CN207818836U - Battery modules, heat-conducting piece and battery pack - Google Patents

Battery modules, heat-conducting piece and battery pack Download PDF

Info

Publication number
CN207818836U
CN207818836U CN201721287230.6U CN201721287230U CN207818836U CN 207818836 U CN207818836 U CN 207818836U CN 201721287230 U CN201721287230 U CN 201721287230U CN 207818836 U CN207818836 U CN 207818836U
Authority
CN
China
Prior art keywords
heat
conductive pad
battery
heat conductive
conducting 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.)
Active
Application number
CN201721287230.6U
Other languages
Chinese (zh)
Inventor
吴俊甫
王洪军
谈际刚
鄂从吉
陈伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Priority to CN201721287230.6U priority Critical patent/CN207818836U/en
Application granted granted Critical
Publication of CN207818836U publication Critical patent/CN207818836U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Secondary Cells (AREA)

Abstract

The utility model discloses a kind of battery modules, heat-conducting piece and battery pack, battery modules include:Multiple battery cores;Heat-conducting piece, the heat-conducting piece are disposed adjacent with the multiple battery core and include:Heat conductive pad and heat conducting pipe, the heat conducting pipe are embedded at the heat conductive pad.Heat conducting pipe can be in direct contact with battery core as a result, and flowing has the preferable with the heat transfer effect of battery core of the heat conducting pipe of heat transferring medium, contact area in this way between heat conducting pipe and battery core is big, and when heat transferring medium is liquid, cooling effect is notable, thereby may be ensured that and is sufficiently cooled to battery core.

