Battery cell module with liquid cooling function

Abstract

The invention relates to the technical field of battery packs, in particular to a battery cell module with a liquid cooling function, the battery cell module comprises a battery cell module support formed by longitudinally splicing a plurality of U-shaped battery cell brackets, and each battery cell bracket comprises a battery cell supporting plate and battery cell baffles symmetrically arranged on the two sides of the battery cell supporting plate; vertical screw rod through holes are respectively formed in the battery cell baffles, and the longitudinally arranged screw rod through holes are connected in series through screw rods, so that the longitudinally arranged battery cell brackets are spliced; the battery cell supporting plate and the two battery cell baffles form a battery cell module mounting position for placing a battery cell module, the battery cell module comprises a plurality of regularly arranged battery cell units, and a liquid cooling plate is arranged between every two adjacent battery cell units. The battery cell module with the liquid cooling function is simple in structure, can realize modular assembly and disassembly, is good in heat dissipation effect, and can also facilitate rapid electric connection among the battery cell modules.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packs, and in particular to a battery core module with a liquid cooling function. Background Art

[0002] At present, new energy vehicles have attracted wide attention from all walks of life due to their excellent environmental performance. The requirements for new energy vehicles are also constantly increasing. As a new energy vehicle, electric vehicles are also developing in the direction of high safety, high energy ratio and light weight. The main factor that determines the mileage of electric vehicles is the power supply battery. Different specifications of power supply batteries can be selected for different models to meet driving requirements.

[0003] The power supply battery for electric vehicles is generally a battery pack composed of multiple battery modules, that is, multiple battery modules are stacked in the same box, and then the battery modules are connected. The core battery module is generally configured with a corresponding number of batteries according to the size of the required output voltage, and then all the batteries are connected to output the voltage. The voltage output of the battery module needs to be pre-wired with the battery pack high-voltage box built into the box.

[0004] In a battery pack, in order to reduce the horizontal area occupied by the battery pack while ensuring that the capacity is large enough, many battery modules are stacked vertically. In order to facilitate the vertical stacking of individual battery modules, double-sided tape or a box is usually used for vertical connection.

[0005] The above method is not only inconvenient for the longitudinal installation of the battery cell module, but also inconvenient for subsequent disassembly and maintenance after bonding.

[0006] On the other hand, the battery cell module will generate a lot of heat during operation. If it is not effectively cooled, it may cause damage to the battery at the very least, or even cause a fire, posing a threat to life safety.

[0007] In order to solve the above heat dissipation problem, the existing solution generally sets a liquid cooling plate with liquid cooling on the bottom side of the battery module, which can absorb the heat of the battery module during operation and then discharge it outward through the coolant to achieve the purpose of heat dissipation. However, this method can only dissipate heat at the bottom of the battery cell, while the side of the battery cell, which occupies a large area, is an important area where heat is generated. There is no good way to dissipate heat there in the existing technology.

[0008] Therefore, a new technical solution is urgently needed to solve the above technical problems. Summary of the invention

[0009] The purpose of the present invention is to overcome the above-mentioned problems of the prior art and provide a battery cell module with liquid cooling function, which is used to solve the technical problems that the existing battery cell modules are difficult to disassemble and maintain when they are stacked vertically, and the battery cells stacked horizontally can only dissipate heat at the bottom of the battery cell module, but cannot effectively dissipate heat at the sides of the battery cells.

[0010] The above objectives are achieved through the following technical solutions: A battery cell module with a liquid cooling function comprises a battery cell module bracket formed by longitudinally splicing a plurality of U-shaped battery cell brackets, each of the battery cell brackets comprises a battery cell support plate and battery cell baffles symmetrically arranged on both sides of the battery cell support plate; each of the battery cell baffles is respectively provided with a vertical screw through hole, and the longitudinally arranged screw through holes are connected in series by screws to realize the splicing of the longitudinally arranged battery cell brackets; the battery cell support plate and the two battery cell baffles constitute a battery cell module installation position for arranging the battery cell module, and the battery cell module comprises A plurality of regularly arranged battery cell units are provided with a liquid cooling plate between adjacent battery cell units, and a liquid inlet interface and a liquid outlet interface are provided at the same end of each of the liquid cooling plates, each of the liquid inlet interfaces is connected to a liquid inlet branch pipe through a liquid inlet branch pipe, and a liquid inlet branch pipe interface is provided on the liquid inlet branch pipe; each of the liquid outlet interfaces is connected to a liquid outlet branch pipe through a liquid outlet branch pipe, and a liquid outlet branch pipe interface is provided on the liquid outlet branch pipe; each of the liquid inlet branch pipe interfaces is connected through a vertical liquid inlet main pipe, and each of the liquid outlet branch pipe interfaces is connected through a vertical liquid outlet main pipe.

