Electronic component module, energy storage device and energy storage system

Abstract

An electronic component module, an energy storage device, and an energy storage system. The electronic component module comprises a housing and, arranged in the housing a first electronic component, an air-cooling structure and a liquid-cooling structure, the air-cooling structure and the liquid-cooling structure being adapted to cool the first electronic component.

Description

Electronic component module, energy storage device and energy storage system

[0001] Cross Reference to Related Applications

[0002] The present disclosure claims priority to the Chinese patent application No. 202421537978.7, filed on June 28, 2024, and entitled “Electronic component module, energy storage device and energy storage system”, the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the field of new energy technology, in particular, to an electronic component module, an energy storage device and an energy storage system. BACKGROUND

[0004] With the increasing demand for high-rate charging and discharging of energy storage devices, electronic components such as power conversion system (PCS) and battery management system (BMS) for controlling and managing the charging and discharging of battery modules will generate a large amount of heat during operation, which may cause damage to the electronic components. Therefore, how to provide a suitable working temperature environment for the electronic components is the key to ensure the stable operation of the energy storage device. SUMMARY

[0005] To overcome the problems in the related art, the present disclosure provides an electronic component module, an energy storage device and an energy storage system.

[0006] According to a first aspect of an embodiment of the present disclosure, an electronic component module is provided, comprising:

[0007] a housing;

[0008] a first electronic component disposed in the housing;

[0009] an air cooling structure disposed in the housing; and

[0010] a liquid cooling structure disposed in the housing;

[0011] wherein the air cooling structure and the liquid cooling structure are adapted to cool the first electronic component.

[0012] According to an embodiment of the present disclosure, the air cooling structure is configured such that air at a higher temperature becomes air at a lower temperature by exchanging heat with the liquid cooling structure, and then cools the first electronic component.

[0013] According to an embodiment of the present disclosure, the electronic component module further comprises a second electronic component disposed in the housing, and the air cooling structure and the liquid cooling structure are adapted to cool the first electronic component and the second electronic component.

[0014] According to an embodiment of the present disclosure, the first electronic component is an energy storage converter, and the second electronic component includes at least one of a battery management system, a power distribution unit, and a busbar unit.

[0015] According to an embodiment of the present disclosure, the first electronic component is an energy storage converter, and the second electronic component is a battery management system.

[0016] According to an embodiment of the present disclosure, the air cooling structure includes a fan.

[0017] According to an embodiment of the present disclosure, the electronic component module further includes a second electronic component, the housing is provided with a first chamber for accommodating the first electronic component and a second chamber for accommodating the second electronic component, the first chamber and the second chamber are communicated, and the first chamber and the second chamber are configured to enable air to circulate and flow in the first chamber and the second chamber under the driving of the fan.

[0018] According to an embodiment of the present disclosure, the housing is provided with a partition plate, the partition plate divides the housing into the first chamber and the second chamber, the partition plate has a gap with an inner wall of the housing, and the gap is formed as an air port for air to circulate and flow in the first chamber and the second chamber.

[0019] According to an embodiment of the present disclosure, the first electronic component is an energy storage converter, the second electronic component is a battery management system, the air cooling structure is arranged in the second chamber, and air outlet of the air cooling structure faces the second electronic component.

[0020] According to an embodiment of the present disclosure, the liquid cooling structure includes a liquid cooling pipeline, and the liquid cooling pipeline is arranged in the second chamber.

[0021] According to an embodiment of the present disclosure, the liquid cooling pipeline is arranged around the second electronic component.

[0022] According to an embodiment of the present disclosure, the liquid cooling pipeline includes a first cooling pipe segment arranged between the air cooling structure and the second electronic component, and a second cooling pipe segment arranged on each side of the second electronic component.

[0023] According to an embodiment of the present disclosure, the liquid cooling pipeline is externally provided with heat exchange fins.

[0024] According to an embodiment of the present disclosure, the housing is sealed.

[0025] According to a second aspect of the embodiments of the present disclosure, there is provided an energy storage structure, comprising a cabinet, a battery module arranged in the cabinet, and an electronic component module according to any one of the embodiments arranged in the cabinet.

[0026] According to an embodiment of the present disclosure, the electronic component module is arranged on top of the battery module.