Description

Battery modules, heat-conducting piece and battery pack
Technical field
The utility model is related to battery technology field more particularly to a kind of battery modules, heat-conducting piece and there is the battery The battery pack of module.
Background technology
Electric vehicle in battery discharge or charging process due to that can generate heat at present, and power battery pack generally seals knot Structure, power battery pack internal air stream moment, heat transfer efficiency is low, and temperature of powered cell is caused to increase, and influences the cycle longevity of battery Life.
If it is poor only with the cooling effect of air-cooled scheme, and can only be could be to battery in automotive discharge driving process Cooling, limit by operating mode require it is larger, it is difficult to really guarantee the ideal operating temperature of battery.Existing liquid cooling scheme, due to changing The reasons such as hot area is small, heat exchange efficiency is low, and also unobvious, temperature fall time are long for cooling-down effect.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality With a kind of battery modules of novel proposition, the good effect of heat exchange of the battery modules, battery core can the charge and discharge under preferable operating temperature Electricity.
The utility model further proposes a kind of heat-conducting piece.
The utility model further proposes a kind of battery pack.
Battery modules according to the present utility model, including:Multiple battery cores;Heat-conducting piece, the heat-conducting piece and the multiple electricity Core is disposed adjacent and includes:Heat conductive pad and heat conducting pipe, the heat conducting pipe are embedded at the heat conductive pad.
Battery modules according to the present utility model, heat conducting pipe can be in direct contact with battery core, and flowing has leading for heat transferring medium Heat pipe it is preferable with the heat transfer effect of battery core, the contact area between such heat conducting pipe and battery core is big, and is in heat transferring medium When liquid, cooling effect is notable, thereby may be ensured that and is sufficiently cooled to battery core.
In some examples of the utility model, the heat conductive pad is multiple and includes:First heat conductive pad, described first leads Heat pad is set between two adjacent battery cores, and the first heat conducting pipe is embedded in first heat conductive pad.
In some examples of the utility model, multiple first heat conducting pipes are connected in series or in parallel.
In some examples of the utility model, the import of multiple first heat conducting pipes is located on a straight line and exports position It is connected with connecting tube between being connected with the adjacent outlet of connecting tube on another straight line, and between adjacent import, is located at one end First heat conducting pipe import be connected with water inlet interface and outlet be connected with water outlet mouthpiece.
In some examples of the utility model, the outer surface of the battery core on the outermost side is correspondingly arranged on described One heat conductive pad.
In some examples of the utility model, the heat conductive pad further includes:Second heat conductive pad, second heat conducting pipe position In being embedded with the second heat conducting pipe in the lower section of multiple battery cores, second heat conductive pad.
In some examples of the utility model, the both sides up and down of second heat conductive pad are respectively arranged with isolation heat conduction Pad.
In some examples of the utility model, the heat conductive pad further includes:Third heat conductive pad, third heat conductive pad position Multiple battery cores installations are limited in the top of multiple battery cores and with second heat conductive pad and multiple first heat conductive pads Slot, the multiple battery core are respectively arranged at the multiple battery core mounting groove.
In some examples of the utility model, the heat conducting pipe, which wriggles, to be extended.
In some examples of the utility model, the surface of the heat conducting pipe towards the battery core is plane.
In some examples of the utility model, the thickness of the heat conducting pipe is identical as the thickness of the heat conductive pad.
Heat-conducting piece according to the present utility model, including:Heat conductive pad and heat conducting pipe, the heat conducting pipe are embedded at the heat conduction Pad.
In some examples of the utility model, the heat conductive pad is multiple and includes:First to third heat conductive pad, described First heat conductive pad is set between two adjacent battery cores, and second heat conducting pipe is located at the lower section of multiple battery cores, the third Heat conductive pad is located at the top of multiple battery cores, the third heat conductive pad, second heat conductive pad and multiple first heat conduction Pad limits multiple battery core mounting grooves, and the multiple battery core is respectively arranged at the multiple battery core mounting groove.
Battery pack according to the present utility model, including:Battery tray;The battery modules;Fixing piece, the fixing piece The battery modules are fixed in the battery tray;Sealing cover, the sealing cover are set to the top of the battery modules And it is fixed with the battery tray.
In some examples of the utility model, the fixing piece is press strip, and the battery tray is provided with spaced apart Fixed block, the battery modules are located between the fixed block spaced apart, and the press strip is fixed with the fixed block.
Description of the drawings
Fig. 1 is the structural schematic diagram according to the battery modules of the utility model embodiment;
Fig. 2 is the explosive view according to the battery modules of the utility model embodiment;
Fig. 3 is the explosive view according to the battery pack of the utility model embodiment.
Reference numeral:
Battery modules 10;
Battery core 1;First heat conductive pad 2;First heat conducting pipe 3;Water inlet interface 31;Water outlet mouthpiece 32;
Connecting tube 4;Second heat conductive pad 5;Second heat conducting pipe 6;Heat conductive pad 7 is isolated;Third heat conductive pad 8;
Battery tray 20;Fixing piece 30;Sealing cover 40;Fixed block 50.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings.Below by The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and should not be understood as new to this practicality The limitation of type.
Below with reference to Fig. 1-Fig. 3 detailed descriptions according to the battery modules 10 of the utility model embodiment, the battery modules 10 Applied to battery pack, battery pack, which can be applied, to be used on vehicle as power source.
As depicted in figs. 1 and 2, may include according to the battery modules of the utility model embodiment 10:It multiple battery cores 1 and leads Warmware, heat-conducting piece can play the role of heat conduction and heat exchange.Heat-conducting piece is disposed adjacent with multiple battery cores 1, in this way in battery modules When 10 charge or discharge, the heat that battery core 1 generates can be transmitted to by heat-conducting piece in the external world, thereby may be ensured that battery mould The good heat radiating of group 10.
Heat-conducting piece includes:Heat conductive pad and heat conducting pipe, heat conducting pipe are embedded at heat conductive pad.It should be noted that can in heat conducting pipe It can be gas to have heat transferring medium, heat transferring medium with flowing, or liquid.It is understood that heat conductive pad can be formed It can be straight slot or non-straight slot to have groove-like structure identical with heat conduction tube shape, groove-like structure.Heat conducting pipe can be with battery core 1 It is in direct contact, flowing has the heat conducting pipe of heat transferring medium and the heat transfer effect of battery core 1 preferable, and between heat conducting pipe and battery core 1 Contact area is big, and when heat transferring medium is liquid, cooling effect is notable, thereby may be ensured that and is sufficiently cooled to battery core 1.
