CN109830779A - A kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats - Google Patents
A kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats Download PDFInfo
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- CN109830779A CN109830779A CN201910138357.9A CN201910138357A CN109830779A CN 109830779 A CN109830779 A CN 109830779A CN 201910138357 A CN201910138357 A CN 201910138357A CN 109830779 A CN109830779 A CN 109830779A
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- battery
- cooling
- proportioning valve
- water
- battery cell
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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
Abstract
The invention discloses a kind of battery thermal management systems for realizing that battery cell equilibrium is cooling or heats of accessory battery technical field, including water tank and four batteries, the inside of the water tank is separately installed with thermocouple and radiator, the left and right sides wall of the water tank is mounted on water-main, two output ports of proportioning valve described in middle and upper part and middle and lower part are socketed with cooling water pipe, the cooling water pipe is annularly wire-wrapped in the outer wall of four batteries respectively, the outer wall of the battery is equipped with temperature sensor, by the multiple cooling water pipes and proportioning valve installed on device and its between electrical connection, realize the intelligent temperature control to battery, have both heating and refrigerating function, realize the balanced temperature control to battery cell, and preferential cooling or heating is realized to the higher or lower monomer of temperature, it can greatly lifting system be cooling or heating efficiency, It ensures battery cell consistency, extends battery.
Description
Technical field
The present invention relates to battery technology field, specially a kind of battery thermal for realizing that battery cell equilibrium is cooling or heats
Reason system.
Background technique
Battery, which refers to, fills electrolyte solution and metal electrode to generate the cup of electric current, slot or other containers or clad vessel
Chemical energy can be converted to the device of electric energy by segment space.Point with anode, cathode.With the development of science and technology battery refers to
The midget plant that can be produced electricl energy.Such as solar battery.The performance parameter of battery mainly has electromotive force, capacity, specific energy and electricity
Resistance.Energy source is utilized the battery as, it is available that there is burning voltage, stabling current, long-time stable power supply, by extraneous shadow
The electric current of very little is rung, and battery structure is simple, easy to carry, charge and discharge are easy to operation, not by outside climatic and temperature
Influence, stable and reliable for performance, the performance of various aspects in modern society's life has great role.
With the development of battery technology, the capacity of battery cell is increasing, integrated higher and higher, corresponding monomer
Cost is also higher, and the harm that when damage generates also becomes larger.The problem of efficiency is considered when battery uses, it is inappropriate to use appearance
So that battery is generated heat, cell damage may finally be made, and when colder place uses battery, under power conversion efficiency
Drop, existing battery water cooling cooling system are that cooling water pipe is arranged in mould group bottom, and the cooling of battery is realized using heat exchange,
Cooling effect is undesirable, be unfavorable for using.
Currently used battery cooling technology means are predominantly air-cooled, two class of water cooling, and current air-cooled technology is actually being answered
With in the process, without special Duct design, the flow field that cold wind enters inside battery is unable to control and predicts, cannot achieve all lists
The equilibrium of body is cooling, and practical cooling effect is bad, when crossing incident heat generation, can not effectively realize the temperature control of battery.
Similar water-cooling system also only on the basis of existing cell p ack, the bottom cell p ack or around arrange
Water cooling pipeline realizes heat exchange in conjunction with cooling fin, similarly there are monomer cooling effect difference, the feelings of whole cooling effect difference
Condition can not effectively realize the temperature control of battery when crossing incident heat generation.
Summary of the invention
Realize that battery cell equilibrium is cooling or the battery thermal management system of heating the purpose of the present invention is to provide a kind of, with
It solves the problems, such as mentioned above in the background art to control the surface temperature of battery.
To achieve the above object, the invention provides the following technical scheme: a kind of realization battery cell equilibrium cooling or heating
Battery thermal management system, including water tank and four batteries, the inside of the water tank is separately installed with thermocouple and radiator, institute
The left and right sides wall for stating water tank is mounted on water-main, and the other end of the left side water-main is equipped with water pump, the water pump
The other end is equipped with proportioning valve by water-main, two output ports of the middle part proportioning valve respectively with middle and upper part and middle and lower part
The input port of the proportioning valve connects, and two output ports of proportioning valve described in middle and upper part and middle and lower part are socketed with cooling water
Pipe, the cooling water pipe are annularly wire-wrapped in the outer wall of four batteries respectively, and the outer wall of the battery is equipped with temperature sensor,
The other end of the two neighboring cooling water pipe in left and right is connect with two output ports of the top and bottom proportioning valve respectively,
The input port of the top and bottom proportioning valve is mounted on distributive pipe, the other end of two distributive pipes with right side institute
Two output ports connection of proportioning valve is stated, the input port of the right side proportioning valve is connect with the right side water-main, described
Temperature sensor, thermocouple, radiator, proportioning valve and water pump are electrically connected with external controller.
