CN106229574A - Cooling method and system for battery pack - Google Patents
Cooling method and system for battery pack Download PDFInfo
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- CN106229574A CN106229574A CN201610685897.5A CN201610685897A CN106229574A CN 106229574 A CN106229574 A CN 106229574A CN 201610685897 A CN201610685897 A CN 201610685897A CN 106229574 A CN106229574 A CN 106229574A
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- Prior art keywords
- temperature
- battery bag
- coolant
- cooling
- battery
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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
- H01M10/42—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
- H01M10/61—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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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)
- Automation & Control Theory (AREA)
Abstract
The embodiment of the invention provides a cooling method and system for a battery pack. The cooling method of the battery pack provided by the embodiment of the invention comprises the following steps: detecting the temperature of a battery pack, comparing the temperature of the battery pack with a preset temperature threshold, if the temperature of the battery pack is greater than the temperature threshold, determining the target temperature of cooling liquid according to the temperature of the battery pack, and cooling the battery pack by using the cooling liquid with the temperature less than or equal to the target temperature. The cooling method for the battery pack provided by the embodiment of the invention realizes that the target temperature of the cooling liquid required by cooling the battery pack is determined by using the temperature of the battery pack, improves the flexibility of a cooling mode for the battery pack, reduces the consumption of electric energy in the battery pack, improves the rationality of electric energy distribution of the battery pack, and effectively prolongs the service life of the battery pack.
Description
Technical field
The present invention relates to cell art, particularly relate to cooling means and the system of a kind of battery bag.
Background technology
At present, along with the fast development of new forms of energy industry, battery applications field is more extensive, uses the most in the car,
By using electrokinetic cell system to provide electric energy for electric automobile so that electric energy becomes the power resources of electric automobile, reduces not
The use of Renewable resource.
General, battery can produce certain heat when discharge condition, when heat is too high, battery temperature is just exceeded
After the temperature range value often used, battery performance can be made to decline, reduce the cycle life of battery.Thus need battery system
System is lowered the temperature so that it is reach an optimum state.
In prior art, when utilizing water-cooled to lower the temperature battery, the cooling method of employing is simple opening and closing, when opening
When opening cooling function, cooling system is in full-load operation state, i.e. uses the coolant of fixed temperature that battery is carried out water-cooled
Cooling, easily causes energy resource consumption higher, causes energy waste.It is additionally, since the sustainable supply of battery so that battery may utilize
Cycle-index reduce, reduce the service life of battery.
Summary of the invention
The present invention provides cooling means and the system of a kind of battery bag, easy with the cooling method overcoming prior art to use
Cause energy resource consumption higher, cause energy waste, the problem reducing the service life of battery.
The present invention provides the cooling means of a kind of battery bag, including:
The temperature of detection battery bag；
The temperature of described battery bag is compared with the temperature threshold preset, if the temperature of described battery bag is more than described
Temperature threshold, according to the temperature of described battery bag, determines the target temperature of coolant；
Utilize temperature to be less than or equal to the coolant of described target temperature, described battery bag is cooled down.
Further, in said method, the described temperature according to described battery bag, determine the target temperature of coolant, bag
Include: obtain the corresponding relation between temperature and the temperature of coolant of battery bag；
According to the temperature of described battery bag, from described corresponding relation, it is thus achieved that the temperature of corresponding coolant, using as institute
State target temperature.
Further, in said method, the described coolant utilizing temperature to be less than or equal to described target temperature, to institute
State battery bag to cool down, including:
Detect the Current Temperatures of described coolant；
If the Current Temperatures of described coolant is more than the target temperature of described coolant, then described coolant is lowered the temperature
Process, so that the temperature of described coolant is down to described target temperature；
Utilize the described coolant processed through cooling, described battery bag is cooled down.
Further, in said method, the described coolant utilizing temperature to be less than or equal to described target temperature, to institute
State battery bag to cool down, including:
Detect the Current Temperatures of described coolant；
If the Current Temperatures of described coolant is less than or equal to the target temperature of described coolant, utilize described coolant
Described battery bag is cooled down.
