A heat dissipation mounting structure of an inverted battery cell, a battery module, and a battery pack

Abstract

The utility model provides a kind of inverted cell's heat dissipation mounting structure, battery module and battery pack, design battery technical field, this inverted cell's heat dissipation mounting structure includes: two end plates, two end plates are spaced apart;At least two baffle plates, at least two baffle plates are spaced apart between two end plates, the both ends of baffle plate are connected with two end plates respectively, form accommodating cavity between adjacent two baffle plates, the bottom inside of accommodating cavity is formed with support part, the inside of accommodating cavity is used to arrange multiple upside-down setting cell, support part is used to support upside-down setting cell.Cover plate, cover plate covers the top of accommodating cavity, cover plate is detachably connected with end plate, end plate, baffle plate and cover plate are all provided with chamber for cooling liquid flow;The application realizes the integration of assembly and heat dissipation, while realizing good disassembly installation maintainability also has good heat dissipation, and saves the cost of tray manufacturing, further promotes the marketization of inverted cell.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, and more specifically, relates to a heat dissipation mounting structure for an inverted battery cell, a battery module, and a battery pack. Background Technology

[0002] With the booming development of the new energy industry, the arrangement of battery cells has become increasingly diversified. Among them, inverted battery cell installation is a relatively novel method with its own specific advantages. Currently, there are relatively few heat dissipation installation solutions for inverted battery cells on the market. Most assembly methods involve placing the battery cells on an insulating tray. However, the manufacturing cost of such trays is high, the production and assembly process is complex, and the battery cells and trays need to be glued together for fixation, which is very inconvenient for later replacement and maintenance. Furthermore, the liquid cooling plate is integrated into the bottom of the vehicle frame and installed in conjunction with the top of the battery pack. Therefore, only the top surface of the battery cell contacts the liquid cooling plate, resulting in less than ideal thermal management. Utility Model Content

[0003] The purpose of this utility model is to provide a heat dissipation mounting structure for inverted battery cells, a battery module, and a battery pack to address the shortcomings of existing technologies. This solves the problems of inconvenient replacement and maintenance, and unsatisfactory thermal management, where inverted battery cells are currently assembled on insulating trays and fixed to the trays with adhesive.

[0004] To achieve the above objectives, this utility model provides a heat dissipation mounting structure for an inverted battery cell, which includes:

[0005] Two end plates, which are spaced apart;

[0006] At least two partitions are spaced apart between two end plates. The two ends of each partition are connected to the two end plates respectively. A receiving cavity is formed between two adjacent partitions. A support portion is formed on the inner bottom side of the receiving cavity. The interior of the receiving cavity is used to arrange multiple inverted battery cells. The support portion is used to support the inverted battery cells.

[0007] A cover plate covers the top of the receiving cavity and is detachably connected to the end plate. The end plate, the partition, and the cover plate are all provided with chambers for coolant flow.

[0008] Preferably, the support portions are arranged in pairs and at least one pair is provided. The support portions are strip-shaped, and each pair of support portions is respectively connected to the bottom of the two side partitions of the receiving cavity.

[0009] Preferably, three partitions are provided, and three pairs of support parts are provided. The middle partition and the support part above it are integrally formed into an inverted T shape, and each outer partition and the support part above it are integrally formed into an L shape.

[0010] Preferably, multiple partitions are arranged at intervals in both the cavity of the partition plate and the cavity of the cover plate. The partitions are arranged along one end plate to the other end plate, and a flow channel is formed between two adjacent partitions.

[0011] Preferably, the end plate is provided with a groove at the position for connecting with the partition, and the inner side of the groove is provided with a slot hole communicating with the cavity of the end plate. The groove is connected to each of the flow channels of the partition.

[0012] Preferably, the heat dissipation mounting structure of the inverted battery cell further includes:

[0013] Two first tubes are provided, and the cover plate is provided with a first hole near the two end plates. One end of the two first tubes is respectively connected to the two first holes.

[0014] Two second tubes are provided, and two end plates are provided with second holes. One end of each of the two second tubes is connected to the two second holes respectively, and the first tube and the second tube that are close to each other are connected.

[0015] Preferably, the cover plate is provided with mounting holes for connection to the end plate, and the end plate is provided with mounting holes for connection to the battery pack housing.

[0016] Preferably, the cover plate, the end plate, and the partition plate are all made of aluminum profile plates, and the surfaces of the cover plate, the end plate, and the partition plate are all provided with an insulating layer.

[0017] A battery module comprising:

[0018] Heat dissipation mounting structure for inverted battery cells;

[0019] Multiple battery cells are arranged upside down inside the cavity.

[0020] A battery pack comprising:

[0021] A housing for connection to the battery compartment inside the hull;

[0022] The battery module is detachably connected inside the housing.

