CN105280983A - Heat dissipation system of power battery pack of electric vehicle - Google Patents
Heat dissipation system of power battery pack of electric vehicle Download PDFInfo
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- CN105280983A CN105280983A CN201510623286.3A CN201510623286A CN105280983A CN 105280983 A CN105280983 A CN 105280983A CN 201510623286 A CN201510623286 A CN 201510623286A CN 105280983 A CN105280983 A CN 105280983A
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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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Abstract
The invention discloses a heat dissipation system of a cylindrical lithium ion battery pack. The heat dissipation system comprises a plurality of metal heat dissipation frameworks; each heat dissipation framework is corresponding to a unit battery, and each heat dissipation framework comprises an inner circular frame, an outer square frame and fins in the middle; the inner diameter of the inner circular frame is matched with the outer diameter of the unit battery; and the heat energy of the battery is transferred to the inner circular frame, the fins and the outer square frame in sequence. The outer surface of the battery is fully used to conduct the heat energy from the battery to the heat dissipation framework; the heat exchanging area of the battery pack and the air is enlarged by the fins, so that the required fin area can be designed according to needs to fully stratify the heat radiation powder demands of the power battery packs by designing the size of the outer frame and the density of the fins conveniently; and in addition, the heat dissipation frames on circular battery sleeves are changed into square or hexagonal heat dissipation frames so as to facilitate the seamless tightened arrangement of the heat dissipation frames and the heat transfer among the heat dissipation frames, as well as to facilitate the balanced temperature of the whole battery pack.
Description
Technical field
The present invention relates to electric vehicle engineering field, be specifically related to a kind of cooling system of electric automobile power battery group.
Background technology
Lithium ion battery is widely used in electric automobile because of its superior performance, but meeting heat production in the lithium ion battery course of work, if dispelled the heat not in time, just easily causes the heat build-up of inside battery, even cause breaking down, security incident occurs.Temperature rises, and the internal resistance of cell reduces, and improves battery performance to a certain extent.But the rising of temperature, can accelerate inside battery heat-producing chemical reaction speed, cause the generation of more heat, may destroy battery and bring out thermal runaway.In the process of moving, because of the reason such as start-stop or speed change, electrokinetic cell load fluctuation rises and falls electric automobile, battery heat production dynamic change, and changeable pavement behavior and environmental condition mean radiating condition also dynamic change.The raising of electric automobile course continuation mileage will be sought development more great-capacity power battery, also require that battery possesses good fast charging and discharging ability, also may there is the situation such as battery abuse or accident (as clashed into) in actual use, these factors all can worsen battery heat removal system condition of work further.For battery pack, along with size increases, in pile, cell produces/dispels the heat unbalanced more outstanding, if thermal solution design is improper, very serious unbalanced Temperature Distribution can be produced between disparate modules and battery module each cell inner in battery pack, thus cause cell lack of balance to use, cause battery module premature failure further.Therefore, exploitation is effective Li-ion batteries piles heat management system rationally, for raising electric automobile fail safe and useful life most important.
At present, columniform lithium ion battery produces International standardization, such as 18650 and 26650 models.Because its production standard, cost is low, stable performance, the advantages such as good heat dissipation effect, is adopted as its power battery pack unit by many electric automobile enterprises.
Solve column lithium ion battery heat dissipation problem, main attention solves two contradictions, and one is that heat must be derived from inside battery; Two is that heat finally will be dispersed in the middle of surrounding air, needs larger area with air contact.At present, cylindrical batteries shape determines its heat and has to pass through the face of cylinder and derive, and only rely on the face of cylinder itself to contact with air and carry out heat and distribute, obvious area is fixing, limited, there will be thermal resistance comparatively greatly, the problem such as not in time of dispelling the heat.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of cooling system of electric automobile power battery group, to carry the radiating effect of battery pack.