Further, in said method, described method also includes:
Detect the Current Temperatures of described coolant；
If the temperature of described battery bag is less than or equal to described temperature threshold, stop the cooling to described battery bag.
The present invention also provides for the cooling system of a kind of battery bag, including sensor, battery monitor system and refrigeration control system
System；
Described sensor, for detecting the temperature of battery bag, and is sent to described electricity by the temperature of the battery bag detected
Pond control system；
Described battery control system, for the temperature of described battery bag detected by described sensor and the temperature preset
Threshold value compares, if the temperature of described battery bag is more than described temperature threshold, according to the temperature of described battery bag, determines cooling
The target temperature of liquid, and described target temperature is sent to described refrigeration control system；
Described refrigeration control system, for utilizing temperature to be less than or equal to the coolant of described target temperature, to described
Battery bag cools down.
Further, in said system, described battery control system, specifically for:
Obtain the corresponding relation between temperature and the temperature of coolant of battery bag；
According to the temperature of described battery bag, from described corresponding relation, it is thus achieved that the temperature of corresponding coolant, using as institute
State target temperature.
Further, in said system, described refrigeration control system, specifically for:
Detect the Current Temperatures of described coolant；
If the Current Temperatures of described coolant is more than the target temperature of described coolant, described coolant is carried out at cooling
Reason, so that the temperature of described coolant is down to described target temperature；
Utilize the described coolant processed through cooling, described battery bag is cooled down.
Further, in said system, described refrigeration control system, specifically for:
Detect the Current Temperatures of described coolant；
If the Current Temperatures of described coolant is less than or equal to the target temperature of described coolant, utilize described coolant
Described battery bag is cooled down.
Further, in said system, described battery control system, it is additionally operable to:
The temperature of the described battery bag detected by described sensor compares with the temperature threshold preset, if described electricity
The temperature of Chi Bao is less than or equal to described temperature threshold, triggers described refrigeration control system and stops cold to described battery bag
But.
The cooling means of the battery bag that the embodiment of the present invention is provided and system, the temperature of the battery bag by detecting
With default temperature threshold be compared to determine battery bag the need of cooling, if the temperature of battery bag is more than temperature threshold,
Then need battery bag is cooled down, and determine the target temperature of coolant according to the temperature of battery bag, then utilize temperature little
In or equal to the coolant of target temperature, battery bag is cooled down, the cooling means of the battery bag that the embodiment of the present invention provides
In, determine the target temperature of coolant required for battery bag is lowered the temperature according to the temperature of battery bag, and then according to target temperature
Degree, carries out cooling process to battery bag, it is achieved that use the temperature of coolant to adjust during to cooling, it is to avoid in prior art when
When opening cooling function, use the coolant of fixed temperature the to carry out battery energy resource consumption that water-cooled cooling causes of cooling system is relatively
Height, the problem of the energy waste caused, there is higher motility, reduce energy resource consumption, it is to avoid energy waste, improve
The reasonability of battery bag electric energy distribution, the effective service life extending battery bag.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is this
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to root
Other accompanying drawing is obtained according to these accompanying drawings.
The schematic flow sheet of the cooling means of the battery bag that Fig. 1 is provided by the embodiment of the present invention；
The temperature fall time of the cooling means of the battery bag that Fig. 2 is provided by the embodiment of the present invention closes with the first of battery temperature
System's figure；
The temperature fall time of the cooling means of the battery bag that Fig. 3 is provided by the embodiment of the present invention closes with the second of battery temperature
System's figure；
Another schematic flow sheet of the cooling means of the battery bag that Fig. 4 is provided by the embodiment of the present invention；
First structural representation of the cooling system of the battery bag that Fig. 5 is provided by the embodiment of the present invention；
Second structural representation of the cooling system of the battery bag that Fig. 6 is provided by the embodiment of the present invention.
Reference:
10 battery bags
11 sensors
101 cooling pipes
12 battery control systems
13 refrigeration control systems
131 compressors
132 condensers
133 vaporizers
134 water pumps
135 temperature sensors
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
Embodiment one
The schematic flow sheet of the cooling means of the battery bag that Fig. 1 is provided by the embodiment of the present invention, as it is shown in figure 1, this reality
Execute the cooling means of the battery bag of example, specifically may include steps of:
101, the temperature of battery bag is detected.
Under normal circumstances, battery bag has an optimal temperature range, when the temperature of battery bag is in optimum temperature model
When enclosing, work efficiency is the highest, and is conducive to extending the service life of battery bag, when the temperature of battery bag is not at optimum temperature range
Time, in the environment higher in temperature, it is relatively slow that battery contracts for fixed output quotas that raw heat distributes, and all can affect the performance of battery, therefore, for
The temperature of the battery bag beyond optimum temperature range can be reduced, cooling efficiency can be improved again, water-cooled can be used
Battery bag is lowered the temperature by form.
In embodiments of the present invention, it is provided that the cooling means of a kind of battery bag, can apply coming using electric energy as power
In the automobile in source, by the cooling means of the battery bag in the embodiment of the present invention, it is possible to reduce power consumption so that more electricity
Can apply in miscellaneous part in the car, such as, be used for regulating the air-conditioning of temperature in compartment in the compartment in.
In embodiments of the present invention, first detect the temperature of battery bag, for confirming whether the temperature of battery bag is in
Good temperature, and carry out cooling process the need of to battery bag.
During a concrete implementation, it is possible to use the temperature of temperature sensor detection battery bag.
102, the temperature of battery bag is compared with the temperature threshold preset, if the temperature of battery bag is more than temperature threshold
Value, according to the temperature of battery bag, determines the target temperature of coolant.
Specifically, can using the optimum temperature of battery as temperature threshold, by the temperature of battery bag that will detect with
The temperature threshold preset compares, to determine whether battery bag meets optimum temperature, if the temperature of battery bag is more than temperature threshold
Value, illustrates that the temperature of now battery bag does not meets optimum temperature, needs to cool down battery bag.
Such as, the optimum temperature of battery bag can be 30 DEG C, if the temperature of battery bag is 35 DEG C, and the most now temperature of battery bag
Degree does not meets optimum temperature, needs to cool down battery bag.
Owing to battery bag is cooled down by needs, so first according to the temperature of battery bag, determine one optimal for
Coolant temperature to the cooling of battery bag to the full extent can be with saves energy.
Such as, the temperature fall time of the cooling means of the battery bag that Fig. 2 is provided by the embodiment of the present invention-with battery temperature the
One graph of a relation, the temperature fall time of the cooling means of the battery bag that Fig. 3 is provided by the embodiment of the present invention-close with battery temperature second
System's figure, as in figure 2 it is shown, when the temperature of battery is 50 DEG C, be respectively adopted 20 DEG C, 22 DEG C, 24 DEG C, 26 DEG C, the water difference of 28 DEG C
Battery bag is cooled down, during it can be seen that use the coolant of 22 DEG C that battery bag is lowered the temperature, so that electric
The temperature of Chi Bao is down to about 30 DEG C, i.e. the temperature of battery bag is down to optimum temperature.As it is shown on figure 3, when the temperature of battery is 40
DEG C time, be respectively adopted 20 DEG C, 22 DEG C, 24 DEG C, 26 DEG C, the coolant of 28 DEG C respectively battery bag is cooled down, permissible from figure
Find out, when using the water of 24 DEG C that battery bag is cooled down, so that the temperature of battery bag is down to about 30 DEG C, i.e. battery bag
Temperature be down to optimum temperature.
Wherein, according to the temperature of battery bag, determine the target temperature of coolant, may include that
Obtain the corresponding relation between temperature and the temperature of coolant of battery bag；
According to the temperature of battery bag, from corresponding relation, it is thus achieved that the temperature of corresponding coolant, using as target temperature.
