Title:
MOTOR AND EXHAUST METHOD FOR MOTOR CAVITY
Document Type and Number:
WIPO Patent Application WO/2020/034590
Kind Code:
A1
Abstract:
The present invention provides a motor, comprising: a housing; a motor stator located in the housing; a motor output shaft located in the housing; and an exhaust device connected to the housing and configured to exhaust air from the interior of the housing. According to an implementation mode of the present invention, a turbine device is mounted on the motor output shaft; when the motor rotates, an inner cavity of the motor is evacuated to be in a negative pressure state; the higher the motor speed, the lower the air pressure inside the motor, the higher the vacuum degree, and the smaller the frictional resistance between a rotor and the air, so that the motor speed can be effectively increased and a rotor having a relatively large diameter can be used, thereby enhancing the low speed torque while increasing the power density of the motor and facilitating the design of a high power motor.
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Inventors:
SHU CHANG (CN)
Application Number:
PCT/CN2019/073056
Publication Date:
February 20, 2020
Filing Date:
January 25, 2019
Export Citation:
Assignee:
SHU CHANG (CN)
International Classes:
H02K5/20; H02K9/06
Foreign References:
| CN108667214A | 2018-10-16 | |||
| CN101714798A | 2010-05-26 | |||
| CN101714798A | 2010-05-26 | |||
| CN107836072A | 2018-03-23 | |||
| CN204156663U | 2015-02-11 | |||
| CN107401506A | 2017-11-28 | |||
| CN106887926A | 2017-06-23 | |||
| CN202602464U | 2012-12-12 | |||
| US4554472A | 1985-11-19 |
Attorney, Agent or Firm:
BEIJING LAWSING IP FIRM (CN)
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