CN211789381U - Liquid cooling system, battery system and car - Google Patents
Liquid cooling system, battery system and car Download PDFInfo
- Publication number
- CN211789381U CN211789381U CN202020673713.5U CN202020673713U CN211789381U CN 211789381 U CN211789381 U CN 211789381U CN 202020673713 U CN202020673713 U CN 202020673713U CN 211789381 U CN211789381 U CN 211789381U
- Authority
- CN
- China
- Prior art keywords
- liquid cooling
- plate
- cooling system
- liquid
- bottom 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.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a liquid cooling system, battery system and car, the liquid cooling system includes: the liquid cooling plates are arranged below the battery module, the length extending direction of the liquid cooling plates is consistent with the arrangement direction of the battery module, each liquid cooling plate comprises an upper plate, a lower plate and a side plate which is positioned between the upper plate and the lower plate and extends along the edge of the upper plate, the space defined by the upper plate, the lower plate and the side plates together forms a liquid cooling cavity, a plurality of mounting convex parts are arranged on the side plates at intervals along the first end surfaces of the liquid cooling plates in the length direction, and the side plates are provided with second end surfaces opposite to the first end surfaces; the bearing bottom plate beam is clamped between the two liquid cooling plates, the bearing bottom plate is arranged on one side, connected with the first end face, of the bearing bottom plate, a plurality of mounting grooves are formed at intervals, and the mounting grooves are matched with the mounting convex portions. The scheme has low cost, reduces the height of the power battery, and increases the ground clearance of the vehicle, thereby increasing the safety of the vehicle; the liquid cooling system is longitudinally arranged, cooling liquid flows out after going forward, and the flow resistance is small.
Description
Technical Field
The utility model relates to an automotive filed, in particular to liquid cooling system, battery system and car.
Background
The current global automobile industry faces huge challenges of energy and environmental problems, and pure electric automobiles with high energy utilization rate and no environmental pollution increasingly become the development direction of the future automobile industry. The power battery is used as a core component of the pure electric vehicle, and the performance of the power battery directly influences the whole vehicle performance of the pure electric vehicle.
In order to meet the endurance mileage of an electric vehicle, meet the requirements of various climates on a power battery and prolong the service life of the power battery, the current mainstream power batteries are all designed with a thermal management system to ensure that the power battery works in an optimal temperature range. The box body and the liquid cooling system are used as main structural members of the battery pack, are optimized, and have a vital effect on improving the energy density and the safety of the power battery.
The current mainstream liquid cooling scheme is as follows:
1. bottom plate + liquid cooling board: the liquid cooling scheme of present mainstream is bottom plate + liquid cooling board, and the main shortcoming of this scheme has:
(1) the dry-wet separation cannot be carried out, so that the cooling liquid has the risk of leaking to a high-voltage area, and the hidden danger of causing the safety accident of the power battery exists;
(2) the bottom plate and the liquid cooling system are two sets of systems, so that the weight is heavier and the cost is higher;
(3) the power battery is generally arranged at the bottom of the vehicle, and the scheme of the bottom plate and the liquid cooling system is higher, so that the ground clearance of the vehicle is reduced.
2. The scheme is adopted by most of the existing novel aluminum profile boxes, and the stamping liquid cooling system is divided into an upper plate and a lower plate, and the scheme has the main defects that:
(1) the cost of the upper and lower plate stamping dies is high;
(2) the strength of the upper and lower punching plates is weaker;
(3) the plane of the punched plate is uneven, which leads to a complex form of internal installation and fixation.
3. The transverse integrated liquid cooling plate and gluing process comprises the following steps: the transverse integrated liquid cooling system and gluing process has high integration level, but has the following defects:
(1) the cooling liquid inlet and outlet are arranged on the front side, the cooling loop is long, and the flow resistance is large;
(2) the bottom plate and the frame use an adhesive process, the process flow is complex, the requirements on environment and surface cleanliness are high, and the structural strength is weak.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect of prior art, the embodiment of the utility model provides a liquid cooling system, battery system and car.
