the heat dissipation part 32 to the external environment. The faster the heat dissipation of the heat dissipation part 32, the faster the heat exchange between the heat dissipation part 32 and the heat absorption part 31, and the faster the heat dissipation speed of the energy storage high-voltage box.

[0042] It can be understood that by forming the second air duct 321 at the heat dissipation part 32, the contact area between the heat dissipation part 32 and the external environment can be increased, that is, the heat dissipation area of the heat dissipation part 32 is increased, and the heat dissipation speed of the heat dissipation part 32 can be accelerated by cooperating with the heat dissipation fan 5.

[0043] In some embodiments, referring to Figure 3 The heat absorption part 31 comprises at least two heat absorption fins 312, and the at least two heat absorption fins 312 are arranged side by side, and a first air duct 311 is formed between adjacent two heat absorption fins 312.

[0044] It can be understood that each heat absorption fin 312 can exchange heat with the gas in the mounting cavity 11, thereby ensuring the heat absorption speed of the heat absorption part 31. Meanwhile, the first air duct 311 is formed between adjacent two heat absorption fins 312, so that the heat in the mounting cavity 11 can flow to the space between adjacent two heat absorption fins 312 along with the gas, thereby ensuring the heat absorption area of the heat absorption fin 312 and improving the heat absorption speed of the heat absorption part 31.

[0045] In some examples, the heat absorption part 31 comprises at least three heat absorption fins 312.

[0046] In some embodiments, referring to Figure 3 The heat dissipation part 32 comprises at least two heat dissipation fins 322, and the at least two heat dissipation fins 322 are arranged side by side, and a second air duct 321 is formed between adjacent two heat dissipation fins 322.

[0047] It can be understood that each heat dissipation fin 322 can exchange heat with the gas of the external environment, ensuring the heat dissipation speed of the heat dissipation part 32, and each heat dissipation fin 322 can exchange heat with the heat absorption part 31, ensuring that the heat absorption part 31 can quickly transfer the heat in the mounting cavity 11 to the heat dissipation part 32. At the same time, the second air duct 321 is formed between the adjacent two heat dissipation fins 322, ensuring the contact area of the heat dissipation fin 322 with the external environment and improving the heat dissipation speed.

[0048] In some embodiments, referring to Figure 1 and Figure 2 The energy storage high-voltage box further comprises a cover plate 6 connected to the outer wall of the box body 1, and a containing space is formed between the cover plate 6 and the outer wall of the box body 1, and the heat dissipation part 32 and the heat dissipation fan 5 are located in the containing space.

[0049] It can be understood that the cover plate 6 covers the heat dissipation part 32 and the heat dissipation fan 5, and the cover plate 6 can protect the heat dissipation part 32 and the heat dissipation fan 5. At the same time, the containing space is formed by the cover plate 6 and the outer wall of the box body 1, and the heat dissipation part 32 and the heat dissipation fan 5 are arranged in the containing space, so that the heat dissipation fan 5 can quickly drive the gas in the containing space to flow, thereby quickly driving the gas at the heat dissipation part 32 to flow.

[0050] It can be understood that if the heat dissipation part 32 and the heat dissipation fan 5 are not covered by the cover plate 6, the heat dissipation fan 5 will also drive the flow of gas far from the heat dissipation part 32 when working, which reduces the flow speed of the gas at the heat dissipation part 32 and is not conducive to the rapid heat dissipation of the heat dissipation part 32.

[0051] In some examples, the heat dissipation fan 5 is arranged adjacent to the heat dissipation part 32 in the containing space, so that the heat dissipation fan 5 can quickly drive the gas at the heat dissipation part 32 to flow.

[0052] In some embodiments, referring to Figure 1 and Figure 2 A third air duct 7 is formed between the heat-generating component group 2 and the inner wall of the box body 1, and the third air duct 7 is in communication with the first air duct 311.

[0053] It can be understood that the flow disturbing piece 4 can drive the gas in the mounting cavity 11 to flow along the third air duct 7, and since the third air duct 7 is adjacent to the heat-generating component group 2, the gas flowing in the third air duct 7 will carry away the heat of the heat-generating component group 2. At the same time, since the third air duct 7 is in communication with the first air duct 311, the gas carrying the heat of the heat-generating component group 2 will flow to the first air duct 311, so as to realize the rapid heat exchange between the heat absorption part 31 and the heat-generating component group 2.

