CN202034279U

CN202034279U - Key structure

Info

Publication number: CN202034279U
Application number: CN2011201627568U
Authority: CN
Inventors: 叶柏志
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-18
Filing date: 2011-05-18
Publication date: 2011-11-09
Anticipated expiration: 2021-05-18

Abstract

A key structure comprises a control board, a combined base body, a key, an elastic body and a switch. A punch hole for installing the combined base body is arranged on the control board. Clamp hooks are arranged on two sides of the combined base body, clamped on two sides of the punch hole of the control board corresponding to the bottom. The inside of the combined base body is in a hollow shape, the key and the elastic body are arranged inside the combined base body. An opening is arranged on the top of the combined base body, and an inner terrace edge is arranged on the periphery of the opening. An outer terrace edge corresponding to the inner terrace edge is arranged on the periphery of the key. When the key is popped up, the outer terrace edge is located on the inner terrace edge to position the key. A motion piece for pressing the elastic body is further arranged inside the key. Elastic pieces are arranged on two sides of the elastic body, an upper pressing portion is upwards arranged in the middle of the elastic body, and a lower pressing portion is downwards arranged in the middle of the elastic body. The upper pressing portion is contacted with the bottom of the key, the lower pressing portion is contacted with the switch, and the switch is arranged on an integrated circuit (IC) board. The elastic body is arranged inside the key structure, and direct contact between the key and the switch is avoided, thereby enabling the pressing movements of the key to be stable.

Description

Press-key structure

Technical field

The utility model relates to a kind of press-key structure.

Background technology

Existing button and switch directly touch, and after using a period of time, have the gap because of the elastic fatigue of switch itself easily, and the pressure that causes button is by moving built on the sand, for it had both deposited problem and the defective that waits to overcome solution.

In addition, there is no between existing button and the switch water-tight device is set, cause switch, both deposited problem and the defective that waits to overcome solution for its another easily because of being attacked by water enchroachment (invasion) and causing short circuit.

Summary of the invention

Main purpose of the present utility model is to provide a kind of press-key structure, makes the pressure of button firm by action.

Another purpose of the present utility model is to provide a kind of press-key structure, makes it have water-proof function.

The utility model provides a kind of press-key structure, comprising: control board, combination pedestal, button, elastomer and switch; This control board is provided with the perforation that is used to install this combination pedestal; These combination pedestal both sides are provided with trip, described trip is fastened in the place, corresponding bottom surface, perforation both sides of this control board, and the inside of this combination pedestal is Openworks shape, inner this button of installing and this elastomer, this combination pedestal end face is provided with opening, and this around openings is provided with interior terrace edge; The corresponding outer terrace edge of terrace edge in this button is provided with on every side and is somebody's turn to do, this outer terrace edge is positioned terrace edge in this at the button At time of eject, and to locate this button, this button inside also is provided with and is used for pressing by this elastomeric action piece; These elastomeric both sides are provided with flexure strip, and this place, elastomeric centre position is provided with splenium up, and towards having pressing down section, splenium contacts with this button bottom on this, and this pressing down section then contacts with this switch; This switch is arranged on the IC circuit board.

When flexure strip was depressed when button, pressing down section i.e. touch switch synchronously, and when decontroling button, elastomer restores to the original state again, made that the pressure of button is more firm by action.

In the above-mentioned press-key structure provided by the utility model, between elastomeric pressing down section and switch, be provided with one deck waterproof membrane, pressing down section can be contacted with switch across waterproof membrane, reach water-proof function.

Useful technique effect of the present utility model is to be provided with elastomer in this press-key structure, avoids button and switch directly to touch, and makes that the pressure that causes button is firm by action.

Description of drawings

Fig. 1 is a three-dimensional combination generalized section of the present utility model.

Fig. 2 is a perspective exploded view of the present utility model.

Fig. 3 is a section combination schematic diagram of the present utility model.

Fig. 4 is that pressure of the present utility model is pressed and relieving action schematic diagram.

