Heat dissipation structure of immersed energy storage pack in non-circulating form

Abstract

The utility model relates to a heat dissipation structure of an immersed energy storage pack in a non-circulating form, and belongs to the technical field of heat dissipation structures of energy storage batteries. The heat dissipation device comprises a box body and a heat dissipation mechanism, a containing cavity is formed in the box body, the containing cavity is used for containing an energy storage battery body, cooling liquid is contained in the containing cavity, the cooling liquid is used for immersing the energy storage battery body, and the cooling liquid in the containing cavity is static; the heat dissipation mechanism comprises a heat dissipation assembly, the inner side of the heat dissipation assembly is used for being connected with the outer side of an energy storage battery body, and the outer side of the heat dissipation assembly is matched with the inner side of the box body, so that heat of the heat dissipation assembly can be transmitted to the box body. The application has the effect of improving the problem of high use cost of the immersed energy storage pack.

Description

Technical Field

[0001] This application relates to the field of heat dissipation structure technology for energy storage batteries, and in particular to a heat dissipation structure for a non-cyclic immersion energy storage pack. Background Technology

[0002] In the manufacturing process of energy storage battery systems, "pack" refers to the packaging and encapsulation of the energy storage battery. Since the battery cells in a battery module generate heat during use, a heat dissipation structure needs to be incorporated into the pack of the energy storage battery system to ensure the battery module maintains optimal performance.

[0003] Currently, because traditional immersion energy storage packs with non-circulating coolant cannot meet the heat dissipation requirements under natural and air-cooled conditions, most immersion energy storage packs adopt a circulating coolant design, which achieves the purpose of cooling and heat dissipation by setting up circulating coolant inside the tank.

[0004] However, as Figure 1 As shown, the above cooling method requires the setting of a coolant circulation system and equipment 10 for the energy storage pack 20 to circulate coolant. It also requires independent space to install the coolant circulation system and equipment 10 and provide a large amount of surplus coolant, which will increase space and material waste. Furthermore, if a cell in a certain energy storage pack experiences thermal runaway, the coolant in all energy storage packs in the circulation system will be contaminated and wasted, greatly increasing the cost.

[0005] Among the aforementioned technologies, the high cost of using submerged energy storage packs is a drawback. Utility Model Content

[0006] To address the issue of high operating costs associated with immersion energy storage packs, this application provides a non-cyclic heat dissipation structure for an immersion energy storage pack.

[0007] The heat dissipation structure of the non-cyclic immersion energy storage pack provided in this application adopts the following technical solution:

[0008] A non-cyclic immersion energy storage pack heat dissipation structure for cooling the energy storage battery body, the non-cyclic immersion energy storage pack heat dissipation structure includes: a housing, the housing having a receiving cavity for placing the energy storage battery body, the receiving cavity containing coolant for immersing the energy storage battery body, the coolant in the receiving cavity being static; and a heat dissipation mechanism, the heat dissipation mechanism including a heat dissipation component, the inner side of the heat dissipation component for connecting to the outer side of the energy storage battery body, the outer side of the heat dissipation component cooperating with the inner side of the housing, so that the heat of the heat dissipation component can be transferred to the housing.

[0009] By adopting the above technical solution, the housing cavity of the enclosure is used to place the energy storage battery body and hold the coolant, allowing the energy storage battery body to be submerged in the coolant, ensuring the safety of the energy storage battery body during use. Since the coolant is stagnant in the housing cavity, a heat dissipation mechanism is required. This mechanism connects to the outside of the energy storage battery body via a heat dissipation component, with the outside of the component engaging with the inside of the enclosure. This allows the heat dissipation component to act as a heat transfer medium, transferring the heat generated by the energy storage battery body to the enclosure through the heat dissipation component in contact with the battery body, thus achieving heat dissipation through conduction and ensuring sufficient cooling effect. Because the coolant is non-circulating, the need for an external cooling circulation system is reduced, helping to reduce space occupation and coolant consumption, thus lowering operating costs. Simultaneously, it reduces the risk of cross-contamination between energy storage batteries in different enclosures due to coolant circulation, improving reliability.