In order to solve the technical problem, the utility model discloses a following technical scheme:
according to an aspect of the utility model, a liquid cooling system is provided, include:
the liquid cooling plates comprise an upper plate, a lower plate and a side plate which is positioned between the upper plate and the lower plate and extends along the edge of the upper plate, the space enclosed by the upper plate, the lower plate and the side plate forms a liquid cooling cavity, a plurality of mounting convex parts are arranged on the side plate at intervals along the length direction of the liquid cooling plates, and the side plate is provided with a second end face opposite to the first end face;
the bearing bottom plate beam is clamped between the two liquid cooling plates, and the bearing bottom plate is connected with the first end face, a plurality of mounting grooves are formed in the side, connected with the first end face, of the bearing bottom plate at intervals, and the mounting grooves are matched with the mounting convex portions.
Optionally, the load-bearing floor beam includes a rectangular base plate, and a load-bearing platform disposed on the base plate along a length extending direction of the base plate, the load-bearing platform being located at a center position of an upper surface of the base plate; and one side of the substrate, which is far away from the bearing table, is connected with the second end face.
Optionally, the method further comprises:
the liquid cooling pipeline comprises a water inlet pipeline and a water outlet pipeline; the water outlet pipeline is positioned at one end of the bearing bottom plate beam in the length direction, and the water inlet pipeline is oppositely arranged at the other end;
set up respectively in the mass flow body at liquid cooling pipeline both ends, the mass flow body is connected with the curb plate laminating of liquid cooling board, the mass flow body with the interval is provided with a plurality of via holes on the contact surface of curb plate, the mass flow body is hollow tubular structure, the mass flow body is inside to be passed through the via hole with the liquid cooling chamber is linked together.
Optionally, the current collectors include a first current collector connected to two ends of the water inlet pipeline and a second current collector connected to two ends of the water outlet pipeline;
the first current collector is bent along the length direction, and the bending degree is matched with the bending degree of the side plate edge of the liquid cooling plate.
Optionally, a sealing member for sealing is disposed at an interface of the liquid cooling pipeline and the current collector.
Optionally, the material of the sealing element is ethylene propylene diene monomer.
Optionally, the substrate and the liquid cooling plate are bonded by an adhesive.
Optionally, the connection mode between the current collector and the side plate of the liquid cooling plate is laser welding or cold metal transition technology CMT welding.
Optionally, the liquid cooling pipeline has a cooling liquid inside.
Optionally, the liquid cooling plate and the bearing bottom plate are connected in a matched mode through the mounting convex part and the mounting groove, and the joint of the liquid cooling plate and the bearing bottom plate is bonded through structural adhesive.
According to another aspect of the present invention, there is provided a battery system including the liquid cooling system as described above.
According to another aspect of the present invention, there is provided an automobile including the battery system as described above.
The utility model has the advantages that:
according to the scheme, the liquid cooling system with the integrated base plate reduces the height of the power battery and increases the height of the vehicle from the ground, so that the safety of the vehicle is improved; the liquid cooling system is longitudinally arranged, cooling liquid flows out after going forward, and the flow resistance is small; the accessible increases and decreases X to the size and be applicable to the motorcycle type of different levels, and manufacturing cost is lower.
Drawings
Fig. 1 shows an exploded view of a liquid cooling system of a power battery according to an embodiment of the present invention;
fig. 2 shows one of schematic diagrams of a liquid cooling system of a power battery according to an embodiment of the present invention;
fig. 3 shows a second schematic view of a liquid cooling system of a power battery according to an embodiment of the present invention;
fig. 4 shows a third schematic view of a liquid cooling system of a power battery according to an embodiment of the present invention.
