CN107946696A - A kind of automobile power cell group temperature control device based on liquid medium - Google Patents
A kind of automobile power cell group temperature control device based on liquid medium Download PDFInfo
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- CN107946696A CN107946696A CN201711432371.7A CN201711432371A CN107946696A CN 107946696 A CN107946696 A CN 107946696A CN 201711432371 A CN201711432371 A CN 201711432371A CN 107946696 A CN107946696 A CN 107946696A
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- cooling plate
- liquid cooling
- water inlet
- temperature control
- battery cell
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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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
- H01M10/61—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
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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
-
- 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
- H01M10/6555—Rods or plates arranged between the cells
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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
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- 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
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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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention relates to the temperature control technology field of automobile power cell group, more particularly to a kind of automobile power cell group temperature control device based on liquid medium.It is made of water inlet manifold, water inlet pipe, automatically controlled speed governing valve, liquid cooling plate, exit branch, thermocouple, outfall sewer, battery cell, radiator, cooling water tank, constant pressure pump, heating coil, electric-controlled switch, electronic control unit, is connected on automobile and with the ECU of automobile.In each battery cell both ends of the surface of automobile batteries group, liquid cooling plate is installed respectively and forms battery pack temperature control conduction assembly.When battery cell adstante febre, heat is transmitted to coolant by liquid cooling plate, and coolant is transported to battery pack temperature control conduction assembly again each liquid cooling plate after being cooled down by radiator forms circulating cooling.Thermocouple detects fluid temperature, and the temperature that automatically controlled speed governing valve controls the flow of coolant in liquid cooling plate to adjust each battery cell maintains optimum working temperature state, improves the heat dissipation effect and heat dissipation uniformity of battery pack.
Description
First, technical field
The present invention relates to the temperature control technology field of automobile power cell group, more particularly, to a kind of vapour based on liquid medium
Car power battery pack temperature control device.
2nd, background technology
With the increasingly reduction of the energy, the deterioration of environment, development new-energy automobile is current reduction energy consumption and environment
The effective way of pollution, wherein hybrid vehicle and electric automobile are the Typical Representatives in new-energy automobile.In this kind of automobile
In, battery cell is usually formed into battery pack in the form of connection in series-parallel, for providing suitable voltage and enough electricity, in automobile
In operational process, the internal resistance of chemical reaction and battery in itself due to inside battery acts on, in the temperature meeting constantly of battery cell
Rise；Simultaneously because cause between each battery cell there are the difference of the internal resistance of cell caused by foozle and internal chemical component
The caloric value of each battery cell is different, along with positional factor of each battery cell in battery pack, causes each battery cell sheet
Temperature distributing disproportionation between body and battery cell is even, so as to influence the service life of battery, safety and reliability.The opposing party
Face, if environment temperature is relatively low, in cold start-up, the electric conductivity of electrical core of power battery and species activity can be affected, so as to drop
Low battery capacity, therefore it is particularly important that to the temperature control of automobile power cell group.
The radiating mode of automobile power cell group generally use mainly has air-cooled and cold two kinds of liquid at present.Wind-cooling heat dissipating mode
Divulge information into battery pack, heat is taken away by the heat convection of air and battery pack, and liquid-cooling heat radiation mode then passes through liquid
Directly or indirectly contacted with battery, heat is taken away by convection current.China State Intellectual Property Office Patent Office was in 04 month 2016 13
Disclose a Publication No. CN9548121267A days, it is entitled " the battery pack radiator of electric automobile a kind of, system and
Method "；The technology introduces outside air by air blower, by cab air conditioning system cooling air, according to temperature environment
Difference introduces the air-flow of different temperatures to battery pack radiating treatment.But the radiating efficiency of this radiating mode is relatively low, and battery
Temperature uniformity between monomer is poor.China State Intellectual Property Office Patent Office disclosed a disclosure on May 9th, 2017
Number it is CN96654417A, entitled " battery liquid cooling apparatus and battery system "；The technology opens up through hole, through hole on liquid cooling plate
Interior heating melt material, liquid flows in liquid cooling plate passage takes away heat, when battery temperature is excessive, hot melt material dissolving, and liquid
Outflow is directly contacted with battery cell, plays the function of extinguishing device.The radiating efficiency of this radiating mode is higher, but due to
Passage is elongated, it is higher along stroke pressure loss and the pressure drop of system, and the energy expenditure of pump is larger, while the temperature of battery cell in itself
It is bad to spend uniformity, it is also difficult to meet the temperature uniformity requirement of battery pack.