[0011] Furthermore, a guide column is provided on the top of the battery cell baffle, and a guide hole is provided at a position corresponding to the guide column on the bottom of the battery cell baffle.

[0012] Furthermore, the battery cell unit includes one battery cell or two battery cell units; if there are two battery cell units, battery cell heat insulation cotton is arranged between two adjacent battery cell units.

[0013] Furthermore, a PC board is arranged between the battery cell module and the battery cell baffle.

[0014] Furthermore, a buffer foam is arranged between the PC board and the inner wall of the battery cell baffle.

[0015] Furthermore, the battery cell module also includes a CCS component module arranged on the top of the battery cell unit, and the CCS component module includes a battery cell aluminum bar connected to a plurality of battery cell monomers, and a flexible circuit board connected to the battery cell aluminum bar; the battery cell baffle is provided with a terminal slot, and a terminal seat is clamped in the terminal slot, and the terminal seat can be connected to the battery cell aluminum bar located at both ends of the CCS component module.

[0016] Furthermore, the liquid cooling plate includes an upper liquid cooling plate and a lower liquid cooling plate arranged in parallel, and a front liquid cooling end plate and a rear liquid cooling end plate are arranged at both ends of the upper liquid cooling plate and the lower liquid cooling plate. The upper liquid cooling plate, the lower liquid cooling plate, the front liquid cooling end plate and the rear liquid cooling end plate are connected to each other to form a liquid cooling cavity that is interconnected; the liquid inlet interface and the liquid outlet interface are arranged on the front liquid cooling end plate.

[0017] Furthermore, a battery cell module heat insulation cotton is arranged between the battery cell module located at the lower layer and the battery cell bracket located at the upper layer.

[0018] Furthermore, two battery cell modules are horizontally arranged in the same battery cell bracket, and two battery cell units in the two battery cell modules that are horizontal to each other share one liquid cooling plate.

[0019] Furthermore, the battery cell bracket is made of metal aluminum.

[0020] The present invention provides a battery module with liquid cooling function, which realizes longitudinal stacking of the battery module by means of a longitudinally arranged battery bracket and a screw rod, divides the battery cells constituting the battery module into a plurality of battery cells, and arranges a liquid cooling plate between adjacent battery cells, thereby realizing cooling and heat dissipation on the side of the battery cells. The battery module with liquid cooling function is not only simple in structure, can realize modular assembly and disassembly, but also has good heat dissipation effect, and can also facilitate rapid electrical connection between the battery modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a battery cell module with liquid cooling function from a first perspective according to the present invention; Figure 2 This is a schematic structural diagram from a second viewing angle of a battery cell module with a liquid cooling function according to the present invention; Figure 3 This is a schematic diagram of the structure of a battery module with liquid cooling function from a third perspective according to the present invention; Figure 4 It is a schematic diagram of assembling multiple battery cell brackets of a battery cell module with liquid cooling function according to the present invention; Figure 5 It is a structural schematic diagram of a cell module containing a CCS component module in a cell module with liquid cooling function according to the present invention; Figure 6 It is a structural schematic diagram of a cell module without a cover of a CCS component module in a cell module with a liquid cooling function according to the present invention; Figure 7 A schematic diagram of the structure of a battery cell module and a schematic diagram of the connection of a battery cell bracket in a battery cell module with a liquid cooling function according to the present invention; Figure 8It is a structural schematic diagram of a battery cell module and an assembly schematic diagram of a battery cell bracket in a battery cell module with liquid cooling function described in the present invention; Fig. 9 This is a schematic structural diagram of a liquid cooling plate in a battery cell module with liquid cooling function described in the present invention.

