CN219892241U - Bionic liquid cooling device for balanced heat dissipation of lithium ion battery - Google Patents
Bionic liquid cooling device for balanced heat dissipation of lithium ion battery Download PDFInfo
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- CN219892241U CN219892241U CN202320440030.9U CN202320440030U CN219892241U CN 219892241 U CN219892241 U CN 219892241U CN 202320440030 U CN202320440030 U CN 202320440030U CN 219892241 U CN219892241 U CN 219892241U
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- ion battery
- liquid cooling
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- 239000007788 liquid Substances 0.000 title claims abstract description 118
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 56
- 238000001816 cooling Methods 0.000 title claims abstract description 54
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 24
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 19
- 239000000110 cooling liquid Substances 0.000 claims abstract description 24
- 239000000178 monomer Substances 0.000 claims abstract description 8
- 210000003462 vein Anatomy 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a bionic liquid cooling device for balanced heat dissipation of a lithium ion battery, and belongs to the technical field of battery thermal management. Including lithium ion battery group, heat conduction board group and liquid cooling board group, lithium ion battery group contains polylith monomer lithium ion battery, and the heat conduction board group contains polylith monomer heat conduction board, and liquid cooling board group contains two monomer liquid cooling boards, and the monomer liquid cooling board includes roof and bottom plate, designs on the bottom plate has the runner, comprises a inlet, a liquid outlet, a feed liquor passageway, a liquid outlet passageway and a plurality of tributary passageway, and the tributary passageway is similar branch vein bifurcation structure. According to the utility model, the liquid cooling plate flow channel adopts a branch and leaf vein bionic topological structure, and compared with the traditional flow channel structure, under the condition that the flow rate of the cooling liquid is the same, the flow rate distribution of the cooling liquid in each branch flow channel is more uniform, the heat dissipation of the lithium ion battery pack is more uniform, the temperature difference of the lithium ion battery pack can be reduced, and the highest temperature of the lithium ion battery pack is in the optimal working temperature range.
Description
Technical Field
The utility model relates to a bionic liquid cooling device for balanced heat dissipation of a lithium ion battery, and belongs to the technical field of battery thermal management.
Background
With the development of new energy technology, the lithium battery gradually replaces the traditional fuel as a main power source of the automobile, but the heat dissipation problem of the lithium ion battery becomes difficult due to the fact that the lithium ion battery is compactly installed in a narrow space. According to the current research, the optimal operating temperature range of the lithium ion battery is 20 ℃ to 40 ℃, and the maximum temperature difference of the lithium ion battery pack cannot exceed 5 ℃. Excessive temperature differences can lead to degradation of lithium ion battery life and even possible thermal runaway of the lithium ion battery. In the existing heat dissipation mode, the liquid cooling cold plate is an efficient and stable heat dissipation mode, and the cooling liquid flows through the flow channels in the liquid cooling plate to take away heat, so that the flow channel design in the liquid cooling plate is a key factor for determining the performance of the liquid cooling plate. The traditional liquid cooling plate is mainly composed of parallel, serpentine and other flow channels. The traditional flow channel can keep the lithium ion battery pack in the optimal working range by adjusting the flow of the cooling liquid, but the situation of uneven flow distribution often occurs due to unreasonable structural design of the traditional flow channel, so that the temperature of the battery in the lithium ion battery pack is lower, and the temperature of part of the lithium ion battery is higher. Although all are within the optimal operating temperature range, a large temperature difference occurs in the lithium ion battery pack.
Therefore, it is necessary to develop a bionic liquid cooling device capable of ensuring balanced heat dissipation of the lithium ion battery pack.
Disclosure of Invention
The utility model aims to provide a bionic liquid cooling device for balanced heat dissipation of a lithium ion battery, which has the advantage of good heat dissipation uniformity.
The utility model adopts the following technical scheme to realize the purposes: the bionic liquid cooling device for balanced heat dissipation of the lithium ion battery comprises a lithium ion battery pack 1, a heat conducting plate group 2 and a liquid cooling plate group 3, wherein the lithium ion battery pack 1 comprises a plurality of single lithium ion batteries 10, the heat conducting plate group 2 comprises a plurality of single heat conducting plates 20, the liquid cooling plate group 3 comprises two single liquid cooling plates 30, the single lithium ion batteries 10 and the single heat conducting plates 20 are arranged in a crossing manner in the Z direction, and the single liquid cooling plates 30 are arranged on two sides of the battery pack 1 and the heat conducting plate group 2 in the X direction;
the monomer liquid cooling plate 30 comprises a top plate 301 and a bottom plate 302 which are fixed together, a liquid inlet 3021 and a liquid outlet 3022 are designed on the bottom plate 302, and a runner similar to a branch and leaf bifurcation structure is arranged between the liquid inlet 3021 and the liquid outlet 3022.
Specifically, the flow channel similar to the branch-and-leaf vein bifurcation structure includes one liquid inlet channel 3023, one liquid outlet channel 3028, and a plurality of branch flow channels, where the plurality of branch flow channels includes a first branch flow channel 3024, a second branch flow channel 3025, a third branch flow channel 3026, and a fourth branch flow channel 3027, the liquid inlet port 3021 is in communication with the liquid inlet channel 3023, the liquid inlet channel 3023 is in communication with each first branch flow channel 3024, each first branch flow channel 3024 is in communication with each adjacent second branch flow channel 3025, each second branch flow channel 3025 is in communication with each adjacent third branch flow channel 3026, each third branch flow channel 3026 is in communication with each adjacent fourth branch flow channel 3027, each fourth branch flow channel 3027 is in communication with the liquid outlet channel 3028, and the liquid outlet channel 3028 is in communication with the liquid outlet port 3022.
Preferably, the liquid inlet 3021 and the liquid outlet 3022 are respectively located at two sides of the bottom plate 302 in the Z direction.
Preferably, the number of the first branch passages 3024 is 3, the number of the second branch passages 3025 is 24, the number of the third branch passages 3026 is 6, and the number of the fourth branch passages 3027 is 3.
Preferably, the liquid inlet channel 3023 has a width a (a 1 、A 2 、A 3 )，A(A 1 、A 2 、A 3 ) Is gradually reduced in the direction of the flow of the cooling liquid in the liquid inlet passage 3023, A (A) 1 、A 2 、A 3 ) Conform to A n+1 ＝A n ÷3×2，A 1 Selected in the range of 18mm to 40mm, the first branch passage 3024 has a width B (B) 1 、B 2 、B 3 、B 4 、B 5 )，B(B 1 、B 2 、B 3 、B 4 、B 5 ) Is reduced stepwise in the direction of the flow of the cooling liquid in the first branch passage 3024, B (B) 1 、B 2 、B 3 、B 4 、B 5 ) Conform to B n+1 ＝B n -1，B 1 ＝A 1 3, the second branch passage 3025 has a width C, which corresponds to c=0.5×b 1 The third branch passage 3026 has a width D, which corresponds to d=b 1 The fourth branch passage 3027 has a width E, E conforming to e=b 1 The liquid outlet passage 3028 has a width F (F) 1 、F 2 、F 3 )，F 1 、F 2 、F 3 Progressively increasing in the direction of flow of the cooling liquid in the liquid outlet passage 3028, F (F) 1 、F 2 、F 3 ) Conform to F n ＝A n 。
Specifically, the included angle between the liquid inlet channel 3023 and the first branch channel 3024 is α 1 The first branch passage 3024 and the second branch passage 3025 have an angle α 2 ，α 1 Equal to alpha 2 ，α 1 And alpha 2 Is selected from 30-45 degrees.
Preferably, the thickness of the top plate 301 is selected in the range of 0.5mm to 4mm, the thickness of the bottom plate 302 is selected in the range of 2.5 mm to 10mm, and the processing depth of the flow channel on the bottom plate 302 is smaller than the thickness of the bottom plate 302.
Preferably, the heat conducting plate group 2 and the liquid cooling plate group 3 are both processed by adopting aluminum alloy materials, and the thickness of the single heat conducting plate 20 in the Z direction is selected in the range of 1 mm-4 mm.
The utility model has the beneficial effects that: according to the utility model, the liquid cooling plate flow channel adopts a branch and leaf vein bionic topological structure, and compared with the traditional flow channel structure, under the condition that the flow rate of the cooling liquid is the same, the flow rate distribution of the cooling liquid in each branch flow channel is more uniform, so that the heat dissipation of the lithium battery is more uniform, the temperature difference of the lithium battery is reduced, and meanwhile, the highest temperature of the lithium battery is kept within the optimal working temperature range.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an exploded view of the overall structure of the present utility model;
FIG. 3 is a schematic diagram of a single lithium ion battery;
FIG. 4 is a schematic view of a unitary thermally conductive plate of the present utility model;
FIG. 5 is a schematic diagram of a monomer liquid cooling plate according to the present utility model;
FIG. 6 is an exploded view of a monomer liquid cooling plate according to the present utility model;
FIG. 7 is a schematic view of a base plate of the present utility model;
FIG. 8 is a schematic view of a flow channel in a base plate of the present utility model;
FIG. 9 is a schematic view of the width dimensions of the flow channels in the bottom plate of the present utility model;
FIG. 10 is a schematic view of coolant flow through flow channels in a base plate of the present utility model.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by the designer in the art without making any inventive effort, are within the scope of the present utility model based on the embodiments of the present utility model.
Example 1: according to fig. 1 to 5, a bionic liquid cooling device for balanced heat dissipation of a lithium ion battery comprises a lithium ion battery pack 1, a heat conducting plate pack 2 and a liquid cooling plate pack 3, wherein the lithium ion battery pack 1 comprises a plurality of single lithium ion batteries 10, the heat conducting plate pack comprises a plurality of single heat conducting plates 20, the liquid cooling plate pack 3 comprises two single liquid cooling plates 30, the single lithium ion batteries 10 and the single heat conducting plates 20 are arranged in a crossing manner in the Z direction, the surfaces of the Z directions are mutually attached, the single liquid cooling plates 30 are placed on two sides of the X direction of the lithium ion battery pack 1 and the heat conducting plate pack 2, and the inner surfaces of the X directions are mutually attached.
Specifically, referring to fig. 5 to 8, the single liquid cooling plate 30 includes a top plate 301 and a bottom plate 302, and is characterized in that the top plate 301 and the bottom plate 302 are fixedly connected by welding, and a runner is designed on the bottom plate 302, and the runner is composed of a liquid inlet 3021, a liquid outlet 3022, a liquid inlet channel 3023, a liquid outlet channel 3028 and a plurality of branch channels, and the plurality of branch channels are similar to branch and leaf vein bifurcation structures.
Specifically, referring to fig. 7, the liquid inlet 3021 and the liquid outlet 3022 are respectively located at two sides of the bottom plate 302 in the Z direction, and the specific positions may be reasonably selected according to the actual working conditions; in this embodiment, the liquid inlet 3021 is located at the top corner, and the liquid outlet 3032 is located at the bottom corner.
Specifically, referring to fig. 8, the plurality of branch passages includes a first branch passage 3024, a second branch passage 3025, a third branch passage 3026, and a fourth branch passage 3027.
Specifically, referring to fig. 9, the number of the first branch passages 3024 is 3, the number of the second branch passages 3025 is 24, the number of the third branch passages 3026 is 6, and the number of the fourth branch passages 3027 is 3;
specifically, referring to fig. 8, the liquid inlet 3021 communicates with the liquid inlet channel 3023, the liquid inlet channel 3023 communicates with each first branch channel 3024, each first branch channel 3024 communicates with each adjacent second branch channel 3025, each second branch channel 3025 communicates with each adjacent third branch channel 3026, each third branch channel 3026 communicates with each adjacent fourth branch channel 3027, each fourth branch channel 3027 communicates with the liquid outlet channel 3028, and the liquid outlet channel 3028 communicates with the liquid outlet port 3022.
Specifically, referring to fig. 9 and 10, the liquid inlet channel 3023 has a width a (a 1 、A 2 、A 3 ) The A (A) 1 、A 2 、A 3 ) Is reduced stepwise in the direction of the flow of the cooling liquid in the liquid inlet passage 3023, the a (a 1 、A 2 、A 3 ) Conform to A n+1 ＝A n ÷3×2，A 1 Selected from the range of 18mm to 40mm, the first branch passage 3024 has a width B (B) 1 、B 2 、B 3 、B 4 、B 5 ) The B (B) 1 、B 2 、B 3 、B 4 、B 5 ) Which is stepwise reduced in the direction of the flow of the cooling liquid in the first branch passage 3024, the B (B 1 、B 2 、B 3 、B 4 、B 5 ) Conform to B n+1 ＝B n -1，B 1 ＝A 1 3, the second branch passage 3025 has a width C, which corresponds to c=0.5×b 1 The third branch passage 3026 has a width D, and D corresponds to d=b 1 The fourth tributary channel 3027 has a width E, and E corresponds to e=b 1 The liquid outlet passage 3028 has a width F (F) 1 、F 2 、F 3 ) Said F (F) 1 、F 2 、F 3 ) Progressively increasing in the direction of coolant flow in the liquid outlet passage 3028, the flow of the fluid, F (F 1 、F 2 、F 3 ) Conform to F n ＝A n The method comprises the steps of carrying out a first treatment on the surface of the In this example, the A is selected 1 18mm, then it can be calculated by: the A is 2 12mm, said A 3 6mm, said B 1 6mm, said B 2 5mm, said B 3 4mm, B 4 3mm, B 5 2mm, C3 mm, D6 mm, E6 mm, F 1 18mm, said F 2 12mm, said F 3 6mm.
Specifically, referring to fig. 9, an included angle between the liquid inlet channel 3023 and the first tributary channel 3024 is α 1 An angle between the first branch passage 3024 and the second branch passage 3025 is α 2 Said alpha is 1 Equal to said alpha 2 Said alpha is 1 And said alpha 2 Can be selected from 30-45 degrees according to actual requirements; in this example, select α 1 ＝d 2 ＝30°。
Specifically, referring to fig. 6, the thickness of the top plate 301 is selected in the range of 0.5mm to 4mm, the thickness of the bottom plate 302 is selected in the range of 2.5 mm to 10mm, and the processing depth of the flow channel on the bottom plate 302 needs to be selected according to the heating value of the lithium ion battery pack, but is smaller than the thickness of the bottom plate 302; in this example, the thickness of the top plate 301 is selected to be 2mm, the thickness of the bottom plate 302 is selected to be 8mm, and the processing depth of the flow channel is selected to be 6mm.
Specifically, referring to fig. 2 and fig. 4, the heat conducting plate group 2 and the liquid cooling plate group 3 are both made of aluminum alloy materials, and the thickness of the single heat conducting plate 20 in the Z direction is selected in the range of 1 mm-4 mm; the thickness of the single thermal conductive plate 20 in the Z direction was selected to be 1mm in this example.
The working principle of the utility model is as follows: when the bionic liquid cooling device for balanced heat dissipation of the lithium ion battery works, heat emitted by the lithium ion battery pack 1 is transferred to the liquid cooling plate set 3 through the heat conducting plate set 2, then the heat is taken away by cooling liquid in the liquid cooling plate set 3, the cooling liquid flows into the liquid inlet channel 3023 through the liquid inlet port 3021, the cooling liquid in the liquid inlet channel 3023 flows into the three first branch channels 3024, the cooling liquid in each first branch channel 3024 flows into each adjacent second branch channel 3025, the cooling liquid in each second branch channel 3025 flows into the adjacent third branch channel 3026, the cooling liquid in each third branch channel 3026 flows into the adjacent fourth branch channel 3027, the cooling liquid in each fourth branch channel 3027 flows into the liquid outlet channel 3028, and the cooling liquid in the liquid outlet channel 3028 flows out through the liquid outlet port 3022.
Because the liquid cooling plate flow channel adopts the branch-vein-like bionic topological structure, under the condition that the flow rate of the cooling liquid is the same, compared with the traditional flow channel structure, the flow rate distribution of the cooling liquid in each branch flow channel is more uniform, so that the heat dissipation of the lithium ion battery pack is more uniform, the temperature difference of the lithium ion battery pack is reduced, and meanwhile, the highest temperature of the lithium ion battery pack is kept within the optimal working temperature range.
In the present utility model, the x direction, the Y direction, and the Z direction refer to the x direction, the Y direction, and the Z direction in the cartesian coordinate system, where the x direction in the same coordinate system is the width direction of the single lithium ion battery 10, the single heat-conducting plate 20, and the thickness direction of the single liquid cooling plate 30, the Y direction is the height direction of the single lithium ion battery 10, the single heat-conducting plate 20, and the single liquid cooling plate 30, and the Z direction is the thickness direction of the single lithium ion battery 10, the single heat-conducting plate 20, and the width direction of the single liquid cooling plate 30.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. A bionical liquid cooling device for balanced heat dissipation of lithium ion battery, its characterized in that: the lithium ion battery pack comprises a lithium ion battery pack (1), a heat conducting plate pack (2) and a liquid cooling plate pack (3), wherein the lithium ion battery pack (1) comprises a plurality of single lithium ion batteries (10), the heat conducting plate pack (2) comprises a plurality of single heat conducting plates (20), the liquid cooling plate pack (3) comprises two single liquid cooling plates (30), the single lithium ion batteries (10) and the single heat conducting plates (20) are arranged in a crossing manner in the Z direction, and the single liquid cooling plates (30) are arranged on two sides of the battery pack (1) and the heat conducting plate pack (2) in the X direction;
the monomer liquid cooling plate (30) comprises a top plate (301) and a bottom plate (302) which are fixed together, a liquid inlet (3021) and a liquid outlet (3022) are formed in the bottom plate (302), and a runner similar to a branch and leaf vein bifurcation structure is arranged between the liquid inlet (3021) and the liquid outlet (3022).