[0027] According to an embodiment of the present disclosure, the energy storage device further comprises a battery module cooling pipeline connected with the battery module, and the liquid cooling structure of the electronic component module is connected with the battery module cooling pipeline, so that the cooling liquid can enter the electronic component module through the battery module cooling pipeline.

[0028] According to an embodiment of the present disclosure, the battery module is a submerged liquid cooling module.

[0029] According to an embodiment of the present disclosure, the battery module comprises a plurality of battery modules arranged in a stack, and each two adjacent battery modules are connected through the battery module cooling pipeline, wherein the uppermost battery module is connected with the liquid cooling structure of the electronic component module through the battery module cooling pipeline.

[0030] According to an embodiment of the present disclosure, the energy storage device further comprises a cooling liquid input pipeline and a cooling liquid output pipeline respectively extending in the up-down direction, wherein the cooling liquid input pipeline is provided with an input interface for docking with each battery module, and the cooling liquid output pipeline is provided with an output interface for docking with each battery module.

[0031] According to a third aspect of the embodiments of the present disclosure, there is provided an energy storage system, comprising a liquid cooling air conditioner and an energy storage device according to any one of the embodiments, wherein the liquid cooling air conditioner is connected with the battery module.

[0032] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects: the electronic component module provided by the present disclosure comprises a shell, a wind cooling structure and a liquid cooling structure arranged in the shell for cooling a first electronic component, wherein the wind cooling structure can use the flow of gas to take away the heat on the surface of the first electronic component, and the liquid cooling structure can use the low-temperature cooling liquid to exchange heat with the first electronic component to take away the temperature on the surface of the first electronic component, that is, the double cooling system formed by the wind cooling and the liquid cooling is used to cool the first electronic component, and this way can provide higher cooling efficiency than a single cooling structure.

[0033] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and serve to explain the principles of the present disclosure, but are not intended to limit the present disclosure.

[0035] FIG. 1 is a schematic diagram of an electronic component module according to an exemplary embodiment of the present disclosure.

[0036] FIG. 2 is a schematic diagram of an energy storage device according to an exemplary embodiment of the present disclosure.

[0037] FIG. 3 is a schematic diagram of an internal structure of the energy storage device of FIG. 2.

[0038] FIG. 4 is a schematic diagram of an energy storage system according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] The exemplary embodiments will be described in detail below with reference to the accompanying drawings. In the following description, the same drawings refer to the same elements or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present disclosure. Rather, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0040] The embodiments described in some embodiments of the present disclosure do not represent all the embodiments consistent with the present disclosure. Rather, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0041] As shown in FIGS. 1 to 3, the electronic component module 100 according to an exemplary embodiment of the present disclosure can be applied to an energy storage device 1000 to control and manage charging and discharging of a battery module 200. Specifically, the electronic component module 100 includes a housing 1, a first electronic component 5 disposed in the housing 1, and a forced air cooling structure 3 and a liquid cooling structure 4 disposed in the housing 1, the forced air cooling structure 3 and the liquid cooling structure 4 being adapted to cool the first electronic component 5.

[0042] The first electronic component 5 can be configured as a power conversion system (PCS), a battery management system (BMS), a power distribution unit, or a busbar unit, etc. according to a function to be implemented by the electronic component module 100. Unlike a configuration in which the first electronic component 5 is directly exposed to air, the present disclosure configures the first electronic component 5 in the housing 1 to insulate the inside of the housing 1 from the outside thermal environment, i.e., to reduce adverse thermal interference of heat generated by the battery module 200 on the first electronic component 5, and to protect the first electronic component 5 in case of a failure such as a fire of the battery module 200.

[0043] The air cooling structure 3 can take away the heat on the surface of the first electronic component 5 by the flow of gas. In addition, as described in some embodiments later, the gas used for air cooling can be low-temperature gas, which can exchange heat with the first electronic component 5 while taking away the temperature on the surface of the first electronic component 5, and further reduce the temperature on the surface of the first electronic component 5. The liquid cooling structure 4 can exchange heat with the first electronic component 5 by the low-temperature cooling liquid, and take away the temperature on the surface of the first electronic component 5. For example, a cooling pipeline containing the cooling liquid can be in contact with the first electronic component 5, or the first electronic component 5 can be immersed in the cooling liquid. Different from some related technologies that only use a single cooling method, for example, only have a liquid cooling structure or only have an air cooling structure, the present disclosure simultaneously provides the air cooling structure 3 and the liquid cooling structure 4 in the shell 1, that is, simultaneously uses the double cooling system formed by the air cooling and the liquid cooling, which can provide higher cooling efficiency than the single cooling structure.

