CN101964432A - Battery pack heat dissipation method for electric automobile - Google Patents
Battery pack heat dissipation method for electric automobile Download PDFInfo
- Publication number
- CN101964432A CN101964432A CN2010102847565A CN201010284756A CN101964432A CN 101964432 A CN101964432 A CN 101964432A CN 2010102847565 A CN2010102847565 A CN 2010102847565A CN 201010284756 A CN201010284756 A CN 201010284756A CN 101964432 A CN101964432 A CN 101964432A
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- China
- Prior art keywords
- battery
- battery pack
- power brick
- heat dissipation
- electric automobile
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery pack heat dissipation method for an electric automobile, belonging to the field of electric automobile power sources. An insulating film with high heat conductivity is filled between one battery and another battery in a battery pack as well as between one battery and a battery pack shell, and the heat produced by the batteries during charging and discharging processes is transferred to the surface of the battery pack shell to be dissipated. The invention overcomes the defects of low forced air-cooling heat dissipation efficiency of the traditional battery pack, non-uniform temperature inside the battery pack and complex interior structure and high cost of the water-cooling or oil-cooling type battery pack. The provided battery pack heat dissipation method has the advantages of simple implementation, low cost and good heat dissipation effect.
Description
Technical field
The invention belongs to the electric powered motor source domain, be specifically related to a kind of battery for electric automobile bag heat dissipating method.
Background technology
At present, electric vehicle engineering is constantly progressive, and has been applied in specific occasions such as short distance low speed, city bus and tourist district's traffic.And power brick is as the electric powered motor source, and still there is bigger defective in its serviceability, so electric automobile is produced in enormous quantities apart from steady quality, conformance with standard ground, still also has very long stretch to walk.
The employed battery of batteries of electric automobile bag can be lead-acid battery, Ni-MH battery or lithium ion battery.Because the voltage and the capacity of power brick are higher, cell needs hundreds and thousands of connection in series-parallel to use can reach instructions for use.Power brick can produce a large amount of heat in charge and discharge process, cause the temperature of power brick to rise, and can influence the serviceability of power brick, and temperature is too high may to exist potential safety hazard.The power brick heat dissipating method that prior art adopted mainly is air blast cooling and water-cooled or oil cooling.Air blast cooling is installed in fan on the power brick casing, by wind the heat in the power brick is taken away.The shortcoming of this mode maximum is the local temperature skewness in the power brick, and near the temperature the air inlet is low often, and the temperature height of air outlet.This temperature inhomogeneity directly has influence on cell consistency in the power brick,, can quicken the deterioration of power brick serviceability.And water-cooled or oil cooling mode, though radiating effect is better, the internal structure complexity of power brick, pipeline gathers, and causes power brick weight and cost sharply to rise.
Summary of the invention
The objective of the invention is to overcome the weak point of existing power brick air blast cooling or water-cooled, oil injection type radiating mode, provide a kind of implement simple, cost is low, the battery for electric automobile bag heat dissipating method of good heat dissipation effect.
Technical scheme of the present invention is: a kind of insulation film of high thermal conductivity is cut into small pieces by the size of each face of battery, be filled between the battery and battery in the power brick, between battery and the power brick housing, the heat that battery is produced in charge and discharge process is sent to the power brick surface of shell and sheds.
Further technical scheme is:
1, the insulation film of high thermal conductivity is selected thermal conductive silicon film or silicone resin film for use, its thickness range 0.15mm～3.0mm.
2, power brick surface of shell finned, the distributing of accelerated heat.
The obtained beneficial effect of the present invention:
1, adopts heat dissipating method of the present invention, the heat that battery in the power brick produces in the process of charging and discharging is derived power brick internal temperature homogeneous rapidly by the heat conduction film, it is low to have overcome near the temperature of forced air-cooled air inlet, near the high shortcoming of the temperature air outlet.
2, the power brick internal structure is simple, adopts the insulation film of high thermal conductivity to fill, not only can heat conduction, and can replace the battery surface insulating case, and prevent battery drain, avoided power brick charged.Simultaneously also avoided water-cooled or oil injection type complex inner structure, can reduce cost.
3, power brick can be done hermetically sealed, dustproof, waterproof, has effectively protected battery and electronic devices and components in the power brick.
4, power brick surface of shell finned further strengthens radiating effect.
Embodiment
Below by embodiment the present invention is further described, and carries out test comparison with Comparative Examples.
Embodiment 1:
Is example with the hybrid electrically big bus with the Ni-MH battery power brick of 360V40Ah:
The thermal conductive silicon film that 3mm is thick is cut into small pieces according to the Ni-MH battery size of 40Ah, sticks on battery surface respectively, successively battery is installed in the power brick housing then.In the laboratory under 25 ℃ of environment (static test), 4 multiplying power discharging 60s.39 ℃ of six temperature survey point maximum temperatures in the power brick, minimum 37 ℃.After the power brick entrucking, the hybrid electrically big bus is (dynamic test) in the process of moving, and can there be relative motion in power brick with air, and the heat on power brick surface can shed rapidly.32 ℃ of six temperature survey point maximum temperatures in the power brick, 31 ℃ of minimum temperatures, 23 ℃ of outdoor temperatures.
Embodiment 2:
Is example with the hybrid electrically car with the ferric phosphate lithium cell bag of 144V8Ah:
The thermal conductive silicon film that 0.15mm is thick is cut into small pieces according to the size of 8Ah acid lithium iron battery, sticks on battery surface respectively, battery is installed in the power brick housing successively then, and housing installs aluminium radiator fin outward additional.Static test, 4 multiplying power discharging 6min.37 ℃ of six temperature survey point maximum temperatures in the power brick, minimum 34 ℃.30 ℃ of six temperature survey point maximum temperatures in the dynamic test, power brick, 29 ℃ of minimum temperatures, 21 ℃ of outdoor temperatures.
