Liquid-cooled energy storage container

Abstract

The utility model provides a liquid-cooled energy storage container, including: an energy storage cabinet, including a placement compartment group, the placement compartment group includes a plurality of placement compartments arranged along a first direction; a plurality of battery modules, the plurality of battery modules are arranged in the placement compartment along the height direction of the energy storage cabinet, and the height direction of the energy storage cabinet is perpendicular to the first direction; two input pipe groups, each input pipe group includes a first pipe, a second pipe and a third pipe connected in sequence, the first pipe runs through a plurality of placement compartments, and the third pipe is connected to the water inlet of the battery module; two output pipe groups, each output pipe group includes a fourth pipe, a fifth pipe and a sixth pipe connected in sequence, the fourth pipe runs through a plurality of placement compartments, and the sixth pipe is connected to the water outlet of the battery module; a liquid cooling device, respectively connected to the first pipe and the fourth pipe. The liquid-cooled energy storage container of the utility model can realize hierarchical control of pipelines, which is conducive to realizing precise temperature control and reducing energy consumption. Two input pipe groups and two output pipe groups are conducive to improving heat exchange efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and more specifically, to a liquid-cooled energy storage container. Background Art

[0002] In the related art, the battery modules in the energy storage container generate a lot of heat when working, which can be dissipated by liquid cooling. Liquid cooling has the characteristics of large heat carrying capacity, low flow resistance, and high heat exchange efficiency, and is suitable for applications with fast charging and discharging and large changes in ambient temperature.

[0003] Existing energy storage containers monotonously adopt a primary liquid cooling pipeline layout. For each storage compartment and the energy storage components (battery modules) inside, the flow rate cannot be accurately controlled according to the amount of heat generated, and the heat dissipation efficiency is difficult to meet the requirements. Utility Model Content

[0004] The utility model provides a new technical solution for a liquid-cooled energy storage container, which can at least solve the problems in the prior art that the liquid cooling structure is difficult to control the flow rate and the heat dissipation efficiency is difficult to meet the requirements.

[0005] The utility model provides a liquid-cooled energy storage container, comprising: an energy storage cabinet, the energy storage cabinet comprising a placement compartment group, the placement compartment group comprising a plurality of placement compartments arranged along a first direction; a plurality of battery modules, the plurality of battery modules being arranged in the placement compartments along a height direction of the energy storage cabinet, the height direction of the energy storage cabinet being perpendicular to the first direction; two input pipe groups, each of the input pipe groups comprising a first pipe, a second pipe and a third pipe connected in sequence, the first pipe passing through a plurality of the placement compartments, the third pipe being connected to a water inlet of the battery module; two output pipe groups, each of the output pipe groups comprising a fourth pipe, a fifth pipe and a sixth pipe connected in sequence, the fourth pipe passing through a plurality of the placement compartments, the sixth pipe being connected to a water outlet of the battery module; and a liquid cooling device, the liquid cooling device being connected to the first pipe and the fourth pipe respectively.

[0006] Optionally, the first tube and the fourth tube extend respectively along the first direction, the second tube and the fifth tube extend respectively along the height direction of the energy storage cabinet, each of the first tubes is connected to a plurality of the second tubes arranged along the first direction, each of the second tubes is connected to a plurality of the third tubes arranged along the height direction of the energy storage cabinet, each of the fourth tubes is connected to a plurality of the fifth tubes arranged along the first direction, and each of the fifth tubes is connected to a plurality of the sixth tubes arranged along the height direction of the energy storage cabinet.

[0007] Optionally, in the height direction of the energy storage cabinet, the first tube is lower than the fourth tube.

[0008] Optionally, the first tube is located at the top of the placement chamber group, and the fourth tube is located at the bottom of the placement chamber group.

