CN110518310A - A kind of battery heating sheet of non-uniform heat flux, intelligent thermal management device and method - Google Patents
A kind of battery heating sheet of non-uniform heat flux, intelligent thermal management device and method Download PDFInfo
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- CN110518310A CN110518310A CN201910915622.XA CN201910915622A CN110518310A CN 110518310 A CN110518310 A CN 110518310A CN 201910915622 A CN201910915622 A CN 201910915622A CN 110518310 A CN110518310 A CN 110518310A
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- battery
- heating
- power density
- heating sheet
- temperature
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 115
- 230000004907 flux Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title abstract description 10
- 238000009841 combustion method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002427 irreversible effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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
- H01M10/615—Heating or keeping warm
-
- 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
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of 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
- H01M10/62—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
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- 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
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
-
- 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
- H01M10/6554—Rods or plates
-
- 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
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
-
- 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 relates to a kind of battery heating sheets of non-uniform heat flux, intelligent thermal management device and method.The battery heating sheet of the non-uniform heat flux includes the power density region of at least two different heating powers, the heating sheet connecting line and connector being connected with the multiple power density region.Further relate to a kind of battery intelligent heat management device of non-uniform heat flux, the device includes multiple heating sheets, each heating sheet is corresponding to place each heating region, temperature acquisition controller, battery pack inner sensor, the temperature acquisition controller are connected by corresponding heater wire with the connector on each heating sheet；The battery pack inner sensor is connected with the temperature acquisition controller；Heating power supply is connected with the temperature acquisition controller.A kind of battery intelligent thermal management algorithm of non-uniform heat flux is further related to, this method uses the battery intelligent heat management device of above-mentioned non-uniform heat flux, adjusts the opening/closing of each heating sheet according to temperature threshold.
Description
Technical field
The present invention relates to battery thermal management technical field more particularly to a kind of battery heating sheets of non-uniform heat flux, intelligence
Heat management device and method.
Background technique
It is electronic especially in winter under low temperature environment since the power battery anti-seismic design of the prior art does not have advantage
The decline of automobile course continuation mileage is obvious, and winter continuation of the journey is one of the core index of vehicle user experience, the cryogenic property of battery system
It is then the core competitiveness of battery manufacturer, and non-uniform temperature equally can also aggravate the inconsistency of battery and shorten the service life, institute
The heating system of battery thermally equivalent and temperature difference very little can be allowed essential with a kind of.Existing power battery low-temperature heating system
Power battery is first heated to minimum temperature when low temperature environment charges and is greater than 0 DEG C by mainly low-temperature charging heating, i.e. electric vehicle,
It charges again, the unlatching of heating is determined by minimum temperature, the non-subregion of heating system, and all positions are simultaneously when heating is opened
It begins to warm up, it is smaller not to can guarantee battery system internal difference in temperature.In the prior art, the non-zonal control of heating region charges low
When temperature heating, primary charging can repeatedly open heating, battery system radiates everywhere, keeps the temperature situation be it is different, work as good heat dissipation
Local temperature less than 0 DEG C, when being again turned on heating, bad place of radiating, temperature can be built up, final battery system
System internal difference in temperature can be gradually increased.Heating sheet in the prior art is that uniformly, directly the part of contact battery does not add in unlatching
It can continue dry combustion method when hot, battery can not be conducted heat in time, local temperature can overheat, in some instances it may even be possible to will cause temperature sensing
Device erroneous judgement, actual battery temperature miss the mark temperature, but temperature sensor have detected that target temperature, the charging meeting of battery low temperature
Cause irreversible damage.
Summary of the invention
It can continue dry combustion method when opening heating to solve the part of above-mentioned not direct contact battery, can not in time pass heat
Battery is led, local temperature can overheat, in some instances it may even be possible to it will cause warming and judge by accident, actual battery temperature miss the mark temperature, but
Warming has detected that target temperature, and the charging of battery low temperature will cause irreversible damaging techniques problem, and the present invention provides one kind
Battery heating sheet, the intelligent thermal management device and method of non-uniform heat flux.
The present invention provides a kind of battery heating sheet of non-uniform heat flux, the power including at least two different heating powers
Density area, the heating sheet connecting line and connector being connected with the multiple power density region；Described at least two is different
Heating power, comprising: the first power density region and the second power density region, and the hair in first power density region
Thermal power is greater than the heating power in the second power density region.
Beneficial effects of the present invention: heating sheet power density is uneven, is made of different power regions, high power density
Region is directly contacted with battery pack, and heat conduction heating battery core, low power density region prevents non-direct contact heat conduction portion
Dry combustion method temperature is excessively high, damages adjacent components, while playing the role of battery pack inside holding.
Further, first power density region and the second power density region respectively include multiple regions, and hand over
Difference cloth.
Above-mentioned further effect: the conduction being distributed with conducive to heat of reporting to the leadship after accomplishing a task of different zones, convenient for the heat of dry combustion method part
Amount diffusion.
Further, the thickness in first power density region is greater than the thickness in the second power density region.
Above-mentioned further effect: the thickness of different capacity density area has directly simply distinguished the power of different zones
Density.
Further, first power density region is used for directly heating battery, second power density region
In indirect heating battery.
Above-mentioned further effect: heating sheet carries out two separate modes of heating method to battery, meets battery difference
Demand for heat.
Further, first power density region is that power density is not less than 0.15W/cm2Region, described second
Power density region is that power density is less than 0.15W/cm2Region；The power density is determined by the arrangement density of heating wire
It is fixed.
Above-mentioned further effect: providing a kind of division mode in different power density region, is greater than 0.15W/cm2
The region of power density can efficiently quickly be directly heated for battery, be less than 0.15W/cm2The region of power density can keep away
Exempt from dry combustion method bring overheat condition.
Further, be also connected with temperature sensor on each heating sheet, the data line of the temperature sensor with it is described
Connector connection.
Above-mentioned further effect: temperature sensor can be convenient for work with the temperature and heated condition of real-time detection heating sheet
Temperature is carried out to heating sheet when making and work monitors, can be found in time in the case of overheat and insufficient temperature.
The present invention also provides a kind of battery intelligent heat management devices of non-uniform heat flux, including multiple heating sheets, often
A heating sheet is corresponding to place each heating region, temperature acquisition controller, battery pack inner sensor, the temperature acquisition controller
It is connected by corresponding heater wire with the connector on each heating sheet；The battery pack inner sensor is adopted with the temperature
Collect controller to be connected；Heating power supply is connected with the temperature acquisition controller.
Beneficial effects of the present invention: being provided with multiple heating sheets that can be worked independently to the different location of battery, can be with
It is different according to the heat dispersal situations of the different location in low temperature environment of battery and temperature requirements and carry out different computer heating controls.
Further, further includes: temperature control modules, it is each for the data point reuse according to the multiple temperature sensor
Heating sheet corresponding to temperature sensor it is opening/closing.
Above-mentioned further effect: temperature acquisition controller can be by temperature control modules to multiple temperature sensors
Control is opened and closed in heating sheet, prevents heating sheet heating temperature excessively high, accelerates surrounding components aging；Or in abnormal cases,
Heating sheet continuous heating is prevented, safety is improved.
The present invention also provides a kind of battery intelligent thermal management algorithms of non-uniform heat flux, using the electricity of above-mentioned non-uniform heat flux
Pond intelligent thermal management device adjusts the opening/closing of each heating sheet according to temperature threshold.
Beneficial effects of the present invention: temperature acquisition, control module can be according to the temperature being arranged in battery pack and in heating sheet
Sense acquisition data, intelligent activation switch is switched on or switched off the circuit of required control area, when monitoring somewhere temperature in battery pack
When lower, the circuit for connecting corresponding region is heated；When monitoring that somewhere temperature is higher in battery pack, corresponding region is cut off
Circuit kept the temperature, in real time keep battery pack in temperature difference in the range of a very little.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the battery heating sheet of non-uniform heat flux provided in an embodiment of the present invention；
Fig. 2 be a kind of schematic diagram of the battery intelligent heat management device of non-uniform heat flux provided in an embodiment of the present invention it
One；
Fig. 3 be a kind of schematic diagram of the battery intelligent heat management device of non-uniform heat flux provided in an embodiment of the present invention it
Two；
Fig. 4 be a kind of schematic diagram of the battery intelligent heat management device of non-uniform heat flux provided in an embodiment of the present invention it
Three.