[0010] Optionally, the heat dissipation assembly includes two heat sinks, which are respectively disposed on a first side and a second side opposite to each other on the energy storage battery body. The inner side of the heat sink is used to fit against the energy storage battery body, and the heat sink is used to conduct heat from the energy storage battery body to the housing.

[0011] By adopting the above technical solution, the heat sink is attached to the energy storage battery body. Through contact heat transfer, the heat of the energy storage battery body can be conducted to the heat sink, and then the heat sink can transfer the heat to the housing, thereby achieving heat dissipation of the energy storage battery body.

[0012] Optionally, the heat sink has a toothed structure on the side away from the housing.

[0013] By adopting the above technical solution, the toothed structure helps to increase the heat dissipation area, thereby optimizing the heat dissipation effect of the heat sink on the energy storage battery body.

[0014] Optionally, the heat dissipation mechanism includes a heat-conducting beam disposed inside the housing. The heat-conducting beam divides the receiving cavity into a first cavity and a second cavity. Both the first cavity and the second cavity are used to place the energy storage battery body. The side of the heat-conducting beam cooperates with the toothed structure, so that the heat of the toothed structure can be transferred to the heat-conducting beam.

[0015] By adopting the above technical solution, a storage battery body is placed in both the first cavity and the second cavity. The two sides of the heat-conducting beam can cooperate with the heat sinks on the sides of the two storage battery bodies, thereby simultaneously achieving heat conduction and heat dissipation for the two storage battery bodies, improving the heat transfer efficiency between them and the storage battery bodies, and improving the heat dissipation effect.

[0016] Optionally, the inner side of the housing is provided with a protruding structure, which cooperates with the toothed structure.

[0017] By adopting the above technical solution, the raised structure helps to increase the side area of ​​the enclosure, making it easier to dissipate the heat transferred from the heat dissipation mechanism and optimize the heat dissipation effect; in addition, the raised structure can help to cooperate with the toothed structure to improve the heat transfer efficiency.

[0018] Optionally, it also includes an insulating film, which is disposed on the outer periphery of the energy storage battery body.

[0019] By adopting the above technical solutions, the insulating film can ensure the safety of the energy storage battery body and reduce the risk of electron loss and overheating of the energy storage battery body.

[0020] Optionally, it also includes a support mechanism, which includes two buffers and two end plates. The two end plates are respectively disposed at opposite ends of the energy storage battery body. The buffers are sandwiched between the end plates and the energy storage battery body, and the buffers are flexible.

[0021] By adopting the above technical solution, the end plate is used to protect and support both ends of the energy storage battery body. A buffer is set between the end plate and the energy storage battery body. The flexible buffer can provide assembly tolerance for the fit between the energy storage battery body and the housing, as well as buffer the expansion force between the energy storage battery body and the housing in the later stage, thereby improving assembly reliability and reducing the risk of damage caused by the heat of the energy storage battery body.

[0022] Optionally, the support mechanism includes a base plate for connecting to the bottom of the energy storage battery body, the bottom of the housing is filled with thermally conductive silicone, and the base plate is used to mate with the bottom of the housing.

[0023] By adopting the above technical solution, the bottom of the energy storage battery body is connected to the bottom of the box through the base plate, which helps to conduct the heat of the energy storage battery body to the thermal conductive silicone through the base plate, thereby dissipating the heat through the box and optimizing the heat dissipation effect of the energy storage battery body.

[0024] Optionally, the heat sink is extruded.

[0025] By adopting the above technical solution, the extrusion molding process helps to adapt the length of the heat sink to the length of the energy storage battery body, so as to optimize the heat dissipation effect.

[0026] Optionally, the heat sink is made of aluminum alloy.