3rd, the content of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of automobile power cell group based on liquid medium
Temperature control device.
The present invention is combined with the battery cell of automobile power cell group on automobile, and is connected with the ECU of automobile,
Its technical solution is by water inlet manifold, water inlet pipe, automatically controlled speed governing valve, liquid cooling plate, exit branch, thermocouple, outfall sewer, electricity
Pond monomer, radiator, cooling water tank, constant pressure pump, heating coil, electronic control unit, controlling switch composition；
The liquid cooling plate is led to by liquid cooling plate housing, liquid cooling plate intake tunnel, liquid cooling plate Vertical Channel and liquid cooling plate water outlet
Road is formed, and liquid cooling plate Vertical Channel is evenly distributed in liquid cooling plate housing, and is led to liquid cooling plate intake tunnel and liquid cooling plate water outlet
Road is connected；In order to increase heat exchange area, preferably fin is uniformly distributed along flow direction in each Vertical Channel internal chamber wall；Liquid is cold
Plate is made from a material that be thermally conductive；
In each battery cell both ends of the surface of equipped automobile power cell group, close installation liquid cooling plate composition is electric respectively
Pond group temperature control conduction assembly, is bonded between liquid cooling plate and battery cell by heat conductive silica gel；In composition battery pack temperature control conduction
On the intake tunnel mouth of each liquid cooling plate of assembly, it is connected by water inlet pipe with water inlet manifold, and at each
Automatically controlled speed governing valve is installed respectively on the water inlet pipe being connected with water inlet manifold；In the every of composition battery pack temperature control conduction assembly
On the exhalant canal mouth of one liquid cooling plate, it is connected by exit branch with outfall sewer, and in each and outfall sewer
Thermocouple is installed respectively on the exit branch being connected；The water inlet manifold of connection water inlet pipe is connected with constant pressure pump, constant pressure pump
The other end be connected with cooling water tank, the other end of cooling water tank is connected with radiator, the other end of radiator and connection
The outfall sewer of exit branch is connected；In the outer of the pipeline that the water inlet manifold being connected with water inlet pipe is connected with constant pressure pump
Heating coil is wound on tube wall；Automatically controlled speed governing valve, thermocouple and heating coil and vehicle electronic control unit ECU are connected to form temperature
Spend control loop；Power battery pack is connected by controlling switch with vehicle electronic control unit ECU.
The beneficial effects of the invention are as follows：
1st, temperature control is carried out to battery pack using liquid medium and the mode with separately adjustable active heat removal,
Improve the heat dissipation effect and heat dissipation uniformity of battery pack；
2nd, equally distributed Vertical Channel rectangular rib structures will be designed in liquid cooling plate, and will add liquid-solid contact face
Product, improves the heat dissipation effect and heat dissipation uniformity of battery cell；
3rd, by heating coil, make system that there is low-temperature prewarming startup function, optimize the cold starting property of power battery pack
Energy；
4th, by the way that water inlet and water outlet to be arranged in the both ends of battery pack, and liquid cooling plate water inlet and water outlet are arranged
At liquid cooling plate both ends, when each automatically controlled speed governing valve valve port switch size is identical, make the flow in each water inlet pipe identical, respectively
Flow in a liquid cooling plate Vertical Channel is also identical, improves the uniformity and temperature control effect of battery pack and battery cell heat dissipation
Fruit.
4th, illustrate
Fig. 1 is the overall knot that the temperature control device that assembly is formed is conducted in temperature control of the present invention based on 5 battery cell combinations
The axonometric drawing of structure schematic diagram；
Fig. 2 is the shaft side figure of liquid cooling plate structure diagram of the present invention；
Fig. 3 is the A-O-A sectional views of Fig. 2 of the present invention；
Fig. 4 is the B-B sectional views of Fig. 3 of the present invention；
Fig. 5 is the control circuit system schematic of the present invention；
Fig. 6 is the overall knot that the temperature control device that assembly is formed is conducted in temperature control of the present invention based on 4 battery cell combinations
The axonometric drawing of structure schematic diagram.
