CN105244462B - The heat management system of electric automobile power battery group - Google Patents
The heat management system of electric automobile power battery group Download PDFInfo
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- CN105244462B CN105244462B CN201510623355.0A CN201510623355A CN105244462B CN 105244462 B CN105244462 B CN 105244462B CN 201510623355 A CN201510623355 A CN 201510623355A CN 105244462 B CN105244462 B CN 105244462B
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- Prior art keywords
- heat
- heat exchanger
- frame
- exchanger fin
- electric automobile
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of heat management system of electric automobile power battery, including heat-dissipating frame, heat exchanger fin and copper pipe, utilize heat-dissipating frame support unit battery and arranged array, add heat exchange area, heat exchanger fin is set between every two rows battery pack again, and is loaded with the copper pipe of air conditioner coolant and is passed through per a piece of heat exchanger fin, so as to be heated or cooled for battery pack using in-car air-conditioning, battery pack is operated in optimum temperature range, and then improve the performance of battery pack and extend its life-span.
Description
Technical field
The present invention relates to electric vehicle engineering field, and in particular to a kind of heat management system of electric automobile power battery group
System.
Background technology
Lithium ion battery is widely used in electric automobile because of its superior performance, however, lithium ion battery is worked
Meeting heat production, if radiated not in time, is easy for causing the heat build-up of inside battery in journey, pacifies even causing to break down
Full accident.Temperature rises, and the internal resistance of cell reduces, and improves battery performance to a certain extent.But, the rise of temperature can accelerate electricity
Heat-producing chemical reaction speed inside pond, causes more hot generations, may destroy battery and induce thermal runaway.Electric automobile exists
During traveling, because of reasons such as start-stop or speed changes, electrokinetic cell load fluctuation rises and falls, battery heat production dynamic change, moreover, changeable
Pavement behavior and environmental condition mean radiating condition also dynamic change.The raising of electric automobile course continuation mileage will seek development more
Great-capacity power battery, also requires that battery possesses preferable fast charging and discharging ability, it is indiscriminate to also likely to be present battery in actual use
With or situations such as accident (as hit), these factors can further deteriorate battery heat removal system condition of work.For electricity
For the group of pond, as size increases, in pile cell produce/radiate it is unbalanced more prominent, if thermal solution design is not
When very serious unbalanced temperature can be produced between each cell inside disparate modules and battery module in battery pack
Distribution, so as to cause cell lack of balance to use, further resulting in causes battery module premature failure.Therefore, develop reasonable
Effective Li-ion batteries piles heat management system, it is most important for improving electric automobile security and service life.
At present, cylindrical lithium ion battery production International standardization, such as 18650 and 26650 models.Because its
Standardization is made, cost is low, performance is stable, the advantages of good heat dissipation effect, its power is employed as by many electric automobile enterprises
Battery assembly module.
Generally, lithium ion battery operating temperature is at 20~45 DEG C or so, and its efficiency and life-span are optimal, however as
The change of electric automobile local environment, for example, drive to the area of pole cold pole heat, and electric automobile working strength raising, example
Such as traveling of bearing a heavy burden for a long time, lithium ion battery is usually in beyond optimum working temperature scope, and life-span and efficiency cannot be ensured.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of heat management of electric automobile power battery group
System, to improve life-span and the efficiency of power battery pack.
