Optical anti-vibration motor

Abstract

The invention discloses an optical anti-vibration motor. The optical anti-vibration motor comprises a base and a magnet yoke iron shell which is arranged with the base in a matching mode. Magnets and a lens carrier are arranged inside the magnet yoke iron shell, wherein coils are wound around the lens carrier. A rear spring piece is arranged between the lens carrier and the base and the magnet yoke iron shell is of a square structure. The optical anti-vibration motor is characterized in that four sets of magnets are symmetrically arranged on the magnet yoke iron shell of the square structure, the four coils are symmetrically arranged outside the lens carrier and each coil corresponds to one set of magnet. A PCB is further arranged inside the base, the PCB is provided with four control ends, each control end is electrically connected with one coil and the PCB is further provided with external pins. The optical anti-vibration motor has the advantages that the anti-vibration performance is good and the motion reliability of the lens carrier is improved.

Description

technical field [0001] The invention relates to a lens driving device, in particular to an optical anti-shake motor applied to a camera, a video camera or a mobile phone with a camera function to drive the lens to move and adjust the focal length. Background technique [0002] With the diversification of functions of digital products, digital devices equipped with video cameras or cameras, such as mobile phones, multimedia players, etc., have been developed rapidly and widely used. The above-mentioned video cameras or cameras usually adopt lenses with adjustable focal length or auto-focus, and the adjustment process is to change the position of the lens, and a drive motor is usually used to drive the lens to move. [0003] The driving device for adjusting the focal length of a traditional camera usually includes stepping motors, gears, cams, and connecting rods. A lens structure with a stable autofocus function disclosed in Chinese patent document CN2938165Y includes a housi...

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned lens driving device can limit the movement of the lens support body through the reeds on both sides of the front and rear sides, so that it has the performance of resistance to bumps and impacts, but since the magnet and the coil are a whole, the difference between the magnet and the coil itself causes the conductive coil The thrust generated in the magnetic field is not uniform, so it will cause jitter and affect the picture quality

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