CN223108972U - A cooling assembly for a battery pack and a battery pack - Google Patents
A cooling assembly for a battery pack and a battery packInfo
- Publication number
- CN223108972U CN223108972U CN202421948718.9U CN202421948718U CN223108972U CN 223108972 U CN223108972 U CN 223108972U CN 202421948718 U CN202421948718 U CN 202421948718U CN 223108972 U CN223108972 U CN 223108972U
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- CN
- China
- Prior art keywords
- air duct
- cooling
- air
- battery pack
- cold plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application relates to a cooling component of a battery pack and the battery pack, wherein the cooling component comprises a box body and a cold plate, the cold plate is arranged in the box body and is provided with a containing cavity and an air duct, the containing cavity contains cooling medium, and the air duct penetrates through the cold plate; the box has air intake and air outlet, and the wind channel communicates with air intake and air outlet. In the application, the cooling medium in the accommodating cavity can absorb heat generated by the battery cell, thereby reducing the temperature of the battery cell. External wind flows into the air duct from the air inlet and flows out from the air outlet after flowing through the air duct. In the process, the temperature of wind flowing into the air duct from the air inlet is low, and the temperature of wind flowing out of the air outlet is high after the heat from the battery cell is absorbed in the air duct, so that the heat generated by the battery cell is carried away by the wind flowing continuously from the outside. Through setting up liquid cooling and two kinds of cooling methods of forced air cooling for electric core during operation temperature can not be too high, can not influence the life-span of electric core, and make electric core can not take place thermal runaway, and then improved the security of battery package.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a cooling assembly of a battery pack and the battery pack.
Background
With the development of new energy industries, batteries are increasingly used in the fields of vehicles, energy storage and the like. The battery can generate heat in the working process, and when the temperature of the battery is high, the working efficiency and the service life of the battery can be influenced, and even thermal runaway is caused.
At present, the heat management of the small power battery is generally carried out only through natural cooling, and the cooling effect is poor.
Disclosure of utility model
The application provides a cooling assembly of a battery pack and the battery pack, which are used for solving the problems that the cooling effect of a battery is poor and the working efficiency and the service life of the battery are influenced.
The cooling assembly comprises a box body and a cold plate, wherein the cold plate is arranged in the box body, the cold plate is provided with a containing cavity and an air duct, a cooling medium is contained in the containing cavity, the air duct penetrates through the cold plate, the box body is provided with an air inlet and an air outlet, and the air duct is communicated with the air inlet and the air outlet.
In one possible design, the cold plate has a hollow structure, the interior of which forms the receiving cavity.
In one possible design, the cold plate includes an air inlet portion in communication with the air inlet, a transition portion joining the air inlet portion with the cooling portion such that air flows from the air inlet portion to the cooling portion.
In one possible design, the air duct includes a first air duct, a second air duct, and a third air duct that are sequentially communicated, the first air duct is disposed in the air intake portion, the second air duct is disposed in the transition portion, and the third air duct is disposed in the cooling portion.
In one possible embodiment, the cooling part has a through channel, wherein the direction of extension of the channel is the same as the direction of extension of the third air duct, and the transition part and the channel enclose the hollow structure
In one possible design, the first air duct includes a first sub air duct and a second sub air duct that are in communication, and the extending directions of the first sub air duct and the second sub air duct are different so as to guide the air flowing from the air inlet portion to the cooling portion.
In one possible design, the cold plate has a heat sink located on a side of the receiving cavity adjacent to the third air duct.
In one possible design, the heat sink includes a plurality of protrusions protruding into the interior of the receiving cavity.
In one possible design, the tank body is provided with a liquid injection port, the liquid injection port is communicated with the containing cavity, and the cooling assembly further comprises a blocking piece which can block the liquid injection port.
The battery pack comprises a battery core and a cooling assembly, wherein the cooling assembly is the cooling assembly.