[0009] Optionally, in the second direction, one of the two input tube groups and one of the two output tube groups are located at one end of the placement compartment group, and the other of the two input tube groups and the other of the two output tube groups are located at the other end of the placement compartment group, and the second direction is respectively perpendicular to the first direction and the height direction of the energy storage cabinet.

[0010] Optionally, in the second direction, the second tube is located on a side of the corresponding first tube away from the battery module, the fifth tube is located on a side of the corresponding fourth tube away from the battery module, a first connecting tube is provided between the ends of the first tube and the second tube, and a second connecting tube is provided between the ends of the fourth tube and the fifth tube.

[0011] Optionally, a speed regulating valve is provided on the first connecting pipe.

[0012] Optionally, an exhaust valve is provided on the first connecting pipe.

[0013] Optionally, each of the second tubes is connected to a plurality of the third tubes arranged along the height direction of the energy storage cabinet, and the diameters of the plurality of third tubes are the same or different; each of the fifth tubes is connected to a plurality of the sixth tubes arranged along the height direction of the energy storage cabinet, and the diameters of the plurality of the sixth tubes are the same or different.

[0014] Optionally, each of the first tubes is provided with a water pump.

[0015] Optionally, the energy storage cabinet further includes: an electrical compartment, the electrical compartment being located at one end of the placement compartment group in the first direction, the liquid cooling device being located in the electrical compartment, the liquid cooling device including a fan, and the fan being used to cool the cooling medium in the fourth tube.

[0016] According to the liquid-cooled energy storage container of the utility model, for multiple battery modules arranged in a rectangular array, the first and fourth tubes in the input tube group and the output tube group can be used to form a primary pipeline, which is used to connect the liquid cooling device and serve as the main pipeline in the cooling circulation loop of the liquid-cooled energy storage container to transport the cooling medium. The second and fifth tubes can form a secondary pipeline, and the battery modules in multiple placement compartments are connected in parallel to the cooling circulation loop. The third and sixth tubes can form a tertiary pipeline, and the multiple battery modules in each placement compartment are connected in parallel to the cooling circulation loop to achieve hierarchical control of the pipeline, which is conducive to achieving precise temperature control and reducing the overall energy consumption of the liquid-cooled energy storage container. The provision of two input tube groups and two output tube groups can enable the liquid-cooled energy storage container to have two primary pipelines for transporting low-temperature cooling medium and two primary pipelines for transporting high-temperature cooling medium, which is conducive to increasing the flow in the pipeline and improving the heat exchange efficiency.

[0017] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0019] Figure 1 It is a three-dimensional diagram of a liquid-cooled energy storage container according to an embodiment of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of a partial structure of a liquid-cooled energy storage container according to an embodiment of the utility model;

[0021] Figure 3 yes Figure 2 The main view;

[0022] Figure 4 It is a stereoscopic diagram of an input pipe group and an output pipe group in a liquid-cooled energy storage container according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of a battery module in a liquid-cooled energy storage container connected to an input pipe group and an output pipe group respectively according to an embodiment of the present utility model;

[0024] Figure 6 It is a partial enlarged view of an input pipe group according to an embodiment of the utility model.

[0025] Reference numerals

[0026] Liquid-cooled energy storage container 100;

[0027] Energy storage cabinet 10; top plate 111; storage compartment 12; storage compartment 121;

[0028] Electrical compartment 13;

[0029] Battery module 20; water inlet 21; water outlet 22;

[0030] Liquid cooling device 50; fan 51;

[0031] Input pipe group 61; first pipe 611; second pipe 612; third pipe 613; first connecting pipe 614; output pipe group 62; fourth pipe 621; fifth pipe 622; sixth pipe 623; second connecting pipe 624; speed regulating valve 63; exhaust valve 64. DETAILED DESCRIPTION

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0035] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0036] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0037] The liquid-cooled energy storage container 100 according to an embodiment of the present utility model is described in detail below with reference to the accompanying drawings.

