Camera module and electronic device

Abstract

Camera module (1) comprising: at least one lens unit (11) with a central axis (111); a top cover (12) with at least one light-transmitting hole (121) corresponding to the at least one lens unit (11) along a direction parallel to the central axis (111); a fixed part (13) arranged corresponding to the top cover (12); a movable part (14) movable relative to the fixed part (13) and having a light-blocking area (1421) and a light-transmitting area (1422); a drive module (15) comprising: at least one magnet (151) arranged on the movable part (14); and at least one coil (152) arranged according to the at least one magnet (151); when the drive module (15) drives the moving part (14) to an open end (ED1), the light-transmitting area (1422) corresponds to the at least one light-transmitting hole (121);when the drive module (15) drives the movable part (14) towards a closed end (ED2), the light-blocking area (1421) corresponds to the at least one light-transmitting hole (121); and a ferromagnetic arrangement (16) that is at least partially embedded in the fixed part (13) and comprises at least one ferromagnetic element (161); wherein the ferromagnetic arrangement (16) exerts a first magnetic force (FC1) on the at least one magnet (151) such that the movable part (14) is held in position either at the open end (ED1) or at the closed end (ED2); wherein the ferromagnetic arrangement (16) exerts a second magnetic force (FC2) on the at least one magnet (151).