[0022] Graphic marking: 1-battery cell bracket, 101-battery cell support plate, 102-battery cell baffle, 103-screw through hole, 104-guide column, 105-guide hole, 106-terminal slot; 2-battery cell module, 201-battery cell unit, 202-battery cell monomer, 203-CCS component module, 204-battery cell aluminum bar, 205-flexible circuit board; 3-liquid cooling plate, 301-liquid inlet interface, 302-liquid outlet interface, 303-liquid inlet branch pipe, 304-liquid inlet branch pipe, 305-liquid inlet branch pipe interface, 306-liquid outlet branch pipe, 307-liquid outlet branch pipe, 308-liquid outlet branch pipe interface, 309-liquid inlet main pipe, 310-liquid outlet main pipe, 311-upper liquid cooling plate, 312-lower liquid cooling plate, 313-front liquid cooling end plate, 314-rear liquid cooling end plate, 315-liquid inlet main pipe interface, 316-liquid outlet main pipe interface; 4- screw; 5-Battery core insulation cotton; 6-Terminal seat; 7-PC board. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below based on the accompanying drawings and embodiments. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 to Figure 4 and Figure 8 As shown, the present solution provides a battery cell module with a liquid cooling function, including a battery cell module bracket formed by longitudinally splicing a plurality of U-shaped battery cell brackets 1, each of the battery cell brackets 1 including a battery cell support plate 101, and battery cell baffles 102 symmetrically arranged on both sides of the battery cell support plate 101; each of the battery cell baffles 102 is respectively provided with a vertical screw through hole 103, and the longitudinally arranged battery cell brackets 1 are spliced ​​by connecting the screw 4 to the longitudinally arranged screw through holes 103; The cell support plate 101 and the two cell baffles 102 constitute a cell module installation position for arranging a cell module 2, the cell module 2 includes a plurality of regularly arranged cell units 201, a liquid cooling plate 3 is arranged between adjacent cell units 201, and a liquid inlet interface 301 and a liquid outlet interface 302 are respectively arranged at the same end of each of the liquid cooling plates 3, each of the liquid inlet interfaces 301 is respectively connected to a liquid inlet branch pipe 304 through a liquid inlet branch pipe 303, and a liquid inlet branch pipe interface 305 is arranged on the liquid inlet branch pipe 304; each of the liquid outlet interfaces 302 is respectively connected to a liquid outlet branch pipe 307 through a liquid outlet branch pipe 306, and a liquid outlet branch pipe interface 308 is arranged on the liquid outlet branch pipe 307; The liquid inlet branch pipe interfaces 305 are connected via a vertical liquid inlet main pipe 309 , and the liquid outlet branch pipe interfaces 308 are connected via a vertical liquid outlet main pipe 310 .

[0025] In this embodiment, the battery modules of the same specifications are arranged longitudinally according to the required battery capacity, and the battery brackets 1 of the same specifications are used as the placement carriers of the battery modules 2.

[0026] During assembly, the battery cell modules 2 and the battery cell bracket 1 each having a liquid cooling plate 3, a liquid inlet branch pipe 304 and a liquid outlet branch pipe 307 are assembled in advance to form an independent battery cell module. Then, as needed, several battery cell modules required by pre-calculation are stacked longitudinally to achieve longitudinal splicing.

[0027] It should be noted that, since the battery cell module 2 is used for a battery pack, the bottom layer of the battery cell bracket 1 is placed on the bottom plate of the battery pack case, and then stacked vertically in sequence. After all the stacking is completed, a screw is passed downward from the screw through hole 103 on the top layer of the battery cell module 2, and then the screw through holes 103 of each layer of the battery cell bracket 1 are passed through in sequence and then screwed together with the threaded holes pre-arranged on the bottom plate of the battery pack case, thereby realizing the splicing of multiple battery cell brackets 1 equipped with battery cell modules 2 and firmly connecting them to the battery pack case.

[0028] Then, the liquid inlet branch pipe interfaces 305 on the same side of each layer are connected to the vertical liquid inlet main pipe 309 , and the liquid outlet branch pipe interfaces 308 on the same side of each layer are connected to the vertical liquid outlet main pipe 310 .