[0044] The technical scheme provided by the embodiments of the present disclosure can include the following beneficial effects: The electronic component module 100 provided by the present disclosure respectively provides the air cooling structure 3 and the liquid cooling structure 4 in the shell 1 for cooling the first electronic component 5, wherein the air cooling structure 3 can take away the heat on the surface of the first electronic component 5 by the flow of gas, and the liquid cooling structure 4 can exchange heat with the first electronic component 5 by the low-temperature cooling liquid, and take away the temperature on the surface of the first electronic component 5, that is, the double cooling system formed by the air cooling and the liquid cooling is used to cool the first electronic component 5, which can provide higher cooling efficiency than the single cooling structure.

[0045] In some embodiments, the air cooling structure 3 can be configured such that the air with a higher temperature exchanges heat with the liquid cooling structure 4 to become air with a lower temperature, and then cools the first electronic component 5. The general principle of the air cooling structure 3 is to take away the heat on the surface of the first electronic component 5 by the flow of air. The air cooling structure 3 provided by the present disclosure further makes the air with a higher temperature exchange heat with the liquid cooling structure 4 to form air with a lower temperature before flowing through the first electronic component 5, and then makes the air with a lower temperature flow through the surface of the first electronic component 5. That is, different from the related technology that makes the air with a higher temperature exchange heat with the surface of the first electronic component 5 directly, the air in the shell 1 of the present disclosure can become lower in temperature before exchanging heat with the surface of the first electronic component 5, so that more heat can be taken away when the air contacts the surface of the first electronic component 5, which further improves the cooling efficiency. It should be noted that the air with a higher temperature and the air with a lower temperature are relative, that is, the air with a higher temperature should be lower in temperature than the surface of the first electronic component 5 under high-rate operation.

[0046] The electronic component module 100 of the present disclosure can also include a second electronic component 2 disposed within the housing 1, and the air cooling structure 3 and the liquid cooling structure 4 are adapted to cool the first electronic component 5 and the second electronic component 2. Optionally, the first electronic component 5 can be a power conversion system (PCS), and the second electronic component 2 can be at least one of a battery management system (BMS), a power distribution unit, or a busbar unit. Optionally, the first electronic component 5 can be a power conversion system, and the second electronic component 2 can be a battery management system. That is, the electronic component module 100 of the present disclosure integrates a power conversion system and a battery management system within one module. Such an electronic component integrated design allows the power conversion system and the battery management system to be close enough to be directly connected by a cable, avoiding the design of additional wiring.

[0047] As shown in FIG. 1, in some embodiments, the air cooling structure 3 can include a fan 31. The electronic component module can also include a second electronic component 2, and the housing 1 is provided with a first chamber 15 for accommodating the first electronic component 5 and a second chamber 14 for accommodating the second electronic component 2. By separating the housing 1 into the first chamber 15 and the second chamber 14, it is possible to avoid the failure of one of the electronic components to affect the other electronic component in the event of a fire. Among them, the first chamber 15 and the second chamber 14 are in communication and are configured to circulate air in the first chamber 15 and the second chamber 14 under the drive of the fan 31, thereby sequentially cooling the electronic components in the two chambers, and then the air with increased temperature is exchanged with the liquid cooling structure 4 to become air with lower temperature.

[0048] As an embodiment that can achieve the circulation of air in the first chamber 15 and the second chamber 14, a partition plate 13 is provided in the housing 1, and the partition plate 13 separates the housing 1 into the first chamber 15 and the second chamber 14. Among them, the partition plate 13 has a gap with the inner wall of the housing 1, and the gap forms an air port 16 for the circulation of air in the first chamber 15 and the second chamber 14. For example, FIG. 1 shows the partition plate 13 extending in the up-down direction of the drawing, and having a gap with the housing 1 at both ends in the up-down direction. The partition plate 13 can be integrally injection molded with the housing 1, for example. In other embodiments, the partition plate 13 can extend to the inner wall of the housing 1, at which time an air port 16 for air flow can be selected to be formed on the partition plate 13. As shown by the arrows, air enters the first chamber 15 on the left from the second chamber 14 on the right through the bottom air port 16, and then returns to the second chamber 14 on the right from the top air port 16.