[0027] By adopting the above technical solutions, aluminum alloys have good heat dissipation performance, enabling rapid heat transfer and facilitating the optimization of heat dissipation for the energy storage battery body. Furthermore, aluminum alloys are lightweight and high-strength, which helps reduce weight. At the same time, aluminum alloys have strong corrosion resistance, which helps ensure stable heat dissipation performance.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. The enclosure's housing is used to hold the energy storage battery and contain the coolant, allowing the battery to be submerged in the coolant and ensuring its safety during use. Since the coolant remains stagnant within the housing, a heat dissipation mechanism is required. This mechanism connects to the outside of the battery via a heat dissipation component, which mates with the inside of the enclosure. The heat dissipation component acts as a heat transfer medium, transferring heat generated by the battery to the enclosure through the heat dissipation component in contact with the battery. This conduction method ensures sufficient heat dissipation. Because the coolant is non-circulating, the need for an external cooling circulation system is reduced, saving space and reducing coolant consumption, thus lowering operating costs. Furthermore, it reduces the risk of cross-contamination between batteries in different enclosures due to coolant circulation, improving reliability.

[0030] 2. The heat sink is attached to the energy storage battery body. Through contact heat transfer, the heat of the energy storage battery body can be conducted to the heat sink, and then the heat sink can transfer the heat to the casing, thereby achieving heat dissipation of the energy storage battery body.

[0031] 3. The toothed structure helps to increase the heat dissipation area, thereby optimizing the heat dissipation effect of the heat sink on the energy storage battery body. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a cyclic submerged energy storage pack in related technologies.

[0033] Figure 2 This is a schematic diagram of the heat dissipation structure of a non-cyclic immersion energy storage pack in an embodiment of this application, containing coolant.

[0034] Figure 3 This is a schematic diagram of the heat dissipation structure of a non-cyclic immersion energy storage pack according to an embodiment of this application.

[0035] Figure 4 yes Figure 3 Cross-sectional view at point AA.

[0036] Figure 5This is a schematic diagram of the heat dissipation mechanism and the energy storage battery body in an embodiment of this application.

[0037] Figure 6 This is an exploded view of the heat dissipation mechanism and the energy storage battery body in an embodiment of this application.

[0038] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0039] Figure 8 This is a side view of the heat sink according to an embodiment of this application.

[0040] Figure 9 This is a schematic diagram of the box body and the heat-conducting beam in an embodiment of this application.

[0041] Explanation of reference numerals in the attached figures:

[0042] 10. Coolant circulation system and equipment; 20. Energy storage pack; 100. Energy storage battery body; 1. Housing; 11. Receiving cavity; 12. Coolant; 13. Protruding structure; 14. Thermally conductive silicone; 2. Heat dissipation mechanism; 21. Heat dissipation component; 211. Heat sink; 212. Toothed structure; 22. Thermally conductive beam; 3. Insulating film; 4. Support mechanism; 41. Buffer; 42. End plate; 43. Base plate. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1 -Appendix Figure 9 This application will be further described in detail below. In this embodiment, unless otherwise specified, "connection", "linking", and "fixing" are interpreted broadly, including fixed connection, detachable connection, connection to form an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through an intermediary, internal connection, and interaction between two components, etc., and can be understood according to the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, in the description of this embodiment, terms such as "above," "below," "left," and "right," etc., are based on the orientation or positional relationships shown in the accompanying drawings and are used only for ease of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise stated, directional terms such as "inner" and "outer" used in this application refer to the outline of the corresponding component itself.

[0045] like Figure 2 , Figure 3and Figure 4 As shown in the figure, this application discloses a heat dissipation structure (hereinafter referred to as "heat dissipation structure") for a non-cyclic immersion energy storage pack. The heat dissipation structure includes a housing 1 and a heat dissipation mechanism 2 for dissipating heat from the energy storage battery body 100.

[0046] The housing 1 has a receiving cavity 11 for housing the energy storage battery body 100. The receiving cavity 11 contains coolant 12, which submerges the energy storage battery body 100 and remains stationary. The receiving cavity 11 of the housing 1 houses the energy storage battery body 100 and contains the coolant 12, ensuring the energy storage battery body 100 is submerged in the coolant 12 and guaranteeing its safety during use.

