CN202217748U - Battery heat radiation device and battery pack - Google Patents

Battery heat radiation device and battery pack Download PDF

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Publication number
CN202217748U
CN202217748U CN2011202329388U CN201120232938U CN202217748U CN 202217748 U CN202217748 U CN 202217748U CN 2011202329388 U CN2011202329388 U CN 2011202329388U CN 201120232938 U CN201120232938 U CN 201120232938U CN 202217748 U CN202217748 U CN 202217748U
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CN
China
Prior art keywords
heat
battery
heat abstractor
sprue
coverboard
Prior art date
Application number
CN2011202329388U
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Chinese (zh)
Inventor
曾毅
郑卫鑫
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惠州比亚迪电池有限公司
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Priority to CN2011202329388U priority Critical patent/CN202217748U/en
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Publication of CN202217748U publication Critical patent/CN202217748U/en

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    • 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

Abstract

The utility model provides a battery heat radiation device and a battery pack, wherein the battery heat radiation device comprises a cooling plate and a plurality of heat pipes; the cooling plate comprises a collector plate and a flow channel part connected with the collector plate; a plurality of grooves are arranged on the collector plate; the heat pipes are arranged in the grooves; a main flow channel is arranged in the flow channel part; and one end of each heat pipe is close to the main flow channel and is used for conducting battery heat to the main channel. The utility model provides the battery heat radiation device which can rapidly and effectively radiate the heat; furthermore, the structure is simple, the cost is low, and the heat radiation device is light, thereby being beneficial for reducing the weight and volume of a battery.

Description

A kind of battery heat abstractor and battery pack
Technical field
The utility model is about a kind of heat abstractor, more specifically is with heat abstractor and the battery pack of using this heat abstractor about a kind of battery.
Background technology
At present, electric automobile and hybrid vehicle can effectively solve problem of environmental pollution, alleviating energy crisis.Therefore the development of electric automobile gets more and more people's extensive concerning, and as the battery of the electric motor car heart emphasis of electric automobile research especially, battery as portable, move the energy, its security performance also becomes the most important thing.Particularly battery for electric automobile generally adopts power battery pack, by some cells serial or parallel connection in a different manner, then through clamping, fixedly forming.Alkaline secondary cells such as cell can be separated for traditional nickel, ni-mh also can be lithium ion battery.
Therefore the general volume of power battery pack is big; Operating current is big, needs fast charging and discharging etc., in use particularly automobile fill soon and the process of running at high speed in can produce a large amount of heats; Battery operated temperature and temperature uniformity not only have very big influence to battery life; Influence the chemical property of battery pack, and the heat that produces can not distribute fast and effeciently, the gathering of heat possibly caused security incidents such as battery heating, on fire, blast.
Existing research is employed in air duct is set in the power battery pack; Adopt air cooled easily mode that battery is lowered the temperature; But air cooled efficient is low; The import and export temperature difference is big, and the heat that low flow rate of gas can lead out in the short time is very limited, is difficult to the heat that digestion battery high current charge-discharge produces.
Also have research to adopt the mode of liquid cools, its principle is earlier the battery heat to be conducted on the coldplate, is taken away by the liquid through coldplate again.The general coldplate that adopts plate to be embedded with a plurality of runners or a plurality of metal tubes, for example, disclosed a kind of cooling structure comprises some cooling web plates, main and turnover pipe between monolithic battery; The left and right sides of said cooling web plate upper end is provided with tube connector, and said tube connector one end communicates with said cooling web plate, and the other end communicates with said main, and said main communicates with said turnover pipe; Cooling water pipe or cooling stick are installed in the inner chamber of said cooling web plate, and circulation has liquid or gas medium cooling in the cooling web plate, and what cooling water pipe or cooling stick adopted is metal tube or the metal bar of Φ 1-Φ 5; Form runner, during making, cooling water pipe or cooling stick are installed in the inner chamber of cooling web plate; Welding procedure is complicated, and the while is circulating liquid or gas in the cooling web plate, and runner is narrow and long; Flow resistance is big, not only liquid pump is also had higher requirement, and cooling rate is slow simultaneously; Still do not reach desirable requirement, the coldplate internal pressure is big, and requires the thickness of coldplate also big; Usually more than 10mm, cause the weight of coldplate to increase, run counter to the requirement of automobile loss of weight and size restrictions.
