CN2332050Y

CN2332050Y - Improved structure of push-button movable contact flat for keyboard

Info

Publication number: CN2332050Y
Application number: CN 97230613
Authority: CN
Inventors: 陈文宗
Original assignee: FUYA ELECTRONIC Co Ltd XIAMEN CITY
Current assignee: Jinfutong Electronics Co., Ltd., Xiamen
Priority date: 1997-12-12
Filing date: 1997-12-12
Publication date: 1999-08-04
Anticipated expiration: 2007-12-12

Abstract

The utility model discloses improved structure of a movable contact slice of a key of a keyboard. The movable contact slice which is provided with three contacts is an arc-shaped spring slice, and three contacts corresponding to the three contacts of the arc-shaped spring slice are also arranged on a fixed contact. In this way, contact stress is uniformly distributed rather than focused on a certain point, and elastic deformation of the spring slice is uniformly distributed without easy deformation, so that the service life of the key is prolonged. Besides, both the spring slice and the fixed contact are all provided with three contacts so that the reliability of the key is enhanced.

Description

A kind of structure-improved of keyboard movable contact flat

The utility model relates to a kind of structure-improved of keyboard movable contact flat.

Generally, the movable contact flat of computor-keyboard pushbotton is direct knuckle spring leaf as shown in Figure 4, during button work, the stressed of movable contact flat concentrates on the knuckle, and the elastic deformation of spring leaf also concentrates on the knuckle, so produce metaboly easily at the knuckle place, influence its useful life and reliability.

The purpose of this utility model is to provide a kind of structure-improved of keyboard movable contact flat, its long service life, good reliability.

For reaching above-mentioned purpose, solution of the present utility model is: movable contact flat is an arc-shaped spring piece, forms three contacts on the arc-shaped spring piece, and it is corresponding with it also to form three contacts on the fixed touch plate.

After adopting said structure, during the utility model work, contact is stressed to distribute comparatively equably, and no longer concentrates on certain a bit, and the elastic deformation of spring leaf also evenly distributes, so be difficult for producing distortion, button is increased useful life; And spring leaf and fixed touch plate all form three contacts, and the reliability that button is used strengthens.

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is the utility model three-dimensional structure diagram;

Fig. 2 is that the utility model uses three-dimensional exploded view;

Fig. 3 is that the utility model uses section plan;

Fig. 4 commonly uses the product three-dimensional structure diagram.

Consult Fig. 1,2, the utility model movable contact flat comprises that arc-shaped spring piece 1 and hard pin 2 combine, and arc-shaped spring piece 1 and hard pin 2 also can be one-body molded certainly, form three contacts 11 on the arc-shaped spring piece 1, also form three contacts 31 on the fixed touch plate 3.

Consult Fig. 2,3 again, when the utility model used, arc-shaped spring piece 1 upper stress evenly distributed, on the whole arcuate structure of spring leaf, elastic deformation also is evenly distributed on the arcuate structure, is difficult for producing distortion, make the button long service life, and the contact increases to three, make the contacted good reliability in contact.

Claims

1, a kind of structure-improved of keyboard movable contact flat is characterized in that: movable contact flat is an arc-shaped spring piece.

2, the structure-improved of levying is touched in a kind of keyboard activity as claimed in claim 1, it is characterized in that: form three contacts on the arc-shaped spring piece, it is corresponding with it also to form three contacts on the fixed touch plate.