CN211892813U - Driving motor cooling system and electric automobile using same - Google Patents
Driving motor cooling system and electric automobile using same Download PDFInfo
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- CN211892813U CN211892813U CN201922452621.4U CN201922452621U CN211892813U CN 211892813 U CN211892813 U CN 211892813U CN 201922452621 U CN201922452621 U CN 201922452621U CN 211892813 U CN211892813 U CN 211892813U
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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
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a driving motor cooling system and an electric automobile using the same, wherein the driving motor cooling system comprises a first heat dissipation channel in a motor body and a second heat dissipation channel in a motor controller, and also comprises a compression device and a condensation device, the first heat dissipation channel is communicated with the second heat dissipation channel and is provided with a coolant inlet and a coolant outlet, the coolant inlet is communicated with the condensation device, the condensation device is communicated with the coolant outlet through the compression device, the coolant is arranged in the first heat dissipation channel, the liquid coolant absorbs heat in the second heat dissipation channel and the first heat dissipation channel and is changed into a gas state to enter the compression device, the gas coolant is compressed by the compression device and is changed into a liquid state, and the gas coolant is cooled by the condensation device and flows back to the coolant inlet under the action of the compression device. The cooling efficiency of the motor system is greatly improved through the phase change process of the coolant liquid → gas → liquid; the cooling efficiency is stable.
Description
The technical field is as follows:
the utility model relates to a driving motor cooling system and electric automobile who uses thereof.
Background art:
the driving motor used by the existing new energy automobile comprises a motor body and a motor controller, the temperature of the driving motor can rise when the driving motor operates under different working conditions of the automobile, and therefore a cooling system needs to be added to dissipate heat of the driving motor, most of the existing cooling system adopts an air-cooled or water-cooled cooling mode, but the existing cooling system has many defects: 1. the air cooling comprises natural air cooling or forced air cooling, and as the heat dissipation efficiency is not high than the liquid cooling efficiency, the cooling method is basically cancelled at present (except for special requirements); 2. under individual limit working conditions (such as peak power/torque output), the temperature rising speed of the motor and the controller thereof is extremely high, the heat dissipation effects of water cooling and air cooling are slow, and the limit state of special requirements of a vehicle cannot be met; 3. the air cooling and the water cooling can not realize a constant temperature state, and the use requirement under the limit working condition is difficult to meet; 4. when the liquid cooling motor driving system operates for a long time, scale can be formed in the cooling water channel, and the cooling efficiency of the cooling system is reduced.
The invention content is as follows:
the utility model aims at providing a driving motor cooling system and electric automobile who uses thereof, the cooling system radiating efficiency that can solve current driving motor is poor, can't realize the problem of constant temperature state.
The purpose of the utility model is realized by the following technical scheme.
A first object of the utility model is to provide a driving motor cooling system, including setting up the first heat dissipation channel in the motor body and setting up the second heat dissipation channel in the machine controller, its characterized in that: the refrigerant is communicated with the second heat dissipation channel and forms a refrigerant inlet and a refrigerant outlet, the refrigerant inlet and the refrigerant outlet are communicated through the compression device, the refrigerant flows in the first heat dissipation channel, the second heat dissipation channel and the condensing device, the liquid refrigerant absorbs heat in the second heat dissipation channel and the first heat dissipation channel and is changed into mist or gas, the refrigerant enters the compression device through the refrigerant outlet, the mist or gas refrigerant is compressed by the compression device and is changed into liquid, and the refrigerant is cooled by the cooling device and flows back to the refrigerant inlet through the action of the compression device.
The compression device comprises a compressor and a reflux pump, the coolant outlet is communicated with the condensing device through the compressor, and the condensing device is communicated with the coolant inlet through the reflux pump.
The compressor adjusts the compression amount of the coolant according to the obtained temperature data, absorbs different heat productivity by adjusting the working states of the compression device and the condensing device, and enables the motor body and the motor controller to achieve the best working state, so that the purpose of constant temperature control can be achieved.
