CN110380152A - A kind of novel battery thermal management module and its control method - Google Patents
A kind of novel battery thermal management module and its control method Download PDFInfo
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- CN110380152A CN110380152A CN201910521669.8A CN201910521669A CN110380152A CN 110380152 A CN110380152 A CN 110380152A CN 201910521669 A CN201910521669 A CN 201910521669A CN 110380152 A CN110380152 A CN 110380152A
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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
- H01M10/613—Cooling or keeping cold
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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
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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
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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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
- H01M10/65—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
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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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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- Automation & Control Theory (AREA)
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Abstract
The present invention relates to battery O&M technical fields, and in particular to a kind of novel battery thermal management module and its control method.A kind of novel battery thermal management module, including controller, water pump, cold water adjustable valve, hot water adjustable valve, heater and heat exchanger, the water outlet of the built-in water pipe of battery pack is connect with the water inlet of heater water inlet and heat exchanger, heater water outlet is connect by hot water adjustable valve with pump intake, the water outlet of heat exchanger is connect by cold water adjustable valve with pump intake, the water inlet connection of the built-in water pipe of pump outlet and battery pack.A kind of control method of novel battery thermal management module, comprising: A) it obtains and controls water inlet temperature；B) periodically-varied water (flow) direction.Substantial effect of the invention is: facilitate design and deployment；Keep temperature management more accurate, reduces temperature fluctuation；Keep the battery core temperature in battery pack more uniform, improves the battery core service life.
Description
Technical field
The present invention relates to battery O&M technical fields, and in particular to a kind of novel battery thermal management module and its controlling party
Method.
Background technique
Battery refers mainly to the battery pack that the battery pack used on electric car, especially lithium-ion electric core are composed in series, and needs
It operates in reasonable temperature range.If temperature is excessively high, the danger of spontaneous combustion is had, if temperature is lower than lower threshold,
It will affect the electricity and voltage that battery can be exported effectively, reduce the performance of battery pack.Thus battery pack is required to deployment temperature
Managing device cools down when temperature is higher to battery pack, when temperature is lower, heats to battery pack, improves battery pack temperature.
Current battery heat management system is required to four plate heat exchanger, ptc heater, solenoid valve and water pump main parts sizes, passes through
The route of pipe line realizes the heat management of battery after being connected with air-conditioning and battery.Main implementation are as follows: between plate heat exchanger and air-conditioning
Air-conditioner pipe is needed to be connected, water pump connects with solenoid valve and passes through solenoid valve control water route on-off, thus switching plate type heat exchanger and PTC
Water route is heated or cooled, each components are both needed to be connected with low voltage wiring harness.Such mode has the following deficiencies: one, needing
Consider the assembly of whole components, also needs the connection and trend that consider pipeline each other, the opposite heat tube in terms of vehicle subsequent maintenance
The maintenance of reason system also has higher cost price.Two, temperature when cooling water enters battery pack cannot be finely controlled, is easy to make
At battery pack temperature the problem of equilibrium temperature oscillates around.Thus need to develop a kind of simple, temperature control essence easy for installation
Quasi- battery thermal management scheme.
Such as Chinese patent CN205609706U, publication date on September 28th, 2016, a kind of heat management system of battery module,
Including the Battery case to accommodate battery module sealing, heat exchanger and multiple groups superconduction hot plate；The heat superconducting aluminium sheet one
End is connect to carry out heat exchange with heat exchanger, and the other end is clamped to be located between battery module；The heat exchanger setting exists
The outside of the Battery case is simultaneously serially connected on temperature control loop, and the battery module is equipped with the temperature connecting with BMS and passes
Sensor, the BMS control temperature control loop is to the heat exchanger heating or cooling.Its technical solution uses water
Cold replacement is air-cooled, and battery module is enclosed in inside Battery case, can prevent dust entrance and rainwater from pouring into.But it cannot
For solution when battery pack is deployed on electric car, the water pipe wiring of water-cooling system is complicated and temperature controls not fine enough skill
Art problem.
Summary of the invention
Convenient, temperature control accurately battery thermal management side is disposed the technical problem to be solved by the present invention is lacking at present
The technical issues of case.Proposing a kind of dispose facilitates water pipe to connect simple novel battery thermal management module and its control method.
Also there is the technical solution temperature to control more accurate and uniform technical effect.
In order to solve the above technical problems, the technical solution used in the present invention are as follows: a kind of novel battery thermal management module, with
The water inlet and water outlet of the built-in water pipe of battery pack connect, and are connect by heat dissipation pipe with heat dissipation pipe, battery pack
The water outlet of built-in water pipe is equipped with temperature measurement unit, measures the water outlet water temperature of the built-in water pipe of battery pack, including
Controller, water pump, cold water adjustable valve, hot water adjustable valve, heater and heat exchanger, cold water adjustable valve, hot water amount's tune
Section valve, water pump and temperature measurement unit are connect with controller, and the water outlet and heater of the built-in water pipe of battery pack are intake
The connection of the water inlet of mouth and heat exchanger, heater water outlet are connect by hot water adjustable valve with pump intake, and heat is handed over
The water outlet of parallel operation is connect by cold water adjustable valve with pump intake, the built-in water pipe of pump outlet and battery pack into
Mouth of a river connection.By the adjusting of cold water adjustable valve and the opening ratio of hot water adjustable valve, optimum water inlet saliva is obtained
Temperature keeps temperature management more accurate, reduces temperature fluctuation.
Preferably, further including left influent stream valve, left return valve, right influent stream valve, right return valve and reflux tank, Zuo Jinliu valve
First end and right influent stream valve first end are connected to pump outlet, the first end of Zuo Jinliu valve second end and left return valve
It is connected to the water inlet of the built-in water pipe of battery pack, the first end of right influent stream valve second end and right return valve is and battery pack
Built-in water pipe water outlet connection, the second end of the second end of left return valve and right return valve is connected to reflux tank,
Reflux tank is connected to the water inlet of heater water inlet and heat exchanger, Zuo Jinliu valve, left return valve, right influent stream valve and
Right return valve is connect with controller.Battery pack is together in series by the lithium cell of many a voltages only 3.7V or so, is formed
The battery pack of the even higher output voltage of 380V.Battery core close to the water inlet of the built-in water pipe of battery pack, has with water body
The maximum temperature difference, can be carried out effectively heat exchange, and with the progress of heat exchange, water temperature also changes, do not only result in
Battery core far from water inlet, lower with the temperature difference of water body, heat exchanger effectiveness reduces, and temperature when final thermal balance is not yet
Together, leading to the battery core temperature close to water inlet and the battery core temperature far from water inlet, there are apparent differences, and then cause
Battery core voltage and battery core internal resistance is unbalanced in battery pack, influences performance and the service life of battery pack entirety.By by battery pack
Built-in water pipe inlet and outlet periodically alternately exchange, the battery core temperature in battery pack can be made more uniform, mentioned
The high battery core service life.
Preferably, further including air pressure regulator, the air pressure regulator is mounted on reflux tank, air pressure regulator
Control of the opening and closing by controller.Air pressure regulator can adjust water body volume because of water body pressure oscillation caused by varying with temperature.
Preferably, further including heat reflux water pump, cold reflux water pump, hot water tank and cold water tank, heat reflux water pump
And the water inlet of cold reflux water pump is connected to reflux tank, the water inlet connection of the water outlet heater of heat reflux water pump,
The water inlet of the water outlet heat exchanger of cold reflux water pump is connected to, and the water outlet of heater is connected to hot water tank water inlet, heat
The water outlet of exchanger is connected to the water inlet of cold water tank, the water outlet of hot water tank by hot water adjustable valve and water pump into
The water outlet of mouth of a river connection, cold water tank is connected to by cold water adjustable valve with pump intake, hot water tank and cold water storage
Case is mounted on air pressure regulator and liquidometer, and described two air pressure regulators and liquidometer are connect with controller.It is logical
It crosses and hot water tank and cold water tank is set, when short-term quick variation occurs in the temperature of battery pack, can will be stored in it
Hot water or cold water, acceleration be input in the built-in water pipe of battery pack, so that the temperature of battery pack is restored to optimum temperature faster
The ability of battery pack reply temperature jump is improved in section.
Preferably, the reflux tank bottom is provided with several parting beads, several described parting beads with return tank bottom
Portion is tightly fastened connection, several described parting beads interweave anyhow is divided into several rectangular cavitys for return tank bottom.Parting bead shape
At cavity have the function of accommodate foreign matter, can will because water body wash away and wear fall off fine material impurity capture, limit
System plays the function of purification cooling water body in cavity.
Preferably, the thickness at the top of the parting bead is greater than the thickness of parting bead bottom.Improve the ability that cavity keeps impurity here.
Preferably, further include shell, the controller, water pump, cold water adjustable valve, hot water adjustable valve, heater,
Heat exchanger, Zuo Jinliu valve, left return valve, right influent stream valve, right return valve, reflux tank, heat reflux water pump, cold reflux water pump,
Hot water tank and cold water tank are installed in shell.Shell can not only be dust-proof, also has certain heat insulation function, reduces
Water temperature is influenced by external environment in hot water tank and cold water tank.
Preferably, the shell is the shell with heat insulation function.For example double casing, interlayer fill air or heat-insulated
Material.Heat-barrier material need to be fire proofing.
A kind of control method of novel battery thermal management module as the aforementioned, comprising the following steps: A) controller reading temperature
The reading of degree measuring unit is calculated required heat dissipation pipe's according to the water temperature in the water outlet of the built-in water pipe of battery pack
The water temperature of water inlet, controller control the opening ratio of cold water adjustable valve and hot water adjustable valve, obtain after mixing required
Water temperature；B) controller controls left influent stream valve and right return valve is opened, and left return valve and right influent stream valve are closed, controller control
Pump operation time T1, shuts down the T2 time, and then controller controls left return valve and right influent stream valve is opened, Zuo Jinliu valve
And right return valve is closed, controller controls pump operation time T1, shuts down the T2 time；C step A to B) is repeated.
Preferably, step B further includes following sub-step: controller controls water pump, heat reflux water pump and cold reflux water
The revolving speed of pump keeps hot water tank and cold water tank liquid level basicly stable；When the water outlet for the built-in water pipe for detecting battery pack
When interior water temperature rises or falls rate more than given threshold, accelerate the revolving speed of water pump, but keeps heat reflux water pump and cold time
The revolving speed of flowing water pump, until hot water tank or cold water tank liquid level are lower than setting water level lower threshold value；Accelerate heat reflux water pump with
And the revolving speed of cold reflux water pump, until hot water tank or cold water tank liquid level are higher than setting water level upper threshold value.
Substantial effect of the invention is: by focusing on components in shell, only pass through reserved waterpipe jointing point
Not Wei battery pack built-in water pipe and radiator connection, make that the water pipe quantity laid is needed to decline to a great extent, facilitate design and
Deployment；By the adjusting of cold water adjustable valve and the opening ratio of hot water adjustable valve, optimum water inlet water temperature is obtained, is made
Temperature management is more accurate, reduces temperature fluctuation；By the way that the inlet and outlet of the built-in water pipe of battery pack are periodical alternately
It exchanges, the battery core temperature in battery pack can be made more uniform, improve the battery core service life；By the way that hot water tank and cold water storage is arranged
Case, when short-term quick variation occurs in the temperature of battery pack, the hot water or cold water that can will be stored in it, acceleration is input to electricity
In the built-in water pipe of Chi Bao, the temperature of battery pack is made to be restored to optimum temperature section faster, it is prominent to improve battery pack reply temperature
The ability of change.
Detailed description of the invention
Fig. 1 is one installation relation schematic diagram of embodiment.
Fig. 2 is one structural schematic diagram of embodiment.
Fig. 3 is two structural schematic diagram of embodiment.
Wherein: 1, battery pack, 2, water inlet, 3, thermal management module, 4, water outlet, 5, radiator, 6, heat dissipation pipe, 31,
Shell, 321, left return valve, 322, Zuo Jinliu valve, 323, right influent stream valve, 324, right return valve, 33, water pump, 341, cool water quantity tune
Save valve, 342, hot water adjustable valve, 35, reflux tank, 36, heater, 361, heat reflux water pump, 37, heat exchanger, 371, cold
Flow back water pump, 38, hot water tank, 381, air pressure regulator, 39, cold water tank.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, a specific embodiment of the invention is further described in detail.
Embodiment one:
A kind of novel battery thermal management module, as shown in Figure 1, the present embodiment thermal management module 3 has shell 31, it is pre- on shell 31
Stay there are four waterpipe jointing, two of them waterpipe jointing respectively with the water inlet 2 and water outlet 4 of the built-in water pipe of battery pack 1
Connection, other two waterpipe jointing pass through heat dissipation pipe 6 respectively and connect with the water inlet of radiator 5 and water outlet 4.Radiator
5 be the radiator 5 with active heat transfer function, rather than simple sheet metal, such as air-conditioning.
As shown in Fig. 2, the present embodiment include controller, water pump 33, cold water adjustable valve 341, hot water adjustable valve 342,
Heater 36, heat exchanger 37, Zuo Jinliu valve 322, left return valve 321, right influent stream valve 323, right return valve 324 and reflux tank
35, cold water adjustable valve 341, hot water adjustable valve 342, water pump 33, temperature measurement unit, Zuo Jinliu valve 322, left return valve
321, right influent stream valve 323 and right return valve 324 are connect with controller, 322 first end of Zuo Jinliu valve and right influent stream valve 323
First end is connected to 33 water outlet of water pump, and the first end of 322 second end of Zuo Jinliu valve and left return valve 321 is and battery pack
The water inlet 2 of 1 built-in water pipe is connected to, the first end of right 323 second end of influent stream valve and right return valve 324 with battery pack 1
Built-in water pipe water outlet 4 be connected to, be configured to exchange water (flow) direction pipeline.The second end of left return valve 321 and the right side
The second end of return valve 324 is connected to reflux tank 35, and reflux tank 35 has low-lying portion, 36 water inlet of heater and heat
The water inlet of exchanger 37 is connected to low-lying portion.35 bottom of reflux tank is provided with several parting beads, several parting beads with return
Stream bottom portion is tightly fastened connection, several parting beads interweave anyhow is divided into several rectangular cavitys for return tank bottom.Parting bead
The thickness at top is greater than the thickness of parting bead bottom.Air pressure regulator 381 is installed, to balance water body volume on reflux tank 35
Variation brings pressure change.
The control method of the present embodiment are as follows:
A) controller reads the reading of temperature measurement unit, according to the water temperature in the water outlet 4 of the built-in water pipe of battery pack 1, meter
The water temperature for obtaining the water inlet of required heat dissipation pipe 6 is calculated, controller controls cold water adjustable valve 341 and hot water adjustable valve
342 opening ratio obtains required water temperature after mixing；B) controller controls left influent stream valve 322 and right return valve 324 is opened,
Left return valve 321 and right influent stream valve 323 are closed, and controller controls 33 duration of runs of water pump T1, are shut down the T2 time, then
Controller controls left return valve 321 and right influent stream valve 323 is opened, and Zuo Jinliu valve 322 and right return valve 324 are closed, control
Device controls 33 duration of runs of water pump T1, shuts down the T2 time；C step A to B) is repeated.It is calculated required heat dissipation pipe's 6
The water temperature of water inlet, method particularly includes: setting optimum working temperature, calculating 4 water temperature of water outlet and optimum working temperature
The temperature difference, water temperature needed for water inlet 2 are to make 2 temperature of water inlet by water body specific heat capacity weight, and 4 temperature of water outlet presses battery pack
It is weight that 1 battery core equivalent specific heat, which holds, and the weighted average of the two is substantially equal to optimum working temperature.
The present embodiment has the beneficial effect that by focusing on components in shell 31, only passes through reserved waterpipe jointing
Respectively built-in water pipe and radiator 5 connection of battery pack 1, makes that the water pipe quantity laid is needed to decline to a great extent, facilitates design
And deployment；By the adjusting of cold water adjustable valve 341 and the opening ratio of hot water adjustable valve 342, obtain it is optimum into
2 water temperature of the mouth of a river, keeps temperature management more accurate, reduces temperature fluctuation；By by the water inlet 2 of the built-in water pipe of battery pack 1 and out
The mouth of a river 4 periodically alternately exchanges, and the battery core temperature in battery pack 1 can be made more uniform, improves the battery core service life.
Embodiment two:
A kind of novel battery thermal management module, the present embodiment on the basis of example 1, have done further improvement.Such as Fig. 3
Shown, the present embodiment on the basis of example 1, increases heat reflux water pump 361, cold reflux water pump 371, hot water tank 38
And cold water tank 39, heat reflux water pump 361 and the water inlet of cold reflux water pump 371 be connected tos with reflux tank 35, heat time
The water inlet connection of the water outlet heater 36 of flowing water pump 361, the water inlet of the water outlet heat exchanger 37 of cold reflux water pump 371
Connection, the water outlet of heater 36 are connected to hot 38 water inlet of water tank, the water outlet of heat exchanger 37 and cold water tank 39
The water outlet of water inlet connection, hot water tank 38 is connected to by hot water adjustable valve 342 with 33 water inlet of water pump, cold water tank 39
Water outlet be connected to 33 water inlet of water pump by cold water adjustable valve 341, hot water tank 38 and cold water tank 39 are respectively mounted
There are air pressure regulator 381 and liquidometer, two air pressure regulators 381 and liquidometer are connect with controller.
The control method of the present embodiment are as follows:
Controller controls the revolving speed of water pump 33, heat reflux water pump 361 and cold reflux water pump 371, makes hot water tank 38 and cold
39 liquid level of water tank is basicly stable；When the water temperature in the water outlet 4 of built-in water pipe for detecting battery pack 1 rises or falls rate
When more than given threshold, accelerate the revolving speed of water pump 33, but keep the revolving speed of heat reflux water pump 361 and cold reflux water pump 371, directly
To hot water tank 38 or 39 liquid level of cold water tank lower than setting water level lower threshold value；Accelerate heat reflux water pump 361 and cold reflux
The revolving speed of water pump 371, until hot water tank 38 or 39 liquid level of cold water tank are higher than setting water level upper threshold value.
The present embodiment has the beneficial effect that by the way that hot water tank 38 and cold water tank 39 is arranged, in the temperature of battery pack 1
When there is short-term quick variation, the hot water or cold water that can will be stored in it accelerates the built-in water pipe for being input to battery pack 1
It is interior, so that the temperature of battery pack 1 is restored to optimum temperature section faster, improves the ability that battery pack 1 copes with temperature jump.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (9)
1. a kind of novel battery thermal management module connect with the water inlet of the built-in water pipe of battery pack and water outlet, and passes through
Heat dissipation pipe connect with heat dissipation pipe, and the water outlet of the built-in water pipe of battery pack is equipped with temperature measurement unit, measures battery pack
Built-in water pipe water outlet water temperature, which is characterized in that
Including controller, water pump, cold water adjustable valve, hot water adjustable valve, heater and heat exchanger, cold water adjustable valve,
Hot water adjustable valve, water pump and temperature measurement unit are connect with controller, the water outlet of the built-in water pipe of battery pack with plus
The connection of the water inlet of hot device water inlet and heat exchanger, heater water outlet are connected by hot water adjustable valve and pump intake
Connect, the water outlet of heat exchanger is connect by cold water adjustable valve with pump intake, pump outlet and battery pack it is built-in
The water inlet of water pipe connects.
2. a kind of novel battery thermal management module according to claim 1, which is characterized in that
It further include left influent stream valve, left return valve, right influent stream valve, right return valve and reflux tank, Zuo Jinliu valve first end and the right side
Influent stream valve first end is connected to pump outlet, the first end of Zuo Jinliu valve second end and left return valve with battery pack
The water inlet of built-in water pipe is connected to, the first end of right influent stream valve second end and right return valve with the built-in water pipe of battery pack
Water outlet connection, the second end of the second end of left return valve and right return valve be connected tos with reflux tank, reflux tank with add
The water inlet of hot device water inlet and heat exchanger connection, Zuo Jinliu valve, left return valve, right influent stream valve and right return valve with
Controller connection.
3. a kind of novel battery thermal management module according to claim 2, which is characterized in that
It further include air pressure regulator, the air pressure regulator is mounted on reflux tank, and the opening and closing of air pressure regulator is by controller
Control.
4. a kind of novel battery thermal management module according to claim 2 or 3, which is characterized in that
It further include heat reflux water pump, cold reflux water pump, hot water tank and cold water tank, hot water pump and the cold reflux water pump of flowing back
Water inlet be connected to reflux tank, heat reflux water pump water outlet heater water inlet connection, cold reflux water pump go out
The water inlet of mouth of a river heat exchanger is connected to, and the water outlet of heater is connected to hot water tank water inlet, the water outlet of heat exchanger
It is connected to the water inlet of cold water tank, the water outlet of hot water tank is connected to by hot water adjustable valve with pump intake, cold storage
The water outlet of water tank is connected to by cold water adjustable valve with pump intake, and hot water tank and cold water tank are mounted on air pressure
Regulating valve and liquidometer, described two air pressure regulators and liquidometer are connect with controller.
5. a kind of novel battery thermal management module according to claim 2 or 3, which is characterized in that
The reflux tank bottom is provided with several parting beads, several described parting beads are tightly fastened company with return tank bottom
It connects, several described parting beads interweave anyhow is divided into several rectangular cavitys for return tank bottom.
6. a kind of novel battery thermal management module according to claim 5, which is characterized in that
Thickness at the top of the parting bead is greater than the thickness of parting bead bottom.
7. a kind of novel battery thermal management module according to claim 4, which is characterized in that
It further include shell, the controller, water pump, cold water adjustable valve, hot water adjustable valve, heater, heat exchanger, Zuo Jin
Flow valve, left return valve, right influent stream valve, right return valve, reflux tank, heat reflux water pump, cold reflux water pump, hot water tank and cold
Water tank is installed in shell.
8. a kind of control method of novel battery thermal management module as claimed in claim 2, which is characterized in that
The following steps are included:
A) controller reads the reading of temperature measurement unit, according to the water temperature in the water outlet of the built-in water pipe of battery pack, calculates
Obtain the water temperature of the water inlet of required heat dissipation pipe, controller controls the aperture of cold water adjustable valve and hot water adjustable valve
Than obtaining required water temperature after mixing；
B) controller controls left influent stream valve and right return valve is opened, and left return valve and right influent stream valve are closed, controller control
Pump operation time T1, shuts down the T2 time, and then controller controls left return valve and right influent stream valve is opened, Zuo Jinliu valve
And right return valve is closed, controller controls pump operation time T1, shuts down the T2 time；
C step A to B) is repeated.
9. a kind of control method of novel battery thermal management module according to claim 8, which is characterized in that
Step B further includes following sub-step:
Controller controls the revolving speed of water pump, heat reflux water pump and cold reflux water pump, makes hot water tank and cold water tank liquid level
It is basicly stable；
When detecting that the water temperature in the water outlet of built-in water pipe of battery pack rises or falls rate more than given threshold, accelerate
The revolving speed of water pump, but the revolving speed of heat reflux water pump and cold reflux water pump is kept, until hot water tank or cold water tank liquid level
Lower than setting water level lower threshold value；
Accelerate the revolving speed of heat reflux water pump and cold reflux water pump, until hot water tank or cold water tank liquid level are higher than setting water
Position upper threshold value.
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| CN201910521669.8A CN110380152B (en) | 2019-06-17 | 2019-06-17 | Battery thermal management module and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910521669.8A CN110380152B (en) | 2019-06-17 | 2019-06-17 | Battery thermal management module and control method thereof |
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| CN110380152B CN110380152B (en) | 2020-10-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428883A (en) * | 2020-11-13 | 2021-03-02 | 东风汽车集团有限公司 | Heating method and heating system for power battery of electric automobile |
| CN113067050A (en) * | 2020-01-02 | 2021-07-02 | 广州汽车集团股份有限公司 | Power battery temperature control system, temperature control method and automobile |
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