CN108539307B - A kind of high power density power battery cooling system - Google Patents
A kind of high power density power battery cooling system Download PDFInfo
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- CN108539307B CN108539307B CN201810893492.XA CN201810893492A CN108539307B CN 108539307 B CN108539307 B CN 108539307B CN 201810893492 A CN201810893492 A CN 201810893492A CN 108539307 B CN108539307 B CN 108539307B
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- flow channel
- coolant flow
- heat dissipation
- coolant
- outlet
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The present invention provides a kind of high power density power battery cooling systems, including single body radiating module and heat dissipation base, the single body radiating module includes power battery and coolant jacket, and the power battery is mounted in coolant jacket, and spiral coolant flow channel is equipped in the coolant jacket；The coolant flow channel bottom is equipped with inlet and outlet；Several single body radiating rule modules are arranged on heat dissipation base；Several water inlet flow channels and several outlet passages are equipped in the heat dissipation base；The outlet of coolant flow channel described in the inlet communication of coolant flow channel described in any water inlet flow channel and at least one, any outlet passage and at least one.The present invention may be implemented more fully uniformly to cool down power battery, control battery temperature.
Description
Technical field
The present invention relates to power battery cooling field or battery cooling technology fields or electric vehicle engineering field, special
It is not related to a kind of high power density power battery cooling system.
Background technique
The core of power battery cooling system is how battery integrally to be maintained to a temperature range appropriate, and protect
The temperature demonstrate,proved in battery cell itself and battery pack between battery is uniform.Due to the limit by power battery energy density at this stage
System, the power density of battery pack are still not up to satisfactory degree, and compared with conventional fuel oil car, electric car performance still has difference
Away from mainly by course continuation mileage, the limitation of charging time and battery cycle life.Currently, the technology trends of power battery
For high-energy density and long life cycle.The energy density constantly increased will certainly make battery in charge and discharge process temperature into
One step increases.To in the various performance factors for influencing the power battery service life, the influence of battery temperature is very big.Excessively high battery temperature
Meeting is so that inside battery irreversible reaction object increases, to reduce battery capacity and cycle life.In addition, internal battery pack temperature
It is unevenly distributed that the performance also resulted between each battery cell and battery modules is uneven, and finally influences battery performance
Consistency and the accuracy that battery charge state is estimated.Therefore, battery temperature appropriate and uniform temperature point are maintained
Cloth is most important for maintenance battery cycle life and charge-discharge performance.And high performance battery cooling system will certainly be into
One step increases the volume and weight of battery pack, is unfavorable for the lightweight of electric car, consumes more parasitic powers, further drops
Low course continuation mileage.Therefore, when carrying out power battery cooling system design, it need to consider the compactedness of system and structure, this is just needed
It will be using new battery cooling structure and the working medium of high heat transfer characteristic.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of high power density power battery cooling system,
Realize, control battery temperature more fully cooling to power battery.
The present invention achieves the above technical objects by the following technical means.
A kind of high power density power battery cooling system, including single body radiating module and heat dissipation base, the monomer dissipate
Thermal modules include power battery and coolant jacket, and the power battery is mounted in coolant jacket, and the coolant jacket is equipped with coolant flow channel；
The coolant flow channel bottom is equipped with inlet and outlet；
Several single body radiating rule modules are arranged on heat dissipation base；Several feed water flows are equipped in the heat dissipation base
Road and several outlet passages；The inlet communication of coolant flow channel described in any water inlet flow channel and at least one, any water outlet
The outlet of coolant flow channel described in runner and at least one.
Further, the coolant flow channel is located inside the coolant jacket.
Further, the coolant flow channel is spiral coolant flow channel.
Further, the spiral coolant flow channel is non-uniform pitch spiral coolant flow channel or uniform pitch spiral coolant flow channel.
Further, the non-uniform pitch spiral coolant flow channel is the structure of upper tightly lower sparse.
Further, it is equipped with two symmetrical spiral coolant flow channels in the coolant jacket, leads between two coolant flow channels
The arc-shaped ring cavity connection above coolant jacket is crossed, double helix coolant flow channel is formed.
