CN109244302A - Battery pack structure - Google Patents
Battery pack structure Download PDFInfo
- Publication number
- CN109244302A CN109244302A CN201811221071.9A CN201811221071A CN109244302A CN 109244302 A CN109244302 A CN 109244302A CN 201811221071 A CN201811221071 A CN 201811221071A CN 109244302 A CN109244302 A CN 109244302A
- Authority
- CN
- China
- Prior art keywords
- heat
- liquid cooling
- lid
- battery modules
- pipe
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 238000001816 cooling Methods 0.000 claims abstract description 52
- 239000002826 coolant Substances 0.000 claims abstract description 8
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000110 cooling liquid Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000012782 phase change material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of battery pack structures, including shell and it is arranged in the intracorporal battery modules of the shell, the enclosure interior is provided with conductive structure, the conductive structure is used to export the heat that the battery modules generate, the hull outside is provided with liquid cooling pipe, heat derived from the conductive structure is transferred in the liquid cooling pipe by the shell, and the cooling medium by circulating in the liquid cooling pipe takes away heat.Battery pack structure provided by the invention, the heat that conductive structure is used to export battery modules generation is set in shell, and liquid cooling pipe is set in hull outside, heat is transferred on cooling liquid tube by conductive structure by shell, and the coolant liquid by circulating in liquid cooling pipe takes away heat, keeps the heat dissipation effect of battery pack more preferable.Also, liquid cooling pipe and battery modules are separately positioned on shell outwardly and inwardly, battery modules and liquid cooling pipe is isolated in shell, and liquid cooling pipe leakage is avoided to damage battery modules.
Description
Technical field
The present invention relates to battery correlative technology field, especially a kind of battery pack structure.
Background technique
Existing battery pack generallys use air-cooled or liquid cooling pipe is placed on liquid cooling inside battery case and is set between battery
The mode for setting heat pipe cools down battery, prevents battery charge and discharge process medium temperature from spending height.
But that there are air-cooling efficiencies is low, installation liquid cooling pipe complex process in battery case, deposits for the cooling structure of above-mentioned battery pack
Lead to battery pack safety reduction in cooling liquid tube rupture, is unfavorable for improving the performance of battery.
Summary of the invention
In view of this, an object of the present invention is to provide a kind of battery pack that can be improved heat dissipation performance and security performance
Structure.
The present invention provides a kind of battery pack structure, including shell and setting in the intracorporal battery modules of the shell, the shell
Body is internally provided with heat-absorbing structure, and the conductive structure is used to absorb the heat that the battery modules generate,
The hull outside is provided with liquid cooling pipe, and the heat that the conductive structure absorbs is transferred to described by the shell
In liquid cooling pipe, and the cooling medium by circulating in the liquid cooling pipe takes away heat.
Preferably, the shell includes cabinet and lid, and the conductive structure includes:
The first heat conducting pipe on the cabinet wall is set, and/or, the second heat conducting pipe on the lid is set.
Preferably, first heat conducting pipe is embedded into the cabinet, and/or, second heat conducting pipe is embedded into described
In lid.
Preferably, the liquid cooling pipe is arranged on the cabinet and/or lid.
Preferably, the conductive structure further include:
First heat-conducting plate, first heat-conducting plate are contacted with the battery modules and first heat conducting pipe, and described first
In the heat transfer that heat-conducting plate generates the battery modules to first heat conducting pipe；And/or
Second heat-conducting plate, second heat-conducting plate are contacted with the battery modules and second heat conducting pipe, and described second
In the heat transfer that heat-conducting plate generates the battery modules to second heat conducting pipe.
Preferably, first heat-conducting plate and/or second conducting plate structure are that can be bonded with the battery modules
Plate structure.
Preferably, the both ends of first heat conducting pipe are contacted with the lid, and the heat that first heat conducting pipe absorbs passes
It is handed on the lid.
Preferably, the liquid cooling pipe is arranged on the lid, inhales first heat conducting pipe and second heat conducting pipe
The heat of receipts is transferred in the liquid cooling pipe by the lid.
Preferably, the liquid cooling pipe is embedded into the lid portion inside.
Preferably, cooling fin is provided on the lid.
The heat that conductive structure is used to absorb battery modules generation is arranged in battery pack structure provided by the invention in shell
Amount, and liquid cooling pipe is set in hull outside, heat is transferred in liquid cooling pipe by conductive structure by shell, and by liquid cooling pipe
The coolant liquid of circulation takes away heat, keeps the heat dissipation effect of battery pack more preferable.Also, liquid cooling pipe and battery modules are respectively set
Liquid cooling pipe leakage can avoided to damage battery modules outwardly and inwardly, can isolate battery modules and liquid cooling pipe.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 shows the configuration schematic diagram of battery pack structure provided by the invention；
Fig. 2 shows the liquid cooling pipe distribution schematic diagrams on cover body structure；
The distribution schematic diagram that Fig. 3,4 show the second heat conducting pipe on lid.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Ability
Domain it is to be appreciated by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and attached drawing be not necessarily by than
What example was drawn.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, be " including but not limited to " contains
Justice.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
It is two or more.
The present invention provides a kind of battery pack structure, as shown in Figure 1, including cabinet 1, lid 2 and battery modules 3, the lid
The shell of the battery pack is formed in the lid conjunction to the cabinet 1 of body 2, forms accommodation space, the battery modules 3 in the shell
It is arranged in the accommodation space.It is provided with anode interface 12, cathode interface 13, communication interface 14 on 1 on the cabinet and prevents
Quick-fried valve 15, the anode interface 12 and the cathode interface 13 are connect with the anode and cathode of the battery modules 3 respectively, described
Explosion-proof valve 15 is used for quick pressure releasing, prevents 1 internal pressure of cabinet is excessively high from exploding.Be additionally provided in the cabinet 1 with
The connected control module 31 of the battery modules 3, the control module 31 are such as right for controlling the battery modules 3
The charge/discharge speed etc. of the battery modules 3 is controlled, and the communication interface 14 is connected with the control module 31, so that institute
Stating control module 31 can be connected with external control component, to realize the control to the battery modules 3.
The enclosure interior is provided with conductive structure, and the conductive structure is used to export the heat that the battery modules 3 generate
Amount.The conductive structure includes the first heat conducting pipe 11 being arranged in the cabinet 1, and first heat conducting pipe 11 is for absorbing institute
State the heat generated in 3 charge and discharge process of battery modules, first heat conducting pipe 11 is provided with multiple, and multiple described first is thermally conductive
Pipe 11 is contacted with the battery modules 3, it is preferable that first heat conducting pipe 11 is embedded into the inside of the cabinet 1.Alternatively, institute
Stating conductive structure further includes the first heat-conducting plate 41 being arranged between first heat conducting pipe 11 and the battery modules 3, described
First heat conducting pipe 41 is contacted with the battery modules 3 and first heat conducting pipe 11, will be described by first heat-conducting plate 41
To first heat conducting pipe 11, first heat-conducting plate 41 connects the heat transfer that battery modules 3 generate with the battery modules 3
Contacting surface product is bigger, to guarantee the heat that more uniform described 3 each section of battery modules of absorption generates.Preferably, institute
Stating the first heat-conducting plate 41 is the preferable material of heating conduction, for example, first heat-conducting plate 41 can be high-termal conductivity and insulation
Phase-change material, can specifically select covert composite material of paraffin composite material, graphite etc., the preferably covert composite wood of graphite
Material.Further, the construction of first heat-conducting plate 41 is the plate structure being adapted to the surface shape of the battery modules 3,
First heat-conducting plate 41 is fitted in the battery modules 3, in the present embodiment, 41 structure of the first heat-conducting plate
It makes as slab construction, is fitted on the bottom wall of the battery modules 3, in other embodiments, first heat-conducting plate 41 may be used also
It is contacted simultaneously with the bottom wall of the battery modules 3 and side wall, to increase endotherm area.
The lid of lid 2 is closed onto the cabinet 1, and the cabinet 1 and the lid 2 contact, and the cabinet 1 is preferably
It is made of the preferable material of heating conduction, the cabinet 1 is preferably metal material, for example, aluminum alloy material.The lid 2 with
The cabinet 1 contacts the heat that first heat conducting pipe 11 is absorbed and is transferred to the lid 2 by the cabinet 1
On, alternatively, extending at the both ends of first heat conducting pipe 11 on the face contacted with the lid 2, make first heat conducting pipe
11 heats absorbed can be more easily transmitted on the lid 2.
The lid 2 is made of the preferable material of heating conduction, and the lid 2 is preferably metal material, such as can be
Aluminum alloy material, the hull outside are provided with liquid cooling pipe, and as shown in Figure 1, 2, the liquid cooling pipe 21 is arranged in the lid 2
On, the liquid cooling pipe 21 includes arrival end 211 and outlet end 212, the arrival end 211 and the outlet end 212 and coolant liquid
Circulation line connection, enables coolant liquid to circulate in the liquid cooling pipe 21, to take away heat.The liquid cooling pipe 21 is arranged
On the lid 2 far from the cabinet 1 face on, i.e., the described liquid cooling pipe 21 be located at the lid 2 and the cabinet 1 composition
The outside of accommodating chamber, to guarantee to cause to damage to the battery modules 3 when the failures such as leakage occur for the liquid cooling pipe 21
It is bad.As shown in Fig. 2, the liquid cooling pipe 21 serpentine-like bending setting on the lid 2, to increase it and be set on the lid 2
The length set, it is preferable that the liquid cooling pipe 21 is embedded into the lid 2, to increase the liquid cooling pipe 21 and the lid 2
Contact area.Further, it is provided with fin in the liquid cooling pipe 21, to further increase itself and heat dissipation effect, alternatively, may be used also
The structures such as the cooling fin for being capable of increasing heat dissipation area to be arranged on the lid 2, increase the contact surface of the lid 2 and air
Product.