To achieve these goals, the technical scheme that the present invention takes is:
A kind of cooling system of electric automobile power battery group, comprise the heat-dissipating frame of some metal materials, an element cell of the corresponding power battery pack of each heat-dissipating frame, this element cell is column lithium ion battery, and each heat-dissipating frame comprises inner circle frame, outer square frame, and be arranged on the fin between inner circle frame and outer square frame;
The described internal diameter of inner circle frame and the external diameter of element cell match, and inwall can fit tightly with the outer wall of the element cell of inserting wherein;
Described outer square frame is square, regular hexagon or pentagonal configuration, and described pentagonal configuration for splicing one with this foursquare limit for base and the pentagon that formed of the isosceles triangle that drift angle is 120 degree on square;
An element cell can be inserted in the inner circle frame of each heat-dissipating frame, by the profile of described outer square frame, battery pack array is lined up in each heat-dissipating frame closed seamless unoccupied place, the heat of element cell is transmitted to described inner circle frame, described fin and described outer square frame successively, the mutual transferring heat of described outer square frame of adjacent heat radiation framework.
With air in other air cooling mode compared with the direct heat transfer of battery outer surface, the cooling system of electric automobile power battery group of the present invention, one, the outer surface of battery is taken full advantage of, heat is exported in heat-dissipating frame from battery, and battery outer surface can insulate, Insulated positions is placed on the outer surface of aluminium frame, so advantageously in heat conduction, because insulating barrier is all generally the non-conductor of heat; Two, fin expands the heat exchange area with air heat-exchange, can the fin area of design as required, fully meets the heat radiation power demand of power battery pack, is realized very easily by the design size of housing and the density of fin; Three, circular batteries is put heat radiation frame and become square or hexagon is beneficial to heat transfer between seamless close-packed arrays between them and individual frame, be conducive to the temperature equalization of whole battery pack.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of square heat-dissipating frame;
Fig. 2 is element cell schematic diagram;
Fig. 3 is the vertical view of heat-dissipating frame square shown in Fig. 1;
Fig. 4 is the assembling schematic diagram of element cell and heat-dissipating frame;
Fig. 5 is the array that the heat-dissipating frame after being inserted in element cell is lined up;
The schematic diagram of Fig. 6 to be profile be hexagonal heat-dissipating frame;
Fig. 7 is the vertical view of hexagon heat-dissipating frame;
Fig. 8 is the array that the hexagon heat-dissipating frame being inserted in power-supply battery is lined up;
Fig. 9 is the vertical view of pentagon heat-dissipating frame.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
The cooling system of electric automobile power battery group of the present invention, as shown in Fig. 1,2,4, comprises multiple heat-dissipating frame 1, the corresponding column lithium ion battery (element cell) 2 of each heat-dissipating frame.For the heat-dissipating frame 1 that the profile shown in Fig. 1 is square, as shown in Figure 3, heat-dissipating frame 1 comprises inner circle frame 1b, fin 1d and outer square frame 1e, and inner circle frame 1b surrounds center hole 1a, is fin 1d and fin clearance 1c between inner circle frame 1b and outer square frame 1e.Wherein, the radius of center hole 1a is suitable with the external diameter of element cell 2, and element cell 2 suitably can coat heat-conducting cream or glue is closely nested in the middle of center hole 1a, as shown in Figure 3.Element cell 2 outer surface can insulate, and is conducive to heat to conduct to framework 1 from battery 2.And insulate at the outer square frame 1e outer surface of heat-dissipating frame 1.As shown in Figure 5, what multiple square frame utilized its square profiles closed seamless gap is arranged in battery pack array, is conducive to heat exchange between each framework like this, and is combined into solid overall structure.
The course of work of this cooling system is: the heat trnasfer produced when element cell 2 works is to heat-dissipating frame 1.The conducting path of heat on heat-dissipating frame is that element cell 2 conducts to inner circle frame 1b, pass to fin 1d again, fin 1d and the air heat-exchange flowing through fin clearance 1c, heat is taken away by air, remaining heat passes to outer square frame 1e, if have the temperature difference between each frame of battery pack, heat by by housing 1e from the higher cell conducts of temperature to the lower unit of temperature, make battery pack temperature be tending towards even.
Consider thermal conductivity and economical, the heat-dissipating frame of this cooling system preferably adopts aluminium.
As Fig. 6,7, shown in 8 and 9, the outer square frame of heat-dissipating frame 1, except square structure, can also be pentagon and hexagon.If hexagon, be then regular hexagon, orthohexagonal structure makes the arrangement between unit more tight, and between two row's batteries, spacing is shorter, and as shown in Figure 8, the battery pack of composition is compacter.The overall structure of hexagonal honeycomb array is also more firm, is not easy to vibrate and the dislocation that is moved between each row.If pentagon, in order to the compact that arranges and stability, this pentagon is not preferably regular pentagon, and should be the pentagon shown in Fig. 9, on square, namely splices one with this foursquare limit for base and the pentagon that formed of the isosceles triangle that drift angle is 120 degree.
As a preferred embodiment, if battery power is less, without the need to carrying out air blast cooling in fin clearance, namely under passive cooling service condition, solid-liquid phase change materials such as filling paraffin can be added in gap.Paraffin can melt heat absorption in the rational temperature range of battery pack, makes battery still can maintain more excellent operating temperature to a certain extent under dynamic operating condition.Because paraffin melting rear conductive coefficient is less, fin now serves as enhancing thermally conductive pathways, compensate for the paraffin melting shortcoming that conductive coefficient is lower later.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (5)
1. a cooling system for electric automobile power battery group, is characterized in that,
Comprise the heat-dissipating frame of some metal materials, an element cell of the corresponding power battery pack of each heat-dissipating frame, this element cell is column lithium ion battery, and each heat-dissipating frame comprises inner circle frame, outer square frame, and is arranged on the fin between inner circle frame and outer square frame;
The described internal diameter of inner circle frame and the external diameter of element cell match, and inwall can fit tightly with the outer wall of the element cell of inserting wherein;
Described outer square frame is square, regular hexagon or pentagonal configuration, and described pentagonal configuration for splicing one with this foursquare limit for base and the pentagon that formed of the isosceles triangle that drift angle is 120 degree on square;
An element cell can be inserted in the inner circle frame of each heat-dissipating frame, by the profile of described outer square frame, battery pack array is lined up in each heat-dissipating frame closed seamless unoccupied place, the heat of element cell is transmitted to described inner circle frame, described fin and described outer square frame successively, the mutual transferring heat of described outer square frame of adjacent heat radiation framework.
2. the cooling system of electric automobile power battery group according to claim 1, is characterized in that,
Described heat-dissipating frame is the metal framework of aluminium matter.
3. the cooling system of electric automobile power battery group according to claim 1 and 2, is characterized in that,
The outer surface of described outer square frame becomes a layer insulating or coating insulating material by oxidation processes.
4. the cooling system of electric automobile power battery group according to claim 1 and 2, is characterized in that,
Under passive cooling service condition, the gap-fill solid-liquid phase change heat accumulating between described fin.
5. the cooling system of electric automobile power battery group according to claim 4, is characterized in that,
Described solid-liquid phase change heat accumulating is paraffin.
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| CN201510623286.3A CN105280983A (en) | 2015-09-25 | 2015-09-25 | Heat dissipation system of power battery pack of electric vehicle |
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| CN201510623286.3A CN105280983A (en) | 2015-09-25 | 2015-09-25 | Heat dissipation system of power battery pack of electric vehicle |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785193A (en) * | 2016-12-06 | 2017-05-31 | 佛山科学技术学院 | It is a kind of based on phase-change material and air-cooled battery detecting heat abstractor and method |
| CN107623154A (en) * | 2017-09-29 | 2018-01-23 | 北京航空航天大学 | The cylindrical battery pack heat dissipation device and method of a kind of radiated rib using composite phase-change material |