[0054] In some examples, the third air duct 7 is arranged around the group of heat-generating components 2, and the gas flowing along the third air duct 7 can comprehensively dissipate heat from the group of heat-generating components 2, thereby improving the heat dissipation speed of the group of heat-generating components 2.

[0055] In some embodiments, referring to Figure 1 and Figure 2 , the group of heat-generating components 2 includes at least two heat-generating components 21, and a gap is formed between adjacent two heat-generating components 21, and the gap is in communication with the first air duct 311.

[0056] It can be understood that the adjacent two heat-generating components 21 are arranged with a gap therebetween, and when the gas in the mounting cavity 11 is driven to flow by the spoiler 4, the gas will flow through the gap between the adjacent two heat-generating components 21, thereby accelerating the heat dissipation speed of the heat-generating components 21, so that the gas can effectively carry the heat of the heat-generating components 21 to the heat-absorbing part 31, thereby improving the heat dissipation speed of the energy storage high-voltage tank.

[0057] Meanwhile, the gap formed between the adjacent two heat-generating components 21 can avoid the heat at the contact position being difficult to dissipate due to the contact between the adjacent two heat-generating components 21, and can prevent the temperature between the adjacent two heat-generating components 21 from being too high.

[0058] In some embodiments, referring to Figure 3 , the heat dissipation assembly 3 further includes a heat-conducting connecting plate 33, the heat-conducting connecting plate 33 connects the heat-dissipating part 32 and the heat-absorbing part 31, and the heat-conducting connecting plate 33 is embedded in the wall surface of the tank body 1.

[0059] It can be understood that the heat-dissipating part 32 and the heat-absorbing part 31 are respectively arranged on two sides of the heat-conducting connecting plate 33, and the heat-conducting connecting plate 33 is embedded in the wall surface of the tank body 1, so that the heat-dissipating part 32 is located outside the mounting cavity 11, and the heat-absorbing part 31 is located inside the mounting cavity 11, and the heat-dissipating part 32 can transmit the heat in the mounting cavity 11 to the heat-dissipating part 32 through the heat-conducting connecting plate 33, so that the heat dissipation assembly 3 can quickly dissipate heat from the tank body 1.

[0060] It can be understood that the heat in the mounting cavity 11 can also be transmitted to the external environment through the heat-conducting connecting plate 33, thereby further improving the heat dissipation speed of the tank body 1.

[0061] In some embodiments, referring to Figure 3 and Figure 4 , the tank body 1 includes a main body 12, the main body 12 forms a connecting cavity 121, the heat-conducting connecting plate 33 is embedded in the connecting cavity 121, and the heat-conducting connecting plate 33 and the main body 12 form the mounting cavity 11.

[0062] It can be understood that the heat-conducting connecting plate 33 is embedded at the connecting cavity 121, so that the heat-conducting connecting plate 33 can be surrounded by the body 12 to form the mounting cavity 11. That is, the heat-conducting connecting plate 33 is not only one of the structural components of the heat-dissipating assembly 3, but also one of the structural components of the cabinet 1, which realizes the reuse of the heat-conducting connecting plate 33 and is conducive to simplifying the structure of the energy storage high-voltage cabinet.

[0063] For example, the heat-conducting connecting plate 33 can be reused as one of the side walls of the body 12, or a part of one of the side walls.

[0064] In some embodiments, referring to Figure 5 The body 12 includes a first side plate 122, a second side plate 123, and a third side plate 124 connected in sequence, and the heat-conducting connecting plate 33 is fixedly connected between the first side plate 122 and the third side plate 124 to form a side wall of the body 12.

[0065] It can be understood that the heat-conducting connecting plate 33 is used as one of the side plates of the body 12, and the heat-conducting connecting plate 33 is fixedly connected between the first side plate 122 and the third side plate 124, so that the heat-conducting connecting plate 33, the first side plate 122, the second side plate 123, and the third side plate 124 can be connected in sequence to form a side wall of the body 12, which realizes the reuse of the heat-conducting connecting plate 33 as a side plate of the body 12 and is conducive to simplifying the structure of the body 12.

