CN109473581B - Battery box for vehicle and vehicle - Google Patents
Battery box for vehicle and vehicle Download PDFInfo
- Publication number
- CN109473581B CN109473581B CN201811274021.7A CN201811274021A CN109473581B CN 109473581 B CN109473581 B CN 109473581B CN 201811274021 A CN201811274021 A CN 201811274021A CN 109473581 B CN109473581 B CN 109473581B
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- layer structure
- circumferential
- air outlet
- outer layer
- inner layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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
Abstract
The invention discloses a vehicle battery box and a vehicle. The battery box for the vehicle comprises a body and a cover body connected with the body, wherein the body comprises an inner layer structure and an outer layer structure arranged on the outer side of the inner layer structure, the inner layer structure and the outer layer structure are both barrel-shaped, an air duct is formed between the inner layer structure and the outer layer structure, an air inlet and an air outlet are formed in the outer layer structure, and air is exhausted from the air inlet through the air duct and the air outlet. According to the battery box for the vehicle, the inner layer structure and the outer layer structure are arranged in a barrel shape, the air channels are formed between the inner layer structure and the outer layer structure and are formed in the whole circumferential direction and at the bottom of the inner layer structure, the contact area between the air channels and the inner layer structure and the contact area between the air channels and the outer layer structure are greatly increased, so that the forced air flow formed in the air channels through the fan can rapidly take away heat inside the battery box, and the heat dissipation efficiency and the heat dissipation effect are remarkably improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a battery box for a vehicle and the vehicle.
Background
The development of new energy vehicles is promoted in the current problems of increasingly depleted petroleum resources, air pollution caused by exhaust emission and the like, electric vehicles and hybrid electric vehicles are more and more emphasized, particularly electric vehicles, belong to zero-emission vehicles, are low in noise, comfortable and clean, and are easy and convenient to operate and maintain.
The electric energy storage device of the electric automobile is an automobile-mounted rechargeable storage battery, the performance of the automobile-mounted rechargeable battery directly determines the performance of the electric automobile, the automobile-mounted rechargeable battery can cause liquid leakage, combustion, explosion and other safety problems due to heating and temperature rise in the charging and discharging process, the automobile-mounted rechargeable battery in the prior art dissipates heat by arranging a refrigerating device and a heat dissipation fan on a battery box of the automobile-mounted rechargeable battery, the heat dissipation effect and the efficiency are poor, and the temperature in the battery box cannot be reduced in time.
Disclosure of Invention
In view of the above, the present invention aims to provide a vehicle battery box with better heat dissipation and a vehicle.
In order to achieve the above purpose, on one hand, the invention adopts the following technical scheme:
a battery box for a vehicle comprises a body and a cover body connected with the body, wherein the body comprises an inner layer structure and an outer layer structure arranged on the outer side of the inner layer structure, the inner layer structure and the outer layer structure are both barrel-shaped, an air duct is formed between the inner layer structure and the outer layer structure, an air inlet and an air outlet are formed in the outer layer structure, and air is exhausted from the air inlet through the air duct and out of the air outlet.
Preferably, a first partition plate structure is arranged between the outer side wall of the inner layer structure and the inner side wall of the outer layer structure, the first partition plate structure is transversely arranged, and the first partition plate structure divides the air duct into a circumferential air duct at the upper part and a bottom air duct at the lower part;
the air inlet comprises a bottom air inlet positioned at the lower part of the outer layer structure and a circumferential air inlet positioned at the upper part of the outer layer structure;
the air outlet is including being located outer skin structure lower part's bottom air outlet and being located outer skin structure upper portion's circumference air outlet.
Preferably, a first heat dissipation rib is arranged on the outer side wall of the inner layer structure, and the first heat dissipation rib extends along the circumferential direction of the inner layer structure.
Preferably, a second heat dissipation rib is arranged on the outer bottom wall of the inner-layer structure, and the second heat dissipation rib extends between the bottom air inlet and the bottom air outlet.
