Liquid cooling module and energy storage device

Abstract

The utility model provides a liquid cooling module and an energy storage device, the liquid cooling module comprises a plurality of liquid cooling assemblies which are sequentially arranged at intervals along the height direction of the liquid cooling module, the liquid cooling assemblies are internally provided with accommodating cavities, and the accommodating cavities are used for placing battery modules; the liquid inlets of the plurality of liquid cooling assemblies are communicated with one another, and the liquid outlets of the plurality of liquid cooling assemblies are communicated with one another, so that the cooling medium can flow among the plurality of liquid cooling assemblies, the cooling medium can be in contact with the battery module from multiple directions, and the cooling uniformity and the heat dissipation efficiency of the battery module are improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a liquid cooling module and energy storage device. Background Technology

[0002] As the capacity of batteries continues to increase, they generate a significant amount of heat during operation. If this heat cannot be dissipated in time, the internal temperature of the battery pack will continue to rise, which will not only affect the lifespan of the battery pack but may also lead to serious accidents such as explosions, posing a significant safety hazard.

[0003] Currently, liquid cooling systems are typically incorporated into battery packs to effectively control battery temperature, prevent overheating, and thus improve battery performance and lifespan. However, in related technologies, liquid cooling systems usually employ a single water pipe flowing through the battery pack. In practical applications, this single-pipe structure may suffer from uneven cooling, low efficiency, and poor reliability, making it difficult to meet the heat dissipation requirements of high-capacity battery packs. Utility Model Content

[0004] This utility model provides a liquid cooling module and energy storage device to solve or at least partially solve the shortcomings of the above-mentioned background technology.

[0005] In a first aspect, embodiments of the present invention provide a liquid cooling module, comprising:

[0006] Multiple liquid cooling components are arranged at intervals along the height direction of the liquid cooling module. Each liquid cooling component has a receiving cavity for placing the battery module.

[0007] The liquid inlets of the plurality of liquid cooling components are interconnected, and the liquid outlets of the plurality of liquid cooling components are interconnected.

[0008] In one embodiment, the liquid inlets and outlets of the plurality of liquid cooling components are located on the same side of the liquid cooling module.

[0009] In one embodiment, the liquid cooling module includes:

[0010] A first pipeline assembly is disposed at one end of the plurality of liquid cooling assemblies, and the first pipeline assembly is connected to the liquid inlet of the plurality of liquid cooling assemblies;

[0011] The second pipeline assembly is disposed at the other end of the plurality of liquid cooling assemblies, and the first pipeline assembly is connected to the liquid outlet of the plurality of liquid cooling assemblies.

[0012] In one embodiment, the inlets of the first piping assembly, the second piping assembly, the plurality of liquid cooling assemblies, and the plurality of liquid cooling assemblies are located on the same side of the liquid cooling module.

[0013] In one embodiment, the liquid cooling assembly includes two liquid cooling plates disposed opposite each other along the height direction of the liquid cooling module;

[0014] The first pipeline assembly includes a plurality of interconnected first connectors, one first connector is provided for one liquid cooling assembly, and in one first connector and its corresponding liquid cooling assembly, the first connector is connected to the liquid inlet of two adjacent liquid cooling plates.

[0015] The second piping assembly includes a plurality of interconnected second connectors, one second connector corresponding to one liquid cooling assembly, and in one liquid cooling assembly corresponding to one second connector, the second connector is connected to the liquid outlet of two adjacent liquid cooling plates.

[0016] In one embodiment, the first pipeline assembly includes a plurality of first regulating valves, one of the first regulating valves being disposed between two adjacent first connectors, and one end of the first regulating valve being connected to one of the first connectors, and the other end of the first regulating valve being connected to another first connector.

[0017] The second pipeline assembly includes a plurality of second regulating valves, one of which is disposed between two adjacent second connectors, and one end of the second regulating valve is connected to one of the second connectors, and the other end of the second regulating valve is connected to another second connector.

[0018] In one embodiment, the first piping assembly includes a liquid inlet connector, which is disposed on the side of the plurality of first connectors away from the liquid cooling assembly. The liquid inlet connector is connected to the first connector and serves as the inlet end of the cooling medium.

[0019] The second piping assembly further includes a liquid outlet connector, which is located on the side of the plurality of second connectors away from the liquid cooling assembly. The liquid outlet connector is connected to the second connector and serves as the outlet end of the cooling medium.

[0020] In one embodiment, the first pipeline assembly includes a plurality of first liquid inlet pipes and a plurality of second liquid inlet pipes that are interconnected. One first liquid inlet pipe, one second liquid inlet pipe and one liquid cooling assembly are respectively arranged. One end of one first liquid inlet pipe is connected to the liquid inlet of one liquid cooling plate, and one end of one second liquid inlet pipe is connected to the liquid inlet of another liquid cooling plate.

[0021] The second pipeline assembly includes a plurality of first liquid outlet pipes and a plurality of second liquid outlet pipes that are interconnected. One first liquid outlet pipe, one second liquid outlet pipe, and one liquid cooling assembly are respectively arranged. One end of one first liquid outlet pipe is connected to the liquid outlet of one liquid cooling plate, and one end of one second liquid outlet pipe is connected to the liquid outlet of another liquid cooling plate.

[0022] In one embodiment, the first piping assembly further includes a plurality of third connectors, each of the third connectors being connected to a first connector, a first inlet pipe, and a second inlet pipe;

[0023] The first piping assembly also includes a plurality of fourth connectors, each of which is connected to a second connector, a first outlet pipe, and a second outlet pipe.

[0024] In one embodiment, the liquid cooling assembly includes a first liquid cooling plate and a second liquid cooling plate disposed opposite to each other along the height direction of the liquid cooling module, and a housing connected between the first liquid cooling plate and the second liquid cooling plate, wherein the receiving cavity is formed between the first liquid cooling plate, the second liquid cooling plate and the housing, and the receiving cavity is used to place the battery module.

[0025] In one embodiment, the housing has a first opening and a second opening, the first opening being disposed near the first liquid cooling plate and the second opening being disposed near the second liquid cooling plate;

[0026] The first liquid cooling plate contacts the bottom of the battery module through the first opening, and the second liquid cooling plate contacts the top of the battery module through the second opening.

[0027] In one embodiment, the housing includes a first connecting portion, which is circumferentially disposed around the edge of the first opening, and the first connecting portion has a plurality of first mounting holes;

[0028] The first liquid cooling plate includes a base plate, a side plate, and a protrusion. The base plate is in contact with the bottom of the battery module. The side plate is circumferentially disposed around the edge of the base plate. The protrusion is circumferentially disposed around the edge of the side plate away from the base plate. The protrusion has a plurality of second mounting holes, and one second mounting hole corresponds to one first mounting hole.

[0029] The first connecting part is disposed on the protrusion, and the first connecting part and the protrusion are fixedly connected by a connector, and the connector passes through the first mounting hole and the second mounting hole.

[0030] In one embodiment, the second liquid cooling plate has a plurality of third mounting holes, which are arranged around the edge of the second liquid cooling plate;

[0031] The housing includes a second connecting portion, which is circumferentially disposed around the edge of the second opening. The second connecting portion is provided with a plurality of fourth mounting holes, and one fourth mounting hole corresponds to one third mounting hole.

[0032] The second liquid cooling plate and the second connecting part are fixedly connected by a connector, and the connector passes through the third mounting hole and the fourth mounting hole.

[0033] In one embodiment, the base plate has a plurality of first liquid cooling channels arranged in series, and the second liquid cooling plate has a plurality of second liquid cooling channels arranged in parallel.

[0034] Secondly, this utility model provides an energy storage device, including a battery rack, multiple battery modules, and a liquid cooling module as described in any of the above embodiments; wherein one of the battery modules is disposed between two adjacent liquid cooling plates.

[0035] The beneficial effects of this utility model embodiment:

[0036] This utility model provides a liquid cooling module and an energy storage device. The liquid cooling module includes a plurality of liquid cooling components arranged at intervals along the height direction of the liquid cooling module. Each liquid cooling component has a receiving cavity for placing a battery module. By connecting the liquid inlets of the plurality of liquid cooling components to each other and connecting the liquid outlets of the plurality of liquid cooling components to each other, the cooling medium can flow between the plurality of liquid cooling components, allowing the cooling medium to contact the battery module from multiple directions, thereby improving the cooling uniformity and heat dissipation efficiency of the battery module. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the description of the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the energy storage device provided in an embodiment of the present utility model;

[0039] Figure 2 This is a schematic diagram of the structure of the liquid cooling module provided in the embodiment of this utility model;

[0040] Figure 3 This is a schematic diagram of the structure of the liquid cooling assembly provided in an embodiment of the present invention;

[0041] Figure 4 An exploded view of the liquid cooling assembly provided in an embodiment of this utility model;

[0042] Figure 5 This is a schematic diagram of the assembly structure of the liquid cooling assembly and the first pipeline assembly provided in an embodiment of the present utility model;

[0043] Figure 6 This is a schematic diagram of the structure of the liquid inlet / outlet connector provided in the embodiment of this utility model;

[0044] Figure 7 This is a schematic diagram of the structure of the first regulating valve / second regulating valve provided in the embodiment of this utility model;

[0045] Figure 8 A cross-sectional schematic diagram of the first liquid cooling plate provided in an embodiment of this utility model;

[0046] Figure 9 This is a schematic diagram of the structure of the second liquid cooling plate provided in an embodiment of the present invention.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1-Energy storage device; 11-Battery rack; 111-Battery rack body; 112-Support plate; 1111-Support column; 1112-Crossbeam; 12-Battery module; 13-Liquid cooling module; 131-Liquid cooling assembly; 1310-Receiving cavity; 1311-Liquid cooling plate; 1311A-Liquid inlet; 1311B-Liquid outlet; 13111-First liquid cooling plate; 131111-Base plate; 131 112-Side plate; 131113-Protrusion; 1311131-Second mounting hole; 13112-Second liquid cooling plate; 131121-Third mounting hole; 1313-Housing shell; 13131-First opening; 13132-Second opening; 13133-First connecting part; 131331-First mounting hole; 13134-Second connecting part; 131341-Fourth mounting hole.