To achieve these goals, the present invention is adopted the technical scheme that：
A kind of heat management system of electric automobile power battery group, including heat-dissipating frame, copper pipe and heat exchanger fin, and radiating frame
Frame and heat exchanger fin are metal material；
One element cell of each heat-dissipating frame correspondence power battery pack, the element cell is column lithium ion electric
Pond, and each heat-dissipating frame includes interior round frame, outer square frame, and the fin being arranged between interior round frame and outer square frame；Interior round frame
Internal diameter is matched with the external diameter of element cell, and inwall can be brought into close contact with inserting the outer wall of element cell therein；Outer square frame
For pentagonal configuration, the pentagonal configuration is to splice one on square using the square a line as base and drift angle
The pentagon formed by 120 degree of isosceles triangle；
An element cell is may be inserted into the interior round frame of each heat-dissipating frame, it is multiple by the profile of the outer square frame
Heat-dissipating frame with most close form it is seamless line up two row's battery packs, described most closely referring to is adjacent in two row's battery packs
The centre-to-centre spacing of element cell is minimum；
The both sides of two row's battery packs described in every group form two long planes, place some vertically between plane and plane
Heat exchanger fin, and some heat exchanger fins are arranged in order, the flanging at heat exchanger fin two ends supports the spacing between two panels heat exchanger fin, flanging group
The plane that the plane that conjunction is formed is formed with two row's battery packs fits, and the same position of every heat exchanger fin is provided with least one hole,
Air-conditioning system in copper pipe connecting electric automobile, the refrigerant of air-conditioning flows into copper pipe, and copper pipe is through the hole of every heat exchanger fin, and unit is electric
Pond is exchanged heat with refrigerant by heat-dissipating frame, heat exchanger fin and copper pipe.
The heat management system of electric automobile power battery group of the present invention, utilizes heat-dissipating frame support unit battery and ordered array
Row, add heat exchange area, and set between every two rows battery pack heat exchanger fin, and are loaded with the copper pipe of air conditioner coolant through every
A piece of heat exchanger fin, so as to be heated or cooled for battery pack using in-car air-conditioning, makes battery pack be operated in optimum temperature
In the range of, and then improve the performance of battery pack and extend its life-span.
Brief description of the drawings
Fig. 1 is the schematic diagram of heat-dissipating frame；
Fig. 2 is the schematic diagram of element cell；
Fig. 3 is the top view of heat-dissipating frame；
Fig. 4 is the assembling schematic diagram of element cell and heat-dissipating frame；
Fig. 5 is to be inserted in two row's battery packs that the heat-dissipating frame after element cell is lined up；
Fig. 6 is the schematic diagram of heat exchanger fin；
Fig. 7 is the structural representation of the heat management system of electric automobile power battery of the present invention.
Embodiment
With reference to embodiment, the present invention is further illustrated.
The heat management system of this hair electric automobile power battery, as shown in fig. 7, comprises heat-dissipating frame 1, copper pipe 3 and heat exchange
Piece 4,2 is column lithium ion element cell, abbreviation element cell.
As can be seen from Figure 7, heat-dissipating frame has several, one element cell of each heat-dissipating frame correspondence.As shown in figure 3, dissipating
Hot framework 1 includes interior round frame 1b, fin 1d and outer square frame 1e, and interior round frame 1b surrounds center hole 1a, interior round frame 1b and outer square frame
It is fin 1d and fin clearance 1c between 1e.Wherein, as shown in Figure 1, 2, 3, center hole 1a radius and element cell 2 is outer
Quite, element cell 2 can suitably coat heat-conducting cream or glue and closely be nested among center hole 1a in footpath.The appearance of element cell 2
Face can be conducive to from battery 2 conducting heat into framework 1 without insulation.And in the outer square frame 1e outer surfaces of heat-dissipating frame 1
Insulated.Outer square frame is pentagonal configuration, and the pentagonal configuration is not regular pentagon, but splices one on square
The pentagon formed using the square a line by base and drift angle as 120 degree of isosceles triangle.Each heat-dissipating frame
Interior round frame in may be inserted into an element cell, by the profile of the outer square frame, multiple heat-dissipating frames are with most close shape
Two row's battery packs that what formula was seamless line up, described most close form are as shown in figure 5, now, adjacent list in two row's battery packs
The centre-to-centre spacing of first battery is minimum.So be conducive to heat exchange between each framework, and be combined into solid overall structure.Based on heat exchange
Demand, heat-dissipating frame must be metal material, copper during optimal selection, but for economical reasons, be typically chosen aluminium.