In the application, the cooling liquid in the accommodating cavity can absorb heat generated by the battery cell, so that the temperature of the battery cell is reduced. Further, the cooling liquid can change phase when the temperature is higher, and is converted from a liquid state to a gas state, so that more heat is absorbed, and the cooling effect of the cooling assembly is better. The air duct is communicated with the air inlet and the air outlet, so that the air flows in the air duct from the air inlet, and flows out of the air outlet after flowing through the air duct. In the process that the air flows through the cold plate, the temperature of the air flowing into the air duct from the air inlet is low, and after the heat from the battery cell is absorbed in the air duct, the temperature of the air flowing out from the air outlet is high, so that the heat generated by the battery cell is carried away by the air flowing continuously from the outside. Simultaneously, the outside wind flows through the air duct to reduce the temperature of the cold plate, and the cooling liquid which is converted into a gas state is converted into a liquid state again so as to repeatedly absorb the heat emitted by the battery cell. That is, after the heat generated by the battery core is taken away by the cold plate, one part of the heat is directly taken away by the flowing air in an air cooling mode, the other part of the heat is absorbed by the cooling liquid in a liquid cooling mode, and after the cooling liquid becomes gaseous, the heat of the cooling liquid can be taken away by the flowing air, so that the cooling liquid becomes liquid again. Through setting up liquid cooling and two kinds of cooling methods of forced air cooling for the battery cell during operation temperature can not be too high, thereby can not influence the life-span of battery cell, and make the battery cell can not take place thermal runaway, and then improved the security of battery package. Meanwhile, the cooling effect of the liquid cooling and air cooling combined mode is good, and when the battery pack is used for a vehicle, an external whole vehicle thermal management system is not needed, so that the design difficulty of the thermal management system is reduced, and the battery pack and the vehicle body are convenient to assemble. In other words, such a cooling assembly design is particularly suitable for small power battery packs, such as those of electric motorcycles, unmanned aerial vehicles, and the like.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
FIG. 1 is a schematic view of a battery pack according to an embodiment of the present application;
fig. 2 is a schematic view of the battery pack of fig. 1 from another view;
fig. 3 is an exploded view of the battery pack of fig. 1;
FIG. 4 is a cross-sectional view of the cooling assembly of FIG. 3;
FIG. 5 is an enlarged view of a portion of region I of FIG. 3;
FIG. 6 is a schematic view of the cold plate of FIG. 3;
FIG. 7 is an exploded view of the cold plate of FIG. 6;
FIG. 8 is an enlarged partial view of region II of FIG. 7
Fig. 9 is a cross-sectional view of the cold plate of fig. 7.
Reference numerals:
1-a box body;
11-a liquid injection port;
12-an air inlet;
13-an air outlet;
2-cooling plates;
2 a-a receiving cavity;
2 b-an air duct;
21-an air inlet part;
211-a first air duct;
211 a-a first sub-stack;
211 b-a second sub-stack;
212-avoiding grooves;
22-transition;
221-a second air duct;
23-a cooling section;
231-a third air duct;
232-channel;
233-a heat sink;
3-a blocking piece;
4-an electric core;
5-an electrical component;
6-case cover.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Detailed Description
For a better understanding of the technical solution of the present application, the following detailed description of the embodiments of the present application refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely an association relationship describing the associated object, and means that there may be three relationships, e.g., a and/or B, and that there may be three cases where a exists alone, while a and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.
The application provides a battery pack, which is shown in fig. 1-3, and comprises a battery core 4 and a cooling assembly, wherein the cooling assembly comprises a box body 1 and a cooling plate 2, and the battery core 4 is arranged in the cooling assembly. The cooling assembly can reduce the temperature of the battery cell 4, so that the battery cell 4 works at a proper temperature, thereby ensuring that the battery cell 4 has higher working efficiency and longer service life and can not generate thermal runaway.
As shown in fig. 3, the battery pack further includes an electrical component 5, and the electrical component 5 can collect voltage and temperature information of the battery cell 4, thereby monitoring the condition of the battery cell 4.
The application provides a cooling assembly, which is shown in fig. 3 and 4, and comprises a box body 1 and a cold plate 2, wherein the cold plate 2 is arranged in the box body 1, the cold plate 2 is provided with a containing cavity 2a and an air duct 2b, a cooling medium is contained in the containing cavity 2a, the air duct 2b penetrates through the cold plate 2, the box body 1 is provided with an air inlet 12 and an air outlet 13, and the air duct 2b is communicated with the air inlet 12 and the air outlet 13. The cooling medium may be a cooling liquid or a coolant, and is preferably a cooling liquid. The air inlet 12 and the air outlet 13 are arranged on two opposite side walls of the box body 1. The shapes of the air inlet 12 and the air outlet 13 can be square, round, diamond, etc., and the application does not limit the shapes of the air inlet 12 and the air outlet 13.
As shown in fig. 3 and 4, the cooling liquid in the accommodating chamber 2a can absorb heat generated from the battery cell 4, thereby lowering the temperature of the battery cell 4. Further, the cooling liquid can change phase when the temperature is higher, and is converted from a liquid state to a gas state, so that more heat is absorbed, and the cooling effect of the cooling assembly is better.
The air duct 2b is communicated with the air inlet 12 and the air outlet 13, so that the air flows in the air duct 2b from the air inlet 12 and then flows out of the air outlet 13 after flowing through the air duct 2 b. During the process of air flowing through the cold plate 2, the temperature of the air flowing into the air duct 2b from the air inlet 12 is low, and after the heat from the battery cell 4 is absorbed in the air duct 2b, the temperature of the air flowing out from the air outlet 13 is high, so that the heat generated by the battery cell 4 is carried away by the air flowing continuously from the outside (the arrow in fig. 4 shows the flowing direction of the air in the air duct). Simultaneously, the outside wind flows through the air duct 2b to reduce the temperature of the cold plate 2, and the cooling liquid which is converted into the gas state is converted into the liquid state again so as to repeatedly absorb the heat emitted by the battery cell. That is, after the heat generated by the battery core 4 is taken away by the cold plate 2, a part of the heat is directly taken away by the flowing air in an air cooling mode, and the other part of the heat is absorbed by the cooling liquid in a liquid cooling mode, and after the cooling liquid becomes gaseous, the heat of the cooling liquid can be taken away by the flowing air, so that the cooling liquid becomes liquid again.
Through setting up liquid cooling and two kinds of cooling methods of forced air cooling for the during operation temperature of electric core 4 can not be too high, thereby can not influence the life-span of electric core 4, and make electric core 4 can not take place thermal runaway, and then improved the security of battery package.
Meanwhile, the cooling effect of the liquid cooling and air cooling combined mode is good, and when the battery pack is used for a vehicle, an external whole vehicle thermal management system is not needed, so that the design difficulty of the thermal management system is reduced, and the battery pack and the vehicle body are convenient to assemble. In other words, such a cooling assembly design is particularly suitable for small power battery packs, such as those of electric motorcycles, unmanned aerial vehicles, and the like.
Specifically, a plurality of cold plates 2 may be provided in the case 1. For example, a plurality of cold plates 2 may be arranged side by side in the lateral direction of the case 1, with the battery cells 4 being placed between the cold plates 2 and between the cold plates 2 and the side walls of the case 1. The surface with larger area of the cold plate 2 is parallel to the surface with larger area of the battery cell 4, so that the contact area between the battery cell 4 and the cold plate 2 is larger, and the cooling effect of the cold plate 2 on the battery cell 4 is better. Heat conducting glue can be coated between the battery cell 4 and the cold plate 2, so that the heat transfer efficiency between the battery cell 4 and the cold plate 2 is higher. It will be appreciated that the number and arrangement of the cold plates 2 is not limited to the form shown in fig. 3, and the present application is not limited to the number, arrangement, and number of the cells 4 between the cold plates 2.
In addition, the cold plate 2 and the case 1 can be made of metal materials, so that the heat transfer effect is good, and when the battery cell 4 is in unexpected thermal runaway, the cold plate 2 and the case 1 are not inflammable, so that the thermal runaway can be prevented from spreading.
In a specific embodiment, as shown in fig. 4, the cold plate 2 is hollow, and a receiving cavity 2a is formed inside.
In this embodiment, as shown in fig. 4, the accommodating cavity 2a may be defined by at least part of a peripheral wall of the hollow structure and part of a side wall of the case 1, and by this form, the accommodating cavity 2a may be defined to facilitate the production of the cold plate 2, and reduce the difficulty in producing the cold plate 2. Wherein the hollow structure communicates with the outside when the cold plate 2 is not mounted to the case 1.
Specifically, the cold plate 2 is connected to the case 1 by welding. After the welding, the gap between the cold plate 2 and the case 1 is sealed, so that the leakage of the coolant in the accommodation chamber 2a can be prevented. Alternatively, the receiving chamber 2a may be formed by the cold plate 2 alone, and then the cold plate 2 is welded to the case 1.
More specifically, as shown in fig. 3 to 5, the tank 1 is provided with a liquid injection port 11, the liquid injection port 11 is located on a side wall of the tank 1 and penetrates through the side wall where the liquid injection port 11 is located, when the cold plate 2 is installed in the tank 1, the liquid injection port 11 corresponds to a hollow structure, so that the liquid injection port 11 is communicated with the accommodating cavity 2a, the cooling assembly further comprises a blocking piece 3, and the blocking piece 3 can block the liquid injection port 11. The operator can inject the cooling liquid into the accommodating chamber 2a through the liquid injection port 11, and seal the liquid injection port 11 by the blocking member 3 after the liquid injection to prevent the cooling liquid from leaking from the liquid injection port 11. Wherein, the blocking piece 3 can be detachably connected with the liquid injection port 11 or directly welded on the liquid injection port 11. The shape of the liquid injection port 11 may be square, round, diamond, etc., and the present application does not limit the shape of the liquid injection port 11.
