ELECTRIC FOLDING DEVICE FOR EXTERIOR REAR-VIEW MIRROR OF VEHICLE

An electric folding device for exterior rear-view mirror of a vehicle is provided which comprises a centralized connection piece, having a mounting portion provided for the drive gear to slide circumferentially; a limiting seat is integrally disposed on an upper part of the mounting portion, a spring is abutted against an upper end of the limiting seat; the drive gear is abutted between the limiting seat and the base. In an initial state, a reserved gap is present between the drive gear and the limiting seat/the base; the electric drive unit drives the base cam assembly to gradually slide relative to the seat cam assembly; the reserved gap is gradually eliminated until the base cam assembly is abutted against the seat cam assembly as the base is lifted up, achieving a smooth lifting function, with low requirements for the bearing capacity of gear, suitable for lightweight development, and cost-effective.