Specifically, in embodiments of the present invention, the corresponding relation between temperature and the temperature of coolant of battery bag is permissible
Obtained by concrete experimental data, because the variations in temperature of battery bag has certain seriality, in embodiments of the present invention
Only enumerate part data as representative.
Below as a example by table 1, the corresponding relation between temperature and the temperature of coolant of battery bag is illustrated,
The battery bag temperature of the cooling means of the battery bag that table 1 is provided by the embodiment of the present invention-with the corresponding table of coolant temperature.
Table 1
As shown in table 1, in table, the first row represents the temperature of battery, and first row represents the temperature of coolant, middle temperature
The temperature that can reach after representing battery cooling, as can be seen from the table, when the temperature of battery is 30 DEG C, use 20 DEG C respectively,
22 DEG C, 24 DEG C, 26 DEG C, it is lowered the temperature, when the temperature of coolant is 28 DEG C, so that the temperature of battery by the coolant of 28 DEG C
Finally reduce to 29.6 DEG C.When the temperature of battery is 35 DEG C, use 20 DEG C, 22 DEG C, 24 DEG C, 26 DEG C, the coolant pair of 28 DEG C respectively
Its cooling, when the temperature of coolant is 26 DEG C, so that the temperature of battery finally reduces to 30 DEG C, by that analogy.By electricity
Corresponding relation between temperature and the temperature of coolant of Chi Bao, determines the optimum temperature that battery bag can be made to cool down, by this
Good temperature is as target temperature.
103, utilize temperature to be less than or equal to the coolant of target temperature, battery bag is cooled down.
The corresponding relation between temperature and the temperature of coolant according to battery bag, it is thus achieved that after corresponding target temperature, right
User detects for the temperature of the coolant that battery bag cools down, if the temperature of the coolant detected is more than target temperature, then
Need the temperature of the coolant for cooling down for battery bag is adjusted so that it is reach target temperature, then, use and adjust
Battery bag is cooled down by the coolant after joint.
Or, if the temperature of the coolant detected is less than or equal to target temperature, then can directly utilize coolant
Battery bag is cooled down.
The cooling means of the battery bag that the embodiment of the present invention is provided, by the temperature of battery bag that will detect with preset
Temperature threshold be compared to determine that battery bag, the need of cooling, if the temperature of battery bag is more than temperature threshold, then needs
Battery bag is cooled down, and determines the target temperature of coolant according to the temperature of battery bag, then utilize temperature to be less than or
Equal to the coolant of target temperature, battery bag is cooled down, in the cooling means of the battery bag that the embodiment of the present invention provides, root
The target temperature of coolant required for battery bag is cooled down is determined according to the temperature of battery bag, and then according to target temperature, right
Battery bag carries out cooling process, it is achieved that use the temperature of coolant to adjust during to cooling, it is to avoid to work as unlatching in prior art
During cooling function, it is higher that cooling system uses the coolant of fixed temperature that battery carries out the energy resource consumption that water-cooled cooling causes, and leads
The problem of energy waste caused, have higher motility, reduce energy resource consumption, it is to avoid energy waste, improves battery
The reasonability of bag electric energy distribution, the effective service life extending battery bag.
Embodiment two
Another schematic flow sheet of the cooling means of the battery bag that Fig. 4 is provided by the embodiment of the present invention, as shown in Figure 4,
The cooling means of the battery bag of the present embodiment, specifically may include steps of:
201, the temperature of battery bag is detected.
In the embodiment of the present invention, the detailed process of temperature of detection battery bag, refers in above-described embodiment in step 101
Describing, in the embodiment of the present invention, its principle is with to realize process identical, and here is omitted.
202, the temperature of battery bag is compared with the temperature threshold preset, if the temperature of battery bag is more than temperature threshold
Value, according to the temperature of battery bag, determines the target temperature of coolant.
In the embodiment of the present invention, according to the temperature of battery bag, determine the detailed process of the target temperature of coolant, refer to
Stating the description in step 102 in embodiment, in the embodiment of the present invention, its principle is with to realize process identical, and here is omitted.
