Title:
LINEAR VIBRATION ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/127906
Kind Code:
A1
Abstract:
A linear vibration electric motor comprises a guide shell (1), a vibration unit (2), a coil unit (3), and an auxiliary magnetic steel unit (4), wherein the guide shell (1) comprises a body (11) and a guide channel (12) penetrating through the body (11); the vibration unit (2) is accommodated in the guide channel (12) and forms a sliding connection, and the vibration unit (2) comprises a magnetic steel unit (21); the coil unit (3) is sheathed on the outer side of the guide shell (1) and is used for driving the vibration unit (2) to vibrate in an axial direction of the guide channel (12); and the auxiliary magnetic steel unit (4) is fixed to the guide shell (1) and is spaced apart from the vibration unit (2), and the auxiliary magnetic steel unit (4) is located in a magnetic field of the magnetic steel unit (21) to generate a vibration restoring force used for restoring vibration displacement of the vibration unit (2). The linear vibration electric motor is simple in terms of assembly, good in terms of vibration performance and high in terms of reliability.
Inventors:
PU XIAOFENG (CN)
LING FANGHUA (CN)
SHI MENGXUN (CN)
LING FANGHUA (CN)
SHI MENGXUN (CN)
Application Number:
PCT/CN2019/127596
Publication Date:
July 01, 2021
Filing Date:
December 23, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H02K33/18
Foreign References:
| JPH11178304A | 1999-07-02 | |||
| JPH11178304A | 1999-07-02 | |||
| CN110445343A | 2019-11-12 | |||
| CN110445345A | 2019-11-12 | |||
| CN207968277U | 2018-10-12 | |||
| CN104617736A | 2015-05-13 | |||
| CN101677204A | 2010-03-24 | |||
| CN102629814A | 2012-08-08 | |||
| CN201018385Y | 2008-02-06 | |||
| KR20150088043A | 2015-07-31 |
Attorney, Agent or Firm:
GUANGDONG GUANGHE LAW FIRM (CN)
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