[0049] 1312-Liquid cooling channel; 13121-First liquid cooling channel; 13122-Second liquid cooling channel; 132-First piping assembly; 1321-First connector; 1322-Liquid inlet connector; 13221-First flow regulating valve; 1323-Third connector; 1324-First regulating valve; 1325-First liquid inlet pipe; 1326-Second liquid inlet pipe; 133-Second piping assembly; 1331-Second connector; 1332-Liquid outlet connector; 13321-Second flow regulating valve; 1333-Fourth connector; 1334-Second regulating valve; 1335-First liquid outlet pipe; 1336-Second liquid outlet pipe. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0051] Please combine Figure 1 , Figure 2 and Figure 3 ;in, Figure 1 This is a schematic diagram of the energy storage device provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the liquid cooling module provided in the embodiment of this utility model;

[0052] Figure 3 This is a schematic diagram of the structure of the liquid cooling assembly provided in an embodiment of the present invention; Figure 4 An exploded view of the liquid cooling assembly provided in an embodiment of this utility model; Figure 5 This is a schematic diagram of the assembly structure of the liquid cooling component and the first pipeline component provided in an embodiment of the present invention.

[0053] In one embodiment, the energy storage device 1 includes a battery rack 11, a plurality of battery modules 12 and a liquid cooling module 13. The battery rack 11 is used to place the battery modules 12. The battery rack 11 includes a battery rack body 111 and a plurality of support plates 112 disposed on the battery rack body 111. The plurality of support plates 112 are spaced apart along the height direction of the energy storage device 1.

[0054] The battery rack 11 also includes multiple support columns 1111 and multiple crossbeams 1112. The support columns 1111 extend along the height direction of the energy storage device 1 to provide a stable support structure for the entire battery rack 11. The multiple crossbeams 1112 are arranged around the side of a support plate 112 and are set between adjacent support columns 1111 to enhance the overall strength and stability of the battery rack 11.

[0055] The liquid cooling module 13 can be integrated into the battery rack 11 structure to ensure that the battery module 12 maintains good heat dissipation during operation, thereby improving the safety and reliability of the system. The liquid cooling module 13 includes multiple liquid cooling components 131, which are arranged at intervals along the height of the liquid cooling module 13. Each liquid cooling component 131 corresponds to one battery module 12. Each liquid cooling component 131 has a receiving cavity 1310 for placing the battery module 12. The liquid inlets 1311A and outlets 1311B of the multiple liquid cooling components 131 are interconnected, allowing the cooling medium to flow between the multiple liquid cooling components 131 and contact the battery module 12 from multiple directions, thus improving the cooling uniformity and heat dissipation efficiency of the battery module 12.

[0056] Furthermore, the liquid cooling assembly 131 includes two liquid cooling plates 1311 disposed opposite to each other along the height direction of the liquid cooling module 13, and a housing 1313 connected between the two liquid cooling plates 1311; in each liquid cooling assembly 131, the two oppositely disposed liquid cooling plates 1311 and the housing 1313 form a receiving cavity 1310, and the battery module 12 is disposed in the receiving cavity 1310; wherein, one liquid cooling plate 1311 contacts the top of the battery module 12, and the other liquid cooling plate 1311 contacts the bottom of the battery module 12, so that one battery module 12 is disposed between the two liquid cooling plates 1311, thereby improving the heat dissipation efficiency of the battery module 12.

[0057] Specifically, two adjacent support plates 112 enclose a storage area for the liquid cooling assembly 131, and each liquid cooling assembly 131 can be stably placed in the corresponding storage area; wherein, the liquid cooling plate 1311 located at the bottom of the battery module 12 contacts the corresponding support plate 112 and is supported and fixed by the support plate 112, thereby ensuring the structural stability of the battery module 12.

[0058] It should be noted that, Figure 2 and Figure 5 The housing is omitted in the diagrams, thus failing to directly demonstrate the interaction between the housing and the liquid cooling components and battery module; however, considering other illustrations ( Figure 3 and Figure 4 As can be seen from the description, the housing forms a receiving cavity through the connection structure of the first and second liquid cooling plates, and is provided with a first opening and a second opening. The receiving cavity is used to place the battery module. The first and second openings allow the liquid cooling plates to fit tightly against the bottom and top of the battery module, achieving a double-sided cooling effect; in addition, Figure 2The Z direction can be the height direction of the liquid cooling module. Figure 2 The X direction can be the length direction of the liquid cooling module. Figure 2 The Y direction can be the width direction of the liquid cooling module.

[0059] Specifically, the liquid cooling plate 1311 is provided with a liquid cooling channel 1312 to guide the cooling medium to flow along a preset path and improve the heat exchange effect. The cooling medium includes, but is not limited to, coolant. The liquid cooling channel 1312 may include a direct flow channel, a serpentine flow channel, or a distributed multi-channel flow channel to adapt to different heat dissipation requirements and improve the thermal management performance of the system. At the same time, the liquid cooling plate 1311 may be made of metal materials (such as aluminum alloy or stainless steel) or composite materials to ensure the thermal conductivity and structural strength of the liquid cooling plate 1311.