Preferably, a second partition plate structure is arranged between the outer side wall of the inner layer structure and the inner side wall of the outer layer structure, the surface of the second partition plate structure is perpendicular to the surface of the first partition plate structure, and the second partition plate structure divides the circumferential air duct into a first circumferential air duct and a second circumferential air duct which are arranged oppositely;
The circumferential air inlets comprise a first circumferential air inlet and a second circumferential air inlet which are positioned at two sides of the second partition plate;
the circumferential air outlet comprises a first circumferential air outlet and a second circumferential air outlet which are positioned on two sides of the second partition plate.
Preferably, the first circumferential air inlet comprises two air inlets arranged at the end parts of the first circumferential air duct, and the first circumferential air outlet comprises one air outlet arranged in the middle of the first circumferential air duct; and/or the presence of a gas in the atmosphere,
the second circumferential air inlet comprises two air inlets arranged at the end parts of the second circumferential air duct, and the second circumferential air outlet comprises one air outlet arranged in the middle of the second circumferential air duct.
Preferably, the cross section of the side wall of the outer layer structure is wavy or zigzag.
Preferably, the cover body comprises an upper cover and a lower cover, the upper cover is connected with the outer layer structure in a sealing mode, and the lower cover is connected with the inner layer structure in a sealing mode.
Preferably, the cover body comprises a top plate, and an outer enclosing plate and an inner enclosing plate which are connected to the top plate, the inner enclosing plate is located on the inner side of the outer enclosing plate, the inner enclosing plate is connected with the inner structure in a sealing manner, and the outer enclosing plate is connected with the outer structure in a sealing manner.
In order to achieve the above purpose, on the other hand, the invention adopts the following technical scheme:
a vehicle includes above-mentioned battery box for vehicle.
According to the battery box for the vehicle and the vehicle, the inner layer structure and the outer layer structure are arranged in a barrel shape, the air channels are formed between the inner layer structure and the outer layer structure and are formed at the whole circumferential direction and the bottom of the inner layer structure, the contact area between the air channels and the inner layer structure and the contact area between the air channels and the outer layer structure are greatly increased, so that heat in the battery box can be rapidly taken away through forced air flow formed in the air channels by the fans, and the heat dissipation efficiency and the heat dissipation effect are remarkably improved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.
FIG. 1 is a first cross-sectional view of a battery case body in plan view in an embodiment of the invention;
FIG. 2 is a sectional view of a main body of a battery case in a front view of an embodiment of the present invention;
FIG. 3 is a second sectional view of the body of the battery case in plan view in the embodiment of the invention;
fig. 4 is a sectional view of a lower cover of a lid body of a battery case in a plan view in an embodiment of the invention;
FIG. 5 is a sectional view of a lower cover of a lid body of a battery case in front view, according to an embodiment of the present invention;
FIG. 6 is a sectional view of an upper cover of a lid body of a battery case in a plan view, according to an embodiment of the present invention;
FIG. 7 is a sectional view of an upper cover of a lid body of a battery case in front view, according to an embodiment of the present invention;
FIG. 8 is a front sectional view of a cover of a battery case according to an embodiment of the present invention;
fig. 9 is a sectional view of a lid body of a battery case in a plan view in an embodiment of the invention.
In the figure:
1. a cover body; 11. an upper cover; 12. a lower cover; 121. a support post; 13. a top plate; 14. an outer-layer coaming plate; 15. an inner layer coaming;
2. a body; 21. an inner layer structure; 211. a first heat dissipating rib; 212. a second heat dissipating rib; 213. a leg structure; 22. an outer layer structure; 23. a first separator structure; 24. a second separator structure;
3. an air duct; 31. a circumferential air duct; 311. a first circumferential air duct; 312. a second circumferential air channel; 32. a bottom air duct;
4. an air outlet; 41. a bottom air outlet; 42. a circumferential air outlet; 421. a first circumferential air outlet; 422. a second circumferential air outlet;
5. an air inlet; 51. a bottom air inlet; 52. a circumferential air inlet; 521. a first circumferential air inlet; 522. and the second circumferential air inlet.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth.