[0066] It can be understood that the body 12 further includes a top plate and a bottom plate, one end of the heat-conducting connecting plate 33, the first side plate 122, the second side plate 123, and the third side plate 124 is connected with the top plate, and the other end of the heat-conducting connecting plate 33, the first side plate 122, the second side plate 123, and the third side plate 124 is connected with the bottom plate.

[0067] In some embodiments, the heat-conducting connecting plate 33 and the body 12 are made of the same material, and the heat-conducting connecting plate 33 is fixedly connected with the body 12 by welding.

[0068] It can be understood that when the heat-conducting connecting plate 33 and the body 12 are made of the same material, the heat-conducting connecting plate 33 and the body 12 can be directly fixedly connected by welding, which improves the stability and sealing performance of the connection between the heat-conducting connecting plate 33 and the body 12.

[0069] In some embodiments, the heat-conducting connecting plate 33 and the body 12 are made of different materials, and the heat-conducting connecting plate 33 is fixedly connected with the body 12 by at least one of clamping, threaded connection, and interference fit.

[0070] It can be understood that when the heat-conducting connecting plate 33 and the body 12 are made of different materials, it is difficult to use welding to fixedly connect the body 12 and the heat-conducting connecting plate 33 together. Therefore, at least one of clamping, threaded connection and interference fit is used to fixedly connect the heat-conducting connecting plate 33 and the body 12 together in the embodiment.

[0071] In some examples, a sealing member is arranged at the connection between the heat-conducting connecting plate 33 and the body 12. It can be understood that the sealing performance of the connection between the heat-conducting connecting plate 33 and the body 12 can be effectively improved by the sealing member, so that the cooling liquid can be prevented from penetrating into the mounting cavity 11.

[0072] According to the embodiment of the second aspect of the application, the energy storage system comprises the energy storage high-voltage box described above.

[0073] According to the energy storage system of the embodiment of the application, the heat-absorbing part 31 is arranged in the mounting cavity 11, and the heat-dissipating part 32 is arranged outside the mounting cavity 11, so that the heat in the mounting cavity 11 can be transferred to the heat-dissipating part 32 through the heat-absorbing part 31, and then directly dissipated to the external environment, thereby accelerating the heat dissipation speed in the mounting cavity 11. At the same time, the gas in the mounting cavity 11 is driven to flow by the flow disturbing member 4, thereby accelerating the heat exchange speed between the heat in the mounting cavity 11 and the heat-absorbing part 31, so that the heat in the mounting cavity 11 can be quickly transferred to the external environment. Moreover, the gas in the mounting cavity 11 is driven to flow by the flow disturbing member 4, thereby improving the temperature uniformity in the mounting cavity 11, avoiding excessively high temperature in local positions, and further improving the use safety of the energy storage system.

[0074] It should be noted that the energy storage system can be a vehicle or an energy storage charging station. It should be noted that the foregoing is only an example of the energy storage system, and does not specially limit the energy storage system.

[0075] The embodiments of the application are described in detail above, and the specific examples are applied to the principles and implementation modes of the application. The above description of the embodiments is only used to help understand the method of the application and its core idea; at the same time, for those skilled in the art, according to the idea of the application, the specific implementation mode and application range will be changed; in view of the above, the content of the description should not be understood as a limitation of the application.

Claims

1. An energy storage high voltage tank, characterized in that, The energy storage high-voltage box comprises: a box body formed with a mounting cavity; a heating component group arranged in the mounting cavity; a heat dissipation assembly embedded in a wall surface of the box body, the heat dissipation assembly comprising a heat absorbing part and a heat dissipating part connected with each other, the heat absorbing part being located in the mounting cavity, and the heat dissipating part being located outside the mounting cavity; a spoiler arranged in the mounting cavity, the spoiler being used to drive the gas in the mounting cavity to flow.

2. The energy storage high voltage tank of claim 1, wherein, The heat absorbing part is formed with a first air duct, and the first air duct is in communication with the mounting cavity; and / or The heat dissipating part is formed with a second air duct, and the energy storage high-voltage box further comprises a heat dissipation fan arranged at the heat dissipating part, the heat dissipation fan being used to drive the gas at the second air duct to flow.