203, utilize temperature to be less than or equal to the coolant of target temperature, battery bag is cooled down.
After temperature according to battery bag determines the target temperature of coolant, it is possible to according to the coolant pair of target temperature
Battery bag cools down, in embodiments of the present invention, it is determined that the target temperature of coolant, in addition it is also necessary to compare the temperature of coolant
Size with target temperature.
For example, it is possible to the Current Temperatures of detection coolant；If the Current Temperatures of coolant is more than the target temperature of coolant,
Coolant is cooled down, so that the temperature of coolant is down to target temperature；And then, utilize the cooling processed through cooling
Liquid, cools down battery bag.
Specifically, it is possible to use temperature sensor is detected as the Current Temperatures of the coolant of battery bag cooling, if detecting
The Current Temperatures of coolant more than the target temperature of coolant, then refrigeration control system can be utilized to carry out cold to coolant
But, after the Current Temperatures of coolant is down to target temperature, refrigeration control system controls to open coolant circulation, enters battery bag
Row cooling.For saves energy, it is only necessary to by Current Temperatures more than the temperature of the coolant of target temperature, be down to target temperature i.e.
Can so that more electric energy can use for miscellaneous part, improves the utilization rate of electric energy.
Such as, the temperature of battery bag is 40 DEG C, needs the coolant using target temperature to be 24 DEG C to carry out cold to battery bag
But, if detecting, the Current Temperatures of coolant is 30 DEG C, then need the temperature of coolant is down to 24 DEG C, then refrigeration control system
System controls ON cycle again, cools down battery bag.
Or, if the Current Temperatures of coolant is less than or equal to the target temperature of coolant, then need not coolant
Cool down, coolant can be directly utilized battery bag is cooled down.
Such as, the temperature of battery bag is 40 DEG C, needs the coolant using target temperature to be 24 DEG C to carry out cold to battery bag
But, if detecting, the Current Temperatures of coolant is 24 DEG C, then refrigeration control system can direct ON cycle, battery bag is carried out
Cooling.
If the temperature of 204 battery bags is less than or equal to temperature threshold, stop the cooling to battery bag.
Along with the circulation of coolant, the other temperature of battery is constantly reducing, when the temperature of battery bag is less than or equal to
After temperature threshold, refrigeration control system closes closed loop, stops the cooling to battery bag.So, the consumption of electric energy has been saved so that
More electric energy can use for miscellaneous part, improves the utilization rate of electric energy.
The cooling means of the battery bag that the embodiment of the present invention is provided, by the temperature of battery bag that will detect with preset
Temperature threshold be compared to determine that battery bag, the need of cooling, if the temperature of battery bag is more than temperature threshold, then needs
Battery bag is cooled down, and determines the target temperature of coolant according to the temperature of battery bag, then utilize temperature to be less than or equal to
Battery bag is cooled down by the coolant of target temperature, and after the temperature of battery bag is down to temperature threshold, stops battery bag
Cool down.In the cooling means of the battery bag that the embodiment of the present invention provides, determine battery bag according to the temperature of battery bag
The target temperature of the coolant required for cooling, and then according to target temperature, battery bag is carried out cooling process, it is achieved that to fall
The temperature using coolant during temperature adjusts, it is to avoid in prior art when opening cooling function, and cooling system uses fixed temperature
Coolant that battery bag carries out the energy resource consumption that water-cooled cooling causes is higher, the problem of the energy waste caused, have higher
Motility, reduce energy resource consumption, it is to avoid energy waste, improve the reasonability of battery bag electric energy distribution, effectively prolong
The service life of long battery bag.
Embodiment three
First structural representation of the cooling system of the battery bag that Fig. 5 is provided by the embodiment of the present invention, as it is shown in figure 5,
The cooling system of the battery bag of the present embodiment, specifically may include that sensor 11, battery control system 12, refrigeration control system
13。
Sensor 11, for detecting the temperature of battery bag, and is sent to battery control by the temperature of the battery bag detected
System 12；
Battery control system 12, the temperature of the battery bag for being detected by sensor 11 is carried out with the temperature threshold preset
Relatively, if the temperature of battery bag is more than temperature threshold, according to the temperature of battery bag, determine the target temperature of coolant, and by mesh
Mark temperature is sent to refrigeration control system 13；
Refrigeration control system 13, for utilizing temperature to be less than or equal to the coolant of target temperature, is carried out battery bag
Cooling processes.