[0049] With reference back to FIG. 1, in some embodiments, the first electronic component 5 is an energy storage converter, and the second electronic component 2 is a battery management system, which is arranged in the second chamber 14, and the energy storage converter is arranged in the first chamber 15. The fan 31 is arranged in the second chamber 14, and the air outlet of the fan 31, for example, the air cooling structure 3, is directed towards the second electronic component 2. That is, the fan 31 is arranged on the side of the battery management system, which is mainly considering that the ideal temperature of the battery management system is lower than that of the energy storage converter, and the requirement for heat dissipation is higher.

[0050] As shown by the arrows in FIG. 1, the air blown by the fan 31 first exchanges heat with the liquid cooling structure 4 to become lower-temperature air, and then exchanges heat with the battery management system and carries away the heat on the surface of the battery management system. Then, the part of the air is blown out from the bottom air outlet 16 to the first chamber 15 on the left, and exchanges heat with the energy storage converter in the second chamber 14 and carries away the heat on the surface of the energy storage converter. At this time, the air that has exchanged heat with the electronic components twice becomes higher-temperature air, which is sucked into the second chamber 14 on the right through the top air outlet 16, and circulates the above process under the action of the fan 31.

[0051] In some embodiments, as shown in FIG. 1, the liquid cooling structure 4 includes a liquid cooling pipeline 41 arranged in the second chamber 14. Optionally, the liquid cooling pipeline 41 can be configured to be arranged around the second electronic component 2 to further improve the heat dissipation efficiency. Further, the liquid cooling pipeline 41 can include a first cooling pipe section 411 arranged between the fan 31 and the second electronic component 2, and second cooling pipe sections 412 arranged on both sides of the second electronic component 2, respectively. The higher-temperature air blown out from the fan 31 first passes through the first cooling pipe section 411 to form lower-temperature air, and then exchanges heat with the battery management system and carries away the heat on the surface of the battery management system, while the air on both sides flows along the second cooling pipe sections 412, so that the heat exchange with the second cooling pipe sections 412 can be continuously exchanged and the battery management system can be cooled at the same time. In addition, the outside of the liquid cooling pipeline 41 can be provided with heat exchange fins 6, for example, the outside of the first cooling pipe section 411 and / or the second cooling pipe sections 412 can also be provided with heat exchange fins 6, for example, the heat exchange fins 6 are wrapped outside the first cooling pipe section 411 and / or the second cooling pipe sections 412, which can provide a larger heat exchange area, and is conducive to improving the efficiency of heat exchange between the higher-temperature air and the liquid cooling structure 4.

[0052] The housing 1 of the electronic component module 100 provided by the present disclosure can be configured as a sealed structure, which is beneficial to reduce the loss of cold air inside the housing 1 and better maintain the temperature inside the housing 1. Since the air in the housing 1 can circulate, i.e., the higher-temperature air can become lower-temperature air by exchanging heat with the liquid cooling structure 4, the temperature of the air will not continue to rise even in a closed structure, and the lower temperature inside the housing 1 can also be maintained. The housing 1 can include a housing body 11 and a cover 12, thereby facilitating replacement of electronic components inside the housing 1. Of course, in other embodiments, openings can be provided on the walls of the housing 1, and external air can be introduced into the housing 1 under the action of the fan 31, and the air after heat exchange can be discharged from the housing 1.

[0053] According to a second aspect of the embodiments of the present disclosure, as shown in FIG. 2, a power storage device 1000 is also provided, which includes a cabinet 300, a battery module 200 arranged in the cabinet 300, and an electronic component module 100 according to any one of the above embodiments arranged in the cabinet 300. The electronic component module 100 is the electronic component module according to any one of the above embodiments and has all the beneficial effects thereof, which will not be repeated here. Optionally, the electronic component module 100 is arranged on top of the battery module 200, which is beneficial to the expansion of the battery module 200, i.e., only the battery module 200 needs to be stacked upward, without the need to adjust the structure of the electronic component module 100 itself, and the versatility is higher.