[0060] The liquid cooling plate 1311 includes an inlet 1311A and an outlet 1311B communicating with the liquid cooling channel 1312. The inlets 1311A of the multiple liquid cooling plates 1311 are interconnected, and the outlets 1311B of the multiple liquid cooling plates 1311 are interconnected, thereby enabling adjacent liquid cooling plates 1311 to communicate with each other. This allows the coolant to circulate among the multiple liquid cooling plates 1311, ensuring that the coolant can fully cover the top and bottom of the battery module 12. This allows the coolant to absorb and remove the heat generated by the battery module 12 during operation from multiple directions, improving cooling uniformity, optimizing heat dissipation efficiency, and effectively avoiding the problem of local overheating of the battery module 12. Furthermore, it can also avoid the problem of uneven heat dissipation caused by insufficient coolant flow or limited flow path of a single liquid cooling plate 1311.

[0061] Please continue to combine Figures 1 to 5 In one embodiment, the inlet 1311A and outlet 1311B of the plurality of liquid cooling components 131 are located on the same side of the liquid cooling module 13, so that the coolant can enter from one side of the liquid cooling module 13, flow through the plurality of liquid cooling components 131, and then be discharged from the same side of the liquid cooling module 13. This simplifies the coolant piping layout, reduces the number of connectors, reduces assembly complexity, and improves the ease of maintenance of the liquid cooling module 13.

[0062] Furthermore, the liquid cooling module 13 also includes a first pipeline assembly 132 and a second pipeline assembly 133. The first pipeline assembly 132 is disposed at one end of the plurality of liquid cooling components 131 and is connected to the liquid inlet 1311A of the plurality of liquid cooling components 131. The second pipeline assembly 133 is disposed at the other end of the plurality of liquid cooling components 131 and is connected to the liquid outlet 1311B of the plurality of liquid cooling components 131, thereby achieving efficient delivery of coolant, ensuring uniform distribution of coolant inside the plurality of liquid cooling components 131, and improving heat dissipation.

[0063] Specifically, the first pipeline assembly 132, the second pipeline assembly 133, the liquid inlet 1311A, and the liquid outlet 1311B are located on the same side of the energy storage device 1, making the installation, disassembly, and maintenance of the liquid cooling module 13 more convenient and improving maintainability and reliability.

[0064] It is understandable that the various liquid cooling plates 1311 in the energy storage device 1 may require different pipeline routes due to their different heights. If the first pipeline assembly 132, the second pipeline assembly 133, the liquid inlet 1311A, and the liquid outlet 1311B are distributed on different sides of the energy storage device 1, it will lead to complex pipeline crossing and routing problems.

[0065] In this embodiment, by arranging the first pipeline assembly 132, the second pipeline assembly 133, the liquid inlet 1311A, and the liquid outlet 1311B on the same side of the energy storage device 1, the pipelines do not need to be extended or arranged from multiple directions during installation. The pipeline design can be easily adjusted according to the position of each layer of cooling plates to adapt to different numbers of layers and cooling requirements, thereby improving the compatibility of the liquid cooling module 13 and reducing the space occupied by the pipelines in the liquid cooling module 13. This achieves a flexible pipeline layout in the energy storage device 1, solves the pipeline arrangement problem when the internal space of the energy storage device 1 is limited, and meets the heat dissipation requirements of the large-capacity energy storage device 1.

[0066] Please continue to combine Figures 1 to 5 In one embodiment, the first pipeline assembly 132 further includes a plurality of interconnected first connectors 1321, one of which is connected to the liquid inlet 1311A of two adjacent liquid cooling plates 1311, thereby optimizing the flow path of the coolant, reducing flow resistance, and enabling the coolant to be evenly distributed in the plurality of liquid cooling assemblies 131, thereby reducing flow resistance and improving the cooling efficiency of the liquid cooling module 13.

[0067] The second pipeline assembly 133 includes a plurality of interconnected second connectors 1331. One second connector 1331 is connected to the outlet 1311B of two adjacent liquid cooling plates 1311, thereby improving the efficiency of collecting and discharging coolant, enabling the coolant that has undergone heat exchange to quickly converge and be discharged, thereby improving the overall heat dissipation performance of the liquid cooling module 13, avoiding local overheating of the battery module 12, and improving the stability and safety of the energy storage device 1.

[0068] Furthermore, the first connector 1321 can be a T-connector. The plurality of first connectors 1321 are arranged sequentially along the height direction of the energy storage device 1, and the plurality of first connectors 1321 are interconnected to form a continuous coolant inflow channel, so that the coolant can flow evenly into the inlet 1311A of each liquid cooling plate 1311, thereby improving the cooling efficiency of the liquid cooling module 13 and ensuring that each battery module 12 can be adequately cooled. Each battery module 12 is provided with a liquid cooling plate 1311 at its top and bottom. By cooling the battery module 12 through the two liquid cooling plates 1311, the temperature difference between the top and bottom of the battery module 12 can be reduced, thereby improving the cycle life of the battery module 12.

[0069] Meanwhile, the second connector 1331 can be a three-way connector. The multiple second connectors 1331 are arranged sequentially along the height direction of the energy storage device 1 and are interconnected to form a continuous coolant recovery channel. After the coolant undergoes heat exchange through the liquid cooling plate 1311, it can converge at the outlet 1311B of the liquid cooling plate 1311 and finally be discharged from the liquid cooling module 13 through the second pipeline assembly 133. This avoids fluid retention and bubble generation caused by poor drainage, and further improves the reliability and heat dissipation efficiency of the liquid cooling module 13.

[0070] It should be noted that, Figure 1 The Z direction in the equation can be the height direction of the energy storage device. Figure 1 The X direction can be the length direction of the energy storage device. Figure 1 The Y direction can be the width direction of the energy storage device.

