CN107946694B - A kind of power battery cooling system and its cooling means - Google Patents
A kind of power battery cooling system and its cooling means Download PDFInfo
- Publication number
- CN107946694B CN107946694B CN201711400245.3A CN201711400245A CN107946694B CN 107946694 B CN107946694 B CN 107946694B CN 201711400245 A CN201711400245 A CN 201711400245A CN 107946694 B CN107946694 B CN 107946694B
- Authority
- CN
- China
- Prior art keywords
- water channel
- cooling
- battery
- power battery
- microcirculation
- Prior art date
- 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
-
- 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
- H01M10/60—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
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- 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
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- 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 power battery cooling system, the battery includes multiple battery cores, the battery core in Battery case be in matrix form arrange, the cooling system includes water pump, water channel, radiator, the water pump is set in the water channel, the radiator and the water channel connection, the water channel includes external water channel and ring battery core water channel, the ring battery core water channel is set to around the battery core, the external water channel includes major cycle water channel and microcirculation water channel, by the way that two sets of water channels are arranged, cyclic water channel can be chosen according to demand, energy consumption is effectively reduced, and pass through the cooling equipment of setting phase-change material, further ensure the temperature stability and consistency of battery core.
Description
Technical field
The present invention relates to battery cooling systems, and in particular to the water cooling system of automobile power battery and its cooling side
Method.
Background technique
With becoming increasingly conspicuous for environmental problem, the development of new-energy automobile is also to be getting faster, as new-energy automobile
The development prospect of core component, Vehicular dynamic battery is more and more wide, while being badly in need of the fast development of battery thermal management system, moves
The operating temperature of power battery is too high or too low all to reduce its efficiency for charge-discharge and whole service life, and power train in vehicle application electricity
Pond monomer temperature is unevenly easy to cause the rapid decay of battery bulk life time, thus, battery is not only controlled in reasonable temperature
Work in range, while the consistency of each battery cell temperature inside battery pack is kept, it is at optimum temperature range
And there is high working efficiency, while improving the reliability of battery and extending its service life, existing battery cooling system is mostly wind
It is cold, two kinds of water cooling, air cooling system is highly-safe, at low cost, but its heat dissipation effect is poor, especially the temperature between single battery
Degree difference it is more obvious, although and water-cooling system good heat dissipation effect, its structure is complicated and energy consumption is higher, thus, affect
The charge discharge life and charging and discharging capabilities of battery entirety, are unfavorable for the development of new-energy automobile.
Summary of the invention
The technical problem to be solved by the present invention is to radiate bad problem for above-mentioned new-energy automobile power battery, propose
A kind of power battery cooling system, the battery include multiple battery cores, the battery core in being in that matrix form arranges in Battery case,
The cooling system includes water pump, water channel, radiator, and the water pump is set in the water channel, the radiator and the water
Road connection, the water channel include external water channel and ring battery core water channel, and the ring battery core water channel is set to around the battery core, described
External water channel includes major cycle water channel and microcirculation water channel, by the way that two sets of water channels are arranged, can choose cyclic water channel according to demand,
Energy consumption is effectively reduced, and by the cooling equipment of setting phase-change material, further ensures the temperature stability and consistency of battery core.
In order to solve the above technical problem, the present invention provides technical solution are as follows:
A kind of power battery cooling system, the battery include multiple battery cores, and the battery core is in being in matrix in Battery case
Form arrangement, the cooling system includes water pump, water channel, radiator, and the water pump is set in the water channel, the radiator
It is connected to the water channel, the water channel includes external water channel and ring battery core water channel, and the ring battery core water channel is set to the battery core
Around.
The external water channel includes major cycle water channel and microcirculation water channel, is followed respectively to constitute the master of the cooling system
Ring cooling circuit and microcirculation cooling circuit, the major cycle cooling circuit include major cycle water channel, ring battery core water channel, described dissipate
Hot device, the microcirculation cooling circuit include microcirculation water channel, ring battery core water channel, and it is cooling that the water pump is set to the major cycle
On the common water channel of circuit and the microcirculation cooling circuit.
Valve is set on the common water channel of the major cycle cooling circuit and the microcirculation cooling circuit, to switch
Major cycle cooling circuit and the microcirculation cooling circuit are stated, the valve is solenoid valve, and the valve is three-way valve.
The cooling system further includes the cooling equipment of phase-change material, and the cooling equipment of the phase-change material is set to the battery core
Around.