Reference numeral
1st, water inlet manifold 2, water inlet pipe 3, automatically controlled speed governing valve 3B, automatically controlled speed governing valve 3C, automatically controlled speed governing valve 3D, electricity
Control speed governing valve 3E, automatically controlled speed governing valve 3F, automatically controlled speed governing valve 4, liquid cooling plate 4B, liquid cooling plate 4C, liquid cooling plate 4D, liquid cooling plate
4E, liquid cooling plate 4F, liquid cooling plate 4-1, liquid cooling plate intake tunnel 4-2, liquid cooling plate Vertical Channel 4-3, liquid cooling plate exhalant canal
4-4, liquid cooling plate housing 5, exit branch 6, thermocouple 6B, thermocouple 6C, thermocouple 6D, thermocouple 6E, thermocouple
6F, thermocouple 7, outfall sewer 8, battery cell 8B, battery cell 8C, battery cell 8D, battery cell 8E, battery list
Body 9, radiator 10, cooling water tank 11, constant pressure pump 12, heating coil 13, electronic control unit ECU 14, controlling switch
5th, embodiment
Detailed description of the present invention implementation process below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the present invention is combined with the battery cell 8 of automobile power cell group to be installed on
On automobile, and be connected with the ECU 13 of automobile, its technical solution be by water inlet manifold 1, water inlet pipe 2, automatically controlled speed governing valve 3,
Liquid cooling plate 4, exit branch 5, thermocouple 6, outfall sewer 7, battery cell 8, radiator 9, cooling water tank 10, constant pressure pump 11, plus
Heat coil 12, electronic control unit ECU 13, controlling switch 14 form；
The liquid cooling plate 4 is by liquid cooling plate housing 4-4, liquid cooling plate intake tunnel 4-1, liquid cooling plate Vertical Channel 4-2 and liquid
Cold plate exhalant canal 4-3 is formed, and all liquid cooling plate Vertical Channel 4-2 are of the same size, and are evenly distributed on liquid cooling plate housing
In 4-4, and it is connected with liquid cooling plate intake tunnel 4-1 and liquid cooling plate exhalant canal 4-3；In order to increase heat exchange area, each
Liquid cooling plate Vertical Channel 4-2 internal chamber walls are uniformly distributed fin along flow direction, and liquid cooling plate is made from a material that be thermally conductive；
In each 8 both ends of the surface of battery cell of equipped automobile power cell group, close installation liquid cooling plate 4 is formed respectively
Assembly is conducted in battery pack temperature control, is bonded between liquid cooling plate and battery cell by heat conductive silica gel；Passed in composition battery pack temperature control
Lead on the intake tunnel 4-1 mouths of each liquid cooling plate 4 of assembly, be connected by water inlet pipe 2 with water inlet manifold 1, and
Automatically controlled speed governing valve 3 is installed on the water inlet pipe 2 that each is connected with water inlet manifold 1；In composition battery pack temperature control conduction group
On the exhalant canal 4-3 mouths of each fit liquid cooling plate 4, it is connected by exit branch 5 with outfall sewer 7, and every
Thermocouple 6 is installed on one exit branch 5 being connected with outfall sewer 7；Connect the water inlet manifold 1 and level pressure of water inlet pipe 2
Pump 11 is connected, and the other end of constant pressure pump 11 is connected with cooling water tank 10, and the other end of cooling water tank 10 is connected with radiator 9
Connect, the other end of radiator 9 is connected with being connected the outfall sewer 7 of exit branch 5；In the water inlet being connected with water inlet pipe 2
Heating coil 12 is wound on the outer tube wall for the pipeline that manifold 1 is connected with constant pressure pump 11；Automatically controlled speed governing valve 3, thermocouple 6 and heating
Coil 12 and vehicle electronic control unit ECU 13 are connected to form temperature control loop, power battery pack by controlling switch 14 with
Vehicle electronic control unit ECU 13 is connected.
Embodiment one：
As shown in Figure 1, the present invention is applied on the automobile of battery pack that is made of 5 battery cells, by water inlet manifold 1,
Water inlet pipe 2, automatically controlled speed governing valve 3, liquid cooling plate 4, exit branch 5, thermocouple 6, outfall sewer 7, battery cell 8, radiator 9,
Cooling water tank 10, constant pressure pump 11, heating coil 12, electronic control unit ECU 13, controlling switch 14 form；
As shown in Figure 2, Figure 3, Figure 4, the liquid cooling plate 4 is cold by liquid cooling plate housing 4-4, liquid cooling plate intake tunnel 4-1, liquid
Plate Vertical Channel 4-2 and liquid cooling plate exhalant canal 4-3 is formed, and 5 liquid cooling plate Vertical Channel 4-2 are of the same size, uniformly
It is distributed in liquid cooling plate housing 4-4, and is connected with liquid cooling plate intake tunnel 4-1 and liquid cooling plate exhalant canal 4-3；In order to increase
Heat exchange area, fin is uniformly distributed in each liquid cooling plate Vertical Channel 4-2 internal chamber walls along flow direction；Liquid cooling plate is by aluminium alloy material
Material is made；
It is made of in equipped battery cell 8, battery cell 8B, battery cell 8C, battery cell 8D, battery cell 8E
Each battery cell both ends of the surface of automobile power cell group, difference close installation liquid cooling plate 4, liquid cooling plate 4B, liquid cooling plate 4C, liquid
Cold plate 4D, liquid cooling plate 4E, liquid cooling plate 4F, are bonded between liquid cooling plate and battery cell by heat conductive silica gel, are formed to 5 battery lists
The battery pack temperature control conduction assembly of body composition.Lead in the water inlet of each liquid cooling plate of composition battery pack temperature control conduction assembly
On road 4-1 mouths, it is connected by water inlet pipe 2 with water inlet manifold 1, and the water inlet being connected at each with water inlet manifold 1
Automatically controlled speed governing valve 3, automatically controlled speed governing valve 3B, automatically controlled speed governing valve 3C, automatically controlled speed governing valve 3D, automatically controlled speed governing valve are installed respectively on branch pipe 2
3E, automatically controlled speed governing valve 3F；On the exhalant canal 4-3 mouths of each liquid cooling plate 4 of composition battery pack temperature control conduction assembly, lead to
Cross exit branch 5 with outfall sewer 7 to be connected, and pacify respectively on the exit branch 5 that each is connected with outfall sewer 7
Fill thermocouple 6, thermocouple 6B, thermocouple 6C, thermocouple 6D, thermocouple 6E, thermocouple 6F；The water inlet for connecting water inlet pipe 2 is total
Pipe 1 is connected with constant pressure pump 11, and the other end of constant pressure pump 11 is connected with cooling water tank 10, and the other end of cooling water tank 10 is with dissipating
Hot device 9 is connected, and the other end of radiator 9 is connected with being connected the outfall sewer 7 of exit branch 5；It is connected with water inlet pipe 2
Heating coil 12 is wound on the outer tube wall for the pipeline that the water inlet manifold 1 connect is connected with constant pressure pump 11；It is automatically controlled speed governing valve 3, automatically controlled
Speed governing valve 3B, automatically controlled speed governing valve 3C, automatically controlled speed governing valve 3D, automatically controlled speed governing valve 3E, automatically controlled speed governing valve 3F and thermocouple 6, thermocouple
6B, thermocouple 6C, thermocouple 6D, thermocouple 6E, thermocouple 6F and heating coil 12 and vehicle electronic control unit ECU 13
Temperature control loop is connected to form, power battery pack is connected by controlling switch 14 with vehicle electronic control unit ECU 13.
The present invention is applied to the operational process of the automobile power cell group temperature control device of 5 battery cell compositions：
Automobile starting：Under low-temperature condition during automobile starting, start controlling switch 14 and connect power battery pack power supply, start
Electronic control unit ECU 13 controls heating coil 12 to be powered and 1 tube wall of water inlet manifold is heated.Start constant pressure pump 11 at the same time, will be cold
But liquid is transported in water inlet manifold 1 from cooling water tank 10 and heats, and passes through each water inlet pipe 2 and battery pack temperature control conduction combination
The intake tunnel mouth of each liquid cooling plate 4 of body enter liquid cooling plate 4, liquid cooling plate 4B, liquid cooling plate 4C, liquid cooling plate 4D, liquid cooling plate 4E,
Battery cell 8, battery cell 8B, battery cell 8C, battery cell 8D, battery cell 8E are heated in liquid cooling plate 4F.Thermocouple
6th, thermocouple 6B, thermocouple 6C, thermocouple 6D, thermocouple 6E, thermocouple 6F monitor fluid temperature in each exit branch 5, obtain
To corresponding battery cell 8, battery cell 8B, battery cell 8C, battery cell 8D, battery cell 8E temperature conditions, work as temperature
After degree reaches battery operating temperature scope, electronic control unit ECU 13 is fed back information to, controls corresponding automatically controlled speed governing valve 3
Or the valve of automatically controlled speed governing valve 3B or automatically controlled speed governing valves 3C or automatically controlled speed governing valves 3D or automatically controlled speed governing valves 3E or automatically controlled speed governing valves 3F
Close, stop the heating to corresponding battery cell, after all batteries monomer temperature all reaches operating temperature range, electronic control
Unit ECU 13 controls heating coil 12 to power off, and automobile thermal starting is completed.
Cooling temperature control process of the present invention to battery cell in car running process：In car running process, constant pressure pump
11 are transported to coolant in water inlet manifold 1 from cooling water tank 10, pass through each water inlet pipe 2 and battery pack temperature control conduction combination
The intake tunnel mouth of each liquid cooling plate 4 of body enters in liquid cooling plate 4,4B, 4C, 4D, 4E, 4F.Since battery cell persistently supplies
Electricity, battery cell heating temp rise, under action of thermal difference, by heat exchange pattern by heat focus on liquid cooling plate 4,4B, 4C,
On 4D, 4E, 4F, passage flowing of the coolant in liquid cooling plate, heat is transmitted to coolant, by thermal convection coolant by heat
Amount taken out of along exit branch 5, then by outfall sewer 7 enter radiator 9 cool down after, return in cooling water tank 10, coolant exists
Stored in cooling water tank 10, then water inlet manifold 1 is transported to by constant pressure pump 11, pass through each water inlet pipe 2 and battery pack temperature control
The intake tunnel mouth for conducting each liquid cooling plate 4 of assembly enters in each liquid cooling plate 4,4B, 4C, 4D, 4E, 4F, and formation follows
Ring cools down.Thermocouple 6,6B, 6C, 6D, 6E, 6F monitor fluid temperature in each exit branch 5, when temperature has fluctuation, will believe
Breath feeds back to electronic control unit ECU 13, and electronic control unit ECU 13 is installed on corresponding water inlet pipe 2 by control
Automatically controlled speed governing valve 3 or the valve of 3B or 3C or 3D or 3E or 3F carry out control valve switch size, so as to control into liquid cooling plate 4
Or in 4B or 4C or 4D or 4E or 4F coolant flow, to adjust the temperature between each battery cell of battery pack, make each
Battery cell temperature maintains optimum working temperature state always, and whole battery pack temperature distributing homogeneity is also improved.
Embodiment two：
As shown in fig. 6, the present invention is applied on the automobile of battery pack that is made of 4 battery cells, by water inlet manifold 1,
Water inlet pipe 2, automatically controlled speed governing valve 3, liquid cooling plate 4, exit branch 5, thermocouple 6, outfall sewer 7, battery cell 8, radiator 9,
Cooling water tank 10, constant pressure pump 11, heating coil 12, electronic control unit ECU 13, controlling switch 14 form；
As shown in Figure 2, Figure 3, Figure 4, the liquid cooling plate 4 is cold by liquid cooling plate housing 4-4, liquid cooling plate intake tunnel 4-1, liquid
Plate Vertical Channel 4-2 and liquid cooling plate exhalant canal 4-3 is formed, and 5 liquid cooling plate Vertical Channel 4-2 are of the same size, uniformly
It is distributed in liquid cooling plate housing 4-4, and is connected with liquid cooling plate intake tunnel 4-1 and liquid cooling plate exhalant canal 4-3；In order to increase
Heat exchange area, fin is uniformly distributed in each liquid cooling plate Vertical Channel 4-2 internal chamber walls along flow direction；Liquid cooling plate is by aluminium alloy material
Material is made；
In the equipped automobile power being made of battery cell 8, battery cell 8B, battery cell 8C, battery cell 8D electricity
Each battery cell both ends of the surface of pond group, difference close installation liquid cooling plate 4, liquid cooling plate 4B, liquid cooling plate 4C, liquid cooling plate 4D, liquid
Cold plate 4E, is bonded between liquid cooling plate and battery cell by heat conductive silica gel, forms the battery pack temperature control to 4 battery cell compositions
Conduct assembly.On the intake tunnel 4-1 mouths of each liquid cooling plate of composition battery pack temperature control conduction assembly, pass through water inlet
Branch pipe 2 is connected with water inlet manifold 1, and installs respectively on the water inlet pipe 2 that each is connected with water inlet manifold 1 automatically controlled
Speed governing valve 3,3B, 3C, 3D, 3E；In 4-3 mouthfuls of the exhalant canal of each liquid cooling plate 4 of composition battery pack temperature control conduction assembly
On, it is connected by exit branch 5 with outfall sewer 7, and on the exit branch 5 that each is connected with outfall sewer 7
Thermocouple 6,6B, 6C, 6D, 6E are installed respectively；The water inlet manifold 1 of connection water inlet pipe 2 is connected with constant pressure pump 11, constant pressure pump 11
The other end be connected with cooling water tank 10, the other end of cooling water tank 10 is connected with radiator 9, the other end of radiator 9
It is connected with the outfall sewer 7 for being connected exit branch 5；It is connected in the water inlet manifold 1 being connected with water inlet pipe 2 with constant pressure pump 11
Heating coil 12 is wound on the outer tube wall of the pipeline connect；Automatically controlled speed governing valve 3,3B, 3C, 3D, 3E and thermocouple 6,6B, 6C, 6D, 6E
And heating coil 12 and vehicle electronic control unit ECU 13 is connected to form temperature control loop, power battery pack passes through control
Switch 14 is connected with vehicle electronic control unit ECU 13.
The present invention is applied to the operational process of the automobile power cell group temperature control device of 4 battery cell compositions：
Automobile starting：Under low-temperature condition during automobile starting, start controlling switch 14 and connect power battery pack power supply, start
Electronic control unit ECU 13 controls heating coil 12 to be powered and 1 tube wall of water inlet manifold is heated.Start constant pressure pump 11 at the same time, will be cold
But liquid is transported in water inlet manifold 1 from cooling water tank 10 and heats, and passes through each water inlet pipe 2 and battery pack temperature control conduction combination
The intake tunnel mouth of each liquid cooling plate 4 of body enters liquid cooling plate 4, liquid cooling plate 4B, liquid cooling plate 4C, liquid cooling plate 4D, liquid cooling plate 4E
In to battery cell 8, battery cell 8B, battery cell 8C, battery cell 8D heat.Thermocouple 6, thermocouple 6B, thermocouple 6C,
Thermocouple 6D, thermocouple 6E monitor fluid temperature in each exit branch 5, obtain corresponding battery cell 8, battery cell 8B,
The temperature conditions of battery cell 8C, battery cell 8D, after temperature reaches battery operating temperature scope, feed back information to electronics
Control unit ECU 13, controls corresponding automatically controlled speed governing valve 3 or automatically controlled speed governing valve 3B or automatically controlled speed governing valves 3C or automatically controlled speed governing valves
The valve of 3D or automatically controlled speed governing valves 3E is closed, and stops the heating to corresponding battery cell, all batteries monomer temperature all reaches
After operating temperature range, electronic control unit ECU 13 controls heating coil 12 to power off, and automobile thermal starting is completed.
Cooling temperature control process of the present invention to battery cell in car running process：In car running process, constant pressure pump
11 are transported to coolant in water inlet manifold 1 from cooling water tank 10, pass through each water inlet pipe 2 and battery pack temperature control conduction combination
The intake tunnel mouth of each liquid cooling plate 4 of body enters in liquid cooling plate 4,4B, 4C, 4D, 4E.Due to battery cell continued power,
Battery cell heating temp rise, under action of thermal difference, by heat exchange pattern by heat focus on liquid cooling plate 4,4B, 4C, 4D,
On 4E, passage flowing of the coolant in liquid cooling plate, heat is transmitted to coolant, is gone out heat edge by thermal convection coolant
Water branch pipe 5 is taken out of, then by outfall sewer 7 enter radiator 9 cool down after, return in cooling water tank 10, coolant is in cooling water
Stored in case 10, then water inlet manifold 1 is transported to by constant pressure pump 11, pass through each water inlet pipe 2 and battery pack temperature control conduction group
The intake tunnel mouth of each fit liquid cooling plate 4 enters in each liquid cooling plate 4,4B, 4C, 4D, 4E, forms circulating cooling.Heat
Galvanic couple 6,6B, 6C, 6D, 6E monitor fluid temperature in each exit branch 5, and when temperature has fluctuation, information is fed back to electronics
Control unit ECU 13, electronic control unit ECU 13 are by controlling the automatically controlled speed governing valve 3 being installed on corresponding water inlet pipe 2
Or the valve of 3B or 3C or 3D or 3E carrys out control valve switch size, so as to control into liquid cooling plate 4 or 4B or 4C or 4D or 4E
The flow of middle coolant, to adjust the temperature between each battery cell of battery pack, makes each battery cell temperature maintain always
In optimum working temperature state, whole battery pack temperature distributing homogeneity is also improved.
Claims (3)
1. a kind of automobile power cell group temperature control device based on liquid medium, is combined with the battery cell of automobile power cell group
It is connected on automobile, and with the ECU of automobile, it is characterized in that cold by water inlet manifold, water inlet pipe, automatically controlled speed governing valve, liquid
Plate, exit branch, thermocouple, outfall sewer, battery cell, radiator, cooling water tank, constant pressure pump, heating coil, electronic control
Unit, controlling switch composition；
The liquid cooling plate is by liquid cooling plate housing, liquid cooling plate intake tunnel, liquid cooling plate Vertical Channel and liquid cooling plate exhalant canal structure
Into, liquid cooling plate Vertical Channel is evenly distributed in liquid cooling plate housing, and with liquid cooling plate intake tunnel and liquid cooling plate exhalant canal phase
Connection；
In each battery cell both ends of the surface of equipped automobile power cell group, difference close installation liquid cooling plate forms battery pack
Assembly is conducted in temperature control, is bonded between liquid cooling plate and battery cell by heat conductive silica gel；In composition battery pack temperature control conduction combination
On the intake tunnel mouth of each liquid cooling plate of body, be connected by water inlet pipe with water inlet manifold, and each with into
Automatically controlled speed governing valve is installed respectively on the water inlet pipe that supply mains is connected；In each of composition battery pack temperature control conduction assembly
On the exhalant canal mouth of liquid cooling plate, it is connected by exit branch with outfall sewer, and be connected at each with outfall sewer
Thermocouple is installed respectively on the exit branch connect；Connection water inlet pipe water inlet manifold be connected with constant pressure pump, constant pressure pump it is another
One end is connected with cooling water tank, and the other end of cooling water tank is connected with radiator, and the other end of radiator is with being connected water outlet
The outfall sewer of branch pipe is connected；In the outer tube wall for the pipeline that the water inlet manifold being connected with water inlet pipe is connected with constant pressure pump
Upper winding heating coil；Automatically controlled speed governing valve, thermocouple and heating coil and vehicle electronic control unit ECU are connected to form temperature control
Circuit processed；Power battery pack is connected by controlling switch with vehicle electronic control unit ECU.
A kind of 2. automobile power cell group temperature control device based on liquid medium according to claim 1, it is characterized in that institute
The liquid cooling plate Vertical Channel stated, is preferably uniformly distributed fin in its internal chamber wall along flow direction.
A kind of 3. automobile power cell group temperature control device based on liquid medium according to claim 1, it is characterized in that institute
The liquid cooling plate stated is made from a material that be thermally conductive.
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| CN201711432371.7A CN107946696A (en) | 2017-12-26 | 2017-12-26 | A kind of automobile power cell group temperature control device based on liquid medium |
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| CN108682921A (en) * | 2018-07-02 | 2018-10-19 | 山东大学 | A kind of batteries of electric automobile heat management system based on phase-change material soaking and heat-storage technology |
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| CN110380152A (en) * | 2019-06-17 | 2019-10-25 | 浙江零跑科技有限公司 | A kind of novel battery thermal management module and its control method |
| CN112310491A (en) * | 2019-07-24 | 2021-02-02 | 中国科学院广州能源研究所 | Lithium battery thermal-safety management system and management and control method |
| CN111048869B (en) * | 2019-12-28 | 2022-06-21 | 东莞理工学院 | Lithium battery heat dissipation and heat preservation system |
| CN111048869A (en) * | 2019-12-28 | 2020-04-21 | 东莞理工学院 | Lithium battery heat dissipation and heat preservation system |
| CN112206115A (en) * | 2020-08-27 | 2021-01-12 | 浙江大学 | Medical intelligent ward round car capable of continuously and stably supplying power |
| CN112687984A (en) * | 2020-12-29 | 2021-04-20 | 东风汽车集团有限公司 | Efficient battery thermal management system and method |
| CN113097605A (en) * | 2021-03-31 | 2021-07-09 | 阳光三星(合肥)储能电源有限公司 | Battery energy storage system |
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