CN103996888A - Honeycomb-shaped liquid cooling device of lithium battery - Google Patents
Honeycomb-shaped liquid cooling device of lithium battery Download PDFInfo
- Publication number
- CN103996888A CN103996888A CN201410224464.0A CN201410224464A CN103996888A CN 103996888 A CN103996888 A CN 103996888A CN 201410224464 A CN201410224464 A CN 201410224464A CN 103996888 A CN103996888 A CN 103996888A
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- liquid
- battery
- liquid cooling
- heat
- cavity
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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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a honeycomb-shaped liquid cooling device of a lithium battery. The honeycomb-type liquid cooling device comprises a closed heat collection cavity, wherein one end of the heat collection cavity is provided with a liquid inlet, the other end of the heat collection cavity is provided with a liquid outlet, and the liquid inlet and the liquid outlet are serially connected with each other through a liquid cooling pipe to form a liquid cooling system loop; two side surfaces of the heat collection cavity are respectively provided with a honeycomb-shaped battery cavities which are communicated with each other and used for installing a battery; a passage which is used for the following of liquid is arranged between the outer walls of the battery cavity on an inner cavity of the heat collection cavity; a liquid cavity is formed between the inner wall of the heat collection cavity and the outer wall of the battery cavity, and the liquid inlet and the liquid outlet are communicated with the liquid cavity. Refrigerating liquid in a liquid storage box is guided into the liquid cavity in the heat collection cavity from the liquid inlet through a liquid cooling pump and flow in the passage between the outer walls of the two battery cavities, so that the heat produced by the battery can be brought away in time, then the refrigerating liquid flows into a heat radiator from the liquid outlet so as to exchange the heat, and a circularly cooling purpose can be realized.
Description
Technical field
The present invention relates to pure electronic and mixed electrical automobile battery thermal management technical field, be specifically related to a kind of honeycomb fashion liquid cooling apparatus of lithium battery.
Background technology
In recent years, because the problem of energy cost and environmental pollution is more and more outstanding, pure electric automobile and hybrid vehicle can significantly be eliminated the even advantage of zero-emission vehicle tail gas with it, are subject to the attention of government and each Automobile Enterprises.One of key technology of new-energy automobile is electrokinetic cell, and the quality of battery is determining the cost of electric automobile on the one hand, is determining on the other hand the distance travelled of electric automobile.But pure electronic and hybrid vehicle still has a lot of technical problems to need to break through, battery and capacity attenuation are major issues, and the temperature contrast of the useful life of battery and capacity attenuation and battery system and temperature rising amplitude have great relation.
Battery produces a large amount of heats at work, if this heat can not be discharged from time, will make the temperature of power brick constantly increase, in power brick, the temperature contrast of the battery of diverse location can expand gradually, make in the adverse circumstances of battery in high temperature rise, the large temperature difference, thereby affect useful life of electrokinetic cell.Particularly in hot summer, because ambient temperature is very high, final temperature rise will be much larger than the rational working range of battery, thereby has a strong impact on battery life and capacity, and causes larger puzzlement for cell discharge performance.In addition on the one hand, battery service behaviour is at low temperatures very poor, particularly particularly evident in cold winter, charge-discharge performance is compared with far short of what is expected under normal temperature, in order to make battery also can meet at low temperatures the demand that electrokinetic cell discharges and recharges, power brick is carried out to heat temperature raising, and to make it be operated in the best temperature that discharges and recharges be necessary heat management measure.
Therefore, in order to improve the performance of new-energy automobile, make battery system bring into play best performance and life-span, the heat management device of high temperature heat radiation, low-temperature heat just need to be provided battery.
The heat management of existing battery generally adopts Natural Heat Convection, air blast cooling heat radiation, evaporator that the modes such as low-temperature receiver heat radiation, liquid-cooling heat radiation are provided.Wherein liquid-cooling heat radiation mode is because the specific heat capacity of liquid is much larger than the specific heat capacity of air, less flow just can be taken away larger heat, thereby take the heat of battery system to system outside efficiently, reduce the temperature rise of battery system, improve the serviceability of battery.Now a lot of new-energy automobiles all adopt liquid-cooling heat radiation mode to carry out thermal management scheme as battery system.But existing liquid cooling thermal management scheme is mainly clipped between two battery modules by liquid cooling plate, or interspersed liquid cooling pipeline between battery, make the heat that battery sends can not be directly passed to liquid cooling liquid, or because liquid cooling pipe only contacts with the very fraction outer surface of battery, make to be at thermal source that battery arrives the thermal resistance of liquid cooling liquid larger, thereby temperature rise is increased, can not bring into play the function of liquid cooling system completely.