A kind of power battery cooling means, the cooling means be based on above-mentioned power battery cooling system, it is described dynamic
When power start battery, the water pump does not start, and the optimal work of the power battery is maintained by the cooling equipment of the phase-change material
Temperature.
When the temperature of powered cell rises to a certain particular value t1, starts the water pump and switch the valve opening institute
Microcirculation cooling circuit is stated, is radiated by the microcirculation cooling circuit to the power battery.
When the temperature of powered cell rises to a certain particular value t2, starts the water pump and switch the valve opening institute
Major cycle cooling circuit is stated, is radiated by the major cycle cooling circuit to the power battery.
The invention has the benefit that
1. power battery cooling system of the present invention is used, by the way that major cycle cooling circuit and microcirculation cooling circuit is arranged,
One of circuit is opened according to the demand of power battery, the heat dissipation effect of power battery can either be met, also can be reduced water pump
Power consumption, save the energy；
2. using power battery cooling system of the present invention, by the cooling equipment of setting phase-change material, stop in power battery
It is kept the temperature by it to power battery after work, and radiated in the heat exchange of power battery initial start stage to power battery.
Detailed description of the invention
Fig. 1 is power battery cooling system structural schematic diagram of the present invention；
Fig. 2 is power battery cooling system battery-end schematic perspective view of the present invention；
Fig. 3 is the cooling device structure schematic diagram of power battery cooling system phase-change material of the present invention；
Fig. 4 is the cooling equipment cross-sectional view of power battery cooling system phase-change material of the present invention.
Specific embodiment
The invention discloses a kind of power battery cooling system and its cooling means, those skilled in the art can use for reference this
Literary content, is suitably modified realization of process parameters.It is important to note that all similar substitutions and modifications are to art technology
It is it will be apparent that they are considered as being included in the present invention for personnel, and related personnel can obviously not depart from this hair
Content described herein is modified on the basis of bright content, spirit and scope or appropriate changes and combinations, carrys out implementation and application
The technology of the present invention.
In the present invention, unless otherwise stated, Science and Technology noun used herein has art technology
The normally understood meaning of personnel institute.
It is right combined with specific embodiments below in order to make those skilled in the art more fully understand technical solution of the present invention
The present invention is described in further detail.
The power battery of one of core component as new-energy automobile, since its operating environment requirements is higher, especially
Temperature requirement, temperature is too low to will lead to the reduction of power battery charging and discharging capabilities, and life time decay is also very fast, and temperature is excessively high
Meeting accelerated aging decaying, in some instances it may even be possible to cause safety accident, therefore, power battery is needed in an optimal operating temperature range
Interior, many Vehicular dynamic batteries have also been accomplished to control its operating temperature in a relatively reasonable range at present, however, by
It is all by multiple monomer compositions in power battery, due to position difference between monomer, radiating efficiency is different, also results in its temperature
Degree will appear difference, and the operating temperature difference of single battery also will affect its charging and discharging capabilities, while the unbalanced power of temperature
Battery system will lead to the reduction of overall performance, and accelerate the decaying in its service life, in order to solve this problem, the invention proposes
A kind of power battery cooling system and its cooling means, are specifically described with reference to the drawings the cooling system and cooling means:
Fig. 1 is the structural schematic diagram of power battery cooling system of the present invention, and Fig. 2 is power battery cooling system electricity of the present invention
Pond end schematic perspective view, the battery include multiple battery cores 1, the battery core 1 in being in that matrix form arranges in Battery case,
The cooling system includes water pump 3, water channel, radiator 4, and the water pump 3 is set in the water channel, the radiator 4 and institute
Water channel connection is stated, the water channel includes external water channel and ring battery core water channel 2, and the ring battery core water channel 2 is set to the battery core 1 week
It encloses.
The external water channel includes major cycle water channel 5 and microcirculation water channel 6, respectively to constitute the master of the cooling system
Circulation cooling circuit and microcirculation cooling circuit, the major cycle cooling circuit includes major cycle water channel 5, ring battery core water channel 2, institute
Radiator 4 is stated, the microcirculation cooling circuit includes microcirculation water channel 6, ring battery core water channel 2, and the water pump 3 is set to the master
On the common water channel of circulation cooling circuit and the microcirculation cooling circuit.