Preferably, heat-conducting layer is filled between the cooling water pipe and battery.
Preferably, connection type is to be connected in parallel between the cooling water pipe of four battery outer wall solderless wrapped connections.
Preferably, the heat-conducting layer is thermal grease layer.
Preferably, the wrapping system between the cooling water pipe and battery is spiral solderless wrapped connection.
Compared with prior art, the beneficial effects of the present invention are: by a kind of the realizations battery cell equilibrium it is cooling or plus
The setting of the battery thermal management system of heat, it is reasonable in design, in the equal spiral solderless wrapped connection cooling water pipe of the outer wall of four batteries, cold
But fill heat-conducting layer between water pipe and battery, the output end and input terminal of two adjacent cooling water pipes of left and right respectively with top and
Two output ends of the proportioning valve of bottom are attached, the ratio that the input terminal of the proportioning valve of middle and upper part and middle and lower part passes through middle part
The output end of valve is attached, while the input terminal of the proportioning valve at middle part being connect by water-main with water pump, water pump it is another
End is connect by water-main with water tank, and the input terminal of the proportioning valve of the water-main other end and right side of water tank right side wall installation connects
It connects, two output ends of the proportioning valve on right side are connect with the input terminal of the proportioning valve of top and bottom respectively, to make device
Be connected in parallel, at the same by peripheral control unit control the temperature sensor of battery outer wall installation, the thermocouple in water tank and
The water pump installed on radiator, water-main and the proportioning valve of each position installation, when monomer works normally, the ratio of each position
Example valve works in middle position, ensures that the flow of the cooling water of all battery cells is identical, cooling effect is identical, passes through stickup
Temperature sensor detection on battery cell outer wall, when temperature sensor detects some battery cell temperature anomaly, needs
It is individually cooled down, information is will test and is transferred to external controller, controller adjusts proportioning valve, guides more in pipeline
Water by the cooling water pipe of the monomer, realize the preferential cooling of the monomer, intelligent temperature control carried out to battery, while passing through water tank
The thermocouple and radiator of inside installation, thermocouple heats the liquid in water tank, radiator to the liquid in water tank into
Row cooling, makes device have both heating and refrigerating function, realizes the balanced temperature control to battery cell, and higher or lower to temperature
Monomer realizes preferential cooling or heating, can greatly lifting system is cooling or heating efficiency, ensure battery cell consistency, prolong
Long battery.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is heat-conducting silicone grease structural schematic diagram of the present invention；
Fig. 3 is present system structural schematic diagram.
In figure: 1 battery, 2 cooling water pipes, 3 proportioning valves, 4 water tanks, 5 water pumps, 6 thermocouples, 7 temperature sensors, 8 radiators,
9 heat-conducting layers, 10 distributive pipes, 11 water-mains.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The invention provides the following technical scheme: a kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats
System is designed for battery thermal management system, realizes intelligent temperature control, has both heating and refrigerating function, is realized to the equal of battery cell
Weighing apparatus temperature control, and preferential cooling or heating is realized to the higher or lower monomer of temperature, referring to Fig. 1, including water tank 4 and four electricity
Pond 1, the inside of water tank 4 are separately installed with thermocouple 6 and radiator 8, and the liquid in water tank 4 is heated in the starting of thermocouple 6,
The starting of radiator 8 cools down to the liquid in water tank 4, and the left and right sides wall of water tank 4 is mounted on water-main 11, is used for water tank
The input and output of liquid, the other end of left side water-main 11 are equipped with water pump 5 in 4, for the circulation of accelerating liquid, water pump 5
The other end proportioning valve 3 is equipped with by water-main 11, the uninterrupted of two output ends for controlling proportioning valve 3, middle part
Two output ports of proportioning valve 3 are connect with the input port of middle and upper part and middle and lower part proportioning valve 3 respectively, middle and upper part and middle and lower part
Two output ports of proportioning valve 3 are socketed with cooling water pipe 2, for by the liquid transporting in water-main 11 to multiple cooling waters
In pipe 2, the other end of the two neighboring cooling water pipe 2 in left and right is connect with two output ports of top and bottom proportioning valve 3 respectively,
For the circulation of 2 internal liquid of cooling water pipe, thus realize the purpose that temperature is constant in cooling water pipe 2, top and bottom ratio
