CN201946476U

CN201946476U - Eccentrically triggered keyboard

Info

Publication number: CN201946476U
Application number: CN2011200286585U
Authority: CN
Inventors: 赵令溪
Original assignee: Darfon Electronics Suzhou Co Ltd; Darfon Electronics Corp
Current assignee: Darfon Electronics Suzhou Co Ltd; Darfon Electronics Corp
Priority date: 2011-01-22
Filing date: 2011-01-22
Publication date: 2011-08-24
Anticipated expiration: 2021-01-22

Abstract

The utility model provides a keyboard, which comprises a circuit board, key modules, a base body, key caps and elastic parts, in cantilever type keys of the keyboard, the elastic parts for providing knocking finger feeling of keys and providing restoring force of the keys are arranged below extension parts by utilizing the extension parts which are farther away from pivot points on the key caps, or between pressing parts and the extension parts, and the distance between a contact point for oppressing each elastic part to deform and the pivot point of each cantilever is larger than the distance between each pressing part and the pivot point, therefore, longer oppression deformation stroke can be generated to each elastic part through pressing shorter stroke of the corresponding pressing part by a user so as to effectively increase the knocking finger feeling of the elastic parts.

Description

The eccentric keyboard that triggers

Technical field

The relevant a kind of keyboard of the utility model triggers keyboard with the off-centre that suitable resilience sense of touch is provided under referring to especially that a kind of elastic component is non-and being located at keycap.

Background technology

With regard to the use habit of present PC, keyboard is one of indispensable input equipment, in order to input characters, symbol or numeral.Moreover, the large-sized processing equipment that consumption electronic products that daily life such as contacted or industrial quarters are used all need be provided with press-key structure as input unit, to operate above-mentioned electronic product and process equipment.

Known button mainly comprises base plate, keycap and elevating mechanism to connect this base plate and this keycap.Since keycap need stablize move up and down to provide push, the function of trigger switch, so in prior art, the design of employing elastic caoutchouc packing ring as elevating mechanism arranged, wherein the elastic caoutchouc packing ring is to be vertically set on below the keycap.When button pressed, rubber washer compressive deformation and the elastic-restoring force that provides button upwards to reply.Generally speaking, rubber washer needs compressive deformation to knock the finger sense to a certain degree producing suitable button, but under the development trend of keyboard and keycap slimming, keycap presses down mobile stroke and also dwindles relatively, therefore can't increase under the prerequisite that keycap presses down stroke, refer to sense for rubber washer still being produced effectively knocking, on the design difficulty of rubber washer, increase many relatively.

On the other hand, more and more keyboards with lighting function are arranged, when using the keycap of transparent or tool light transmission, the light source of keycap below can cause different light effects to increase the function of keyboard to keycap.Yet under existing design, the elevating mechanism (elastic caoutchouc packing ring) of keycap below, part or whole blocks the carrying out of light, cause no small influence for the luminous performance of illuminated keyboard.

The utility model content

The utility model provides a kind of keyboard, includes circuit board and button module.This circuit board has switch, and this button module is arranged on this circuit board.This button module includes pedestal, keycap and elastic component.This keycap is connected on this pedestal by fulcrum, and this keycap has press section and extension, and the distance of this extension and this fulcrum is greater than the distance of this press section and this fulcrum.This elastic component is arranged between this switch of this extension of this keycap and this circuit board, and this elastic component is subjected to this keycap by compressive strain so that moving this switch.

According to keyboard described in the utility model, extension along first direction move with by second stroke of compressive strain elastic component greater than the press section stressed and first stroke that move relative to pedestal along first direction.

Also comprise loam cake according to keyboard described in the utility model, be arranged on the button module, loam cake has perforate, and the press section of keycap protrudes in perforate, and loam cake ends to the motion of extension with the restriction keycap.

According to keyboard described in the utility model, elastic component is a rubber washer.

According to keyboard described in the utility model, circuit board is a film circuit board.

The utility model provides a kind of keyboard in addition, includes circuit board and button module.This circuit board has switch, and this button module is arranged on this circuit board.This button module includes pedestal, keycap and elastic component.This keycap is connected on this pedestal by fulcrum, and this keycap has press section and extension, and the distance of this extension and this fulcrum is greater than the distance of this press section and this fulcrum.This elastic component is arranged between this switch of this keycap and this circuit board, this elastic component is subjected to this keycap by compressive strain so that moving this switch, wherein this elastic component is arranged under this press section and this extension, and the distance of this elastic component and this fulcrum is greater than the distance of this press section and this fulcrum.

According to keyboard described in the utility model, the contact point of keycap and elastic component along first direction move with by second stroke of compressive strain elastic component greater than the press section stressed and first stroke that move relative to pedestal along first direction.

Keyboard of the present utility model will be arranged at the eccentric part that relative keycap has the big arm of force as elevating mechanisms such as elastic components, when pushing keycap, can obtain clearly to press the end finger sense more easily, the design of elastic component is more prone to, and the design of the off-centre of elastic component also can make illuminated keyboard can verily be presented on the keycap in luminous performance, and the influence that is not subjected to elevating mechanism is disturbed.

Description of drawings

Fig. 1 is the schematic diagram of the disclosed keyboard of the utility model.

Fig. 2 is the wherein schematic diagram of a button module of keyboard one embodiment.

Fig. 3 is the side sectional view of the button module of Fig. 2.

Fig. 4 is the wherein schematic diagram of a button module of another embodiment of keyboard.

Fig. 5 is the side sectional view of the button module of Fig. 4.

Embodiment

For making the purpose of this utility model, structure, feature and function thereof there are further understanding, cooperate embodiment to be described in detail as follows now.

Please refer to Fig. 1, Fig. 1 is the schematic diagram of the disclosed eccentric keyboard 1 that triggers of the utility model.Keyboard 1 has loam cake 30 and a plurality of button module 20.Please refer to Fig. 2 and Fig. 3, Fig. 2 is the wherein schematic diagram of a button module 20 of keyboard 1 one embodiment, and Fig. 3 is the side sectional view of the button module 20 of Fig. 2.As shown in the figure, keyboard 1 has circuit board 10 by the structure of base plate 50 as the bottom on base plate 50, and button module 20 then is arranged on the

circuit board

10, and 30 of loam cakes are arranged on the button module 20.Wherein in embodiment of the present utility model, circuit board 10 is a film circuit board, but its corresponding each button module 20 places then have the switch 11 that pressurized triggers.20 of button modules include pedestal 21, keycap 22 and elastic component 40, wherein pedestal 21 and keycap 22 structure that can be one of the forming or the element of opening in two minutes.

Fulcrum 25 between keycap 22 and the pedestal 21 is connected in pedestal 21 parts for keycap 22, and forming the cantilever type button, and keycap 22 has outstanding press section 24 and extends extension 23 under the loam cake 30.The loam cake 30 of keyboard 1 has a plurality of perforates 31, the keycap 22 of the corresponding a plurality of button modules 20 of difference, therefore after each elements combination of keyboard 1 was got up, the press section 24 of keycap 22 protruded in its corresponding perforate 31, is directed downwards along y for the user and pushes keycap 22.Therefore 23 of the extensions of keycap 22 extend under the loam cake 30, when keycap 22 pressurizeds and when mobile vertically, horizontally extending loam cake 30 can only prop up the extension 23 of keycap 22, therefore can limit keycap 22 above horizontal line and beating of making progress.

Because the cantilever structure of keycap 22 in the button module 20, therefore with respect to fulcrum 25, the press section 24 of keycap 22 when pressurized moves, must meet the geometrical property in the space along vertical direction (y direction).Please continue with reference to figure 3.As shown in Figure 3, with respect to the fulcrum 25 that keycap 22 moves, the extension 23 of keycap 22 is positioned at a distance along the x direction, that is extension 23 and fulcrum 25 apart from d ₂Greater than press section 24 and fulcrum 25 apart from d ₁The elastic component 40 of each button module 20 in the keyboard 1 (preferably being rubber washer) then is arranged at extension 23 belows, promptly between extension 23 and the circuit board 10, as for being subjected to elastic component 40 11 squeeze-activated on switches to be positioned at elastic component 40 belows in the circuit board 10.Pushed by the user when keycap 22 and be directed downwards when mobile along y, elastic component 40 is compressive deformation and activate switch 11 under it to produce corresponding signal also.

What specify is that in the embodiment of Fig. 2 and Fig. 3, elastic component 40 is positioned at the below of extension 23, that is is not positioned at 24 belows, press section of keycap 22 fully.And as previously mentioned with the viewpoint of space geometry, when the press section 24 of keycap 22 stressed and move the first stroke L relative to pedestal 21 vertically downward along the y direction ₁The time, therefore extension 23 also (because of the mobile range of press section 24 and extension 23 is all quite little, can be considered moving vertically) vertically downward along the y direction and moves the second stroke L ₂, the second stroke L that moves of extension 23 wherein ₂The first stroke L that meeting is moved greater than press section 24 ₁Thus, in the operation of keyboard 1 for each button module 20, can push the press section 24 of keycap 22 more by a small margin, and therefore the amplitude that still causes enough compressings to be out of shape to elastic component 40 can effectively increase elastic component 40 and clearly knock finger sense (click).In addition, because elastic component 40 is not positioned at the below of press section 24 fully, therefore between the press section 24 of keycap 22 and circuit board 10 (or the film at elastic component 40 places), provide a unseparated space, when each keycap 22 of keyboard 1 is the illuminated keyboard of transparent or printing opacity, can completely present the required effect of illuminated keyboard.

