CN211468177U - Power battery assembly of electric automobile and electric automobile - Google Patents
Power battery assembly of electric automobile and electric automobile Download PDFInfo
- Publication number
- CN211468177U CN211468177U CN201921870451.5U CN201921870451U CN211468177U CN 211468177 U CN211468177 U CN 211468177U CN 201921870451 U CN201921870451 U CN 201921870451U CN 211468177 U CN211468177 U CN 211468177U
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- fuel cell
- rechargeable battery
- electric vehicle
- charger
- assembly
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- 239000000446 fuel Substances 0.000 claims abstract description 81
- 239000007789 gas Substances 0.000 claims abstract description 20
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 5
- 239000003570 air Substances 0.000 description 24
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The utility model provides an electric automobile's power battery subassembly and electric automobile, electric automobile's power battery subassembly includes: a fuel cell assembly, the fuel cell assembly comprising: a gas storage tank; the fuel cell reactor is suitable for receiving the hydrogen delivered by the gas storage tank to generate electric energy; the rechargeable battery assembly comprises a rechargeable battery and a charger, and the charger is suitable for charging the rechargeable battery; wherein the fuel cell reactor is located on one side of the rechargeable battery and the charger is located on the other side of the rechargeable battery. The relative positions of the fuel cell reactor, the rechargeable battery and the charger are reasonably distributed, and the space of the automobile chassis can be efficiently utilized.
Description
Technical Field
The utility model relates to an automobile manufacturing technical field especially relates to an electric automobile's power battery subassembly and electric automobile.
Background
The traditional internal combustion engine automobile mainly uses traditional energy sources such as gasoline, diesel oil, natural gas and the like as main fuels, a large amount of energy sources are required to be consumed in the refining process of petroleum, a large amount of harmful substances are emitted, and meanwhile, the influence of the emission of the tail gas of the internal combustion engine automobile on the environment is increased. Therefore, people research and develop new energy automobiles to replace traditional internal combustion engine automobiles, and the new energy automobiles adopt unconventional automobile fuel as a power source and have the advantages of energy conservation, environmental protection and the like.
The new energy automobile comprises a pure electric automobile, a fuel cell automobile and the like. The pure electric vehicle stores energy by means of the rechargeable battery, the rechargeable battery provides electric energy to drive the vehicle to move forwards in the driving process, and the pure electric vehicle can achieve complete zero emission in the driving process and has the defect of short driving range. Fuel cell vehicles typically utilize the conversion of chemical energy generated by the reaction of hydrogen into mechanical energy to propel the vehicle forward. The fuel cell automobile has high energy conversion efficiency, no noise and no pollutant discharge, and can effectively reduce the air pollution problem caused by the traditional gasoline automobile.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric automobile's power battery subassembly and electric automobile can be in the relative position of limited interior rational arrangement fuel cell reactor of carrying on the space, rechargeable battery and charger to effectively utilize the vehicle chassis space.
The utility model provides an electric automobile's power battery subassembly, include: a fuel cell assembly, the fuel cell assembly comprising: a gas storage tank; the fuel cell reactor is suitable for receiving the hydrogen delivered by the gas storage tank to generate electric energy; the rechargeable battery assembly comprises a rechargeable battery and a charger, and the charger is suitable for charging the rechargeable battery; wherein the fuel cell reactor is located on one side of the rechargeable battery and the charger is located on the other side of the rechargeable battery.
Optionally, the fuel cell reactor is disposed on a side of the electric vehicle opposite to a driver seat in a width direction.
Optionally, one side of the fuel cell reactor is close to the head of the electric vehicle, and the rechargeable battery is located on the other side of the fuel cell reactor, which is far away from the head of the electric vehicle.
Optionally, the fuel cell assembly further comprises: a plurality of sets of piping adapted to connect the fuel cell reactor to the gas storage tank.
Optionally, the number of the air storage tanks is multiple, and the air storage tanks are communicated with each other.
Optionally, at least two of the plurality of air tanks are located on two sides of the charger respectively along the width direction of the electric vehicle.
Optionally, a part of the plurality of air tanks is located between the head of the electric vehicle and the rechargeable battery.
Correspondingly, the utility model also provides an electric automobile, include: the automobile body comprises an automobile shell and an automobile chassis, and the power battery assembly is positioned on the automobile chassis.
Optionally, a charging port is arranged on the automobile shell, and the charging port is electrically connected with the charger.
Optionally, the automobile shell is further provided with an inflation inlet, and the inflation inlet is communicated with the air storage tank.
Optionally, the charging port is disposed on one side of the vehicle housing and the inflation port is disposed on the other side of the vehicle housing.
Compared with the prior art, the technical scheme of the utility model have following advantage:
the power battery assembly of the electric automobile comprises: fuel cell assembly and rechargeable battery assembly. The fuel cell assembly comprises a gas storage tank and a fuel cell reactor, wherein the fuel cell reactor is suitable for receiving hydrogen conveyed by the gas storage tank to generate electric energy. The rechargeable battery assembly comprises a rechargeable battery and a charger, and the rechargeable battery is suitable for storing and outputting electric energy. The electric automobile is driven to move forwards by the electric energy generated by the fuel cell reactor and/or the electric energy output by the rechargeable battery, and the driving mileage of the electric automobile is promoted. The fuel cell reactor is positioned on one side of the rechargeable battery, the charger is positioned on the other side of the rechargeable battery, and the fuel cell reactor and the charger can be prevented from occupying the mutual position space, so that the relative positions of the fuel cell reactor, the rechargeable battery and the charger are reasonably arranged, and the efficient utilization of the space of the automobile chassis is facilitated.
Further, the fuel cell assembly further includes: and a plurality of sets of pipes adapted to connect the fuel cell reactor and the gas tank, wherein the fuel cell reactor is located on one side of the rechargeable battery, and the charger is located on the other side of the rechargeable battery, so that sufficient space is provided for mounting the pipes, and the pipes are arranged conveniently.
Drawings
Fig. 1 is a schematic structural diagram of a power battery assembly of an electric vehicle according to an embodiment of the present invention;
fig. 2 is a schematic view of an internal structure of an electric vehicle according to an embodiment of the present invention.
Detailed Description
The power battery assembly of the electric vehicle comprises a fuel battery assembly, wherein the fuel battery assembly comprises a gas storage tank and a fuel battery reactor, and the fuel battery reactor is suitable for receiving hydrogen gas conveyed by the gas storage tank to generate electric energy so as to provide energy for the electric vehicle to travel. The power battery assembly is easily limited by refueling and influences the endurance mileage of the electric automobile. In order to improve the endurance mileage of the electric vehicle, the power battery assembly of the electric vehicle may further include a rechargeable battery assembly, the rechargeable battery assembly includes a rechargeable battery and a charger, and the electric energy generated by the fuel battery assembly and/or the electric energy output by the rechargeable battery drives the electric vehicle to move forward, which is helpful for improving the endurance mileage of the electric vehicle. However, the power battery module of the electric vehicle includes both the fuel cell module and the rechargeable battery module, which occupy relatively large spaces, respectively, and it is necessary to arrange them reasonably in order to efficiently utilize the effective mounting space.
The inventor researches the power battery assembly of the electric automobile, and after creative work, the inventor notices that the fuel cell reactor is arranged at one side of the rechargeable battery, and the charger is arranged at the other side of the rechargeable battery, so that the space of the automobile chassis can be efficiently utilized.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 shows a schematic structural diagram of a power battery assembly 100 of an electric vehicle according to an embodiment of the present invention.
Referring to fig. 1, a power cell assembly 100 of an electric vehicle includes a fuel cell assembly and a rechargeable battery assembly, the fuel cell assembly includes a gas storage tank 200 and a fuel cell reactor 300, and the fuel cell reactor 300 is adapted to receive hydrogen gas delivered by the gas storage tank 200 to generate electric energy. The rechargeable battery assembly includes a rechargeable battery 410 and a charger 420, the charger 420 is adapted to charge the rechargeable battery 410, and the rechargeable battery 410 is adapted to store electric energy input by the charger 420 and output electric energy. Wherein the fuel cell reactor 300 is located at one side of the rechargeable battery 410, and the charger 420 is located at the other side of the rechargeable battery 410.
The electric automobile is driven to move by the electric energy generated by the fuel cell assembly and/or the electric energy output by the rechargeable battery assembly, and the driving range of the electric automobile is improved. Furthermore, when the electric vehicle travels to a high energy consumption road section, such as an uphill slope of the electric vehicle, the fuel cell assembly and the rechargeable battery assembly may be operated simultaneously to provide sufficient power supply for the electric vehicle.
The fuel cell reactor is positioned on one side of the rechargeable battery, and the charger is positioned on the other side of the rechargeable battery, so that the fuel cell reactor 300 and the charger 420 are prevented from occupying the mutual position space, the relative positions of the fuel cell reactor 300, the rechargeable battery 410 and the charger 420 are reasonably arranged, the relative positions are reasonably distributed in a limited space, and the space of the automobile chassis is efficiently utilized.
The front-back direction of the body of the electric automobile is a first direction, and the head of the electric automobile points to the tail of the electric automobile in the first direction. The width direction of the electric automobile is a second direction, and the second direction is perpendicular to the first direction.
One side of the fuel cell reactor 300 is close to the head 131 of the electric vehicle, and the rechargeable battery 410 is located at the other side of the fuel cell reactor 300, which is far away from the head 131 of the electric vehicle. In some embodiments, the elongation direction of the rechargeable battery 410 is substantially parallel to the first direction when located on a horizontal ground.
The charger 420 is adapted to charge the rechargeable battery 410. In this embodiment, the charger 420 is connected to the rechargeable battery 410 through a connection line 450.
In some embodiments, the rechargeable battery assembly further comprises a charging port 430, the charging port 430 being electrically connected to the charger 420.
The rechargeable battery pack further includes: a cable 440, one end of the cable 440 is connected to the charging port 430, and the other end of the cable 440 is connected to the charger 420. The electric energy from the outside is transmitted to the charger 420 through the charging port 430 and the cable 440, so as to charge the rechargeable battery 410.
The gas storage tank 200 is adapted to store hydrogen gas to provide hydrogen gas make-up for the fuel cell reactor 300.
The number of the air tanks 200 is plural, and the plural air tanks 200 are communicated with each other.
In some embodiments, at least two of the air tanks 200 are located on both sides of the rechargeable battery 410 and the charger 420 along the width direction of the electric vehicle. Namely, the rechargeable battery 410 and the charger 420 are respectively located at two sides along the second direction, so as to protect the rechargeable battery 410 and the charger 420 and reduce the impact from the outside to the rechargeable battery 410 and the charger 420.
In some embodiments, further including a portion of the plurality of air tanks 200, is located between the head 131 of the electric vehicle and the rechargeable battery 410. One end of the air tank 200 located between the head 131 of the electric vehicle and the rechargeable battery 410 faces the rechargeable battery 410, and the other end extends toward the head 131 of the electric vehicle.
In some embodiments, two air tanks 200 are located between the head 131 of the electric vehicle and the rechargeable battery 410, and the two air tanks 200 are arranged side by side in the width direction of the vehicle.
The fuel cell assembly further includes: the inflating port 201, the inflating port 201 is communicated with the air storage tank 200.
In some embodiments, the fuel cell assembly further comprises: a manifold 230, said manifold 230 having an input orifice and a plurality of output orifices, said input orifices being aligned with said inflation ports 201. The output nozzles are connected to the gas storage tanks 200 one by one, thereby delivering hydrogen gas to each of the gas storage tanks 200.
In some embodiments, the fuel cell reactor 300 is disposed on the side of the electric vehicle opposite to the driver seat in the width direction. The driving seat is a position where a driver of the electric automobile sits when driving.
In some embodiments, the fuel cell assembly further comprises: a plurality of piping (not shown) for connecting the fuel cell reactor 300 and the gas tank 200. The hydrogen gas in the gas tank 200 is sent to the fuel cell reactor 300 through the pipe.
In some embodiments, the power battery assembly 100 of the electric vehicle further includes: an air inlet duct adapted to deliver ambient air to the fuel cell reactor 300. The hydrogen gas delivered to the fuel cell reactor 300 and the oxygen gas in the air are electrochemically reacted to directly convert chemical energy into electric energy, so as to be used as power for driving an electric vehicle. The positions of the plurality of sets of piping are related to the positions of the fuel cell reactor 300. If the fuel cell reactor and the charger are disposed on the same side of the rechargeable battery, the number of pipes of the fuel cell reactor is large, and since the fuel cell reactor 300 is further provided with an air inlet pipe, it is difficult to dispose such a large number of pipes. And because the pipeline occupies a large space, the occupied space of the charger can be occupied. The fuel cell reactor 300 is located on one side of the rechargeable battery 410 and the charger 420 is located on the other side of the rechargeable battery 410 to facilitate plumbing.
In some embodiments, the fuel cell reactor 300 includes a fuel cell stack 310 and a fuel cell booster 320, the fuel cell stack 310 and the fuel cell booster 320 being electrically connected.
The power battery assembly 100 further comprises: an integrator 710, the integrator 710 connecting the charger 420 and the fuel cell reactor 300.
In some embodiments, the integrator 710 is adapted to integrate two power sources, and the electric power generated by the fuel cell reactor 300 and the electric power provided by the rechargeable battery 410 are combined at the integrator 710, and the combined electric power drives the motor to operate.
Fig. 2 is a schematic view of an internal structure of an electric vehicle according to an embodiment of the present invention.
In some embodiments, the side walls of the car housing include a first side wall 121 and a second side wall 122, and the first side wall 121 and the second side wall 122 are left and right side walls of the electric car body, respectively. The left-right direction is defined based on the left and right of the driver of the electric vehicle.
In some embodiments, two longitudinal beams 600 are disposed on the vehicle chassis and extend from the head 131 to the tail 132 of the electric vehicle, and the longitudinal beams 600 extend in a direction parallel to the first direction. One of the stringers 600 is adjacent to the first sidewall 121 and the other stringer 600 is adjacent to the second sidewall 122.
In some embodiments, the rechargeable battery 410 is located between two of the stringers 600.
In some embodiments, the charging port 430 is located on the second sidewall 122 of the vehicle housing. In other embodiments, the charging port 430 is located on the first sidewall 121.
The power battery assembly 100 includes a plurality of air tanks 200, and at least two air tanks 200 of the plurality of air tanks 200 are respectively located on two sides of the rechargeable battery 410 and the charger 420 along the width direction of the electric vehicle. The air tank 200 on both sides of the rechargeable battery 410 and the charger 420 is located between the side member 600 and the side wall of the car body, and the air tank 200 is bound to the side member 600 by a metal binding band, so that the structural strength can be ensured while suppressing an increase in mass.
In some embodiments, further including a portion of the plurality of air tanks 200, is located between the head of the electric vehicle and the rechargeable battery 410. The air tank 200 between the head of the electric vehicle and the rechargeable battery 410 is located between the two longitudinal members 600, and the air tank 200 is bound to the longitudinal members 600 by metal ties, which is advantageous in ensuring the strength of the structure while suppressing an increase in mass.
In some embodiments, the inflation port 201 is located on the first sidewall 121 of the vehicle housing.
In some embodiments, the charging port 430 is disposed on one side of the vehicle housing and the inflation port 201 is disposed on the other side of the vehicle housing.
In some embodiments, the electric vehicle further comprises a pair of front wheels 741 and a pair of rear wheels 742.
The electric vehicle further includes: a Power Control Unit 720 (PCU), and a motor 500 electrically connected to the Power Control Unit 720. The power control unit 720 is also electrically connected to the integrator 710. The power control unit 720 is adapted to convert the total electric power collected by the integrator 710 into ac power and dc power, so as to drive the motor 500 to operate.
In some embodiments, the motor 500 is rotatably coupled to the rear wheel 742 via a shaft 743 to drive the rear wheel 742 to rotate.
In some embodiments, the rechargeable battery assembly further comprises a temperature controller 730 and a battery cooling system for regulating the temperature of the rechargeable battery 410. The cooling fluid in the cooling line of the battery cooling system is adapted to exchange heat with the rechargeable battery 410 in order to cool the rechargeable battery 410.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (11)
1. A power battery assembly (100) of an electric vehicle, comprising:
a fuel cell assembly, the fuel cell assembly comprising: an air tank (200); a fuel cell reactor (300), wherein the fuel cell reactor (300) is suitable for receiving the hydrogen delivered by the gas storage tank (200) to generate electric energy;
a rechargeable battery assembly comprising a rechargeable battery (410) and a charger (420), the charger (420) being adapted to charge the rechargeable battery (410);
wherein the fuel cell reactor (300) is located on one side of the rechargeable battery (410) and the charger (420) is located on the other side of the rechargeable battery (410).
2. The power cell assembly (100) of the electric vehicle according to claim 1, wherein the fuel cell reactor (300) is disposed on a side opposite to a driver's seat in a width direction of the electric vehicle.
3. The power cell assembly (100) of the electric vehicle according to claim 1, wherein one side of the fuel cell reactor (300) is close to the head (131) of the electric vehicle, and the rechargeable battery (410) is located on the other side of the fuel cell reactor (300) away from the head (131) of the electric vehicle.
4. The power cell assembly (100) of an electric vehicle of claim 3, wherein the fuel cell assembly further comprises: a plurality of sets of piping adapted to connect the fuel cell reactor (300) and the gas storage tank (200).
5. The power battery assembly (100) of the electric vehicle as claimed in claim 4, wherein the number of the air tanks (200) is plural, and the plural air tanks (200) are communicated with each other.
6. The power battery assembly (100) of an electric vehicle according to claim 5, wherein at least two of the plurality of air tanks (200) are respectively located on both sides of the charger (420) in a width direction of the electric vehicle.
7. The power battery assembly (100) of the electric vehicle according to claim 6, wherein a portion of the plurality of air tanks (200) is located between the head (131) of the electric vehicle and the rechargeable battery (410).
8. An electric vehicle, comprising: an automotive body comprising an automotive shell and an automotive chassis; and
the power cell assembly (100) of an electric vehicle according to any one of claims 1 to 7, the power cell assembly (100) being located on the vehicle chassis.
9. The electric vehicle of claim 8, characterized in that a charging port (430) is provided on the vehicle housing, the charging port (430) being electrically connected to the charger (420).
10. The electric vehicle of claim 9, characterized in that an air charging port (201) is further provided on the vehicle housing, and the air charging port (201) is communicated with the air storage tank (200).
11. The electric vehicle of claim 10, characterized in that the charging port (430) is arranged on one side of the vehicle housing and the inflation port (201) is arranged on the other side of the vehicle housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870451.5U CN211468177U (en) | 2019-11-01 | 2019-11-01 | Power battery assembly of electric automobile and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870451.5U CN211468177U (en) | 2019-11-01 | 2019-11-01 | Power battery assembly of electric automobile and electric automobile |
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| Publication Number | Publication Date |
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| CN211468177U true CN211468177U (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921870451.5U Active CN211468177U (en) | 2019-11-01 | 2019-11-01 | Power battery assembly of electric automobile and electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112297887A (en) * | 2020-10-29 | 2021-02-02 | 武汉格罗夫氢能汽车有限公司 | Logistics vehicle chassis platform suitable for hydrogen fuel cell and logistics vehicle |
| CN112319446A (en) * | 2020-11-06 | 2021-02-05 | 厦门金龙汽车新能源科技有限公司 | Electric motor coach double-air pump system and control method thereof |
-
2019
- 2019-11-01 CN CN201921870451.5U patent/CN211468177U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112297887A (en) * | 2020-10-29 | 2021-02-02 | 武汉格罗夫氢能汽车有限公司 | Logistics vehicle chassis platform suitable for hydrogen fuel cell and logistics vehicle |
| CN112319446A (en) * | 2020-11-06 | 2021-02-05 | 厦门金龙汽车新能源科技有限公司 | Electric motor coach double-air pump system and control method thereof |
| CN112319446B (en) * | 2020-11-06 | 2021-08-06 | 厦门金龙汽车新能源科技有限公司 | Electric motor coach double-air pump system and control method thereof |
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