[0071] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ;in, Figure 6 This is a schematic diagram of the liquid inlet / outlet connector provided in an embodiment of the present invention.

[0072] In one embodiment, the first piping assembly 132 further includes a liquid inlet connector 1322, which is disposed on the side of the plurality of first connectors 1321 away from the liquid cooling assembly 131. The liquid inlet connector 1322 is connected to the first connector 1321 on the side of the plurality of first connectors 1321 away from the liquid cooling assembly 131. The liquid inlet connector 1322 is the inlet end of the coolant. The coolant can be guided into the liquid cooling module 13 through the liquid inlet connector 1322, thereby ensuring that the coolant is distributed to the plurality of liquid cooling plates 1311 and improving the heat dissipation performance of the liquid cooling module 13.

[0073] Specifically, the liquid inlet connector 1322 may include a first flow regulating valve 13221, which is used to regulate the flow rate and flow of the coolant to avoid the cooling efficiency of the liquid cooling module 13 being reduced due to the coolant flow rate being too fast or too slow, as well as the problem of uneven heat dissipation in some areas, thereby improving the heat dissipation uniformity of the liquid cooling module 13.

[0074] The second pipeline assembly 133 further includes a liquid outlet connector 1332, which is located on the side of the plurality of second connectors 1331 away from the liquid cooling assembly 131. The liquid outlet connector 1332 is connected to the second connectors 1331 and serves as the outlet end of the coolant, thereby guiding the coolant that has completed heat exchange to flow out of the liquid cooling module 13 through the liquid outlet connector 1332.

[0075] Specifically, the liquid outlet connector 1332 may include a second flow regulating valve 13321, which is used to control the discharge rate of the coolant to prevent the coolant from stagnating in the liquid cooling plate 1311 or flowing too fast, which would lead to a decrease in heat exchange efficiency.

[0076] Furthermore, the structure of the liquid inlet connector 1322 is the same as that of the liquid outlet connector 1332. Both the liquid inlet connector 1322 and the liquid outlet connector 1332 can be made of high-strength corrosion-resistant materials (such as aluminum alloy, engineering plastics or stainless steel) to ensure that the liquid inlet connector 1322 and the liquid outlet connector 1332 can operate stably for a long time under high temperature and high pressure environment, thereby improving the service life of the liquid cooling module 13.

[0077] Please continue to combine Figures 1 to 6 In one embodiment, the liquid cooling module 13 further includes a first pipeline assembly 132 and a second pipeline assembly 133. The first pipeline assembly 132 is connected to the liquid inlet 1311A and the liquid outlet 1311B, thereby optimizing the flow path of the coolant and improving the heat dissipation efficiency and stability of the liquid cooling module 13.

[0078] Furthermore, the first pipeline assembly 132 is disposed at one end of the plurality of liquid cooling components 131 and communicates with the liquid inlet 1311A of the liquid cooling plate 1311, so that the coolant can be evenly distributed from the first pipeline assembly 132 to each of the liquid cooling plates 1311. The second pipeline assembly 133 is disposed at the other end of the plurality of liquid cooling components 131 and communicates with the liquid outlet 1311B of the liquid cooling plate 1311, so that the coolant flows out of the liquid cooling plate 1311 after absorbing the heat of the battery module 12, thereby completing the cooling cycle.

[0079] Specifically, the first pipeline assembly 132 includes multiple interconnected first liquid inlet pipes 1325 and multiple second liquid inlet pipes 1326. One first liquid inlet pipe 1325, one second liquid inlet pipe 1326, and one liquid cooling assembly 131 are correspondingly arranged. One end of one first liquid inlet pipe 1325 is connected to the liquid inlet 1311A of one liquid cooling plate 1311, and one end of one second liquid inlet pipe 1326 is connected to the liquid inlet 1311A of another liquid cooling plate 1311. This allows the coolant to enter multiple liquid cooling plates 1311 simultaneously, ensuring uniform flow of coolant in each liquid cooling assembly 131, improving cooling uniformity, and reducing the risk of local overheating of the battery module 12.

[0080] The second piping assembly 133 includes a plurality of interconnected first liquid outlet pipes 1335 and a plurality of second liquid outlet pipes 1336. One first liquid outlet pipe 1335, one second liquid outlet pipe 1336, and one liquid cooling assembly 131 are respectively arranged. One end of one first liquid outlet pipe 1335 is connected to the liquid outlet 1311B of one liquid cooling plate 1311, and one end of one second liquid outlet pipe 1336 is connected to the liquid outlet 1311B of another liquid cooling plate 1311. This allows the coolant to complete heat exchange inside the liquid cooling plate 1311, and then flow at the liquid outlet 1311B and be discharged through the second piping assembly 133, thereby improving the heat dissipation efficiency of the liquid cooling assembly 131.

[0081] Please continue to combine Figures 1 to 6 In one embodiment, the first pipeline assembly 132 further includes a plurality of third connectors 1323, each of which is connected to a first connector 1321, a first liquid inlet pipe 1325 and a second liquid inlet pipe 1326, thereby enabling the coolant to be evenly distributed in the first liquid inlet pipe 1325 and the second liquid inlet pipe 1326, ensuring that the coolant can flow into the plurality of liquid cooling plates 1311 simultaneously, thereby improving the heat dissipation performance of the liquid cooling module 13.

