CN118970269A - Battery thermal management device and vehicle - Google Patents
Battery thermal management device and vehicle Download PDFInfo
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- CN118970269A CN118970269A CN202410927038.7A CN202410927038A CN118970269A CN 118970269 A CN118970269 A CN 118970269A CN 202410927038 A CN202410927038 A CN 202410927038A CN 118970269 A CN118970269 A CN 118970269A
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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
- H01M10/62—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
- H01M10/65—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
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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
- H01M10/6561—Gases
- H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
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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
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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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- 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
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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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
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
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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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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a battery thermal management device and a vehicle, which relate to the technical field of battery thermal management, the device comprises a refrigerant circulation pipeline and a liquid medium circulation pipeline, refrigerant channels of a compressor, a condenser, an expansion valve and a heat exchanger are sequentially arranged on the refrigerant circulation pipeline, the liquid medium circulation pipeline comprises a liquid inlet pipe, a liquid outlet pipe, a first branch pipe and a second branch pipe, wherein the liquid inlet pipe is selectively communicated with the first branch pipe or the second branch pipe, a liquid medium channel of the heat exchanger is arranged on the first branch pipe, the heat radiator is arranged on the second branch pipe, the heater is arranged on the liquid outlet pipe, and the fan and the heat radiator are respectively arranged on two sides of the condenser. The battery thermal management device integrates multiple functions of strong refrigeration, heating, natural refrigeration and the like, and is suitable for different working environments; when the external environment temperature is low, the radiator and the fan can be used for refrigerating the liquid medium by utilizing the air with low external temperature, so that the energy consumption is greatly reduced, and the use cost is reduced.
Description
Technical Field
The invention relates to the technical field of battery thermal management, in particular to a battery thermal management device and a vehicle.
Background
The power battery is used as a key energy storage device of the electric vehicle, the charge and discharge efficiency and the like of the power battery are greatly affected by temperature, and if the working temperature of the battery is too low, the capacity of the battery is reduced, and the charge and discharge are slow; if the battery operating temperature is too high, the battery capacity is reduced, the service life is reduced, and even thermal runaway can occur to cause explosion fire. Therefore, thermal management equipment for battery systems is critical.
In the related art, the refrigeration of the battery is usually realized by adopting a compressor refrigeration system, but the refrigeration mode is single, cannot be adaptively adjusted according to different environment temperatures, and has high energy consumption.
Disclosure of Invention
The invention solves the technical problems that the existing battery thermal management device has single refrigeration mode and higher energy consumption.
In order to solve the above problems, in one aspect, the present invention provides a battery thermal management device, including a compressor, a condenser, an expansion valve, a heat exchanger, a liquid pump, a radiator, a fan, a heater, a refrigerant circulation line, and a liquid medium circulation line;
The refrigerant channels of the compressor, the condenser, the expansion valve and the heat exchanger are sequentially arranged on the refrigerant circulation pipeline;
The liquid medium circulation pipeline comprises a liquid inlet pipe, a liquid outlet pipe, a first branch pipe and a second branch pipe, wherein the first branch pipe and the second branch pipe are connected between the liquid inlet pipe and the liquid outlet pipe and are arranged in parallel, the liquid inlet pipe is selectively communicated with the first branch pipe or the second branch pipe, the liquid pump is arranged on the liquid inlet pipe, a liquid medium channel of the heat exchanger is arranged on the first branch pipe, the heat radiator is arranged on the second branch pipe, and the heater is arranged on the liquid outlet pipe;
The fan is located one side of the condenser, and the radiator is located the other side of the condenser.
Optionally, the battery thermal management device further comprises a housing, wherein the housing comprises a bottom plate and four side plates surrounding four sides of the bottom plate, the bottom plate and the four side plates form a containing space, and the compressor, the condenser, the expansion valve, the heat exchanger, the liquid pump, the radiator and the heater are all arranged in the containing space;
The fan is arranged on one side plate, and the fan, the condenser and the radiator are arranged at intervals in parallel in sequence.
Optionally, a plurality of meshes are arranged on all three side plates except the side plate provided with the fan.
Optionally, one end of the liquid inlet pipe far away from the first branch pipe extends from the accommodating space to the outside of the accommodating space and is fixedly arranged on one side plate; one end of the liquid outlet pipe, which is far away from the first branch pipe, extends from the inside of the accommodating space to the outside of the accommodating space and is fixedly arranged on one side plate.
