CN217334198U - Battery thermal management system and electric automobile - Google Patents
Battery thermal management system and electric automobile Download PDFInfo
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- CN217334198U CN217334198U CN202221032774.9U CN202221032774U CN217334198U CN 217334198 U CN217334198 U CN 217334198U CN 202221032774 U CN202221032774 U CN 202221032774U CN 217334198 U CN217334198 U CN 217334198U
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Abstract
The utility model relates to a battery thermal management system technical field especially relates to a battery thermal management system and electric automobile. The battery heat management system mainly comprises a battery pack, a driving device, an environmental temperature sensor, a controller, a normal-temperature refrigeration module, a low-temperature refrigeration module and a low-temperature heating module. Wherein, the battery pack is provided with a water inlet and a water outlet for the circulation of cooling liquid. One end of the driving device is communicated with the water inlet, the other end of the driving device is respectively and simultaneously communicated with the normal-temperature refrigerating module, the low-temperature refrigerating module and the low-temperature heating module, and the normal-temperature refrigerating module, the low-temperature refrigerating module and the low-temperature heating module are arranged in parallel. The environment temperature sensor is used for monitoring the environment temperature, and the controller is electrically connected with the environment temperature sensor, the driving device, the normal-temperature refrigerating module, the low-temperature refrigerating module and the low-temperature heating module. The structure is simple, the problem that the compressor cannot run for a long time in a low-temperature environment is solved, the energy consumption is reduced, the service life of the battery pack is prolonged, and the safety performance is improved.
Description
Technical Field
The utility model relates to a battery thermal management system technical field especially relates to a battery thermal management system and electric automobile.
Background
Along with the development of new energy vehicles, the energy density of batteries is improved, and a large amount of heat can be generated in the battery charging and discharging process, so that the phenomena of shortened service life of a battery pack, uneven internal temperature and increased thermal runaway risk are caused. In addition, the environmental temperature is lower in northern areas in winter, the chemical reaction rate in the battery is reduced, and the discharge rate of the battery is also reduced. A water cooling unit in the battery thermal management system is used as one of important parts of the battery thermal management system, and the refrigerating and heating requirements of the battery pack in different environments need to be met.
The refrigeration function of the battery thermal management system in the current market is to provide the circulating power of a refrigerant loop by compressing a refrigerant through a compressor and provide the circulating power of an antifreeze loop through a water pump. When the external environment temperature is low and the battery pack needs to be heated, the unit adopts a PTC heating mode, a loop of the refrigerant stops running, and the PTC is connected in series on the water path to start and heat the low-temperature cooling liquid in the loop of the battery pack, so that the heating function is realized.
The prior art has the following defects:
1. under the condition of low ambient temperature, the battery pack has low refrigeration requirement in the charging and discharging processes, if the compressor is started to provide the refrigeration capacity, the compressor can be started and stopped frequently, and the compressor is prone to failure for a long time;
2. under the condition that the environmental temperature of some high-energy density batteries is lower in winter (lower than-10 ℃), the temperature of a battery pack is higher in the charging and discharging processes, and the batteries still have refrigerating capacity requirements, but due to the technical limitation of a refrigerating compressor, when the environmental temperature is lower than-10 ℃, a plurality of compressors cannot operate in the environment for a long time, and if the compressors are forced to operate in a low-temperature environment for a long time, the compressors are easy to break down, and even function loss is caused.
3. The PTC heater is connected in series in the water path, so that the flow resistance of the water path is increased, and on the premise that the pump lift of the water pump is certain, the flow of the anti-freezing liquid in the water path is insufficient, so that the heating capacity of the battery thermal management system is reduced in a heating mode.
Therefore, it is desirable to design a battery thermal management system and an electric vehicle to solve the technical problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery thermal management system and electric automobile, its simple structure can solve the problem that the compressor can't effectively operate for a long time in low temperature environment, reduces battery thermal management system's energy consumption, prolongs the life of battery package, improves the security performance.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a battery thermal management system, include:
the battery pack is provided with a water inlet and a water outlet for circulating cooling liquid;
one end of the driving device is communicated with the water inlet, the other end of the driving device is simultaneously communicated with the normal-temperature refrigerating module, the low-temperature refrigerating module and the low-temperature heating module respectively, and the normal-temperature refrigerating module, the low-temperature refrigerating module and the low-temperature heating module are arranged in parallel; the outlet ends of the normal-temperature refrigerating module, the low-temperature refrigerating module and the low-temperature heating module are all communicated with the water outlet;
an ambient temperature sensor disposed on a housing of the battery thermal management system for monitoring an ambient temperature;
the controller is electrically connected with the ambient temperature sensor, the driving device, the normal-temperature refrigerating module, the low-temperature refrigerating module and the low-temperature heating module;
when the environment temperature sensor monitors that the environment temperature is a first preset temperature, the environment temperature sensor transmits a first preset temperature signal to the controller, and the controller controls the driving device and the normal temperature refrigeration module to start;
when the environment temperature sensor monitors that the environment temperature is a second preset temperature, the environment temperature sensor transmits a second preset temperature signal to the controller, and the controller controls the driving device and the low-temperature refrigeration module to start;
when the ambient temperature sensor monitors that the ambient temperature is the third preset temperature, the ambient temperature sensor transmits the third preset temperature signal to the controller, and the controller controls the driving device and the low-temperature heating module to be started.
As an optional technical scheme of the battery thermal management system, the normal-temperature refrigeration module comprises a condenser, a compressor and a heat exchanger which are sequentially connected, the condenser, the compressor and the heat exchanger form a closed loop for circulation of refrigerant, one end of the heat exchanger is communicated with the driving device, the other end of the heat exchanger is communicated with the water outlet, and the cooling liquid can flow from the driving device to the water outlet through the heat exchanger.
As an optional technical solution of the battery thermal management system, an expansion valve is disposed downstream of the condenser along a flow direction of the refrigerant.
As an optional technical scheme of the battery thermal management system, the low-temperature refrigeration module comprises a low-temperature water tank, one end of the low-temperature water tank is communicated with the driving device, and the other end of the low-temperature water tank is communicated with the water outlet.
As an optional technical solution of the battery thermal management system, the low-temperature refrigeration module further includes a first electromagnetic valve, and the first electromagnetic valve is disposed upstream of the low-temperature water tank in a flow direction of the cooling liquid.
As an optional technical scheme of the battery thermal management system, the low-temperature heating module comprises a PTC heater, one end of the PTC heater is communicated with the driving device, and the other end of the PTC heater is communicated with the water outlet.
As an optional technical solution of the battery thermal management system, the low temperature heating module further includes a second solenoid valve, and the second solenoid valve is disposed upstream of the PTC heater in a flow direction of the coolant.
As an optional technical scheme of the battery thermal management system, the battery thermal management system further comprises a condensation fan, the controller is electrically connected to the condensation fan, and when the ambient temperature sensor monitors that the ambient temperature is a first preset temperature or a second preset temperature, the controller controls the condensation fan to start.
As an optional technical scheme of the battery thermal management system, a water inlet temperature sensor is arranged on the water inlet, a water outlet temperature sensor is arranged on the water outlet, and the water inlet temperature sensor and the water outlet temperature sensor are electrically connected to the controller.
The utility model also provides an electric automobile, electric automobile includes above battery thermal management system.
The beneficial effects of the utility model reside in that:
the utility model provides a battery thermal management system, its simple structure heats the parallelly connected setting of module through with normal atmospheric temperature refrigeration module, low temperature refrigeration module and low temperature to reduce the flow resistance of battery thermal management system coolant liquid under various mode, promote the heat transfer ability of coolant liquid. In addition, the battery thermal management system can be suitable for high-temperature and high-cold environments, the working temperature range of the battery thermal management system is widened, and the flexible applicability is improved. When the battery is in a severe cold environment, the temperature of the environment is less than or equal to minus 10 ℃ below zero (minus 30 ℃), the cooling liquid enters the low-temperature water tank for heat exchange, the problem that the compressor cannot normally work in the severe cold environment is solved, the service life of the compressor is prolonged, the cost is saved, the purpose of saving the energy consumption of the battery thermal management system is achieved, and the energy efficiency ratio of the battery thermal management system is improved.
The utility model also provides an electric automobile, this electric automobile includes above battery thermal management system. The battery heat management system in the electric automobile can perform two modes of cooling and heating on the battery pack, meets the cooling and heating requirements under different environment temperatures such as high temperature, high cold and the like, and greatly improves the service life and safety performance of the electric automobile.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic view of a work flow of a battery thermal management system according to an embodiment of the present invention.
Reference numerals
100. A water inlet; 110. an inlet water temperature sensor; 200. a water outlet; 210. an effluent temperature sensor;
300. a drive device;
400. a normal temperature refrigeration module; 410. a condenser; 420. a compressor; 430. a heat exchanger; 440. an expansion valve; 450. a high voltage switch; 460. a low voltage switch;
500. a low temperature refrigeration module; 510. a low temperature water tank; 520. a first solenoid valve;
600. a low-temperature heating module; 610. a PTC heater; 620. a second solenoid valve;
700. an ambient temperature sensor; 800. and a condensing fan.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1, the present embodiment provides a battery thermal management system, which mainly includes a battery pack, a driving device 300, an ambient temperature sensor 700, a controller (not shown in the figure), a normal temperature cooling module 400, a low temperature cooling module 500, and a low temperature heating module 600. Wherein, the battery pack is provided with a water inlet 100 and a water outlet 200 for the circulation of cooling liquid. One end of the driving device 300 is communicated with the water inlet 100, and the other end is simultaneously communicated with the normal temperature refrigerating module 400, the low temperature refrigerating module 500 and the low temperature heating module 600 respectively, wherein the normal temperature refrigerating module 400, the low temperature refrigerating module 500 and the low temperature heating module 600 are arranged in parallel; the outlet ends of the normal temperature refrigerating module 400, the low temperature refrigerating module 500 and the low temperature heating module 600 are all communicated with the water outlet 200. The ambient temperature sensor 700 is disposed on a housing (not shown) of the battery thermal management system and used for monitoring an ambient temperature, and the controller is electrically connected to the ambient temperature sensor 700, the driving device 300, the normal temperature refrigerating module 400, the low temperature refrigerating module 500, and the low temperature heating module 600.
Optionally, as shown in fig. 1, in this embodiment, an inlet water temperature sensor 110 is disposed on the inlet 100, an outlet water temperature sensor 210 is disposed on the outlet 200, and both the inlet water temperature sensor 110 and the outlet water temperature sensor 210 are electrically connected to the controller.
Alternatively, the driving device 300 in this embodiment is a water pump. The battery pack may be a cylindrical battery pack or a prismatic battery pack, and the embodiment is not limited thereto.
Based on the above design, the working process of the battery thermal management system in this embodiment is as follows:
(1) when the ambient temperature sensor 700 monitors that the ambient temperature is the first preset temperature, optionally, the first preset temperature is set to be equal to or higher than-10 ℃, and the water inlet temperature of the water inlet 100 of the battery pack is equal to or higher than 15 ℃, at this time, the ambient temperature sensor 700 transmits the first preset temperature signal and the water inlet temperature sensor 110 simultaneously transmit the water inlet temperature signal to the controller, and the controller controls the driving device 300 and the normal temperature refrigeration module 400 to start.
Further, the normal temperature refrigeration module 400 includes a condenser 410, a compressor 420, and a heat exchanger 430 connected in sequence, the condenser 410, the compressor 420, and the heat exchanger 430 form a closed loop for refrigerant to flow through, one end of the heat exchanger 430 is communicated with the driving device 300, the other end is communicated with the water outlet 200, and the cooling liquid can flow from the driving device 300 to the water outlet 200 through the heat exchanger 430. An expansion valve 440 is disposed downstream of the condenser 410 in a flow direction of the refrigerant. The refrigerant is compressed by the compressor 420 to provide circulating power of the coolant circuit, and the driving device 300 provides circulating power of the coolant circuit. The high-temperature and high-pressure gas discharged from the compressor 420 radiates heat outwards through the condenser 410 and is converted into a high-pressure and low-temperature liquid refrigerant, and then the high-pressure and low-temperature liquid refrigerant is throttled and depressurized through the expansion valve 440 and enters the heat exchanger 430 to exchange heat with the high-temperature cooling liquid in the battery pack loop, so that the effect of refrigerating the battery pack is achieved. When the temperature of the heat-exchanged cooling liquid is lower than 15 ℃, the outlet water temperature sensor 210 transmits an outlet water temperature signal to the controller, and the controller controls a valve (not shown) at the water outlet 200 to be opened, so that the cooling liquid flows back into the battery pack.
Optionally, the heat exchanger 430 in this embodiment is a plate heat exchanger 430, a refrigerant flows in a tube side of the plate heat exchanger 430, and a cooling liquid flows in a shell side of the tube heat exchanger 430. In this embodiment, a low-pressure switch 460 and a high-pressure switch 450 are further disposed in the loop where the refrigerant flows, so as to facilitate control of the pressure and temperature of the refrigerant in the refrigerant loop and improve the heat exchange efficiency between the refrigerant and the cooling liquid.
(2) When the ambient temperature sensor 700 monitors that the ambient temperature is the second preset temperature, optionally, in this embodiment, the range of the second preset temperature is set to be equal to or lower than-30 ℃ and less than-10 ℃, and the temperature of the inlet water of the water inlet 100 of the battery pack is equal to or higher than 15 ℃, at this time, the ambient temperature sensor 700 transmits a second preset temperature signal to the controller, and the inlet water temperature sensor 110 simultaneously transmits the inlet water temperature signal to the controller, and the controller controls the driving device 300 and the low-temperature refrigeration module 500 to start;
further, as shown in fig. 1, in the present embodiment, the low temperature refrigeration module 500 includes a low temperature water tank 510 and a first solenoid valve 520, one end of the low temperature water tank 510 is communicated with the driving device 300, and the other end is communicated with the water outlet 200. The first solenoid valve 520 is disposed upstream of the low temperature water tank 510 in the flow direction of the cooling liquid. First solenoid valve 520 is connected with the controller electricity, predetermine the temperature as the second when ambient temperature, and the temperature of intaking of battery package water inlet 100 is greater than or equal to 15 ℃, first solenoid valve 520 of controller control and drive arrangement 300 open, make the coolant liquid can get into low temperature water tank 510, the coolant liquid carries out the heat exchange with external air in low temperature water tank 510, and then reduce the temperature of coolant liquid, because normal atmospheric temperature refrigeration module 400 is in the off-state this moment, and then practice thrift the energy consumption, avoid compressor 420 to break down under the extremely cold weather, and the cost is saved, and the service life is prolonged. When the temperature of the heat-exchanged cooling liquid is lower than 15 ℃, the outlet water temperature sensor 210 transmits an outlet water temperature signal to the controller, and the controller controls a valve (not shown) at the water outlet 200 to be opened, so that the cooling liquid flows back into the battery pack.
(3) When the ambient temperature sensor 700 monitors that the ambient temperature is the third preset temperature, optionally, in this embodiment, the third preset temperature is set to be in a range of-40 ℃ or more and less than-10 ℃, and when the water inlet temperature of the battery pack water inlet 100 is less than 5 ℃, at this time, the ambient temperature sensor 700 transmits the third preset temperature signal to the controller, and the water inlet temperature sensor 110 transmits the water inlet temperature signal to the controller at the same time, and the controller controls the driving device 300 and the low temperature heating module 600 to start.
Further, the low temperature heating module 600 includes a PTC heater 610 and a second solenoid valve 620, wherein one end of the PTC heater 610 is communicated with the driving device 300, and the other end is communicated with the water outlet 200. The second solenoid valve 620 is disposed upstream of the PTC heater 610 in the flow direction of the coolant. The second solenoid valve 620 is electrically connected to the controller. When the ambient temperature is the third preset temperature and the water inlet temperature of the battery pack water inlet 100 is less than 5 ℃, the controller controls the second electromagnetic valve 620 and the driving device 300 to be opened, the driving device 300 drives the cooling liquid to the PTC heater 610 through the second electromagnetic valve 620, the temperature of the cooling liquid is further increased, and the danger that the cooling liquid is solidified due to the fact that the temperature is too low is prevented. The low-temperature heating module 600, the normal-temperature refrigerating module 400 and the low-temperature refrigerating module 500 are all arranged in parallel, so that the flow resistance of cooling liquid in a pipeline is reduced, and the heat exchange efficiency of the battery heat management system is improved.
Compared with the prior art, the battery heat management system that this embodiment provided simple structure through with the parallelly connected setting of normal atmospheric temperature refrigeration module 400, low temperature refrigeration module 500 and low temperature heating module 600 to reduce the flow resistance of battery heat management system coolant liquid under various mode, promote the heat transfer ability of coolant liquid. In addition, the battery thermal management system can be suitable for high-temperature and high-cold environments, the working temperature range of the battery thermal management system is widened, and the flexible applicability is improved. When the battery is in a severe cold environment, the temperature of the environment is less than or equal to minus 10 ℃ below zero (minus 30 ℃), the cooling liquid enters the low-temperature water tank 510 for heat exchange, the problem that the compressor 420 cannot normally work in the severe cold environment is solved, the service life of the compressor 420 is prolonged, the cost is saved, the purpose of saving the energy consumption of the battery thermal management system is achieved, and the energy efficiency ratio of the battery thermal management system is improved.
As shown in fig. 1, in the present embodiment, the battery thermal management system further includes a condensing fan 800, the controller is electrically connected to the condensing fan 800, and when the ambient temperature sensor 700 monitors that the ambient temperature is the first preset temperature or the second preset temperature, the controller controls the condensing fan 800 to start. That is, when the normal temperature refrigeration module 400 or the low temperature refrigeration module 500 normally operates, the controller controls the condensing fan 800 to be turned on, thereby further improving the heat dissipation efficiency of the cooling liquid. The condensing fan 800 in this embodiment is disposed on the housing of the battery thermal management system. The number of the condensing fans 800 may be 1 or more, which is not limited in this embodiment.
The embodiment also provides an electric automobile which comprises the battery thermal management system. This battery thermal management system among electric automobile can refrigerate and heat two kinds of modes to the battery package, satisfies refrigeration and the demand of heating under the different ambient temperature such as high temperature, severe cold, has greatly improved electric automobile's life and security performance.
It is to be understood that the foregoing is only illustrative of the presently preferred embodiments of the invention and that the invention may be practiced using other techniques. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
It is noted that in the description herein, references to the description of "some embodiments," "other embodiments," or the like, are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (10)
1. A battery thermal management system, comprising:
the battery pack is provided with a water inlet (100) and a water outlet (200) for circulating cooling liquid;
one end of the driving device (300) is communicated with the water inlet (100), the other end of the driving device (300) is respectively and simultaneously communicated with the normal-temperature refrigerating module (400), the low-temperature refrigerating module (500) and the low-temperature heating module (600), and the normal-temperature refrigerating module (400), the low-temperature refrigerating module (500) and the low-temperature heating module (600) are arranged in parallel; the outlet ends of the normal-temperature refrigerating module (400), the low-temperature refrigerating module (500) and the low-temperature heating module (600) are all communicated with the water outlet (200);
an ambient temperature sensor (700), the ambient temperature sensor (700) disposed on a housing of the battery thermal management system for monitoring an ambient temperature;
the controller is electrically connected with the ambient temperature sensor (700), the driving device (300), the normal-temperature refrigerating module (400), the low-temperature refrigerating module (500) and the low-temperature heating module (600);
when the environment temperature sensor (700) monitors that the environment temperature is a first preset temperature, the environment temperature sensor (700) transmits a first preset temperature signal to the controller, and the controller controls the driving device (300) and the normal-temperature refrigeration module (400) to start;
when the environment temperature sensor (700) monitors that the environment temperature is a second preset temperature, the environment temperature sensor (700) transmits a second preset temperature signal to the controller, and the controller controls the driving device (300) and the low-temperature refrigeration module (500) to start;
when ambient temperature sensor (700) monitoring ambient temperature is the third and predetermines the temperature, ambient temperature sensor (700) predetermine temperature signal transmission with the third extremely the controller, the controller control drive arrangement (300) with low temperature heats module (600) and starts.
2. The battery thermal management system according to claim 1, wherein the normal temperature refrigeration module (400) includes a condenser (410), a compressor (420), and a heat exchanger (430) connected in sequence, the condenser (410), the compressor (420), and the heat exchanger (430) form a closed loop for circulation of a cooling medium, one end of the heat exchanger (430) is communicated with the driving device (300), and the other end is communicated with the water outlet (200), and the cooling liquid can flow from the driving device (300) to the water outlet (200) through the heat exchanger (430).
3. The battery thermal management system according to claim 2, wherein an expansion valve (440) is disposed downstream of the condenser (410) in a flow direction of the refrigerant.
4. The battery thermal management system according to claim 1, wherein the low-temperature refrigeration module (500) comprises a low-temperature water tank (510), one end of the low-temperature water tank (510) is communicated with the driving device (300), and the other end of the low-temperature water tank is communicated with the water outlet (200).
5. The battery thermal management system of claim 4, wherein the low temperature refrigeration module (500) further comprises a first solenoid valve (520), the first solenoid valve (520) being disposed upstream of the low temperature water tank (510) in a flow direction of the cooling liquid.
6. The battery thermal management system according to claim 1, wherein the low temperature heating module (600) comprises a PTC heater (610), one end of the PTC heater (610) is communicated with the driving device (300), and the other end is communicated with the water outlet (200).
7. The battery thermal management system according to claim 6, wherein the low temperature heating module (600) further comprises a second solenoid valve (620), the second solenoid valve (620) being disposed upstream of the PTC heater (610) in a flow direction of the coolant.
8. The battery thermal management system of claim 1, further comprising a condensing fan (800), wherein the controller is electrically connected to the condensing fan (800), and when the ambient temperature sensor (700) monitors that the ambient temperature is a first preset temperature or a second preset temperature, the controller controls the condensing fan (800) to start.
9. The battery thermal management system according to claim 1, wherein a water inlet temperature sensor (110) is disposed on the water inlet (100), a water outlet temperature sensor (210) is disposed on the water outlet (200), and both the water inlet temperature sensor (110) and the water outlet temperature sensor (210) are electrically connected to the controller.
10. An electric vehicle comprising the battery thermal management system of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221032774.9U CN217334198U (en) | 2022-04-29 | 2022-04-29 | Battery thermal management system and electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221032774.9U CN217334198U (en) | 2022-04-29 | 2022-04-29 | Battery thermal management system and electric automobile |
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| CN217334198U true CN217334198U (en) | 2022-08-30 |
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| CN202221032774.9U Active CN217334198U (en) | 2022-04-29 | 2022-04-29 | Battery thermal management system and electric automobile |
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