CN211630022U - High-efficiency axial-flow type magnetic suspension motor air cooling device - Google Patents
High-efficiency axial-flow type magnetic suspension motor air cooling device Download PDFInfo
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- CN211630022U CN211630022U CN201921446729.6U CN201921446729U CN211630022U CN 211630022 U CN211630022 U CN 211630022U CN 201921446729 U CN201921446729 U CN 201921446729U CN 211630022 U CN211630022 U CN 211630022U
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Abstract
The utility model relates to the field of motors, in particular to a high-efficiency axial-flow type magnetic suspension motor air cooling device, which consists of a shell, a magnetic bearing, a stator radiator, a rotor and a fan; the shell comprises a front end cover, a middle section and a rear end cover, the shell is provided with an air inlet and an air outlet, the motor stator is positioned at the middle section of the shell, and the motor rotor is positioned at the central position of the motor stator and the magnetic bearing. The utility model improves the heat dispersion performance of the motor, reduces the temperature rise of the motor, and ensures that the motor can stably run for a long time; the device has the advantages of simple and practical structure, easy processing, low cost, strong operability and good cooling effect.
Description
Technical Field
The utility model belongs to the motor field provides a high efficiency axial-flow type magnetic suspension motor air cooling device very much.
Background
The magnetic suspension motor has the advantages of high rotating speed, high power density and no excitation loss, and is widely concerned by the industry. The magnetic suspension motor is supported by a magnetic suspension bearing, a solid or tile permanent magnet rotor is used, and the rotating speed of the rotor can reach tens of thousands of revolutions per minute or even hundreds of thousands of revolutions per minute. The high-speed motor has higher electromagnetic load and large high-frequency loss in unit volume, partial electric energy is converted into heat energy, and if the heat dissipation effect of the motor is poor, the temperature of the motor is continuously increased; if the stator temperature continues to be too high, the insulation performance of the stator can be damaged, and the motor is damaged.
The air gap between the stator and the rotor of the motor is 0.2-1.5 mm, and the rotor generates large wind friction loss during high-speed rotation, so that the stator and the rotor of the motor generate large heat. If the stator and the rotor of the motor can not effectively dissipate heat, if the temperature of the rotor is too high, the power of the motor is reduced, and the permanent magnet of the rotor can be irreversibly demagnetized.
The motor stator of the high-speed high-power motor is usually cooled by forced water cooling or refrigerant, and the motor rotor is positioned in the motor, so that the heat dissipation is far more difficult than that of the stator, and the motor rotor is mainly cooled by a gap between the stator and the rotor and an axial vent hole at present. This heat dissipation technique has the disadvantages of complex structure, poor reliability and tedious maintenance.
The cooling effect of the magnetic suspension motor is the key for normal operation of the magnetic suspension high-speed motor, and the working efficiency, the service life and the maintenance cost of the magnetic suspension motor are directly influenced.
The present invention is provided in view of this point.
Disclosure of Invention
The utility model provides a high efficiency axial-flow type magnetic suspension motor air cooling device uses the pure air of normal atmospheric temperature to realize the cooling of magnetic suspension high speed motor, has overcome the not enough of current forced air cooling water-cooling mixed cooling technique, ensures that the magnetic suspension motor is high-speed, trouble-free, last operation.
Realize magnetic suspension high speed motor cooling purpose for realizing using the pure air of normal atmospheric temperature, the utility model discloses a following technical scheme:
a high-efficiency axial-flow type magnetic suspension motor air cooling device mainly comprises a shell, a magnetic bearing, a stator radiator, a rotor and a fan; the shell comprises a front end cover, a middle section and a rear end cover, the shell is provided with an air inlet and an air outlet, the motor stator is positioned at the middle section of the shell, and the motor rotor is positioned at the central position of the motor stator and the magnetic bearing.
During the use, magnetic levitation motor receives control system instruction, and the rotor drives and drives the fan rotation, and the normal atmospheric temperature air that filters flows in from the casing air inlet, and recess and air duct on the radiator fin are flowed through, and the stator cooling to the magnetic levitation motor is realized to most heat from the exhaust hole discharge that produces motor stator. The casing adopts the metal casting, and the heat conductivity is good, can give off the heat that the radiator fin conducts to the air in, plays the effect of supplementary cooling.
The utility model discloses an air cooling device adopts the fan with the coaxial installation of rotor, utilizes the work wind channel structure of supporting design, reduces the heat that the high-speed rotation of motor produced to make the more efficient work of magnetic suspension high-speed motor, the lifting means life-span greatly, reduce the fault incidence of equipment, reduced the maintenance number of times, practiced thrift use cost, the utility model relates to a rationally, simple structure, facilitate promotion is used.
Drawings
FIG. 1 is a schematic view of the housing of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the cooling structure of the present invention;
fig. 4 is a schematic structural diagram of the air-cooled radiator of the present invention.
In the figure, 5, a motor rotor; 6. a fan; 7. an axial magnetic bearing; 11. a front flange; 12. a middle section of the shell; 13. a rear flange; 14. an air inlet; 15. an exhaust port; 21. a stator lamination; 22. a stator winding; 23. A finned heat sink; 30. a front-end radial magnetic bearing; 31. a front radial magnetic bearing housing; 32. a vent hole; 40. a front-end radial magnetic bearing; 41. a front radial magnetic bearing housing; 42. a vent hole.
Detailed Description
As shown in fig. 1, a high-efficiency axial-flow type magnetic suspension motor air cooling device. The device comprises a closed shell, wherein the shell consists of a front flange 11, a shell middle section 12 and a rear flange 13, and the shell is provided with a plurality of air inlets 14 and air outlets 15 which are distributed circumferentially; the front radial magnetic bearing 30, the rear radial magnetic bearing 40 and the axial magnetic bearing 7 are arranged in the shell to form a supporting structure of the magnetic suspension motor rotor 5; the stator lamination 21, the stator winding 22 and the finned radiator 23 form a stator structure of the motor, and the fan 6 is installed on the rotor 5.
After the motor is started, the rotor 5 drives the fan 6 to rotate, and the air is stirred to generate a pressure difference, so that the air enters the housing from the housing air inlet 14, flows through the air vent 32 of the front radial magnetic bearing housing 31, the fin radiator 23 and the air vent 42 of the surface and rear radial magnetic bearing housing 41 of the rotor 5, and finally flows through the fan 6 and is discharged out of the air vent 15. The air flows and is fully contacted with each component for heat exchange, the heat generated by the magnetic bearing and the motor stator and the motor rotor is taken away, and the temperature in the working process is effectively controlled.
It is only to do above the utility model discloses a high efficiency axial-flow type magnetic suspension motor air cooling device embodiment case, not therefore the restriction the utility model discloses a patent range, all utilize the utility model discloses equivalent structure or equivalent flow transform that the content of description and drawing was done, or direct or indirect application is in other relevant technical field, and all the same reason is included the utility model discloses an in the patent protection scope.
Claims (1)
1. A high-efficiency axial-flow type magnetic suspension motor air cooling device is characterized by comprising a shell, a magnetic bearing, a stator radiator, a rotor and a fan; the shell comprises a front end cover, a middle section and a rear end cover, the shell is provided with an air inlet and an air outlet, the motor stator is positioned at the middle section of the shell, and the motor rotor is positioned at the central position of the motor stator and the magnetic bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921446729.6U CN211630022U (en) | 2019-09-03 | 2019-09-03 | High-efficiency axial-flow type magnetic suspension motor air cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921446729.6U CN211630022U (en) | 2019-09-03 | 2019-09-03 | High-efficiency axial-flow type magnetic suspension motor air cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211630022U true CN211630022U (en) | 2020-10-02 |
Family
ID=72616640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921446729.6U Active CN211630022U (en) | 2019-09-03 | 2019-09-03 | High-efficiency axial-flow type magnetic suspension motor air cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211630022U (en) |
-
2019
- 2019-09-03 CN CN201921446729.6U patent/CN211630022U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20210818 Address after: 214154 warehouse-1, No. 3, No. 6 Luoshen Road, Huishan District, Wuxi City, Jiangsu Province (West Railway Station Logistics Park) Patentee after: Yazhijie intelligent equipment (Jiangsu) Co.,Ltd. Address before: 100036 West 205, Hengxin business building, No.61 Fuxing Road, Haidian District, Beijing Patentee before: BEIJING YZJ ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co.,Ltd. |