CN2708476Y

CN2708476Y - Pushing switch

Info

Publication number: CN2708476Y
Application number: CN 200420027562
Authority: CN
Inventors: 谭世杰
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2004-05-31
Filing date: 2004-05-31
Publication date: 2005-07-06
Anticipated expiration: 2014-05-31

Abstract

The utility model relates to a pushing switch, comprising a frame. A central fixed contact, a first outer fixed contact and a second outer fixed contact are separately installed in the frame. A travelling contact is installed above the central fixed contact, the first outer fixed contact and the second outer fixed contact. A gluing sheet covers the travelling contact. The travelling contact comprises an edge part which is in permanent contact with the second outer fixed contact, a top part which can contact or be separated from the central fixed contact and a side pressing part which can contact or be separated from the first outer fixed contact. The pushing switch is only provided with one travelling contact. It has a simple structure, an easy manufacture and a low cost.

Description

Push switch

[technical field]

The utility model relates to a kind of push switch, relates in particular to the push switch that can successively export two signals after a kind of the pushing.

[background technology]

Prior art sees also Japanese patent laid-open 2003-7167 number of application on June 21 calendar year 2001.This patent discloses a kind of push switch, and this push switch comprises the housing with resettlement section; Be contained in the central fixed contact of housing inner bottom surface; Be arranged at first outside fixed contact in the central fixed contact outside; The bottom travelling contact, the central authorities of its set portion that arches upward are relative with aforementioned central fixed contact, and the edge part of bottom travelling contact contacts with first outside fixed contact; Upper movable contact, its diameter are greater than the diameter of bottom travelling contact, and the central authorities of its portion that arches upward are covered on the travelling contact of bottom, and its edge part contacts with second outside fixed contact; Place the cyclic adhesion thin slice in the housing receiving space, its central authorities have through hole; Expose from the through hole of adhesive sheet at the top of the portion that arches upward of bottom travelling contact, and can contact with the upper movable contact, and the annulus of aforementioned adhesion thin slice is covered in the lateral edges of bottom travelling contact.

Yet the travelling contact of this push switch is made of upper movable contact, bottom travelling contact two parts, also is provided with the cyclic adhesion thin slice between upper movable contact and the bottom travelling contact, make that this push switch volume is big, complex structure is made difficulty, and cost is higher.

[utility model content]

It is a kind of simple in structure, easy to manufacture that the purpose of this utility model is to provide, the push switch that cost is low.

For achieving the above object, the utility model push switch comprises framework; Separate the central fixed contact, first outside fixed contact and second outside fixed contact that are arranged at framework inside; Be arranged on the travelling contact of central fixed contact, first outside fixed contact and fixed contact top, second outside; Cover the adhesive sheet on the travelling contact, wherein travelling contact comprise with the edge part of the permanent contact of second outside fixed contact, can with central fixed contact contact or the top of separating and can with first outside fixed contact contact or the side pressure portion that separates.

Compared with prior art, the utility model push switch only is provided with a travelling contact, and volume is little, and is simple in structure, easy to manufacture, and production cost is low.

[description of drawings]

Fig. 1 is the three-dimensional combination figure of the utility model push switch.

Fig. 2 is the three-dimensional exploded view of the utility model push switch.

Fig. 3 is another angle three-dimensional exploded view of the utility model push switch.

Fig. 4 is the cutaway view of the utility model push switch along Figure 1A-A line.

[embodiment]

Please refer to Fig. 1 to shown in Figure 4, the utility model push switch (not label) comprises framework 1; Be arranged on the fixed contact 2 of framework 1 bottom; Place the travelling contact 3 on framework 1 top; Cover the adhesive sheet 4 on the travelling contact 3.

Framework 1 is flat cube, and the bottom is provided with some accepting holes 10,11,12 of accommodating fixed contact 2, and the middle part is provided with the receiving space 13 of accommodating travelling contact 3.

