Title:
LINEAR VIBRATION MOTOR
Document Type and Number:
WIPO Patent Application WO/2017/133132
Kind Code:
A1
Abstract:
A linear vibration motor, comprising a housing, a vibrator and a stator fixed on the housing and arranged in parallel with the vibrator. The vibrator comprises a vibration block, the vibration block comprises at least one permanent magnet (7a, 7b, 7c), the stator comprises conductive blocks (3a, 3b), and the conductive blocks are subject to the effect of a magnetic field force which is the same as and/or opposite to the vibration direction of the vibrator. When the vibrator is in a balanced state, the resultant force of the magnetic field force is zero. When the conductive blocks are subject to the effect of an excitation force and undergo displacement relative to the vibrator on the vibration direction of the vibrator, the resultant force direction of the magnetic field force is the same as the direction of the relative displacement, and the resultant force size of the magnetic field force has a proportional relationship with the size of the relative displacement. The conductive blocks are used to replace stator coils, and the interaction between the conductive blocks and the permanent magnets implements linear vibration.
Inventors:
ZU FENGLEI (CN)
LIU CHUNFA (CN)
LIU CHUNFA (CN)
Application Number:
PCT/CN2016/082479
Publication Date:
August 10, 2017
Filing Date:
May 18, 2016
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H02K33/16
Foreign References:
| CN105529898A | 2016-04-27 | |||
| CN205490071U | 2016-08-17 | |||
| CN102570764A | 2012-07-11 | |||
| CN101183823A | 2008-05-21 | |||
| KR20110049385A | 2011-05-12 |
Attorney, Agent or Firm:
BEIJING GRANDER IP LAW FIRM (CN)
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