[0054] In the related art, it is generally necessary to introduce cooling liquid into the battery module 200 to dissipate heat for the battery module 200. As shown in FIG. 2, the energy storage device 1000 provided by the present disclosure further comprises a battery module cooling pipeline 410 connected with the battery module 200, and the liquid cooling structure 4, such as the liquid cooling pipeline 41, of the electronic component module 100 is connected with the battery module cooling pipeline 410, so that the cooling liquid can enter the electronic component module 100 through the battery module cooling pipeline 410. In this embodiment, the cooling liquid first dissipates heat for the battery module 200, and then the cooling liquid after coming out of the battery module 200 continues to enter the electronic component module 100, realizing the sharing of the cooling liquid. Generally, the temperature of the cooling liquid after coming out of the battery module 200 is about 25℃, which is much lower than the ideal working temperature of the energy storage converter and the battery management system. The working temperature of the energy storage converter is about 70℃, and the working temperature of the battery management system is about 50℃, so even if the secondary cooling source after coming out of the battery module 200 is used, it will not affect the effective heat dissipation of the electronic component module 100. In this way, the electronic component module 100 can be cooled by the cooling liquid used to dissipate heat for the battery module 200, without the need to additionally increase the liquid cooling air conditioner 2000 and other equipment for the electronic component 100, and since the cooling liquid for dissipating heat for the battery module 200 can continuously exchange heat with the liquid cooling air conditioner 2000, low-temperature cooling liquid can be provided at all times, so that low-temperature cooling liquid can be provided for the electronic component module 100 at all times, and the air inside the shell 1 can always obtain a lower temperature during circulation. Alternatively, the battery module 200 can be a liquid immersion module, which can provide higher cooling efficiency for the battery module 200.

[0055] The battery module 200 can comprise a plurality of battery modules stacked up and down, and two adjacent battery modules 200 are connected by the battery module cooling pipeline 410, that is, the cooling liquid can flow between two adjacent battery modules 200, wherein the uppermost battery module 200 is connected with the liquid cooling structure in the electronic component module 100 through the battery module cooling pipeline 410, that is, the cooling liquid flowing out of the uppermost battery module 200 is introduced into the electronic component module 100, which makes the structure of the energy storage device 1000 simple and convenient to install. Of course, the cooling liquid flowing out of each battery module 200 can be introduced into the electronic component module 100, which is not described herein.

[0056] Further, the energy storage device 1000 can further include a cooling liquid input pipe 420 and a cooling liquid output pipe 430 extending along the up-down direction respectively, wherein the cooling liquid input pipe 420 is provided with an input interface 421 for interfacing with each battery module 200, and the cooling liquid output pipe 430 is provided with an output interface 431 for interfacing with each battery module 200. The cooling liquid input pipe 420 is used to input the cooling liquid with a lower temperature into the battery module 200 and the electronic component module 100, and the cooling liquid output pipe 430 is used to output the cooling liquid with a higher temperature after heat exchange from the battery module 200 and the electronic component module 100 and return to the liquid cooling air conditioner. The cooling liquid in the pipes can be distributed to each battery module 200 and electronic component module 100 through the input interface 421 and the output interface 431.

[0057] According to a third aspect of the embodiments of the present disclosure, as shown in FIG. 4, there is also provided an energy storage system, which includes a liquid cooling air conditioner 2000 and the energy storage device according to any one of the above. The liquid cooling air conditioner 2000 is connected with the battery module 200, and the liquid cooling air conditioner 2000 and the battery module 200 can be integrated in a mounting frame 3000 of the energy storage system. The liquid cooling air conditioner 2000 is similar to the conventional air conditioner in structure and principle, except that the liquid cooling air conditioner 2000 outputs cooling liquid. The liquid cooling air conditioner 2000 is connected with the battery module 200, for example, the liquid cooling air conditioner 2000 can be connected with the battery module 200 through the cooling liquid input pipe 420 and the cooling liquid output pipe 430. The energy storage device 1000 can be arranged at intervals.

[0058] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0059] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0060] In addition, any combination of various different embodiments of the present disclosure can also be made, as long as it does not deviate from the idea of the present disclosure, and it should also be considered as disclosed in the present disclosure.

Claims

1. An electronic component module, characterized in that, The electronic component module (100) includes: Shell (1); The first electronic component (5) is disposed inside the housing (1); Air-cooled structure (3), said air-cooled structure (3) is disposed inside the housing (1); and A liquid cooling structure (4) is disposed inside the housing (1); The air-cooled structure (3) and the liquid-cooled structure (4) are adapted to cool the first electronic component (5).