Description of reference numerals:
1-a load-bearing floor beam; 101-a substrate; 102-a bearing table; 2-liquid cooling plate; 201-a first end face; 3-a load-bearing floor; 4-liquid cooling pipelines; 401-water inlet pipe; 402-water outlet line; 5-current collector; 501-a first current collector; 502-a second current collector; 6-battery module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses to the big and high problem of manufacturing cost of current liquid cooling system flow resistance, the utility model provides a liquid cooling system, battery system and car.
As shown in fig. 1, one embodiment of the present invention provides a liquid cooling system, including:
the battery module comprises at least two liquid cooling plates 2 arranged below the battery module 6, wherein the length extending direction of the liquid cooling plates 2 is consistent with the arrangement direction of the battery module 6, each liquid cooling plate 2 comprises an upper plate, a lower plate and a side plate located between the upper plate and the lower plate and extending along the edge of the upper plate, the lower plate and the side plate jointly form a liquid cooling cavity, a plurality of installation convex parts are arranged on the first end face 201 of the liquid cooling plates 2 in the length direction at intervals on the side plate, and the side plate is provided with a second end face opposite to the first end face 201.
It should be noted that, as shown in fig. 2, according to a preferred embodiment of the present invention, the base plate 101 and the liquid cooling plate 2 can be bonded by an adhesive, specifically, the adhesive can be a structural adhesive.
The bearing bottom plate beam comprises a bearing bottom plate beam 1 clamped between the two liquid cooling plates 2 and a bearing bottom plate 3 connected with the first end face 201, wherein a plurality of mounting grooves are formed in one side, connected with the first end face 201, of the bearing bottom plate 3 at intervals, and the mounting grooves are matched with the mounting convex portions.
In the structure, the liquid cooling plate 2 and the bearing bottom plate 3 are connected into a whole through mutual insertion and structural adhesive, optionally, the liquid cooling plate 2 and the bearing bottom plate 3 are connected in a matched mode through the mounting convex part and the mounting groove, and the joint of the liquid cooling plate 2 and the bearing bottom plate 3 is bonded through the structural adhesive. Specifically, the liquid cooling plate 2 is connected with the mounting groove on the bearing bottom plate 3 in an opposite insertion manner through a mounting convex portion arranged on the first end surface 201, and the stability of the connecting structure is further enhanced through structural adhesive bonding.
It should be noted that the embodiment of the present invention provides a liquid cooling system that adopts the design of bottom plate integrated form, that is to say, will liquid cooling plate 2 with bearing bottom plate 3 is integrated together, wherein, in the production stage, liquid cooling plate 2, bearing bottom plate roof beam 1 and bearing bottom plate 3 accessible are produced with the mode that the mould was extruded. The extrusion module has low cost and is suitable for the new energy industry with high-speed development.
Optionally, the load-bearing floor beam 1 includes a rectangular base plate 101, and a load-bearing platform 102 disposed on the base plate 101 along a length extension direction of the base plate 01, wherein the load-bearing platform 102 is located at a central position of an upper surface of the base plate 101; one side of the substrate 101 away from the bearing platform 102 is connected to the second end face.
It should be noted that the structural strength of the entire liquid cooling system can be enhanced by the arrangement of the bearing table 102. The battery modules 6 may be located on the upper surfaces of the base plate 101 and the liquid cooling plate 2, and are symmetrically arranged on two sides of the bearing table 102 along the length extension direction of the base plate 101.
Optionally, the method further comprises:
a liquid cooling pipeline 4, wherein the liquid cooling pipeline 4 comprises a water inlet pipeline 401 and a water outlet pipeline 402; the water outlet pipeline 402 is located at one end of the bearing bottom plate beam 1 in the length direction, and the water inlet pipeline 401 is oppositely arranged at the other end.
Specifically, the liquid cooling pipeline 4 may be produced by casting, and then the specific type of the liquid cooling pipeline 4 required by the system is machined.