[0029] As a specific embodiment of the present solution, there are three screw through holes 103 on each of the battery cell baffles 102, and each corresponding battery cell bracket 1 is connected in series through six screws 4, which can further enhance the firmness.

[0030] In this embodiment, the liquid inlet main pipe 309 is provided with a liquid inlet main pipe interface 315, and the liquid outlet main pipe 310 is provided with a liquid outlet main pipe interface 316. The liquid inlet main pipe interface 315 and the liquid outlet main pipe interface 316 are respectively used to connect with an external coolant circulation device, and are used to input low-temperature coolant into the liquid inlet main pipe 309, and then flow to the liquid inlet branch pipe 303 through each liquid inlet branch pipe 304, and then enter the corresponding liquid cooling plate 3, and then converge to the liquid outlet branch pipe 307 through the liquid outlet branch pipe 306, and then enter the liquid outlet main pipe 310, and finally flow into the external coolant circulation device, and continue to work in a reciprocating cycle.

[0031] During the flow of the above-mentioned coolant, after the low-temperature coolant enters the liquid cooling plate 3, it will cool down and dissipate the heat generated by the operation of the battery cells absorbed by the liquid cooling plate 3, and the coolant will heat up. As the heated coolant flows out of the liquid cooling plate 3 and enters the external coolant circulation device, it is cooled by the external coolant circulation device, and then enters the liquid inlet main pipe 309, and the circulation cooling is realized in this reciprocating manner.

[0032] It should be noted that in this embodiment, there can be multiple groups of battery modules 2 located on the same layer, which are stacked horizontally with each other, and the battery units 201 of two battery modules 2 located on the same horizontal line can be cooled and dissipated by the same liquid cooling plate 3.

[0033] The battery cell bracket 1 is made of metal aluminum, which has the advantages of corrosion resistance, easy forming, high thermal conductivity, high strength and light weight.

[0034] like Figure 2 and Figure 4 As shown, as an optimization of the present solution, a guide post 104 is provided on the top of the cell baffle 102 , and a guide hole 105 is provided at the bottom of the cell baffle 102 at a position corresponding to the guide post 104 .

[0035] Specifically, through the above definition, the guide column 104 and the guide hole 105 are located on the same vertical axis. When multiple battery cell brackets 1 are stacked vertically, it is only necessary to align the guide hole 105 at the bottom of the battery cell bracket 1 on the upper layer with the guide column 104 at the top of the battery cell bracket 1 on the lower layer to achieve rapid assembly of the two, thereby effectively improving the vertical stacking efficiency of each battery cell module.

[0036] On the other hand, when it is necessary to disassemble and maintain the battery cell module 2 of any layer, it is only necessary to pull out and move away one or more battery cell brackets 101 located on the upper layer of the corresponding layer, which makes disassembly more convenient compared with traditional longitudinal bonding.

[0037] In this embodiment, the battery cell unit 201 includes one battery cell 202 or two battery cell 202; if there are two battery cell 202, a battery cell heat insulation cotton 5 is arranged between two adjacent battery cell 202, such as Figure 7 shown.

[0038] Specifically, the battery generates heat during the charging and discharging process, and the thermal insulation cotton can effectively block the heat transfer between the cells, avoid local overheating, and maintain the uniformity of the temperature inside the battery. When the cell has thermal runaway, the thermal insulation cotton can prevent the heat from being quickly transferred to the adjacent cells, delay the spread of thermal runaway, and reduce the risk of overall battery runaway. In addition, it also has the functions of absorbing the expansion stress generated by the cell during the charging and discharging process, flame retardant, shock absorbing and insulating.

[0039] As a specific embodiment of the present solution, the battery cells 201 at the two outer ends of the battery cell module are one battery cell, and the battery cells 201 located at the non-side edges are two battery cells. This arrangement can provide sufficient discharge space for the pipeline and can not reduce too many battery cells on the battery cell module 2 to ensure that it has sufficient power.

[0040] like Figure 7 As shown, in this embodiment, a PC board 7 is arranged between the battery cell module 2 and the battery cell baffle 102 .

[0041] The PC board 7 is a polycarbonate sheet, which has excellent optical properties, mechanical properties, heat resistance and electrical insulation properties, and can provide side protection for the battery module.

