CN114448151A - Cooling system of new energy automobile hub motor - Google Patents
Cooling system of new energy automobile hub motor Download PDFInfo
- Publication number
- CN114448151A CN114448151A CN202111592368.8A CN202111592368A CN114448151A CN 114448151 A CN114448151 A CN 114448151A CN 202111592368 A CN202111592368 A CN 202111592368A CN 114448151 A CN114448151 A CN 114448151A
- Authority
- CN
- China
- Prior art keywords
- cooling
- hub motor
- energy automobile
- new energy
- cooling system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 123
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 238000001035 drying Methods 0.000 claims description 10
- 238000004378 air conditioning Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 4
- 239000003507 refrigerant Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
Abstract
The invention discloses a cooling system of a new energy automobile hub motor, which comprises a condenser, a liquid storage tank, an expansion valve, an air conditioner evaporator and a compressor, wherein the condenser, the liquid storage tank, the expansion valve, the air conditioner evaporator and the compressor are sequentially connected end to form a cooling loop, and a cooling channel of the new energy automobile hub motor is connected between the expansion valve and the compressor and is connected with the air conditioner evaporator in parallel. The invention has the advantages of improving the cooling efficiency, reducing the volume of the equipment and the like.
Description
Technical Field
The invention relates to a new energy automobile, in particular to a cooling system of an automobile hub motor of new energy.
Background
The new energy automobile driven by the hub motor has the advantages of compact structure, few transmission parts, low energy loss and the like. However, the hub motor integrates a power system, a transmission system and a braking system in the automobile hub and has high requirement on sealing performance, so that heat generated in the operation process of the hub motor is difficult to be discharged through air, the service life of the motor is shortened, and the stable operation of the motor is influenced. Therefore, how to effectively cool the in-wheel motor is a major key point for improving the performance of the new energy automobile.
At present, the common cooling modes of the hub motor are wind cooling and water cooling. The air cooling increases the heat dissipation area by increasing the heat dissipation fins, natural wind is driven by the rotation of the hub to dissipate heat, the heat dissipation effect is poor, and the number of parts in the hub is large, so that the air circulation is difficult, and the heat dissipation requirement of the hub motor is difficult to meet; the water cooling structure needs to arrange a water tank and then is connected with each driving wheel, so that more parts are needed, and the arrangement of a chassis is influenced; in addition, the cooling effect of water cooling is better than that of air cooling, but is slower than that of refrigerant cooling, and the energy saving performance is inferior to that of refrigerant cooling.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a cooling system of a new energy automobile hub motor, which is beneficial to improving the cooling efficiency and reducing the equipment volume.
In order to solve the technical problems, the invention adopts the following technical scheme:
the cooling system of the new energy automobile hub motor comprises a condenser, a liquid storage tank, an expansion valve, an air conditioner evaporator and a compressor which are sequentially connected end to form a cooling loop, wherein a cooling channel of the new energy automobile hub motor is connected between the expansion valve and the compressor and is connected with the air conditioner evaporator in parallel.
As a further improvement of the above technical solution:
the hub motor comprises a central shaft, a support, a stator core, a stator coil and a permanent magnet rotor, wherein the support is installed on the central shaft, the stator core is installed on the support, the stator coil is installed on the stator core, the permanent magnet rotor is arranged on a hub, and a cooling channel is arranged on the central shaft, the support and the stator core.
And the inlet and the outlet of the cooling channel are arranged on the central shaft.
The cooling channel is wound on the periphery of the stator core.
The stator core is circumferentially provided with a groove in a winding mode, a cooling pipeline is arranged in the groove, and the cooling channel is formed in the cooling pipeline.
The groove is in a radial Z shape.
The cooling pipeline is a copper pipe.
And an insulating heat conductor is filled between the stator core and the cooling pipeline.
The insulating heat conductor is heat conduction silica gel.
The cooling system of the new energy automobile hub motor further comprises a drying filter, wherein an inlet of the drying filter is connected with the liquid storage tank, and an outlet of the drying filter is connected with the expansion valve.
Compared with the prior art, the invention has the advantages that:
this new energy automobile wheel hub motor, including head and the tail connect gradually the condenser, liquid storage pot, expansion valve, air conditioner evaporimeter and the compressor that form cooling circuit, new energy automobile's wheel hub motor's cooling channel connects between expansion valve and compressor, parallelly connected with air conditioner evaporimeter. Set up in new energy automobile's air conditioning system's cooling circuit with in-wheel motor, need not additionally add solitary cooling circuit, air conditioning system's refrigerant cools off in-wheel motor through cooling channel, and simple structure avoids setting up too much parts (like the water tank, water pump etc.) at the vehicle bottom, influences the chassis and arranges, has reduced equipment volume, has saved the vehicle space, and the refrigerant cooling is for the water-cooling, has promoted cooling efficiency, and energy-conservation nature is good.