Furthermore, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Example one
Referring to fig. 1 to 9, a vehicle battery box according to the present invention includes a body 2 and a cover 1 connected to the body 2, where the body 2 includes an inner layer 21 and an outer layer 22 disposed outside the inner layer 21, the inner layer 21 and the outer layer 22 are both barrel-shaped, a battery cell is disposed inside the inner layer 21, an air duct 3 is formed between the inner layer 21 and the outer layer 22, the air duct 3 is formed at the entire circumferential direction and bottom of the inner layer 21, a contact area between the air duct 3 and the inner layer 21 and the outer layer 22 is substantially increased, the outer layer 22 is provided with an air inlet 5 and an air outlet 4, and the air outlet 4 or the air inlet 5 is provided with a fan. Air is discharged from the air outlet 4 through the air duct 3 from the air inlet 5, a fan is installed on the battery box, heat inside the battery box can be rapidly taken away through forced air flow formed in the air duct 3 by the fan, and the heat dissipation efficiency and the heat dissipation effect of the battery box are remarkably improved.
It will be understood that a leg structure 213 is provided on the bottom of the inner layer structure 21, as shown in fig. 2, the inner layer structure 21 is mounted inside the outer layer structure 22 through the leg structure 213, and a gap is maintained between the outer bottom wall of the inner layer structure 21 and the inner bottom wall of the outer layer structure 22, and the gap is a part of the air duct 3.
A first partition structure 23 is arranged between the outer side wall of the inner layer structure 21 and the inner side wall of the outer layer structure 22, as shown in fig. 2 and fig. 3, the surface of the first partition structure 23 is transversely arranged, that is, the surface of the first partition structure 23 is substantially parallel to the bottom of the inner layer structure 21 or the outer layer structure 22, the first partition structure 23 is arranged along the whole circumferential direction of the inner layer structure 21, the first partition structure 23 is hermetically connected with the inner layer structure 21 and the outer layer structure 22, the first partition structure 23 divides the air duct 3 into a circumferential air duct 31 at the upper part and a bottom air duct 32 at the lower part, the circumferential air duct 31 is arranged along the whole circumferential direction of the inner layer structure 21 and is arranged above the first partition structure 23, and the bottom air duct 32 is arranged at the bottom of the inner layer structure 21, and is located below said first baffle structure 23.
As shown in fig. 2 and fig. 1, the air inlet 5 includes a bottom air inlet 51 located at a lower portion of the outer layer structure 22 and a circumferential air inlet 52 located at an upper portion of the outer layer structure 22, the air outlet 4 includes a bottom air outlet 41 located at a lower portion of the outer layer structure 22 and a circumferential air outlet 42 located at an upper portion of the outer layer structure 22, the bottom air inlet 51 and the bottom air outlet 41 are located below the first partition structure 23, the circumferential air inlet 52 and the circumferential air outlet 42 are located above the first partition structure 23, the bottom air inlet 51 and the bottom air outlet 41 are oppositely disposed at two sides of the outer layer structure 22, and the circumferential air inlet 52 and the circumferential air outlet 42 are oppositely disposed at two sides of the outer layer structure 22.
Under the action of one fan, one air flow enters from the circumferential air inlet 52 and is discharged from the circumferential air outlet 42 through the circumferential air duct 31, and under the action of the other fan, the other air flow enters from the bottom air inlet 41 and is discharged from the bottom air outlet 41 through the bottom air duct 32.
Be provided with first heat dissipation rib 211 on inner layer structure 21's the lateral wall, as shown in fig. 1, first heat dissipation rib 211 is followed inner layer structure 21's circumference extends, preferably, first heat dissipation rib 211 is snakelike, be provided with second heat dissipation rib 212 on inner layer structure 21's the outer diapire, as shown in fig. 2, second heat dissipation rib 212 is in bottom air intake 51 with extend between bottom air outlet 41, second heat dissipation rib 212 is in extend between outer structure 22's both sides, first heat dissipation rib 211 with second heat dissipation rib 212 can increase heat transfer area between inner layer structure 21 and the air current, and then increase inner layer structure 21's radiating rate, the radiating effect and the radiating efficiency of battery box increase.