Further, as shown in fig. 6, 7 and 9, the cold plate 2 includes an air intake portion 21, a transition portion 22 and a cooling portion 23. Wherein the air inlet portion 21 of the cold plate 2 is communicated with the air inlet 12 of the box body 1, the transition portion 22 is connected with the air inlet portion 21 and the cooling portion 23, so that air is guided to pass through the air duct 2b, the air is discharged from the air outlet 13 of the box body 1, heat generated by the battery pack is carried away in the process, and the cooling portion 23 is a main body portion of the cold plate 2, which is in contact with the battery cell 4, and wherein the cooling liquid absorbs heat, generates phase change and releases heat. Referring to fig. 6, in the present embodiment, the cooling portion 23 may be a plate body portion of the cold plate 2 having a large contact area with the battery cells 4.
Specifically, as shown in fig. 9, the cooling portion 23 has a passage 232 therethrough, and the transition portion 22 and the passage 232 enclose a hollow structure.
By dividing the cold plate 2 into two parts, namely the transition part 22 and the cooling part 23, the difficulty of producing the cold plate 2 is reduced, since the difficulty of forming the through passage 232 is low. The transition 22 is welded with the cooling portion 23 such that the opening of the channel 232 towards the transition 22 is sealed by the transition 22. At the same time, the cold plate 2 is welded into the tank 1, and the opening of the channel 232 facing away from the transition portion 22 is sealed by the side wall of the tank 1, so that the cooling liquid does not leak.
The width of the cooling portion 23 is greater than that of the transition portion 22, so that the extending length of the channel 232 is longer, the volume of the accommodating cavity 2a is larger, the cooling capacity of the cold plate 2 is stronger, and the cooling effect on the battery cell 4 is better.
In a specific embodiment, as shown in fig. 6, 7 and 9, the air duct 2b includes a first air duct 211, a second air duct 221 and a third air duct 231, which are sequentially connected, the first air duct 211 is disposed at the air inlet portion 21, the second air duct 221 is disposed at the transition portion 22, and the third air duct 231 is disposed at the cooling portion 23.
In this embodiment, the length of the air duct 2b with a longer length is divided into the first air duct 211, the second air duct 221 and the third air duct 231, so that the lengths of the first air duct 211, the second air duct 221 and the third air duct 231 are shorter, the difficulty in forming the air duct 2b is reduced, and the production of the cold plate 2 is facilitated.
The transition portion 22 mainly serves to connect the air intake portion 21 and the cooling portion 23. The extending direction of the second air duct 221 is the same as the extending direction of the third air duct 231, and is parallel to the extending direction of the passage 232. The pipe diameter of the second air duct 221 is the same as that of the third air duct 231.
Specifically, the air intake portion 21 may be formed by machining or may be produced by casting. The cooling portion 23 may be formed by an aluminum extrusion process.
In a specific embodiment, as shown in fig. 4 and 6, the cold plate 2 is provided with a avoiding groove 212, and the avoiding groove 212 is used for avoiding the tab of the battery cell 4, so that the battery cell 4 is convenient to be installed in the box 1.
Preferably, the avoidance groove 212 is provided in the air inlet portion 21, so that the provision of the avoidance groove 212 does not affect the volume of the accommodating chamber 2a or has a smaller effect on the volume of the accommodating chamber 2 a.
Further, as shown in fig. 4 and 9, the first air duct 211 includes a first sub-air duct 211a and a second sub-air duct 211b which are connected, and the extending direction of the first sub-air duct 211a is different from the extending direction of the second sub-air duct 211b so as to guide the air flowing from the air inlet portion 21 to the cooling portion 23.
One end of the first sub-air duct 211a is communicated with the air inlet 12, the other end of the first sub-air duct 211a is communicated with the second sub-air duct 211b, and one end of the second sub-air duct 211b, which is not communicated with the first sub-air duct 211a, is communicated with the second air duct 221. By changing the height of the first sub-duct 211a, a space can be provided for the arrangement of the avoidance groove 212.
The second air duct 221 and the third air duct 231 are located above the accommodating chamber 2a in the height direction, and the first air duct 211 is located at one side of the accommodating chamber 2a in the width direction, so that the air inlet 12 and the air outlet 13 can be located at different heights by dividing the first air duct 211 into the first sub-air duct 211a and the second sub-air duct 211b having different extending directions, and meanwhile, the air inlet portion 21 can be conveniently manufactured.