Wherein, description of reference numerals is as follows:

10 ... control board

11 ... perforation

20 ... the combination pedestal

21 ... trip

22 ... opening

23 ... interior terrace edge

30 ... button

31 ... outer terrace edge

32 ... action piece

40 ... elastomer

41 ... flexure strip

42 ... last splenium

43 ... pressing down section

44 ... waterproof membrane

45 ... elastic flange

50 ... switch

51 ... the IC circuit board

Embodiment

The function and benefit of understanding structure content of the present utility model in depth and can reach for those skilled in the art are easy to is enumerated a specific embodiment now, and detailed introduction of conjunction with figs. is described as follows.

A kind of press-key structure please be consulted the of the present utility model three-dimensional combination section shown in Fig. 1,2, perspective exploded view and section combination schematic diagram of the present utility model shown in Figure 3.Press-key structure mainly is made of with switch 50 control board 10, combination pedestal 20, button 30, elastomer 40.Control board 10 is provided with perforation 11, is used for installing combination pedestal 20.

Combination pedestal 20 both sides are provided with trip 21, with place, corresponding bottom surface, perforation 11 both sides that are fastened in control board 10.The inside of combination pedestal 20 is Openworks shape, is used to install button 30 and elastomer 40.Combination pedestal 20 end faces are provided with opening 22, and terrace edge 23 in being provided with around the opening 22 is used for button 30 At time of ejects location.The outer terrace edge 31 that interior terrace edge 23 around the opening 22 that is provided with around the button 30 and makes up pedestal 20 is corresponding, button 30 At time of ejects, outer terrace edge 31 promptly can be positioned interior terrace edge 23, are used to prevent that button 30 from deviating from.Button 30 inside also are provided with action piece 32, are used for pressing by elastomer 40.Elastomer 40 is made by elastic material, the both sides of elastomer 40 are provided with flexure strip 41, flexure strip 41 is connected with all around elastic flange 45, the place, centre position of elastomer 40 is provided with splenium 42 up, the place, centre position of elastomer 40 is towards having pressing down section 43, and last splenium 42 contacts with button 30 bottoms, and pressing down section 43 is provided with one deck waterproof membrane 44, and contact, thereby reach waterproof effect with switch 50.Switch 50 is arranged on the IC circuit board 51.

By the utility model that above-mentioned each modular construction combined, a kind of press-key structure is provided, actual mechanical process is described as follows.

Please consult pressure of the present utility model shown in Figure 4 by with decontrol the action schematic diagram.When button 30 was depressed, the pressing down section 43 of elastomer 40 i.e. touch switch 50 synchronously, and when decontroling button 30, elastomer 40 restores to the original state again, made the pressure of button 30 more firm by moving.

In sum, the utility model provides a kind of press-key structure, through this creator actual manufacture finish and repeatable operation test after, confirm can reach really the desired function and benefit of the utility model.

Claims

1. a press-key structure is characterized in that comprising: control board, combination pedestal, button, elastomer and switch;

This control board is provided with the perforation that is used to install this combination pedestal; These combination pedestal both sides are provided with trip, described trip is fastened in the place, corresponding bottom surface, perforation both sides of this control board, and the inside of this combination pedestal is Openworks shape, inner this button of installing and this elastomer, this combination pedestal end face is provided with opening, and this around openings is provided with interior terrace edge; The corresponding outer terrace edge of terrace edge in this button is provided with on every side and is somebody's turn to do, this outer terrace edge is positioned terrace edge in this at the button At time of eject, and to locate this button, this button inside also is provided with and is used for pressing by this elastomeric action piece; These elastomeric both sides are provided with flexure strip, and this place, elastomeric centre position is provided with splenium up, and towards having pressing down section, splenium contacts with this button bottom on this, and this pressing down section then contacts with this switch; This switch is arranged on the IC circuit board.

2. press-key structure as claimed in claim 1 is characterized in that: be provided with one deck waterproof membrane between this elastomeric pressing down section and this switch.