2. The electronic component module according to claim 1, characterized in that, The air-cooled structure (3) is configured such that the air at a higher temperature becomes air at a lower temperature after exchanging heat with the liquid-cooled structure (4), thereby cooling the first electronic component (5).

3. The electronic component module according to claim 1 or 2, characterized in that, The electronic component module also includes a second electronic component (2) disposed within the housing (1), and the air-cooling structure (3) and the liquid-cooling structure (4) are adapted to cool the first electronic component (5) and the second electronic component (2).

4. The electronic component module according to claim 3, characterized in that, The first electronic component (5) is an energy storage converter, and the second electronic component (2) includes at least one of a battery management system, a power distribution unit, and a combiner unit.

5. The electronic component module according to claim 4, characterized in that, The first electronic component (5) is an energy storage converter, and the second electronic component (2) is a battery management system.

6. The electronic component module according to any one of claims 1 to 5, characterized in that, The air-cooled structure (3) includes a fan (31).

7. The electronic component module according to claim 6, characterized in that, The electronic component module also includes a second electronic component (2). The housing (1) is provided with a first chamber (15) for accommodating the first electronic component (5) and a second chamber (14) for accommodating the second electronic component (2). The first chamber (15) and the second chamber (14) are connected and configured such that air can circulate within the first chamber (15) and the second chamber (14) under the drive of the fan (31).

8. The electronic component module according to claim 7, characterized in that, A partition (13) is provided inside the housing (1), which divides the housing (1) into a first chamber (15) and a second chamber (14). There is a gap between the partition (13) and the inner wall of the housing (1), which forms an air vent (16) for air to circulate in the first chamber (15) and the second chamber (14).

9. The electronic component module according to claim 7 or 8, characterized in that, The first electronic component (5) is an energy storage converter, the second electronic component (2) is a battery management system, the air-cooling structure (3) is located in the second chamber (14), and the air outlet of the air-cooling structure (3) is directed toward the second electronic component (2).

10. The electronic component module according to claim 9, characterized in that, The liquid cooling structure (4) includes a liquid cooling pipeline (41), which is disposed in the second chamber (14).

11. The electronic component module according to claim 10, characterized in that, The liquid cooling pipeline (41) is arranged around the second electronic component (2).

12. The electronic component module according to claim 11, characterized in that, The liquid cooling pipeline (41) includes a first cooling pipe section (411) disposed between the air-cooled structure (3) and the second electronic component (2) and a second cooling pipe section (412) disposed on both sides of the second electronic component (2).

13. The electronic component module according to any one of claims 10 to 12, characterized in that, The liquid cooling pipeline (41) is provided with heat exchange fins (6) on the outside.

14. The electronic component module according to any one of claims 1 to 13, characterized in that, The housing (1) is constructed as a sealed structure.

15. An energy storage device, characterized in that, It includes a cabinet (300), a battery module (200) disposed within the cabinet (300), and an electronic component module (100) disposed within the cabinet (300) according to any one of claims 1-14.

16. The energy storage device according to claim 15, characterized in that, The electronic component module (100) is located on top of the battery module (200).

17. The energy storage device according to claim 16, characterized in that, The energy storage device (1000) also includes a battery module cooling pipe (410) connected to the battery module (200). The liquid cooling structure (4) of the electronic component module (100) is connected to the battery module cooling pipe (410) so that the coolant can enter the electronic component module (100) through the battery module cooling pipe (410).

18. The energy storage device according to claim 17, characterized in that, The battery module (200) is an immersion liquid-cooled module.

19. The energy storage device according to claim 17 or 18, characterized in that, The battery module (200) includes multiple modules stacked vertically. Two adjacent battery modules (200) are connected by the battery module cooling pipe (410). The uppermost battery module (200) is connected to the liquid cooling structure (4) in the electronic component module (100) through the battery module cooling pipe (410).

20. The energy storage device according to claim 19, characterized in that, The energy storage device (1000) further includes a coolant inlet pipe (420) and a coolant outlet pipe (430) extending in the vertical direction, respectively. The coolant inlet pipe (420) is provided with an input interface (421) for docking with each of the battery modules (200), and the coolant outlet pipe (430) is provided with an output interface (431) for docking with each of the battery modules (200).

21. An energy storage system, characterized in that, The device includes a liquid-cooled air conditioner (2000) and an energy storage device according to any one of claims 15 to 20, wherein the liquid-cooled air conditioner (2000) is connected to the battery module (200).

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