Optical anti-vibration motor and camera module

Abstract

The invention discloses an optical anti-vibration motor. The optical anti-vibration motor comprises a base, a carrier, a suspension mechanism and a driving mechanism, a mounting hole is formed in the base in a penetrating manner; the suspension mechanism comprises an elastic sheet fixed on the base; the carrier is hung on the elastic sheet and is movably accommodated in the mounting hole; the driving mechanism comprises at least two driving units, the driving units are installed on the base and located on the side portion of the carrier, the driving units are used for driving the carrier to move in at least two staggered directions, each driving unit comprises an SMA wire, and the SMA wires can act on the carrier to enable the carrier to move when powered on and shrunk. Compared with the prior art, the optical anti-shake motor has the advantages that the carrier has a larger moving stroke, so that anti-shake at a larger angle can be realized, the anti-shake performance of the optical anti-shake motor is improved, and meanwhile, the driving unit is arranged at the side part of the carrier, so that the thickness of the optical anti-shake motor can be reduced. The invention further discloses a camera module with the optical anti-vibration motor.

Description

technical field [0001] The invention relates to the field of optical anti-shake technology, in particular to an optical anti-shake motor and a camera module driven by SMA wires. Background technique [0002] Electronic equipment has become an indispensable social tool and entertainment tool in people's daily life, and people's requirements for electronic equipment are getting higher and higher. The camera module of existing electronic equipment drives the lens movement through voice coil motor, auto focus (AUTO FOCUS, AF) motor, optical anti-shake motor, etc. to solve the problem of unclear imaging caused by shaking during shooting. The photo and video effects of electronic equipment are also more and more clear. [0003] There is an existing camera module with an optical anti-shake motor. The lens is set on the optical anti-shake motor, and the lens is driven by the optical anti-shake motor to improve the imaging of the camera module caused by the shaking of the user durin...

AI Technical Summary

Problems solved by technology

Among them, the optical anti-shake motor has a fixed part and a movable part, a sliding bearing is arranged between the fixed part and the movable part, and the movable part is movably arranged on the fixed part through the sliding bearing, and the driving mechanism for driving the movable part to move is then Located on the bottom surface, the existing optical anti-shake motor, firstly, the moving stroke of the moving parts is relatively small, and it cannot achieve a larger angle of anti-shake. In addition, the thickness of the optical anti-shake motor is relatively large, which is not conducive to the small size of the equipment. change

Images