[0038] like Figures 1 to 6 As shown, the liquid-cooled energy storage container 100 according to an embodiment of the present utility model includes: an energy storage cabinet 10, a plurality of battery modules 20, two input pipe groups 61, two output pipe groups 62 and a liquid cooling device 50.

[0039] Specifically, the energy storage cabinet 10 includes a placement compartment 12, and the placement compartment 12 includes a plurality of placement compartments 121 arranged along a first direction. A plurality of battery modules 20 are arranged in the placement compartment 121 along the height direction of the energy storage cabinet 10, and the height direction of the energy storage cabinet 10 is perpendicular to the first direction. Each input pipe group 61 includes a first pipe 611, a second pipe 612, and a third pipe 613 that are connected in sequence, the first pipe 611 runs through a plurality of placement compartments 121, and the third pipe 613 is connected to the water inlet 21 of the battery module 20. Each output pipe group 62 includes a fourth pipe 621, a fifth pipe 622, and a sixth pipe 623 that are connected in sequence, the fourth pipe 621 runs through a plurality of placement compartments 121, and the sixth pipe 623 is connected to the water outlet 22 of the battery module 20. The liquid cooling device 50 is connected to the first pipe 611 and the fourth pipe 621, respectively.

[0040] In other words, the liquid-cooled energy storage container 100 according to the embodiment of the present utility model is mainly composed of an energy storage cabinet 10 , a plurality of battery modules 20 , two input pipe groups 61 , two output pipe groups 62 and a liquid cooling device 50 .

[0041] The energy storage cabinet 10 is a large-scale device usually placed vertically. For the convenience of explanation, the first direction and the second direction can be defined as mutually perpendicular horizontal directions, and the third direction is a vertical direction. In other words, the third direction is equivalent to the height direction of the energy storage cabinet 10.

[0042] The storage compartment 12 can be composed of a plurality of storage compartments 12. Figure 1 As shown, the arrangement direction of the multiple placement compartments 121 is a first direction. Therefore, in the first direction, at least one side surface of each placement compartment 121 will face other placement compartments 121, and in a second direction perpendicular to the first direction, two side surfaces of each placement compartment 121 will not be blocked by other placement compartments 121.

[0043] One or more of the plurality of storage compartments 121 may respectively accommodate a plurality of battery modules 20, and the battery modules 20 in the storage compartments 121 may be arranged along the height direction of the energy storage cabinet 10. In other words, the plurality of battery modules 20 in the energy storage cabinet 10 may be arranged in a rectangular array.

[0044] Two input tube groups 61 and two output tube groups 62 can be arranged in the energy storage cabinet 10, wherein each input tube group 61 can be mainly composed of a first tube 611, a second tube 612 and a third tube 613, and each output tube group 62 can be mainly composed of a fourth tube 621, a fifth tube 622 and a sixth tube 623.

[0045] The first tube 611 and the fourth tube 621 may be respectively connected to the liquid cooling device 50 , and the liquid cooling device 50 may transport cooling medium to the first tube 611 and receive cooling medium in the fourth tube 621 .

[0046] The second tube 612 may be connected between the first tube 611 and the third tube 613, and the output end of the third tube 613 may be connected to the water inlet 21 of the battery module 20. The fifth tube 622 may be connected between the fourth tube 621 and the sixth tube 623, and the input end of the sixth tube 623 may be connected to the water outlet 22 of the battery module 20.

[0047] The cooling channel in the liquid cooling device 50 , the first tube 611 , the second tube 612 , the third tube 613 , the liquid cooling channel in the battery module 20 , the sixth tube 623 , the fifth tube 622 and the fourth tube 621 constitute a cooling circulation loop.