Further, battery control system 12, specifically for:
Obtain the corresponding relation between temperature and the temperature of coolant of battery bag；
According to the temperature of battery bag, from corresponding relation, it is thus achieved that the temperature of corresponding coolant, using as target temperature.
Further, refrigeration control system 13, specifically for:
The Current Temperatures of detection coolant；
If the Current Temperatures of coolant is more than the target temperature of coolant, coolant is carried out cooling process, so that cold
But the temperature of liquid is down to target temperature；
Utilize the coolant processed through cooling, battery bag is cooled down.
Further, refrigeration control system 13, specifically for:
The Current Temperatures of detection coolant；
If the Current Temperatures of coolant is less than or equal to the target temperature of coolant, utilize coolant that battery bag is carried out
Cooling.
Optionally, battery control system 12, it is additionally operable to:
The temperature of the battery bag for being detected by sensor compares with the temperature threshold preset, if the temperature of battery bag
Degree, less than or equal to temperature threshold, triggers refrigeration control system and stops the cooling to battery bag.
Second structural representation of the cooling system of the battery bag that Fig. 6 is provided by the embodiment of the present invention, as shown in Figure 6,
In embodiments of the present invention, battery bag 10 may include that sensor 11, battery core (not shown), cooling pipe 101；Refrigeration
Control system 13 at least may include that compressor 131, condenser 132, vaporizer 133, water pump 134, temperature sensor 135.Its
In, after sensor 11 detects the temperature of battery bag 10, it being sent to battery control system 12, battery control system 12 is by sensor
The temperature of the battery bag 10 that 11 detect compares with the temperature threshold preset, if the temperature of battery bag 10 is more than temperature threshold
Value, determines the target temperature of coolant, and target temperature is sent to refrigeration control system 13 according to the temperature of battery bag 10, system
Cold control system 13 according to target temperature, detects the temperature of coolant in cooling pipe 101 by temperature sensor 135, then
By controlling compressor 131, condenser 132, vaporizer 133, water pump 134 respectively, and then the temperature of adjustment coolant, to battery
Bag cools down.
The cooling system of the battery bag that the embodiment of the present invention is provided, by the temperature of sensor detection battery bag 10, and
The temperature of the battery bag 10 detected is sent to battery control system 12, then battery control system 12, sensor 11 is examined
The temperature of the battery bag 10 measured compares with the temperature threshold preset, if the temperature of battery bag 10 is more than temperature threshold, root
According to the temperature of battery bag 10, determine the target temperature of coolant, and target temperature be sent to refrigeration control system 13, finally by
Refrigeration control system 13 utilizes temperature to be less than or equal to the coolant of target temperature, and battery bag 10 is carried out cooling process, this
In the cooling system of the battery bag that inventive embodiments provides, determine according to the temperature of battery bag 10 needed for battery bag 10 is cooled down
The target temperature of the coolant wanted, and then according to target temperature, battery bag 10 is cooled down, it is achieved that use cold during to cooling
But the temperature of liquid adjusts, it is to avoid in prior art when opening cooling function, and cooling system uses the coolant pair of fixed temperature
It is higher that battery bag 10 carries out the energy resource consumption that water-cooled cooling causes, and the problem of the energy waste caused has higher motility,
Reduce energy resource consumption, it is to avoid energy waste, improve the reasonability of battery bag 10 electric energy distribution, effective extend battery bag
The service life of 10.
Device embodiment described above is only that schematically the unit wherein illustrated as separating component can be
Or may not be physically separate, the parts shown as unit can be or may not be physical location, i.e.
