A transmission mechanism with variable topology structure for automobile electric door lock

Abstract

The invention relates to an automobile electric door lock and belongs to the field of automobile engineering. According to a topology variable structure provided transmission mechanism for an automobile electric door lock, based on an interval composite piece with a return spring, a single motor drives an insurance relieving branched chain and an opening branched chain of a novel transmission mechanism according to an expected timing sequence; a topology structure of the mechanism can be changed through a cam mechanism angle of repose and a limiting position of the interval composite piece, and the movement time sequence and the movement shutdown ratio of the mechanism are determined; and the limiting position is determined through a limiting position check block, and determined movement of the opening branched chain is achieved. A lower gear of a dual gear in the mechanism drives an insurance branched chain, a lower gear of the insurance branched chain and an engaged insurance gear, the insurance gear drives insurance shifting teeth, the shifting teeth drive an insurance rotary table to rotate, the insurance rotary table pulls an insurance push rod, and an insurance relieving function is achieved. In the insurance relieving process, a driven member cam sliding crank of an interval composite piece cam mechanism is in a shutdown state. An upper gear of the dual gear drives the opening branched chain, and an electric unlocking function is achieved.

Description

technical field [0001] The invention relates to automobile engineering, in particular to an intermittent cam-link transmission mechanism with a variable topology structure for electric automobile door locks, and belongs to the technical field of electric opening mechanisms for automobile door locks. Background technique [0002] With the development of electronic technology control, the degree of electronicization of automobiles is getting higher and higher, and the requirements for user experience are getting higher and higher. Electric control door opening is a new type of car door lock with the development of control technology. Its principle is to install an electric door opening system in the lock body, so that the door lock can be opened completely by the control system, saving a lot of internal and external manipulation. The mechanism makes the door lock more concise; its mechanical structure is simple and compact, which greatly enhances the life and reliability of th...

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Problems solved by technology

[0003] At present, there are mainly two design ideas for the existing electric door locks. One is to simplify the design process, reduce the design size, and omit the safety function, which makes the lock less stable; Unlocking two branch chains makes the lock larger in size and not innovative enough

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