Please refer to Fig. 4 and Fig. 5, Fig. 4 is the wherein schematic diagram of a button module 20 ' of keyboard 1 one embodiment, and Fig. 5 is the side sectional view of the button module 20 ' of Fig. 4.Except previous embodiment, 40 of elastic components at button module 20 ' can be positioned at 24 belows, press section in the part, or as shown in the figure, elastic component 40 is arranged at the extension 23 of keycap 22 and the below of press section 24, and promptly elastic component 40 is connected in the contact point 26 of keycap 22.With the similar principle of previous embodiment, in the keycap 22 of button module 20 ' contact with the contact point 26 that drives elastic component 40 compressive deformations and fulcrum 25 apart from d ₃Greater than press section 24 and fulcrum 25 apart from d ₁, elastic component 40 then is arranged at contact point 26 belows, is subjected to elastic component 40 squeeze-activated switches 11 to be positioned at elastic component 40 belows promptly between keycap 22 and the circuit board 10, and in the circuit board 10.And when the press section 24 of keycap 22 stressed and move the first stroke L relative to pedestal 21 vertically downward along the y direction ₁The time, keycap 22 also moves the second stroke L along the y direction vertically downward with the contact point of elastic component 40 ₃, the second stroke L that moves of contact point wherein ₃The first stroke L that meeting is moved greater than press section 24 ₁

In the embodiment of Fig. 4 and Fig. 5, elastic component 40 not exclusively is positioned at 24 belows, press section of keycap 22.Thus, in the operation of keyboard 1 for each button module 20 ', can push the press section 24 of keycap 22 more by a small margin, and therefore the amplitude that still causes enough compressings to be out of shape to elastic component 40 can effectively increase elastic component 40 and clearly knock finger sense (click).

The disclosed keyboard of the utility model is in the cantilever type button, utilize relative fulcrum extension far away on the keycap, knock the finger sense and provide the elastic component of button restoring force to be arranged on the extension below being used to provide button, or between press section and the extension, make the distance of the distance of the contact point of compressing elastic component distortion and cantilever fulcrum greater than press section and fulcrum, push elastic component being produced than long compressing deformation stroke of press section to reach the user by this, refer to sense with knocking of effective increase elastic component than short stroke.

The utility model is described by above-mentioned related embodiment, yet the foregoing description is only for implementing example of the present utility model.Must be pointed out that the embodiment that has disclosed does not limit scope of the present utility model.On the contrary, change and the retouching done in not breaking away from spirit and scope of the present utility model all belong to scope of patent protection of the present utility model.

Claims

1. keyboard is characterized in that including:

Circuit board has switch; And

The button module is arranged on this circuit board, and this button module includes:

Pedestal;

Keycap is connected on this pedestal by fulcrum, and this keycap has press section and extension, and the distance of this extension and this fulcrum is greater than the distance of this press section and this fulcrum; And

Elastic component is arranged between this switch of this extension of this keycap and this circuit board, and this elastic component is subjected to this keycap by compressive strain so that moving this switch.

2. keyboard as claimed in claim 1, it is characterized in that this extension along first direction move with by second stroke of this elastic component of compressive strain greater than this press section stressed and first stroke that move relative to this pedestal along this first direction.

3. keyboard as claimed in claim 1 is characterized in that also comprising loam cake, is arranged on this button module, and this loam cake has perforate, and this press section of this keycap protrudes in this perforate, and this loam cake ends to this extension to limit the motion of this keycap.

4. keyboard as claimed in claim 1 is characterized in that this elastic component is a rubber washer.

5. keyboard as claimed in claim 1 is characterized in that this circuit board is a film circuit board.

6. keyboard is characterized in that including:

Circuit board has switch; And

Pedestal;

Elastic component, be arranged between this switch of this keycap and this circuit board, this elastic component is subjected to this keycap by compressive strain so that moving this switch, and wherein this elastic component is arranged under this press section and this extension, and the distance of this elastic component and this fulcrum is greater than the distance of this press section and this fulcrum.

7. keyboard as claimed in claim 6, the contact point that it is characterized in that this keycap and this elastic component along first direction move with by second stroke of this elastic component of compressive strain greater than this press section stressed and first stroke that move relative to this pedestal along this first direction.

8. keyboard as claimed in claim 6 is characterized in that also comprising loam cake, is arranged on this button module, and this loam cake has perforate, and this press section of this keycap protrudes in this perforate, and this loam cake ends to this extension to limit the motion of this keycap.

9. keyboard as claimed in claim 6 is characterized in that this elastic component is a rubber washer.

10. keyboard as claimed in claim 6 is characterized in that this circuit board is a film circuit board.