May be located at a place, or can also be distributed at least two NE.Can be selected it according to the actual needs
In some or all of module realize the purpose of the present embodiment scheme.Those of ordinary skill in the art are not paying creativeness
Work in the case of, be i.e. appreciated that and implement.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered
Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. the cooling means of a battery bag, it is characterised in that including:
The temperature of detection battery bag；
The temperature of described battery bag is compared with the temperature threshold preset, if the temperature of described battery bag is more than described temperature
Threshold value, according to the temperature of described battery bag, determines the target temperature of coolant；
Utilize temperature to be less than or equal to the coolant of described target temperature, described battery bag is cooled down.
The cooling means of battery bag the most according to claim 1, it is characterised in that the described temperature according to described battery bag
Degree, determines the target temperature of coolant, including:
Obtain the corresponding relation between temperature and the temperature of coolant of battery bag；
According to the temperature of described battery bag, from described corresponding relation, it is thus achieved that the temperature of corresponding coolant, using as described mesh
Mark temperature.
The cooling means of battery bag the most according to claim 1, it is characterised in that described utilize temperature to be less than or equal to
The liquid of described target temperature, cools down described battery bag, including:
Detect the Current Temperatures of described coolant；
If the Current Temperatures of described coolant is more than the target temperature of described coolant, then described coolant is carried out at cooling
Reason, so that the temperature of described coolant is down to described target temperature；
Utilize the described coolant processed through cooling, described battery bag is cooled down.
The cooling means of battery bag the most according to claim 1, it is characterised in that described utilize temperature to be less than or equal to
The liquid of described target temperature, cools down described battery bag, including:
Detect the Current Temperatures of described coolant；
If the Current Temperatures of described coolant is less than or equal to the target temperature of described coolant, utilize described coolant to institute
State battery bag to cool down.
The cooling means of battery bag the most according to claim 1, it is characterised in that described method also includes:
If the temperature of described battery bag is less than or equal to described temperature threshold, stop the cooling to described battery bag.
6. the cooling system of a battery bag, it is characterised in that include sensor, battery control system and refrigeration control system；
Described sensor, for detecting the temperature of battery bag, and is sent to described battery control by the temperature of the battery bag detected
System processed；
Described battery control system, for the temperature of described battery bag detected by described sensor and the temperature threshold preset
Compare, if the temperature of described battery bag is more than described temperature threshold, according to the temperature of described battery bag, determine coolant
Target temperature, and described target temperature is sent to described refrigeration control system；
Described refrigeration control system, for utilizing temperature to be less than or equal to the coolant of described target temperature, to described battery
Bag cools down.
The cooling system of battery bag the most according to claim 6, it is characterised in that described battery control system, specifically uses
In:
Obtain the corresponding relation between temperature and the temperature of coolant of battery bag；
According to the temperature of described battery bag, from described corresponding relation, it is thus achieved that the temperature of corresponding coolant, using as described mesh
Mark temperature.
The cooling system of battery bag the most according to claim 6, it is characterised in that described refrigeration control system, specifically uses
In:
Detect the Current Temperatures of described coolant；
If the Current Temperatures of described coolant is more than the target temperature of described coolant, described coolant is carried out cooling process,
So that the temperature of described coolant is down to described target temperature；
Utilize the described coolant processed through cooling, described battery bag is cooled down.
The cooling system of battery bag the most according to claim 6, it is characterised in that described refrigeration control system, specifically uses
In:
Detect the Current Temperatures of described coolant；
If the Current Temperatures of described coolant is less than or equal to the target temperature of described coolant, utilize described coolant to institute
State battery bag to cool down.
The cooling system of battery bag the most according to claim 6, it is characterised in that described battery control system, also uses
In:
The temperature of the described battery bag detected by described sensor compares with the temperature threshold preset, if described battery bag
Temperature less than or equal to described temperature threshold, trigger described refrigeration control system and stop the cooling to described battery bag.
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| CN201610685897.5A CN106229574B (en) | 2016-08-18 | 2016-08-18 | cooling method and system for battery pack |
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