Wherein, heat conductive pad can also the heat conduction between battery core 1 and heat conducting pipe, so as to further increase heat-conducting piece with Heat exchange area between battery core 1 can promote the heat dissipation effect of battery modules 10, it is ensured that the operating temperature of battery modules 10 It is suitable.
In addition, the heat conductive pad being arranged such can preferably fix heat conducting pipe, the fixation so as to solve heat conducting pipe is asked Topic, can improve the structural reliability of battery modules 10.In addition, the battery modules 10 being arranged such are not by the operating mode shadow of vehicle It rings, battery core 1 can be cooled down in Vehicular charging, discharge process.If it is desired, can also have heating function, in environment It is heated to battery core 1 when temperature is relatively low, it is applied widely.
Optionally, as depicted in figs. 1 and 2, heat conducting pipe, which wriggles, extends.The heat conducting pipe extended that wriggles can be conducive to itself and electricity 1 side wall of core comes into full contact with, so that it is uniform to exchange heat between 1 side wall of heat conducting pipe and battery core, can further be conducive to 1 temperature of battery core is uniform.
A specific embodiment according to the present utility model, as depicted in figs. 1 and 2, heat conductive pad are multiple, and multiple are led Heat pad includes:First heat conductive pad 2, the first heat conductive pad 2 are set between two adjacent battery cores 1, are embedded in the first heat conductive pad 2 First heat conducting pipe 3.That is, can be with sandwiched there are one heat-conducting piece between two adjacent battery cores 1, which includes first Heat conductive pad 2 and the first heat conducting pipe 3, such two battery cores 1 can share a heat-conducting piece, the heat-conducting piece can effectively with both sides Battery core 1 carries out heat conduction, can effectively reduce the temperature of battery modules 10, and the battery modules 10 being arranged such can to lead Warmware quantity is suitable, and overall volume is suitable.
Optionally, as depicted in figs. 1 and 2, multiple first heat conducting pipes 3 are connected in series or in parallel.Thus, it is possible to so that more A first heat conducting pipe 3 connects simple and smooth, can reduce the arrangement difficulty of heat transferring medium source of supply in this way.
Specifically, as shown in Figure 1, the import of multiple first heat conducting pipes 3 is located on a straight line, and multiple first heat conducting pipes 3 outlet is located on another straight line, is connected with connecting tube 4 between adjacent import and between outlet, is located at the first of one end The import of heat conducting pipe 3 is connected with water inlet interface 31, and outlet is connected with water outlet mouthpiece 32.Multiple first heat conducting pipes 3 as a result, It can be connected in parallel, such connecting tube 4 can effectively connect two adjacent the first heat conducting pipes 3, so that first leads Heat transferring medium flowing nature and smooth in heat pipe 3.
Another specific embodiment according to the present utility model, as shown in Fig. 2, heat conductive pad further includes:Second heat conductive pad 5, Second heat conducting pipe 6 is located at the lower section of multiple battery cores 1, and the second heat conducting pipe 6 is embedded in the second heat conductive pad 5.That is, battery core 1 Lower section heat-conducting piece can also be set, heat-conducting piece includes that the second heat conducting pipe 6 and the second heat conductive pad 5, the bottom wall of such battery core 1 also may be used Fully to exchange heat with the second heat conducting pipe 6 and the second heat conductive pad 5, it thereby may be ensured that the operating temperature of battery modules 10 is suitable Preferably.
Optionally, as shown in Fig. 2, the both sides up and down of the second heat conductive pad 5 are respectively arranged with isolation heat conductive pad 7.Heat conduction is isolated Pad 7 will effectively can be spaced apart between battery core 1 and the second heat conducting pipe 6, what this occurred leaking electricity after battery core 1 can also be avoided to leak Phenomenon, and the structural strength that heat conductive pad 7 can also improve battery modules 10 at least to some extent is isolated.In addition, isolation is led Heat pad 7 can also avoid battery core 1 from damaging the second heat conducting pipe 6 by pressure, so as to the second heat conducting pipe of effective protection 6.It should be noted that Isolation heat conductive pad 7 can play the role of two of isolation and heat conduction.
Further, as shown in Figure 1, heat conductive pad can also include:Third heat conductive pad 8, third heat conductive pad 8 are located at multiple electricity The top of core 1, and third heat conductive pad 8 and the second heat conductive pad 5 and multiple first heat conductive pads 2 limit multiple battery core mounting grooves, Multiple battery cores 1 are respectively arranged at multiple battery core mounting grooves.The first heat conductive pad 2, the second heat conductive pad 5 and third heat conductive pad 8 can as a result, To be combined with each other, so as to limit multiple battery core mounting grooves, such battery core 1 can be placed in battery core mounting groove, to It can ensure the installation reliability of battery core 1.
Optionally, as shown in Fig. 2, the surface of heat conducting pipe towards battery core 1 is plane.Heat conducting pipe with plane as a result, Contact area between battery core 1 is larger, thereby may be ensured that the heat exchange area between heat conducting pipe and battery core 1, and then can protect The heat transfer effect between heat conducting pipe and battery core 1 is demonstrate,proved, the operating temperature of battery modules 10 can be made suitable.
Wherein, the thickness of heat conducting pipe can be identical with the thickness of heat conductive pad.Thus, it is possible to improve heat conducting pipe in heat conductive pad Installation reliability, and the heat conducting pipe and heat conductive pad being arranged such can ensure its coming into full contact with battery core 1, so as to Further improve the heat transfer effect between heat-conducting piece and battery core 1.
As shown in figure 3, according to the battery pack of the utility model embodiment, include the electricity of battery tray 20, above-described embodiment Battery modules 10 are fixed in battery tray 20 by pond module 10, fixing piece 30 and sealing cover 40, fixing piece 30, sealing cover 40 It is set to the top of battery modules 10, and sealing cover 40 is fixed with battery tray 20.Battery modules 10 can be with firm solid as a result, It is scheduled in battery tray 20, battery tray 20 and sealing cover 40 can preferably protect battery modules 10, and then can ensure electricity The functional reliability of Chi Bao.
Wherein, as shown in figure 3, fixing piece 30 can be press strip, battery tray 20 is provided with fixed block 50 spaced apart, electricity Pond module 10 is located between fixed block 50 spaced apart, and press strip is fixed with fixed block 50.Fixed block 50 can play pre- limit Effect, can ensure installation site of the battery modules 10 in battery tray 20 in this way, and fixing piece 30 can also and press strip Secure fit, such press strip can preferably limit the position of battery modules 10, thereby may be ensured that battery modules 10 in battery Installation reliability in pallet 20.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into Row combines and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model Inside it can make changes, modifications, alterations, and variations to the above described embodiments.