Summary of the invention
The purpose of the utility model is slow or cost is too high in order to overcome conventional battery cooling structure cooling rate; The battery heat abstractor of the quick efficiently radiates heat of a kind of ability is provided, and simple in structure, and cost is low; Heat abstractor is frivolous, helps reducing battery weight and volume.
A kind of battery heat abstractor comprises coldplate and some heat pipes; Wherein, coldplate comprises thermal-arrest plate and the flow path portion that is connected with the thermal-arrest plate; The thermal-arrest plate is provided with some grooves, and heat pipe is arranged in groove; Be provided with sprue in the flow path portion, an end of heat pipe is near sprue, and the battery heat conducts to sprue through heat pipe.
Wherein, the thermal-arrest plate generally adopts the more excellent metallic plate of heat dispersion, realizes the homogeneity that battery conducts heat, the homogeneity of internal temperature of battery.Can circulating liquid or gas medium in the sprue, through the mobile heat that gathers of taking away of liquid or gas medium, the circulation of liquid or gas medium can be adopted realizations such as external pump.
One end of heat pipe is used for the battery heat is conducted to sprue near sprue.The general axial heat conduction of adopting heat pipe; Promptly utilize heat pipe can the heat of battery axially be delivered to an end fast, directly take out of outside the battery through the medium that circulates in the sprue, heat pipe and sprue are not parallel; Be that heat pipe and sprue can be mutually certain angle; Only need an end of heat pipe can be positioned at battery pack or battery, the other end is near sprue, battery or battery pack internal heat conducted to sprue get final product.
The quantity of heat pipe designs according to the heating power of battery, and the heat radiation power of generally selecting single heat pipe for use is usually at 20 ~ 50w, and the quantity of heat pipe is calculated according to actual conditions.Preferably, heat pipe contains two at least, is parallel to each other between a plurality of heat pipes.
Preferably, heat pipe evenly distributes on coldplate, realizes the heat radiation of inside battery homogeneous, guarantees the homogeneity of internal temperature of battery.
Preferred heat pipe is vertical with sprue, wherein, heat pipe be L apart from sprue nearest an end and the distance between sprue, 0<L<10mm.Can heat be delivered to sprue rapidly, after take battery out of, improve radiating efficiency.
Wherein, flow path portion is connected with the thermal-arrest plate, can be positioned at thermal-arrest plate middle part; Also can be positioned at thermal-arrest plate end, only the heat pipe on the need thermal-arrest plate conducts to the sprue in the flow path portion with the heat of battery, takes heat out of outside batteries through the gas or the liquid medium that circulate in the sprue; The heat radiation of realization battery, preferred, flow path portion is positioned at thermal-arrest plate end; The thickness of flow path portion can increase the circulation area of sprue greater than the thickness of thermal-arrest plate, not only reduces the requirement of pump; Reduce cost, also can increase the speed of liquid communication and the amount of liquid communication, improve and fall the heat efficiency.
Preferably, fill heat-conducting resin between heat pipe and groove.For example, can heat pipe be put into groove after, in the intermittence of heat pipe and groove, inject the liquid heat conductive resin, back heat-conducting resin solidifies heat pipe is connected with groove.Heat-conducting resin can be selected epoxy resin etc. for use.
Or further preferred, adopt the mode of welding to be connected between heat pipe and groove.For example soldering processes or laser welding method.Can adopt the method for soldering that heat pipe is welded in the groove.
The degree of depth of groove is h1, and the thickness of heat pipe is h2, and is preferred, 0≤h1-h2≤1mm.Further preferred 0≤h1-h2≤0.5mm, the degree of depth of groove and the consistency of thickness of heat pipe.Practice thrift volume, increase the capacity of heat transmission, cold plate surface is smooth, helps better contacting battery surface, more effective heat radiation.
The length of coldplate is L1, and the length of heat pipe is L2, and is preferred, 2 mm≤L1-L2≤5mm.Further improve the heat-sinking capability of heat abstractor.
