US 12,306,528 B2
Magnet arrangement structure suitable for voice coil motor and micro gimbal stabilizer
Lin Chi Mak, Hong Kong (CN); and Yee Chung Chu, Hong Kong (CN)
Assigned to VISTA INNOTECH LIMITED, Hong Kong (CN)
Filed by Vista Innotech Limited, Hong Kong (CN)
Filed on May 12, 2022, as Appl. No. 17/743,373.
Claims priority of application No. 2021109389405.5 (CN), filed on Aug. 16, 2021.
Prior Publication US 2023/0048052 A1, Feb. 16, 2023
Int. Cl. G03B 5/06 (2021.01); H02K 41/035 (2006.01); G02B 27/64 (2006.01)
CPC G03B 5/06 (2013.01) [H02K 41/0354 (2013.01); G02B 27/64 (2013.01); G03B 2205/0069 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A micro gimbal stabilizer, comprising a camera module and a voice coil motor, wherein the micro gimbal stabilizer further comprises a magnet arrangement structure provided in the voice coil motor, and the camera module is provided on a rotor of the voice coil motor, wherein the magnet arrangement structure suitable, comprising:
a magnet holder, and
a coil holder coaxial with the magnet holder,
wherein 2n magnet groups are provided on the magnet holder, n is a natural number and is greater than or equal to 1, each magnet group is symmetrically provided around a central axis of the magnet holder, each magnet group comprises at least one magnet, and each magnet has two magnetic poles; surfaces, facing the central axis, of each magnet group comprise two different magnetic poles, and each magnetic pole is opposite to the magnetic pole of an adjacent magnet group; and each magnet group also corresponds to a coil, and the coil is installed on the coil holder.