Claims (14)

1. a kind of battery modules, which is characterized in that including:
Multiple battery cores;
Heat-conducting piece, the heat-conducting piece are disposed adjacent with the multiple battery core and include:Heat conductive pad and heat conducting pipe, the heat conducting pipe are embedding Set on the heat conductive pad.
2. battery modules according to claim 1, which is characterized in that the heat conductive pad is multiple and includes:First heat conduction Pad, first heat conductive pad are set between two adjacent battery cores, and the first heat conduction is embedded in first heat conductive pad Pipe.
3. battery modules according to claim 2, which is characterized in that multiple first heat conducting pipe serial or parallel connections connect It connects.
4. battery modules according to claim 3, which is characterized in that the import of multiple first heat conducting pipes is located at always On line and outlet is connected with connection between being connected with the adjacent outlet of connecting tube on another straight line, and between adjacent import Pipe, the import positioned at first heat conducting pipe of one end is connected with water inlet interface and outlet is connected with water outlet mouthpiece.
5. battery modules according to claim 2, which is characterized in that the outer surface of the battery core on the outermost side corresponds to It is provided with first heat conductive pad.
6. battery modules according to claim 2, which is characterized in that the heat conductive pad further includes:Second heat conductive pad, it is described Second heat conducting pipe is located at the lower section of multiple battery cores, and the second heat conducting pipe is embedded in second heat conductive pad.
7. battery modules according to claim 6, which is characterized in that the both sides up and down of second heat conductive pad are respectively set There is isolation heat conductive pad.
8. battery modules according to claim 6, which is characterized in that the heat conductive pad further includes:Third heat conductive pad, it is described Third heat conductive pad is located at the top of multiple battery cores and is limited with second heat conductive pad and multiple first heat conductive pads Multiple battery core mounting grooves, the multiple battery core are respectively arranged at the multiple battery core mounting groove.
9. according to the battery modules described in any one of claim 1-7, which is characterized in that the heat conducting pipe is towards the battery core Surface be plane.
10. according to the battery modules described in any one of claim 1-7, which is characterized in that the thickness of the heat conducting pipe is less than Equal to the thickness of the heat conductive pad.
11. a kind of heat-conducting piece, which is characterized in that including:Heat conductive pad and heat conducting pipe, the heat conducting pipe are embedded at the heat conductive pad.
12. heat-conducting piece according to claim 11, which is characterized in that the heat conductive pad is multiple and includes:First to Three heat conductive pads, first heat conductive pad are set between two adjacent battery cores, and second heat conducting pipe is located at multiple battery cores Lower section, the third heat conductive pad are located at the top of multiple battery cores, the third heat conductive pad, second heat conductive pad and multiple First heat conductive pad limits multiple battery core mounting grooves, and the multiple battery core is respectively arranged at the multiple battery core mounting groove.
13. a kind of battery pack, which is characterized in that including:
Battery tray;
According to the battery modules described in any one of claim 1-10;
The battery modules are fixed in the battery tray by fixing piece, the fixing piece;
Sealing cover, the sealing cover are set to the top of the battery modules and are fixed with the battery tray.
14. battery pack according to claim 13, which is characterized in that the fixing piece is press strip, and the battery tray is set It is equipped with fixed block spaced apart, the battery modules are located between the fixed block spaced apart, the press strip and the fixation Block is fixed.
CN201721287230.6U 2017-09-30 2017-09-30 Battery modules, heat-conducting piece and battery pack Active CN207818836U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721287230.6U CN207818836U (en) 2017-09-30 2017-09-30 Battery modules, heat-conducting piece and battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721287230.6U CN207818836U (en) 2017-09-30 2017-09-30 Battery modules, heat-conducting piece and battery pack