| CN110120480A (en) * | 2019-04-23 | 2019-08-13 | 深圳市华宝新能源股份有限公司 | Battery modules shell and battery modules |
| CN110495014A (en) * | 2017-10-10 | 2019-11-22 | 株式会社Lg化学 | The method of column secondary battery module and manufacture column secondary battery module |
| 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 |
| US10777861B2 (en) | 2017-06-09 | 2020-09-15 | Ge Aviation Systems Limited | Battery pack |
| CN112038727A (en) * | 2020-08-20 | 2020-12-04 | 南京航空航天大学 | Air cooling cylinder power battery package that contains bionical surface microstructure heat dissipation piece |
| CN113380283A (en) * | 2021-06-09 | 2021-09-10 | 西安交通大学 | M2 solid state disk heat dissipation subsides |
| CN113540618A (en) * | 2021-07-16 | 2021-10-22 | 重庆电子工程职业学院 | Electric automobile power distribution system with stable working condition |
| CN115084718A (en) * | 2022-08-23 | 2022-09-20 | 四川大学 | Small-size power battery package unit, heat transfer structure and electric motor car |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609901A (en) * | 2009-07-14 | 2009-12-23 | 广东工业大学 | A kind of recycling high-efficiency heat-radiating battery device for electric vehicle |
| CN101714645A (en) * | 2008-10-08 | 2010-05-26 | 三星Sdi株式会社 | Rechargeable battery, battery module and rechargeable battery assembly |
| CN102231447A (en) * | 2011-05-24 | 2011-11-02 | 华南理工大学 | Coupled radiating power battery pack of PCM (phase-change material) heat pipes |
| CN102544622A (en) * | 2011-12-31 | 2012-07-04 | 广东工业大学 | Power battery cooling system based on foam metal/composite phase change material |
| CN104769769A (en) * | 2012-10-31 | 2015-07-08 | 三洋电机株式会社 | Battery module |
-
2015
- 2015-09-25 CN CN201510623286.3A patent/CN105280983A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714645A (en) * | 2008-10-08 | 2010-05-26 | 三星Sdi株式会社 | Rechargeable battery, battery module and rechargeable battery assembly |
| CN101609901A (en) * | 2009-07-14 | 2009-12-23 | 广东工业大学 | A kind of recycling high-efficiency heat-radiating battery device for electric vehicle |
| CN102231447A (en) * | 2011-05-24 | 2011-11-02 | 华南理工大学 | Coupled radiating power battery pack of PCM (phase-change material) heat pipes |
| CN102544622A (en) * | 2011-12-31 | 2012-07-04 | 广东工业大学 | Power battery cooling system based on foam metal/composite phase change material |
| CN104769769A (en) * | 2012-10-31 | 2015-07-08 | 三洋电机株式会社 | Battery module |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785193B (en) * | 2016-12-06 | 2019-12-06 | 佛山科学技术学院 | battery detection heat dissipation device and method based on phase change material and air cooling |
| CN106785193A (en) * | 2016-12-06 | 2017-05-31 | 佛山科学技术学院 | It is a kind of based on phase-change material and air-cooled battery detecting heat abstractor and method |
| US10777861B2 (en) | 2017-06-09 | 2020-09-15 | Ge Aviation Systems Limited | Battery pack |
| CN107623154A (en) * | 2017-09-29 | 2018-01-23 | 北京航空航天大学 | The cylindrical battery pack heat dissipation device and method of a kind of radiated rib using composite phase-change material |
| CN110495014A (en) * | 2017-10-10 | 2019-11-22 | 株式会社Lg化学 | The method of column secondary battery module and manufacture column secondary battery module |
| CN110495014B (en) * | 2017-10-10 | 2022-03-08 | 株式会社Lg化学 | Cylindrical secondary battery module and method of manufacturing the same |
| US11961956B2 (en) | 2017-10-10 | 2024-04-16 | Lg Energy Solution, Ltd. | Cylindrical secondary battery module and method for producing cylindrical secondary battery module |
| 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 |
| CN110120480A (en) * | 2019-04-23 | 2019-08-13 | 深圳市华宝新能源股份有限公司 | Battery modules shell and battery modules |
| CN112038727A (en) * | 2020-08-20 | 2020-12-04 | 南京航空航天大学 | Air cooling cylinder power battery package that contains bionical surface microstructure heat dissipation piece |
| CN113380283A (en) * | 2021-06-09 | 2021-09-10 | 西安交通大学 | M2 solid state disk heat dissipation subsides |
| CN113540618A (en) * | 2021-07-16 | 2021-10-22 | 重庆电子工程职业学院 | Electric automobile power distribution system with stable working condition |
| CN113540618B (en) * | 2021-07-16 | 2022-07-22 | 重庆电子工程职业学院 | Electric automobile power distribution system with stable working condition |
| CN115084718A (en) * | 2022-08-23 | 2022-09-20 | 四川大学 | Small-size power battery package unit, heat transfer structure and electric motor car |
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