[0082] Specifically, the third connector 1323 can be a three-way connector. Coolant flows into the third connector 1323 from the first connector 1321, and then is evenly distributed to the first liquid inlet pipe 1325 and the second liquid inlet pipe 1326 through the third connector 1323. This ensures that the liquid cooling medium in the two adjacent liquid cooling plates 1311 can flow synchronously, avoids local flow deviation, and improves the temperature control capability of the liquid cooling assembly 131.

[0083] The second pipeline assembly 133 also includes a plurality of fourth connectors 1333, each of which is connected to a second connector 1331, a first liquid outlet pipe 1335 and a second liquid outlet pipe 1336, so that after the coolant completes heat exchange inside the liquid cooling plate 1311, it can flow out of the liquid cooling module 13 efficiently and evenly through the first liquid outlet pipe 1335 and the second liquid outlet pipe 1336, reducing the problem of uneven local flow rate and improving the heat dissipation efficiency of the liquid cooling module 13.

[0084] Specifically, the fourth connector 1333 can be a T-connector. Coolant flows from the outlet 1311B of the liquid cooling plate 1311 into the first outlet pipe 1335 and the second outlet pipe 1336, then flows through the fourth connector 1333 into the second connector 1331, and finally is quickly discharged from the liquid cooling assembly 131 through the second pipeline assembly 133. This maintains the fluid pressure balance inside the liquid cooling assembly 131, prevents the flow rate in local areas from being too fast or too slow, and further improves the uniformity and stability of heat dissipation.

[0085] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 ;in, Figure 7 This is a schematic diagram of the structure of the first regulating valve / second regulating valve provided in the embodiment of this utility model.

[0086] In one embodiment, the first piping assembly 132 includes a plurality of first regulating valves 1324, one of which is disposed between two adjacent first connectors 1321. One end of the regulating valve is connected to one of the first connectors 1321, and the other end is connected to the other first connector 1321. By providing the first regulating valve 1324, the flow rate of the coolant can be precisely controlled before the coolant enters the liquid cooling assembly 131.

[0087] Specifically, the first regulating valve 1324 can regulate the flow rate of the coolant entering the cooling assembly. By precisely controlling the distribution ratio of the coolant, the problem of uneven heat dissipation caused by insufficient coolant flow in the liquid cooling plate 1311 can be avoided.

[0088] The second pipeline assembly 133 includes a plurality of second regulating valves 1334. One second regulating valve 1334 is disposed between two adjacent second connectors 1331, and one end of the second regulating valve 1334 is connected to one second connector 1331, and the other end of the second regulating valve 1334 is connected to another second connector 1331. This ensures that the coolant can be evenly discharged through the second pipeline assembly 133 after completing heat exchange, and avoids problems such as poor flow and uneven heat exchange caused by the coolant stagnating in the liquid cooling plate 1311.

[0089] Furthermore, the structures of the first regulating valve 1324 and the second regulating valve 1334 can be the same, and both the first regulating valve 1324 and the second regulating valve 1334 can be mechanically controlled valves; specifically, both the first regulating valve 1324 and the second regulating valve 1334 are manual regulating valves, which have simple structures, are easy to install and maintain, and have high reliability; wherein, the manual regulating valve can adopt a knob type, lever type or plug type structure to meet the operational requirements of different application environments.

[0090] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 ;in, Figure 8 A cross-sectional schematic diagram of the first liquid cooling plate provided in an embodiment of this utility model; Figure 9 This is a schematic diagram of the structure of the second liquid cooling plate provided in an embodiment of the present invention.

[0091] In one embodiment, the liquid cooling assembly 131 includes a first liquid cooling plate 13111 and a second liquid cooling plate 13112 disposed opposite to each other along the height direction of the liquid cooling module 13, and a battery module 12 is disposed between the first liquid cooling plate 13111 and the second liquid cooling plate 13112, thereby improving the heat dissipation effect of the battery module 12.

[0092] Furthermore, a receiving cavity 1310 is formed between the first liquid cooling plate 13111, the second liquid cooling plate 13112, and the housing 1313, and the receiving cavity 1310 is used to place the battery module 12; wherein, the housing 1313 has a first opening 13131 and a second opening 13132, the first opening 13131 is disposed near the first liquid cooling plate 13111, and the second opening 13132 is disposed near the second liquid cooling plate 13112; wherein, the first liquid cooling plate 13111 contacts the bottom of the battery module 12 through the first opening 13131, and the second liquid cooling plate 13112 contacts the top of the battery module 12 through the second opening 13132, thereby achieving double-sided cooling of the battery module 12, improving heat dissipation efficiency, and avoiding the occurrence of temperature unevenness caused by local heat accumulation.

[0093] Specifically, the housing 1313 includes a first connecting portion 13133, which is circumferentially disposed around the edge of the first opening 13131. The first connecting portion 13133 has a plurality of first mounting holes 131331. The first liquid cooling plate 13111 includes a bottom plate 131111, a side plate 131112, and a protrusion 131113. The bottom plate 131111 contacts the bottom of the battery module 12. The side plate 131112 is circumferentially disposed around the edge of the bottom plate 131111. The protrusion 131113 is circumferentially disposed around the edge of the side plate 131112 away from the bottom plate 131111. The protrusion 131113 has a plurality of second mounting holes 1311131, and one second mounting hole 1311131 corresponds to one first mounting hole 131331.

[0094] The first connecting part 13133 is disposed on the protrusion 131113. The first connecting part 13133 and the protrusion 131113 are fixedly connected by a connector, and the connector passes through the first mounting hole 131331 and the second mounting hole 1311131, thereby realizing the fixed connection between the first liquid cooling plate 13111 and the housing 1313, forming a stable mounting structure between the first liquid cooling plate 13111 and the housing 1313, ensuring that the first liquid cooling plate 13111 is tightly attached to the bottom of the battery module 12, thereby improving the heat conduction efficiency, reducing contact problems caused by vibration or thermal expansion, and ensuring the reliability and stability of the liquid cooling module 13.

[0095] The second liquid cooling plate 13112 has a plurality of third mounting holes 131121, which are arranged around the edge of the second liquid cooling plate 13112; the housing 1313 includes a second connecting part 13134, which is arranged around the edge of the second opening 13132, and the second connecting part 13134 has a plurality of fourth mounting holes 131341, with one fourth mounting hole 131341 corresponding to one third mounting hole 131121.

[0096] The second liquid cooling plate 13112 and the second connecting part 13134 are fixedly connected by a connector, which passes through the third mounting hole 131121 and the fourth mounting hole 131341, thereby achieving a fixed connection between the second liquid cooling plate 13112 and the housing 1313. This creates a stable mounting structure between the second liquid cooling plate 13112 and the housing 1313, ensuring that the second liquid cooling plate 13112 is tightly attached to the top of the battery module 12. This improves heat conduction efficiency, reduces poor contact caused by vibration or thermal expansion, and ensures the reliability and stability of the liquid cooling module 13.

[0097] It should be noted that the connector can be made of bolts, rivets or quick-release clips, which facilitates the assembly and maintenance of the liquid cooling plate, enables quick disassembly and replacement, and improves the flexibility of modular design.

[0098] Specifically, the first liquid cooling plate 13111 is provided with a plurality of first liquid cooling channels 13121 arranged in series. One end of the plurality of first liquid cooling channels 13121 is connected to the liquid inlet 1311A of the first liquid cooling plate 13111, and the other end of the plurality of first liquid cooling channels 13121 is connected to the liquid outlet 1311B of the first liquid cooling plate 13111. The coolant flows through the plurality of interconnected first liquid cooling channels 13121 in sequence, so that the coolant maintains continuity during the flow process and enhances the heat exchange effect inside the first liquid cooling plate 13111.

[0099] The bottom plate 131111 of the second liquid cooling plate 13112 is provided with a plurality of second liquid cooling channels 13122 arranged in parallel. One end of the plurality of second liquid cooling channels 13122 is connected to the liquid inlet 1311A of the second liquid cooling plate 13112, and the other end of the plurality of second liquid cooling channels 13122 is connected to the liquid outlet 1311B of the second liquid cooling plate 13112. Coolant can enter the plurality of second liquid cooling channels 13122 simultaneously, and after heat exchange in the second liquid cooling channels 13122, it flows out through the channels. At the same time, the plurality of second liquid cooling channels 13122 arranged in parallel can reduce the flow resistance of the coolant, so that the coolant can be quickly distributed to the entire interior of the second liquid cooling plate 13112, improving the cooling uniformity and avoiding the occurrence of temperature unevenness caused by local heat accumulation.

[0100] Furthermore, both the first liquid cooling plate 13111 and the second liquid cooling plate 13112 can be made of high thermal conductivity materials, such as aluminum alloy, copper alloy or composite thermal conductivity materials, to improve heat transfer efficiency and enhance the durability of the system; wherein, both the first liquid cooling plate 13111 and the second liquid cooling plate 13112 can be directly formed into the first liquid cooling channel 13121 by extrusion process, thereby reducing the manufacturing cost of the first liquid cooling plate 13111.

[0101] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A liquid-cooled module, comprising: include: Multiple liquid cooling components are arranged at intervals along the height direction of the liquid cooling module. Each liquid cooling component has a receiving cavity for placing the battery module. The liquid inlets of the plurality of liquid cooling components are interconnected, and the liquid outlets of the plurality of liquid cooling components are interconnected.

2. The liquid-cooled module of claim 1, wherein, The liquid inlets and outlets of the plurality of liquid cooling components are located on the same side of the liquid cooling module.

3. The liquid-cooled module of claim 2, wherein, The liquid cooling module includes: A first pipeline assembly is disposed at one end of the plurality of liquid cooling assemblies, and the first pipeline assembly is connected to the liquid inlet of the plurality of liquid cooling assemblies; The second pipeline assembly is disposed at the other end of the plurality of liquid cooling assemblies, and the first pipeline assembly is connected to the liquid outlet of the plurality of liquid cooling assemblies.

4. The liquid-cooled module of claim 3, wherein, The inlets of the first pipeline assembly, the second pipeline assembly, the liquid inlets of the plurality of liquid cooling assemblies, and the liquid outlets of the plurality of liquid cooling assemblies are located on the same side of the liquid cooling module.

