Title:
LINEAR VIBRATION MOTOR
Document Type and Number:
WIPO Patent Application WO/2017/088421
Kind Code:
A1
Abstract:
A linear vibration motor comprises a vibrator and a stator arranged in parallel with the vibrator, the vibrator comprising a clump weight (5) and a vibrating block embedded in the clump weight, the stator comprising a stator coil (61, 62) and a conducting magnetic core (71, 72) arranged in the stator coil, wherein the vibrating block comprises at least two magnetic members (81, 82, 83) arranged in a row and a magnetic reinforcement (91, 92) provided between the adjacent magnetic members, the magnetic member and the magnetic reinforcement being permanent magnets; the adjacent ends of each two adjacent magnetic members are of the same polarity; and the magnetization direction of the magnetic reinforcement is perpendicular to that of the magnetic member. The linear vibration motor can increase the magnetic force line passing through the stator coil, thereby enhancing the vibration of the product.
Inventors:
LIU CHUNFA (CN)
ZU FENGLEI (CN)
ZU FENGLEI (CN)
Application Number:
PCT/CN2016/084037
Publication Date:
June 01, 2017
Filing Date:
May 31, 2016
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H02K33/14; H02K33/18
Foreign References:
| CN201789399U | 2011-04-06 | |||
| CN202068311U | 2011-12-07 | |||
| CN105281527A | 2016-01-27 | |||
| CN203416119U | 2014-01-29 | |||
| CN103855856A | 2014-06-11 | |||
| EP2608373A1 | 2013-06-26 | |||
| US20120104875A1 | 2012-05-03 |
Attorney, Agent or Firm:
BEIJING GRANDER IP LAW FIRM (CN)
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