[0047] like Figure 2 , Figure 3 and Figure 4 As shown, the coolant 12 is stationary in the containment cavity 11, thus requiring a heat dissipation mechanism 2 to meet the heat dissipation needs of the energy storage battery body 100. The heat dissipation mechanism 2 includes a heat dissipation component 21. The inner side of the heat dissipation component 21 is connected to the outer side of the energy storage battery body 100, and the outer side of the heat dissipation component 21 cooperates with the inner side of the housing 1, allowing the heat from the heat dissipation component 21 to be transferred to the housing 1. Heat dissipation is achieved through heat exchange between the housing 1 and the outside air. By connecting the heat dissipation component 21 to the outer side of the energy storage battery body 100 and cooperating with the inner side of the housing 1, the heat dissipation component 21 acts as a heat transfer medium, transferring the heat generated by the energy storage battery body 100 outwards to the housing 1 through the heat dissipation component 21 in contact with the energy storage battery body 100. This heat dissipation is achieved through conduction, ensuring sufficient heat dissipation and allowing the relatively enclosed housing 1 to meet heat dissipation requirements even when the coolant 12 is not circulating.

[0048] Because the coolant 12 is non-circulating, the need for an external cooling circulation system is reduced, which helps to reduce space occupation and the amount of coolant 12 used. The coolant 12 in the housing 11 only needs to submerge the energy storage battery body 100, eliminating the need for excess coolant 12 for circulation, thus reducing operating and maintenance costs. Simultaneously, it reduces the risk of cascading effects between energy storage battery bodies 100 in different housings 1 through coolant 12 circulation, improving reliability and reducing the problem of all coolant 12 in the circulation system being contaminated and wasted when one energy storage battery body 100 experiences thermal runaway due to coolant 12 circulation. It is understood that the energy storage battery body 100 in this embodiment can be a battery cell, and may also include the electrical components necessary for the battery cells to form a battery module; the housing 1 can be a sheet metal shell; and the coolant 12 can be a fluorinated liquid. The heat dissipation structure also includes an insulating film 3, which is disposed on the outer periphery of the energy storage battery body 100. The insulating film 3 can ensure the safety of the energy storage battery body 100 and reduce the risk of electron loss and overheating of the energy storage battery body 100.

[0049] like Figure 5 , Figure 6 and Figure 7 As shown, optionally, the heat dissipation assembly 21 includes two heat sinks 211, which are respectively disposed on a first side and a second side of the energy storage battery body 100 opposite to each other. The inner side of the heat sink 211 is attached to the energy storage battery body 100, and the heat sink 211 is used to conduct heat from the energy storage battery body 100 to the housing 1. By contacting the energy storage battery body 100, the heat sink 211 can conduct heat from the energy storage battery body 100 to the heat sink 211, and then transfer the heat to the housing 1, thus achieving heat dissipation from the energy storage battery body 100. The heat sink 211 is extruded. This extrusion molding process helps to adapt the length of the heat sink 211 to the length of the energy storage battery body 100, thereby optimizing the heat dissipation effect. The extrusion length can be selected according to actual needs, so that the same extrusion die can meet the capacity requirements of various products, improving applicability and reducing manufacturing costs. The heat sink 211 is made of aluminum alloy, which has good heat dissipation performance and can quickly transfer heat, making it easier to optimize the heat dissipation effect on the energy storage battery body 100. In addition, aluminum alloy is lightweight and high-strength, which helps to reduce weight. At the same time, aluminum alloy has strong corrosion resistance, which helps to ensure stable heat dissipation performance.

[0050] like Figure 7 and Figure 8 As shown, optionally, the heat sink 211 has a toothed structure 212 on the side away from the housing 1. The toothed structure 212 helps to increase the heat dissipation area, thereby optimizing the heat dissipation effect of the heat sink 211 on the energy storage battery body 100 and improving the heat dissipation rate.

[0051] like Figure 2 , Figure 4 and Figure 9 As shown, optionally, the heat dissipation mechanism 2 includes a heat-conducting beam 22. The heat-conducting beam 22 is disposed inside the housing 1, dividing the receiving cavity 11 into a first cavity and a second cavity. Both the first and second cavities are used to house the energy storage battery body 100. The side of the heat-conducting beam 22 engages with the toothed structure 212 on the first side of the energy storage battery body 100, allowing heat from the toothed structure 212 to be transferred to the heat-conducting beam 22. One energy storage battery body 100 is placed in each of the first and second cavities. The two sides of the heat-conducting beam 22 can engage with the heat sinks 211 on the sides of the two energy storage battery bodies 100, thereby simultaneously achieving heat conduction and dissipation for both energy storage battery bodies 100, improving the heat transfer efficiency between them and enhancing the heat dissipation effect. A notch is provided at the upper end of one side of the heat-conducting beam 22 to allow for the placement of copper busbars. The heat-conducting beam 22 is hollow inside, reducing weight and cost, and allowing for the filling of coolant 12 to optimize the cooling effect.