As shown in fig. 4 to 7, the cover body 1 includes an upper cover 11 and a lower cover 12, the upper cover 11 is hermetically connected with the outer layer structure 22, the lower cover 12 is hermetically connected with the inner layer structure 21, a support column 121 is disposed at the top of the lower cover 12, the bottom wall of the upper cover 11 abuts against the support column 121, the upper cover 11 and the lower cover 12 are of a split structure, and the connection between the upper cover 11 and the outer layer structure 22 and the connection between the lower cover 12 and the inner layer structure 21 are not interfered with each other by the upper cover 11 and the lower cover 12 of the split structure.
The vehicle comprises the battery box for the vehicle, the heat dissipation effect and the heat dissipation efficiency of the battery box in the vehicle are better, and the overall performance of the vehicle is improved.
Example two
The difference between the second embodiment and the first embodiment is the structure of the cover 1.
In this embodiment, as shown in fig. 8 and 9, the cover body 1 includes a top plate 13, and an outer surrounding plate 14 and an inner surrounding plate 15 connected to the top plate 13, where the inner surrounding plate 15 is located inside the outer surrounding plate 14, the inner surrounding plate 15 is connected to the inner structure 21 in a sealing manner, the outer surrounding plate 14 is connected to the outer structure 22 in a sealing manner, the top plate 13, the outer surrounding plate 14, and the inner surrounding plate 15 are integrated into an integrated structure, and the structure of the cover body 1 in the integrated structure can reduce the number of parts.
EXAMPLE III
The third embodiment is a further preferred embodiment of the first embodiment, and the third embodiment is improved by the circumferential air duct 31, the circumferential air inlet 52 and the circumferential air outlet 42.
As shown in fig. 1 to fig. 3, a second partition structure 24 is disposed between an outer side wall of the inner layer structure 21 and an inner side wall of the outer layer structure 22, a surface of the second partition structure 24 is perpendicular to a surface of the first partition structure 23, the second partition structure 24 is disposed substantially parallel to a portion of a side wall of the inner layer structure 21 or the outer layer structure 22, and the second partition structure 24 divides the circumferential air duct 31 into a first circumferential air duct 311 and a second circumferential air duct 312, which are disposed opposite to each other, so that wind resistance of the inner layer structure 21 to air flow in the circumferential air duct can be reduced, and a flow velocity of the air flow in the circumferential air duct 31 can be increased.
The circumferential air inlets 52 include a first circumferential air inlet 521 and a second circumferential air inlet 522 which are located at two sides of the second partition structure 24, the circumferential air outlets 42 include a first circumferential air outlet 421 and a second circumferential air outlet 422 which are located at two sides of the second partition structure 24, the first circumferential air inlet 521 includes two air inlets which are arranged at ends of the first circumferential air duct 311, the first circumferential air outlet 421 includes one air outlet which is arranged in the middle of the first circumferential air duct 311, a fan is arranged at the first circumferential air outlet 421, the second circumferential air inlet 522 includes two air inlets which are arranged at ends of the second circumferential air duct 312, the second circumferential air outlet 422 includes one air outlet which is arranged in the middle of the second circumferential air duct 312, and a fan is arranged at the second circumferential air outlet 422, so that the air inlet amount of the first circumferential air duct 311 and the second circumferential air duct 312 can be increased, the ambient air with lower temperature is supplemented in time, and the air after heat absorption is exhausted in time, so that better heat dissipation effect and heat dissipation efficiency are achieved.
Example four
The difference between the fourth embodiment and the first embodiment is the structure of the outer layer structure 22.
In this embodiment, the cross section of the sidewall of the outer layer 22 is in a wave shape or a saw-tooth shape (not shown in the figure), the wave shape includes a wave trough and a wave crest, the wave trough and the wave crest are arranged at intervals, the wave trough and the wave crest are in an arc shape, the saw-tooth shape includes a concave part and a convex part, the concave part and the convex part are arranged at intervals, and the concave part and the convex part are in a rectangular shape.