Further, several single body radiating module rectangular arrays are arranged on heat dissipation base, are set in the heat dissipation base
Have into the total runner of water and be discharged total runner, it is described enter the total runner of water be located among heat dissipation base, two described to be discharged total runner positions
In heat dissipation base two sides, it is described enter the total runner of water be equipped with it is several enter water branch, the total runner of water outlet is equipped with several water outlets
Branch；Enter the inlet communication of coolant flow channel described in water branch and at least one, any water outlet branch and at least 1 described in any
The outlet of a coolant flow channel.
It further, further include heat-exchange system, the heat-exchange system includes temperature sensor, control valve, circulating pump, heat exchange
Device, temperature control unit and liquid reserve tank；The temperature sensor is mounted in the single body radiating module, the heat dissipation base according to
It is secondary to be connect with heat exchanger, liquid reserve tank, circulating pump and control valve closed loop；The temperature that the temperature control unit passes through input
Sensor signal controls the control valve.
A kind of electric vehicle, including high power density power battery, the high power density power battery connect institute
The high power density power battery cooling system stated.
The beneficial effects of the present invention are：
1. high power density power battery cooling system of the present invention realizes electricity by the way that spiral coolant flow channel is arranged
Pond single body radiating area increases, and improves radiating efficiency, while the temperature of battery top is higher, the design of spiral coolant flow channel makes
Coolant liquid finally flows back into pedestal from heat dissipation base to battery top, takes away a large amount of heat of battery top, in the battery section band
More heat is walked, temperature is made to be evenly distributed along battery axial, guarantees to maintain reliable temperature range when battery cell work
It is interior.
2. high power density power battery cooling system of the present invention, by be arranged upper tightly lower sparse non-uniform pitch or
The helical flow path form of person's uniform pitch then uses the non-uniform pitch runner of upper tightly lower sparse, causes to push up when battery top temperature is excessively high
Portion's temperature declines more, and making battery temperature, axially distribution is more uniform.
3. high power density power battery cooling system of the present invention enters the total runner of water by one and draws each
Road guarantees temperature equalization between loose pattern group.
4. high power density power battery cooling system of the present invention is realized by temperature sensor to power electric
The temperature in pond monitors in real time, accurately controls control valve according to the temperature that temperature sensor detects by temperature control unit
Aperture, to control the flow of coolant liquid or the heat exchange amount of coolant liquid.
Detailed description of the invention
Fig. 1 is high power density power battery cooling system structure three-dimensional figure of the present invention.
Fig. 2 is heat dissipation base inner flow passage structure chart of the present invention.
Fig. 3 is non-uniform pitch spiral coolant flow channel schematic diagram of the present invention.
Fig. 4 is uniform pitch spiral coolant flow channel schematic diagram of the present invention.
Fig. 5 is coolant jacket bottom view of the present invention.
Fig. 6 is high power density power battery cooling system schematic diagram of the present invention.
In figure：
1- heat dissipation base；2- power battery；3- coolant jacket；4- temperature sensor；5- control valve；6- circulating pump；7- is changed
Hot device；8- temperature control unit；9- battery pack；10- liquid reserve tank；31- coolant flow channel；The import of 311- coolant flow channel；312- is cold
But the outlet of runner；The arc-shaped ring cavity of 313-；111- enters the total runner of water；1111- enters water branch；112- is discharged total runner；1121-
It is discharged branch.
Specific embodiment
Present invention will be further explained with reference to the attached drawings and specific examples, but protection scope of the present invention is simultaneously
It is without being limited thereto.
As shown in Figure 1, high power density power battery cooling system of the present invention, including single body radiating module and dissipate
Hot pedestal 1, the single body radiating module include power battery 2 and coolant jacket 3, and the power battery 2 is mounted in coolant jacket 3,
The coolant jacket 3 is equipped with coolant flow channel 31, and the coolant flow channel 31 can be inside coolant jacket 3 or in its surfaces externally and internally.
As shown in Figure 3 and Figure 4, inside 31 coolant jacket 3 of coolant flow channel.As shown in figure 5,31 bottom of coolant flow channel is equipped with import
311 and outlet 312；Import 311 and outlet 312 can be each one, and it is multiple also to can according to need design.Several monomers
Radiating module regular array forms battery pack 9, and several single body radiating modules can be arranged with rectangular array can also be round point
Cloth can also symmetrical or asymmetric distribution, this be according to the demand of battery pack 9 determine.Due to general power battery
2 be cylinder, so coolant jacket 3 is tubular；If power battery 2 is rectangle, coolant jacket 3 is square-tube-shaped.Battery pack 9 is installed
On heat dissipation base 1, several water inlet flow channels and several outlet passages are equipped in the heat dissipation base 1；Any water inlet flow channel
It is connected to the import 311 of coolant flow channel described at least one, coolant flow channel described in any outlet passage and at least one goes out
Mouth 312 is connected to.