It should be noted that, the liquid cooling pipeline 4 has the cooling liquid therein, and the water inlet pipeline 401 and the water outlet pipeline 402 of the liquid cooling pipeline 4 are arranged in opposite directions, so that the scheme that the cooling liquid is discharged after being moved forward has a small flow resistance and is easy to control the flow rate.
Set up respectively in the mass flow body 5 at 4 both ends of liquid cooling pipeline, the mass flow body 5 is connected with the curb plate laminating of liquid cooling board 2, mass flow body 5 with the interval is provided with a plurality of via holes on the contact surface of curb plate, mass flow body 5 is hollow tubular structure, mass flow body 5 is inside to be passed through the via hole with the liquid cooling chamber is linked together.
It should be noted that, as shown in fig. 3, the current collector 5 and the liquid cooling plate 2 are connected through an insertion structure and then reinforced through welding, specifically, the insertion structure includes a plurality of protrusions disposed on a side plate of the liquid cooling plate 2, and further includes a plurality of grooves disposed on the current collector 5 and matched with the protrusions, and the protrusions and the grooves are inserted to fix the current collector 5 and the liquid cooling plate 2 relatively. As one of the preferred embodiments of the present invention, the welding technique may adopt laser welding or Cold Metal Transfer (CMT) welding. The bottom plate (integrated by the liquid cooling plate and the bearing bottom plate) and the box body frame (not shown) break through the space limitation of a transverse integrated liquid cooling system, and the bottom plate and the box body frame can adopt a friction stir welding or flowing self-tapping screw connection mode to enhance the overall strength of the power battery; the friction stir welding or circulation self-tapping screw process is mature, and the sealing performance is easy to guarantee.
Optionally, the current collector 5 comprises a first current collector 501 connected to two ends of the water inlet pipeline 401 and a second current collector 502 connected to two ends of the water outlet pipeline 402;
the first current collector 501 is curved along the length direction, and the curvature matches with the curvature of the side plate edge of the liquid cooling plate 2.
It should be noted that, as shown in fig. 4, the curvature may be specifically designed according to the installation space of a specific vehicle type, so that the liquid cooling system is adapted to different vehicle types. In addition, the first current collectors 501 at the two ends of the water inlet pipeline 401 are symmetrically arranged relative to the water inlet pipeline 401, and the second current collectors 502 at the two ends of the water outlet pipeline 402 are symmetrically arranged relative to the water outlet pipeline 402, so that the flow can be uniformly distributed, and the heat conduction and refrigeration performance of the whole liquid cooling system is stable.
Optionally, a sealing member for sealing is disposed at an interface between the liquid cooling pipeline 4 and the current collector 5.
That is, optionally, the connection manner between the current collector 5 and the side plate of the liquid cooling plate 2 is laser welding or cold metal transition technology CMT welding. The water inlet pipeline 401 and the current collector 5, and the water outlet pipeline 402 and the current collector 5 can be respectively plugged together through the sealing members. According to one embodiment of the present invention, the sealing member is made of Ethylene Propylene Diene Monomer (EPDM), which can ensure good sealing performance of the sealing member.
It should be noted that the liquid cooling system is a longitudinally integrated (i.e. liquid cooling plate and bearing bottom plate are integrated) liquid cooling system, so that the height of the power battery is reduced, and the height of the vehicle above the ground is increased, thereby increasing the safety of the vehicle. As shown in fig. 1, the battery modules 6 may be longitudinally arranged and fixed on the load-bearing floor 3 along the length extension direction of the load-bearing floor beam 1. Liquid cold plate 2 parallelly connected arranges in battery module bottom, optionally, be provided with heat conduction structure between liquid cold plate 2 and the battery module 6 and glue to guarantee structural stability and better heat conductivity between liquid cold plate 2 and the battery module 6 through above-mentioned structure for whole liquid cooling system's cooling and heating effect are good, can ensure that power battery work is in best operating temperature interval, thereby effectively prolong power battery life.