Comparative Examples 1:
The Ni-MH battery power brick of 360V40Ah of using the hybrid electrically big bus adopts the radiating mode of air blast cooling, static test, 4 multiplying power discharging 60s.41 ℃ of six temperature survey point maximum temperatures in the power brick, minimum 34 ℃, 23 ℃ of outdoor temperatures.
Comparative Examples 2:
The hybrid electrically car radiating mode of the ferric phosphate lithium cell bag employing air blast cooling of 144V8Ah, static test, 4 multiplying power discharging 6min.39 ℃ of six temperature survey point maximum temperatures in the power brick, minimum 32 ℃.35 ℃ of six temperature survey point maximum temperatures in the dynamic test, power brick, minimum 29 ℃, 21 ℃ of outdoor temperatures.
Claims (3)
1. battery for electric automobile bag heat dissipating method, it is characterized in that: with a kind of insulation film of high thermal conductivity be filled between the battery and battery in the power brick, between battery and the power brick housing, the heat that battery is produced in charge and discharge process is sent to the power brick surface of shell and sheds.
2. by the described battery for electric automobile bag of claim 1 heat dissipating method, the insulation film that it is characterized in that described high thermal conductivity is thermal conductive silicon film or silicone resin film, its thickness range 0.15mm～3.0mm.
3. by the described battery for electric automobile bag of claim 1 heat dissipating method, it is characterized in that power brick surface of shell finned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102847565A CN101964432A (en) | 2010-09-16 | 2010-09-16 | Battery pack heat dissipation method for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102847565A CN101964432A (en) | 2010-09-16 | 2010-09-16 | Battery pack heat dissipation method for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101964432A true CN101964432A (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102847565A Pending CN101964432A (en) | 2010-09-16 | 2010-09-16 | Battery pack heat dissipation method for electric automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN101964432A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931449A (en) * | 2012-11-19 | 2013-02-13 | 上汽通用五菱汽车股份有限公司 | Heat radiation structure of automobile battery pack |
| CN104538567A (en) * | 2014-11-13 | 2015-04-22 | 深圳鸿源博得新能源技术发展有限公司 | Battery pack with high protection level and method for raising protection level of battery pack |
| CN105914429A (en) * | 2016-04-21 | 2016-08-31 | 中国第汽车股份有限公司 | Flexible heat conductive film based on functional group graphene reduction and preparation method of same |
| CN105977575A (en) * | 2016-07-08 | 2016-09-28 | 无锡市宝来电池有限公司 | High heat dissipation battery/battery pack |
| CN106602167A (en) * | 2016-11-21 | 2017-04-26 | 深圳市锐拓新源科技有限公司 | Battery module structure |
| CN106129529B (en) * | 2016-08-17 | 2019-04-19 | 合肥国轩高科动力能源有限公司 | A kind of mixing heat dissipation type power battery pack |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605670Y (en) * | 2003-03-28 | 2004-03-03 | 东莞新能源电子科技有限公司 | Polymer lithium ion secondary cell or battery radiating package |
| CN101501867A (en) * | 2006-06-09 | 2009-08-05 | Fpe菲舍尔有限公司 | Junction box to protect individual solar panels from overheating |
| CN201570551U (en) * | 2010-01-26 | 2010-09-01 | 浙江戴尔维动力电池系统有限公司 | Monomer battery structure for lithium battery pack |
-
2010
- 2010-09-16 CN CN2010102847565A patent/CN101964432A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605670Y (en) * | 2003-03-28 | 2004-03-03 | 东莞新能源电子科技有限公司 | Polymer lithium ion secondary cell or battery radiating package |
| CN101501867A (en) * | 2006-06-09 | 2009-08-05 | Fpe菲舍尔有限公司 | Junction box to protect individual solar panels from overheating |
| CN201570551U (en) * | 2010-01-26 | 2010-09-01 | 浙江戴尔维动力电池系统有限公司 | Monomer battery structure for lithium battery pack |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931449A (en) * | 2012-11-19 | 2013-02-13 | 上汽通用五菱汽车股份有限公司 | Heat radiation structure of automobile battery pack |
| CN102931449B (en) * | 2012-11-19 | 2014-12-03 | 上汽通用五菱汽车股份有限公司 | Heat radiation structure of automobile battery pack |
| CN104538567A (en) * | 2014-11-13 | 2015-04-22 | 深圳鸿源博得新能源技术发展有限公司 | Battery pack with high protection level and method for raising protection level of battery pack |
| CN104538567B (en) * | 2014-11-13 | 2018-01-09 | 深圳鸿源博得新能源技术发展有限公司 | High-protection level battery bag and the method for improving battery bag degree of protection |
| CN105914429A (en) * | 2016-04-21 | 2016-08-31 | 中国第汽车股份有限公司 | Flexible heat conductive film based on functional group graphene reduction and preparation method of same |
| CN105914429B (en) * | 2016-04-21 | 2018-10-23 | 中国第一汽车股份有限公司 | A kind of flexible heat conducting film and preparation method based on functional group's graphene reduction |
| CN105977575A (en) * | 2016-07-08 | 2016-09-28 | 无锡市宝来电池有限公司 | High heat dissipation battery/battery pack |
| CN106129529B (en) * | 2016-08-17 | 2019-04-19 | 合肥国轩高科动力能源有限公司 | A kind of mixing heat dissipation type power battery pack |
| CN106602167A (en) * | 2016-11-21 | 2017-04-26 | 深圳市锐拓新源科技有限公司 | Battery module structure |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110202 |