CN200993915Y

CN200993915Y - Button structure

Info

Publication number: CN200993915Y
Application number: CN 200620147450
Authority: CN
Inventors: 秦国强
Original assignee: Darfon Electronics Corp
Current assignee: Darfon Electronics Corp
Priority date: 2006-12-05
Filing date: 2006-12-05
Publication date: 2007-12-19
Anticipated expiration: 2016-12-05

Abstract

A key structure composes a base board, a switch element, and an elastic device. The base board is provided with a groove, and is divided into a first part and a second part. The switch element is arranged on the base board. The switch component will be triggered by the elastic device on the first part, when the elastic device is pressed by an external force.

Description

Press-key structure

Technical field

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

Background technology

Referring to Fig. 1, existing press-key structure 10 comprises a substrate 11, a film circuit board 12, an elastic component 13, a keyseat 14 and a keycap 15.Be stacked with film circuit board 12, elastic component 13, keyseat 14 and keycap 15 on the substrate 11 in regular turn, wherein keycap 15 is arranged in the keyseat 14, and, can make circuit butt on elastic component 13 and the film circuit board 12, and then with circuit turn-on by pushing keycap 15 with elastic component 13 butts.

Yet keyboard structure if external foreign matter or dust fall between film circuit board 12 and the substrate 11 accidentally, causes the improper conducting of film circuit board 12 easily in the process of assembling.

The utility model content

The purpose of this utility model is to provide a kind of press-key structure, to address the above problem.

The purpose of this utility model is achieved in that promptly provides a kind of press-key structure, comprises a substrate, a switch element and an elastic component.Substrate has a groove, and substrate is divided into one first one and one second one.Switch element is arranged at substrate.Elastic component is arranged at first one, and when elastic component is subjected to a pressed by external force, the touch switch element.

Advantage of the present utility model is, increases by a groove to hold external foreign matter on substrate, avoids causing the improper conducting of circuit, and it is rational in infrastructure, simple.

Description of drawings

Fig. 1 is the schematic diagram of existing press-key structure;

Fig. 2 is the schematic diagram of the utility model press-key structure;

Fig. 3 A-Fig. 3 B is the cutaway view of the utility model press-key structure along A-A tangent line among Fig. 2;

Fig. 4 is the substrate schematic diagram of the utility model press-key structure;

One of Fig. 5 A-Fig. 5 B the utility model press-key structure changes example, along the profile of A-A tangent line among Fig. 2;

Fig. 6 is the substrate schematic diagram of press-key structure among the utility model Fig. 5 A-Fig. 5 B;

Fig. 7 is the cutaway view of substrate and switch element among Fig. 6;

Fig. 8 is the cutaway view of the utility model substrate and another variation example of switch element;

Fig. 9 A-Fig. 9 D is the vertical view of other variation example of the utility model substrate.

The main element symbol description:

10～press-key structure

100～press-key structure

100 '～press-key structure

101～substrate

101 '～substrate

101A～first one

101A '～first one

101B～second one

101B '～second one

102～switch element

103～elastic component

104～keyseat

105～keycap

11～substrate

12～film circuit board

13～elastic component

14～keyseat

15～keycap

B1～first

B2～second

N～annular groove

N '～groove

P～protuberance

θ～acute angle

Embodiment

Referring to Fig. 2, press-key structure 100 of the present utility model comprises a substrate 101, a switch element 102, an elastic component 103, a keyseat 104 and a keycap 105, and wherein switch element 102 is a film circuit board.

Fig. 3 A and Fig. 3 B are the sectional axonometric drawing of the utility model press-key structure 100 along A-A line among the 2nd figure.Substrate 101 has an annular groove N, and groove N is divided into one first 101A and one second 101B (as shown in Figure 4) with substrate 101.Elastic component 103 is arranged at first 101A of substrate 101, and has a protuberance P, and the position of 101 second 101B of protuberance P and substrate is relative.Switch element 102 is arranged between substrate 101 and the elastic component 103, which is provided with the corresponding circuit with protuberance P.Keyseat 104 is positioned at elastic component 103 tops, and keycap 105 is arranged at keyseat 104 inside, and a part exposes to keyseat 104, and another part and elastic component 103 butts.

When an external force put on keycap 105, keycap 105 was pushed elastic component 103, made elastic component 103 distortion, corresponding circuit butt (shown in Fig. 3 B) on the protuberance P of elastic component 103 and the switch element 102, and then with this circuit communication with touch switch.

The setting of groove N can be held external foreign matter or dust, if when assembling, foreign matter fell between substrate 101 and the switch element 102 accidentally, the foreign matter that can avoid falling on 101 first 101A of substrate enters 101 second 101B of substrate, prevents the improper conducting of circuit.

Fig. 5 A and Fig. 5 B show that one of the utility model press-key structure 100 ' changes example.Substrate 101 ' has a groove N ', and groove N ' is divided into one first 101A ' and one second 101B ' with substrate 101 ', second 101B ' has one first B1 and one second B2 again, wherein first B1 is a plane, and second B2 is an inclined-plane (as shown in Figure 6), forms an acute angle theta (as shown in Figure 7) between this second B2 and the switch element 102.In this embodiment, except substrate 101 ', other element is all identical with previous embodiment.

It should be noted, in this embodiment, second 101B ' of substrate 101 ' is divided into first B1 and second B2, but be not limited thereto, for example second 101B ' can be a convex surface (as shown in Figure 8) or other shape, if make second 101B ' can and switch element 102 between be an acute angle.

In addition, in the above-described embodiments, the groove N ' of press-key structure 100 ' but is not limited thereto ringwise, sees also Fig. 9 A-Fig. 9 D, and groove N ' also can be that other shape is formed.

The utility model substrate 101,101 ' second 101B, 101B ' or the design of its second included (inclined-plane) B2 helps foreign matter or dust landing in groove, if when assembling, foreign matter or dust fall between 101 ' second 101B ' of substrate and the switch element 102 accidentally, foreign matter or dust can be gone among the groove N ' by the inclined plane landing of second 101B ', also can avoid the improper conducting of circuit.

Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; anyly be familiar with this operator; in not breaking away from spirit and scope of the present utility model; when can doing a little change and retouching, therefore protection range of the present utility model is when looking appended being as the criterion that claim defined.

Claims

1. a press-key structure is characterized in that, comprising: a substrate, have a groove, and this groove is divided into one first one and one second one with this substrate; One switch element is arranged at this substrate; And an elastic component, be arranged at this first one, when this elastic component is subjected to a pressed by external force, touch this switch element.

2. press-key structure as claimed in claim 1 is characterized in that this switch element comprises a film circuit board.

3. press-key structure as claimed in claim 2 is characterized in that, forms an acute angle between this film circuit board and this second one.

4. press-key structure as claimed in claim 1 is characterized in that, this groove is an annular.

5. press-key structure as claimed in claim 1 is characterized in that this elastic component has a protuberance, and position of second one of this protuberance and this is relative, and this protuberance when this elastic component is subjected to a pressed by external force touches this switch element.

6. press-key structure as claimed in claim 1 is characterized in that, more comprises a keycap, is arranged on this elastic component, and this keycap when this keycap is subjected to a pressed by external force is pushed this elastic component, makes this elastic component touch this switch element.

7. press-key structure as claimed in claim 1 is characterized in that, this second one comprises a plane.

8. press-key structure as claimed in claim 1 is characterized in that, this second one comprises a convex surface.

9. press-key structure as claimed in claim 1 is characterized in that, this second one comprises an inclined-plane.