As shown in Figure 3,4, the conductive structure further includes that the lid 2 is arranged on the face of the battery modules 3
The second heat conducting pipe 22, i.e., described second heat conducting pipe 22 is located at the interior of the accommodating chamber that the lid 2 and the cabinet 1 are constituted
Side, second heat conducting pipe 22 are embedded into described for absorbing the heat that the battery modules 3 distribute, second heat conducting pipe 22
The inside of lid 2.Second heat conducting pipe 22 can be multiple as being set in parallel to each other as shown in Figure 3, and multiple described
Two heat conducting pipes 22 are along linear extension, alternatively, second heat conducting pipe 22 can also be as being set as bending or curved as shown in Figure 4
The pipe of folded structure can be L-shaped structure or the structure of other arbitrary shapes.Preferably, as shown in Figure 1, the lid 2 and described
The second heat-conducting plate 42, second heat-conducting plate 42 and second heat conducting pipe 22 and the battery are provided between battery modules 3
Mould group 3 contacts, the heat transfer that second heat-conducting plate 42 is used to generate the battery modules 3 to second heat conducting pipe
22, second heat-conducting plate 42 and the contact area of the battery modules 3 are bigger, to guarantee more uniform absorption institute
State the heat of 3 each section of battery modules generation.Preferably, second heat-conducting plate 42 is the preferable material of heating conduction, for example,
Second heat-conducting plate 42 can be high-termal conductivity and the phase-change material of insulation, can specifically select paraffin composite material, graphite
Covert composite material etc., the preferably covert composite material of graphite.Further, the construction of second heat-conducting plate 42 be with it is described
The plate structure of the surface shape adaptation of battery modules 3, enables second heat-conducting plate 42 to be fitted in the battery modules 3
On, in the present embodiment, second heat-conducting plate 42 is configured to slab construction, is fitted on the roof of the battery modules 3.
Preferably, it in order to further increase the heat dissipation performance of the battery pack, can also be also provided on the cabinet 1 cold
Liquid pipe, and absorb by the liquid cooling pipe on the cabinet 1 heat of first heat conducting pipe 11.
The outside of cabinet is arranged in liquid cooling pipe by battery pack structure provided by the invention, it is isolated with battery modules, from
And avoid liquid cooling pipe that from damaging to battery modules when the failures such as leakage occur.Also, using the heating conduction of lid, by the
The heat that one heat conducting pipe and the second heat conducting pipe absorb can be absorbed by the coolant liquid in liquid cooling pipe, have the function that heat dissipation,
Improve the heat dissipation effect of battery pack.
Those skilled in the art will readily recognize that above-mentioned each preferred embodiment can be free under the premise of not conflicting
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from of the invention basic
In the case where principle, those skilled in the art can be directed to the various apparent or equivalent modification or replace that above-mentioned details is made
It changes, is all included in scope of the presently claimed invention.
Claims (10)
1. a kind of battery pack structure, which is characterized in that including shell and be arranged in the intracorporal battery modules of the shell, the shell
It is internally provided with conductive structure, the conductive structure is used to export the heat that the battery modules generate,
The hull outside is provided with liquid cooling pipe, and heat derived from the conductive structure is transferred to the liquid cooling by the shell
Guan Shang, and the cooling medium by circulating in the liquid cooling pipe takes away heat.
2. battery pack structure according to claim 1, which is characterized in that the shell includes cabinet and lid, described to lead
Heat structure includes:
The first heat conducting pipe on the cabinet wall is set, and/or, the second heat conducting pipe on the lid is set.
3. battery pack structure according to claim 2, which is characterized in that first heat conducting pipe is embedded into the cabinet
It is interior, and/or, second heat conducting pipe is embedded into the lid.
4. battery pack structure according to claim 2, which is characterized in that liquid cooling pipe setting in the cabinet and/or
On lid.
5. battery pack structure according to claim 2, which is characterized in that the conductive structure further include:
First heat-conducting plate, first heat-conducting plate are contacted with the battery modules and first heat conducting pipe, and described first is thermally conductive
In the heat transfer that plate generates the battery modules to first heat conducting pipe；And/or
Second heat-conducting plate, second heat-conducting plate are contacted with the battery modules and second heat conducting pipe, and described second is thermally conductive
In the heat transfer that plate generates the battery modules to second heat conducting pipe.
6. battery pack structure according to claim 5, which is characterized in that first heat-conducting plate and/or described second lead
Hot plate is configured to the plate structure being bonded with the battery modules.