3. The energy storage high voltage tank of claim 2, wherein, The heat absorbing part comprises at least two heat absorbing fins arranged side by side, and the first air duct is formed between adjacent two heat absorbing fins; and / or The heat dissipating part comprises at least two heat dissipating fins arranged side by side, and the second air duct is formed between adjacent two heat dissipating fins.

4. The energy storage high pressure tank of claim 2, wherein, The energy storage high-voltage box further comprises a cover plate connected to an outer wall of the box body, and a containing space is formed between the cover plate and the outer wall of the box body, and the heat dissipating part and the heat dissipation fan are located in the containing space.

5. The energy storage high pressure tank of claim 2, wherein, The third air duct is in communication with the first air duct; and / or The heating component group comprises at least two heating elements, and a gap is formed between adjacent two heating elements, and the gap is in communication with the first air duct.

6. The energy storage high voltage tank according to any one of claims 1 to 5, characterized in that, The heat dissipation assembly further comprises a heat conduction connecting plate connecting the heat dissipating part and the heat absorbing part, and the heat conduction connecting plate is embedded in the wall surface of the box body.

7. The energy storage high pressure tank of claim 6, wherein, The box body comprises a main body formed with a connecting cavity, the heat conduction connecting plate is embedded in the connecting cavity, and the heat conduction connecting plate and the main body form the mounting cavity.

8. The energy storage high pressure tank of claim 7, wherein, The main body comprises a first side plate, a second side plate and a third side plate connected in sequence, and the heat conduction connecting plate is fixedly connected with the first side plate and the third side plate to form a side wall of the main body.

9. The energy storage high pressure tank of claim 7, wherein, The heat conduction connecting plate and the main body are made of the same material, and the heat conduction connecting plate is fixedly connected with the main body by welding; or The heat conduction connecting plate and the main body are made of different materials, and the heat conduction connecting plate is fixedly connected with the main body by at least one of clamping, threaded connection and interference fit.

10. An energy storage system characterized by, The energy storage high-voltage box comprises: a box body formed with a mounting cavity; a heating component group arranged in the mounting cavity; a heat dissipation assembly embedded in a wall surface of the box body, the heat dissipation assembly comprising a heat absorbing part and a heat dissipating part connected with each other, the heat absorbing part being located in the mounting cavity, and the heat dissipating part being located outside the mounting cavity; a spoiler arranged in the mounting cavity, the spoiler being used to drive the gas in the mounting cavity to flow. The heat absorbing part is formed with a first air duct, and the first air duct is in communication with the mounting cavity; and / or The heat dissipating part is formed with a second air duct, and the energy storage high-voltage box further comprises a heat dissipation fan arranged at the heat dissipating part, the heat dissipation fan being used to drive the gas at the second air duct to flow. The heat absorbing part comprises at least two heat absorbing fins arranged side by side, and the first air duct is formed between adjacent two heat absorbing fins; and / or The heat dissipating part comprises at least two heat dissipating fins arranged side by side, and the second air duct is formed between adjacent two heat dissipating fins. The energy storage high-voltage box further comprises a cover plate connected to an outer wall of the box body, and a containing space is formed between the cover plate and the outer wall of the box body, and the heat dissipating part and the heat dissipation fan are located in the containing space. The third air duct is in communication with the first air duct; and / or The heating component group comprises at least two heating elements, and a gap is formed between adjacent two heating elements, and the gap is in communication with the first air duct. The heat dissipation assembly further comprises a heat conduction connecting plate connecting the heat dissipating part and the heat absorbing part, and the heat conduction connecting plate is embedded in the wall surface of the box body. The box body comprises a main body formed with a connecting cavity, the heat conduction connecting plate is embedded in the connecting cavity, and the heat conduction connecting plate and the main body form the mounting cavity. The main body comprises a first side plate, a second side plate and a third side plate connected in sequence, and the heat conduction connecting plate is fixedly connected with the first side plate and the third side plate to form a side wall of the main body. The heat conduction connecting plate and the main body are made of the same material, and the heat conduction connecting plate is fixedly connected with the main body by welding; or The heat conduction connecting plate and the main body are made of different materials, and the heat conduction connecting plate is fixedly connected with the main body by at least one of clamping, threaded connection and interference fit. The energy storage high-voltage box comprises:

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