The input port of valve 3 is mounted on distributive pipe 10, the other end of two distributive pipes 10 with two output ends of right side proportioning valve 3
Mouth connection, the input port of right side proportioning valve 3 are connect with right side water-main 11, and circulating liquid is injected into right side out of distributive pipe 10
Water-main 11 in, the water of realization device entirety recycles, referring to Fig. 2, cooling water pipe 2 is annularly wire-wrapped in four batteries respectively
1 outer wall, the wrapping system between cooling water pipe 2 and battery 1 is spiral solderless wrapped connection, receive each position of 1 outer wall of battery can
The temperature feedback generated to cooling water pipe 2, so that the temperature for generating cooling water pipe 2 quickly passes through heat-conducting layer 9 and electricity
1 outer wall of pond uniformly contacts, between cooling water pipe 2 and battery 1 be filled with heat-conducting layer 9, heat-conducting layer 9 be thermal grease layer, four
Connection type is to be connected in parallel between the cooling water pipe 2 of 1 outer wall solderless wrapped connection of battery, and the liquid in single water tank 4 is allow to pass through list
A circulation line carries out liquid circulation to multiple cooling water pipes 2, and the outer wall of battery 1 is equipped with temperature sensor 7, temperature sensor
7 for detecting the temperature of 1 monomer of battery and transferring information in external controller, referring to Fig. 3, temperature sensor 7, heat
Galvanic couple 6, radiator 8, proportioning valve 3 and water pump 5 are electrically connected with external controller, and controller is used for based on STM32 chip
To the control device that 1 temperature of battery is changed, external controller is to temperature sensor 7, thermocouple 6, radiator 8, proportioning valve 3
It is controlled with water pump 5, intelligent temperature control, while thermocouple 6 and radiator 8 by installing inside water tank 4 is carried out to battery 1,
Thermocouple 6 heats the liquid in water tank 4, and radiator 8 cools down to the liquid in water tank 4, and device is made to have both heating
And refrigerating function, realize the balanced temperature control to 1 monomer of battery, and realize preferential cooling to the higher or lower monomer of temperature or add
Heat, can greatly lifting system is cooling or heating efficiency, ensure 1 monomer consistency of battery, extend 1 service life of battery.
In the specific use process, in the equal spiral solderless wrapped connection cooling water pipe 2 of the outer wall of four batteries 1, in cooling water pipe 2 and electricity
Between pond 1 fill heat-conducting layer 9, the output end and input terminal of two adjacent cooling water pipes 2 of left and right respectively with top and bottom
Two output ends of proportioning valve 3 are attached, and the input terminal of the proportioning valve 3 of middle and upper part and middle and lower part passes through the proportioning valve 3 at middle part
Output end be attached, while the input terminal of the proportioning valve at middle part 3 being connect by water-main 11 with water pump 5, water pump 5 it is another
One end is connect by water-main 11 with water tank 4, the proportioning valve 3 of 11 other end of water-main and right side of 4 right side wall of water tank installation
Input terminal connection, two output ends of the proportioning valve 3 on right side are connect with the input terminal of the proportioning valve 3 of top and bottom respectively,
To make device be connected in parallel, while temperature sensor 7, the water tank 4 that 1 outer wall of battery is installed are controlled by peripheral control unit
The water pump 5 installed on interior thermocouple 6 and radiator 8, water-main 11 and the proportioning valve 3 of each position installation, when monomer is normal
When work, controller controls the unlatching of water pump 5, and the thermocouple 6 in water tank 4 and radiator 8 are in standby at this time, Ge Gewei
The proportioning valve 3 set works in middle position, ensures that the flow of the cooling water of all 1 monomers of battery is identical, and cooling effect is identical,
Temperature anomaly detection is carried out to battery 1 by the temperature sensor 7 being pasted on 1 monomer outer wall of battery, temperature sensor 7 detects
When to some 1 monomer temperature exception of battery, needs individually to cool down it, will test information and be transferred to external controller,
Controller adjusts proportioning valve 3, guides water more in water-main 11 to pass through the cooling water pipe 2 of the monomer, realizes the excellent of the monomer
It first cools down, intelligent temperature control, while thermocouple 6 and radiator 8 by installing inside water tank 4 is carried out to battery 1, thermocouple 6 is right
Liquid in water tank 4 is heated, and radiator 8 cools down to the liquid in water tank 4, and device is made to have both heating and cooling function
Can, realize the balanced temperature control to 1 monomer of battery, and preferential cooling or heating is realized to the higher or lower monomer of temperature, it can
Great lifting system is cooling or heating efficiency, guarantee 1 monomer consistency of battery extend 1 service life of battery.