As shown in Fig. 2, several single body radiating module rectangular arrays are arranged on heat dissipation base 1, the heat dissipation base 1
Inside be equipped with into the total runner of water 111 and be discharged total runner 112, it is described enter the total runner 111 of water be located among heat dissipation base 1, two institutes
State the total runner 112 of water outlet and be located at 1 two sides of heat dissipation base, it is described enter the total runner 111 of water equipped with it is several enter water branch 1111, it is described
Total runner 112 is discharged equipped with several water outlet branches 1121；Enter coolant flow channel described in water branch 1111 and at least one described in any
Import 311 be connected to, any water outlet branch 1121 is connected to the outlet 312 of coolant flow channel described at least one.It is described enter water
Branch 1111 is intervally arranged with water outlet branch 1121.
As shown in Figure 3 and Figure 4, the coolant flow channel 31 is screw type.The coolant flow channel 31 is that non-uniform pitch spiral is cold
But runner or uniform pitch spiral coolant flow channel.The non-uniform pitch spiral coolant flow channel is the structure of upper tightly lower sparse.Such as Fig. 3 and figure
4 be double helix coolant flow channel, and the coolant jacket 3 is equipped with two symmetrical spiral coolant flow channels, two spiral coolant flow channels
Between be connected to by being located at the arc-shaped ring cavity 313 of the top of coolant jacket 3, two interconnected runners form the cooling stream of double helixs
Road.The increasing of battery cell heat dissipation area may be implemented in this way, improve radiating efficiency, while the temperature of battery top is higher, double spiral shells
The design for revolving coolant flow channel, makes coolant liquid from heat dissipation base to battery top, finally flows back into pedestal, it is a large amount of to take away battery top
Heat, section takes away more heat in the battery, so that temperature is evenly distributed along battery axial, guarantee battery cell work when tie up
It holds within the scope of reliable temperature.
As shown in fig. 6, heat-exchange system includes temperature sensor 4, control valve 5, circulating pump 6, heat exchanger 7, temperature control
Unit 8 and liquid reserve tank 10；The temperature sensor 4 is mounted in the single body radiating module, the heat dissipation base 1 successively with change
Hot device 7, liquid reserve tank 10, circulating pump 6 are connected with 5 closed loop of control valve, are realized circulation of the coolant liquid inside coolant jacket 3, are realized
Cooling to power battery 2.
The temperature control unit 8 controls the aperture of the control valve 5 by 4 signal of the temperature sensor inputted
Size.Coolant liquid in liquid reserve tank 10 can be water or ice water or oil.
A kind of electric vehicle, including high power density power battery, the high power density power battery connect institute
The high power density power battery cooling system stated reduces the temperature of high power density power battery, so that it is close to extend high power
The service life of power battery is spent, electric vehicle cruising ability is increased.
The embodiment is a preferred embodiment of the present invention, but present invention is not limited to the embodiments described above, not
In the case where substantive content of the invention, any conspicuous improvement that those skilled in the art can make, replacement
Or modification all belongs to the scope of protection of the present invention.