Further, this new forms of energy automobile wheel hub motor, in-wheel motor include center pin, support, stator core, stator coil and permanent magnet rotor, and the support mounting is on the center pin, and stator core installs on the support, and stator coil installs on stator core, and on the wheel hub was located to the permanent magnet rotor, cooling channel located on center pin, support and the stator core. Specifically, the cooling channel sequentially passes through the central shaft and the support to enter the stator core, and then is output along the support and the central shaft, a low-pressure liquid refrigerant enters the hub motor through the expansion valve and then sequentially passes through the central shaft, the support and the stator core to be cooled, and after cooling, the refrigerant is changed into a low-pressure gas state and then enters the compressor.
Further, this new forms of energy automobile wheel hub motor, cooling channel are around locating stator core's week side. The contact area of the cooling channel and the stator core is increased, the cooling efficiency is improved, and the cooling effect is improved.
Furthermore, this new forms of energy automobile wheel hub motor, cooling tube are the copper pipe. The copper pipe has good compression resistance and heat conductivity, and can improve cooling efficiency and cooling effect.
Further, this cooling system of new forms of energy automobile wheel hub motor still includes drier-filter, drier-filter's entry and liquid storage pot are connected, and the export is connected with the expansion valve. The drying filter can remove impurities and filter high-pressure liquid refrigerant entering from the liquid storage tank, so that the cooling effect is indirectly improved.
Drawings
FIG. 1 is a schematic structural diagram of a cooling system of an automobile hub motor of new energy resources.
Fig. 2 is a schematic structural diagram of the hub motor of the cooling system of the new energy automobile hub motor.
FIG. 3 is a layout diagram of cooling pipes on a stator core of the cooling system of the new energy automobile hub motor.
The reference numerals in the figures denote: 1. a condenser; 2. a liquid storage tank; 3. an expansion valve; 4. an air conditioning evaporator; 5. a compressor; 6. a hub motor; 61. a central shaft; 62. a support; 63. a stator core; 64. a stator coil; 65. a permanent magnet rotor; 66. a groove; 661. an axial slot; 662. connecting grooves; 7. a cooling channel; 8. a hub; 9. and drying the filter.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
Fig. 1 to 3 show an embodiment of a cooling system of a new energy automobile hub motor according to the present invention, the cooling system of the new energy automobile hub motor of the present embodiment includes a condenser 1, a liquid storage tank 2, an expansion valve 3, an air conditioner evaporator 4, and a compressor 5, which are sequentially connected end to form a cooling circuit, and a cooling channel 7 of an in-wheel motor 6 of a new energy automobile is connected between the expansion valve 3 and the compressor 5, and is connected in parallel with the air conditioner evaporator 4.
A cooling loop formed by sequentially connecting the condenser 1, the liquid storage tank 2, the expansion valve 3, the air-conditioning evaporator 4 and the compressor 5 end to end is a cooling loop of an original vehicle-mounted air-conditioning system of the new energy automobile, and the hub motor 6 of the new energy automobile is positioned in the center of a hub 8 of the new energy automobile. This new energy automobile wheel hub motor sets up in new energy automobile's air conditioning system's cooling circuit with in-wheel motor 6, need not additionally add solitary cooling circuit, air conditioning system's refrigerant cools off in-wheel motor 6 through cooling channel 7, moreover, the steam generator is simple in structure, avoid setting up too much parts (like the water tank, water pump etc.) at the vehicle bottom, influence the chassis and arrange, reduced the equipment volume, saved the vehicle space, and the refrigerant cooling is for the water-cooling, the cooling efficiency has been promoted, energy-conservation nature is good.
The working process of the cooling system of the new energy automobile hub motor is as follows: the liquid refrigerant of high pressure flows into the expansion valve 3 by the liquid storage pot 2, become low pressure liquid, the liquid refrigerant of low pressure gets into wheel hub motor 6 through cooling channel 7 on one hand, cool off wheel hub motor 6, another way gets into air conditioner evaporimeter 4, cool off air conditioner evaporimeter 4, two cooling routes do not influence each other, after the cooling finishes, the liquid cold coal of low pressure becomes the low pressure gaseous state, and flow equalizes into compressor 5, compressor 5 compresses the liquid refrigerant of low pressure into the high pressure gaseous state, the gaseous refrigerant of high pressure gets into condenser 1, get into liquid storage pot 2 after becoming the high pressure liquid state, carry out next cooling cycle.
In the present embodiment, as shown in fig. 2, the in-wheel motor 6 includes a central shaft 61, a bracket 62, a stator core 63, a stator coil 64, and a permanent magnet rotor 65, the bracket 62 is mounted on the central shaft 61, the stator core 63 is mounted on the bracket 62, the stator coil 64 is mounted on the stator core 63, the permanent magnet rotor 65 is provided on the wheel hub 8, and the cooling passage 7 is provided on the central shaft 61, the bracket 62, and the stator core 63. Specifically, the cooling channel 7 sequentially passes through the central shaft 61 and the bracket 62 to enter the stator core 63, and then is output along the bracket 62 and the central shaft 61, after entering the in-wheel motor 6 from the expansion valve 3, the low-pressure liquid refrigerant sequentially passes through the central shaft 61, the bracket 62 and the stator core 63 to be cooled, and after cooling, the refrigerant is changed into a low-pressure gas state and then enters the compressor 5.
In this embodiment, the inlet and outlet of the cooling channel 7 are both provided on the central shaft 61. Compact structure avoids influencing the normal rotation of the hub 8.
In the present embodiment, the cooling passage 7 is wound around the stator core 63. The contact area between the cooling channel 7 and the stator core 63 is increased, the cooling efficiency is improved, and the cooling effect is improved.
In this embodiment, the stator core 63 is circumferentially provided with a groove 66, a cooling duct is provided in the groove 66, and the cooling channel 7 is formed in the cooling duct. On one hand, the structure is compact, and the cooling effect is better; on the other hand, the cooling pipeline has certain protection effect.
In this embodiment, the groove 66 is radially zigzag-shaped as shown in fig. 3. Further increase cooling tube and stator core 63's area of contact, improve cooling efficiency, promote the cooling effect. Specifically, the groove 66 includes a plurality of axial slots 661 arranged at intervals around the central axis of the stator core 63 and a plurality of connecting slots 662, the axial slots 661 being parallel to the central axis of the stator core 63, the axial slots 661 being connected in series by the connecting slots 662.
In this embodiment, the cooling pipe is a copper pipe. The copper pipe has good compression resistance and heat conductivity, and can improve cooling efficiency and cooling effect.
In the present embodiment, an insulating heat conductor (not shown in the drawings) is filled between the stator core 63 and the cooling pipe. Further improving the cooling efficiency and cooling effect of the cold coal on the stator core 63. Preferably, the insulating heat conductor is heat-conducting silica gel.
In this embodiment, the cooling system of new forms of energy automobile wheel hub motor still includes drier-filter 9, and drier-filter 9's entry is connected with liquid storage pot 2, and the export is connected with expansion valve 3. The drying filter 8 can remove impurities and filter the high-pressure liquid refrigerant entering from the liquid storage tank 2, so that the cooling effect is indirectly improved.
In this embodiment, the refrigerant is R-134a or R-410 a. The two refrigerants have good cooling effect and can not pollute the environment.
The working process of the cooling system of the new energy automobile hub motor is as follows: liquid refrigerant of high pressure flows into drier-filter 9 by liquid storage pot 2 and carries out the edulcoration after, get into expansion valve 3, become low pressure liquid, liquid refrigerant of low pressure gets into in-wheel motor 6 all the way, cool off center pin 61, support 62 and stator core 63 through cooling tube in proper order, another way gets into air conditioner evaporimeter 4 and cools off air conditioner evaporimeter 4, two cooling routes do not influence each other, after the cooling finishes, liquid refrigerant of low pressure becomes the low pressure gaseous state, and flow equalizes into compressor 5, compressor 5 compresses the liquid refrigerant of low pressure into the high pressure gaseous state, the gaseous refrigerant of high pressure gets into condenser 1, get into liquid storage pot 2 after becoming the high pressure liquid state, carry out next cooling cycle.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed solution, or modify equivalent embodiments using the teachings disclosed above, without departing from the scope of the solution. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. Cooling system of new forms of energy automobile wheel hub motor connects gradually condenser (1), liquid storage pot (2), expansion valve (3), air conditioner evaporimeter (4) and compressor (5) that form cooling circuit including head and the tail, its characterized in that: and a cooling channel (7) of a hub motor (6) of the new energy automobile is connected between the expansion valve (3) and the compressor (5) and is connected with the air-conditioning evaporator (4) in parallel.
2. The cooling system for the new energy automobile hub motor according to claim 1, characterized in that: the hub motor (6) comprises a central shaft (61), a support (62), a stator core (63), a stator coil (64) and a permanent magnet rotor (65), wherein the support (62) is installed on the central shaft (61), the stator core (63) is installed on the support (62), the stator coil (64) is installed on the stator core (63), the permanent magnet rotor (65) is arranged on a hub (8), and a cooling channel (7) is arranged on the central shaft (61), the support (62) and the stator core (63).
3. The cooling system for the new energy automobile hub motor according to claim 2, is characterized in that: and the inlet and the outlet of the cooling channel (7) are arranged on the central shaft (61).
4. The cooling system for the new energy automobile hub motor according to claim 2, is characterized in that: the cooling channel (7) is wound on the periphery of the stator core (63).
5. The cooling system for the new energy automobile hub motor according to claim 4, is characterized in that: stator core (63) week side is around being equipped with recess (66), be equipped with cooling tube in recess (66), cooling channel (7) are formed in cooling tube.
6. The cooling system for the new energy automobile hub motor according to claim 5, is characterized in that: the groove (66) is in a radial zigzag shape.
7. The cooling system of the automobile hub motor of the new energy source as claimed in claim 5, wherein: the cooling pipeline is a copper pipe.
8. The cooling system for the new energy automobile hub motor according to claim 7, is characterized in that: and an insulating heat conductor is filled between the stator core (63) and the cooling pipeline.
9. The cooling system for the new energy automobile hub motor according to claim 8, is characterized in that: the insulating heat conductor is heat conduction silica gel.
10. The cooling system for the new energy automobile hub motor according to any one of claims 1 to 9, characterized in that: the drying and filtering device is characterized by further comprising a drying and filtering device (9), wherein an inlet of the drying and filtering device (9) is connected with the liquid storage tank (2), and an outlet of the drying and filtering device is connected with the expansion valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592368.8A CN114448151A (en) | 2021-12-23 | 2021-12-23 | Cooling system of new energy automobile hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592368.8A CN114448151A (en) | 2021-12-23 | 2021-12-23 | Cooling system of new energy automobile hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114448151A true CN114448151A (en) | 2022-05-06 |
Family
ID=81364707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111592368.8A Pending CN114448151A (en) | 2021-12-23 | 2021-12-23 | Cooling system of new energy automobile hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114448151A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0699725A (en) * | 1992-09-18 | 1994-04-12 | Hitachi Ltd | Cooling system for automotive electrical equipment |
| CN105946511A (en) * | 2016-06-08 | 2016-09-21 | 苏州瑞驱电动科技有限公司 | Cooling system for motor and driver of electric car |
| CN106451844A (en) * | 2016-10-28 | 2017-02-22 | 湘潭电机股份有限公司 | Motor and stator cooling structure thereof |
| WO2018036296A1 (en) * | 2016-08-24 | 2018-03-01 | 上海蔚来汽车有限公司 | Phase change cooling system for power battery of electric vehicle |
| CN208862646U (en) * | 2018-08-28 | 2019-05-14 | 湖北同发机电有限公司 | A kind of stator structure of high rate of heat dispation |
| CN111416450A (en) * | 2020-05-06 | 2020-07-14 | 河南科技大学 | In-wheel motor and in-wheel motor cooling system |
| CN113098183A (en) * | 2021-04-27 | 2021-07-09 | 河南科技大学 | In-wheel motor and in-wheel motor cooling system |
| CN214215469U (en) * | 2021-01-22 | 2021-09-17 | 厦门金龙联合汽车工业有限公司 | Vehicle driving cooling system combined with vehicle-mounted air conditioner |
| CN113644784A (en) * | 2020-05-11 | 2021-11-12 | 上海汽车集团股份有限公司 | Oil cooling driving motor and automobile |
-
2021
- 2021-12-23 CN CN202111592368.8A patent/CN114448151A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0699725A (en) * | 1992-09-18 | 1994-04-12 | Hitachi Ltd | Cooling system for automotive electrical equipment |
| CN105946511A (en) * | 2016-06-08 | 2016-09-21 | 苏州瑞驱电动科技有限公司 | Cooling system for motor and driver of electric car |
| WO2018036296A1 (en) * | 2016-08-24 | 2018-03-01 | 上海蔚来汽车有限公司 | Phase change cooling system for power battery of electric vehicle |
| CN106451844A (en) * | 2016-10-28 | 2017-02-22 | 湘潭电机股份有限公司 | Motor and stator cooling structure thereof |
| CN208862646U (en) * | 2018-08-28 | 2019-05-14 | 湖北同发机电有限公司 | A kind of stator structure of high rate of heat dispation |
| CN111416450A (en) * | 2020-05-06 | 2020-07-14 | 河南科技大学 | In-wheel motor and in-wheel motor cooling system |
| CN113644784A (en) * | 2020-05-11 | 2021-11-12 | 上海汽车集团股份有限公司 | Oil cooling driving motor and automobile |
| CN214215469U (en) * | 2021-01-22 | 2021-09-17 | 厦门金龙联合汽车工业有限公司 | Vehicle driving cooling system combined with vehicle-mounted air conditioner |
| CN113098183A (en) * | 2021-04-27 | 2021-07-09 | 河南科技大学 | In-wheel motor and in-wheel motor cooling system |
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