Publications (1)

Publication Number Publication Date
CN207818836U true CN207818836U (en) 2018-09-04

Family

ID=63336778

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721287230.6U Active CN207818836U (en) 2017-09-30 2017-09-30 Battery modules, heat-conducting piece and battery pack

Country Status (1)

Country Link
CN (1) CN207818836U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109802167A (en) * 2019-01-28 2019-05-24 深圳市嘉名科技有限公司 Battery modules, battery pack, electric vehicle and network system
CN110281736A (en) * 2019-06-25 2019-09-27 北京工业大学 A kind of electric car integrated heat management system based on eddy-current brake heating
CN111564589A (en) * 2020-05-29 2020-08-21 蜂巢能源科技有限公司 Battery pack
CN112201895A (en) * 2019-01-09 2021-01-08 比亚迪股份有限公司 Power battery pack, energy storage device and electric vehicle
CN113067049A (en) * 2019-12-26 2021-07-02 奥动新能源汽车科技有限公司 Automatic temperature control assembly, battery replacement station and energy storage station
US11955651B2 (en) 2019-01-09 2024-04-09 Byd Company Limited Power battery pack and electric vehicle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112201895A (en) * 2019-01-09 2021-01-08 比亚迪股份有限公司 Power battery pack, energy storage device and electric vehicle
CN112201895B (en) * 2019-01-09 2023-03-14 比亚迪股份有限公司 Power battery pack, energy storage device and electric vehicle
US11955651B2 (en) 2019-01-09 2024-04-09 Byd Company Limited Power battery pack and electric vehicle
US12068492B2 (en) 2019-01-09 2024-08-20 Byd Company Limited Power battery pack and electric vehicle
CN109802167A (en) * 2019-01-28 2019-05-24 深圳市嘉名科技有限公司 Battery modules, battery pack, electric vehicle and network system
CN110281736A (en) * 2019-06-25 2019-09-27 北京工业大学 A kind of electric car integrated heat management system based on eddy-current brake heating
CN113067049A (en) * 2019-12-26 2021-07-02 奥动新能源汽车科技有限公司 Automatic temperature control assembly, battery replacement station and energy storage station
CN111564589A (en) * 2020-05-29 2020-08-21 蜂巢能源科技有限公司 Battery pack
CN111564589B (en) * 2020-05-29 2022-05-27 蜂巢能源科技有限公司 Battery pack

Similar Documents

Publication Publication Date Title
CN207818836U (en) Battery modules, heat-conducting piece and battery pack
CN102709618B (en) Microchannel cooling temperature equalizing system for ventilation of lithium battery
CN204947033U (en) Lithium secondary battery module
CN208157586U (en) The radiator and battery modules of battery modules
CN106450570B (en) Battery module and have its vehicle
CN110544753A (en) Novel take liquid cooling module of compound piece of pipeline formula copper nickel
CN206364151U (en) A kind of cold drawing radiator structure for battery modules uniformly transfer heat
WO2019113846A1 (en) Power battery system based on gas-liquid two-phase heat dissipation and heat energy recovery
CN104332673B (en) Battery water-filled radiator
CN210668612U (en) Battery module and battery package
CN208478517U (en) A kind of liquid cooling structure of power battery module
CN207602730U (en) Water-cooled module
CN206312981U (en) Battery box structure
CN110828929A (en) Novel cylindrical electric core liquid cooling module
CN208208934U (en) Battery core group unit and cell apparatus
CN204257782U (en) A kind of high energy density liquid heat radiation and heated power battery system
CN209592256U (en) Battery liquid cooling radiator structure and power supply device
CN206076318U (en) Lithium ion battery structure
CN208570863U (en) A kind of cold, hot two-purpose battery pack heat management structure air-cooled based on phase transformation coupling
CN106602170A (en) Variable contact-type battery heat management system
CN208045580U (en) Battery thermal management system and automobile including it
CN203787535U (en) Total-aluminum heat radiating battery box for passive heat management of electric car
CN202648155U (en) Shell of electric heating device, electric heating device and electric vehicle
CN209298304U (en) A kind of battery pack heat management system and vehicle
CN209282351U (en) A kind of power battery thermal management system based on flexible heat pipe

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant