CN2665894Y

CN2665894Y - keyboard key structure

Info

Publication number: CN2665894Y
Application number: CN 200320125144
Authority: CN
Inventors: 陈道生
Original assignee: CAN Tech Co Ltd
Current assignee: CAN Tech Co Ltd
Priority date: 2003-12-04
Filing date: 2003-12-04
Publication date: 2004-12-22
Anticipated expiration: 2013-12-04

Abstract

The utility model provides a keyboard button's institutional advancement, it mainly by: when the assembly is used, the pressing column and the rib of the key form a flat pressing surface and contact with the top of the elastic coupling body, and the elastic coupling body is pressed by the pressing column and the rib of the key to deform in a compression way so that the coupling salient point contacts with the contact on the conduction device to form the conduction of the contact so as to send a signal corresponding to the key, so that the elastic coupling body is correctly positioned without sliding, and the phenomena of squeezing, plugging and deformation of the elastic coupling body can be avoided.

Description

Keyboard press button structure

Technical field

The utility model refers to it is that relevant a kind of providing assembled easily and difficult drop-off especially about a kind of structural improvement of keyboard, and the structural improvement of the keyboard that correct signal can be imported.

Background technology

As shown in Figure 1a, be to be the keyboard of general PC and the structure cutaway view of last button thereof, the main body of its keyboard B is provided with plurality of keys socket B2, plant for button K1, then be provided with a circuit board B3 at the next place that corresponds to button K1, and between circuit board B3 and button K1, be provided with one and can be subjected to compressing of button K1 and make the elasticity coupler body K2 of circuit board B3 contact conducting, last again by the complete shell mechanism of upper and lower cover B1, B4 structure prestige integral keyboard B; Wherein, button socket B2 is formed with trepanning B21 and the slot B22 in order to guiding button K1 knee-action, as for button K1 then cooperate be formed with one can penetrate trepanning B21 compress post K11, and prevent the grab plate K12 that gets loose with formation in order to insert slot B22, so as to button K1 being limited on the main body of keyboard B.

In addition, be formed with a frame cover B23 of portion in order to compress the next place of post K11 at button K1 with elasticity coupler body K2 is spacing at the lower edge of the button socket B2 of keyboard B, its elasticity coupler body K2 one is inverted recessed cup-shaped housing, be provided with one on its enclosure interior summit and couple salient point K21, touch and when moving downwards with the pressure that is subjected to the user as its button K1, shown in Fig. 1 b, its elasticity coupler body K2 is subjected to promptly that button K1's compress pressing down and compression of post K11, with by coupling that salient point K21 contacts with contact on the circuit board B3 and the conducting that constitutes this contact so as to sending the pairing signal of this button K1, and when user's release is touched the pressure of button K1, its elasticity coupler body K2 can form an elastic reaction and return back to original shape, make and end sending of signal, and with the state of button K1 ejection to rising.

Yet, owing to be state between the root edge of its elasticity coupler body K2 and circuit board B3 for fitting, so when its elasticity coupler body K2 is subjected to extruding, after its inner air is squeezed and discharges, to make its inside be vacuum state and the original shape that after pressure is touched the active force disappearance, can't rebound really, to such an extent as to influence the normal function of button K1; Especially, compressing of its elasticity coupling building body K2 and button K1 do not have any positioning action between post K11, and compressing post K11 is to be the circular hollow column, the press face at itself and the alternate place of elasticity coupler body K2 is a periphery, can't press down really and easy deflection, and cause elasticity coupler body K2 distortion easily, and produce phenomenon crowded, that fill, or be to cause the paragraph difference of button K1 obvious inadequately, and influence the speed of user's operation push-button.

The utility model content

Main purpose of the present utility model, be to provide a kind of structural improvement of keyboard, its mainly by: assemblies such as plurality of keys socket, button and elasticity coupler body are formed, when assembling, shell fragment elasticity by button snaps in the button socket, and be placed under the projection by protruding button, button is fastened in the button socket and difficult drop-off.

A kind of keyboard press button structure, this structure includes:

The button socket; Be that row is located on the main body of keyboard and plants for button, it is a rectangle guide groove, is formed with a projection respectively at the two-phase corresponding surface of rectangle guide groove internal face;

Button, be that root edge by a keycap is extended with a hollow cylinder that slightly becomes rectangle downwards, four limits of this cylinder slightly outwards are convexly equipped with into the projection of the shape of the mouth as one speaks, and compress post in the inboard formation one of corresponding two walls of cylinder, broken respectively two grooves that are provided with in the cylinder wall in its two outside and close projection place, then form a shell fragment between this two groove, its root edge then is formed with protruding button, and be formed with rib in the shell fragment inboard, the next place that corresponds to button then is provided with a conducting device, and is provided with one can be subjected to compressing of button and makes the elasticity coupler body of conducting device contact conducting between conducting device and button;

The elasticity coupler body, at the elastic container portion inner face top of elasticity coupler body and be provided with and couple salient point, be formed with laciniation in elastic container portion root edge in addition, when its elasticity coupler body was rebounded original shape via the elastic force effect of elastic container portion, this laciniation constitutes one allowed air enter duct between elasticity coupler body and conducting device; Can allow an elasticity junctor return back to original shape really to avoid producing vacuum phenomenon.

According to this, during assembling, shell fragment elasticity by button snaps in the button socket, and be placed under the projection by protruding button, button is fastened in the button socket and difficult drop-off, during use, because of button compress post and rib forms a smooth press face, and contact with elasticity coupler body top, the elasticity coupler body promptly be subjected to button compress post and rib presses down and compression, contacting with contact on the conducting device by coupling salient point, and the conducting that constitutes this contact is so as to sending the pairing signal of this button, make the correct location of elasticity coupler body can not produce slippage, and can avoid the elasticity coupler body crowded, the phenomenon of filling and being out of shape takes place.

Description of drawings

Fig. 1 a is the press-key structure cutaway view of general keyboard.

Fig. 1 b is the action schematic diagram of known button.

Fig. 2 is the structural upright exploded view of keyboard in the utility model.

Fig. 3 is the structural perspective of button in the utility model.

Fig. 4 be button socket in the utility model,, the structural upright exploded view of button and elasticity coupler body.

Fig. 5 is the structure cutaway view of keyboard in the utility model.

Fig. 6 is the action schematic diagram of keyboard in the utility model.

Fig. 7 is another structure cutaway view of keyboard conducting device in the utility model.

[figure number explanation]

Keyboard B loam cake B1

Button socket B2 trepanning B21

The slot B22 frame cover B23 of portion

Circuit board B3 lower cover B4

Film C1-C3 contact C11, C31

Hole C21 button K1

Compress post K11 grab plate K12

Elasticity coupler body K2 couples salient point K21

Button socket 10 rectangle guide grooves 11

Projection 12 frame cover portions 13

Button 20 keycaps 21

Cylinder 22 projections 23

Compress post 24 grooves 25

Shell fragment 26 protruding buttons 261

Rib 27 elasticity coupler body 30

Elastic container portion 31 couples salient point 311

Laciniation 32

Embodiment

For the clear structure of the present utility model of your auditor is formed and the overall operation mode, cooperate graphic being described as follows now:

Keyboard press button structure improvement of the present utility model, the basic structure of its integral keyboard button, as shown in Figures 2 and 3, it includes at least: button socket 10, be that row is located on the main body of keyboard B the plant for button, it is a rectangle guide groove 11, is formed with a projection 12 respectively in the two-phase corresponding surface of rectangle guide groove 11 internal faces.

Button 20, be that root edge by a keycap 21 is extended with a hollow cylinder 22 that slightly becomes rectangle downwards, four limits of this cylinder 22 slightly outwards are convexly equipped with into the projection 23 of the shape of the mouth as one speaks, and compress post 24 in the inboard formation one of cylinder 22 corresponding two walls, broken respectively two grooves 25 that are provided with in the cylinder wall in its two outside and close projection 23 places, 25 of this two grooves then form a shell fragment 26, its root edge then is formed with protruding button 261, and be formed with rib 27 in shell fragment 26 inboards, the next place that corresponds to button 20 then is provided with a conducting device, be illustrated in figure 3 as the structure of a circuit board B3, and be provided with one at circuit board B3 and 20 of buttons and can be subjected to compressing of button 20 and make the elasticity coupler body 30 of circuit board B3 contact conducting.

Elasticity coupler body 30, please be simultaneously with reference to shown in Figure 4, system is made by the conductive rubber material, at the elastic container portion 31 inner face tops of elasticity coupler body 30 and be provided with and couple salient point 311, be formed with laciniation 32 in elastic container portion 31 root edges in addition, when its elasticity coupler body 30 is rebounded original shape via the elastic force effect of elastic container portion 31, this laciniation 32 can constitute one allows air enter duct between elasticity coupler body 30 and circuit board B3, can allow elasticity coupler body 30 return back to original shape really to avoid producing vacuum phenomenon.

According to this, during assembling, snap in the button socket 10 by shell fragment 26 elasticity of button 20, and be placed in projection 12 times, button 20 is fastened in the button socket 10 fast by protruding button 261, and in the process of transporting difficult drop-off.

And when whole the use, as Fig. 5 and shown in Figure 6, this elasticity coupler body 30 compresses post 24 the next places by frame cover portion 13 is spacing at button 20, and the intersection that compresses post 24 and two ribs 27 of button 20 is vertical and form a smooth press face, and contact with elasticity coupler body 30 tops, so can be because of not pushing the phenomenon that produces deflection, elasticity coupler body 30 is pressed down and compression with rib 27 by the post 24 that compresses of button 20 promptly, with by coupling that salient point 311 contacts with contact on the circuit board B3 and the conducting that constitutes this contact so as to sending this button 20 pairing signals, make elasticity coupler body 30 correct location can not produce slippage, and can avoid elasticity coupler body 30 crowded, the phenomenon of filling and being out of shape takes place.

And this conducting device, also can be as shown in Figure 7, formed by three-layer thin-film, wherein ground floor film C1 and three-layer thin-film C3 go up and are formed with contact C11 with respect to coupling salient point 311, C31, on second layer film C2, then break and be provided with corresponding hole C21, be located at the next place of button 20 and elasticity coupler body 30 equally, wherein 30 of elasticity coupler body can be the silica gel material, and press down with rib 27 when elasticity coupler body 30 is subjected to the post 24 that compresses of button 20, compress contact C11 on the ground floor film C1 by coupling salient point 311, the hole C21 that sees through on the second layer film C2 contacts with contact C31 on the three-layer thin-film C3, and the conducting that constitutes this contact is so as to sending this button 20 pairing signals.

As mentioned above, the structural improvement of the utility model keyboard provides an assembling easy and difficult drop-off, and can be with the keyboard press button structure improvement of correct signal input, really to meet novel patent condition, the existing application that offer utility model patent in accordance with the law; Yet above implementation and graphic shown in, it only is one of the utility model preferred embodiment, be not in order to limitation the utility model, therefore, all personages who is familiar with the utility model skill, that does according to spirit of the present utility model is approximate with structure of the present utility model, device, feature etc., identical, all should belong to of the present utility model founding within purpose and the claim.

Claims

1, a kind of keyboard key structure, it is characterized in that, this structure comprises:

Button socket; it is arranged on the main body of the keyboard for key insertion, which is a rectangular guide groove, and a protrusion is formed on two corresponding surfaces of the inner wall of the rectangular guide groove;

The key is a slightly rectangular hollow cylinder extending downward from the bottom edge of a keycap. The four sides of the cylinder are slightly protruding outwards to form a mouth-shaped convex column, and formed on the inner side of the corresponding two walls of the cylinder. A pressing post has two grooves on the wall surface of the two outer sides of the post and near the protruding post. A shrapnel is formed between the two grooves, and a convex button is formed on the bottom edge of the shrapnel. The rib is provided with a conduction device corresponding to the lower position of the key, and an elastic coupling body that can be pressed by the key to make the contact of the conduction device conductive is provided between the conduction device and the key;

The elastic coupling body has a coupling convex point on the top of the inner surface of the elastic shell of the elastic coupling body, and a sawtooth structure is formed on the bottom edge of the elastic shell. The hole between the lead-through device.

2. The keyboard key structure according to claim 1, wherein the conduction device is a circuit board.

3. The keyboard key structure according to claim 2, characterized in that: the circuit board is installed at the lower position of the key and the elastic coupling body, wherein the elastic coupling body is made of conductive rubber, so that it can be coupled The bumps conduct when they come into contact with the contacts on the circuit board.

4. The key structure of the keyboard according to claim 1, wherein the conduction device is composed of three layers of films.

5. The keyboard key structure according to claim 4, wherein the three-layer thin film is installed at the lower position of the key and the elastic coupling body, wherein the elastic coupling body is made of silicon rubber.

6. The keyboard key structure according to claim 1, characterized in that: the lower edge of the key socket is formed with a frame cover portion for limiting the elastic coupling body at the lower position of the pressing column of the key.