It is worth mentioning that the embodiment of the utility model provides a power battery's liquid cooling system is applicable in the 590 module, also can be applicable to 390 standard module. During production, the width of the liquid cooling plate 2 is narrowed according to the requirement of a 390 standard module, three liquid cooling plates 2 are extruded by a die, and the liquid cooling system is connected with all components by the same design concept. That is to say, in the production stage, the accessible increases the size of liquid cooling system X is to, is suitable for different motorcycle types, and the design is nimble, and the suitability is wider.
The embodiment of the utility model provides a liquid cooling system to the power battery lightweight, reduces the power battery height, promotes power battery bulk strength and has the important function, is favorable to the platformization motorcycle type.
The embodiment of the utility model provides a still provide a battery system, including foretell liquid cooling system.
The embodiment of the utility model provides a still provide an automobile, including foretell battery system.
The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Claims (12)
1. A liquid cooling system, comprising:
the battery cooling structure comprises at least two liquid cooling plates (2) arranged below a battery module (6), wherein the length extension direction of the liquid cooling plates (2) is consistent with the arrangement direction of the battery module (6), each liquid cooling plate (2) comprises an upper plate, a lower plate and a side plate which is positioned between the upper plate and the lower plate and extends along the edge of the upper plate, the space surrounded by the upper plate, the lower plate and the side plates forms a liquid cooling cavity, a plurality of mounting convex parts are arranged on the side plates at intervals along the length direction of the liquid cooling plates (2) on a first end face (201), and a second end face is arranged on the side plate opposite to the first end face (201);
a load-bearing floor beam (1) interposed between two of said liquid-cooled panels (2), and
the bearing bottom plate (3) is connected with the first end face (201), a plurality of mounting grooves are formed in one side, connected with the first end face (201), of the bearing bottom plate (3) at intervals, and the mounting grooves are matched with the mounting convex portions.
2. The liquid cooling system of claim 1, wherein the load-bearing floor beam (1) comprises a rectangular base plate (101) and a load-bearing platform (102) disposed on the base plate (101) along a length of the base plate (101), the load-bearing platform (102) being located at a center of an upper surface of the base plate (101); wherein, a side of the substrate (101) far away from the bearing platform (102) is connected with the second end face.
3. The liquid cooling system of claim 1 or 2, further comprising:
a liquid cooling pipeline (4), wherein the liquid cooling pipeline (4) comprises a water inlet pipeline (401) and a water outlet pipeline (402); the water outlet pipeline (402) is positioned at one end of the bearing bottom plate beam (1) in the length direction, and the water inlet pipeline (401) is oppositely arranged at the other end;
set up respectively in the mass flow body (5) at liquid cooling pipeline (4) both ends, the curb plate laminating of mass flow body (5) and liquid cooling board (2) is connected, mass flow body (5) with the interval is provided with a plurality of via holes on the contact surface of curb plate, mass flow body (5) are hollow tubular structure, mass flow body (5) inside is passed through the via hole with the liquid cooling chamber is linked together.
4. The liquid cooling system of claim 3,
the current collector (5) comprises a first current collector (501) connected to two ends of the water inlet pipeline (401) and a second current collector (502) connected to two ends of the water outlet pipeline (402);
the first current collector (501) is bent along the length direction, and the bending degree is matched with the bending degree of the side plate edge of the liquid cooling plate (2).
5. The liquid cooling system of claim 3, wherein a seal is provided at an interface of the liquid cooling line (4) and the current collector (5) for sealing.
6. The liquid cooling system of claim 5, wherein the material of the seal is ethylene propylene diene monomer.
7. The liquid cooling system of claim 2, wherein the substrate (101) is bonded to the liquid cooling plate (2) by an adhesive.
8. The liquid cooling system according to claim 3, wherein the connection between the current collector (5) and the side plate of the liquid cooling plate (2) is laser welding or cold metal transition technology (CMT) welding.