Heat transfer process in heat-dissipating frame is：The heat of element cell 2 is conducted to interior round frame 1b, then is transmitted to fin 1d,
Fin 1d and the air heat-exchange for flowing through fin clearance 1c, air take away heat, and remaining heat is transmitted to outer square frame 1e, if electric
Have the temperature difference between each frame of pond group, heat by by housing 1e from the higher cell conducts of temperature to the relatively low unit of temperature so that
Battery pack temperature tends to be uniform.
As shown in figure 5, the two rows battery pack both sides form two long planes, in two row's battery described in two adjacent groups
It is vertical between group to place heat exchanger fin, as shown in fig. 6, there is a flanging 4a at heat exchanger fin two ends, the height of flanging just with adjacent plate
Between spacing it is equal, the plane that the plane of the flangings of multiple heat exchanger fins composition is constituted with the hot framework of two dissipations is just identical to enter
Row contact heat-exchanging.Heat exchanger fin is stacked together with heat exchanger fin, and the same position of every heat exchanger fin is provided with aperture 4b, and copper pipe is from aperture
In pass through, and the in-car air-conditioning system of copper pipe connection, air conditioner coolant flows through from copper pipe.
The course of work of this heat management system is：When the temperature of battery pack is too high, into refrigerating mode, element cell 2
The heat transfer sent is to heat-dissipating frame 1, and heat-dissipating frame 1 transfers heat to heat exchanger fin 4 again, and heat is caused copper by heat exchanger fin 4
Pipe 3, last heat is absorbed by the refrigerant flowed through inside copper pipe to be taken away.At this moment, evaporation of the heat management system equivalent to air conditioning for automobiles
Device, absorb battery pack generation heat, refrigerant vapor after compressor of air conditioner compresses enter condenser by heat distribute to
In atmospheric environment.On the contrary, when battery pack temperature is relatively low, into warm up mode, heat management system is the condensation of automotive air-conditioning system
Device, absorbs the mode such as amount of heat or electrical heating by evaporator and provides heat for battery pack.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and the embodiment simultaneously is not used to limit this hair
Bright the scope of the claims, all equivalence enforcements or change without departing from carried out by the present invention are intended to be limited solely by the scope of the claims of this case.
Claims (4)
1. a kind of heat management system of electric automobile power battery group, it is characterised in that
Including heat-dissipating frame, copper pipe and heat exchanger fin, and heat-dissipating frame and heat exchanger fin are metal material；
One element cell of each heat-dissipating frame correspondence power battery pack, the element cell is column lithium ion battery, and
Each heat-dissipating frame includes interior round frame, outer square frame, and the fin being arranged between interior round frame and outer square frame；The internal diameter of interior round frame with
The external diameter of element cell is matched, and inwall can be brought into close contact with inserting the outer wall of element cell therein；Outer square frame is five sides
Shape structure, the pentagonal configuration is to splice one on square so that the square a line is base and drift angle is 120
The pentagon that the isosceles triangle of degree is formed；
An element cell is may be inserted into the interior round frame of each heat-dissipating frame, by the profile of the outer square frame, multiple radiatings
Framework with most close form it is seamless line up two row's battery packs, described most closely refers to adjacent cells in two row's battery packs
The centre-to-centre spacing of battery is minimum；
The both sides of two row's battery packs described in every group form two long planes, place some heat exchange vertically between plane and plane
Piece, and some heat exchanger fins are arranged in order, the flanging at heat exchanger fin two ends supports the spacing between two panels heat exchanger fin, flanging combination shape
Into the plane that is formed with two row's battery packs of plane fit, the same position of every heat exchanger fin is provided with least one hole, copper pipe
Air-conditioning system in connecting electric automobile, the refrigerant of air-conditioning flows into copper pipe, copper pipe through the hole of every heat exchanger fin, element cell with
Refrigerant is exchanged heat by heat-dissipating frame, heat exchanger fin and copper pipe.
2. the heat management system of electric automobile power battery group according to claim 1, it is characterised in that
The heat-dissipating frame and the heat exchanger fin are aluminium.
3. the heat management system of electric automobile power battery group according to claim 1 or 2, it is characterised in that
The outer surface of the outer square frame scribbles insulating materials.
4. the heat management system of electric automobile power battery group according to claim 1 or 2, it is characterised in that
The centre position of every heat exchanger fin is provided with two holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510623355.0A CN105244462B (en) | 2015-09-25 | 2015-09-25 | The heat management system of electric automobile power battery group |
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| CN201510623355.0A CN105244462B (en) | 2015-09-25 | 2015-09-25 | The heat management system of electric automobile power battery group |
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| CN105244462A CN105244462A (en) | 2016-01-13 |
| CN105244462B true CN105244462B (en) | 2017-10-17 |
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| CN201510623355.0A Active CN105244462B (en) | 2015-09-25 | 2015-09-25 | The heat management system of electric automobile power battery group |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154521A (en) * | 2016-03-03 | 2017-09-12 | 华东交通大学 | The temperature uniforming heat radiation device of lithium ion battery of electric automobile group |
| CN106159153B (en) * | 2016-08-29 | 2019-11-05 | 华霆（合肥）动力技术有限公司 | A kind of support plate and battery modules |
| CN106450084A (en) * | 2016-10-10 | 2017-02-22 | 苏州协鑫集成储能科技有限公司 | Battery module and battery assembly |
| CN106450093A (en) * | 2016-11-30 | 2017-02-22 | 河南森源重工有限公司 | Liquid cooling and heating control box body for cylinder power battery |
| CN108417926B (en) * | 2017-02-09 | 2020-12-01 | 浙江三花汽车零部件有限公司 | Power battery pack and electric automobile |
| CN108832067A (en) * | 2018-06-25 | 2018-11-16 | 安徽相源新能源有限公司 | A kind of water proof radiating lithium battery group |
| CN110271402B (en) * | 2019-01-09 | 2020-08-07 | 比亚迪股份有限公司 | Power battery pack, energy storage device and electric vehicle |
| CN114256555B (en) | 2019-01-09 | 2023-10-17 | 比亚迪股份有限公司 | Single battery, battery pack without module frame, vehicle and energy storage device |
| CN111641003A (en) * | 2019-03-01 | 2020-09-08 | 中国科学院广州能源研究所 | Thermal management system for power battery pack |
| JP7279541B2 (en) * | 2019-06-25 | 2023-05-23 | 株式会社アイシン | battery storage case |
| CN110994068B (en) * | 2019-11-28 | 2022-11-04 | 重庆长安新能源汽车科技有限公司 | Integrated power battery cooling structure and power battery |
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| CN104769769A (en) * | 2012-10-31 | 2015-07-08 | 三洋电机株式会社 | Battery module |
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| JP4817764B2 (en) * | 2005-08-31 | 2011-11-16 | 三洋電機株式会社 | Power supply for vehicle |
| KR100989119B1 (en) * | 2008-10-08 | 2010-10-20 | 삼성에스디아이 주식회사 | Rechargealbe battery and battery module |
| CN102013463B (en) * | 2010-09-08 | 2013-11-13 | 深圳市智优电池集成技术有限公司 | Heat radiation frame for mounting of battery pack |
| US9774063B2 (en) * | 2011-08-15 | 2017-09-26 | Advanced Energy Technologies Llc | Battery pack assembly having thermal transfer sheets |
| TWI493775B (en) * | 2012-05-22 | 2015-07-21 | Delta Electronics Inc | Battery module |
| CN104241730B (en) * | 2013-06-13 | 2018-03-20 | 南京德朔实业有限公司 | Battery pack with heat dissipation system |
| CN203967155U (en) * | 2014-07-01 | 2014-11-26 | 广东亿纬赛恩斯新能源系统有限公司 | The block structure of battery modules |
| CN204375872U (en) * | 2014-12-04 | 2015-06-03 | 广东亿纬赛恩斯新能源系统有限公司 | A kind of battery modules cooling structure |
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| CN104769769A (en) * | 2012-10-31 | 2015-07-08 | 三洋电机株式会社 | Battery module |
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| CN105244462A (en) | 2016-01-13 |
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