Preferably, the thickness of coldplate is 2.5 ~ 4mm.Reduce the quality and the volume of heat abstractor, reduced the battery particularly quality and the volume of battery pack.
Preferably, cold plate surface is smooth.Help better contacting battery surface, more effective heat radiation.
Preferably, comprise in the sprue cooling off and use liquid, take away the inside battery heat rapidly through the circulation of liquid, effectively cooling.
Wherein, heat pipe comprises the shell of sealing and is filled in the working media that decalescence and heat release in the shell can be carried out heat exchange.
Preferably, sprue comprises cooling with the import and export of liquid, and import and export is provided with the mounting pipe joint, and the mounting pipe joint is used to connect external pipe and pump, realizes cooling off the circulation with liquid, and the mounting pipe joint must be connected to adopt with sprue and is threaded.
Second purpose of the utility model provides a kind of battery pack, comprises housing, some batteries and heat abstractor; Cell package is in housing, and heat abstractor is between battery and housing; Insulate between heat abstractor and battery; Wherein, heat abstractor is above-mentioned heat abstractor.
Heat abstractor can all be packaged in enclosure interior; Can external pipe etc. derive the medium in the heat abstractor sprue; For example only need the import and export of the sprue of heat abstractor to be positioned at the outer directly connecting tube of housing, or extend outside the housing through import and export extension tube attached at sprue.Flow path portion that also can heat abstractor is located immediately at outside the housing, is positioned at the battery end, directly is used for the outside heat radiation of battery pack.
Heat abstractor can pass through the fastening of housing, is directly fixed between housing and the battery, also can be installed on battery or the housing, for example at the coldplate edge alignment pin is set, and location notch is set on housing, and the alignment pin on the coldplate is inserted the location notch clamping.Housing can adopt battery pack to use various housings always, the also not special restriction of the combination of housing and installation the utility model.
The battery of the utility model indication is meant the center part that electric current can be provided; The power brick for preparing can be, also electric core that includes only housing, pole piece and cover plate encapsulation or the power brick that electric core is formed etc. can be with the isostructural cell of protection circuit plate or cell assembling.
Preferably, housing comprises coverboard, following coverboard, left side coverboard, right side coverboard, preceding arm-tie and back arm-tie; Be fastenedly connected between last coverboard, following coverboard, left side coverboard, right side coverboard, preceding arm-tie and back arm-tie, be fastenedly connected and can adopt connected mode commonly used, for example screw connects; Last coverboard one side is provided with alignment pin; Thermal-arrest plate end is provided with location notch; Alignment pin and location notch clamping realize being located by connecting of coldplate; When flow path portion was positioned at thermal-arrest plate end, at this moment, flow path portion was positioned at outside the housing, is positioned at the battery pack end, directly realized the outside batteries heat radiation, directly took the inside battery heat out of outside batteries.
Heat abstractor is fixedly connected on the housing, prevents moving of heat abstractor, battery generally assembles tight; Connect closely between each coverboard, promptly the slit is less in the battery, improves the useful space of battery; Simultaneously guaranteed that also heat abstractor contacts with the effective of electric core, improved the cooling efficient of battery.
Wherein, the not special restriction of last coverboard the utility model can be arbitrary of housing, when selecting housing simultaneously for upper shell for use, can go out coverboard, left side coverboard, right side coverboard, preceding arm-tie and back arm-tie down according to six view correspondences.
Simultaneously the utility model can adopt the bottom surface of not exposing heat pipe of heat abstractor to contact with battery to dispel the heat and also can adopt the upper surface that exposes heat pipe to contact heat radiation with battery.
Preferably, the surface of coldplate is coated with ceramic layer and is used for the insulation between heat abstractor and battery.
Preferably, be provided with the insulating heat-conductive pad between coldplate and electric core and be used for the insulation between heat abstractor and battery.
Preferably, battery contains two at least, also is provided with heat abstractor between battery.When between a plurality of batteries heat abstractor being set, the sprue of heat abstractor can be positioned at battery container, and the import and export of sprue are positioned at outside the housing or through extension tube attached extends outside the housing; Also can be positioned at outside the battery container by the heat abstractor sprue; Through location notch is set, the alignment pin that adapts to location notch is set, on the coverboard of housing through the assembling of a plurality of coverboards on heat abstractor; And the assembling of coverboard and coldplate, realize the assembling of battery container and heat abstractor.
Preferably, parallel connection or series connection between the sprue of heat abstractor.Parallel connection or series connection can realize through mounting pipe between sprue; For example the trunk line that is connected with pump can be set; On the sprue of heat abstractor a plurality of gateways can be set, go out to be provided with hickey etc. in the gateway, realize the serial connection sprue and be connected in series being connected between the sprue through being threaded of mounting pipe; Join with trunk line again, make and realize parallel connection between the part sprue.
The beneficial effect of the utility model: 1, heat pipe can import the heat that gathers in the thermal-arrest plate in the sprue fast, satisfies the heat radiation requirement of electrokinetic cell.And the main board of coldplate is not need circulated gases or liquid medium in the plate of thermal-arrest plate; Reduced the requirement of pump; Do not have gas or liquid resistance simultaneously, the thinnest 2.5mm that reaches of coldplate compares with traditional coldplate; Reduce the quality and the volume of coldplate significantly, reduced volume of battery and weight.
2, only be provided with sprue in the coldplate, directly be used to connect extension tube attached, pump etc., sprue is short, wide, and flow path portion can be set be slightly thicker than the thermal-arrest plate, widens the circulation passage of medium, and flow resistance is little, and small-sized liquid pump can meet the demands, more energy-saving mute.And the coldplate internal pressure is low, has reduced risk of leakage.
3, the utility model radiator structure is simple, and coldplate and heat pipe cost are low.
4, the utility model utilizes the axial thermal conductivity property of heat pipe very strong, can heat be delivered to an end rapidly, and circulation is simultaneously conducted heat fast; The heat conduction reaches sprue rapidly with battery or battery pack internal heat fast, directly sends out battery; Cooling is fast, and the heat pipe volume is little simultaneously, is easy to install; Stable performance, the capacity of heat transmission is strong.
Description of drawings
The battery that Fig. 1 provides for the utility model is with the structural representation of the coldplate of heat abstractor.
The structural representation of the battery pack that Fig. 2 provides for the utility model.
Embodiment
Describe battery that the utility model provides in detail with heat abstractor and use the power battery pack of this heat abstractor below in conjunction with accompanying drawing.
Among this paper, same reference numerals is represented the same composition part.And, in this article, term " on ", directional terminology such as D score, " left side ", " right side " " preceding ", " back " are respectively the term based on the orientation on the diagram, it maybe be inequality with the actual installation situation, is not limited to the scope of the utility model.
Shown in accompanying drawing 1, be the battery of the utility model structural representation with the coldplate 1 of heat abstractor, coldplate 1 comprises thermal-arrest plate 11 and is positioned at the flow path portion 12 of thermal-arrest plate 11 ends, is provided with the sprue 121 of always wearing flow path portion 12 in the flow path portion 12.
Wherein, Groove 111 is not parallel with sprue 121, can be mutually certain angle, present embodiment with on the panel of thermal-arrest plate 11, be provided with some equally distributed be example with sprue 121 vertical grooves 111; 111 of grooves are parallel to each other, and on panel, become grating structure.The end of groove 111 is near sprue 121; The battery heat conducts to sprue 121 through the heat pipe in the groove 111 2; Adopt the axial heat conduction of heat pipe 2, promptly utilize heat pipe 2 can the heat of battery axially be delivered to an end fast, directly take out of outside the battery through the medium of circulation in the sprue 121 again.
In thermal-arrest plate 11 ends is thermal-arrest plate 11 and flow path portion 12 junctions, has dug location notch 112 between the end of groove 111 and the flow path portion 12.
General coldplate 1 thickness is thicker slightly than flat type heat pipe 2, and for example, about the general 2mm of flat type heat pipe 2 thickness, coldplate 1 thickness can be 2.5 ~ 4mm, and length can design according to the size of battery 4.It is example that the utility model comprises 16 batteries 4 with a module, and the battery of selecting for use 4 highly is 80mm, and length is 300mm, and the thickness of available coldplate 1 is 2.5mm, and the length that can select single heat pipe 2 for use is 250mm.The length of groove 111, width and the degree of depth design according to length, width and the thickness of heat pipe 2; When selecting flat type heat pipe for use; The length of preferred groove 111 is than the long 2 ~ 5mm of length of flat type heat pipe 2; Width is than the wide 0.1 ~ 0.5mm of the width of flat type heat pipe 2, the dark 0 ~ 0.5mm of thickness of the flat type heat pipe 2 of depth ratio, and the degree of depth is consistent as far as possible with flat type heat pipe 2.For example, can on coldplate 1, process the degree of depth is 2.1mm, and length is the groove 111 of 252mm, and wherein, groove 111 1 end distances of processing are 5mm from sprue 121.
Coldplate 1 can be the good material of thermal conductivity, and for example aluminum or aluminum alloy etc. is realized the homogeneity that battery conducts heat, the homogeneity of battery or battery pack internal temperature.
The thickness of flow path portion 12 can increase sprue 121 width greater than the thickness of thermal-arrest plate 11, increases the circulation area of medium; Reduce the requirement of pump, reduce cost, also can increase the speed of liquid communication and the amount of liquid communication; Improve and fall the heat efficiency, only with the thickness that increases flow path portion 12, volume is little for present embodiment; And need not reduce the weight and volume of battery or battery pack through increasing the thickness of whole coldplate 1.
Sprue 121 is generally straight way, and short, and medium not be used in coldplate 1 interior the flowing of inside battery, has also reduced the resistance of medium circulation.Can circulating liquid or gas medium in the sprue 121; The mobile heat that gathers of taking away through liquid or gas medium; The circulation of liquid or gas medium can be adopted realizations such as external pump; Among this paper, gas or liquid medium can and heat agent, for example freon, azeotropic mixed working medium, hydrocarbon, ammonia or fluorine inert fluid for various cold-producing mediums.Can realize the homogeneity of battery and battery pack internal temperature, improve the security performance and the cycle performance of battery.
Coldplate 1 can be made by several different methods; For example; At first can directly obtain have the blank plate that runs through flow path portion 12 sprues 121, on coldplate 1, process even distribution and parallel many grooves 111 through mach method again and at thermal-arrest plate 11 and the equally distributed a plurality of location notchs 112 in throughput 12 junctions, location notch 112 is positioned at the end of groove 111 through extrusion modling; Radiating efficiency is improved near sprue 121 in the end of groove 111.Alignment pin 311 on the general and battery case of the position of location notch 112 and size is complementary.Then can be in the ability circulated gases of sprue 121 or the import and export position machining screw of liquid medium, to make things convenient for mounting pipe joint 5.
Shown in accompanying drawing 2, be a kind of structural representation of battery pack.
Flat type heat pipe 2 is pressed in the groove 111 that processes, and the epoxy resin cooling that in the gap of flat type heat pipe 2 and groove 111, pours into fusion heat conduction is solidified or with the method for soldering heat pipe 2 is welded in the groove 111.Heat pipe 2 comprises the shell of sealing and is filled in the working media that decalescence and heat release in the shell can be carried out heat exchange that heat pipe 2 can be for commercial.
The quantity design that is pressed into flat type heat pipe 2 is relevant with the heating power of battery pack; The heat radiation power of general single heat pipe 2 is usually at 20 ~ 50w, for example, and when the battery pack of selecting 4 combinations of 16 cells for use; When heating power is 144w; Generally be pressed into 5 flat type heat pipes 2, maximum heat radiation power can reach 30w, can realize heat radiation rapidly and uniformly.
After the two sides of coldplate 1 is polished, to realize good heat conduction, make battery and use heat abstractor.
Arbitrary surface of above-mentioned heat abstractor is contacted heat radiation with battery 4, and 4 pads of heat abstractor and battery insulating heat-conductive pad keeps insulating heat-conductive to contact, with heat abstractor with battery 4 housing of packing into.
For example housing can be by last coverboard 31, coverboard, left side coverboard 32, right side coverboard, preceding arm-tie 33 and back arm-tie assemble down; Last coverboard 31, be fastenedly connected between coverboard, left side coverboard 32, right side coverboard, preceding arm-tie 33 and back arm-tie down, connected mode can adopt screw 6 to connect.Will keep certain fastening force between upper shell 31 and the left side coverboard 32, the battery pack assembling is tight, and the slit is less in the battery pack; Improve the useful space of battery; Coldplate 1 is closely contacted with battery 4, guaranteed that also heat abstractor contacts with the effective of battery 4, improve the cooling efficient of battery pack.
A side of wherein going up coverboard 31 is processed with the alignment pin 311 that position and size with location notch 112 are complementary, and will go up location notch 112 clampings on alignment pin 311 and the coldplate 1 on the coverboard 31 earlier, and the location of realizing coldplate 1 prevents moving of heat abstractor.
Back screw 6 rugged housings, this moment, the sprue 121 of coldplate 1 end was positioned at outside the housing, was in the battery pack end, directly realized the outside heat radiation of battery pack, directly took the battery pack internal heat out of the battery pack outside.
Import and export mounting pipe joint 5 at sprue 121 can adopt to be threaded, and the preferred fluid sealant in screw thread place seals.After pipeline and pump etc. can be set on pipe joint 5 as required, realize the circulation of gas in the sprue 121 or liquid medium, realize the cooling of battery pack.
Power battery module also can be the combination of a plurality of batteries or battery pack, and 5 of the pipe joints of the adjacent battery or the import and export of battery pack are welded to connect, and realizes the circulation of the medium of entire cell module.
The utility model heat abstractor light weight, volume is little, has reduced volume of battery and weight.And pump require low, energy-saving mute more, the coldplate internal pressure of heat abstractor is low, has reduced risk of leakage.Simple in structure, coldplate and heat pipe cost are low.The axial thermal conductivity property of heat pipe is very strong simultaneously, can heat be delivered to an end rapidly, and circulation is simultaneously conducted heat fast, and heat conducts fast, and cooling is fast.
Those skilled in the art know easily; The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.The protection range of the utility model is confirmed by claims.

Claims (19)

1. a battery heat abstractor is characterized in that, said heat abstractor comprises coldplate and some heat pipes;
Said coldplate comprises thermal-arrest plate and the flow path portion that is connected with the thermal-arrest plate; Said thermal-arrest plate is provided with some grooves, and said heat pipe is arranged in groove; Be provided with sprue in the said flow path portion, an end of said heat pipe is near sprue, and the battery heat conducts to sprue through heat pipe.
2. heat abstractor according to claim 1 is characterized in that, said heat pipe contains two at least, is parallel to each other between said heat pipe.
3. heat abstractor according to claim 2 is characterized in that, said heat pipe evenly distributes on the thermal-arrest plate.
4. heat abstractor according to claim 1 is characterized in that, said flow path portion is positioned at thermal-arrest plate end, and the thickness of flow path portion is greater than the thickness of thermal-arrest plate.
5. heat abstractor according to claim 1 is characterized in that said heat pipe is vertical with sprue, said heat pipe be L apart from sprue nearest an end and the distance between sprue, 0<L<10mm.
6. heat abstractor according to claim 1 is characterized in that, fills heat-conducting resin between said heat pipe and groove.
7. heat abstractor according to claim 1 is characterized in that, adopts the mode of welding to be connected between said heat pipe and groove.
8. heat abstractor according to claim 1 is characterized in that, the degree of depth of said groove is h1, and the thickness of said heat pipe is h2,0≤h1-h2≤1mm.
9. heat abstractor according to claim 1 is characterized in that, the length of said coldplate is L1, and the length of said heat pipe is L2,2 mm≤L1-L2≤5mm.
10. heat abstractor according to claim 1 is characterized in that, the thickness of said coldplate is 2.5 ~ 4mm.
11. heat abstractor according to claim 1 is characterized in that, said cold plate surface is smooth.
12. heat abstractor according to claim 1 is characterized in that, comprises in the said sprue cooling off using liquid; Said heat pipe comprises the shell of sealing and is filled in the working media that decalescence and heat release in the shell can be carried out heat exchange.
13. heat abstractor according to claim 12 is characterized in that, said sprue comprises the import and export of cooling with liquid, and said import and export is provided with the mounting pipe joint.
14. a battery pack is characterized in that said battery pack comprises housing, some batteries and heat abstractor;
Said cell package is in housing, and said heat abstractor is between battery and housing;
Insulate between said heat abstractor and battery;
Said heat abstractor is any described heat abstractor of claim 1-13.
15. battery pack according to claim 14 is characterized in that, said housing comprises coverboard, following coverboard, left side coverboard, right side coverboard, preceding arm-tie and back arm-tie;
Said going up between coverboard, following coverboard, left side coverboard, right side coverboard, preceding arm-tie and back arm-tie is fastenedly connected;
Said coverboard one side of going up is provided with alignment pin;
Said thermal-arrest plate end is provided with location notch;
Said alignment pin and location notch clamping.
16. battery pack according to claim 14 is characterized in that, the surface of said coldplate is coated with ceramic layer and is used for the insulation between heat abstractor and battery.
17. battery pack according to claim 14 is characterized in that, is provided with the insulating heat-conductive pad between said coldplate and battery and is used for the insulation between heat abstractor and battery.
18. battery pack according to claim 14 is characterized in that, said battery contains two at least, is provided with heat abstractor between said battery.
19. battery pack according to claim 18 is characterized in that, parallel connection or series connection between the sprue of said heat abstractor.
CN2011202329388U 2011-07-05 2011-07-05 Battery heat radiation device and battery pack CN202217748U (en)

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CN104701587A (en) * 2015-02-10 2015-06-10 智慧城市系统服务(中国)有限公司 Battery pack cooling device and battery module using same
CN105144465A (en) * 2012-11-27 2015-12-09 株式会社Lg化学 Battery system and method for cooling battery cell assembly
CN105633509A (en) * 2016-03-17 2016-06-01 华南理工大学 Power battery composite heat management system and method thereof
CN106992273A (en) * 2016-09-21 2017-07-28 比亚迪股份有限公司 Electrokinetic cell bag
CN108072289A (en) * 2016-11-08 2018-05-25 S&G株式会社 The one-piece type heat exchanger plate of flow path
CN108682757A (en) * 2018-05-23 2018-10-19 襄阳九州汽车有限公司 A kind of anti-runout of new energy car battery
CN109066007A (en) * 2018-07-26 2018-12-21 东南大学 A kind of extensive battery modules integral box cooling system based on heat pipe
CN110277604A (en) * 2019-05-13 2019-09-24 全球能源互联网研究院有限公司 A kind of thermal management device and system for battery pack

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CN104701587A (en) * 2015-02-10 2015-06-10 智慧城市系统服务(中国)有限公司 Battery pack cooling device and battery module using same
CN105633509B (en) * 2016-03-17 2018-07-20 华南理工大学 A kind of power battery compound thermal management system and method
CN105633509A (en) * 2016-03-17 2016-06-01 华南理工大学 Power battery composite heat management system and method thereof
CN106992273A (en) * 2016-09-21 2017-07-28 比亚迪股份有限公司 Electrokinetic cell bag
CN106992273B (en) * 2016-09-21 2018-09-11 比亚迪股份有限公司 Power battery pack
US10916750B2 (en) 2016-09-21 2021-02-09 Byd Company Limited Power battery pack
CN108072289A (en) * 2016-11-08 2018-05-25 S&G株式会社 The one-piece type heat exchanger plate of flow path
CN108682757A (en) * 2018-05-23 2018-10-19 襄阳九州汽车有限公司 A kind of anti-runout of new energy car battery
CN108682757B (en) * 2018-05-23 2020-12-15 襄阳九州汽车有限公司 New energy automobile battery leak protection case
CN109066007A (en) * 2018-07-26 2018-12-21 东南大学 A kind of extensive battery modules integral box cooling system based on heat pipe
CN109066007B (en) * 2018-07-26 2020-06-30 东南大学 Large-scale battery module integration box cooling system based on heat pipe
CN110277604A (en) * 2019-05-13 2019-09-24 全球能源互联网研究院有限公司 A kind of thermal management device and system for battery pack

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