Preferentially cooling realization process is as follows:
1) in normal cooling procedure, according to the setting of cooling system, cooling flow N, 3 aperture of proportioning valve is K, cooling
System keeps coolant pressure, and system establishes the relationship between flow and aperture:
N=fK ... ... ... ... ... ... ... 1
2) temperature gap between system detection overtemperature monomer and other monomers determines preferential cooling flow according to difference,
The corresponding preferential cooling flow of the different temperature difference is different, for example corresponding preferential cooling flow is N Δ 1 under the Δ T1 temperature difference, with such
It pushes away.
3) after system determines temperature difference T Δ, the quantity N Δ of preferential cooling flow has also been determined that, the source of Δ N is that other are cold
But the reduction in tributary, if there is n monomer, then the flow reduction amount in other tributaries is N Δ/(n-1), controller passes through, and leads to
Formula 1 is crossed, the valve opening K of present branch is calculatedBranch target, change and be
fKBranch target=NCurrently-ΔN/(n-1)……………………………………2
Similarly preferentially 3 aperture of proportioning valve of cooling route is also calculated according to above-mentioned formula are as follows:
fKPriority target=NCurrently+ΔN…………………………………………3
4) calculated result is fed back to each proportioning valve 3 by control system, is adjusted according to calculated result, to realize that battery 1 is single
The preferential cooling of body.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats, including water tank (4) and four batteries
(1), it is characterised in that: the inside of the water tank (4) is separately installed with thermocouple (6) and radiator (8), the water tank (4)
Left and right sides wall is mounted on water-main (11), and the other end of the left side water-main (11) is equipped with water pump (5), the water pump
(5) the other end is equipped with proportioning valve (3) by water-main (11), two output ports difference of the middle part proportioning valve (3)
It is connect with the input port of proportioning valve described in middle and upper part and middle and lower part (3), two of proportioning valve described in middle and upper part and middle and lower part (3)
Output port is socketed with cooling water pipe (2), and the cooling water pipe (2) is annularly wire-wrapped in the outer wall of four batteries (1) respectively,
The outer wall of the battery (1) is equipped with temperature sensor (7), the other end difference of the two neighboring cooling water pipe (2) in left and right
It is connect with two output ports of the top and bottom proportioning valve (3), the input port of the top and bottom proportioning valve (3)
It is mounted on distributive pipe (10), the other end of two distributive pipes (10) is exported with two of the right side proportioning valve (3)
Port connection, the input port of the right side proportioning valve (3) are connect with the right side water-main (11), the temperature sensor
(7), thermocouple (6), radiator (8), proportioning valve (3) and water pump (5) are electrically connected with external controller.
2. a kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats according to claim 1, special
Sign is: being filled with heat-conducting layer (9) between the cooling water pipe (2) and battery (1).
3. a kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats according to claim 1, special
Sign is: connection type is to be connected in parallel between the cooling water pipe (2) of four battery (1) outer wall solderless wrapped connections.
4. a kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats according to claim 2, special
Sign is: the heat-conducting layer (9) is thermal grease layer.
5. a kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats according to claim 1, special
Sign is: the wrapping system between the cooling water pipe (2) and battery (1) is spiral solderless wrapped connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910138357.9A CN109830779A (en) | 2019-02-25 | 2019-02-25 | A kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138357.9A CN109830779A (en) | 2019-02-25 | 2019-02-25 | A kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats |
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| CN109830779A true CN109830779A (en) | 2019-05-31 |
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| CN201910138357.9A Pending CN109830779A (en) | 2019-02-25 | 2019-02-25 | A kind of battery thermal management system for realizing that battery cell equilibrium is cooling or heats |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113280555A (en) * | 2021-04-13 | 2021-08-20 | 华电电力科学研究院有限公司 | Cooling water system of thermal power plant and cooling water adjusting method |
| CN113793999A (en) * | 2021-08-24 | 2021-12-14 | 国网福建省电力有限公司 | Novel energy storage container thermal management system |
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