Optionally, the connection parts of the liquid inlet pipe, the first branch pipe and the second branch pipe are provided with electronic three-way valves, and the electronic three-way valves are configured to: and the liquid inlet pipe is communicated with the first branch pipe, or the liquid inlet pipe is communicated with the second branch pipe.
Optionally, pressure sensors are arranged at the inlet and the outlet of the compressor.
Optionally, the expansion valve has inlet, liquid outlet, balance pipe interface and breathe in the interface, the inlet with the export of condenser corresponds the intercommunication, the liquid outlet with the entry of the refrigerant passageway of heat exchanger corresponds the intercommunication, balance pipe interface with the export of the refrigerant passageway of heat exchanger corresponds the intercommunication, breathe in the interface with the entry of compressor corresponds the intercommunication.
Optionally, the condenser is a microchannel condenser; and/or the number of the groups of groups,
The heat exchanger is a plate heat exchanger; and/or the number of the groups of groups,
The radiator is a fin radiator; and/or the number of the groups of groups,
The fan is a speed regulating fan; and/or the number of the groups of groups,
The heater is an electric heater.
Optionally, the battery thermal management device further comprises a control box and a temperature sensor, wherein the temperature sensor is used for detecting the temperature of the external environment, and the compressor, the liquid pump, the fan, the heater and the temperature sensor are all electrically connected with the control box.
On the other hand, the invention also provides a vehicle, which comprises the battery thermal management device.
The battery thermal management device and the vehicle integrate multiple functions of strong refrigeration, heating, natural refrigeration and the like, and are suitable for different working environments. When the external environment temperature is low but the battery system of the vehicle has a cooling requirement, the working of the compressor refrigerating system can be stopped, and the radiator and the fan are used for refrigerating the liquid medium by utilizing the air with low external temperature, so that the battery system is cooled, the energy consumption is greatly reduced, and the use cost is reduced; meanwhile, the radiator and the fan are respectively arranged on two sides of the condenser, so that the radiator and the condenser can share the same fan, an additional fan is not required to be arranged for the radiator, the production cost is reduced, the whole structure of the device is simple and compact, and the miniaturization design of the heat management device is facilitated.
Drawings
Fig. 1 is a schematic view illustrating a structure of a battery thermal management device according to an embodiment of the invention;
FIG. 2 is a schematic view of the battery thermal management device of FIG. 1 in another orientation;
FIG. 3 is a schematic top view of the battery thermal management device of FIG. 1;
FIG. 4 is a schematic view of the internal structure of a housing of the thermal management device of FIG. 1;
FIG. 5 is a schematic view of a part of the battery thermal management device of FIG. 1;
Fig. 6 is a schematic view of another partial structure of the battery thermal management device of fig. 1.
Reference numerals illustrate:
10-a compressor; 11-a pressure sensor; a 20-condenser; 30-an expansion valve; 40-heat exchanger; 50-liquid pump; 60-a heat sink; 70-a fan; 80-a heater; 90-refrigerant circulation pipes; 100-a liquid medium circulation line; 101-a liquid inlet pipe; 1011—liquid inlet port; 102-a liquid outlet pipe; 1021-a liquid outlet port; 103-a first branch; 104-a second branch; 110-a housing; 111-a bottom plate; 112-side plates; 112 a-front side panel; 112 b-rear side panel; 112 c-left side panel; 112 d-right side plate; 1121-mesh; 120-control box; 130-a temperature sensor; 140-electronic three-way valve.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It should be noted that the description as it relates to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implying an indication of the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. The terms "upper," "lower," "front," "rear," "left," "right," and the like refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description and simplicity of description, and do not necessarily indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The battery thermal management device in the prior art has the problems that the refrigeration mode is single, the device cannot be adaptively adjusted according to different environmental temperatures, and the energy consumption is high.
Referring to fig. 1 to 6, in one aspect, the present invention provides a battery thermal management device, which includes a compressor 10, a condenser 20, an expansion valve 30, a heat exchanger 40, a liquid pump 50, a radiator 60, a fan 70, a heater 80, a refrigerant circulation line 90, and a liquid medium circulation line 100.
Wherein, the refrigerant channels of the compressor 10, the condenser 20, the expansion valve 30 and the heat exchanger 40 are sequentially arranged on the refrigerant circulation pipeline 90; the liquid medium circulation pipeline 100 comprises a liquid inlet pipe 101, a liquid outlet pipe 102, a first branch pipe 103 and a second branch pipe 104, wherein the first branch pipe 103 and the second branch pipe 104 are connected between the liquid inlet pipe 101 and the liquid outlet pipe 102 and are arranged in parallel, the liquid inlet pipe 101 is selectively communicated with the first branch pipe 103 or the second branch pipe 104, the liquid pump 50 is arranged on the liquid inlet pipe 101, a liquid medium channel of the heat exchanger 40 is arranged on the first branch pipe 103, the radiator 60 is arranged on the second branch pipe 104, and the heater 80 is arranged on the liquid outlet pipe 102; the blower 70 is located at one side of the condenser 20, and the radiator 60 is located at the other side of the condenser 20.
The battery thermal management device is used for controlling the temperature of a battery system of a vehicle, and a liquid medium with proper temperature is input into the battery system by utilizing a pipeline, so that the liquid medium can generate heat exchange with the battery system to refrigerate or heat the battery, so that the battery works in an optimal temperature range, the service life and the energy storage capacity of the battery are further prolonged, and the working stability of the battery system is enhanced.
Specifically, referring to fig. 5, the refrigerant circulation line 90 is used for carrying and flowing the refrigerant, and the refrigerant channels of the compressor 10, the condenser 20, the expansion valve 30 and the heat exchanger 40 are sequentially disposed on the refrigerant circulation line 90 to form a refrigerant circulation loop. The heat exchanger 40 has a refrigerant channel through which a refrigerant can pass and a liquid medium channel through which a liquid medium can pass, and the refrigerant and the liquid medium exchange heat in the process of flowing through the heat exchanger 40. The flow direction of the refrigerant flowing through each component is as follows: compressor 10→condensation device 20. Fwdarw. Expansion valve 30 → heat exchanger 40 → compressor 10. The compressor 10 is used for compressing a low-pressure low-temperature gaseous refrigerant into a high-pressure high-temperature gaseous refrigerant; the high-pressure high-temperature gaseous refrigerant flows into the condenser 20, exchanges heat with the outside air or water in the condenser 20, gives off heat, and is condensed into a high-pressure liquid refrigerant; the high-pressure liquid refrigerant is throttled and depressurized by an expansion valve 30 to become a low-pressure low-temperature liquid refrigerant; the low-pressure low-temperature liquid refrigerant enters a refrigerant channel of the heat exchanger 40, absorbs heat of the liquid medium and evaporates into a low-pressure low-temperature gaseous refrigerant; the low-pressure low-temperature gaseous refrigerant is returned to the compressor 10 to complete one cycle. The cycle is repeated, thereby continuously transferring heat and realizing the continuous refrigeration effect of the liquid medium.
Referring to fig. 6, a liquid medium circulation line 100 is used for carrying flow of a liquid medium, and is connected to a battery system of a vehicle through a line. The liquid medium circulation pipeline 100 comprises a liquid inlet pipe 101, a liquid outlet pipe 102, a first branch pipe 103 and a second branch pipe 104, wherein the liquid inlet pipe 101 is connected with a liquid medium outlet of the battery system, the liquid outlet pipe 102 is connected with a liquid medium inlet of the battery system, the first branch pipe 103 and the second branch pipe 104 are connected between the liquid inlet pipe 101 and the liquid outlet pipe 102, and the liquid inlet pipe 101 is selectively communicated with the first branch pipe 103 or the second branch pipe 104. When the liquid inlet pipe 101 is communicated with the first branch pipe 103, the liquid pump 50 is arranged on the liquid inlet pipe 101, the liquid medium channel of the heat exchanger 40 is arranged on the first branch pipe 103, the heater 80 is arranged on the liquid outlet pipe 102, a first liquid medium circulation loop is formed, and the flowing direction of the liquid medium flowing through each component is as follows: liquid pump 50 → heat exchanger 40 → heater 80 → battery system → liquid pump 50. When the liquid inlet pipe 101 is communicated with the second branch pipe 104, the radiator 60 is arranged on the second branch pipe 104 to form a second liquid medium circulation loop, and the flowing direction of the liquid medium flowing through each component is as follows: liquid pump 50 → radiator 60 → heater 80 → battery system → liquid pump 50. The liquid pump 50 is used for providing power for the flow of the liquid medium, the radiator 60 is used for exchanging heat with the outside air to refrigerate the liquid medium, and the heater 80 is used for heating the liquid medium.
It should be noted that, the heating function of the heater 80 to the liquid medium is controllable, and when the battery thermal management device does not need the heating function of the heater 80, the heater 80 does not heat the liquid medium flowing through, and only the liquid medium flows through the heater 80 to realize circulation; when the heating function of the heater 80 is required, the heater 80 circulates the liquid medium while heating the heating medium flowing therethrough.
In this embodiment, the fan 70 is located at one side of the condenser 20, the radiator 60 is located at the other side of the condenser 20, and the air outlet direction of the fan 70 faces the condenser 20. On the one hand, in the refrigeration system of the compressor 10, the fan 70 can blow air to the condenser 20, so as to discharge the heat of the high-temperature and high-pressure refrigerant generated in the condenser 20, and promote the refrigerant to change from a gaseous state to a liquid state, thereby achieving the purpose of cooling the system; on the other hand, when the external environment temperature is low, the fan 70 rotates to form a cold air flow blowing to the radiator 60, a flow channel for flowing the liquid medium is formed in the radiator 60, and the cold air flow exchanges heat with the liquid medium in the flow channel to realize refrigeration of the liquid medium. By arranging the radiator 60 on the other side of the condenser 20, the radiator 60 and the condenser 20 can share the same fan 70, and an additional fan 70 is not required to be arranged for the radiator 60, so that the integrated design of the battery thermal management device is facilitated, and the battery thermal management device is smaller in size and lighter in weight.
The battery thermal management device has three working modes, and under different external environment temperature conditions, the corresponding working modes are as follows:
When the external environment temperature is higher and the battery system has a cooling requirement, the battery thermal management device enters a strong refrigeration mode: the compressor 10 and the fan 70 are started, and the refrigerant circularly flows along the refrigerant circulation loop; the liquid inlet pipe 101 is communicated with the first branch pipe 103, the liquid pump 50 is started, the heater 80 is closed, and the liquid medium circularly flows along the first liquid medium circulation loop. The low-pressure low-temperature liquid refrigerant flows in the refrigerant channel of the heat exchanger 40, exchanges heat with the liquid medium flowing in the liquid medium channel of the heat exchanger 40, and enters the battery system through the heater 80 under the pressure supply of the liquid pump 50 after being refrigerated, at the moment, the heater 80 only plays a role in allowing the liquid medium to flow through, the low-temperature liquid medium exchanges heat with a battery of the battery system to cool the battery, and the liquid medium after absorbing the heat of the battery flows back to the liquid medium channel of the heat exchanger 40 through the liquid pump 50 to be cooled by the refrigerant, so that the continuous cooling of the battery system is realized.
When the external environment temperature is lower and the battery system has a heating requirement, the battery thermal management device enters a heating mode: the compressor 10 and the fan 70 are turned off, and the refrigerant does not flow; the liquid inlet pipe 101 is communicated with the first branch pipe 103, the liquid pump 50 is started, the heater 80 is started, and the liquid medium circularly flows along the first liquid medium circulation loop. Because the compressor 10 stops running, the temperature of the liquid medium is not affected by the refrigerant, the liquid medium is heated in the process of flowing through the heater 80 under the driving of the liquid pump 50 and then is conveyed into the battery system, the liquid medium with higher temperature exchanges heat with the battery of the battery system to heat the battery, and the liquid medium after absorbing heat by the battery flows back to the heater 80 through the liquid pump 50 and the heat exchanger 40 to be heated again, so that the continuous heating of the battery system is realized.
When the external environment temperature is lower and the battery system has a cooling requirement, the battery thermal management device enters a natural cooling mode: the compressor 10 is turned off, and the refrigerant does not flow; the liquid inlet pipe 101 is communicated with the second branch pipe 104, the liquid pump 50 is started, the fan 70 is started, the heater 80 is closed, and the liquid medium circularly flows along the second liquid medium circulation loop. The radiator 60 can cool the liquid medium by using air with lower external temperature through the fan 70, the cooled liquid medium enters the battery system after passing through the heater 80 under the driving of the liquid pump 50, at the moment, the heater 80 only plays a role of flowing through the liquid medium, the low-temperature liquid medium exchanges heat with the battery of the battery system to cool the battery, the liquid medium after absorbing the heat of the battery flows back into the radiator 60 through the liquid pump 50 to be cooled by the cold air flow, and thus, the continuous cooling of the battery system is realized.
It should be noted that, as shown in the operation mode of the above-mentioned thermal management device, the condenser 20 and the radiator 60 will not generate a cooling requirement at the same time, and when the air flow generated by the fan 70 is blown to the radiator 60 through the condenser 20, the condenser 20 will not affect the air flow temperature.
Preferably, the refrigerant may be a common refrigerant such as R22, R134a, R410A, etc., and the liquid medium may be water or a solvent such as ethanol, ethylene glycol, propylene glycol, etc., which is not limited herein.
The battery thermal management device provided by the embodiment of the invention integrates multiple functions of strong refrigeration, heating, natural refrigeration and the like, is suitable for different working environments, and can greatly reduce energy consumption and use cost in a natural refrigeration working mode when the temperature of the external environment is low but the battery system has a cooling requirement; meanwhile, the radiator 60 and the condenser 20 can share the same fan 70, and an additional fan 70 is not required to be arranged for the radiator 60, so that the production cost is reduced, the device is simple and compact in structure, and the miniaturization design of the battery thermal management device is facilitated.
Optionally, referring to fig. 1 and 2, the battery thermal management device of the present embodiment further includes a housing 110, where the housing 110 includes a bottom plate 111 and four side plates 112 surrounding four sides of the bottom plate 111, the bottom plate 111 and the four side plates 112 form a containing space, and the compressor 10, the condenser 20, the expansion valve 30, the heat exchanger 40, the liquid pump 50, the radiator 60 and the heater 80 are all disposed in the containing space; the fan 70 is disposed on a side plate 112, and the fan 70, the condenser 20 and the radiator 60 are sequentially disposed in parallel and spaced apart. Through all locating each part in the accommodation space, be favorable to battery thermal management device's integrated setting for battery thermal management device occupation space is little, and transportation, arrangement convenience, can put promptly and use promptly. Through arranging the fan 70, the condenser 20 and the radiator 60 at intervals in parallel in sequence, the air flow loss caused by blocking of the condenser 20 can be reduced, the air flow formed by the fan 70 can pass through the condenser 20 at a better air flow angle to cool the radiator 60, and the cooling effect of the radiator 60 is improved.
Optionally, a plurality of mesh holes 1121 are provided on all three side plates 112 except the side plate 112 provided with the blower 70. For convenience of description, in the illustrated embodiment, the side plate 112 provided with the fan 70 is defined as a front side plate 112a, the side plate 112 disposed opposite to the front side plate 112a is defined as a rear side plate 112b, and two side plates 112 connecting the front and rear side plates 112b are respectively a left side plate 112c and a right side plate 112d. The fan 70 is disposed on the front side plate 112a, and the rear side plate 112b, the left side plate 112c and the right side plate 112d are respectively provided with a plurality of meshes 1121, so that the air flow blown into the accommodating space from the front side plate 112a can be blown out from the meshes 1121 of the rear side plate 112b, the left side plate 112c and the right side plate 112d, and the components located in each direction in the accommodating space can be purged by the air flow, so that the heat generated by the operation of the compressor 10, the liquid pump 50, the heater 80 and part of electronic components is further taken away, the temperature in the accommodating space is reduced, and the working efficiency of each component is improved.
Optionally, one end of the liquid inlet pipe 101 far away from the first branch pipe 103 extends from the inside of the accommodating space to the outside of the accommodating space, and is fixedly arranged on a side plate 112; one end of the liquid outlet pipe 102, which is far away from the first branch pipe 103, extends from the inside of the accommodating space to the outside of the accommodating space, and is fixedly arranged on a side plate 112. The one end that first branch pipe 103 was kept away from to intake pipe 101 forms into intake port 1011, and the one end that first branch pipe 103 was kept away from to drain pipe 102 forms into outlet port 1021, through all extending intake port 1011 and outlet port 1021 outside the accommodation space and set firmly on curb plate 112, is favorable to intake port 1011 and outlet port 1021 to be connected with battery system through the pipeline, only need during the use with the pipeline directly insert intake port 1011 and outlet port 1021 on curb plate 112 can, the convenience is installed and removed, improves battery thermal management device's flexibility of use.
Optionally, the battery thermal management device according to the embodiment of the present invention further includes a control box 120 and a temperature sensor 130, where the control box 120 may be fixedly disposed in the accommodating space, for example, disposed on the bottom plate 111 by bolts; the temperature sensor 130 may be disposed on the housing for detecting an external ambient temperature. Specifically, the temperature sensor 130 may be disposed on a side of the rear side plate 112b facing the accommodating space, so that the housing 110 may form a certain protection for the temperature sensor 130, and the temperature detected by the temperature sensor 130 is less different from the ambient temperature outside the housing 110 due to the plurality of meshes 1121 disposed on the rear side plate 112 b. The control box 120 may be electrically connected to each electrical component in the accommodating space, and is configured to adjust the working mode of the battery thermal management device according to the external environment temperature detected by the temperature sensor 130 and the temperature increasing and decreasing requirement of the energy storage device, and control the corresponding component in each working mode to work.
Optionally, the connection parts of the liquid inlet pipe 101, the first branch pipe 103 and the second branch pipe 104 are provided with an electronic three-way valve 140, the electronic three-way valve 140 is provided with three interfaces, the three interfaces are respectively connected with the liquid inlet pipe 101, the first branch pipe 103 and the second branch pipe 104 correspondingly, and the electronic three-way valve 140 is configured to: communicating the liquid inlet pipe 101 with the first branch pipe 103, or communicating the liquid inlet pipe 101 with the second branch pipe 104. Specifically, the electronic three-way valve 140 may be electrically connected to the control box 120, and according to actual needs, the control box 120 may control the electronic three-way valve 140 to communicate with the liquid inlet pipe 101 and the first branch pipe 103 or communicate with the liquid inlet pipe 101 and the second branch pipe 104.
Optionally, pressure sensors 11 are provided at both the inlet and outlet of the compressor 10. The pressure sensor 11 is used for monitoring the pressure conditions of the inlet and the outlet of the compressor 10 in real time, so as to provide instant feedback of the operation state of the refrigerant circulation loop. The compressor 10 and the two pressure sensors 11 are electrically connected with the control box 120, and the electric control box can optimize the operation parameters of the compressor 10 according to the pressure at the inlet and the outlet of the pressure sensors 11, such as adjusting the compression ratio, controlling the flow of the refrigerant, etc., so as to improve the overall efficiency and performance of the compressor 10 and reduce the energy consumption; or, taking a shutdown measure in time when the pressure is abnormal to protect the compressor 10 and the entire battery thermal management device.
Alternatively, the expansion valve 30 may be an H-type expansion valve, which has a liquid inlet, a liquid outlet, a balance pipe interface, and an air intake interface, where the liquid inlet is correspondingly communicated with the outlet of the condenser 20, the liquid outlet is correspondingly communicated with the inlet of the refrigerant channel of the heat exchanger 40, the balance pipe interface is correspondingly communicated with the outlet of the refrigerant channel of the heat exchanger 40, and the air intake interface is correspondingly communicated with the inlet of the compressor 10. The high-pressure liquid refrigerant enters the expansion valve 30 from the liquid inlet to be throttled and depressurized, so that the low-pressure low-temperature liquid refrigerant flows into the refrigerant channels of the heat exchanger 40 from the liquid outlet, the balance pipe interface is used for balancing the pressure before and after the expansion valve 30, so that the valve can accurately regulate the refrigerant flow, and the air suction interface is used for sensing the air suction pressure of the compressor 10, thereby assisting in regulating the opening of the valve and ensuring that the refrigerant flow is in a proper range. By adopting the H-shaped expansion valve 30, the pressure balance of the refrigerant circulation loop and the accurate control of the refrigerant flow can be realized, and the efficiency and the stability of the refrigeration process are improved.
Alternatively, the condenser 20 may be a micro-channel condenser, which is more compact, lighter in weight, more efficient in heat exchange, and more reliable than conventional condensers, and is advantageous for miniaturization and compactness of the battery thermal management device.
Alternatively, the heat exchanger 40 may be a plate heat exchanger, which is compact, convenient to maintain, and efficient in heat transfer.
Optionally, the liquid pump 50 may be a water pump with stepless speed regulation function, the liquid pump 50 is electrically connected with the control box 120, and the control box 120 can precisely control the power of the liquid pump 50 according to the actual thermal management requirement, so as to control the flow rate of the liquid medium, thereby realizing the energy-saving effect.
Alternatively, the heat sink 60 may be a fin heat sink, which is compact, easy to install, low in noise, and efficient in heat exchange, facilitating sufficient cooling of the liquid medium.
