CN101604590B - keypress and keyboard with same - Google Patents

Abstract

The invention discloses a keypress, comprising a key cap and a contact piece, wherein the key cap comprises a key cap cover, a key cap sidewall and a key cap base. The key cap base and the key cap cover are separately connected with the corresponding two sides of the key cap sidewall, a through-hole is arranged in the middle of the key cap base, the contact piece is connected with one side face of the key cap cover and arranged in a cavity which is formed by the key cap cover and the side face of the key cap, the contact piece is penetrated through the through-hole and the outer sidewall of the key cap base is inclined inwardly along the positive pressure direction of the keypress. The included angle between the outer sidewall of the key cap base and the positive pressure direction of the keypress is twice the maximal offset angle of the key. When keypress undertakes a lateral pressure, the distance between the outer sidewall of the key cap base on the raised end and a lining board of the keyboard can not be reduced when the keypress declines, thus avoiding the problem that the keypress is blocked owning to the contact between the side wall of the key cap base and the lining board of the keyboard. The invention also provides a keyboard with the keypress.

Description

A kind of keyboard and have the keyboard of this keyboard

Technical field

The present invention relates to electronic applications, particularly a kind of keyboard and keyboard with this keyboard.

Background technology

In the current rapidly society of information flow, computer has been the indispensable instrument of every profession and trade.The kind of computer and style also grow with each passing day along with its function and make rapid progress.Yet; no matter be the computer of which kind of style; the interface that its possess and user link up; remain based on keyboard; and the button on the keyboard can be pushed use usually repeatedly continually; how to increase the durable degree of button and the level of comfort in when operation, become the target that all big enterprises research and develop.

Fig. 1 is the perspective exploded view of traditional design keyboard, as shown in Figure 1, this keyboard compriseskey panel 201,keyboard 204,keyboard liner plate 202, water-proof silica-gel 203,binding layer 205,spacing layer 206,shell fragment 208,circuit board 207 and keyboard board 209.Thiskey panel 201,keyboard liner plate 202, water-proof silica-gel 203,binding layer 205,spacing layer 206,circuit board 207 andkeyboard board 209 are superimposed successively to fit together by the weldering of the kind on thekey panel 201 screw 201b location, thiskeyboard 204 is fixedly arranged between thiskey panel 201 and thiskeyboard liner plate 202, thisshell fragment 208 is fixedly arranged between this bindinglayer 205 and thisspacing layer 206, hold-down nut onkeyboard board 209 tightens fixing above all parts at last.

Wherein, be provided withsquare groove 201a in thiskey panel 201,keyboard 204 is placed in this square groove.Correspondingly, also havesquare groove 202a on thiskeyboard liner plate 202, leave reasonable distance betweenkeyboard 204 andkey panel 201, thekeyboard liner plate 202, makekeyboard 204 that free intercropping downward movement can be arranged.Whenkeyboard 204 was subjected to pushing, theseshell fragment 208 distortion touched the golden finger conducting on thecircuit board 207, finish once normal button process.Wherein, what water-proof silica-gel 203 played is dust-separation and waterproof effect, and bindinglayer 205,spacing layer 206 play the effect of fixing thisshell fragment 208.

The inventor is in realizing process of the present invention, and there are the following problems at least to find prior art:

1, card key case study

With reference to Fig. 2 a-2b, in the design of existing keyboard,keyboard 204 must keep certain spacing just can normally to be pressed and to upspring voluntarily withkey panel 201 andkeyboard liner plate 202 in stressed motion process.Ifkeyboard 204 stress points not at the center and at side, are pushedkeyboard 204 toward side pressure direction a, the spacing of the symmetry between its both sides and thekeyboard liner plate 202 then can a side increase, and a side diminishes.Stressed back when corresponding pivot moves downward atkeyboard 204,keyboard liner plate 202 diminishes along with pressing ofkeyboard 204 with the spacing d2 ofkeyboard 204, and 203 pairs ofkeyboards 204 of water-proof silica-gel have produced the bounce-back resistance, when push the side along with the spacing d2 ofkeyboard liner plate 202 andkeyboard 204 reducekeyboard 204 can occur and block by the phenomenon of not going down.In addition, also have certain error when having mismachining tolerance and assembling owing tokey panel 201 andkeyboard liner plate 202, the situation of card key can be more serious.Traditional design takes place for fear of the card key, only on the basis of normal value,key panel 201 is amplified with the spacing d1 ofkeyboard 204 and the spacing d2 ofkeyboard liner plate 202 andkeyboard 204, can causekeyboard 204 loosening like this, unresponsive phenomenon in the time of can side pressure occurring simultaneously.

