Driving device and assembling method therefor, and camera module

Abstract

Disclosed are a driving device and an assembling method therefor, and a camera module. The driving device comprises a fixed portion having an accommodating cavity, an elastic member disposed in the accommodating cavity, a movable portion movably suspended in the accommodating cavity through the elastic member, and a driving portion for driving the movable portion to move relative to the fixed portion. In the driving device, respective portions of the elastic member thereof are arranged in a specific manner to avoid unexpected movement of a driven object in the process of driving the acted object to move, so as to reduce the tilt tolerance of the driving device and improve the accuracy of assembling the camera module. At least one first coil comprises a first sub-coil, a second sub-coil, a third sub-coil, and a fourth sub-coil, wherein an extending direction of a first lower rail is consistent with an extending direction of the first sub-coil, an extending direction of a second lower rail is consistent with an extending direction of the second sub-coil, an extending direction of a third lower rail is consistent with an extending direction of the third sub-coil, and an extending direction of a fourth lower rail is consistent with an extending direction of the fourth sub-coil.