[0048] Specifically, the liquid cooling device 50 can cool the cooling medium, and the low-temperature cooling medium can flow from the liquid cooling device 50 through the first tube 611, the second tube 612 and the third tube 613 in sequence and flow into the battery module 20. A liquid cooling channel can be provided in the battery module 20, and the cooling medium can absorb the heat emitted by the battery module 20 and heat up when flowing through the liquid cooling channel. Then, the high-temperature cooling medium can flow out from the water outlet 22 of the battery module 20, and flow back to the liquid cooling device 50 by passing through the sixth tube 623, the fifth tube 622 and the fourth tube 621 in sequence.

[0049] The first tube 611 and the fourth tube 621 can respectively penetrate multiple storage compartments 121, and each storage compartment 121 can be provided with a second tube 612 and a fifth tube 622 to connect multiple storage compartments 121 in parallel into the above-mentioned cooling circulation loop, and the third tube 613 and the sixth tube 623 can be provided to connect multiple battery modules 20 in the storage compartment 121 in parallel into the cooling circulation loop. The first tube 611 and the fourth tube 621 directly connected to the liquid cooling device 50 can be defined as primary pipelines, the second tube 612 and the fifth tube 622 can be defined as secondary pipelines, and the third tube 613 and the sixth tube 623 can be defined as tertiary pipelines. The flow rate of the primary pipeline can be greater than the flow rate of the secondary pipeline, and the flow rate of the secondary pipeline can be greater than the flow rate of the tertiary pipeline.

[0050] Therefore, according to the liquid-cooled energy storage container 100 of the embodiment of the utility model, for multiple battery modules 20 arranged in a rectangular array, the first tube 611 and the fourth tube 621 in the input tube group 61 and the output tube group 62 can be used to form a primary pipeline, which is used to connect the liquid cooling device 50 and serve as the main pipeline in the cooling circulation loop of the liquid-cooled energy storage container 100 to transport the cooling medium. The second tube 612 and the fifth tube 622 can constitute a secondary pipeline, and the battery modules 20 in the multiple placement compartments 121 are connected in parallel to the cooling circulation loop. The third tube 613 and the sixth tube 623 can constitute a tertiary pipeline, and the multiple battery modules 20 in each placement compartment 121 are connected in parallel to the cooling circulation loop, so as to realize hierarchical control of the pipeline, which is conducive to realizing precise temperature control and reducing the overall energy consumption of the liquid-cooled energy storage container 100. By providing two input pipe groups 61 and two output pipe groups 62, the liquid-cooled energy storage container 100 can have two primary pipelines for conveying low-temperature cooling medium and two primary pipelines for conveying high-temperature cooling medium, which is beneficial to increase the flow in the pipeline and improve the heat exchange efficiency.

[0051] According to one embodiment of the utility model, the first tube 611 and the fourth tube 621 extend respectively in the first direction, the second tube 612 and the fifth tube 622 extend respectively in the height direction of the energy storage cabinet 10, each first tube 611 is connected to a plurality of second tubes 612 arranged in the first direction, each second tube 612 is connected to a plurality of third tubes 613 arranged in the height direction of the energy storage cabinet 10, each fourth tube 621 is connected to a plurality of fifth tubes 622 arranged in the first direction, and each fifth tube 622 is connected to a plurality of sixth tubes 623 arranged in the height direction of the energy storage cabinet 10.

[0052] Specifically, when the number of the placement compartments 121 is N, each input tube group 61 may include a first tube 611, N second tubes 612, and N*M third tubes 613. In each input tube group 61, the first tube 611 may penetrate the N placement compartments 121 along the first direction, the N second tubes 612 may be arranged along the first direction and communicated with the first tube 611 respectively, the N second tubes 612 may be arranged in the N placement compartments 121 one by one, and each second tube 612 may be provided with M third tubes 613, and the M third tubes 613 may be arranged along the third direction to communicate with the M battery modules 20 arranged along the third direction.

