CN200947400Y - Keying structure - Google Patents

Abstract

A keying structure is provided, which includes a plurality of contacts and a controller. The contacts are provided with a spring component and a fixing component, and the controller is provided with a compression component and a combination component. The controller combines with the proper contacts selectively for the actual electrical linkage demands.

Description

Press-key structure

Technical field

The utility model relates to a kind of press-key structure, particularly a kind of press-key structure of being exported a signal with control piece by the contact that mutually combines.

Background technology

Such as the large-sized processing equipment that consumer level electronic product that daily life contacted or industrial quarters are used all need be provided with press-key structure as media, to control above-mentioned electronic product and process equipment.General existing press-key structure is divided into dome switch (Dome Switch) and two kinds of kenels of elastomeric switch (Rubber Switch) haply.

Figure 1A is depicted as the schematic perspective view of the dome switch of prior art.One metal clips 11 is set on the electrical contact 31 of circuit board 30, when user's pressing keys 12, promptly electrically be contacted with electrical contact 31 against metal clips 11, to export the signal of a correspondence, and utilize the elastic force of metal clips 11 itself, discharge the back and return back to the home position in button 12 pressurizeds.

Figure 1B is depicted as the schematic perspective view of the elastomeric switch of prior art.With an elastomeric material 20 several buttons 21 are arranged formation one module with constant spacing, and be provided with conductive rubber 22 with respect to an end of electrical contact 31 in button 21, when operation pressing keys 21, its conductive rubber 22 electrically contacts with corresponding electrical contact 31, and the corresponding signal of output, and utilize the elastic force of elastomeric material 20 to make button 21 return back to the home position.

Shown in Figure 1A, because existing dome switch must be attached at metal clips 11 on the electrical contact 31 with a transparent membrane 13, to avoid metal clips 11, cause button 12 can't electrically be contacted with electrical contact 31 by metal clips 11 because of external force breaks away from the relative position of electrical contact 31.Wherein, transparent membrane 13 is under using for a long time, and very likely it is functional because of the material deterioration loses, and the contraposition accuracy of metal clips 11 is reduced, and uses transparent membrane 13 will additionally increase the manufacturing cost of manufacturer.

Shown in Figure 1B, because the employed rubber module of existing elastomeric switch, in assembling, will cause taking of excessive space, and then cause the putting position of other electronics spare part to be restricted, and do not meet frivolous to electronic installation now requirement, and making the elastomeric switch module with elastomeric material 20, also is a cost burden for manufacturer.

Summary of the invention

In view of above problem, the purpose of this utility model is to provide a kind of press-key structure, and too high and key switch takies the restriction or the shortcoming in too much space with the manufacturing cost of improving prior art.

To achieve these goals, press-key structure of the present utility model includes a plurality of contacts and a control piece, wherein contact has an elastic portion and a fixed part, and control piece has a press section and a joint portion, and the joint portion of control piece is incorporated into the fixed part of contact.

Effect of the present utility model is the electrical demand that control piece can use according to reality, and optionally is arranged on the contact of different kenels, and can reach the purpose that simple and convenient assembly fast, significantly reduces occupation space and reduces manufacturing cost.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

Description of drawings

Figure 1A is the schematic perspective view of the dome switch of prior art;

Figure 1B is the schematic perspective view of the elastomeric switch of prior art;

Fig. 2 A is the decomposing schematic representation of the utility model first embodiment;

Fig. 2 B is the schematic perspective view of the utility model first embodiment;

Fig. 3 A is the decomposing schematic representation of the utility model second embodiment;

Fig. 3 B is the schematic perspective view of the utility model second embodiment;

Fig. 4 A is a control piece of the present utility model and the decomposing schematic representation that combines aspect of contact;

Fig. 4 B be control piece of the present utility model with contact combine aspect in conjunction with schematic diagram;

Fig. 5 A is a control piece of the present utility model and the decomposing schematic representation that combines aspect of contact; And

Fig. 5 B be control piece of the present utility model with contact combine aspect in conjunction with schematic diagram.

Wherein, Reference numeral

11 metal clipss, 12,21 buttons

13 transparent membranes, 20 elastomeric materials

22,1111 conductive rubbers, 30,300 circuit boards

31,310 electrical contacts, 100 press-key structures

110 contacts, 111 elastic portion

112 fixed parts, 1121 screw threads

1122 fins, 120 control pieces

122 joint portions, 121 press sections

1221 threads, 1222 caulking grooves

Embodiment

For making this novel purpose, structure, feature and function thereof there is further understanding, cooperates embodiment to be described in detail as follows now.

