CN108199121A - Power battery low temperature assisted heating device and method based on phase-change thermal storage - Google Patents
Power battery low temperature assisted heating device and method based on phase-change thermal storage Download PDFInfo
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- CN108199121A CN108199121A CN201711459090.0A CN201711459090A CN108199121A CN 108199121 A CN108199121 A CN 108199121A CN 201711459090 A CN201711459090 A CN 201711459090A CN 108199121 A CN108199121 A CN 108199121A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—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
- H01M10/62—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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
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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
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of power battery low temperature assisted heating devices and method based on phase-change thermal storage, solid-liquid phase change heat exchanger is parallel to by two electric liquid triple valves in battery cooling circuit, it is serially connected with ptc heater between electronic water pump and the second electric liquid triple valve, the first another both ends of electric liquid triple valve connect temperature sensor on coolant effuser respectively and radiator, the second another both ends of electric liquid triple valve connect ptc heater and radiator respectively；Central control unit connection battery temperature sensor, temperature sensor, electronic water pump, electronic fan, ptc heater and two electric liquid triple valves.The part of waste heat that the present invention can be given out under power battery normal operating conditions using the latent heat of phase change of phase-change material recycling power battery, and be stored in phase-change material.When power battery needs preheating under cryogenic, the heat stored in phase-change material can be passed to power battery by coolant, reach normal working temperature.
Description
Technical field
The present invention relates to a kind of power battery low temperature assisted heating device, especially a kind of power electrics using phase-change thermal storage
Pond low temperature assisted heating device and method.
Background technology
With the increasingly exacerbation of energy problem and problem of environmental pollution, new-energy automobile is as current conventional fuel oil automobile
A kind of substitute, just receives more and more attention, wherein the electric vehicle using lithium ion battery as power source has become respectively
A automobile production manufacturer and the research hotspot of scientific research institution.Similar with conventional engines, lithium-ion-power cell is in the course of work
In can distribute heat, if without suitable heat management solution, thermal runaway easily occurs, power battery is caused to catch fire, fire
It burns and even explodes, so as to generate serious threat to the personal safety of driver and conductor.In electric vehicle vehicle on sale at present, power
The heat dissipation of battery relies primarily on air convection and liquid convection mode, and liquid medium can make since thermal conductivity factor is higher
Battery module reaches the advantages that better temperature uniformity, it is considered to be the developing direction of following power battery thermal management system.
However, power battery is in normal work in addition to heat dissipation is needed, in cryogenic conditions, especially when environment temperature is less than 0
Degree Celsius when, need to preheat battery pack.Some researches show that when power battery discharges under less than 0 degrees celsius
When, internal resistance can sharply increase, so as to influence battery life.At present, the solution party heated for power battery under cryogenic conditions
Case is essentially relying on battery surface arrangement heating wire, heating film, is heated by active mode of heating, this mode of heating
It needs to consume certain electric energy.For electric vehicle, vehicle mounted dynamic battery is unique power source, so if using master
Dynamic mode of heating needs vehicle power supply or battery backup to provide electric energy, electric vehicle continual mileage certainly will be caused to reduce.
For this problem, need to design a kind of power battery low-temperature heating device based on phase-change thermal storage, which can
With the heat distributed when power battery is worked normally by phase-change material recycling battery, and when environment temperature is relatively low, utilize
The waste heat recycled preheats battery, and booster action is played to existing active mode of heating, is actively heated so as to reduce
The electric energy consumed plays heat recovery and saves the effect of energy consumption.
Invention content
The purpose of the present invention is to overcome the deficiencies of the prior art, proposes that a kind of power battery based on phase-change thermal storage is low
Warm assisted heating device and its implementation.