[0042] As a further optimization of this solution, a buffer foam (not marked in the figure) is further provided between the PC board 7 and the inner wall of the cell baffle 102. Since the buffer foam has excellent buffering, heat insulation, flame retardancy and environmental protection properties, it can further compact the cell module 2 stacked in the cell bracket and provide a stable working environment so that the cell module will not be displaced due to external vibration.

[0043] like Figure 5 and 6 As shown, the battery module 2 in this embodiment further includes a CCS assembly module 203 disposed on the top of the battery unit 201, and the CCS assembly module 203 includes a battery aluminum bar 204 connected to a plurality of battery cells 202, and a flexible circuit board 205 connected to the battery aluminum bar 204; The cell baffle 102 is provided with a terminal slot 106 , in which a terminal seat 6 is clamped. The terminal seat 6 can be connected to the cell aluminum bars 204 at both ends of the CCS component module 203 .

[0044] Specifically, the CCS assembly module 203, also known as the battery cover assembly, is a key electrical connection structural component in the battery module, and its main functions include: High-voltage series-parallel connection of battery cells: Realize high-voltage series-parallel connection of battery cells in the battery module to ensure the normal operation of the battery system.

[0045] Information collection: Integrate signal acquisition components (such as FPC, FFC, etc.) to collect battery temperature, voltage and other information, providing important data support for BM (battery management system).

[0046] Safety protection: With over-current fuse function, it can quickly cut off the current when abnormality occurs in the battery system to prevent the fault from expanding.

[0047] In this embodiment, by respectively arranging terminal seats 6 on the two cell baffles 102 of the cell bracket 1, it can greatly facilitate the electrical connection of the cell module 2 with the adjacent cell modules 2 in the longitudinal direction, that is, the two terminal seats 6 on the same side of the cell brackets on the upper and lower layers are electrically connected through the copper busbar; at the same time, it is also convenient to realize electrical connection with the battery high-voltage box through the terminal seat 6 via the copper busbar.

[0048] Compared with the traditional wire connection, this structure can effectively improve the connection efficiency between the battery modules 2 and between the battery module 2 and the battery high-voltage box.

[0049] like Fig. 9 As shown, the liquid cooling plate 3 in this embodiment includes an upper liquid cooling plate 311 and a lower liquid cooling plate 312 arranged in parallel, and a front liquid cooling end plate 313 and a rear liquid cooling end plate 314 are arranged at both ends of the upper liquid cooling plate 311 and the lower liquid cooling plate 312. The upper liquid cooling plate 311, the lower liquid cooling plate 312, the front liquid cooling end plate 313 and the rear liquid cooling end plate 314 are connected to each other to form a liquid cooling cavity that is interconnected and is used for the flow of cooling liquid; The front liquid-cooled end plate 313 is provided with the liquid inlet interface 301 and the liquid outlet interface 302 , wherein the liquid inlet interface 301 corresponds to the upper liquid-cooled plate 311 , and the liquid outlet interface 302 corresponds to the lower liquid-cooled plate 312 , thereby facilitating the circulation of the cooling liquid in and out.

[0050] like Figure 7 As shown, a cell module heat insulation cotton 5 is arranged between the cell module 2 located at the lower layer and the cell bracket 1 located at the upper layer. The cell module heat insulation cotton 5 can effectively block the heat transfer between the upper and lower layers.

[0051] As another embodiment of the present solution, two or more battery cell modules 2 are horizontally arranged in the same battery cell bracket 1 , and two or more battery cell units 201 horizontal to each other in the two or more battery cell modules 2 share one liquid cooling plate 3 .

[0052] As a specific embodiment of the present scheme, the battery cell module 2 with liquid cooling function has a total of 3 layers, and 2 battery cell modules 3 of the same specifications are horizontally arranged on each layer of battery cell bracket 1. Since the two battery cell modules 3 are horizontally spliced, the battery cell units 201 are also horizontal with each other. By sharing one liquid cooling plate 3 for every 4 battery cell units 201, heat dissipation and cooling of multiple battery cell modules 2 can be achieved without increasing the liquid cooling plates 3. At the same time, the laying of liquid cooling pipes is also reduced, making the battery pack box more concise.

