CN210431099U - Mixed cooling structure of motor - Google Patents
Mixed cooling structure of motor Download PDFInfo
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- CN210431099U CN210431099U CN202020151642.2U CN202020151642U CN210431099U CN 210431099 U CN210431099 U CN 210431099U CN 202020151642 U CN202020151642 U CN 202020151642U CN 210431099 U CN210431099 U CN 210431099U
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Abstract
The utility model provides a motor hybrid cooling structure, which comprises a shell, a stator fixed on the inner wall of the shell and a rotor which is arranged along the axial direction of the shell and can rotate relative to the shell, wherein a heat dissipation water jacket which can be passed by cooling liquid is arranged in the shell along the axial direction, the heat dissipation water jacket forms thermal contact with the stator, and both ends of the heat dissipation water jacket are respectively provided with a water inlet and a water outlet which are communicated with the outside; an axial ventilation channel is formed in the shell along the axial direction, and a centrifugal impeller is connected to one end of a rotor shaft of the rotor in a synchronous rotating mode. The utility model discloses a water-cooling heat radiation structure stack forced air cooling heat radiation structure makes the heat of stator and rotor can both in time discharge, has improved the radiating efficiency, moreover the utility model discloses an forced air cooling heat radiation structure does not have air intake and air outlet for closed inner loop structure, therefore the noise is low, and the environmental friendliness degree is high.
Description
Technical Field
The utility model relates to a motor cooling structure.
Background
When the motor works, a stator and a rotor of the motor can generate a large amount of heat, so that the temperature of a winding is too high and exceeds the tolerance temperature of a winding insulation paint film, the insulation on the surface of a winding is damaged, the motor is short-circuited, and the motor cannot work or even burn; in addition, the temperature of the magnetic steel on the rotor is too high and exceeds the temperature of the magnetic steel for generating irreversible demagnetization, so that the magnetic steel can generate irreversible demagnetization, the performance of the motor is seriously damaged, and even the motor cannot work.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a motor hybrid cooling structure through adopting the hybrid cooling mode, improves the motor cooling effect, reduces the highest operating point temperature of stator and rotor, guarantees motor working property, improves motor life.
In order to achieve the above object, the utility model adopts the following technical scheme:
a hybrid cooling structure of an electric motor, comprising a housing, a stator fixed to an inner wall of the housing, and a rotor arranged in an axial direction of the housing and rotatable relative to the housing, the housing being made of metal, characterized in that:
a heat dissipation water jacket which can be used for cooling liquid to pass through is axially arranged in the shell, the heat dissipation water jacket is in thermal contact with the stator, and a water inlet and a water outlet which are communicated with the outside are respectively arranged at two ends of the heat dissipation water jacket;
an axial ventilation channel is formed in the shell along the axial direction, and a centrifugal impeller is connected to one end of a rotor shaft of the rotor in a synchronous rotating mode.
The mixed cooling structure of motor, wherein: the casing comprises preceding sealed lid, casing and the sealed lid of back that meet in proper order along the axial, the both ends of the rotor shaft of rotor respectively with preceding sealed lid, the sealed lid of back rotationally connect, heat dissipation water jacket and axial ventilation passageway all set up in the casing.
The mixed cooling structure of motor, wherein: the one end of casing is equipped with the front end housing that radially pastes in the rotor shaft, and the other end is equipped with the rear end housing that radially pastes in the rotor shaft, has the clearance between front end housing and the preceding sealed lid, also has the clearance between rear end housing and the rear seal lid to the one end that is close to the rotor shaft on front end housing, the rear end housing is equipped with preceding ventilation hole, the back ventilation hole that the axial is link up.
The mixed cooling structure of motor, wherein: the case is made of metal.
The mixed cooling structure of motor, wherein: the water inlet and the water outlet are connected with a cooling liquid power mechanism and a heat dissipation mechanism which are arranged outside the shell in a circulating manner.
The mixed cooling structure of motor, wherein: the heat radiation water jacket is a spiral water jacket or an axial water jacket.
The mixed cooling structure of motor, wherein: the cooling liquid is water, glycol water solution or cooling engine oil.
The mixed cooling structure of motor, wherein: the axial ventilation channel is positioned between the heat radiation water jacket and the outer layer of the shell.
The mixed cooling structure of motor, wherein: one or more cooling fins are added to the axial ventilation channel.
The utility model discloses a water-cooling heat radiation structure stack forced air cooling heat radiation structure makes the heat of stator and rotor can both in time discharge, has improved the radiating efficiency, moreover the utility model discloses an forced air cooling heat radiation structure does not have air intake and air outlet for closed inner loop structure, therefore the noise is low, and the environmental friendliness degree is high.
Drawings
Fig. 1 is a longitudinal section of a hybrid cooling structure of an electric motor according to the present invention.
Fig. 2 is an axial schematic view of the combination of the casing and the spiral water jacket.
Fig. 3 is a schematic structural view of a heat dissipation channel with an additional heat sink.
Description of reference numerals: 1-a rotor; 2-rear vent hole; 3-rear sealing cover; 4-rear end cap; 5-a machine shell; 6-axial ventilation channel; 7-a stator; 8-spiral water jacket; 9-front end cover; 10-front sealing cover; 11-front vent; 12-a centrifugal impeller; 13-heat sink.
Detailed Description
As shown in fig. 1 and fig. 2, the utility model provides a motor hybrid cooling structure, include:
the shell consists of a front sealing cover 10, a shell 5 and a rear sealing cover 3 which are connected in sequence;
the rotor 1 is arranged in the shell, and two ends of the rotor are respectively and rotatably connected with the front sealing cover 10 and the rear sealing cover 3;
and the stator 7 is fixed on the inner wall of the shell 5 and is opposite to the rotor 1.
In order to form a water-cooling heat dissipation structure, a spiral water jacket 8 is formed in the casing 5, one end of the spiral water jacket 8 is provided with a water inlet, the other end of the spiral water jacket 8 is provided with a water outlet, and the water inlet and the water outlet are circularly connected with a power mechanism (such as a water pump) and a heat dissipation mechanism (such as a heat dissipation fin) arranged outside the casing.
In order to form an air cooling heat dissipation structure, an axial ventilation channel 6 is formed in the casing 5, a centrifugal impeller 12 is connected to one end of a rotor shaft of the rotor 1 in a synchronous rotating mode, hot air near one end of the rotor shaft is thrown out radially outwards by means of rotation of the centrifugal impeller 12, the hot air flows from one end to the other end of the axial ventilation channel 6 and is cooled through indirect thermal contact of the casing 5 with a water cooling heat dissipation structure and external air in the flowing process, the cooled air returns to the position of the centrifugal impeller 12 after passing through a gap between the rotor 1 and the stator 7 and absorbing heat from the other end of the rotor shaft, and heat exchange circulation is completed.
In order to form a better air cooling and heat dissipation effect, a front end cover 9 which is close to the rotor shaft in the radial direction is arranged at one end of a shell 5, a rear end cover 4 which is close to the rotor shaft in the radial direction is arranged at the other end of the shell, a gap is formed between the front end cover 9 and a front sealing cover 10, a gap is also formed between the rear end cover 4 and a rear sealing cover 3, and a front vent hole 11 and a rear vent hole 12 which are communicated in the axial direction are arranged at one ends, close to the rotor shaft, of the front end cover 9 and the rear end cover 4, so that the air flow path can.
The housing 5 is preferably made of a material (e.g., metal) with good heat dissipation.
In the above embodiment, the spiral water jacket 8 may be replaced by an axial water jacket; the cooling liquid of the water cooling heat dissipation structure can be selected from water, glycol aqueous solution or cooling machine oil, and glycol aqueous solution is preferably used. The cooling process is as follows: microthermal coolant liquid gets into spiral water jacket 8 through spiral water jacket 8's water inlet, utilizes the flow of coolant liquid in spiral water jacket 8, fully absorbs the heat of conducting to casing 5 by stator 7, has absorbed thermal high temperature coolant liquid at last and has discharged through the delivery port, becomes microthermal coolant liquid again after cooling down through outside heat dissipation mechanism, flows to the water inlet once more.
In the above embodiment, the axial ventilation channel 6 is preferentially located between the spiral water jacket 8 and the outer layer of the casing 5, as shown in fig. 3, one or more cooling fins 13 may be further added to the axial ventilation channel 6 to improve the heat dissipation effect. High-temperature air on the surface of the rotor 1 is pumped out from the front end cover 9 through the air blowing effect of the centrifugal impeller 12 and is diffused outwards in the radial direction of the impeller to enter the axial ventilation channel 6 in the machine shell 5, the high-temperature air flows through the axial ventilation channel 6, one part of the high-temperature air is cooled by cooling liquid in the cooling water jacket, one part of the high-temperature air is cooled by ambient air outside the machine shell 5, and finally the cooled low-temperature air flows back to the interior of the motor through the rear end cover 4 to cool the surface of the rotor 1.
The utility model discloses a water-cooling heat radiation structure stack forced air cooling heat radiation structure makes stator 7 and rotor 1's heat can both in time discharge, has improved the radiating efficiency, moreover the utility model discloses an forced air cooling heat radiation structure is closed inner loop structure, does not have air intake and air outlet, and consequently the noise is low, and the environmental friendliness degree is high.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A hybrid cooling structure of an electric motor, comprising a housing, a stator fixed on an inner wall of the housing, and a rotor arranged in an axial direction of the housing and rotatable relative to the housing, characterized in that:
a heat dissipation water jacket which can be used for cooling liquid to pass through is axially arranged in the shell, the heat dissipation water jacket is in thermal contact with the stator, and a water inlet and a water outlet which are communicated with the outside are respectively arranged at two ends of the heat dissipation water jacket;
an axial ventilation channel is formed in the shell along the axial direction, and a centrifugal impeller is connected to one end of a rotor shaft of the rotor in a synchronous rotating mode.
2. The electric motor hybrid cooling structure of claim 1, wherein: the casing comprises preceding sealed lid, casing and the sealed lid of back that meet in proper order along the axial, the both ends of the rotor shaft of rotor respectively with preceding sealed lid, the sealed lid of back rotationally connect, heat dissipation water jacket and axial ventilation passageway all set up in the casing.
3. The electric motor hybrid cooling structure of claim 2, wherein: the one end of casing is equipped with the front end housing that radially pastes in the rotor shaft, and the other end is equipped with the rear end housing that radially pastes in the rotor shaft, has the clearance between front end housing and the preceding sealed lid, also has the clearance between rear end housing and the rear seal lid to the one end that is close to the rotor shaft on front end housing, the rear end housing is equipped with preceding ventilation hole, the back ventilation hole that the axial is link up.
4. The electric motor hybrid cooling structure of claim 2, wherein: the case is made of metal.
5. The electric motor hybrid cooling structure of claim 1, wherein: the water inlet and the water outlet are connected with a cooling liquid power mechanism and a heat dissipation mechanism which are arranged outside the shell in a circulating manner.
6. The electric motor hybrid cooling structure of claim 1, wherein: the heat radiation water jacket is a spiral water jacket or an axial water jacket.
7. The electric motor hybrid cooling structure of claim 1, wherein: the cooling liquid is water, glycol water solution or cooling engine oil.
8. The electric motor hybrid cooling structure of claim 1, wherein: the axial ventilation channel is positioned between the heat radiation water jacket and the outer layer of the shell.
9. The electric motor hybrid cooling structure of claim 1, wherein: one or more cooling fins are added to the axial ventilation channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020151642.2U CN210431099U (en) | 2020-02-04 | 2020-02-04 | Mixed cooling structure of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020151642.2U CN210431099U (en) | 2020-02-04 | 2020-02-04 | Mixed cooling structure of motor |
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| Publication Number | Publication Date |
|---|---|
| CN210431099U true CN210431099U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020151642.2U Active CN210431099U (en) | 2020-02-04 | 2020-02-04 | Mixed cooling structure of motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969791A (en) * | 2020-08-18 | 2020-11-20 | 中国第一汽车股份有限公司 | Oil-water mixed cooling motor system and vehicle |
| CN112615478A (en) * | 2020-12-04 | 2021-04-06 | 电子科技大学中山学院 | New energy automobile electricity driving system capable of achieving heat dissipation circularly |
| CN114017365A (en) * | 2021-11-12 | 2022-02-08 | 海南极锐浩瀚动力***科技有限公司 | High-speed air suspension compressor for fuel cell with enclosed stator, fuel cell system and vehicle |
-
2020
- 2020-02-04 CN CN202020151642.2U patent/CN210431099U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969791A (en) * | 2020-08-18 | 2020-11-20 | 中国第一汽车股份有限公司 | Oil-water mixed cooling motor system and vehicle |
| CN112615478A (en) * | 2020-12-04 | 2021-04-06 | 电子科技大学中山学院 | New energy automobile electricity driving system capable of achieving heat dissipation circularly |
| CN114017365A (en) * | 2021-11-12 | 2022-02-08 | 海南极锐浩瀚动力***科技有限公司 | High-speed air suspension compressor for fuel cell with enclosed stator, fuel cell system and vehicle |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210628 Address after: 527326 Building 2, area o, Foshan (Yunfu) industrial transfer park, Silao Town, Yuncheng district, Yunfu City, Guangdong Province Patentee after: Steady Power (Guangdong) Technology Co.,Ltd. Address before: 100176 8th floor, guipai building, 51-2 Jingyuan North Street, Yizhuang Economic and Technological Development Zone, Daxing District, Beijing Patentee before: BEIJING WENLI TECH Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210929 Address after: Room 101, 1f, building 5, yard 9, Fengyuan street, Daxing District, Beijing 100162 Patentee after: BEIJING WENLI TECH Co.,Ltd. Address before: 527326 Building 2, area o, Foshan (Yunfu) industrial transfer park, Silao Town, Yuncheng district, Yunfu City, Guangdong Province Patentee before: Steady Power (Guangdong) Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220622 Address after: 527326 Building 2, area o, Foshan (Yunfu) industrial transfer park, Silao Town, Yuncheng district, Yunfu City, Guangdong Province Patentee after: Steady Power (Guangdong) Technology Co.,Ltd. Address before: Room 101, 1f, building 5, yard 9, Fengyuan street, Daxing District, Beijing 100162 Patentee before: BEIJING WENLI TECH Co.,Ltd. |
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| TR01 | Transfer of patent right |