Title:
VIBRATION MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/000088
Kind Code:
A1
Abstract:
A vibration motor, which comprises a housing, a vibrator and a stator, wherein the vibrator comprises a magnetic circuit structure for vibration, the stator comprises a coil that drives the magnetic circuit structure to vibrate, a winding plane of the coil is perpendicular to a vibration direction of the vibrator, the magnetic circuit structure comprises a first magnetic steel group arranged on one side of the coil in the vibration direction of the vibrator and a second magnetic steel group arranged on the other side of the coil in the vibration direction of the vibrator, wherein both the first magnetic steel group and the second magnetic steel group comprise a plurality of magnetic steels arranged in sequence, the magnetic steels are magnetized in the direction perpendicular to the vibration direction of the vibrator, magnetizing directions of two adjacent magnetic steels are opposite, and the magnetizing directions of magnetic steels at the opposite positions in the first magnetic steel group and the second magnetic steel group are opposite. Compared with the related art, the vibrator of the vibration motor has a large driving force when vibrating and a fast response speed.
Inventors:
MAO LUBIN (CN)
ZHANG ZIJIE (CN)
ZHANG ZIJIE (CN)
Application Number:
PCT/CN2019/093984
Publication Date:
January 07, 2021
Filing Date:
June 29, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (CN)
AAC TECHNOLOGIES PTE LTD (CN)
International Classes:
H02K33/18
Foreign References:
| CN106817006A | 2017-06-09 | |||
| CN206834954U | 2018-01-02 | |||
| CN206834954U | 2018-01-02 | |||
| CN106160401A | 2016-11-23 | |||
| EP3451511A1 | 2019-03-06 | |||
| CN206834959U | 2018-01-02 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYUANLIHE PATENT AND TRADEMARK FIRM (GENERAL PARTNERSHIP) (CN)
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