2, dustproof case study

Shown in Fig. 2 a-2b, no matter keyboard in working order or inoperative pose, dust all can enter by the spacing d1 ofkey panel 201 withkeyboard 204, be deposited in thiskeyboard liner plate 202 andkeyboard 204 between the space in, as shown in phantom in FIG., when dust accretions during at the A of button face or B face, along the side pressure direction, direction or malleation direction shown in arrow a, promptly perpendicular to the direction of pushing of keytop, when direction is pushed thiskeyboard 204 shown in arrow e, phenomenons such as card key and button be malfunctioning may occur, shorten the normal useful life of keyboard.If as previously mentioned, to block and the spacing d1 ofkey panel 201 withkeyboard 204 amplified for fear ofkeyboard 204, external dust is with the easier keyboard that enters.

Therefore, demand urgently providing a kind of improved keyboard and keyboard to overcome above-mentioned defective.

Summary of the invention

The purpose of this invention is to provide a kind of keyboard that can prevent the card key and have dust reduction capability.

Another object of the present invention provides a kind of keyboard that can prevent the card key and have dust reduction capability.

To achieve these goals, the invention provides a kind of keyboard, comprise keycap and contact block, described keycap comprises the keycap lid, keycap sidewall and key cap base, described key cap base is covered the relative both sides that are connected to described keycap sidewall with described keycap, described key cap base middle part offers a through hole, described contact block is connected in described keycap and covers a side and be positioned at described keycap lid and the cavity of described keycap sidewall formation, described contact block stretches out described through hole, described key cap base lateral wall slopes inwardly along the malleation direction of described keyboard, and the angle of the malleation direction of the lateral wall of described key cap base and described keyboard is the twice of the peak excursion angle of button.When from this keys of keyboard side pressure, distance between the sidewall of the key cap base of perk end and the keyboard liner plate can not be minimizing trend along with the decline of keyboard, thereby avoided the card key problem that occurs because the key cap base sidewall contacts with this keyboard liner plate, ringing keyboard comes more smooth, more comfortable.

In an embodiment of key board of the present invention, the madial wall of described key cap base is outward-dipping along the malleation direction of described keyboard.When pressing this keyboard, this incline structure can prevent that dust accretions is on the shell fragment below the keyboard to the lead both sides of this cavity of dust.

Preferably, the angle of the malleation direction of the madial wall of described key cap base and described keyboard is the twice of the peak excursion angle of button.

In another embodiment of key board of the present invention, the junction of at least two adjacent faces of described key cap base is an arc.This arc can further play the guiding role to the dust that falls.

Preferable, the radius of described arc is less than 0.5mm.

The present invention also provides a kind of keyboard, comprises keyboard body and a plurality of foregoing keyboard, and described keyboard body comprises key panel and keyboard liner plate, and described keyboard is located between described key panel and the described keyboard liner plate.

In an embodiment of keyboard of the present invention, the described keyboard liner plate sidewall relative with the keycap sidewall of described keyboard is along the malleation direction of described keyboard, tilt to the direction away from the keyboard corresponding with it, thereby form a pattern draft, make the spacing of this keyboard liner plate and this keyboard be subjected at this keyboard to show a rising trend along with the decline of height under the situation of side pressure, thereby avoid this keyboard to be stuck in problem in this keyboard liner plate better.

By following description also in conjunction with the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used to explain embodiments of the invention.

Description of drawings

Fig. 1 is the perspective exploded view of prior art keyboard.

Fig. 2 a is the partial sectional view after keyboard assembles among Fig. 1, the state when having shown its keyboard side pressure.

Fig. 2 b is the partial sectional view after keyboard assembles among Fig. 1, the state when having shown its keyboard malleation.

Fig. 3 a is the perspective exploded view of an embodiment of keyboard of the present invention.