It will be readily appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed without conflict.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A vehicle battery box is characterized by comprising a body and a cover body connected with the body, wherein the body comprises an inner layer structure and an outer layer structure arranged outside the inner layer structure, the inner layer structure and the outer layer structure are both barrel-shaped, an air duct is formed between the inner layer structure and the outer layer structure, the outer layer structure is provided with an air inlet and an air outlet, air is exhausted from the air inlet through the air duct and the air outlet,
A first partition plate structure is arranged between the outer side wall of the inner layer structure and the inner side wall of the outer layer structure, the first partition plate structure is transversely arranged, and the first partition plate structure divides the air duct into a circumferential air duct at the upper part and a bottom air duct at the lower part;
the air inlet comprises a bottom air inlet positioned at the lower part of the outer layer structure and a circumferential air inlet positioned at the upper part of the outer layer structure;
the air outlet comprises a bottom air outlet positioned at the lower part of the outer layer structure and a circumferential air outlet positioned at the upper part of the outer layer structure,
a second partition plate structure is arranged between the outer side wall of the inner layer structure and the inner side wall of the outer layer structure, the surface of the second partition plate structure is vertical to the surface of the first partition plate structure, and the second partition plate structure divides the circumferential air channel into a first circumferential air channel and a second circumferential air channel which are arranged oppositely;
the circumferential air inlets comprise a first circumferential air inlet and a second circumferential air inlet which are positioned at two sides of the second partition plate;
the circumferential air outlet comprises a first circumferential air outlet and a second circumferential air outlet which are positioned at two sides of the second clapboard,
the first circumferential air inlet comprises two air inlets arranged at the end part of the first circumferential air channel, the first circumferential air outlet comprises one air outlet arranged in the middle of the first circumferential air channel, and a fan is arranged at the first circumferential air outlet; and/or the presence of a gas in the atmosphere,
The second circumferential air inlet comprises two air inlets arranged at the end parts of the second circumferential air duct, the second circumferential air outlet comprises one air outlet arranged in the middle of the second circumferential air duct, and a fan is arranged at the second circumferential air outlet.
2. The vehicle battery box according to claim 1, wherein a first heat dissipation rib is provided on an outer side wall of the inner layer structure, the first heat dissipation rib extending in a circumferential direction of the inner layer structure.
3. The vehicle battery box of claim 1, wherein a second heat dissipating rib is disposed on an outer bottom wall of the inner layer structure, the second heat dissipating rib extending between the bottom air inlet and the bottom air outlet.
4. The vehicle battery box according to claim 1, wherein a cross section of the side wall of the outer layer structure is wavy or zigzag.
5. The vehicle battery box of claim 1, wherein the cover body comprises an upper cover and a lower cover, the upper cover is sealingly connected to the outer layer structure, and the lower cover is sealingly connected to the inner layer structure.
6. The vehicle battery box according to claim 1, wherein the lid body includes a top panel, and an outer panel and an inner panel that are connected to the top panel, the inner panel being located inside the outer panel, the inner panel being sealingly connected to the inner structure, and the outer panel being sealingly connected to the outer structure.
7. A vehicle characterized by comprising the vehicular battery box according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811274021.7A CN109473581B (en) | 2018-10-30 | 2018-10-30 | Battery box for vehicle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811274021.7A CN109473581B (en) | 2018-10-30 | 2018-10-30 | Battery box for vehicle and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109473581A CN109473581A (en) | 2019-03-15 |
| CN109473581B true CN109473581B (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811274021.7A Active CN109473581B (en) | 2018-10-30 | 2018-10-30 | Battery box for vehicle and vehicle |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091798A (en) * | 2017-12-07 | 2018-05-29 | 珠海格力精密模具有限公司 | A kind of battery case |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202183427U (en) * | 2011-07-29 | 2012-04-04 | 深圳市沃特玛电池有限公司 | Battery box with good ventilating and radiating performances |
| KR101301559B1 (en) * | 2013-01-16 | 2013-09-04 | 주식회사 이브텍 | Battery case |
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2018
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091798A (en) * | 2017-12-07 | 2018-05-29 | 珠海格力精密模具有限公司 | A kind of battery case |
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| CN109473581A (en) | 2019-03-15 |
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