Valve 7 is set on the common water channel of the major cycle cooling circuit and the microcirculation cooling circuit, to switch
The major cycle cooling circuit and the microcirculation cooling circuit, the valve 7 is solenoid valve, and the valve 7 is threeway
The shutdown of the conducting of the major cycle cooling circuit, the microcirculation cooling circuit may be implemented in valve, i.e., the described valve 7, or
Person realizes the shutdown of the conducting of the microcirculation cooling circuit, the major cycle cooling circuit.
Fig. 3 is the cooling device structure schematic diagram of power battery cooling system phase-change material of the present invention, and Fig. 4 is power of the present invention
Battery cooling system phase-change material cools down equipment cross-sectional view, and the cooling system further includes the cooling equipment 8 of phase-change material,
The cooling equipment 8 of the phase-change material is set to around the battery core 1, and the cooling equipment 8 of the phase-change material is miniature column capsule
Type structure places the cooling equipment 8 of multiple phase-change materials, the cooling equipment 8 of the phase-change material between the battery core in gap
Including external shell structure 81 and internal cavity structures 82, phase-change material, the outside are filled in the internal cavity structures 82
Shell structure 81 is the high polymerizable material or metal material of thermal conductivity.
Based on above-mentioned power battery cooling system, the present invention gives a kind of power battery cooling means, the cooling
Specifically, when the power battery starts, the water pump 3 does not start method, by the cooling equipment 8 of the phase-change material and the electricity
Core 1 carries out the optimal operating temperature that heat exchange maintains the power battery, special after the power battery stops working for a long time
It is not in the case where winter makes outdoor temperature is low, the temperature of powered cell can decline quickly, if do not heated to it, it will shadow
The working performance to power battery described when starting next time is rung, as the cooling power described in last time of equipment 8 of the phase-change material
It has absorbed more heat transfer after battery work and has liquefied, and stored heat to be after the power battery stops working
The power battery provides heat, ensure that the heat preservation of the power battery after stopping working, and the phase-change material is cold
But equipment 8 also can discharge heat with the offer power battery heat preservation and temperature reduces, and just start work in the power battery
After work, with the rising of its temperature, the heat of the power battery can also be absorbed by the cooling equipment 8 of the phase-change material, thus
The temperature value of the power battery is maintained in short time.
When the temperature of powered cell rises to a certain particular value t1, starts the water pump 3 and switch the valve 7 and open
It opens the microcirculation cooling circuit and turns off the major cycle cooling circuit, give the power electric by the microcirculation cooling circuit
Pond heat dissipation, the solid arrow direction of the microcirculation cooling circuit as shown in figure 1, i.e., the described microcirculation cooling circuit be 1. → 2. →
3. → 4. → 5. → 6. → 7. → 1., it is 7. ring battery core water wherein being 4. the water channel by the cooling equipment 8 of the phase-change material
Road.
When the temperature of powered cell rises to a certain particular value t2 (t2 > t1), start described in the water pump 3 and switching
Valve 7 opens the major cycle cooling circuit and turns off the microcirculation cooling circuit, by the major cycle cooling circuit to institute
Power battery heat dissipation, the dotted arrow direction of the major cycle cooling circuit as shown in figure 1 are stated, i.e., the described microcirculation cooling circuit is
①→⑧→⑨→⑦→①。
The present invention is used by the switching of major cycle cooling circuit and microcirculation cooling circuit, when microcirculation is cooling, institute
Stating water pump 3 intermittent can only operate, and the energy consumption of the water pump 3 be greatly decreased, in the feelings that the power battery working time is not grown
It is cooling just enough using microcirculation under condition, simultaneously as the phase transition temperature of the cooling equipment 8 of the phase-change material is one true
The temperature of fixed value, the coolant liquid around the cooling equipment 8 of the phase-change material is also more constant, and described ring battery core water channel 2 weeks
The consistency for enclosing the temperature of coolant liquid is preferably guaranteed, to improve the temperature consistency of the battery core 1.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of power battery cooling system, the battery includes multiple battery cores, and the battery core is in being in rectangular in Battery case
Formula arrangement, which is characterized in that the cooling system includes water pump, water channel, radiator, and the water pump is set in the water channel,
The radiator is connected to the water channel, and the water channel includes external water channel and ring battery core water channel, the ring battery core water channel setting
Around the battery core, the external water channel includes major cycle water channel and microcirculation water channel, respectively to constitute the cooling system
The major cycle cooling circuit and microcirculation cooling circuit of system, the major cycle cooling circuit includes major cycle water channel, ring battery core water
Road, the radiator, the microcirculation cooling circuit include microcirculation water channel, ring battery core water channel, and the water pump is set to described
On the common water channel of major cycle cooling circuit and the microcirculation cooling circuit, the major cycle cooling circuit and the microcirculation
Valve is set on the common water channel of cooling circuit, to switch the major cycle cooling circuit and the microcirculation cooling circuit.