2. The bionic liquid cooling device for balanced heat dissipation of a lithium ion battery according to claim 1, wherein: the flow channel similar to the branch vein bifurcation structure comprises a liquid inlet channel (3023), a liquid outlet channel (3028) and a plurality of branch flow channels, wherein the plurality of branch flow channels comprise a first branch flow channel (3024), a second branch flow channel (3025), a third branch flow channel (3026) and a fourth branch flow channel (3027), the liquid inlet (3021) is communicated with the liquid inlet channel (3023), the liquid inlet channel (3023) is communicated with each first branch flow channel (3024), each first branch flow channel (3024) is communicated with each second branch flow channel (3025) which is adjacent, each second branch flow channel (3025) is communicated with each third branch flow channel (3026) which is adjacent, each third branch flow channel (3026) is communicated with each fourth branch flow channel (3027) which is adjacent, each fourth branch flow channel (3027) is communicated with the liquid outlet channel (3028), and the liquid outlet (3022) is communicated with each other.
3. The bionic liquid cooling device for balanced heat dissipation of a lithium ion battery according to claim 1 or 2, wherein: the liquid inlet (3021) and the liquid outlet (3022) are respectively arranged at two sides of the bottom plate (302) in the Z direction.
4. The bionic liquid cooling device for balanced heat dissipation of a lithium ion battery according to claim 2, wherein: the number of the first branch passages (3024) is 3, the number of the second branch passages (3025) is 24, the number of the third branch passages (3026) is 6, and the number of the fourth branch passages (3027) is 3.
5. The bionic liquid cooling device for balanced heat dissipation of a lithium ion battery according to claim 4, wherein: the width of the liquid inlet channel (3023) is A respectively 1 、A 2 、A 3 ，A 1 、A 2 、A 3 Gradually reduces along the flowing direction of the cooling liquid in the liquid inlet channel (3023), A 1 、A 2 、A 3 Conform to A n+1 ＝A n ÷3×2，A 1 Selected within the range of 18 mm-40 mm, the widths of the first branch passages (3024) are respectively B 1 、B 2 、B 3 、B 4 、B 5 ，B 1 、B 2 、B 3 、B 4 、B 5 And B is gradually reduced along the flow direction of the cooling liquid in the first branch passage (3024) 1 、B 2 、B 3 、B 4 、B 5 Conform to B n+1 ＝B n -1，B 1 ＝A 1 3, the second branch passage (3025) has a width C, which corresponds to c=0.5×b 1 The third branch passage (3026) has a width D, which corresponds to d=b 1 The fourth branch passage (3027) has a width E, E conforming to e=b 1 The width of the liquid outlet channel (3028) is F respectively 1 、F 2 、F 3 ，F 1 、F 2 、F 3 Is gradually increased along the flowing direction of the cooling liquid in the liquid outlet channel (3028), F 1 、F 2 、F 3 Conform to F n ＝A n 。
6. The bionic liquid cooling device for balanced heat dissipation of a lithium ion battery according to claim 4, wherein: an included angle between the liquid inlet channel (3023) and the first branch channel (3024) is alpha 1 An angle between the first branch passage (3024) and the second branch passage (3025) is alpha 2 ，α 1 Equal to alpha 2 ，α 1 And alpha 2 Is selected from 30-45 degrees.
7. The bionic liquid cooling device for balanced heat dissipation of a lithium ion battery according to claim 1, wherein: the thickness of the top plate (301) is selected in the range of 0.5-4 mm, the thickness of the bottom plate (302) is selected in the range of 2.5-10 mm, and the processing depth of a runner on the bottom plate (302) is smaller than the thickness of the bottom plate (302).
8. The bionic liquid cooling device for balanced heat dissipation of a lithium ion battery according to claim 1, wherein: the heat conducting plate group (2) and the liquid cooling plate group (3) are both made of aluminum alloy materials, and the thickness of the single heat conducting plate (20) in the Z direction is selected within the range of 1 mm-4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320440030.9U CN219892241U (en) | 2023-03-09 | 2023-03-09 | Bionic liquid cooling device for balanced heat dissipation of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320440030.9U CN219892241U (en) | 2023-03-09 | 2023-03-09 | Bionic liquid cooling device for balanced heat dissipation of lithium ion battery |
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| CN219892241U true CN219892241U (en) | 2023-10-24 |
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| CN202320440030.9U Active CN219892241U (en) | 2023-03-09 | 2023-03-09 | Bionic liquid cooling device for balanced heat dissipation of lithium ion battery |
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