Further, the pipe diameter of the second sub-air duct 211b is smaller than that of the third air duct 231, so that the speed of the air flowing through the third air duct 231 is smaller than that of the air flowing through the second sub-air duct 211b, and further, more heat can be taken away by the air flowing through the third air duct 231.
Specifically, the air inlet portion 21 is welded to the transition portion 22, so that the opening of the second sub-air duct 211b toward the transition portion 22 is blocked, and the second air duct 221 is communicated with the second sub-air duct 211 b.
Preferably, the extending direction of the first sub air duct 211a and the extending direction of the second sub air duct 211b are perpendicular to each other.
In addition, as shown in fig. 4 and 7, the second sub-duct 211b may extend to the bottom of the air inlet portion 21 in the height direction, so that the weight of the air inlet portion 211 can be reduced, and the energy density of the battery pack as a whole can be improved. It is understood that the second sub-duct 211b may also extend only to the height of the first sub-duct 211 a.
In the application, the difficulty in forming the accommodating cavity 2a and the air duct 2b can be effectively reduced only by dividing the cold plate 2 into the air inlet part 21, the transition part 22 and the cooling part 23, and the production cost of the cold plate 2 is reduced.
In a specific embodiment, as shown in fig. 8 and 9, the cold plate 2 has a heat dissipating part 233, and the heat dissipating part 233 is located at a side of the accommodating chamber 2a near the third air duct 231. The cooling liquid in the accommodating chamber 2a evaporates after absorbing heat and moves to the upper direction where the third air duct 231 is located, the gaseous cooling liquid is fully contacted with the heat radiating part 233, and the heat is transferred to the third air duct 231 through the heat radiating part 233 and is taken away by flowing air, so that the gaseous cooling liquid is condensed and drops.
The cooling part 23 is provided with a third air duct 231, a channel 232 and a heat dissipation part 233, wherein the channel 232 is parallel to the surface of the battery cell 4 with larger area and can be used for storing cooling liquid. The heat dissipation portion 233 is located at a side of the channel 232 near the third air duct 231, if the cooling liquid is a gas-liquid two-phase liquid, the cooling plate 2 absorbs the heat of the battery core, and then the cooling liquid in the channel 232 evaporates to the heat dissipation portion 233, the heat dissipation portion 233 can accelerate the evaporated cooling liquid to be condensed into liquid, and the heat dissipation portion 233 can be a heat dissipation fin or the like. The third air duct 231 is disposed above the heat dissipation portion 233, and the third air duct 231 further accelerates the evaporated cooling liquid and condenses it, so that it returns to the inside of the cold plate 2 again, thereby completing heat exchange.
Specifically, as shown in fig. 8, the heat dissipation portion 233 includes a plurality of protrusions protruding toward the inside of the accommodating chamber 2a, and the protrusion structure can increase the contact area with the gaseous cooling liquid, improving the heat transfer efficiency. It is understood that the present application is not limited to the shape, number and arrangement of the heat dissipating parts 233.
In the above embodiment, the battery pack further includes the case cover 6, and the case cover 6 covers the case 1, so as to protect the structure such as the battery cell 4, the cold plate 2, and the electrical component 5 in the case 1.
The battery pack is assembled by welding the cold plate 2 in the case 1, connecting the first air duct 211 with the air inlet 12, sealing the third air duct 231 with the air outlet 13, and connecting the liquid injection port 11 with the accommodating cavity 2 a. After ensuring that the accommodating chamber 2a is not leaked, the cooling liquid is injected into the accommodating chamber 2a through the liquid injection port 11, and the liquid injection port 11 is blocked by the blocking member 3. Finally, the battery cell 4 and the electrical component 5 are placed in the case 1, and the case cover 6 is covered.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421948718.9U CN223108972U (en) | 2024-08-12 | 2024-08-12 | A cooling assembly for a battery pack and a battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421948718.9U CN223108972U (en) | 2024-08-12 | 2024-08-12 | A cooling assembly for a battery pack and a battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN223108972U true CN223108972U (en) | 2025-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421948718.9U Active CN223108972U (en) | 2024-08-12 | 2024-08-12 | A cooling assembly for a battery pack and a battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121663030A (en) * | 2025-12-17 | 2026-03-13 | 贵州嘉盈科技有限公司 | A heat dissipation system for soft-pack lithium battery cells and a drone battery module |
-
2024
- 2024-08-12 CN CN202421948718.9U patent/CN223108972U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121663030A (en) * | 2025-12-17 | 2026-03-13 | 贵州嘉盈科技有限公司 | A heat dissipation system for soft-pack lithium battery cells and a drone battery module |
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