Summary of the invention
Object of the present invention is just to provide a kind of honeycomb fashion liquid cooling apparatus of lithium battery, solve the thermal resistance excessive problem of lithium battery to liquid cooling liquid, make the heat producing when battery operated can rapidly and efficiently be delivered to liquid cooling liquid, then be recycled to liquid cooling heat exchanger by liquid at liquid cooling pipeline heat is taken in system external environment condition.
In order to reach above-mentioned effect, the invention provides a kind of honeycomb fashion liquid cooling apparatus of lithium battery, comprise a closed heat collector cavity, one end of described heat collector cavity is provided with inlet, the other end is provided with liquid outlet, and described inlet, liquid outlet form liquid cooling system loop by liquid cooling pipe string connection; The two sides of described heat collector cavity offer mutual perforation, for the cellular battery cavities of battery is installed; The battery cavities outer wall that is positioned at the inner chamber place of heat collector cavity leaves the passage for liquid flow each other; Between the inwall of described heat collector cavity and the outer wall of battery cavities, form fluid chamber, described inlet, liquid outlet are all communicated with described fluid chamber.
Further, the length of described battery cavities is not more than the height of battery.More optimizedly the length of battery cavities is also that the width of heat collector cavity just in time equates with the height of lithium battery, thereby can dispel the heat to battery better.
Further, the inwall of described battery cavities is provided with one deck heat-conducting layer, and the material of described heat-conducting layer is thermal interfacial material.
Further, described thermal interfacial material is heat-conducting silicone grease.
Further, described liquid cooling system comprises liquid reserve tank, liquid cooling pump, radiator, and the port of export of described liquid reserve tank is connected with the inlet of heat collector cavity by liquid cooling pump, and the liquid outlet of described heat collector cavity is connected to form circulation fluid cold loop by radiator and liquid reserve tank.
Wherein radiator is preferably air cooling heat exchanger.
In the present invention, form the cellular battery cavities of mutual perforation at the upper/lower terminal face of heat collector cavity, this manufacturing process is very ripe, conventionally use injection moulding, die cast to form, or become a cavity body structure by upper and lower two injection molding parts by ultra-sonic welded, certainly also have other manufacturing process to adopt.
When use, lithium battery monomer is placed in battery cavities, the outer wall of battery and the inwall of battery cavities fit, then increase the heat-conducting layer that one deck is formed by thermal interfacial materials such as heat-conducting silicone greases between them.Because liquid outer wall round battery cavities in fluid chamber flows, can take away fully the heat that battery produces, reach better heat sinking function.
Refrigerant liquid in liquid reserve tank imports the fluid chamber in heat collector cavity by liquid cooling pump from inlet, current in the passage between battery cavities outer wall between two, in time area battery because sending out heat thermogenetic, then go out to enter radiator from fluid oral fluid and carry out heat exchange, realize the object of circulation temperature lowering.
Thermal interfacial material (Thermal Interface Materials) is called again heat-conducting interface material or interface Heat Conduction Material, the microvoid of generation and the hole of surface irregularity while being mainly used in filling up bi-material joint or contact, reduce heat transmit impedance, improve thermal diffusivity.Between the surface of solids and the surface of solids, have imperceptible rough space, if they are directly installed on together, the real contact area between them generally only has 10% of foot of radiator area, and all the other are air gap.Because air conductive coefficient only has 0.026W/ (mK), be hot non-conductor, by larger the contact heat resistance of battery and battery room wall, can hinder the conduction of heat, finally cause the usefulness of heat management to reduce.Use has the thermal interfacial material of high-termal conductivity and fills full these gaps, gets rid of air wherein, between battery and battery room wall, sets up effective thermal conduction path, and significantly low contact heat resistance, is brought into play the effect of radiator fully.
Meanwhile, the battery cavities in heat collector cavity of the present invention, except the function of heat radiation, can also be born the function of fixed installation lithium battery.In heat collector cavity of the present invention, the wall thickness of different parts can design according to actual conditions, plays the effect of fixing lithium battery.
The lithium battery being installed in the battery cavities in heat collector cavity of the present invention forms battery modules by series and parallel, then by the lithium battery in several heat collector cavities again series and parallel get up to form and high-powerly have battery pack for automobile.The fluid chamber that refrigerant liquid imports in each heat collector cavity by liquid cooling pump is carried out radiating and cooling, thus the performance of the battery of protecting well.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A horizontal cross in Fig. 1;
The vertical view of Fig. 2 in Fig. 3;
Fig. 4 is B-B vertical sectional view in Fig. 1;
Fig. 5 is the liquid cooling circulation schematic diagram of battery case.
In figure: 1-heat collector cavity, 2-inlet, 3-liquid outlet, 4-battery cavities, 5-fluid chamber, 6-passage, 7-battery case, 8-air cooling heat exchanger, 9-liquid reserve tank, 10-liquid cooling pump.