[0053] Each output tube group 62 may include a fourth tube 621, N fifth tubes 622, and N*M sixth tubes 623. In each output tube group 62, the fourth tube 621 may penetrate the N placement compartments 121 along the fourth direction, the N fifth tubes 622 may be arranged along the fourth direction and communicated with the fourth tube 621 respectively, the N fifth tubes 622 may be arranged in the N placement compartments 121 in a one-to-one correspondence, and each fifth tube 622 may be provided with M sixth tubes 623, and the M sixth tubes 623 may be arranged along the sixth direction to communicate with the M battery modules 20 arranged along the sixth direction.

[0054] After the low-temperature cooling medium flows out of the cooling device, it can flow in the first tube 611 along the first direction, then flow into the second tube 612 along the third direction, and then flow into each battery module 20 through the third tube 613. The high-temperature cooling medium flowing out of the battery module 20 can first flow into the fifth tube 622 through the sixth tube 623, then flow into the fourth tube 621 along the third direction in the fifth tube 622, and then flow in the fourth tube 621 along the first direction, and finally flow back to the cooling device.

[0055] In this embodiment, the arrangement of the primary pipeline, the secondary pipeline, and the tertiary pipeline in the input pipe group 61 and the output pipe group 62 is simpler, better adapted to the structure of the energy storage cabinet 10, effectively forming multi-level control of the pipeline, shortening the cooling path of each battery module 20, and improving the cooling efficiency.

[0056] According to some other embodiments of the present invention, in the height direction of the energy storage cabinet 10 , the first tube 611 is lower than the fourth tube 621 .

[0057] Among them, the cooling medium flowing in the first tube 611 is a low-temperature cooling medium, and the cooling medium flowing in the fourth tube 621 is a high-temperature cooling medium. Therefore, the low-temperature cooling medium flows upward from the bottom of the energy storage cabinet 10 into the battery module 20, and the high-temperature cooling medium flowing out of the battery module 20 converges upward into the fourth tube 621 to avoid heat accumulation in the lower part of the energy storage cabinet 10.

[0058] Since the energy storage cabinet 10 is usually placed vertically on the installation surface, the heat dissipation effect of the upper part of the energy storage cabinet 10 is better than that of the lower part. Therefore, setting the first tube 611 lower than the fourth tube 621 can not only stagger the low-temperature pipeline and the high-temperature pipeline to avoid mutual influence, but also help to improve the heat dissipation effect of the liquid-cooled energy storage container 100.

[0059] In some specific embodiments of the present invention, the first tube 611 is located at the top of the storage compartment 12, and the fourth tube 621 is located at the bottom of the storage compartment 12. Thus, the heat of the entire energy storage cabinet 10 can be accumulated at the top, and the top plate 111 on the top of the energy storage cabinet 10 is used for heat dissipation, which is beneficial to improving the heat dissipation effect.

[0060] Optionally, the first tube 611 can be located below the battery module 20, and the fourth tube 621 can be located above the battery module 20. The first tube 611 and the fourth tube 621 are installed by utilizing the space below and above the battery module 20, which makes the structural arrangement more reasonable and helps save space.

[0061] According to some optional embodiments of the present invention, in the second direction, one of the two input tube groups 61 and one of the two output tube groups 62 are located at one end of the placement compartment 12, and the other of the two input tube groups 61 and the other of the two output tube groups 62 are located at the other end of the placement compartment 12, and the second direction is perpendicular to the first direction and the height direction of the energy storage cabinet 10, respectively.

[0062] Specifically, for the convenience of description, the two input tube groups 61 may be defined as a first tube group and a second tube group, and the two output tube groups 62 may be defined as a third tube group and a fourth tube group.

[0063] In the second direction, the first tube group and the third tube group are provided at one end of the placement cabin 12, and the second tube group and the fourth tube group are provided at the other end of the placement cabin 12. The liquid cooling device 50, the first tube group, the battery module 20 and the third tube group can be connected to form a first cooling circulation loop, and the liquid cooling device 50, the second tube group, the battery module 20 and the fourth tube group can be connected to form a second cooling circulation loop.

