Title:
LINEAR VIBRATION MOTOR
Document Type and Number:
WIPO Patent Application WO/2017/049778
Kind Code:
A1
Abstract:
A linear vibration motor comprising an oscillator and a stator. The oscillator comprises at least two adjacently arranged permanent magnets (32a, 32b, 32c, 32a', and 32b') and magnetic induction yokes (33a, 33b, and 33a') arranged between the adjacently arranged permanent magnets (32a, 32b, 32c, 32a', and 32b'), also, the adjacent extremities of the two adjacently arranged permanent magnets (32a, 32b, 32c, 32a', and 32b') are identical in polarity. The stator comprises coils (41a, 41b, and 41') and magnetic cores (42a, 42b, and 42') arranged at the center of the coils (41a, 41b, and 41'). Also, the magnetization direction of the permanent magnets (32a, 32b, 32c, 32a', and 32b') is perpendicular to the axial direction of the coils (41a, 41b, and 41'). With the repulsive force between the two extremities of the two permanent magnets of identical polarity, the linear vibration motor allows the magnetic field lines of the permanent magnets to run concentratively through the coils, thus producing an increased magnetic flux and enhanced vibration effects.
Inventors:
ZU FENGLEI (CN)
LIU CHUNFA (CN)
LIU CHUNFA (CN)
Application Number:
PCT/CN2015/097466
Publication Date:
March 30, 2017
Filing Date:
December 15, 2015
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H02K33/18
Foreign References:
| CN102570764A | 2012-07-11 | |||
| CN102684445A | 2012-09-19 | |||
| CN103401395A | 2013-11-20 | |||
| CN101488697A | 2009-07-22 |
Attorney, Agent or Firm:
BEIJING GRANDER IP LAW FIRM (CN)
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