Embodiment
As shown in Figure 1, a kind of honeycomb fashion liquid cooling apparatus of lithium battery, comprises a closed heat collector cavity 1, and one end of described heat collector cavity 1 is provided with inlet 2, the other end is provided with liquid outlet 3, and described inlet 2, liquid outlet 3 form liquid cooling system loop by liquid cooling pipe string connection; The two sides of described heat collector cavity 1 offer mutual perforation, for the cellular battery cavities 4 of battery is installed; As shown in Figure 3, the battery cavities outer wall that is positioned at the inner chamber place of heat collector cavity leaves the passage 6 for liquid flow each other; As in Figure 2-4, between the inwall of heat collector cavity 1 and the outer wall of battery cavities, form fluid chamber 5, described inlet 2, liquid outlet 3 are communicated with described fluid chamber 5.
Further, the length of described battery cavities 4 is not more than the height of battery.More optimizedly the length of battery cavities is also that the width of heat collector cavity just in time equates with the height of lithium battery, thereby can dispel the heat to battery better.
More excellent, the inwall of described battery cavities 4 is provided with one deck and is filled the heat-conducting layer forming by heat-conducting silicone grease.
As shown in Figure 5, in the battery cavities in heat collector cavity 1, install lithium battery, and carry out series and parallel and form battery case 7 with the battery in other heat collector cavity.The port of export of liquid reserve tank 9 is connected with the inlet of heat collector cavity 1 by liquid cooling pump 10, and the liquid outlet of heat collector cavity 1 is connected to form the circulation circuit of liquid cooling system by air cooling heat exchanger 8 and liquid reserve tank 9.Refrigerant liquid in liquid reserve tank 9 by liquid cooling pump 10 from importing the fluid chamber in each heat collector cavity 1, current in the passage between battery cavities outer wall between two, in time area battery because sending out heat thermogenetic, flow out from the liquid outlet of heat collector cavity 1 again, enter again in air cooling heat exchanger 8 and carry out heat exchange, realize the object of circulation temperature lowering.
Above embodiment is not limited only to protection scope of the present invention, all modify based on basic thought of the present invention or change all belong to protection scope of the present invention.
Claims (5)
1. a honeycomb fashion liquid cooling apparatus for lithium battery, is characterized in that: comprise a closed heat collector cavity, one end of described heat collector cavity is provided with inlet, the other end is provided with liquid outlet, and described inlet, liquid outlet form liquid cooling system loop by liquid cooling pipe string connection; The two sides of described heat collector cavity offer mutual perforation, for the cellular battery cavities of battery is installed; The battery cavities outer wall that is positioned at the inner chamber place of heat collector cavity leaves the passage for liquid flow each other; Between the inwall of described heat collector cavity and the outer wall of battery cavities, form fluid chamber, described inlet, liquid outlet are all communicated with described fluid chamber.
2. the honeycomb fashion liquid cooling apparatus of lithium battery according to claim 1, is characterized in that: the length of described battery cavities is not more than the height of battery.
3. the honeycomb fashion liquid cooling apparatus of lithium battery according to claim 1, is characterized in that: the inwall of described battery cavities is provided with one deck heat-conducting layer, the material of described heat-conducting layer is thermal interfacial material.
4. the honeycomb fashion liquid cooling apparatus of lithium battery according to claim 1, is characterized in that: described thermal interfacial material is heat-conducting silicone grease.
5. the honeycomb fashion liquid cooling apparatus of lithium battery according to claim 1, it is characterized in that: described liquid cooling system also comprises liquid reserve tank, liquid cooling pump, radiator, the port of export of described liquid reserve tank is connected with the inlet of heat collector cavity by liquid cooling pump, and the liquid outlet of described heat collector cavity is connected to form circulation fluid cold loop by radiator and liquid reserve tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410224464.0A CN103996888B (en) | 2014-05-26 | 2014-05-26 | A kind of honeycomb fashion liquid cooling apparatus of lithium battery |
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| CN201410224464.0A CN103996888B (en) | 2014-05-26 | 2014-05-26 | A kind of honeycomb fashion liquid cooling apparatus of lithium battery |