7. battery pack structure according to claim 2, which is characterized in that the both ends of first heat conducting pipe and the lid
It contacts, in the heat transfer to the lid that first heat conducting pipe absorbs.
8. battery pack structure according to claim 7, which is characterized in that the liquid cooling pipe is arranged on the lid, makes
The heat that first heat conducting pipe and second heat conducting pipe absorb is transferred in the liquid cooling pipe by the lid.
9. battery pack structure according to claim 8, which is characterized in that the liquid cooling pipe is embedded into the lid portion inside.
10. the battery pack structure according to one of claim 2-9, which is characterized in that be provided with cooling fin on the lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221071.9A CN109244302A (en) | 2018-10-19 | 2018-10-19 | Battery pack structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221071.9A CN109244302A (en) | 2018-10-19 | 2018-10-19 | Battery pack structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109244302A true CN109244302A (en) | 2019-01-18 |
Family
ID=65080687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811221071.9A Pending CN109244302A (en) | 2018-10-19 | 2018-10-19 | Battery pack structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109244302A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190356A (en) * | 2019-05-31 | 2019-08-30 | 江西理工大学 | A kind of new-energy automobile power battery pallet with heat-pipe radiating apparatus |
| CN110459835A (en) * | 2019-08-20 | 2019-11-15 | 广东工业大学 | A kind of power battery heat-radiating device |
| CN111668405A (en) * | 2019-03-08 | 2020-09-15 | 比亚迪股份有限公司 | Battery pack and vehicle with same |
| CN111987382A (en) * | 2020-08-18 | 2020-11-24 | 深圳市道通智能航空技术有限公司 | Unmanned aerial vehicle ground base station's battery cooling module and unmanned aerial vehicle ground base station |
| WO2020252848A1 (en) * | 2019-06-21 | 2020-12-24 | 比亚迪股份有限公司 | Power battery pack and vehicle |
| WO2020252850A1 (en) * | 2019-06-21 | 2020-12-24 | 比亚迪股份有限公司 | Power battery pack and vehicle |
| CN112909413A (en) * | 2021-01-15 | 2021-06-04 | 顾智荟 | Battery modularization battery rack easy to radiate |
| CN114300793A (en) * | 2020-09-23 | 2022-04-08 | 比亚迪股份有限公司 | Battery pack shell, battery pack and vehicle |
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| CN204130662U (en) * | 2014-09-04 | 2015-01-28 | 惠州市亿能电子有限公司 | A kind of heat abstractor of batteries of electric automobile module |
| CN204289553U (en) * | 2014-10-24 | 2015-04-22 | 北汽福田汽车股份有限公司 | A kind of water-cooled cells bag |
| CN205543147U (en) * | 2016-01-26 | 2016-08-31 | 湖南科霸汽车动力电池有限责任公司 | Liquid cooling battery package |
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| CN207338575U (en) * | 2017-09-26 | 2018-05-08 | 比亚迪股份有限公司 | A kind of battery case cooling system and vehicle |
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| CN204130662U (en) * | 2014-09-04 | 2015-01-28 | 惠州市亿能电子有限公司 | A kind of heat abstractor of batteries of electric automobile module |
| CN204289553U (en) * | 2014-10-24 | 2015-04-22 | 北汽福田汽车股份有限公司 | A kind of water-cooled cells bag |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668405A (en) * | 2019-03-08 | 2020-09-15 | 比亚迪股份有限公司 | Battery pack and vehicle with same |
| CN110190356A (en) * | 2019-05-31 | 2019-08-30 | 江西理工大学 | A kind of new-energy automobile power battery pallet with heat-pipe radiating apparatus |
| WO2020252848A1 (en) * | 2019-06-21 | 2020-12-24 | 比亚迪股份有限公司 | Power battery pack and vehicle |
| WO2020252850A1 (en) * | 2019-06-21 | 2020-12-24 | 比亚迪股份有限公司 | Power battery pack and vehicle |
| CN110459835A (en) * | 2019-08-20 | 2019-11-15 | 广东工业大学 | A kind of power battery heat-radiating device |
| CN111987382A (en) * | 2020-08-18 | 2020-11-24 | 深圳市道通智能航空技术有限公司 | Unmanned aerial vehicle ground base station's battery cooling module and unmanned aerial vehicle ground base station |
| CN114300793A (en) * | 2020-09-23 | 2022-04-08 | 比亚迪股份有限公司 | Battery pack shell, battery pack and vehicle |
| CN114300793B (en) * | 2020-09-23 | 2023-11-14 | 比亚迪股份有限公司 | Battery pack shell, battery pack and vehicle |
| CN112909413A (en) * | 2021-01-15 | 2021-06-04 | 顾智荟 | Battery modularization battery rack easy to radiate |
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