A button mechanism of an automobile air conditioner controller

Abstract

The invention discloses an automobile air conditioning controller key mechanism comprising a shell, a key body, a key switch, and a circuit board. A clamping hook structure extending into a trench in the lower part of the inner wall of the shell protrudes from the lower periphery of the outer wall of the key body. The inner wall of the shell is provided with a limiting structure for limiting the movement of the key body to the outside of the shell. By adopting the structure, the mechanism has the advantages as follows: the key body has a large upper part and a small lower part, so that the key body can be installed from the back of the shell only, and the key body cannot pass through a key hole of the shell as a whole; the clamping hook on the key body controls the stroke of the key body, and the gap between the key body and the moving direction of the shell is controlled strictly; and the gap ensures that no other parts of the shell, except the key body, contact the shell during normal operation, and reduces noise.

Description

technical field [0001] The invention relates to the technical field of automobile air conditioners, in particular to a button mechanism for an automobile air conditioner controller. Background technique [0002] The general structure of the existing automotive air-conditioning controller key mechanism is: the key body is installed on the housing from the front, and the movement stroke of the key is limited by several cantilever hooks. The disadvantages of this button mechanism are: 1. The noise is large when pressing the button, which affects the comfort of the driver; 2. In order to reduce the noise when the button is operated, the wall thickness of the hook will be thinner, and the clamping force of the hook on the housing will be lower. Weaker, so that when the front of the controller suffers a large impact, the hook will slip off and cause the button body to fall off from the casing and fly out. Contents of the invention [0003] The technical problem to be solved by ...

AI Technical Summary

Problems solved by technology

The disadvantages of this button mechanism are: 1. The noise is large when pressing the button, which affects the comfort of the driver; 2. In order to reduce the noise when the button is operated, the wall thickness of the hook will be thinner, and the clamping force of the hook on the housing will be lower. Weaker, so that when the front of the controller suffers a large impact, the hook will slip off and the button body will fall off from the shell and fly out

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