Fixed contact 2 comprises central fixed contact 20, is arranged on central fixed contact 20 first outside fixed contact 21 and second outside fixed contact 22 on every side.Central authorities' fixed contact 20 is fastened in the framework 1, and the one end is housed in accepting hole 10 places, and other end extension is arranged on the framework outside and is used for electrically connecting with external circuit.Equally, first outside fixed contact 21 and second outside fixed contact 22 also are fastened in the framework 1, first outside fixed contact 21 is provided with two first outside contact sites 210 that are housed in accepting hole 11 places respectively, second outside fixed contact 22 is two and separates the sheet metal that is provided with, the one end is housed in accepting hole 12 places, and other end extension is arranged on the framework outside and is used for electrically connecting with external circuit.

Travelling contact 3 is disc elastic sheet metals, and it comprises the connecting portion 32 and the side pressure portion 33 at edge part 30, top 31, adjoining edge portion 30 and top 31.Side pressure portion 33 is arranged on the lateral margin at top 31 and with edge part 30 certain interval is arranged.In the present embodiment, side pressure portion 33 is connected portion's 32 separation and is set to four parts, and certainly, side pressure portion 33 also can be separated into several portions according to actual needs.

During assembling, earlier fixed contact 2 is fastened in the framework 1, then travelling contact 3 is arranged on fixed contact 2 tops, wherein the edge part 30 of travelling contact 3 contacts with second outside fixed contact, 22 perseverances of fixed contact 2, side pressure portion 33 is arranged on first outside fixed contact, 21 tops, top 31 is arranged on central fixed contact 20 tops, wherein side pressure portion 33 is littler from the distance of central fixed contact 20 than top 31 from the distance of first outside fixed contact 21, at last adhesive sheet 4 is covered on the travelling contact 3.

During operation, pushing travelling contact 3 moves down it, the side pressure portion 33 of travelling contact 3 contacts with first outside fixed contact 21, with first outside fixed contact 21 and 22 conductings of second outside fixed contact, the top 31 of travelling contact 3 contacts with central fixed contact 20 then, with central fixed contact 20 and 21 conductings of first outside fixed contact, so can successively export two signals.The utility model push switch only is provided with a travelling contact, and simple in structure, easy to manufacture, production cost is low.

Generally, this push switch is used for the shutter of digital camera, when partly tripping, and during first outside fixed contact 21 and 22 conductings of second outside fixed contact just, signal of push switch output, digital camera will be finished the action of focusing and photometry; When tripping entirely, when just central fixed contact 20 and 21 conductings of first outside fixed contact, push switch is exported a signal again, and digital camera will be finished and take action.Certainly, this push switch also can be used for the electronic installation of two signals of needs output such as camera shutter.

Claims

1. a push switch comprises framework; Separate the central fixed contact, first outside fixed contact and second outside fixed contact that are arranged at framework inside; Be arranged on the travelling contact of central fixed contact, first outside fixed contact and fixed contact top, second outside; Cover the adhesive sheet on the travelling contact, it is characterized in that: described travelling contact comprise with the edge part of the permanent contact of second outside fixed contact, can with central fixed contact contact or the top of separating and can with first outside fixed contact contact or the side pressure portion that separates.

2. push switch according to claim 1 is characterized in that: described travelling contact also is provided with the connecting portion that be connected of edge part with the top.

3. push switch according to claim 1 is characterized in that: described side pressure portion is arranged on the lateral margin at top.

4. push switch according to claim 3 is characterized in that: described side pressure portion is connected part from being set to several portions.

5. push switch according to claim 1 is characterized in that: described travelling contact is the disc elastic sheet metal.

6. push switch according to claim 1 is characterized in that: wherein side pressure portion is littler from the distance of central fixed contact than the top from the distance of first outside fixed contact.

7. push switch according to claim 1 is characterized in that: wherein central fixed contact, first outside fixed contact and second outside fixed contact all are located at the framework bottom.