Fig. 2 A to Fig. 3 B is the schematic perspective view of the utility model first embodiment and second embodiment.As shown in the figure, the press-key structure 100 that the utility model discloses is arranged on the circuit board 300 with at least one contact 310, it includes a plurality of contacts 110 and a control piece 120, and contact 110 has an elastic portion 111 and a fixed part 112, and control piece 120 has a press section 121 and a joint portion 122, and joint portion 122 is incorporated in the fixed part 112, so that control piece 120 mutually combines with contact 110.Wherein, control piece 120 is had an off-position that keeps a constant spacing with electrical contact 310 normalities by the elastic characteristic of contact 110, and one with the electrical contact positions that contact of electrical contact 310, and control piece 120 is made with plastic material, and press section 121 is a convex structure, to make things convenient for the user to push control piece 120, joint portion 122 extends to form a latch structure by an end of press section 121, and be incorporated in the fixed part 112 of contact 110, electrically to contact with electrical contact 310.

Shown in Fig. 2 A and Fig. 2 B, the utility model first embodiment discloses the enforcement state of a dome switch.As shown in the figure, wherein the elastic portion 111 of contact 110 is a metal clips, when the user pushes control piece 120, promptly pushing against metal clips electrically contacts with electrical contact 310, and export the signal of a correspondence, and when the user discharged control piece 120, the joint portion 122 that is incorporated into fixed part 112 returned back to the off-position by the elastic force of the elastic portion 111 of contact 110, and promptly control piece 120 is suspended in the relative position place of electrical contact 310.Because control piece 120 directly is installed on the contact 110, thereby improve the application of force consistency of dome switch, to avoid the not good restriction of contraposition of existing dome switch.

Shown in Fig. 3 A and Fig. 3 B, the utility model second embodiment discloses the enforcement state of an elastomeric switch.As shown in the figure, wherein the elastic portion 111 of contact 110 is made with elastomeric material, and in elastic portion 111, be provided with a conductive rubber 1111, when the user pushes control piece 120, promptly push against conductive rubber 1111 and electrically contact, and export the signal of a correspondence with electrical contact 310, and when the user discharges control piece 120, the joint portion 122 that is incorporated into fixed part 112 returns back to the off-position by the resiliency characteristics of elastic portion 111, and promptly control piece 120 is suspended in the relative position place of electrical contact 310.

Shown in Fig. 4 A and Fig. 4 B, contact 110 of the present utility model can be thread fiting mode with the combining form of control piece 120.Wherein, the joint portion 122 of control piece 120 is provided with a thread 1221, and the fixed part 112 of contact 110 be provided with one with the screw thread 1121 of thread 1221 coupling, the demand that the user can use according to reality, and optionally the fixed part 112 of the joint portion 122 of control piece 120 and suitable contact 110 is mutually combined with locking mode.

Shown in Fig. 5 A and Fig. 5 B, contact 110 of the present utility model can be the inlay card mode with the combining form of control piece 120.Wherein, the joint portion 122 of control piece 120 is provided with two relative caulking grooves 1222, and the fixed part 112 of contact 110 is provided with two fins 1122 corresponding to caulking groove 1222, the user can be according to the demand of reality use, and optionally joint portion 122 is embedded in the fixed part 112, so that control piece 120 mutually combines in the inlay card mode with contact 110.

Compare with prior art, control piece of the present utility model is according to the electrically connect demand of reality, and optionally combine with the contact of suitable kenel, with the purpose that reaches quick assembling, significantly reduces the occupied space of press-key structure and reduce manufacturing cost.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims (5)

1, a kind of press-key structure is characterized in that, comprising:

One contact, it has an elastic portion and a fixed part; And

One control piece, it has a press section and a joint portion, and this joint portion is incorporated in this fixed part.

2, press-key structure according to claim 1 is characterized in that, this elastic portion is a metal clips.

3, press-key structure according to claim 1 is characterized in that, this elastic portion is an elastomeric material spare, and is provided with a conductive rubber spare in this elastic portion.

4, press-key structure according to claim 1 is characterized in that, this joint portion is provided with a thread, and this fixed part be provided with one with the screw thread that this joint portion is combined with this fixed part of this thread coupling.

5, press-key structure according to claim 1 is characterized in that, this joint portion is provided with a caulking groove, and is provided with a fin that this joint portion is combined with this fixed part in this fixed part.

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