[0023] This utility model provides a heat dissipation mounting structure for inverted battery cells, a battery module, and a battery pack. Its advantages are as follows: At least two partitions are spaced apart between two end plates in the heat dissipation mounting structure for inverted battery cells. The two ends of each partition are connected to the two end plates, forming a cavity for holding the battery cells. A support portion supports the inverted battery cells, and a detachable cover plate limits the position of the inverted battery cells. This eliminates the need for a tray, replacing the previous method of fixing the battery cells to the tray with adhesive. The battery cells can be easily removed for replacement and maintenance, offering excellent disassembly, installation, and maintainability. Simultaneously, the end plates, partitions, and cover plate form a comprehensive heat dissipation system, eliminating the need for a single liquid cooling plate. This allows for multi-faceted heat dissipation of the battery cells, resulting in a larger thermal management contact surface and better performance, maximizing the suppression of the risk of thermal runaway. This application achieves integrated assembly and heat dissipation, allowing it to be installed inside the battery compartment of a ship. It achieves excellent disassembly, installation, and maintainability while also providing good heat dissipation, saving on tray manufacturing costs, and further promoting the marketization of inverted battery cells.

[0024] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0025] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0026] Figure 1 A three-dimensional structural schematic diagram of a heat dissipation mounting structure for an inverted battery cell according to an embodiment of the present invention is shown. Figure 1 ;

[0027] Figure 2 A three-dimensional structural schematic diagram of a heat dissipation mounting structure for an inverted battery cell according to an embodiment of the present invention is shown. Figure 2 ;

[0028] Figure 3 An exploded view of a heat dissipation mounting structure for an inverted battery cell according to an embodiment of the present invention is shown.

[0029] Figure 4 A three-dimensional cross-sectional view of a heat dissipation mounting structure for an inverted battery cell according to an embodiment of the present invention is shown.

[0030] Figure 5 This diagram shows a three-dimensional internal structure of a heat dissipation mounting structure for an inverted battery cell according to an embodiment of the present invention. Figure 1 ;

[0031] Figure 6 This diagram shows a three-dimensional internal structure of a heat dissipation mounting structure for an inverted battery cell according to an embodiment of the present invention. Figure 2 ;

[0032] Figure 7 A top view schematic diagram of a heat dissipation mounting structure for an inverted battery cell according to an embodiment of the present invention is shown.

[0033] Figure 8 A side view of a heat dissipation mounting structure for an inverted battery cell according to an embodiment of the present invention is shown.

[0034] Figure 9 It shows Figure 7 Schematic diagram of the structure in the AA direction;

[0035] Figure 10 It shows Figure 9 Enlarged structural diagram at point B;

[0036] Figure 11 A schematic diagram showing the coolant flow direction of a heat dissipation mounting structure for an inverted battery cell according to an embodiment of the present invention is provided.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. End plate; 2. Partition plate; 3. Support part; 4. Battery cell; 5. Cover plate; 6. Chamber; 7. Partition; 8. Tank; 9. First pipe; 91. Inlet; 92. Outlet; 10. Second pipe; 11. Mounting hole. Detailed Implementation

[0039] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0040] like Figures 1-3 and Figures 7-11 As shown, this utility model provides a heat dissipation mounting structure for an inverted battery cell, which includes:

[0041] Two end plates 1 are set at intervals;

[0042] At least two partitions 2 are spaced apart between two end plates 1. The two ends of the partitions 2 are connected to the two end plates 1 respectively. A receiving cavity is formed between two adjacent partitions 2. A support part 3 is formed on the inner side of the bottom of the receiving cavity. The inside of the receiving cavity is used to arrange multiple inverted battery cells 4. The support part 3 is used to support the inverted battery cells 4.

[0043] Cover plate 5 covers the top of the receiving cavity. Cover plate 5 is detachably connected to end plate 1. End plate 1, partition plate 2 and cover plate 5 are all provided with chambers 6 for coolant flow.

[0044] Specifically, to address the current issues of inverted battery cells being mounted on insulating trays, requiring adhesive to fix the cells to the trays, making later replacement and maintenance inconvenient, and the current layout of the liquid cooling plate resulting in only one side of the battery pack contacting the liquid cooling plate, leading to unsatisfactory thermal management, this invention provides a heat dissipation mounting structure for inverted battery cells. This structure features at least two partitions 2 spaced apart between two end plates 1, with each end of the partition 2 connected to one of the two end plates 1, forming a cavity for housing the battery cell 4. A support 3 supports the inverted battery cell 4, and a removable cover 5 limits its position. This eliminates the need for a tray, replacing the previous method of adhesive fixing between the battery cell and tray, allowing for easy removal and replacement of the battery cell 4 for maintenance, providing excellent disassembly, installation, and maintenance capabilities. Meanwhile, end plate 1, partition plate 2, and cover plate 5 form a comprehensive heat dissipation system, eliminating the need for the original single liquid cooling plate. This allows for multi-faceted heat dissipation of cell 4, resulting in a larger thermal management contact surface and better performance, thus maximizing the suppression of the risk of thermal runaway in cell 4. This application achieves integrated assembly and heat dissipation, allowing it to be installed inside the battery compartment of the ship. It provides excellent disassembly, installation, and maintenance while also offering good heat dissipation, saving on tray manufacturing costs, and further promoting the marketization of inverted cells.

[0045] like Figure 5 As shown, preferably, the support parts 3 are arranged in pairs and at least one pair is provided. The support parts 3 are strip-shaped, and each pair of support parts 3 is connected to the bottom of the two side partitions 2 of a receiving cavity.

[0046] Specifically, the battery cell 4 is placed upside down and supported by two strip-shaped support parts 3. At this time, the explosion-proof valve of the upside-down battery cell 4 faces downward and is between the two support parts 3, and the high-temperature and high-pressure gas generated inside the battery cell 4 can be quickly discharged downward.

[0047] Preferably, three partitions 2 are provided, and three pairs of support parts 3 are provided. The middle partition 2 and the support part 3 above it are integrally formed into an inverted T shape, and each outer partition 2 and the support part 3 above it are integrally formed into an L shape.

[0048] Specifically, the two shapes of the partition 2 are inverted T-shape and L-shape, which serve to support and fix the battery cell 4 and facilitate the flow of coolant.

[0049] like Figure 4 and Figure 9 As shown, preferably, multiple partitions 7 are arranged at intervals in both the cavity of the partition 2 and the cavity of the cover plate 5. The partitions 7 are arranged along the direction from one end plate 1 to the other end plate 1, and a flow channel is formed between two adjacent partitions 7.

[0050] Specifically, multiple partitions 7 are installed in the cavity of the partition 2, and their cross-sections are in the shape of a harmonica tube. Multiple partitions 7 are also installed in the cavity of the cover plate 5, and their cross-sections are also in the shape of a harmonica tube. The purpose is to facilitate the flow of coolant within them.

[0051] like Figure 6 As shown, preferably, the end plate 2 is provided with a groove 8 at the position for connecting with the partition 2, and the inner side of the groove 8 is provided with a slot hole communicating with the cavity of the end plate 1. The groove 8 is connected to each flow channel of the partition 2.

[0052] Specifically, the tank 8 is used to connect with each flow channel of the baffle 2, and the slot is used to connect the tank 8 with the chamber of the end plate 1, thereby realizing the flow of coolant.

[0053] Preferably, the partition 7 inside the cavity of the cover plate 5 has gaps between its two ends and the two ends of the cover plate 5.

[0054] Specifically, the gaps allow for the connection of multiple flow channels within the cavity of the cover plate 5, thereby enabling the flow of coolant.

[0055] Preferably, the heat dissipation mounting structure for the inverted battery cell further includes:

[0056] Two first tubes 9, and a first hole is provided on the cover plate 5 near the two end plates 1. One end of the two first tubes 9 is connected to the two first holes respectively.

[0057] like Figure 1 and Figure 11 As shown, there are two second tubes 10 and two end plates 1, each with a second hole. One end of each of the two second tubes 10 is connected to the two second holes respectively, and the first tube 9 and the second tube 10 that are close to each other are connected.

[0058] Specifically, the other ends of the two first pipes 9 are respectively set as inlet 91 and outlet 92, and the first pipes 9 and the second pipe 10 that are close to each other can be connected by a three-way valve.

[0059] Preferably, the cover plate 5 is provided with mounting holes 11 for connecting to the end plate 1, and the end plate 1 is provided with mounting holes 11 for connecting to the housing of the battery pack.

[0060] Specifically, the end plate 1 is inverted T-shaped, and the mounting holes 11 are located on the protruding positions on both sides of the end plate 1. The mounting holes 11, together with screws, connect the cover plate 5 to the end plate 1 and connect the end plate 1 to the battery pack housing.

[0061] Preferably, the cover plate 5, end plate 1 and partition plate 2 are all made of aluminum profile plates, and the surfaces of the cover plate 5, end plate 1 and partition plate 2 are all provided with an insulating layer.

[0062] Specifically, the surfaces of the cover plate 5, end plate 1, and partition plate 2 facing the cell 4 are provided with an insulating layer, which can be an insulating varnish layer formed by spraying or an insulating pad layer.

[0063] Preferably, the end plate 1, the partition 2, the partition, the first pipe 9, and the second pipe 10 are welded together.

[0064] Specifically, end plate 1, partition plate 2, first tube 9 and second tube 10 are assembled into an integral component using laser welding technology. Then, the battery cell 2 is placed into this component with the battery cell explosion-proof valve facing down. After the battery cell 4 is installed, the cover plate 5 is closed. The cover plate 5 is fixed to the two end plates 1 with screws.

[0065] A battery module comprising:

[0066] Heat dissipation mounting structure for inverted battery cells;

[0067] Multiple battery cells 4 are arranged upside down inside the cavity.

[0068] A battery pack comprising:

[0069] The casing is used to connect to the inside of the battery compartment in the hull;

[0070] The battery module is detachably connected inside the housing.

[0071] In summary, when the battery module formed by the thermal management assembly structure of this utility model is applied to the battery pack, the cover plate 5, end plate 1, and partition plate 2 of the heat dissipation installation structure of the inverted cell are all made of aluminum profile plates and all have an insulating layer on their surfaces. The cross-sectional shape of the cover plate 5 and the partition plate 2 is harmonica tube type, which facilitates the flow of coolant. The two shapes of the partition plate 2 are inverted T-shape and L-shape, which serve to support and fix the cell 4 while allowing the coolant to flow. The end plate 1, partition plate 2, first tube 9, and second tube 10 are assembled into an integral component using laser welding technology. Then, the cell 2 is placed in this component with the cell explosion-proof valve facing downwards. After the cell 4 is installed, the cover plate 5 is closed. The cover plate 5 is fixed to the two end plates 1 by screws. The first tube 9 and the second tube 10, which are close to each other, can be connected by a three-way valve. Finally, after the battery module is assembled, it is fixed to the lower shell of the battery pack by screws. This application integrates assembly and heat dissipation, achieving good disassembly, installation and maintenance while also providing excellent heat dissipation, and saving on tray manufacturing costs, further promoting the marketization of inverted cells.

[0072] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A heat dissipating mounting structure of an inverted battery cell, characterized by comprising: The heat dissipation mounting structure of the inverted battery cell includes: Two end plates, which are spaced apart; At least two partitions are spaced apart between two end plates. The two ends of each partition are connected to the two end plates respectively. A receiving cavity is formed between two adjacent partitions. A support portion is formed on the inner bottom side of the receiving cavity. The interior of the receiving cavity is used to arrange multiple inverted battery cells. The support portion is used to support the inverted battery cells. A cover plate covers the top of the receiving cavity and is detachably connected to the end plate. The end plate, the partition, and the cover plate are all provided with chambers for coolant flow.

2. The heat dissipation mounting structure for an inverted battery cell according to claim 1, characterized in that, The support parts are arranged in pairs, and at least one pair is provided. The support parts are strip-shaped, and each pair of support parts is respectively connected to the bottom of the two side partitions of the receiving cavity.

3. The heat dissipation mounting structure for an inverted battery cell according to claim 2, characterized in that, The partition is provided in three parts, and the support is provided in three pairs. The middle partition and the support above it are integrally formed into an inverted T shape, and each outer partition and the support above it are integrally formed into an L shape.

4. The heat dissipation mounting structure for an inverted battery cell according to claim 1, characterized in that, Multiple partitions are arranged at intervals in both the cavity of the partition plate and the cavity of the cover plate. The partitions are arranged along one end plate to the other end plate, and a flow channel is formed between two adjacent partitions.

5. The heat dissipation mounting structure for an inverted battery cell according to claim 4, characterized in that, The end plate is provided with a groove at the position for connecting with the partition, and the inner side of the groove is provided with a slot hole communicating with the cavity of the end plate. The groove is connected to each of the flow channels of the partition.

6. The heat dissipation mounting structure for an inverted battery cell according to claim 4, characterized in that, The heat dissipation mounting structure of the inverted battery cell also includes: Two first tubes are provided, and the cover plate is provided with a first hole near the two end plates. One end of the two first tubes is respectively connected to the two first holes. Two second tubes are provided, and two end plates are provided with second holes. One end of each of the two second tubes is connected to the two second holes respectively, and the first tube and the second tube that are close to each other are connected.

7. The heat dissipation mounting structure for an inverted battery cell according to claim 1, characterized in that, The cover plate is provided with mounting holes for connection to the end plate, and the end plate is provided with mounting holes for connection to the battery pack housing.

8. The heat dissipation mounting structure for an inverted battery cell according to claim 1, characterized in that, The cover plate, the end plate, and the partition are all made of aluminum profile plates, and the surfaces of the cover plate, the end plate, and the partition are all provided with an insulating layer.

9. A battery module, characterized in that, The battery module includes: A heat dissipation mounting structure for an inverted battery cell according to any one of claims 1-8; Multiple battery cells are arranged upside down inside the cavity.

10. A battery pack, characterized in that, The battery pack includes: A housing for connection to the battery compartment inside the hull; A battery module according to claim 9 is detachably connected within the housing.

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