2. power battery cooling system according to claim 1, which is characterized in that the valve is solenoid valve.
3. power battery cooling system according to claim 2, which is characterized in that the valve is three-way valve.
4. power battery cooling system according to claim 3, which is characterized in that the cooling system further includes phase transformation material
Expect that cooling equipment, the cooling equipment of the phase-change material are set to around the battery core.
5. a kind of power battery cooling means, which is characterized in that the cooling means is based on power electric as claimed in claim 4
Pond cooling system, when the power battery starts, the water pump does not start, and remains described dynamic by the cooling equipment of the phase-change material
The optimal operating temperature of power battery.
6. power battery cooling means according to claim 5, which is characterized in that the temperature of powered cell rises to certain
When one particular value t1, starts the water pump and switch microcirculation cooling circuit described in the valve opening, it is cold by the microcirculation
But circuit is radiated to the power battery.
7. power battery cooling means according to claim 6, which is characterized in that the temperature of powered cell rises to certain
When one particular value t2, starts the water pump and switch major cycle cooling circuit described in the valve opening, it is cold by the major cycle
But circuit is radiated to the power battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400245.3A CN107946694B (en) | 2017-12-22 | 2017-12-22 | A kind of power battery cooling system and its cooling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400245.3A CN107946694B (en) | 2017-12-22 | 2017-12-22 | A kind of power battery cooling system and its cooling means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107946694A CN107946694A (en) | 2018-04-20 |
| CN107946694B true CN107946694B (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711400245.3A Expired - Fee Related CN107946694B (en) | 2017-12-22 | 2017-12-22 | A kind of power battery cooling system and its cooling means |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111162340B (en) * | 2018-11-08 | 2023-04-07 | 吉林大学 | Heat dissipation device and method for power battery for new energy automobile |
| CN116321985B (en) * | 2023-04-07 | 2024-02-27 | 江阴市富仁高科股份有限公司 | Multimedia screen with cooling structure |
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| CN202352797U (en) * | 2011-11-17 | 2012-07-25 | 茵卡动力系统（上海）有限公司 | Water cooling type lithium battery module cooling system |
| JP2013121785A (en) * | 2011-12-12 | 2013-06-20 | Toyota Motor Corp | Cooling system for electronic device, and cooling system for vehicular interior and electronic device |
| CN104842752A (en) * | 2014-01-27 | 2015-08-19 | 利勃海尔交通系统股份有限公司 | Vehicle cooling circuit |
| CN106684490A (en) * | 2015-11-09 | 2017-05-17 | 天津迪沃斯科技有限公司 | Water-cooling heat dissipation apparatus for battery pack of new energy automobile |
| CN106803609A (en) * | 2017-01-17 | 2017-06-06 | 宁波大学 | A kind of new-energy automobile power battery cooling system |
| CN206505962U (en) * | 2017-01-23 | 2017-09-19 | 北京长城华冠汽车技术开发有限公司 | A kind of water-cooled battery structure and batteries of electric automobile |
-
2017
- 2017-12-22 CN CN201711400245.3A patent/CN107946694B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202352797U (en) * | 2011-11-17 | 2012-07-25 | 茵卡动力系统（上海）有限公司 | Water cooling type lithium battery module cooling system |
| JP2013121785A (en) * | 2011-12-12 | 2013-06-20 | Toyota Motor Corp | Cooling system for electronic device, and cooling system for vehicular interior and electronic device |
| CN104842752A (en) * | 2014-01-27 | 2015-08-19 | 利勃海尔交通系统股份有限公司 | Vehicle cooling circuit |
| CN106684490A (en) * | 2015-11-09 | 2017-05-17 | 天津迪沃斯科技有限公司 | Water-cooling heat dissipation apparatus for battery pack of new energy automobile |
| CN106803609A (en) * | 2017-01-17 | 2017-06-06 | 宁波大学 | A kind of new-energy automobile power battery cooling system |
| CN206505962U (en) * | 2017-01-23 | 2017-09-19 | 北京长城华冠汽车技术开发有限公司 | A kind of water-cooled battery structure and batteries of electric automobile |
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| CN107946694A (en) | 2018-04-20 |
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