Claims (3)
1. a kind of high power density power battery cooling system, which is characterized in that including single body radiating module and heat dissipation base
（1）, the single body radiating module includes power battery（2）And coolant jacket（3）, the power battery（2）It is mounted on coolant jacket（3）
It is interior, the coolant jacket（3）Equipped with coolant flow channel（31）；The coolant flow channel（31）Bottom is equipped with import（311）The outlet and
（312）；
Several single body radiating rule modules are arranged in heat dissipation base（1）On；The heat dissipation base（1）It is interior to be equipped with several water inlets
Runner and several outlet passages；The import of coolant flow channel described in any water inlet flow channel and at least one（311）Connection, it is any
The outlet of coolant flow channel described in the outlet passage and at least one（312）Connection；
The coolant flow channel（31）For two symmetric helix coolant flow channels, the coolant flow channel（31）Positioned at the coolant jacket（3）
Inside, by being located at coolant jacket between two spiral coolant flow channels（3）The arc-shaped ring cavity of top（313）Connection is formed
Double helix coolant flow channel；The spiral coolant flow channel is non-uniform pitch spiral coolant flow channel or uniform pitch spiral coolant flow channel；Institute
State the structure that non-uniform pitch spiral coolant flow channel is upper tightly lower sparse；Several single body radiating module rectangular arrays are arranged in heat dissipation
Pedestal（1）On, the heat dissipation base（1）It is inside equipped with into the total runner of water（111）With the total runner of water outlet（112）, it is described enter water always flow
Road（111）Positioned at heat dissipation base（1）Centre, two total runners of water outlet（112）Positioned at heat dissipation base（1）Two sides, it is described enter
The total runner of water（111）Be equipped with it is several enter water branch（1111）, the total runner of water outlet（112）It is equipped with several water outlet branches
（1121）；Enter water branch described in any（1111）With the import of coolant flow channel described at least one（311）Connection, it is any it is described go out
Water branch（1121）With the outlet of coolant flow channel described at least one（312）Connection.
2. high power density power battery cooling system according to claim 1, which is characterized in that further include heat exchange system
System, the heat-exchange system includes temperature sensor（4）, control valve（5）, circulating pump（6）, heat exchanger（7）, temperature control unit
（8）And liquid reserve tank（10）；The temperature sensor（4）It is mounted in the single body radiating module, the heat dissipation base（1）Successively
With heat exchanger（7）, liquid reserve tank（10）, circulating pump（6）And control valve（5）Closed loop connection；The temperature control unit（8）Pass through
The temperature sensor of input（4）Signal controls the control valve（5）Aperture.
3. a kind of electric vehicle, which is characterized in that including the described in any item high power density power electrics of claim 1-2
Pond cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810893492.XA CN108539307B (en) | 2018-08-08 | 2018-08-08 | A kind of high power density power battery cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810893492.XA CN108539307B (en) | 2018-08-08 | 2018-08-08 | A kind of high power density power battery cooling system |
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| CN108539307A CN108539307A (en) | 2018-09-14 |
| CN108539307B true CN108539307B (en) | 2018-11-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599640B (en) * | 2018-11-27 | 2021-11-05 | 南京航空航天大学 | Liquid heat management scheme for cylindrical power battery module |
| CN110061325B (en) * | 2019-04-23 | 2021-09-10 | 江苏大学 | Power battery thermal management system based on spiral microchannel liquid cooling pipe |
| CN111055727B (en) * | 2019-12-31 | 2022-06-28 | 奇瑞新能源汽车股份有限公司 | Control method and device of thermal management system of vehicle and vehicle |
| CN112382804B (en) * | 2020-11-12 | 2022-03-04 | 重庆水利电力职业技术学院 | Power battery cooling structure and power battery thermal management system |
| CN116960518A (en) * | 2023-09-21 | 2023-10-27 | 吉林大学 | Overheat chain decomposition reaction inhibition system and method for lithium battery pack of electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088123B (en) * | 2010-12-27 | 2012-12-05 | 高宾 | Power battery pack with cooling system |
| CN202053416U (en) * | 2011-05-19 | 2011-11-30 | 大连日进精密模塑有限公司 | Double-helix cooling water channel structure |
| CN102689586A (en) * | 2012-05-31 | 2012-09-26 | 北京汽车新能源汽车有限公司 | Integral temperature control system for electric automobile |
| JP2014194906A (en) * | 2013-03-29 | 2014-10-09 | Fuji Heavy Ind Ltd | Cooling structure of battery module and cooling structure of battery pack |
| CN205231212U (en) * | 2015-12-29 | 2016-05-11 | 惠州市亿能电子有限公司 | Power battery heat transfer unit (HTU) |
| DE102016102139A1 (en) * | 2016-02-08 | 2017-08-10 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for producing a vehicle component and vehicle component |
| CN106653521A (en) * | 2016-12-21 | 2017-05-10 | 广东威特真空电子制造有限公司 | Magnetron |
| CN206444231U (en) * | 2017-01-06 | 2017-08-29 | 焦作健康元生物制品有限公司 | It is a kind of to improve the agitating device of heat exchange efficiency in crystallizing tank |
| CN108365294A (en) * | 2018-03-06 | 2018-08-03 | 贵安新区新特电动汽车工业有限公司 | Battery pack and its heat management control method |
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