Keystroke fixing structure and portable mobile terminal

Abstract

The invention discloses a keystroke fixing structure and a portable mobile terminal, relating to the technical field of electronics and solving the technical problem of poor reliability of the traditional keystroke fixing structure. The keystroke fixing structure comprises a casing, a fixing sheet and detachable connection structures, wherein the fixing sheet is provided with at least one keystroke through hole, the detachable connection structures can prevent the fixing sheet from separating towards the direction far away from a circuit board, and the casing is internally provided with the circuit board electrically connected with a keystroke switch; at least one externally convex keystroke bulge is fixedly arranged on a keystroke rubber mat and embedded in the keystroke through hole, and the part opposite to the keystroke bulge position and on one side of the keystroke rubber mat close to the circuit board is opposite to the position of the keystroke switch; and the detachable connection structures are arranged on the side of the fixing sheet edge close to the circuit board and on the casing. The portable mobile terminal comprises such keystroke fixed structure, the keystrokes and the circuit board located in the casing. The invention is applied to the fixed keystrokes.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a key fixing structure and a portable mobile terminal provided with the key fixing structure. Background technique [0002] With the continuous development of electronic technology, portable mobile terminals such as mobile phones and handheld computers have become the most common communication tools in people's daily life. [0003] Buttons are one of the important components of electronic equipment such as portable mobile terminals, and are used to realize human-computer interaction between electronic equipment and users. Existing keys include a silicone pad and at least one key switch. A circuit board electrically connected to the key switch is arranged in the front shell; The part on the side opposite to the position of the key protrusion is opposite to the position of the key switch; the end of the key protrusion away from the silicone pad is fixed with a key cap. When t...

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides a button fixing structure and a portable mobile terminal, which solves the technical problem of poor reliability of the existing button fixing structure

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