[0052] like Figure 6 , Figure 8 and Figure 9 As shown, optionally, the inner side of the housing 1 is provided with a protruding structure 13, which cooperates with the toothed structure 212 on the second side of the energy storage battery body 100. The protruding structure 13 helps to increase the side area of ​​the housing 1, thereby increasing the heat dissipation area, facilitating the dissipation of heat transferred from the heat dissipation mechanism 2, and optimizing the heat dissipation effect; furthermore, the protruding structure 13 can help cooperate with the toothed structure 212 to improve the heat transfer efficiency.

[0053] like Figure 4 and Figure 6 As shown, optionally, the heat dissipation structure also includes a support mechanism 4, which includes two buffer members 41 and two end plates 42. The two end plates 42 are respectively located at opposite ends of the energy storage battery body 100, and the buffer members 41 are sandwiched between the end plates 42 and the energy storage battery body 100. The buffer members 41 are flexible. The end plates 42 are used to protect and support both ends of the energy storage battery body 100. The buffer members 41, located between the end plates 42 and the energy storage battery body 100, provide assembly tolerances for the fit between the energy storage battery body 100 and the housing 1, and buffer the expansion force between the energy storage battery body 100 and the housing 1 in the later stages, thereby improving assembly reliability and reducing the risk of damage caused by overheating of the energy storage battery body 100.

[0054] Optionally, the support mechanism 4 includes a base plate 43, which is connected to the bottom of the energy storage battery body 100. The bottom of the housing 1 is filled with thermally conductive silicone 14, and the base plate 43 is used to mate with the bottom of the housing 1. The bottom of the energy storage battery body 100 mates with the bottom of the housing 1 through the base plate 43, which helps to conduct the heat of the energy storage battery body 100 to the thermally conductive silicone 14 through the base plate 43, thereby dissipating the heat through the housing 1 and optimizing the heat dissipation effect of the energy storage battery body 100. The end plate 42 is made of cast aluminum, which can provide good thermal conductivity; the buffer 41 can be PU foam; the base plate 43 is made of aluminum alloy stamped sheet, which can provide sufficient strength and thermal conductivity.

[0055] like Figure 2 , Figure 4 and Figure 6 As shown, by fitting the housing 1 and the heat-conducting beam 22 to the outer periphery of the energy storage battery body 100, the distance between the energy storage battery body 100 and the housing 1 and the heat-conducting beam 22 is minimized while ensuring assembly allowance, thus achieving the minimum gap. This shortens the heat dissipation path and optimizes the heat dissipation effect. When the energy storage battery body 100 is working, the distance between the housing 1 and the heat-conducting beam 22 and the heat sink 211 is minimized, allowing the base plate 43 to fully contact the bottom of the housing 1, optimizing the heat conduction effect and maximizing heat dissipation. This ensures both the safe operation of the energy storage battery body 100 in the coolant 12 and high heat dissipation efficiency in a confined environment. Furthermore, the small distance between the housing 1 and the heat-conducting beam 22 and the energy storage battery body 100 helps to reduce the size of the receiving cavity 11, thereby reducing the amount of coolant 12 used and lowering costs. It is understandable that the heat dissipation structure also includes necessary structures for connection, support, drive, positioning, limiting, sealing and control, so that the heat dissipation structure can operate normally; the shape, size, material and number of each part of the heat dissipation structure can be determined as needed, as long as the corresponding functions can be achieved.