9. A liquid cooling system according to claim 3, characterized in that the liquid cooling line (4) has a cooling liquid inside.
10. The liquid cooling system of claim 1 or 2, wherein the liquid cooling plate (2) is connected with the bearing bottom plate (3) through the mounting convex part and the mounting groove in a matching manner, and the joint of the liquid cooling plate (2) and the bearing bottom plate (3) is bonded through structural adhesive.
11. A battery system comprising a liquid cooling system as claimed in any one of claims 1 to 10.
12. An automobile characterized by comprising the battery system according to claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020673713.5U CN211789381U (en) | 2020-04-28 | 2020-04-28 | Liquid cooling system, battery system and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020673713.5U CN211789381U (en) | 2020-04-28 | 2020-04-28 | Liquid cooling system, battery system and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211789381U true CN211789381U (en) | 2020-10-27 |
Family
ID=72957673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020673713.5U Active CN211789381U (en) | 2020-04-28 | 2020-04-28 | Liquid cooling system, battery system and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211789381U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113300024A (en) * | 2021-05-21 | 2021-08-24 | 广州小鹏汽车科技有限公司 | Power battery liquid cooling device, power battery system and vehicle |
| CN113363617A (en) * | 2021-06-18 | 2021-09-07 | 中国第一汽车股份有限公司 | Battery liquid cooling plate assembly, power battery assembly and electric vehicle |
-
2020
- 2020-04-28 CN CN202020673713.5U patent/CN211789381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113300024A (en) * | 2021-05-21 | 2021-08-24 | 广州小鹏汽车科技有限公司 | Power battery liquid cooling device, power battery system and vehicle |
| CN113363617A (en) * | 2021-06-18 | 2021-09-07 | 中国第一汽车股份有限公司 | Battery liquid cooling plate assembly, power battery assembly and electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204614833U (en) | Battery modules and electrokinetic cell system | |
| CN211789381U (en) | Liquid cooling system, battery system and car | |
| CN106410319A (en) | Integrated liquid-cooling device of battery tray | |
| CN108847509A (en) | A kind of cooling structure and battery modules | |
| CN209626374U (en) | Liquid cooling plate, battery pack and vehicle | |
| CN211017317U (en) | Battery box | |
| CN212695226U (en) | Three-dimensional netted foamed aluminum composite liquid cooling plate structure wrapped by harmonica tube of power battery pack | |
| CN103738157B (en) | Automobile radiators system installation structure | |
| CN112397806A (en) | Battery cold plate integrating heating function, power battery system and new energy vehicle | |
| CN215705632U (en) | Vehicle floor and battery pack integrated device and vehicle | |
| CN203651449U (en) | Crossflow type automobile radiator system mounting structure | |
| CN103738156B (en) | Be applicable to the mounting bracket assembly of cross-flow radiator system | |
| CN112072025A (en) | Integrated lower bottom plate of anti-extrusion battery lower box body and preparation method thereof | |
| CN210040354U (en) | Battery box | |
| CN114335795A (en) | Integrated battery assembly with double-layer module, electric vehicle and design method | |
| CN210956752U (en) | Power battery frame structure with cooling liquid flow channel | |
| CN213124557U (en) | Cooling device, battery pack and automobile with battery pack | |
| CN114284596A (en) | Integrated battery assembly, electric vehicle and design method | |
| CN114914582A (en) | Liquid cooling board and battery pack lower box body integrated structure, battery pack and automobile | |
| CN210403853U (en) | Battery package and car | |
| CN219419175U (en) | Liquid cooling plate device for cooling battery, corresponding battery cell module and battery device | |
| CN113948808A (en) | Power battery system | |
| CN220604781U (en) | New forms of energy liquid cooling board for electric motor car | |
| CN219739054U (en) | Automobile battery pack liquid cooling plate | |
| CN210006863U (en) | liquid cooling device and battery module liquid cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |