CN111384469A - Battery package thermal management system and vehicle - Google Patents
Battery package thermal management system and vehicle Download PDFInfo
- Publication number
- CN111384469A CN111384469A CN201811649270.XA CN201811649270A CN111384469A CN 111384469 A CN111384469 A CN 111384469A CN 201811649270 A CN201811649270 A CN 201811649270A CN 111384469 A CN111384469 A CN 111384469A
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- Prior art keywords
- battery pack
- heat
- coolant
- refrigerant
- vehicle
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- 239000003507 refrigerant Substances 0.000 claims abstract description 68
- 239000002826 coolant Substances 0.000 claims description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 210000000476 body water Anatomy 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 2
- 238000009428 plumbing Methods 0.000 claims 1
- 239000000110 cooling liquid Substances 0.000 abstract description 32
- 238000007726 management method Methods 0.000 description 33
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a battery pack thermal management system, and relates to the technical field of vehicles. The battery pack thermal management system comprises a battery pack body; the cooling liquid heat exchange piece is arranged on the battery pack body, is arranged to be mounted on a vehicle or dismounted from the vehicle together with the battery pack body, and can absorb heat generated by the battery pack body or provide heat to the battery pack body; and the refrigerant heat exchange piece is arranged on a vehicle body bottom plate of the vehicle, and is in surface contact with the cooling liquid heat exchange piece so as to absorb heat on the cooling liquid heat exchange piece or provide heat to the cooling liquid heat exchange piece. The invention also provides a vehicle comprising the battery pack thermal management system. The battery pack heat management system can prolong the service life of the battery pack heat management system and improve the energy utilization rate of a vehicle.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a battery pack thermal management system and a vehicle.
Background
At present, a quick change scheme of a battery pack becomes a bright spot of subsequent development of a new energy vehicle, and battery thermal management is also an important function of the new energy vehicle, namely, the battery thermal management function is also met on the basis of meeting the requirement of quick change of the battery.
In the current battery heat management of the battery quick-change scheme, a quick-insertion type waterway plug is added on a medium loop of the heat management, a quick-insertion connector is disconnected before a battery pack is replaced, and the quick-insertion connector is inserted after the battery pack is replaced.
However, the condition of medium leakage can appear in the operation process of the quick-plugging type waterway plug, and meanwhile, after the battery is replaced, the battery heat management loop can participate in air, and after the battery is replaced by a plurality of wheels, the medium leakage amount of the whole loop cannot be ignored. Meanwhile, the flow resistance of the quick-insertion waterway plug is large, the performance of the water pump needs to be correspondingly increased, and the energy consumption is increased.
Disclosure of Invention
An object of the first aspect of the present invention is to provide a battery pack thermal management system that can prevent media loss during battery replacement.
It is a further object of the first aspect of the invention to provide a battery pack thermal management system that does not require increased water pump performance.
An object of the second aspect of the invention is to provide a vehicle including the battery pack thermal management system, which can prevent the medium loss during the battery replacement process.
According to a first aspect of the present invention, there is provided a battery pack thermal management system comprising:
a battery pack body;
a coolant heat exchanger mounted on the battery pack body, the coolant heat exchanger being configured to be mounted to or dismounted from a vehicle together with the battery pack body, and being capable of absorbing heat generated by the battery pack body or providing heat to the battery pack body; and
a refrigerant heat exchanger mounted on a vehicle underbody of the vehicle, the refrigerant heat exchanger being disposed in surface contact with the coolant heat exchanger to absorb heat on the coolant heat exchanger or to provide heat to the coolant heat exchanger.
Further, the coolant heat exchange member comprises a coolant heat exchange plate, and the coolant heat exchange plate are in surface contact with each other to realize heat exchange when the battery pack body is mounted on the vehicle.
Further, a heat conducting layer is arranged on the contact surface of the cooling liquid heat exchange plate and/or the refrigerant heat exchange plate.
Further, the coolant heat exchange piece still includes battery package body delivery port, water pump and the battery package body water inlet of pipe connection in proper order, the coolant heat transfer board is located the water pump with between the battery package body water inlet.
Furthermore, a cooling liquid inlet, a plurality of parallel cooling liquid channels and a cooling liquid outlet are arranged on the cooling liquid heat exchange plate, the cooling liquid uniformly flows into the cooling liquid channels through the cooling liquid inlet and then flows out of the cooling liquid outlet, wherein,
the cooling liquid channel is arranged close to the heat conduction layer on the cooling liquid heat exchange plate.
Furthermore, the refrigerant heat exchange plate is provided with a refrigerant inlet, a plurality of parallel refrigerant channels and a refrigerant outlet, the refrigerant uniformly flows into the refrigerant channels through the refrigerant inlet and then flows out of the refrigerant outlet, wherein,
the refrigerant channel is arranged close to the heat conducting layer on the refrigerant heat exchange plate.
Further, the water pump is an electronic water pump.
Further, the refrigerant heat exchange plate is fixedly connected with a vehicle body bottom plate of the vehicle.
According to a second aspect of the invention, the invention provides a vehicle, which comprises a vehicle body of the vehicle, and further comprises the battery pack thermal management system connected with the vehicle body.
According to the battery pack heat management system and the vehicle, the cooling liquid heat exchange piece is arranged on the battery pack body, is arranged to be arranged on the vehicle or detached from the vehicle together with the battery pack body, and can absorb heat generated by the battery pack body or provide heat to the battery pack body; the refrigerant heat exchange member is mounted on a vehicle underbody of the vehicle and is disposed in surface contact with the coolant heat exchange member to absorb heat on the coolant heat exchange member or provide heat to the coolant heat exchange member. Therefore, when the battery pack is replaced, the cooling liquid heat exchange piece can be mounted on the vehicle or dismounted from the vehicle along with the battery pack body, so that the medium leakage can be prevented from causing related damage in the battery pack replacement process, and the service life of the battery pack heat management system is effectively prolonged.
Furthermore, because the quick-plugging waterway plug is not arranged in the heat management system, the performance of the water pump does not need to be increased for overcoming the flow resistance as in the prior art, so that the power consumption of the water pump is effectively saved, and the energy utilization rate of a vehicle is improved.
In addition, the invention has simple and clear integral structure and is easy to arrange on the vehicle and the battery pack, thereby being completely matched with the full-automatic battery pack replacement scheme; meanwhile, the battery pack heat management system is simple to maintain, and because the heat exchange is realized by surface contact, a wear mechanism does not exist, so that the service life is long, and the service life of the battery pack heat management system can be obviously prolonged.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic block diagram of a battery pack thermal management system according to one embodiment of the present invention;
FIG. 2 is a schematic block diagram of one side of a refrigerant heat exchanger according to one embodiment of the present invention;
fig. 3 is a schematic structural view of a cooling liquid heat exchange member and a battery pack body according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural diagram of a battery pack thermal management system according to an embodiment of the present invention. As shown in fig. 1, the battery pack heat management system includes a battery pack body 1, a coolant heat exchanger 2, and a refrigerant heat exchanger 3. The cooling liquid heat exchange member 2 is mounted on the battery pack body 1, and the cooling liquid heat exchange member 2 is arranged to be mounted on or dismounted from a vehicle together with the battery pack body 1, and can absorb heat generated by the battery pack body 1 or provide heat to the battery pack body 1. The refrigerant heat exchanger 3 is mounted on a vehicle underbody 4 of the vehicle, and the refrigerant heat exchanger 3 is disposed in surface contact with the coolant heat exchanger 2 to absorb heat on the coolant heat exchanger 2 or to supply heat to the coolant heat exchanger 2. Here, the battery pack body 1 may be a single battery pack or a battery pack group including a plurality of battery packs.
The battery pack heat management system is arranged on the battery pack body 1 through the cooling liquid heat exchange piece 2, can be arranged on a vehicle or detached from the vehicle together with the battery pack body 1, and can absorb heat generated by the battery pack body 1 or provide heat to the battery pack body 1; the refrigerant heat exchanger 3 is mounted on a vehicle underbody 4 of the vehicle, and is disposed to be able to come into surface contact with the coolant heat exchanger 2 to absorb heat on the coolant heat exchanger 2 or to supply heat to the coolant heat exchanger 2. Therefore, when the battery pack is replaced, the cooling liquid heat exchange piece can be mounted on the vehicle or dismounted from the vehicle along with the battery pack body, so that the medium leakage can be prevented from causing related damage in the battery pack replacement process, and the service life of the battery pack heat management system is effectively prolonged.
Furthermore, because the quick-plugging waterway plug is not arranged in the heat management system, the performance of the water pump does not need to be increased for overcoming the flow resistance as in the prior art, so that the power consumption of the water pump is effectively saved, and the energy utilization rate of a vehicle is improved.
In addition, the invention has simple and clear integral structure and is easy to arrange on the vehicle and the battery pack, thereby being completely matched with the full-automatic battery pack replacement scheme; meanwhile, the battery pack heat management system is simple to maintain, and because the heat exchange is realized by surface contact, a wear mechanism does not exist, so that the service life is long, and the service life of the battery pack heat management system can be obviously prolonged.
Specifically, fig. 2 is a schematic configuration view of a refrigerant heat exchanger side according to an embodiment of the present invention, and fig. 3 is a schematic configuration view of a cooling liquid heat exchanger and a battery pack body according to an embodiment of the present invention. As shown in fig. 3, the coolant heat exchanger 2 includes a coolant heat-exchange plate 21, and as shown in fig. 2, the refrigerant heat exchanger 3 includes a refrigerant heat-exchange plate 31, and the coolant heat-exchange plate 21 and the refrigerant heat-exchange plate 31 are in surface contact with each other to achieve heat exchange when the battery pack body 1 is mounted on the vehicle. Here, both the coolant heat exchange plate 21 and the refrigerant heat exchange plate 31 may have a plate-shaped structure, and when the coolant heat exchange member 2 is mounted to the vehicle along with the battery pack body 1, one surface of the coolant heat exchange plate 21 is in close contact with one surface of the refrigerant heat exchange plate 31, so that heat exchange may be performed when the temperatures of the coolant heat exchange plate 21 and the refrigerant heat exchange plate 31 are not uniform. That is, when the temperature of the battery pack body is excessively high or excessively low, the temperature reduction or the temperature increase may be achieved by heat exchange between the coolant heat-exchange plate 21 and the refrigerant heat-exchange plate 31.
In one embodiment of the present invention, a heat conducting layer (not shown) is disposed on the contact surface of the coolant heat exchange plate 21 and/or the refrigerant heat exchange plate 31. Therefore, the good heat conduction effect between the two heat conduction surfaces can be fully ensured. The heat conducting layer is made of high heat conducting materials, such as heat conducting silica gel, graphite gaskets and the like.
Further, as shown in fig. 3, the coolant heat exchange member 2 may further include a battery pack body water outlet 22, a water pump 23, and a battery pack body water inlet 24, which are sequentially connected by a pipeline, and the coolant heat exchange plate 21 may be located between the water pump 23 and the battery pack body water inlet 24. Here, the water pump 23 may be an electric water pump.
Specifically, have the coolant liquid pipeline with battery package body delivery port 22 and the intercommunication of battery package body water inlet 24 in the inside of battery package body 1, water pump 23 has the function of pump sending coolant liquid, the coolant liquid gets into the inside of battery package body 1 from battery package body water inlet 24, flow out from battery package body delivery port 22 after carrying out the heat exchange with battery package body 1, and then carry out the heat exchange with refrigerant heat transfer plate 31 in getting into coolant liquid heat transfer plate 21 through the pipeline, so, then accomplished the thermal management of battery package.
More specifically, when the battery pack body 1 is overheated, the coolant enters the inside of the battery pack body 1 from the battery pack body water inlet 24, flows out from the battery pack body water outlet 22 after absorbing heat generated by the battery pack body 1, and then enters the coolant heat exchange plate 21 through a pipeline to exchange heat with the refrigerant heat exchange plate 31, specifically, the coolant temperature is decreased by releasing heat to the refrigerant heat exchange plate 31, and then the cooled coolant enters the inside of the battery pack body 1 through a pipeline again to absorb heat generated by the battery pack body 1, and the above cycle is repeated until the temperature of the battery pack body 1 is decreased to a proper temperature. When the battery pack body 1 is too cold, the cooling liquid enters the inside of the battery pack body 1 from the battery pack body water inlet 24, the heat is supplied to the battery pack body 1 and then flows out from the battery pack body water outlet 22, the cooling liquid enters the cooling liquid heat exchange plate 21 through a pipeline and is subjected to heat exchange with the refrigerant heat exchange plate 31, the temperature of the cooling liquid is raised particularly by absorbing the heat on the refrigerant heat exchange plate 31, the cooling liquid after being heated enters the inside of the battery pack body 1 through the pipeline again and supplies heat to the battery pack body 1, and the circulation is repeated until the temperature of the battery pack body 1 is raised to a proper temperature.
In an embodiment of the present invention, the coolant heat exchange plate 21 is provided with a coolant inlet, a plurality of parallel coolant channels and a coolant outlet (not shown in the figure), and the coolant uniformly flows into the coolant channels through the coolant inlet and then flows out of the coolant outlet. By arranging a plurality of cooling liquid channels, heat can be transferred to the refrigerant heat exchange plate 31 in time or more heat can be absorbed from the refrigerant heat exchange plate 31, and therefore heat exchange efficiency is improved. Similarly, the coolant channel may be disposed close to the heat conduction layer on the coolant heat exchange plate 21, so as to further improve the heat exchange efficiency.
In other embodiments of the present invention, the refrigerant heat exchange plate 31 is provided with a refrigerant inlet, a plurality of parallel refrigerant channels and a refrigerant outlet (not shown in the figure), and the refrigerant flows into the refrigerant channels uniformly through the refrigerant inlet and then flows out of the refrigerant outlet. By arranging the plurality of refrigerant channels, heat can be transferred to the cooling liquid heat exchange plate 21 in time or more heat can be absorbed from the cooling liquid heat exchange plate 21, and therefore heat exchange efficiency is improved. Similarly, the refrigerant channel is disposed close to the heat conduction layer on the refrigerant heat exchange plate 31, so that the heat exchange efficiency is further improved.
Further, in one embodiment of the present invention, the refrigerant heat exchange plate 31 is fixedly coupled to the underbody 4 of the vehicle. Therefore, the firmness of connection between the refrigerant heat exchange plate 31 and the vehicle body is improved, and the working stability of the battery pack heat management system is improved.
Meanwhile, in an embodiment of the invention, the invention further provides a vehicle which comprises a vehicle body of the vehicle and the battery pack thermal management system connected with the vehicle body. Since the battery pack thermal management system of the vehicle is completely the same as the battery pack thermal management system described above, the details of the battery pack thermal management system are not repeated in this embodiment.
Since the vehicle includes a battery pack heat management system, it is mounted on the battery pack body 1 through a coolant heat exchanger 2, provided to be attachable to and detachable from the vehicle together with the battery pack body 1, and capable of absorbing heat generated by the battery pack body 1 or supplying heat to the battery pack body 1; the refrigerant heat exchanger 3 is mounted on a vehicle underbody 4 of the vehicle, and is disposed to be able to come into surface contact with the coolant heat exchanger 2 to absorb heat on the coolant heat exchanger 2 or to supply heat to the coolant heat exchanger 2. Therefore, when the battery pack is replaced, the cooling liquid heat exchange piece can be mounted on the vehicle or dismounted from the vehicle along with the battery pack body, so that the medium leakage can be prevented from causing related damage in the battery pack replacement process, and the service life of the battery pack heat management system is effectively prolonged.
Thus, it should be understood by those skilled in the art that while exemplary embodiments of the present invention have been illustrated and described in detail herein, many other variations or modifications which are consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (9)
1. A battery pack thermal management system, comprising:
a battery pack body;
a coolant heat exchanger mounted on the battery pack body, the coolant heat exchanger being configured to be mounted to or dismounted from a vehicle together with the battery pack body, and being capable of absorbing heat generated by the battery pack body or providing heat to the battery pack body; and
a refrigerant heat exchanger mounted on a vehicle underbody of the vehicle, the refrigerant heat exchanger being disposed in surface contact with the coolant heat exchanger to absorb heat on the coolant heat exchanger or to provide heat to the coolant heat exchanger.
2. The battery pack thermal management system of claim 1, wherein the coolant heat exchange member comprises a coolant heat-exchange plate, and the refrigerant heat exchange member comprises a refrigerant heat-exchange plate, the coolant heat-exchange plate and the refrigerant heat-exchange plate being in surface contact with one another to effect heat exchange when the battery pack body is mounted to the vehicle.
3. The battery pack thermal management system of claim 2, wherein a thermally conductive layer is disposed on a contact surface of the coolant heat-exchange plate and/or the refrigerant heat-exchange plate.
4. The battery pack thermal management system of claim 2, wherein the coolant heat exchanger further comprises a battery pack body water outlet, a water pump, and a battery pack body water inlet in sequential plumbing connection, and the coolant heat exchanger plate is positioned between the water pump and the battery pack body water inlet.
5. The system according to claim 3, wherein the heat-exchanging plate is provided with a coolant inlet, a plurality of parallel coolant channels and a coolant outlet, the coolant inlet is used for allowing the coolant to uniformly flow into the coolant channels and then flow out of the coolant outlet, and the coolant channels are disposed near the heat-conducting layer on the heat-exchanging plate.
6. The battery pack heat management system of claim 3, wherein the refrigerant heat-exchange plate is provided with a refrigerant inlet, a plurality of side-by-side and parallel refrigerant channels, and a refrigerant outlet, the refrigerant flowing into the refrigerant channels uniformly through the refrigerant inlet and flowing out of the refrigerant outlet, wherein the refrigerant channels are disposed adjacent to the heat conducting layer on the refrigerant heat-exchange plate.
7. The battery pack thermal management system of claim 4, wherein the water pump is an electronic water pump.
8. The battery pack thermal management system of claim 2, wherein the refrigerant heat-exchange plate is fixedly attached to an underbody of the vehicle.
9. A vehicle comprising a body of the vehicle, further comprising a battery pack thermal management system as claimed in any one of claims 1-8 coupled to the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649270.XA CN111384469A (en) | 2018-12-30 | 2018-12-30 | Battery package thermal management system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649270.XA CN111384469A (en) | 2018-12-30 | 2018-12-30 | Battery package thermal management system and vehicle |
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| CN111384469A true CN111384469A (en) | 2020-07-07 |
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| CN201811649270.XA Pending CN111384469A (en) | 2018-12-30 | 2018-12-30 | Battery package thermal management system and vehicle |
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