[0056] The implementation principle of the heat dissipation structure of a non-cyclic immersion energy storage pack according to an embodiment of this application is as follows: The receiving cavity 11 of the housing 1 holds the energy storage battery body 100 and contains coolant 12, so that the energy storage battery body 100 can be immersed in the coolant 12, ensuring the safety of the energy storage battery body 100 during use; the coolant 12 is stationary in the receiving cavity 11 and is connected to the outside of the energy storage battery body 100 through a heat dissipation component 21, and the outside of the heat dissipation component 21 cooperates with the inside of the housing 1, so that the heat dissipation component 21 can act as a medium for heat transfer, thus dissipating the energy storage battery body. The heat generated by the battery 100 is transferred to the housing 1 through the heat dissipation component 21 that is in contact with the battery body 100, thereby dissipating heat from the battery body 100 by means of heat conduction, ensuring sufficient heat dissipation effect. Since the coolant 12 adopts a non-circulating form, the need for setting up an external cooling circulation system is reduced, which helps to reduce space occupation and also reduces the amount of coolant 12 used, thus helping to reduce operating costs. At the same time, it can also reduce the risk of cascading effects caused by the circulation of coolant 12 between battery bodies 100 in different housings 1, thereby improving reliability.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat dissipation structure for a non-cyclic immersion energy storage pack, characterized in that, For heat dissipation of the energy storage battery body (100), the heat dissipation structure of the non-cyclic immersion energy storage pack includes: The housing (1) has a receiving cavity (11) inside, which is used to place the energy storage battery body (100). The receiving cavity (11) is filled with coolant (12) and is used to immerse the energy storage battery body (100). The coolant (12) in the receiving cavity (11) is stationary. The heat dissipation mechanism (2) includes a heat dissipation component (21). The inner side of the heat dissipation component (21) is used to connect to the outer side of the energy storage battery body (100). The outer side of the heat dissipation component (21) cooperates with the inner side of the housing (1) so that the heat of the heat dissipation component (21) can be transferred to the housing (1).

2. The heat dissipation structure of the non-cyclic immersion energy storage pack according to claim 1, characterized in that, The heat dissipation assembly (21) includes two heat sinks (211), which are respectively disposed on the first and second sides of the energy storage battery body (100) facing each other. The inner side of the heat sink (211) is used to fit the energy storage battery body (100), and the heat sink (211) is used to conduct the heat of the energy storage battery body (100) to the housing (1).

3. The heat dissipation structure of the non-cyclic immersion energy storage pack according to claim 2, characterized in that, The heat sink (211) has a toothed structure (212) on the side away from the housing (1).

4. The heat dissipation structure of the non-cyclic immersion energy storage pack according to claim 3, characterized in that, The heat dissipation mechanism (2) includes a heat-conducting beam (22), which is disposed inside the housing (1). The heat-conducting beam (22) divides the receiving cavity (11) into a first cavity and a second cavity. Both the first cavity and the second cavity are used to place the energy storage battery body (100). The side of the heat-conducting beam (22) cooperates with the toothed structure (212) so that the heat of the toothed structure (212) can be transferred to the heat-conducting beam (22).

5. The heat dissipation structure of the non-cyclic immersion energy storage pack according to claim 3, characterized in that, The inner side of the housing (1) is provided with a protruding structure (13), which cooperates with the toothed structure (212).

6. The heat dissipation structure of the non-cyclic immersion energy storage pack according to claim 1, characterized in that, It also includes an insulating film (3) which is disposed on the outer periphery of the energy storage battery body (100).

7. The heat dissipation structure of the non-cyclic immersion energy storage pack according to claim 1, characterized in that, It also includes a support mechanism (4), which includes two buffers (41) and two end plates (42). The two end plates (42) are respectively located at opposite ends of the energy storage battery body (100). The buffers (41) are sandwiched between the end plates (42) and the energy storage battery body (100). The buffers (41) are flexible.

8. The heat dissipation structure of the non-cyclic immersion energy storage pack according to claim 7, characterized in that, The support mechanism (4) includes a base plate (43) for connecting the bottom of the energy storage battery body (100). The bottom of the housing (1) is filled with thermally conductive silicone (14), and the base plate (43) is used to cooperate with the bottom of the housing (1).

9. The heat dissipation structure of the non-cyclic immersion energy storage pack according to claim 2, characterized in that, The heat sink (211) is extruded.

10. The heat dissipation structure of the non-cyclic immersion energy storage pack according to claim 2, characterized in that, The heat sink (211) is made of aluminum alloy.

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