Elastic assembly for miniature driving motor

Abstract

The invention discloses an elastic assembly for a miniature driving motor. The elastic assembly comprises two elastic plates which are insulated to each other, wherein each elastic plate comprises a substrate and a conductive pin vertical to a plane at which the substrate is located; each substrate comprises an outer frame, an inner frame and two wire springs; each outer frame comprises three linear sides and a triangular reinforcing part; each inner frame comprises a circular-arc-shaped inner side; each wire spring comprises an initial end, a first elastic part provided with a plurality of U-shaped curved parts, an arc-shaped second elastic part and a final end connected with each circular-arc-shaped inner side; and each U-shaped curved part comprises two parallel straight sides and a curved side connected with the two straight sides, an included angle between each straight side and the linear side connected with the initial end of each wire spring is 0-20 degrees. The elastic assembly disclosed by the invention is favorable in deformation resistance performance on the horizontal plane, ensures that the spring inner frames cannot horizontally deviate when moving in an axis direction vertical to the horizontal plane and can provide more stable and appropriate elasticity by virtue of the spring inner frames in the axis direction vertical to the horizontal plane.

Description

technical field [0001] The invention belongs to the technical field of micro-motors, and in particular relates to an elastic assembly used for micro-drive motors. Background technique [0002] Micro-camera devices have been widely used in mobile phones and notebook computers, and the micro-drive motors (also called lens drive motors) are getting smaller and smaller. [0003] Traditional micro-drive motors generally include an upper cover, an upper gasket, an upper spring piece, a lens carrier, a magnet assembly, a coil assembly, a lower gasket, a lower spring assembly and a base; The requirements are relatively high. First, the spring inner frame is required to have good anti-deformation performance on the horizontal plane. Secondly, the elastic force provided in the axial direction perpendicular to the horizontal direction must be appropriate. Too small or too large is not good; if it is too large, the coil The electromagnetic force generated between the component and ...

AI Technical Summary

Problems solved by technology

[0003] Traditional micro-drive motors generally include an upper cover, an upper gasket, an upper spring piece, a lens carrier, a magnet assembly, a coil assembly, a lower gasket, a lower spring assembly and a base; The requirements are relatively high. First, the spring inner frame is required to have good anti-deformation performance on the horizontal plane. Secondly, the elastic force provided in the axial direction perpendicular to the horizontal direction must be appropriate. Too small or too large is not good; if it is too large, the coil The electromagnetic force generated between the component and the magnet component cannot push it to the proper position, which will affect the stroke of the motor; if it is too small, it will affect the stability of the motor, and the slight electromagnetic force or the gravity and acceleration force of other components will affect the motor. Have a certain impact, affecting the smooth operation of the motor

Images