The condensing device comprises a condensing coil and a heat dissipation fan, two ports of the condensing coil are communicated with a coolant inlet and a coolant outlet through a compression device, and the heat dissipation fan is opposite to the condensing coil and dissipates heat to the condensing coil.
The first heat dissipation channel is provided with a first inlet and a first outlet, the second heat dissipation channel is provided with a second inlet and a second outlet, the first inlet is communicated with the second outlet, the second inlet forms the coolant inlet, and the first outlet forms the coolant outlet.
The motor body comprises the rotor assembly, the stator assembly and the motor shell, and the first heat dissipation channel is arranged in the motor shell.
The motor controller comprises a box body, and a power device IGBT assembly, a thin film capacitor and a main control board which are arranged in the box body, wherein the second heat dissipation channel is arranged in the box body, and the IGBT assembly is attached to the side of the second heat dissipation channel.
A second object of the utility model is to provide an electric automobile, including driving motor, driving motor includes motor body and machine controller, and motor body dispels the heat through driving motor cooling system with machine controller, its characterized in that: the driving motor cooling system is the motor cooling system.
The air conditioner system comprises a compression device, and the driving motor cooling system and the air conditioner system share the same compression device.
Compared with the prior art, the utility model, following effect has:
1) drive motor cooling system, including setting up the first heat dissipation channel in the motor body and setting up the second heat dissipation channel in motor controller, its characterized in that: the first heat dissipation channel is communicated with the second heat dissipation channel and is provided with a coolant inlet and a coolant outlet, the coolant inlet and the condensing device are communicated with the coolant outlet through the compression device, the coolant flows in the first heat dissipation channel, the second heat dissipation channel and the condensing device, the liquid coolant absorbs heat in the second heat dissipation channel and the first heat dissipation channel and is changed into mist or gas, the mist or gas coolant enters the compression device through the coolant outlet, the mist or gas coolant is compressed by the compression device and is changed into liquid, and then the liquid coolant is cooled by the cooling device and flows back to the coolant inlet through the action of the compression device; the cooling system has simple structure; the cooling efficiency of the motor system can be greatly improved through the phase change process of the coolant liquid → gas → liquid; the cooling pipeline is not blocked, and the cooling efficiency of the motor system in long-term operation is not affected.
2) Other advantages of the present invention will be described in detail in the examples section.
Description of the drawings:
fig. 1 is a schematic structural diagram of a cooling system of a driving motor according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a motor controller in the cooling system of the drive motor;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic structural diagram of a motor body in a cooling system of a driving motor;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
fig. 6 is a control schematic diagram of the electric vehicle of the second embodiment for the cooling system of the drive motor.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the following detailed description of preferred embodiments and accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 to 5, the present embodiment provides a drive motor cooling system including a first heat dissipation channel 11 disposed in a motor body 1 and a second heat dissipation channel 21 disposed in a motor controller 2, and is characterized in that: the condensing unit comprises a first heat dissipation channel 11, a second heat dissipation channel 21, a first heat dissipation channel 4, a second heat dissipation channel 21 and a condensing unit 3, wherein the first heat dissipation channel 11 is communicated with the second heat dissipation channel 21 and is provided with a coolant inlet 51 and a coolant outlet 52, the coolant is communicated between the coolant inlet 51 and the condensing unit 3 and between the condensing unit 3 and the coolant outlet 52 through the compressing unit 4, the coolant flows in the first heat dissipation channel 11, the second heat dissipation channel 21 and the condensing unit 3, the liquid coolant absorbs heat in the second heat dissipation channel 21 and the first heat dissipation channel 11 and is changed into a mist state or a gas state and enters the compressing unit 4 through the coolant outlet 52, the mist state or the gas state coolant is compressed into a liquid state through the compressing unit 4, and is cooled by the condensing unit 3 and flows back to the coolant. The cooling system has simple structure; the cooling efficiency of the motor system can be greatly improved through the phase change process of the coolant state liquid → gas → liquid; the cooling pipeline is not blocked, and the cooling efficiency of the motor system in long-term operation is not affected.
The above-mentioned compression device 4 includes a compressor 41 and a reflux pump 42, the refrigerant outlet 52 is communicated with the condensing device 3 through the compressor 41, and the condensing device 3 is communicated with the refrigerant inlet 51 through the reflux pump 42.
The motor further comprises a heat monitoring device 7, the heat monitoring device 7 monitors the temperature of the motor body 1 and the temperature of the motor controller 2, the compressor 41 adjusts the compression amount of the coolant according to the obtained temperature data, and different heat productivity is absorbed by adjusting the working states of the compression device 4 and the condensation device 3, so that the motor body 1 and the motor controller 2 reach the optimal working state, the purpose of constant temperature control can be achieved, and the temperature of the coolant at the coolant inlet 51 is controlled to be constant.
The condensing device 3 includes a condensing coil 31 and a heat dissipation fan 32, two ports of the condensing coil 31 are communicated with a coolant inlet 51 and a coolant outlet 52 through a compression device 4, and the heat dissipation fan 32 is opposite to the condensing coil 31 and dissipates heat to the condensing coil 31. The condensing device has simple structure, small volume and good heat dissipation effect.
The coolant may be freon, but is not limited thereto.
The first heat dissipation channel 11 is provided with a first inlet 12 and a first outlet 13, the second heat dissipation channel 21 is provided with a second inlet 22 and a second outlet 23, the first inlet 12 is communicated with the second outlet 23, the second inlet 22 forms the coolant inlet 51, and the first outlet 13 forms the coolant outlet 52. The temperature of the motor body 1 is higher than that of the motor controller 2, the coolant firstly passes through the motor controller 2 with lower temperature, the coolant is changed into mist state and gaseous state in the second heat dissipation channel 21, and then passes through the motor body 1 with higher temperature, the mist state or gaseous state coolant is completely changed into gaseous state in the first heat dissipation channel 11, and the heat transfer is more reasonable.
The motor body 1 includes a rotor assembly 14, a stator assembly 15 and a motor casing 16, the stator assembly 15 is embedded in the motor casing 16, and the first heat dissipation channel 11 is disposed in the motor casing 16.
The motor controller 2 comprises a box body 24, and a power device IGBT component 25, a thin film capacitor 26 and a main control board 27 which are installed in the box body 24, wherein the second heat dissipation channel 21 is arranged in the box body 24, and the IGBT component 25 is attached to and arranged beside the second heat dissipation channel 21.
Example two:
the embodiment provides an electric automobile, including driving motor, driving motor includes motor body 1 and machine controller 2, and motor body 1 dispels the heat through driving motor cooling system with machine controller 2, its characterized in that: the cooling system of the driving motor is the cooling system of the motor in the first embodiment.
The air conditioner system comprises a compression device, and the driving motor cooling system and the air conditioner system share the same compression device. The system structure is simplified, and the cost is saved.
As shown in fig. 6, the heat monitoring device 7 is a temperature sensor, the heat monitoring device 7 is connected to the vehicle controller 8, and the vehicle controller 8 controls the operation of the compression device 4 and the condensation device 3 of the driving motor cooling system according to the temperature data measured by the heat monitoring device 7.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement modes, and are all included in the scope of the present invention.
Claims (9)
1. A driving motor cooling system comprises a first heat dissipation channel (11) arranged in a motor body (1) and a second heat dissipation channel (21) arranged in a motor controller (2), and is characterized in that: the heat pump unit further comprises a compression device (4) and a condensation device (3), the first heat dissipation channel (11) is communicated with the second heat dissipation channel (21) and is provided with a coolant inlet (51) and a coolant outlet (52), the coolant inlet (51) is communicated with the condensation device (3), the condensation device (3) is communicated with the coolant outlet (52) through the compression device (4), and the coolant is arranged in the first heat dissipation channel (11), the liquid coolant flows in the second heat dissipation channel (21) and the condensing device (3), the liquid coolant absorbs heat in the second heat dissipation channel (21) and the first heat dissipation channel (11) and changes into mist state or gas state and enters the compressing device (4) through the coolant outlet (52), the mist state or gas state coolant is compressed by the compressing device (4) to change into liquid state, and then the liquid coolant is cooled by the condensing device (3) and flows back to the coolant inlet (51) under the action of the compressing device (4).
2. The drive motor cooling system according to claim 1, wherein: the compression device (4) comprises a compressor (41) and a reflux pump (42), the coolant outlet (52) is communicated with the condensation device (3) through the compressor (41), and the condensation device (3) is communicated with the coolant inlet (51) through the reflux pump (42).
3. The drive motor cooling system according to claim 2, wherein: the temperature control device is characterized by further comprising a heat monitoring device (7), the heat monitoring device (7) monitors the temperature of the motor body (1) and the temperature of the motor controller (2), the compressor (41) adjusts the compression amount of the coolant according to the obtained temperature data, and different heating amounts are absorbed by adjusting the working states of the compression device (4) and the condensing device (3), so that the motor body (1) and the motor controller (2) can reach the optimal working state, and the purpose of constant temperature control can be achieved.
4. The drive motor cooling system according to claim 1, wherein: condensing equipment (3) are including condensing coil (31) and radiator fan (32), and two ports of condensing coil (31) pass through compressor arrangement (4) and coolant entry (51), coolant outlet (52) intercommunication, and radiator fan (32) just dispel the heat to condensing coil (31).
5. The drive motor cooling system according to any one of claims 1 to 4, wherein: the first heat dissipation channel (11) is provided with a first inlet (12) and a first outlet (13), the second heat dissipation channel (21) is provided with a second inlet (22) and a second outlet (23), the first inlet (12) is communicated with the second outlet (23), the second inlet (22) forms the coolant inlet (51), and the first outlet (13) forms the coolant outlet (52).
6. The drive motor cooling system according to claim 5, wherein: the motor body (1) comprises a rotor assembly (14), a stator assembly (15) and a motor shell (16), and the first heat dissipation channel (11) is arranged in the motor shell (16).
7. The drive motor cooling system according to claim 6, wherein: the motor controller (2) comprises a box body (24), and a power device IGBT assembly (25), a thin film capacitor (26) and a main control board (27) which are arranged in the box body (24), wherein the second heat dissipation channel (21) is arranged in the box body (24), and the IGBT assembly (25) is attached to the side of the second heat dissipation channel (21).
8. The utility model provides an electric automobile, includes driving motor, and driving motor includes motor body (1) and machine controller (2), and motor body (1) dispels the heat through driving motor cooling system with machine controller (2), its characterized in that: the drive motor cooling system is the motor cooling system according to any one of claims 1 to 7.
9. An electric vehicle according to claim 8, characterized in that: the air conditioner system comprises a compressor, and the driving motor cooling system and the air conditioner system share one compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922452621.4U CN211892813U (en) | 2019-12-28 | 2019-12-28 | Driving motor cooling system and electric automobile using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922452621.4U CN211892813U (en) | 2019-12-28 | 2019-12-28 | Driving motor cooling system and electric automobile using same |
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| Publication Number | Publication Date |
|---|---|
| CN211892813U true CN211892813U (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922452621.4U Active CN211892813U (en) | 2019-12-28 | 2019-12-28 | Driving motor cooling system and electric automobile using same |
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| Country | Link |
|---|---|
| CN (1) | CN211892813U (en) |
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2019
- 2019-12-28 CN CN201922452621.4U patent/CN211892813U/en active Active
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Effective date of registration: 20230329 Address after: 201100 No. 322, Lane 953, Jianchuan Road, Minhang District, Shanghai Patentee after: SHANGHAI EDRIVE Co.,Ltd. Address before: 528400 Guangdong province Zhongshan City West sirlon third industrial zone Patentee before: ZHONGSHAN BROAD-OCEAN MOTOR Co.,Ltd. |