5. The liquid-cooled module of claim 3, wherein, The liquid cooling assembly includes two liquid cooling plates arranged opposite each other along the height direction of the liquid cooling module; The first piping assembly includes a plurality of interconnected first connectors, one first connector is provided for one liquid cooling assembly, and in one first connector and its corresponding liquid cooling assembly, the first connector is connected to the liquid inlet of two adjacent liquid cooling plates. The second piping assembly includes a plurality of interconnected second connectors, one second connector corresponding to one liquid cooling assembly, and in one liquid cooling assembly corresponding to one second connector, the second connector is connected to the liquid outlet of two adjacent liquid cooling plates.

6. The liquid-cooled module of claim 5, wherein, The first pipeline assembly includes a plurality of first regulating valves, one of which is disposed between two adjacent first connectors, and one end of the first regulating valve is connected to one of the first connectors, and the other end of the first regulating valve is connected to another first connector. The second pipeline assembly includes a plurality of second regulating valves, one of which is disposed between two adjacent second connectors, and one end of the second regulating valve is connected to one of the second connectors, and the other end of the second regulating valve is connected to another second connector.

7. The liquid-cooled module of claim 5, wherein, The first piping assembly includes a liquid inlet connector, which is located on the side of the plurality of first connectors away from the liquid cooling assembly. The liquid inlet connector is connected to the first connector and serves as the inlet end of the cooling medium. The second piping assembly further includes a liquid outlet connector, which is located on the side of the plurality of second connectors away from the liquid cooling assembly. The liquid outlet connector is connected to the second connector and serves as the outlet end of the cooling medium.

8. The liquid-cooled module of claim 7, wherein, The first pipeline assembly includes multiple first liquid inlet pipes and multiple second liquid inlet pipes that are interconnected. One first liquid inlet pipe, one second liquid inlet pipe, and one liquid cooling assembly are respectively arranged. One end of one first liquid inlet pipe is connected to the liquid inlet of one liquid cooling plate, and one end of one second liquid inlet pipe is connected to the liquid inlet of another liquid cooling plate. The second pipeline assembly comprises a plurality of first liquid outlet pipes and a plurality of second liquid outlet pipes in communication with each other, one first liquid outlet pipe, one second liquid outlet pipe and one liquid cooling assembly are correspondingly arranged, one end of one first liquid outlet pipe is connected to the liquid outlet of one liquid cooling plate, and one end of one second liquid outlet pipe is connected to the liquid outlet of another liquid cooling plate.

9. The liquid-cooled module of claim 8, wherein, The first pipeline assembly further comprises a plurality of third joints, one third joint is connected to one first joint, one first liquid inlet pipe and one second liquid inlet pipe respectively. The first pipeline assembly further comprises a plurality of fourth joints, one fourth joint is connected to one second joint, one first liquid outlet pipe and one second liquid outlet pipe respectively.

10. The liquid-cooled module of any one of claims 1-9, wherein, The liquid cooling assembly comprises a first liquid cooling plate and a second liquid cooling plate arranged opposite along the height direction of the liquid cooling module, and a shell connected between the first liquid cooling plate and the second liquid cooling plate, the first liquid cooling plate, the second liquid cooling plate and the shell form the accommodating cavity, and the accommodating cavity is used for placing the battery module.

11. The liquid-cooled module of claim 10, wherein, The shell is provided with a first opening and a second opening, the first opening is arranged close to the first liquid cooling plate, and the second opening is arranged close to the second liquid cooling plate. The first liquid cooling plate is in contact with the bottom of the battery module through the first opening, and the second liquid cooling plate is in contact with the top of the battery module through the second opening.

12. The liquid-cooled module of claim 11, wherein, The shell comprises a first connecting portion, the first connecting portion is annularly arranged at the edge of the first opening, and the first connecting portion is provided with a plurality of first mounting holes. The first liquid cooling plate comprises a bottom plate, a side plate and a protruding portion, the bottom plate is in contact with the bottom of the battery module, the side plate is annularly arranged at the edge of the bottom plate, the protruding portion is annularly arranged at the edge of the side plate away from the bottom plate, the protruding portion is provided with a plurality of second mounting holes, and one second mounting hole corresponds to one first mounting hole. The first connecting portion is arranged on the protruding portion, the first connecting portion and the protruding portion are fixedly connected through a connecting piece, and the connecting piece passes through the first mounting hole and the second mounting hole.

13. The liquid-cooled module of claim 12, wherein, The second liquid cooling plate is provided with a plurality of third mounting holes, and the plurality of third mounting holes are annularly arranged at the edge of the second liquid cooling plate. The shell comprises a second connecting portion, the second connecting portion is annularly arranged at the edge of the second opening, the second connecting portion is provided with a plurality of fourth mounting holes, and one fourth mounting hole corresponds to one third mounting hole. The second liquid cooling plate and the second connecting portion are fixedly connected through a connecting piece, and the connecting piece passes through the third mounting hole and the fourth mounting hole.

14. The liquid-cooled module of claim 13, wherein, The bottom plate is provided with a plurality of first liquid cooling flow channels arranged in series, and the second liquid cooling plate is provided with a plurality of second liquid cooling flow channels arranged in parallel.

15. An energy storage device, characterized by, The battery rack, a plurality of battery modules and the liquid cooling module according to any one of claims 1 to 14 are comprised, and one battery module is arranged between two adjacent liquid cooling plates.

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