Title:
MULTI-AXIS VOICE COIL MOTOR
Document Type and Number:
WIPO Patent Application WO/2018/227589
Kind Code:
A1
Abstract:
The present invention is applicable to the field of camera drive devices and provides a multi-axis voice coil motor, comprising: a metal magnetic yoke, an upper cover terminal, a lower cover terminal, an upper spring, a lower spring, a lens seat, and a support; at least two anti-shake coils are provided on the lens seat, an outer side of each anti-shake coil being provided with an anti-shake magnet, and a face of the anti-shake magnet that is close to the anti-shake coil simultaneously having a horizontally distributed N-pole and S-pole; at least two focusing coils are provided on the support, an outer side of each focusing coil being provided with a focusing magnet, and a face of the focusing magnet that is close to the focusing coil simultaneously having a vertically distributed N-pole and S-pole; the upper spring and the lower spring are arranged on the upper cover terminal and the lower cover terminal, respectively, the upper cover terminal being buckled on the lower cover terminal; the lens seat and the support are connected to the upper spring and the lower spring, respectively, and the anti-shake magnet and the focusing magnet are both fixed between the upper cover terminal and the lower cover terminal. The motor achieves focusing, optical anti-shake, and optical axis correction functions for the motor by means of a brand-new magnetic path. The motor has a small size and will not produce magnetic interference.
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Inventors:
LAU HERBERT CHI-YUEN (CN)
HONG HENRY HANGQING (CN)
HONG HENRY HANGQING (CN)
Application Number:
PCT/CN2017/088728
Publication Date:
December 20, 2018
Filing Date:
June 16, 2017
Export Citation:
Assignee:
DONGGUAN PREC PHOTONICS LIMITED (CN)
International Classes:
G03B13/36; G03B5/06; G03B17/00; H04N5/232
Foreign References:
| CN206039113U | 2017-03-22 | |||
| CN102209933A | 2011-10-05 | |||
| CN106303264A | 2017-01-04 | |||
| US6901598B1 | 2005-05-31 | |||
| JP2011252989A | 2011-12-15 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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