CN203644903U - Composite heat dissipation device for traction battery pack - Google Patents
Composite heat dissipation device for traction battery pack Download PDFInfo
- Publication number
- CN203644903U CN203644903U CN201320848936.0U CN201320848936U CN203644903U CN 203644903 U CN203644903 U CN 203644903U CN 201320848936 U CN201320848936 U CN 201320848936U CN 203644903 U CN203644903 U CN 203644903U
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- China
- Prior art keywords
- battery pack
- heat dissipation
- change material
- porous surface
- heat pipe
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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
Abstract
The utility model discloses a composite heat dissipation device for a traction battery pack. The composite heat dissipation device comprises a box body, a cover plate, single batteries, a phase change material layer, a porous surface heat pipe, a heat dissipation sheet and fans, wherein a battery pack consisting of a plurality of single batteries is arranged in the box body; a seam is formed between adjacent single batteries, the phase change material layer is filled in the seams, the porous surface heat pipe is embedded in the phase change material layer, liquid cooling medium is introduced into the porous surface heat pipe, and the heat dissipation sheet is mounted on the cover plate; the porous surface heat pipe is connected with the heat dissipation sheet, the cover plate is in sealed matching with the box body, and the fans are mounted on the top end of the heat dissipation sheet; heat generated by the battery pack is stored by the phase change material layer, the heat in the phase change material layer is transmitted to the heat dissipation sheet through the porous surface heat pipe and finally emitted to the external environment. Heat generated by the battery pack determines the quantity of the fans that are turned on and is dissipated forcefully by the fans to keep the temperature of the battery not to rise due to the sharp increase of the heat generated by the battery pack, the safety of the battery is improved and the service life of the battery is prolonged.
Description
Technical field
The utility model relates to electric automobile power battery heat dissipation technology, relates in particular to a kind of composite heat dissipation device of power battery pack.
Background technology
Energy and environment have become the problem that Present Global is paid close attention to the most, and traditional is low as the conventional internal combustion engine thermal efficiency of fuel using gasoline or diesel oil, not only causes energy waste, cause energy crisis, also bring serious environmental pollution and ecological deterioration.And electric automobile because thering are energy-saving and environmental protection, can use various energy resources, noise is low etc., and lot of advantages has been subject to great attention.
Battery is as the critical component in electric automobile, and its performance directly affects the operation conditions of electric automobile, and temperature is the key factor that affects electrokinetic cell performance.When vehicle is under the different travel conditions of the checkers such as high speed, low speed, acceleration, deceleration, battery can discharge with different multiplying, produces amount of heat, battery pack limited space while adding car load design, cause the dissipation of heat in use procedure slower, battery temperature very easily raises.Too high temperature can cause the reduction of capacity, life-span and the energy efficiency of battery, if distribute heat not in time under high temperature can cause the generation of thermal runaway, violent expansion and the danger of blast seriously happens occasionally.
The heat management problems of current driving force battery has been subject to many battery manufacturers and expert's extensive concern, what on market, generally adopt is air cooling heat dissipation ventilation mode, but this mode cooling rate is slow, between battery cell, temperature distribution evenness is poor, and this safe operation to electrokinetic cell is very disadvantageous.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of composite heat dissipation device of power battery pack is provided, compared with prior art there is heat dissipation capacity large, radiating efficiency is high, processing is simple, utilizes phase-change material, heat pipe and air-cooled composite radiating mode to overcome the technical problem that is difficult to quick heat radiating after phase-change material heat accumulation.
The utility model is achieved through the following technical solutions:
A composite heat dissipation device for power battery pack, comprises casing 1, cover plate 5, cell 3, phase-change material layers 2, porous surface heat pipe 4, fin 6, fan 7; The battery pack that the interior placement of casing 1 is made up of multiple cells 3; Between each adjacent cell monomer, there is gap, in gap, fill phase-change material layers 2, and be embedded in porous surface heat pipe 4 at phase-change material layers 2, in porous surface heat pipe 4, be connected with liquid cools working medium, fin 6 is arranged on cover plate 5, this porous surface heat pipe 4 is connected with fin 6, and cover plate 5 is sealed and matched with casing 1, and fan 7 is arranged on the top of fin 6.
Described porous surface heat pipe 4 is divided into evaporation ends 8 and condensation end 9, and described evaporation ends 8 is placed in the inside of casing 1, and contacts with phase-change material layers 2, and condensation end 9 is placed in casing 1 outside through cover plate 5, and condensation end 9 is sealed and matched with cover plate 5 junctions.
Evaporation ends 8 surface coverage of described porous surface heat pipe 4 have the inter-adhesive metallic particles layer 8-1 of one deck, and condensation end 9 is smooth surface structure.
Described phase-change material layers 2 includes the composite phase-change material that graphite, carbon fiber or carbon nano-tube form.
Between described fin 6 and cover plate 5, adopt screw or be welded to connect.
Described fin 6 is aluminium alloy or copper.
With respect to prior art, the utlity model has following advantage and beneficial effect:
The utility model, by the combination of phase-change material layers, porous surface heat pipe, fin and fan, forms the multiple type of cooling of combined type, the volume of battery cooling system can be simplified and is dwindled, and is conducive to the fusion of cooling system and electric automobile; By multiple type of cooling synergy, can effectively control battery temperature, particularly, in the time that rugged environment moves, effectively ensure the uniformity of battery cell temperature; Can be according to the different requirements of the power of battery, determine the quantity that fan is opened.
The utility model scope of application is wide, can meet the requirement of different dynamic battery, as lithium ion, ni-mh, lead-acid battery etc.
Accompanying drawing explanation
Fig. 1 is the composite heat dissipation device structural representation of the utility model power battery pack;
Fig. 2 is the schematic top plan view that the composite heat dissipation device of the utility model power battery pack is removed fan;
Fig. 3 is the cross-sectional view of the composite heat dissipation device of the utility model power battery pack;
Fig. 4 is the porous surface heat pipe structure schematic diagram of the composite heat dissipation device of the utility model power battery pack.
Embodiment
Below in conjunction with specific embodiment, the utility model is more specifically described in detail.
Embodiment
As shown in Figures 1 to 3.The composite heat dissipation device of the utility model power battery pack, comprises casing 1, cover plate 5, cell 3, phase-change material layers 2, porous surface heat pipe 4, fin 6, fan 7; The battery pack that the interior placement of casing 1 is made up of multiple cells 3; Between each adjacent cell monomer, there is gap, in gap, fill phase-change material layers 2, and be embedded in porous surface heat pipe 4 at phase-change material layers 2, in porous surface heat pipe 4, be connected with liquid cools working medium, fin 6 is arranged on cover plate 5, this porous surface heat pipe 4 is connected with fin 6, and cover plate 5 is sealed and matched with casing 1, and fan 7 is arranged on the top of fin 6.
As shown in Figure 4.Described porous surface heat pipe 4 is divided into evaporation ends 8 and condensation end 9, and described evaporation ends 8 is placed in the inside of casing 1, and contacts with phase-change material layers 2, and condensation end 9 is placed in casing 1 outside through cover plate 5, and condensation end 9 is sealed and matched with cover plate 5 junctions.Evaporation ends 8 surface coverage of described porous surface heat pipe 4 have the inter-adhesive metallic particles layer 8-1 of one deck, and condensation end 9 is smooth surface structure.
Evaporation ends 8 absorbs battery pack heat by phase-change material 2, and condensation end 9 stretches out outside battery pack and coordinates release heat with fin 6.For avoiding heat disturbance, it between condensation end 9 and evaporation ends 8, is adiabatic end.For better heat absorption and heat radiation, need to increase heat exchange area, therefore be provided with metallic particles layer 8-1 attaching structure on evaporation ends 8 surfaces, condensation end 9 connects fin 6 and dispels the heat, between fin 6 and condensation end 9, scribble the heat-conducting silicone grease heat-resisting, heat conductivility is excellent, because the heat production of battery set charge/discharge process is non-linear, therefore, the existing heat cushioning effect of the latent heat of phase-change material layers 2 has again the effect of bulk temperature in balancing battery group.
Described phase-change material layers 2 includes the composite phase-change material that graphite, carbon fiber or carbon nano-tube form.Between described fin 6 and cover plate 5, adopt screw or be welded to connect.Described fin 6 is aluminium alloy or copper.
Liquid cools working medium in porous surface heat pipe 4, the heat of each cell 3 is sent to condensation end 9, by fin 6, heat is outputed to external environment condition, determine that according to the size of cell 3 discharge-rates or quantity of heat production the quantity of unlatching fan 7 is carried out forced heat radiation.Effectively compound by this Complex-cooling mode, can significantly reduce the temperature of battery pack, guarantees the consistency of each cell 3 temperature.
The quantity of fan 7 open number determined by the size of battery power discharge multiplying power or quantity of heat production, when power battery pack running environment relatively severe (as summer) or short time are when high power discharge, the temperature of power battery pack and then while sharply raising, in casing, phase-change material layers 2 cannot meet the needs of battery pack heat radiation, at this moment needing to open fan 7 forces cooling to condensation end 9 and fin 6, the diffusion of accelerated heat, battery pack heat is transmitted to condensation end 9 from the evaporation ends 8 of porous surface heat pipe 4 fast, reached the object of heat radiation.When battery pack 3 is during without high power discharge, heat reduces, and now the radiating mode of battery pack is to rely on phase-change material layers heat absorption function of environment heat emission to be realized by fin 6 with porous surface heat pipe 4.
Just can realize preferably as mentioned above the utility model.
Above-described embodiment is preferred embodiments of the present utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from the change of doing under Spirit Essence of the present utility model and principle and should be equivalent substitute mode, is included in protection range of the present utility model.
Claims (6)
1. a composite heat dissipation device for power battery pack, is characterized in that: comprise casing, cover plate, cell, phase-change material layers, porous surface heat pipe, fin, fan; In casing, place the battery pack being formed by multiple cells; Between each adjacent cell monomer, there is gap, in gap, fill phase-change material layers, and be embedded in porous surface heat pipe at phase-change material layers, in porous surface heat pipe, be connected with liquid cools working medium, fin is installed on the cover board, this porous surface heat pipe is connected with fin, and cover plate coordinates with box sealing, and fan is arranged on the top of fin.
2. the composite heat dissipation device of power battery pack according to claim 1, it is characterized in that: described porous surface heat pipe is divided into evaporation ends and condensation end, described evaporation ends is placed in the inside of casing, and contact with phase-change material layers, condensation end is placed in casing outside through cover plate, and condensation end and cover plate junction are sealed and matched.
3. the composite heat dissipation device of power battery pack according to claim 2, is characterized in that: the evaporation ends surface coverage of described porous surface heat pipe has the inter-adhesive metallic particles layer of one deck, and condensation end is smooth surface structure.
4. the composite heat dissipation device of power battery pack according to claim 1, is characterized in that: described phase-change material layers includes the composite phase-change material that graphite, carbon fiber or carbon nano-tube form.
5. the composite heat dissipation device of power battery pack according to claim 1, is characterized in that: between described fin and cover plate, adopt screw or be welded to connect.
6. the composite heat dissipation device of power battery pack according to claim 5, is characterized in that: described fin is aluminium alloy or copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848936.0U CN203644903U (en) | 2013-12-20 | 2013-12-20 | Composite heat dissipation device for traction battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848936.0U CN203644903U (en) | 2013-12-20 | 2013-12-20 | Composite heat dissipation device for traction battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203644903U true CN203644903U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320848936.0U Expired - Fee Related CN203644903U (en) | 2013-12-20 | 2013-12-20 | Composite heat dissipation device for traction battery pack |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682517A (en) * | 2013-12-20 | 2014-03-26 | 华南理工大学 | Combined heat dissipation device of power battery pack |
| CN106159358A (en) * | 2016-07-19 | 2016-11-23 | 超威电源有限公司 | Heat management device of power battery and thermal management algorithm |
| CN108475747A (en) * | 2016-02-01 | 2018-08-31 | 株式会社自动网络技术研究所 | Power storage module |
| CN108493514A (en) * | 2018-05-16 | 2018-09-04 | 西安科技大学 | A kind of heat dissipation of battery pack and heating device and control method |
| CN109659644A (en) * | 2019-01-31 | 2019-04-19 | 广东硅岳能源科技有限公司 | A kind of self radiation type emergency cell group of its composition of phase-change accumulation energy monomer |
| CN111354995A (en) * | 2018-12-20 | 2020-06-30 | 比亚迪股份有限公司 | Battery thermal management system for vehicle and vehicle |
-
2013
- 2013-12-20 CN CN201320848936.0U patent/CN203644903U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682517A (en) * | 2013-12-20 | 2014-03-26 | 华南理工大学 | Combined heat dissipation device of power battery pack |
| CN108475747A (en) * | 2016-02-01 | 2018-08-31 | 株式会社自动网络技术研究所 | Power storage module |
| CN108475747B (en) * | 2016-02-01 | 2021-03-12 | 株式会社自动网络技术研究所 | Electricity storage module |
| CN106159358A (en) * | 2016-07-19 | 2016-11-23 | 超威电源有限公司 | Heat management device of power battery and thermal management algorithm |
| CN106159358B (en) * | 2016-07-19 | 2018-10-09 | 超威电源有限公司 | Heat management device of power battery and thermal management algorithm |
| CN108493514A (en) * | 2018-05-16 | 2018-09-04 | 西安科技大学 | A kind of heat dissipation of battery pack and heating device and control method |
| CN108493514B (en) * | 2018-05-16 | 2024-01-26 | 西安科技大学 | Heat dissipation and heating device of battery pack and control method |
| CN111354995A (en) * | 2018-12-20 | 2020-06-30 | 比亚迪股份有限公司 | Battery thermal management system for vehicle and vehicle |
| CN109659644A (en) * | 2019-01-31 | 2019-04-19 | 广东硅岳能源科技有限公司 | A kind of self radiation type emergency cell group of its composition of phase-change accumulation energy monomer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20161220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |