Title:
STEPPER MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/174592
Kind Code:
A1
Abstract:
Provided in the present application is a stepper motor, the motor comprising: a housing and a stator and a rotor that are accommodated within the housing; the stator is disposed surrounding the rotor; the rotor comprises a magnetically conductive housing and a rotor pole that is sleeved on the magnetically conductive housing and that is an annular shape; the magnetically conductive housing comprises a circular bottom wall, a side wall that extends upward from an edge of the bottom wall, and a top wall that extends from a top end of the side wall toward the center near to an end cap, and a rotary shaft; and the rotor pole is disposed on the side wall. By providing a hollow rotor, the goal of reducing the rotor moment of inertia, increasing self-starting frequency, improving work frequency reverse drive (locked-rotor performance), and reducing costs may be attained while not reducing the output torque of a motor.
Inventors:
ZOU XIXI (CN)
YI ZHEN (CN)
ZHONG WEN (CN)
YI ZHEN (CN)
ZHONG WEN (CN)
Application Number:
PCT/CN2020/079684
Publication Date:
September 10, 2021
Filing Date:
March 17, 2020
Export Citation:
Assignee:
AAC OPTICS CHANGZHOU CO LTD (CN)
International Classes:
H02K37/14
Foreign References:
| CN204481655U | 2015-07-15 | |||
| CN106803709A | 2017-06-06 | |||
| US20030063993A1 | 2003-04-03 |
Attorney, Agent or Firm:
SHENZHEN CHINA INNOVATION SOUTH INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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