Technical scheme is as follows：
A kind of power battery low temperature assisted heating device based on phase-change thermal storage, including battery cooling circuit, solid-liquid phase change heat accumulation
Device, ptc heater, central control unit, the battery cooling circuit are made of battery coolant plates, electronic water pump, radiator,
The solid-liquid phase change heat exchanger is used as coolant flow branch circuit parallel connection by first and second electric liquid triple valve and is cooled back in battery
Lu Zhong is serially connected with ptc heater, solid-liquid phase change thermal storage device in the connecting tube between electronic water pump and the second electric liquid triple valve
Coolant inlet be connected to the first electric liquid triple valve, cooling liquid outlet connect the second electric liquid triple valve, first electricity
The another both ends of sub- liquid tee valve connect respectively temperature sensor on the coolant effuser of battery cooling circuit and radiator,
And the another both ends of the second electric liquid triple valve connect ptc heater and radiator respectively；Central control unit signal input part
Battery temperature sensor, the temperature sensor on coolant effuser, the temperature set on solid-liquid phase change thermal storage device are connected respectively
The temperature sensor of the inlet of sensor and electronic water pump setting, central control unit control signal output connect respectively
Electronic water pump, electronic fan, ptc heater and first and second electric liquid triple valve.
The solid-liquid phase change heat exchanger includes heat storage units, housing and insulating layer, and wherein heat storage units are divided into tube side and shell
Journey, tube side are liquid flow line, and shell side filling phase-change material, housing is equipped with coolant flow entrance and coolant flow goes out
Mouthful, coolant flow entrance is connected through tube side liquid flow line with outlet.
The phase-change material filled inside the heat storage units is low temperature phase change material of the phase transition temperature between 30 DEG C ~ 50 DEG C
Material.
The phase-change material is NSC 77136 crystal, and fusing point is 30 DEG C, and latent heat of phase change is 222 kJ/kg.
A kind of implementation of the power battery low temperature assisted heating device based on phase-change thermal storage：
When power battery works normally, central control unit is turned on and off phase by controlling electric liquid threeway valve events
Change heat reservoir branch or radiator branch make coolant flow through solid-liquid phase change heat exchanger in power battery preliminary work, with phase transformation
Heat exchange occurs for material, by heat storage in phase-change material, when phase-change material temperature is identical with coolant, and energy storage stage knot
Beam；
After power battery is stopped, electronic water pump, electronic fan and electric liquid three are closed in central control unit control
Port valve completely cuts off solid-liquid phase change heat exchanger, prevents heat loss through convection of the heat stored in solid-liquid phase change heat exchanger by coolant
Loss；
When power battery needs to work under cryogenic, central control unit control electric liquid triple valve opens solid liquid phase
Become heat exchanger branch, close radiator branch, while open electronic water pump so that coolant is in solid-liquid phase change heat exchanger and power
It is flowed between battery coolant plates, coolant absorbs the heat stored in phase-change material and preheated for battery；
Central control unit judges whether power battery can start by the temperature signal that battery temperature sensor acquires；If it reaches
To start-up temperature, then phase-change heat storage device branch is closed, battery is made to enter working condition；If battery temperature is still relatively low, close
Phase-change heat storage device branch opens ptc heater and continues to preheat battery.
The beneficial effects of the invention are as follows：
The present invention can be distributed under power battery normal operating conditions using the latent heat of phase change of phase-change material recycling power battery
The part of waste heat gone out, and be stored in phase-change material.It, can be by phase transformation material when power battery needs preheating under cryogenic
The heat stored in material passes to power battery by coolant, reaches normal working temperature.The apparatus structure is simple, peace
Full unfailing performance is high, and is easy to realize in power battery thermal management system.
Description of the drawings
Fig. 1 is the power battery low-temperature heating device schematic diagram based on phase-change thermal storage of the present invention；
Fig. 2 is solid-liquid phase change thermal storage device structure diagram；
Fig. 3 is shell side filling phase-change material schematic diagram.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, the power battery low temperature assisted heating device based on phase-change thermal storage of the present invention includes：Battery temperature
Sensor 1, battery coolant plates 2, power battery 3, cooling-water temperature transmitter 4, the first electric liquid triple valve 5, electron wind
Fan 6, radiator 7, the second electric liquid triple valve 8, phase-change material temperature sensor 9, ptc heater 10, coolant temperature pass
Sensor 11, central control unit 12, solid-liquid phase change thermal storage device 13, electronic water pump 14.
Power battery 3, battery coolant plates 2, electronic water pump 14, cooling-water temperature transmitter 4,11, radiator 7 form electricity
Pond cooling circuit, solid-liquid phase change heat exchanger 13 are used as coolant flow branch circuit parallel connection by first and second electric liquid triple valve 5,8
In battery cooling circuit.The coolant inlet of solid-liquid phase change thermal storage device 13 is connected to the first electric liquid triple valve 5 and cools down
Liquid outlet then connects the second electric liquid triple valve 8.The another both ends of first electric liquid triple valve 5 connect temperature sensor respectively
4 and the another both ends of radiator 7 and the second electric liquid triple valve 8 then connect ptc heater 10 and radiator 7 respectively.
Temperature sensor 1,4,9,11 is connected to central control unit 12 by signal wire, and central control unit 12 then passes through
Control line is connected to electronic water pump 14, electronic fan 6,10 and first and second electric liquid triple valve 5,8 of ptc heater.
Solid-liquid phase change thermal storage device 13 employed in the present invention is single channel thermal storage device, and structure is referring to attached drawing 2, including phase
Become material 13-4, coolant flow pipeline 13-5, housing and insulating layer 13-3.Solid-liquid phase change thermal storage device 13 is shell-and-tube heat exchanger
Structure, wherein tube side are as coolant flow pipeline, shell side filling phase-change material 13-4（See Fig. 3）.Housing is equipped with coolant
Entrance 13-1 and cooling liquid outlet 13-2, coolant inlet 13-1 and cooling liquid outlet 13-2 pass through coolant flow pipeline 13-5
It is connected.Coolant flow pipeline 13-5 is metal material, has higher thermal conductivity factor.Institute's housing and coolant flow pipeline
Certain elasticity is respectively provided with, phase-change material can be met in phase transition process due to stress that volume change generates.The phase transformation storage
Hot device outer layer is thermal insulation material, for wrapping up housing, is scattered and disappeared so as to reduce heat.
Phase-change material 13-4 in solid-liquid phase change thermal storage device 13 selects NSC 77136 crystal, and fusing point is 30 DEG C, latent heat of phase change
For 222 kJ/kg, also phase-change material of other the optional fusing points between 30 DEG C ~ 50 DEG C.
The present invention is using first and second electric liquid triple valve 5 of the control of central control unit 12,8, solid-liquid phase change thermal storage device
13, specific control strategy and embodiment are as follows：
When power battery 3 works normally, central control unit 12 controls first and second electric liquid triple valve 5,8 to open phase transformation
13 branch of thermal storage device closes 7 branch of radiator and electronic fan 6 so that coolant is cold in solid-liquid phase change thermal storage device 13 and battery
But it is circulated between liquid plate 2, the heat that battery distributes is carried to phase-change heat storage device 13.Phase-change heat storage device is in the normal work of battery
Make stage holding energy storage state, phase-change material temperature signal is transferred to central control unit 12 by phase-change material temperature sensor 9.
When phase-change material is completely melt, central control unit 12 controls first and second electric liquid triple valve 5,8 to close phase-change heat storage device
13 branches open 7 branch of radiator, and the heat of power battery 3 is taken away by electronic fan 6 at this time.
When power battery 3 is stopped, central control unit 12 keeps 13 branch of phase-change heat storage device to close, and prevents from cooling down
The heat in phase-change heat storage device 13 is taken away in liquid convection current.
After standing a few hours at low ambient temperatures, when power battery 3 need to work again, central control unit 12 controls electricity
Sub- water pump 14 is opened, and first and second electric liquid triple valve 5,8 of control opens 13 branch of phase-change heat storage device, closes 7, radiator
Road makes coolant be flowed between phase-change heat storage device 13 and battery coolant plates 2, utilizes the heat stored in phase-change material
Coolant.
Central control unit 12 judges phase transformation in phase-change heat storage device 13 according to the signal that phase-change material temperature sensor 9 transmits
The state of material, and first and second electric liquid triple valve 5,8 of control closes phase-change heat storage device 13 after phase-change material solidification
7 branch of radiator is opened, and electronic fan 6 is kept to be closed in road.
If the shortage of heat stored in phase-change heat storage device 13 is to complete the preheating process of power battery, central control unit
12 can according to cooling-water temperature transmitter 4,11 transmit temperature signal control ptc heater open, continue to power battery 3 into
Row preheating.
The present invention can absorb heat and the storage that battery distributes when power battery works normally by phase-change heat storage device
In phase-change material, when power battery needs to work under cryogenic, the heat of this section store can be used, used
In the preheating process of boosting battery.The present invention can play by heat recovery and reduce battery preheating process energy consumption
Effect；In addition, in normal battery operation, the load of liquid cooling system is shared by phase-change heat storage device branch, can also be played
Reduce the effect of liquid cooling system power consumption components energy consumption.
Claims (5)
1. a kind of power battery low temperature assisted heating device based on phase-change thermal storage is stored up including battery cooling circuit, solid-liquid phase change
Hot device, ptc heater, central control unit, it is characterised in that：The battery cooling circuit is by battery coolant plates, electronic water
Pump, radiator are formed, and the solid-liquid phase change heat exchanger is used as coolant flow branch simultaneously by first and second electric liquid triple valve
It is coupled in battery cooling circuit, ptc heater is serially connected in the connecting tube between electronic water pump and the second electric liquid triple valve,
The coolant inlet of solid-liquid phase change thermal storage device is connected to the first electric liquid triple valve, cooling liquid outlet connects the second electric liquid
Triple valve, the temperature that the another both ends of the first electric liquid triple valve are connected respectively on the coolant effuser of battery cooling circuit pass
Sensor and radiator and the another both ends of the second electric liquid triple valve connect ptc heater and radiator respectively；Center control is single
First signal input part connects battery temperature sensor, the temperature sensor on coolant effuser, solid-liquid phase change thermal storage device respectively
The temperature sensor of the inlet setting of the temperature sensor and electronic water pump of upper setting, central control unit control signal are defeated
Outlet connects electronic water pump, electronic fan, ptc heater and first and second electric liquid triple valve respectively.
2. the power battery low temperature assisted heating device according to claim 1 based on phase-change thermal storage, it is characterised in that：Institute
It states solid-liquid phase change heat exchanger and includes heat storage units, housing and insulating layer, wherein heat storage units are divided into tube side and shell side, and tube side is liquid
Body flow line, shell side filling phase-change material, housing is equipped with coolant flow entrance and coolant flow exports, and cools down liquid stream
Dynamic entrance is connected through tube side liquid flow line with outlet.
3. the power battery low temperature assisted heating device according to claim 2 based on phase-change thermal storage, it is characterised in that：Institute
The phase-change material filled inside the heat storage units stated is low-temperature phase-change material of the phase transition temperature between 30 DEG C ~ 50 DEG C.
4. the power battery low temperature assisted heating device according to claim 3 based on phase-change thermal storage, it is characterised in that：
The phase-change material is NSC 77136 crystal, and fusing point is 30 DEG C, and latent heat of phase change is 222 kJ/kg.
5. a kind of embodiment party of any power battery low temperature assisted heating devices based on phase-change thermal storage of claim 1-4
Method, it is characterised in that：
When power battery works normally, central control unit is turned on and off phase by controlling electric liquid threeway valve events
Change heat reservoir branch or radiator branch make coolant flow through solid-liquid phase change heat exchanger in power battery preliminary work, with phase transformation
Heat exchange occurs for material, by heat storage in phase-change material, when phase-change material temperature is identical with coolant, and energy storage stage knot
Beam；
After power battery is stopped, electronic water pump, electronic fan and electric liquid three are closed in central control unit control
Port valve completely cuts off solid-liquid phase change heat exchanger, prevents heat loss through convection of the heat stored in solid-liquid phase change heat exchanger by coolant
Loss；
When power battery needs to work under cryogenic, central control unit control electric liquid triple valve opens solid liquid phase
Become heat exchanger branch, close radiator branch, while open electronic water pump so that coolant is in solid-liquid phase change heat exchanger and power
It is flowed between battery coolant plates, coolant absorbs the heat stored in phase-change material and preheated for battery；
Central control unit judges whether power battery can start by the temperature signal that battery temperature sensor acquires；If it reaches
To start-up temperature, then phase-change heat storage device branch is closed, battery is made to enter working condition；If battery temperature is still relatively low, close
Phase-change heat storage device branch opens ptc heater and continues to preheat battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711459090.0A CN108199121A (en) | 2017-12-28 | 2017-12-28 | Power battery low temperature assisted heating device and method based on phase-change thermal storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711459090.0A CN108199121A (en) | 2017-12-28 | 2017-12-28 | Power battery low temperature assisted heating device and method based on phase-change thermal storage |
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| CN108199121A true CN108199121A (en) | 2018-06-22 |
Family
ID=62585178
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711459090.0A Pending CN108199121A (en) | 2017-12-28 | 2017-12-28 | Power battery low temperature assisted heating device and method based on phase-change thermal storage |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448199A (en) * | 2018-02-06 | 2018-08-24 | 上海理工大学 | A kind of power battery low temperature assisted heating device based on phase-change thermal storage |
| CN110086723A (en) * | 2019-04-25 | 2019-08-02 | 新华三技术有限公司 | A kind of router |
| CN110400945A (en) * | 2019-08-28 | 2019-11-01 | 四川荣创新能动力***有限公司 | Fuel cell residual neat recovering system, fuel cell car and its working method |
| CN111477993A (en) * | 2020-05-16 | 2020-07-31 | 天津大学 | High-efficiency thermal management system for power battery pack |
| CN111634212A (en) * | 2020-05-14 | 2020-09-08 | 东风汽车集团有限公司 | Fuel cell automobile thermal management system, method, storage medium and automobile |
| CN112002860A (en) * | 2020-07-14 | 2020-11-27 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN112563618A (en) * | 2021-01-06 | 2021-03-26 | 张展浩 | Battery temperature control device of electric automobile and control method thereof |
| CN113645811A (en) * | 2021-08-18 | 2021-11-12 | 潍柴动力股份有限公司 | Controller assembly, vehicle and controller cooling method |
| CN114963655A (en) * | 2022-06-13 | 2022-08-30 | 武汉理工大学 | Low-thermal-inertia lithium battery cooling liquid storage system |
| WO2022245336A1 (en) * | 2021-05-18 | 2022-11-24 | Wärtsilä North America, Inc. | Apparatus, device and computer implemented method for controlling cooling of energy storage module |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448199A (en) * | 2018-02-06 | 2018-08-24 | 上海理工大学 | A kind of power battery low temperature assisted heating device based on phase-change thermal storage |
| CN110086723A (en) * | 2019-04-25 | 2019-08-02 | 新华三技术有限公司 | A kind of router |
| CN110086723B (en) * | 2019-04-25 | 2022-01-25 | 新华三技术有限公司 | Router |
| CN110400945A (en) * | 2019-08-28 | 2019-11-01 | 四川荣创新能动力***有限公司 | Fuel cell residual neat recovering system, fuel cell car and its working method |
| CN111634212A (en) * | 2020-05-14 | 2020-09-08 | 东风汽车集团有限公司 | Fuel cell automobile thermal management system, method, storage medium and automobile |
| CN111477993A (en) * | 2020-05-16 | 2020-07-31 | 天津大学 | High-efficiency thermal management system for power battery pack |
| CN111477993B (en) * | 2020-05-16 | 2024-04-09 | 天津大学 | Efficient thermal management system for power battery pack |
| CN112002860B (en) * | 2020-07-14 | 2023-07-11 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN112002860A (en) * | 2020-07-14 | 2020-11-27 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN112563618A (en) * | 2021-01-06 | 2021-03-26 | 张展浩 | Battery temperature control device of electric automobile and control method thereof |
| WO2022245336A1 (en) * | 2021-05-18 | 2022-11-24 | Wärtsilä North America, Inc. | Apparatus, device and computer implemented method for controlling cooling of energy storage module |
| CN113645811B (en) * | 2021-08-18 | 2023-08-18 | 潍柴动力股份有限公司 | Controller cooling method |
| CN113645811A (en) * | 2021-08-18 | 2021-11-12 | 潍柴动力股份有限公司 | Controller assembly, vehicle and controller cooling method |
| CN114963655A (en) * | 2022-06-13 | 2022-08-30 | 武汉理工大学 | Low-thermal-inertia lithium battery cooling liquid storage system |
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Application publication date: 20180622 |
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