[0064] In this embodiment, the two input pipe groups 61 and the two output pipe groups 62 are respectively arranged at the two ends of the storage compartment 12 in the second direction, which can facilitate the installation and arrangement of the pipelines in the energy storage cabinet 10 and ensure that the two input pipe groups 61 and the two output pipe groups 62 will not affect each other.

[0065] In some optional embodiments, two groups of battery modules 20 may be provided in each placement compartment 121, the battery modules 20 in each group of battery modules 20 are arranged along the third direction, the two groups of battery modules 20 are arranged along the second direction, the first tube group and the third tube group are connected to one group of battery modules 20 in each placement compartment 121, and the second tube group and the fourth tube group are connected to another group of battery modules 20 in each placement compartment 121.

[0066] In some specific embodiments, a corresponding connecting pipeline may be further provided between the first tube 611 and the liquid cooling device 50, and a corresponding connecting pipeline may be further provided between the fourth tube 621 and the liquid cooling device 50. For example, the inlet and outlet of the liquid cooling device 50 may be located at the bottom of the liquid cooling device 50, and the first tube 611 separated from the outlet of the liquid cooling device 50 in the second direction may be connected to the outlet of the liquid cooling device 50 through the corresponding connecting pipeline, and the fourth tube 621 separated from the inlet of the liquid cooling device 50 in the second direction and / or the third direction may be connected to the inlet of the liquid cooling device 50 through the corresponding connecting pipeline.

[0067] According to some other embodiments of the utility model, in the second direction, the second tube 612 is located on the side of the corresponding first tube 611 away from the battery module 20, the fifth tube 622 is located on the side of the corresponding fourth tube 621 away from the battery module 20, a first connecting tube 614 is provided between the ends of the first tube 611 and the second tube 612, and a second connecting tube 624 is provided between the ends of the fourth tube 621 and the fifth tube 622.

[0068] In other words, in the second direction, the second tube 612 is farther away from the battery module 20 than the corresponding first tube 611, and the fifth tube 622 is farther away from the battery module 20 than the corresponding fourth tube 621. Since the first connecting tube 614 connects the second tube 612 and the first tube 611, and the second connecting tube 624 connects the fourth tube 621 and the fifth tube 622, at least a portion of the first connecting tube 614 can protrude outward from the first tube 611 along the second direction, and at least a portion of the second connecting tube 624 can protrude outward from the fourth tube 621 along the second direction.

[0069] For example, the first connecting tube 614 and the second connecting tube 624 can be L-shaped, respectively, and the first connecting tube 614 and the second connecting tube 624 can respectively include a first tube 611 section and a second tube 612 section that are connected to each other, the first tube 611 section can extend along the second direction, the second tube 612 section can extend along the first direction, one end of the first tube 611 section is connected to the first tube 611 or the fourth tube 621, the other end of the first tube 611 section is connected to one end of the second tube 612 section, and the other end of the second tube 612 section is connected to the second tube 612 or the fifth tube 622.

[0070] The bottom end of the second tube 612 may be connected to the first connection tube 614 , and the top end of the fifth tube 622 may be connected to the second connection tube 624 .

[0071] In this embodiment, the first connecting tube 614 is provided to connect the first tube 611 and the second tube 612 spaced apart in the second direction, so that the arrangement of the input tube group 61 is more compact, and the second connecting tube 624 is provided to connect the fourth tube 621 and the fifth tube 622 spaced apart in the second direction, so that the arrangement of the output tube group 62 is more compact.

[0072] In some specific embodiments of the present invention, a speed regulating valve 63 is provided on the first connecting pipe 614, which can adjust the flow rate of the cooling medium in the corresponding second pipe 612, and then the flow rate of the cooling medium in multiple battery modules 20 in each placement compartment 121 is overall regulated, with high regulation efficiency.

[0073] Optionally, the speed regulating valve 63 may include but is not limited to a manual valve and an electric valve.