Specific embodiment
In being described below, for illustration and not for limitation, propose such as specific system structure, interface, technology it
The detail of class, to understand thoroughly the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, omit to well-known device, circuit and
The detailed description of method, in case unnecessary details interferes description of the invention.
Fig. 1 is a kind of battery heating sheet of non-uniform heat flux provided in an embodiment of the present invention, different including at least two
Thermal power density region, the heating sheet connecting line 4 and connector 5 being connected with the multiple power density region；It is described extremely
Few two different heating powers, comprising: the first power density region and the second power density region, and first power is close
The heating power for spending region is greater than the heating power in the second power density region, and the first power density region is high power in Fig. 1
Density area 1, the second power density region are high power density region 2 in Fig. 1, the first power density area of the heating sheet
Domain, the second power density region joint and the connecting line 4 be connected by heater wire packet 3.The connector 5 can be with the external world
Power supply control apparatus connection.
In the prior art, heating sheet is uniform, and the part of directly contact battery can not continue dry combustion method when opening heating,
Battery can not be conducted heat in time, local temperature can overheat, in some instances it may even be possible to will cause temperature sensor erroneous judgement, actual battery
Temperature miss the mark temperature, but temperature sensor has detected that target temperature, and the charging of battery low temperature will cause irreversible damage
Wound.
The present invention provides a kind of battery heating sheet of non-uniform heat flux, by above-mentioned setting, distinguishes different power areas
Domain, high power density region are directly contacted with battery pack, heat conduction heating battery core, and low power density region prevents from not connecing directly
It is excessively high to touch heat conduction portion dry combustion method temperature, damages adjacent components, while playing the role of battery pack inside holding.
On the basis of the above embodiments, the present invention provides a kind of battery heating sheet of non-uniform heat flux, further includes, each
Temperature sensor is also connected on heating sheet, the data line of the temperature sensor is connect with the connector.Temperature sensor
It can be convenient for carrying out temperature to heating sheet when work and work monitors with the temperature and heated condition of real-time detection heating sheet, for
The situation of overheat and temperature deficiency can be found in time.
On the basis of the above embodiments, the present invention provides a kind of battery heating sheet of non-uniform heat flux, optional: described
First power density region and the second power density region respectively include multiple regions, and distribution of reporting to the leadship after accomplishing a task；First power is close
The thickness for spending region is greater than the thickness in the second power density region；First power density region is used to directly heat battery,
Second power density region is used for indirect heating battery；First power density region is not less than for power density
0.15W/cm2Region, second power density region be power density be less than 0.15W/cm2Region；The power density
It is determined by the arrangement density of heating wire.
As shown in Figure 2 and Figure 3, on the basis of the above embodiments, the battery intelligent heat management dress of a kind of non-uniform heat flux
It sets, including multiple heating sheets, each heating sheet is corresponding to place each heating region 6, temperature acquisition controller 11, the temperature
Degree acquisition controller 11 is connected by corresponding heater wire 7 with the connector 5 on each heating sheet 8；In the battery pack
Sensor 13 is connected with the temperature acquisition controller 11；Heating power supply 10 is connected with the temperature acquisition controller 11.It is above-mentioned
Structure is arranged in cabinet 9.
In the prior art, the heating of battery heating device, which is opened, is mainly determined by minimum temperature, when heating system is opened
All positions are heated simultaneously, local temperature can overheat, it is also possible to which the erroneous judgement for causing temperature sensor causes battery irreversible
Damage.
The battery intelligent heat management device that the embodiment of the present invention provides a kind of non-uniform heat flux can by above-mentioned setting
It is individually heated and temperature detection, can be carried out according to the temperature of battery and the temperature of heating sheet with the different zones to battery
Heating and the control for stopping heating, avoid battery hot-spot and excessive temperature differentials and battery heating it is impaired.
As shown in figure 4, on the basis of the above embodiments, a kind of battery intelligent heat of non-uniform heat flux provided by the invention
It in managing device, further include, temperature control modules being passed for each temperature of data point reuse according to the multiple temperature sensor
Heating sheet corresponding to sensor it is opening/closing；Temperature collecting module, for reading the numerical value of each sensor.
The embodiment of the present invention also provides a kind of battery intelligent thermal management algorithm of non-uniform heat flux, using above-mentioned unevenness
The battery intelligent heat management device of even heating adjusts the opening/closing of each heating sheet according to temperature threshold.Temperature collecting module
By battery inner sensor, the temperature of battery different zones is detected, if battery temperature is lower than temperature threshold, temperature control
Molding block is powered the heating sheet on the heating region in respective battery region, opens heating mode, and pass through heating in real time
Piece inner sensor 15 is monitored the temperature of heating sheet, if heating sheet occurs, temperature is excessively high or not working condition, issues police
Report；If temperature reaches temperature threshold in battery, stop the work of heating sheet.
Reader should be understood that in the description of this specification reference term " one embodiment ", " is shown " some embodiments "
The description of example ", " specific example " or " some examples " etc. mean specific features described in conjunction with this embodiment or example, structure,
Material or feature are included at least one embodiment or example of the invention.In the present specification, above-mentioned term is shown
The statement of meaning property need not be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described
It may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this
The technical staff in field can be by the spy of different embodiments or examples described in this specification and different embodiments or examples
Sign is combined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (9)
1. a kind of battery heating sheet of non-uniform heat flux, which is characterized in that the power including at least two different heating powers
Density area, the heating sheet connecting line and connector being connected with the multiple power density region；Described at least two is different
Heating power, comprising: the first power density region and the second power density region, and the hair in first power density region
Thermal power is greater than the heating power in the second power density region.
2. battery heating sheet according to claim 1, which is characterized in that first power density region and the second power
Density area respectively includes multiple regions, and distribution of reporting to the leadship after accomplishing a task.
3. battery heating sheet according to claim 1, which is characterized in that the thickness in first power density region is greater than
The thickness in the second power density region.
4. battery heating sheet according to claim 1, which is characterized in that first power density region is for directly adding
Thermal cell, second power density region are used for indirect heating battery.
5. battery heating sheet according to claim 1, which is characterized in that first power density region is power density
Not less than 0.15W/cm2Region, second power density region be power density be less than 0.15W/cm2Region；
The power density is determined by the arrangement density of heating wire.
6. battery heating sheet according to claim 1, which is characterized in that be also connected with temperature sensing on each heating sheet
Device, the data line of the temperature sensor are connect with the connector.
7. a kind of battery intelligent heat management device of non-uniform heat flux, which is characterized in that including it is as claimed in claim 6 it is multiple plus
Backing, the corresponding each heating region of placement of each heating sheet, temperature acquisition controller, battery pack inner sensor,
The temperature acquisition controller is connected by corresponding heater wire with the connector on each heating sheet；
The battery pack inner sensor is connected with the temperature acquisition controller；
Heating power supply is connected with the temperature acquisition controller.
8. battery intelligent heat management device according to claim 7, which is characterized in that further include: temperature control modules are used
In the opening/closing of the heating sheet according to corresponding to the data point reuse of the multiple temperature sensor each temperature sensor.
9. a kind of battery intelligent thermal management algorithm of non-uniform heat flux, which is characterized in that using described in the claims 7 or 8
Device, the opening/closing of each heating sheet is adjusted according to temperature threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915622.XA CN110518310A (en) | 2019-09-26 | 2019-09-26 | A kind of battery heating sheet of non-uniform heat flux, intelligent thermal management device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915622.XA CN110518310A (en) | 2019-09-26 | 2019-09-26 | A kind of battery heating sheet of non-uniform heat flux, intelligent thermal management device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110518310A true CN110518310A (en) | 2019-11-29 |
Family
ID=68633728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910915622.XA Pending CN110518310A (en) | 2019-09-26 | 2019-09-26 | A kind of battery heating sheet of non-uniform heat flux, intelligent thermal management device and method |
Country Status (1)
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| DE102020210306A1 (en) | 2020-08-13 | 2022-02-17 | Robert Bosch Gesellschaft mit beschränkter Haftung | Heated battery module |
| CN114566739A (en) * | 2022-02-28 | 2022-05-31 | 宁德新能源科技有限公司 | Battery heating method and electronic device |
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