Electric folding device for outside rear-view mirror of automobile

Abstract

The invention discloses an electric folding device for an outside rear-view mirror of an automobile. The electric folding device comprises a centralized connecting piece; the centralized connecting piece is provided with a mounting part allowing a driving gear to slide in the circumferential direction; a limiting seat is integrally arranged on the upper portion of the mounting part; a spring abutsagainst the upper end of the limiting seat; the driving gear abuts against the position between the limiting seat and a foundation support, and in the initial state, reserved gaps are formed betweenthe driving gear and the limiting seat as well as between the driving gear and the foundation support; and a foundation support cam assembly and a base cam assembly are driven by an electric drive unit to gradually slide relative to each other, and in the process, the reserved gap is gradually eliminated along with upward lifting of the foundation support until the foundation support cam assemblyabuts against the base cam assembly. The electric folding device for the outside rear-view mirror of the automobile can smoothly achieve the lifting function, has relatively low requirements for the bearing capacity of a gear, and is suitable for lightweight development and relatively low in cost.

Description

technical field [0001] The invention belongs to the field of automobile exterior rearview mirrors, in particular to an electric folding device for automobile exterior rearview mirrors. Background technique [0002] The exterior rearview mirror is an auto accessory for the driver to observe the running status of the rear vehicles and pedestrians while driving. It is a necessary guarantee for safe driving. By adjusting the installation angle of the exterior rearview mirror, the driver can observe a specific direction The field of view is convenient for safe driving. Therefore, the importance of exterior rearview mirrors is well known. And because the exterior rearview mirrors are installed on both sides of the car, the exterior rearview mirrors installed on the outside of the car often use an electric drive folding device to prevent the car from driving in a narrow space or in a complicated place with many pedestrians. The mirror collides with other vehicles and pedestrians,...

AI Technical Summary

Problems solved by technology

But the problem is that this structural design has high requirements on the load-carrying capacity of the gears of the connecting parts. The gears need to be made of better materials such as powder metallurgy parts to meet the strength requirements, which is not conducive to the development of lightweight products and cost reduction.

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