[0053] The above description is only for illustrating the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery cell module with liquid cooling function, characterized in that: A cell module bracket is provided, which is formed by longitudinally splicing a plurality of U-shaped cell brackets (1), each of the cell brackets (1) comprising a cell support plate (101) and cell baffles (102) symmetrically arranged on both sides of the cell support plate (101); each of the cell baffles (102) is provided with a vertical screw through hole (103), and the longitudinally arranged screw through holes (103) are connected in series by a screw (4), thereby realizing splicing of the longitudinally arranged cell brackets (1); The cell support plate (101) and the two cell baffles (102) constitute a cell module installation position for arranging a cell module (2); the cell module (2) comprises a plurality of regularly arranged cell units (201); a liquid cooling plate (3) is arranged between adjacent cell units (201); a liquid inlet interface (301) and a liquid outlet interface (302) are respectively arranged at the same end of each of the liquid cooling plates (3); each of the liquid inlet interfaces (301) is respectively connected to a liquid inlet branch pipe (304) via a liquid inlet branch pipe (303); and a liquid inlet branch pipe interface (305) is arranged on the liquid inlet branch pipe (304); each of the liquid outlet interfaces (302) is respectively connected to a liquid outlet branch pipe (307) via a liquid outlet branch pipe (306); and a liquid outlet branch pipe interface (308) is arranged on the liquid outlet branch pipe (307); The liquid inlet branch pipe interfaces (305) are connected via a vertical liquid inlet main pipe (309), and the liquid outlet branch pipe interfaces (308) are connected via a vertical liquid outlet main pipe (310).

2. The battery cell module with liquid cooling function according to claim 1, characterized in that: A guide column (104) is provided at the top of the battery cell baffle (102), and a guide hole (105) is provided at a position corresponding to the guide column (104) at the bottom of the battery cell baffle (102).

3. The battery core module with liquid cooling function according to claim 1, characterized in that: The battery cell unit (201) comprises one battery cell monomer (202) or two battery cell monomers (202); if there are two battery cell monomers (202), a battery cell heat insulation cotton (5) is arranged between two adjacent battery cell monomers (202).

4. A battery cell module with liquid cooling function according to claim 1 or 3, characterized in that: A PC board (7) is provided between the battery cell module (2) and the battery cell baffle (102).

5. The battery core module with liquid cooling function according to claim 1, characterized in that: Buffer foam is also provided between the PC board (7) and the inner wall of the battery cell baffle (102).

6. The battery cell module with liquid cooling function according to claim 1, characterized in that: The battery cell module (2) further comprises a CCS assembly module (203) arranged on the top of the battery cell unit (201), wherein the CCS assembly module (203) comprises a battery cell aluminum bar (204) connected to a plurality of battery cell monomers (202), and a flexible circuit board (205) connected to the battery cell aluminum bar (204); The battery cell baffle (102) is provided with a terminal slot (106), a terminal seat (6) is snapped into the terminal slot (106), and the terminal seat (6) can be connected to the battery cell aluminum bars (204) located at both ends of the CCS component module (203).

7. The battery cell module with liquid cooling function according to claim 1, characterized in that: The liquid cooling plate (3) comprises an upper liquid cooling plate (311) and a lower liquid cooling plate (312) which are arranged in parallel, and a front liquid cooling end plate (313) and a rear liquid cooling end plate (314) are arranged at both ends of the upper liquid cooling plate (311) and the lower liquid cooling plate (312), and the upper liquid cooling plate (311), the lower liquid cooling plate (312), the front liquid cooling end plate (313) and the rear liquid cooling end plate (314) are connected to each other to form a liquid cooling cavity which is interconnected; The front liquid-cooling end plate (313) is provided with the liquid inlet interface (301) and the liquid outlet interface (302).

8. The battery core module with liquid cooling function according to claim 1, characterized in that: A cell module heat insulation cotton (5) is arranged between the cell module (2) located at the lower layer and the cell bracket (1) located at the upper layer.

9. The battery core module with liquid cooling function according to claim 1, characterized in that: Two battery modules (2) are horizontally arranged in the same battery bracket (1), and two battery units (201) in the two battery modules (2) that are horizontal to each other share one liquid cooling plate (3).

10. The battery core module with liquid cooling function according to claim 1, characterized in that: The battery cell bracket (1) is made of metal aluminum.

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