CN108539307A - A kind of high power density power battery cooling system - Google Patents
A kind of high power density power battery cooling system Download PDFInfo
- Publication number
- CN108539307A CN108539307A CN201810893492.XA CN201810893492A CN108539307A CN 108539307 A CN108539307 A CN 108539307A CN 201810893492 A CN201810893492 A CN 201810893492A CN 108539307 A CN108539307 A CN 108539307A
- Authority
- CN
- China
- Prior art keywords
- flow channel
- coolant flow
- power battery
- heat dissipation
- high power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
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 inlet communication of any water inlet flow channel and coolant flow channel described at least one, the outlet of any outlet passage and coolant flow channel described 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 either battery cooling technology field or electric vehicle engineering fields, special
It is not related to a kind of high power density power battery cooling system.
Background technology
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 being limited by power battery energy density at this stage
The power density of system, battery pack is still not up to satisfactory degree, and compared with conventional fuel oil car, electric vehicle 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.Continuous increased energy density will certainly make battery in charge and discharge process temperature into
One step increases.In various performance factors to influencing the power battery service life, the influence of battery temperature is very big.Excessively high battery temperature
Inside battery irreversible reaction object can be made to increase, 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 to remaining most important for 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 vehicle, 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
To use the working medium of new battery cooling structure and high heat transfer characteristic.
Invention content
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；Be equipped in the heat dissipation base several water inlet flow channels and
Several outlet passages；The inlet communication of any water inlet flow channel and coolant flow channel described at least one, any outlet passage
With the outlet of coolant flow channel described 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 both 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 water branch and coolant flow channel described at least one, any water outlet branch and at least 1 described in any
The outlet of a coolant flow channel.
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 be mounted on the single body radiating module on, 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 battery list by the way that spiral coolant flow channel is arranged
Body heat dissipation area increases, and improves radiating efficiency, while the temperature of battery top is higher, the design of spiral coolant flow channel makes cooling
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 take away compared with
More heats, makes temperature be evenly distributed along battery axial, ensures to maintain within the scope of reliable temperature when battery cell work.
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 ensures temperature equalization between monomer module.
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, and control valve is accurately controlled 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.
Description of the drawings
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 upward 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 bases；2- power batteries；3- coolant jackets；4- temperature sensors；5- control valves；6- circulating pumps；7- heat exchangers；
8- temperature control units；9- battery packs；10- liquid reserve tanks；31- coolant flow channels；The import of 311- coolant flow channels；312- coolant flow channels
Outlet；The arc-shaped ring cavities of 313-；111- enters the total runner of water；1111- enters water branch；112- is discharged total runner；1121- water outlet branch
Road.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, 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 also be in its surfaces externally and internally inside coolant jacket 3.
As shown in Figure 3 and Figure 4, inside 31 coolant jacket 3 of the coolant flow channel.As shown in figure 5,31 bottom of the coolant flow channel is equipped with import
311 and outlet 312；Import 311 and outlet 312 can be each one, can also design as needed multiple.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 is determined according to the demand of battery pack 9.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, any outlet passage goes out with coolant flow channel described at least one
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 both 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
It is discharged total runner 112 and is equipped with several water outlet branches 1121；Enter water branch 1111 and coolant flow channel described 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 arc-shaped ring cavity 313 above coolant jacket 3, two interconnected runners form double helixs cooling stream
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, in the battery section take away more heat, so that temperature is evenly distributed along battery axial, ensure 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 be mounted on the single body radiating module on, 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 cycle 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 of input
Size.Coolant liquid in liquid reserve tank 10 can be water either 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, close to extend high power
The service life of power battery is spent, electric vehicle cruising ability is increased.
The embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, not
Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace
Or modification all belongs to the scope of protection of the present invention.
Claims (9)
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）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 any water inlet flow channel and coolant flow channel described at least one（311）Connection, it is any
The outlet of the outlet passage and 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 the coolant flow channel
（31）Positioned at the coolant jacket（3）It is internal.
3. high power density power battery cooling system according to claim 1 or 2, which is characterized in that the cooling stream
Road（31）For spiral coolant flow channel.
4. high power density power battery cooling system according to claim 3, which is characterized in that the spiral cooling stream
Road is non-uniform pitch spiral coolant flow channel or uniform pitch spiral coolant flow channel.
5. high power density power battery cooling system according to claim 4, which is characterized in that the non-uniform pitch spiral shell
Revolve the structure that coolant flow channel is upper tightly lower sparse.
6. high power density power battery cooling system according to claim 4 or 5, which is characterized in that the coolant jacket
（3）Two symmetrical spiral coolant flow channels are inside equipped with, by being located at coolant jacket between two spiral coolant flow channels（3）Top
Arc-shaped ring cavity（313）Connection forms double helix coolant flow channel.
7. high power density power battery cooling system according to claim 1, which is characterized in that several monomers dissipate
Thermal modules rectangular array is arranged in heat dissipation base（1）On, the heat dissipation base（1）It is inside equipped with into the total runner of water（111）And water outlet
Total runner（112）, it is described enter the total runner of water（111）Positioned at heat dissipation base（1）Centre, two total runners of water outlet（112）Position
In heat dissipation base（1）Both 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 coolant flow channel described at least one into
Mouthful（311）Connection, any water outlet branch（1121）With the outlet of coolant flow channel described at least one（312）Connection.
8. high power density power battery cooling system according to claim 7, 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）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 connects；The temperature control unit（8）Pass through
The temperature sensor of input（4）Signal controls the control valve（5）Aperture.
9. a kind of electric vehicle, which is characterized in that including high power density power battery, the high power density power electric
Pond is connected according to claims 1 or 2 or 4 or 5 or 7 or 8 any one of them high power density power battery cooling systems.
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 true CN108539307A (en) | 2018-09-14 |
| CN108539307B CN108539307B (en) | 2018-11-16 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599640A (en) * | 2018-11-27 | 2019-04-09 | 南京航空航天大学 | A kind of cylindrical power battery mould group liquid thermal management scheme |
| CN110061325A (en) * | 2019-04-23 | 2019-07-26 | 江苏大学 | A kind of power battery thermal management system based on spiral microchannel liquid cooling pipe |
| CN111055727A (en) * | 2019-12-31 | 2020-04-24 | 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 |
| CN112382804A (en) * | 2020-11-12 | 2021-02-19 | 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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| 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 | Publication date |
|---|---|
| CN108539307B (en) | 2018-11-16 |
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