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| CN103996888A true CN103996888A (en) | 2014-08-20 |
| CN103996888B CN103996888B (en) | 2016-11-23 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3046178A1 (en) * | 2015-01-15 | 2016-07-20 | Saft | Battery provided with a device for thermal regulation of electrochemical elements, associated manufacturing method |
| CN106785185A (en) * | 2016-10-27 | 2017-05-31 | 骆驼集团新能源电池有限公司 | A kind of liquid is cold and heating integral dynamic lithium battery PACK |
| CN107611295A (en) * | 2017-08-04 | 2018-01-19 | 浙江吉利汽车研究院有限公司 | A kind of power battery thermal management system |
| CN107666024A (en) * | 2016-07-29 | 2018-02-06 | 深圳市沃特玛电池有限公司 | A kind of liquid-cooled heat management system of battery bag |
| CN108493506A (en) * | 2018-05-07 | 2018-09-04 | 福州鼎烯飞扬科技有限公司 | A kind of novel battery pack arrangement |
| CN109687054A (en) * | 2018-12-27 | 2019-04-26 | 江南大学 | A kind of liquid cooling battery heat removal system |
| CN110138133A (en) * | 2019-06-14 | 2019-08-16 | 安徽大学 | A kind of split type liquid cooling casing of spherical motor |
| CN111490312A (en) * | 2020-06-28 | 2020-08-04 | 四川大学 | Integrated radiator based on diffusion welding technology for power battery pack |
| CN112117512A (en) * | 2020-08-25 | 2020-12-22 | 江苏科技大学 | New energy automobile lithium battery thermal management system based on liquid medium |
| CN114322908A (en) * | 2021-12-20 | 2022-04-12 | 飞荣达科技(江苏)有限公司 | Liquid cooling plate flatness measuring tool and using method |
| CN115000602A (en) * | 2022-07-13 | 2022-09-02 | 深圳市新鹏翔电子有限公司 | Lithium ion battery and conjuncted lithium cell group |
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| CN101841072A (en) * | 2010-02-09 | 2010-09-22 | 北汽福田汽车股份有限公司 | Liquid cooling system of storage battery and liquid cooling method of storage battery |
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Patent Citations (5)
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| US6255015B1 (en) * | 1998-08-23 | 2001-07-03 | Ovonic Battery Company, Inc. | Monoblock battery assembly |
| CN1735980A (en) * | 2003-01-03 | 2006-02-15 | 双向电池公司 | Battery with insulative tubular housing |
| WO2011035676A1 (en) * | 2009-09-24 | 2011-03-31 | Fan Feiyue | Compressor refrigeration type storage battery cooling cabinet |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3046178A1 (en) * | 2015-01-15 | 2016-07-20 | Saft | Battery provided with a device for thermal regulation of electrochemical elements, associated manufacturing method |
| CN107666024A (en) * | 2016-07-29 | 2018-02-06 | 深圳市沃特玛电池有限公司 | A kind of liquid-cooled heat management system of battery bag |
| CN106785185A (en) * | 2016-10-27 | 2017-05-31 | 骆驼集团新能源电池有限公司 | A kind of liquid is cold and heating integral dynamic lithium battery PACK |
| CN107611295A (en) * | 2017-08-04 | 2018-01-19 | 浙江吉利汽车研究院有限公司 | A kind of power battery thermal management system |
| CN108493506A (en) * | 2018-05-07 | 2018-09-04 | 福州鼎烯飞扬科技有限公司 | A kind of novel battery pack arrangement |
| CN109687054A (en) * | 2018-12-27 | 2019-04-26 | 江南大学 | A kind of liquid cooling battery heat removal system |
| CN109687054B (en) * | 2018-12-27 | 2024-05-14 | 江南大学 | Liquid cooling battery cooling system |
| CN110138133B (en) * | 2019-06-14 | 2020-12-08 | 安徽大学 | Split type liquid cooling casing of spherical motor |
| CN110138133A (en) * | 2019-06-14 | 2019-08-16 | 安徽大学 | A kind of split type liquid cooling casing of spherical motor |
| CN111490312B (en) * | 2020-06-28 | 2020-09-29 | 四川大学 | Integrated radiator based on diffusion welding technology for power battery pack |
| CN111490312A (en) * | 2020-06-28 | 2020-08-04 | 四川大学 | Integrated radiator based on diffusion welding technology for power battery pack |
| CN112117512A (en) * | 2020-08-25 | 2020-12-22 | 江苏科技大学 | New energy automobile lithium battery thermal management system based on liquid medium |
| CN112117512B (en) * | 2020-08-25 | 2022-02-11 | 江苏科技大学 | New energy automobile lithium battery thermal management system based on liquid medium |
| CN114322908A (en) * | 2021-12-20 | 2022-04-12 | 飞荣达科技(江苏)有限公司 | Liquid cooling plate flatness measuring tool and using method |
| CN114322908B (en) * | 2021-12-20 | 2024-05-03 | 飞荣达科技(江苏)有限公司 | Liquid cooling plate flatness measurement tool and use method |
| CN115000602A (en) * | 2022-07-13 | 2022-09-02 | 深圳市新鹏翔电子有限公司 | Lithium ion battery and conjuncted lithium cell group |
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| CN103996888B (en) | 2016-11-23 |
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Address after: 230601 Anhui Hefei economic and Technological Development Zone, Xin Xin Road, No. 62 power battery factory Patentee after: Huating (Hefei) Power Technology Co., Ltd. Address before: 230601 Hefei 26 economic and Technological Development Zone, Anhui. Patentee before: Huating (Hefei) Power Technology Co., Ltd. |