[0074] According to some optional embodiments of the present invention, an exhaust valve 64 is provided on the first connecting pipe 614. When there is air in the cooling circulation loop, the exhaust valve 64 can exhaust the air in the loop when the liquid cooling device 50 starts to operate to ensure cooling efficiency.

[0075] In some optional embodiments, when it is necessary to monitor the flow rate, the exhaust valve 64 can be removed and a flow meter can be installed in its place to monitor the flow rate.

[0076] According to some other embodiments of the present invention, each second tube 612 is connected to a plurality of third tubes 613 arranged along the height direction of the energy storage cabinet 10, and the diameters of the plurality of third tubes 613 are the same or different, and each fifth tube 622 is connected to a plurality of sixth tubes 623 arranged along the height direction of the energy storage cabinet 10, and the diameters of the plurality of sixth tubes 623 are the same or different.

[0077] In other words, the diameters of the plurality of third tubes 613 connected to each second tube 612 may be the same or different. When the diameters of the plurality of third tubes 613 are different, the corresponding flow rates are also different. The greater the flow rate in the third tube 613, the higher the heat dissipation efficiency of the battery module 20. The diameter of the sixth tube 623 may be adapted to the corresponding third tube 613.

[0078] In this embodiment, the diameters of the third tubes 613 and the sixth tubes 623 can be designed according to the heat dissipation requirements to achieve different heat dissipation purposes. Compared with the use of separate regulating valves in traditional technologies, it can not only meet the actual heat dissipation requirements of battery modules 20 placed in different positions, but also achieve the purpose of cooling and increasing efficiency.

[0079] For example, among the multiple third tubes 613, the diameter of the third tube 613 near the top of the energy storage cabinet 10 may be larger than the diameter of the third tube 613 near the bottom of the energy storage cabinet 10. Since heat accumulates at the top of the energy storage cabinet 10, the battery module 20 near the top of the energy storage cabinet 10 has a higher heat dissipation requirement. A third tube 613 with a larger diameter may be used to increase the flow rate of the cooling medium, thereby improving the heat dissipation efficiency, avoiding excessive temperature of the battery module 20 at the top of the energy storage cabinet 10, and facilitating improving the temperature uniformity of the liquid-cooled energy storage container 100.

[0080] In some specific embodiments of the present invention, a water pump is provided on each first tube 611 , thereby increasing the flow rate of the cooling medium in each first tube 611 , which is beneficial to improving the heat exchange efficiency of the liquid-cooled energy storage container 100 .

[0081] According to some optional embodiments of the utility model, the energy storage cabinet 10 also includes an electrical compartment 13, which is located at one end of the placement compartment 12 in the first direction. The liquid cooling device 50 is located in the electrical compartment 13, and the liquid cooling device 50 includes a fan 51, which is used to cool the cooling medium in the fourth tube 621.

[0082] Specifically, in the first direction, the storage compartment 12 has two ends, and one end of the storage compartment 12 may be provided with an electrical compartment 13. The liquid cooling device 50 may be provided in the electrical compartment 13, and the first pipe 611 and the fourth pipe 621 may be connected to the liquid cooling device 50 through connecting pipes, respectively, and the main body of the connecting pipes may be located in the electrical compartment 13. The electrical compartment 1313 may also be provided with a variety of electrical structures and mechanical mechanisms,

[0083] In this embodiment, the liquid cooling device 50 is disposed in the electrical compartment 13 , and the electrical compartment 13 and the placement compartment 121 can be used to separate the liquid cooling device 50 from the battery module 20 to avoid mutual influence between the liquid cooling device 50 and the battery module 20 .

[0084] In summary, the liquid-cooled energy storage container 100 of the utility model can realize hierarchical control of pipelines, which is conducive to achieving precise temperature control and reducing the overall energy consumption of the liquid-cooled energy storage container 100, so that the liquid-cooled energy storage container 100 has two primary pipelines for transporting low-temperature cooling medium and two primary pipelines for transporting high-temperature cooling medium, which is conducive to increasing the flow rate in the pipeline and improving the heat exchange efficiency.

[0085] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A liquid-cooled energy storage container, characterized in that: include: An energy storage cabinet, the energy storage cabinet comprising a storage compartment group, the storage compartment group comprising a plurality of storage compartments arranged along a first direction; A plurality of battery modules, wherein the plurality of battery modules are arranged in the storage compartment along a height direction of the energy storage cabinet, and the height direction of the energy storage cabinet is perpendicular to the first direction; Two input pipe groups, each of which includes a first pipe, a second pipe and a third pipe that are connected in sequence, the first pipe runs through a plurality of the placement compartments, and the third pipe is connected to a water inlet of the battery module; Two output tube groups, each of which includes a fourth tube, a fifth tube and a sixth tube that are connected in sequence, the fourth tube runs through a plurality of the placement compartments, and the sixth tube is connected to the water outlet of the battery module; A liquid cooling device is connected to the first pipe and the fourth pipe respectively.

2. The liquid-cooled energy storage container according to claim 1, characterized in that: The first tube and the fourth tube extend respectively along the first direction, and the second tube and the fifth tube extend respectively along the height direction of the energy storage cabinet. Each of the first tubes is connected to a plurality of the second tubes arranged along the first direction, and each of the second tubes is connected to a plurality of the third tubes arranged along the height direction of the energy storage cabinet. Each of the fourth tubes is communicated with a plurality of the fifth tubes arranged along the first direction, and each of the fifth tubes is communicated with a plurality of the sixth tubes arranged along the height direction of the energy storage cabinet.

3. The liquid-cooled energy storage container according to claim 1, characterized in that: In the height direction of the energy storage cabinet, the first tube is lower than the fourth tube.

4. The liquid-cooled energy storage container according to claim 3, characterized in that: The first tube is located at the top of the placement chamber group, and the fourth tube is located at the bottom of the placement chamber group.

5. The liquid-cooled energy storage container according to claim 1, characterized in that: In the second direction, one of the two input tube groups and one of the two output tube groups are located at one end of the placement compartment group, and the other of the two input tube groups and the other of the two output tube groups are located at the other end of the placement compartment group, and the second direction is respectively perpendicular to the first direction and the height direction of the energy storage cabinet.

6. The liquid-cooled energy storage container according to claim 5, characterized in that: In the second direction, the second tube is located on a side of the corresponding first tube away from the battery module, the fifth tube is located on a side of the corresponding fourth tube away from the battery module, a first connecting tube is provided between the ends of the first tube and the second tube, and a second connecting tube is provided between the ends of the fourth tube and the fifth tube.

7. The liquid-cooled energy storage container according to claim 6, characterized in that: The first connecting pipe is provided with a speed regulating valve.

8. The liquid-cooled energy storage container according to claim 6, characterized in that: The first connecting pipe is provided with an exhaust valve.

9. The liquid-cooled energy storage container according to claim 7, characterized in that: Each of the second tubes is connected to a plurality of the third tubes arranged along the height direction of the energy storage cabinet, and the diameters of the plurality of third tubes are the same or different. Each of the fifth tubes is connected to a plurality of the sixth tubes arranged along the height direction of the energy storage cabinet, and the diameters of the plurality of the sixth tubes are the same or different.

10. The liquid-cooled energy storage container according to claim 1, characterized in that: Each of the first pipes is provided with a water pump.

11. The liquid-cooled energy storage container according to claim 1, characterized in that: The energy storage cabinet also includes: An electrical compartment, the electrical compartment is located at one end of the placement compartment group in the first direction, the liquid cooling device is located in the electrical compartment, the liquid cooling device includes a fan, and the fan is used to cool the cooling medium in the fourth pipe.

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