Optionally, the fan 70 may be a heat dissipation fan capable of adopting stepless speed regulation, the fan 70 is electrically connected with the control box 120, and the control box 120 can precisely control the rotation speed of the fan 70 according to actual thermal management requirements, so as to achieve an energy-saving effect.
Optionally, the heater 80 may be an electric heater, which has rapid heating and high efficiency conversion rate, and is suitable for a battery thermal management device, the heater 80 may be electrically connected to the control box 120, and the control box 120 may control the start and stop of the electric heater and the heating power, so as to realize accurate control of the heating temperature of the liquid medium.
In the illustrated embodiment, the fans 70 are provided with two fans and are both fixedly arranged on the front side plate 112a, the condenser 20 is fixedly arranged on the bottom plate 111 and is close to the front side plate 112a, the radiator 60 is fixedly arranged on the bottom plate 111 and is positioned on the rear left side of the condenser 20, the compressor 10 is fixedly arranged on the bottom plate 111 and is positioned on the rear right side of the condenser 20, the liquid pump 50 is fixedly arranged on the bottom plate 111 and is positioned on the rear side of the radiator 60, the heat exchanger 40 is fixedly arranged on the left side plate 112c, the control box 120 is fixedly arranged on the right side plate 112d, the heater 80 is fixedly arranged on the rear side plate 112b, and the liquid inlet port 1011 and the liquid outlet port 1021 are both fixedly arranged on the left side plate 112 c. All the components and the shell 110 can be connected through bolts, all the components and the pipelines and all the pipelines can be connected through pipeline connectors such as pipe sleeves, hoops and the like, and the assembly and the disassembly are convenient; the battery thermal management device can realize three working modes of strong refrigeration, heating and natural refrigeration by arranging the positions among the components and the connecting pipelines, and has simple structure and convenient maintenance and installation; by selecting the model of the component, the miniaturization and the compactness of the battery thermal management device can be realized, the space is saved, and the cost is reduced. Of course, the present invention is not limited to specific installation positions of the components, and the positions of the components can be adjusted correspondingly to obtain the battery thermal management device with the required size according to practical needs, such as the placement space of the housing 110 or the limitations on the length, width and height of the housing 110.
On the other hand, the embodiment of the invention also provides a vehicle, which comprises the battery thermal management device of the embodiment. The vehicle may be a new energy electric vehicle having a battery system connected to a battery thermal management device by a conduit such that a liquid medium may flow across the surface of and exchange heat with a power battery within the battery system. Because the vehicle adopts all the technical schemes of the above embodiments, the vehicle has at least all the beneficial effects brought by the technical schemes of the above embodiments, and will not be described in detail herein.
Although the invention is disclosed above, the scope of the invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications will fall within the scope of the invention.
Claims (10)
1. The battery thermal management device is characterized by comprising a compressor (10), a condenser (20), an expansion valve (30), a heat exchanger (40), a liquid pump (50), a radiator (60), a fan (70), a heater (80), a refrigerant circulation pipeline (90) and a liquid medium circulation pipeline (100);
the refrigerant channels of the compressor (10), the condenser (20), the expansion valve (30) and the heat exchanger (40) are sequentially arranged on the refrigerant circulation pipeline (90);
The liquid medium circulation pipeline (100) comprises a liquid inlet pipe (101), a liquid outlet pipe (102), a first branch pipe (103) and a second branch pipe (104), wherein the first branch pipe (103) and the second branch pipe (104) are connected between the liquid inlet pipe (101) and the liquid outlet pipe (102) and are arranged in parallel, the liquid inlet pipe (101) is selectively communicated with the first branch pipe (103) or the second branch pipe (104), the liquid pump (50) is arranged on the liquid inlet pipe (101), a liquid medium channel of the heat exchanger (40) is arranged on the first branch pipe (103), the radiator (60) is arranged on the second branch pipe (104), and the heater (80) is arranged on the liquid outlet pipe (102);
the fan (70) is located at one side of the condenser (20), and the radiator (60) is located at the other side of the condenser (20).
2. The battery thermal management device according to claim 1, further comprising a housing (110), wherein the housing (110) comprises a bottom plate (111) and four side plates (112) surrounding four sides of the bottom plate (111), the bottom plate (111) and the four side plates (112) form a containing space, and the compressor (10), the condenser (20), the expansion valve (30), the heat exchanger (40), the liquid pump (50), the radiator (60) and the heater (80) are all arranged in the containing space;
The fan (70) is arranged on one side plate (112), and the fan (70), the condenser (20) and the radiator (60) are sequentially arranged at intervals in parallel.
3. The battery thermal management device according to claim 2, wherein a plurality of mesh holes (1121) are provided on each of the remaining three side plates (112) except for the side plate (112) provided with the blower (70).
4. The battery thermal management device according to claim 2, wherein an end of the liquid inlet pipe (101) away from the first branch pipe (103) extends from the inside of the accommodating space to the outside of the accommodating space, and is fixedly arranged on one side plate (112); one end of the liquid outlet pipe (102) far away from the first branch pipe (103) extends from the inside of the accommodating space to the outside of the accommodating space and is fixedly arranged on one side plate (112).
5. The battery thermal management device according to claim 1, wherein an electronic three-way valve (140) is provided at the junction of the liquid inlet pipe (101), the first branch pipe (103) and the second branch pipe (104), the electronic three-way valve (140) being configured to: -communicating the inlet pipe (101) with the first branch pipe (103), or-communicating the inlet pipe (101) with the second branch pipe (104).
6. Battery thermal management device according to claim 1, characterized in that the compressor (10) is provided with pressure sensors (11) both at the inlet and at the outlet.
7. The battery thermal management device according to claim 1, wherein the expansion valve (30) has a liquid inlet, a liquid outlet, a balance pipe interface and an air suction interface, the liquid inlet is correspondingly communicated with the outlet of the condenser (20), the liquid outlet is correspondingly communicated with the inlet of the refrigerant passage of the heat exchanger (40), the balance pipe interface is correspondingly communicated with the outlet of the refrigerant passage of the heat exchanger (40), and the air suction interface is correspondingly communicated with the inlet of the compressor (10).
8. The battery thermal management device of claim 1, wherein,
The condenser (20) is a microchannel condenser; and/or the number of the groups of groups,
The heat exchanger (40) is a plate heat exchanger; and/or the number of the groups of groups,
The heat sink (60) is a fin type heat sink; and/or the number of the groups of groups,
The fan (70) is a speed-regulating fan; and/or the number of the groups of groups,
The heater (80) is an electric heater.
9. The battery thermal management device of any one of claims 1-8, further comprising a control box (120) and a temperature sensor (130), wherein the temperature sensor (130) is configured to detect an external ambient temperature, and wherein the compressor (10), the liquid pump (50), the fan (70), the heater (80), and the temperature sensor (130) are electrically connected to the control box (120).
10. A vehicle comprising the battery thermal management device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202410927038.7A CN118970269A (en) | 2024-07-11 | 2024-07-11 | Battery thermal management device and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410927038.7A CN118970269A (en) | 2024-07-11 | 2024-07-11 | Battery thermal management device and vehicle |
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| CN202410927038.7A Pending CN118970269A (en) | 2024-07-11 | 2024-07-11 | Battery thermal management device and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119376510A (en) * | 2024-12-23 | 2025-01-28 | 宝德计算机系统股份有限公司 | A server with a novel heat dissipation device and a heat dissipation control method |
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| CN110854473A (en) * | 2019-12-19 | 2020-02-28 | 厦门松芝汽车空调有限公司 | Battery thermal management device |
| CN115000541A (en) * | 2022-06-28 | 2022-09-02 | 南方英特空调有限公司 | Thermal management system and method for energy storage container |
| CN117673564A (en) * | 2023-12-25 | 2024-03-08 | 深圳市科泰新能源车用空调技术有限公司 | Battery thermal management unit integrating electric drive heat dissipation |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110854473A (en) * | 2019-12-19 | 2020-02-28 | 厦门松芝汽车空调有限公司 | Battery thermal management device |
| CN115000541A (en) * | 2022-06-28 | 2022-09-02 | 南方英特空调有限公司 | Thermal management system and method for energy storage container |
| CN117673564A (en) * | 2023-12-25 | 2024-03-08 | 深圳市科泰新能源车用空调技术有限公司 | Battery thermal management unit integrating electric drive heat dissipation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119376510A (en) * | 2024-12-23 | 2025-01-28 | 宝德计算机系统股份有限公司 | A server with a novel heat dissipation device and a heat dissipation control method |
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