Fig. 3 b is the schematic perspective view after the assembling of keyboard shown in Fig. 3 a.

Fig. 4 is the partial sectional view of keyboard shown in Fig. 3 a in working order the time.

Fig. 5 is the structural representation of the keyboard of keyboard shown in Figure 4.

Embodiment

Fig. 3 a and Fig. 3 b have shown an embodiment of keyboard of the present invention, shown in Fig. 3 a, this keyboard 100 compriseskey panel 1, a plurality ofkeyboard 4,keyboard liner plate 2, water-proof silica-gel 3, binding layer 5, spacing layer 6, a plurality of shell fragment 8, circuit board 7 and keyboard board 9.Thiskey panel 1,keyboard liner plate 2, water-proof silica-gel 3, binding layer 5, spacing layer 6, circuit board 7 and keyboard board 9 is superimposed successively fits together, thiskeyboard 4 is fixedly arranged between thiskey panel 1 and thiskeyboard liner plate 2, and this shell fragment 8 is fixedly arranged between this binding layer 5 and this spacing layer 6.

Particularly, thiskey panel 1 is provided with plurality of fixed post 12, thiskeyboard liner plate 2, water-proof silica-gel 3, binding layer 5, spacing layer 6, circuit board 7 and 9 pairs of keyboard boards should have a plurality of installing holes 101 in fixed leg 12 places, thereby this fixed leg 12 passes this installing hole 101 thiskey panel 1,keyboard liner plate 2, water-proof silica-gel 3, binding layer 5, spacing layer 6, circuit board 7 and keyboard board 9 is assembled, and makes it to be fixed together by nut 102 at last.

Thiskey panel 1 has a plurality of first by keyway 11, thiskeyboard 4 be embedded correspondence first by keyway 11 in, thesekeyboard liner plate 2corresponding keyboards 4 places have a plurality of second by keyway 21, forkeyboard 4 provides certain activity space.

Particularly, as shown in Figure 5, thiskeyboard 4 compriseskeycap 41 andcontact block 42, thiskeycap 41 compriseskeycap lid 411,keycap sidewall 412 andkey cap base 413, thiskey cap base 413 and thiskeycap lid 411 are connected to the relative both sides of describedkeycap sidewall 412, and thesekey cap base 413 middle parts offer a through hole 413a.Thiscontact block 42 is connected in thecavity 43 that described keycap covers 411 1 sides and is positioned at thiskeycap lid 411 and thiskeycap sidewall 412 formation, and stretches out this throughhole 413a.

Thiskey cap base 413 is with respect to thesekeycap sidewall 412 evaginations, thiskeyboard 4 is stuck between thiskey panel 1 and thekeyboard liner plate 2 and is not easy to come off, and hereinafter, its one side relative withkey panel 1 is called as stationary plane C.

The lateral wall of thiskey cap base 413 slopes inwardly along the malleation direction of thiskeyboard 4, promptly tilts towards cavity 43.Particularly, the malleation direction along thiskeyboard 4 slopes inwardly thesekey cap base 413 lateral walls from this stationary plane C edge, forms the first inclination angle X.In conjunction with reference to Fig. 4, whenkeyboard 4 during by side pressure, direction shown in arrow P,keyboard 4 actual pushes direction and its malleation direction forms a deviation angle, and its maximum is W (peak excursion angle).Preferably, the angle of this first inclination angle X is the twice of this peak excursion angle W.As shown in Figure 4, whenkeyboard 4 during by side pressure, can not successively decrease along with the decline ofkeyboard 4 between the lateral wall of thekey cap base 413 of perk end and thiskeyboard liner plate 2 apart from d4, thus the card key problem that occurs becausekey cap base 413 sidewalls contact with thiskeyboard liner plate 2 avoided.

In another embodiment of the present invention, as shown in Figure 4, the relative sidewall of thekeycap sidewall 412 of thiskeyboard liner plate 2 and thiskeyboard 4 is along the malleation direction of thiskeyboard 4, tilt to the direction away from the keyboard corresponding with it 4, thereby form a pattern draft Z, make the spacing d4 of thiskeyboard liner plate 2 and thiskeyboard 4 be subjected at thiskeyboard 4 that the decline along with height still shows a rising trend under the situation of side pressure, thereby avoid thiskeyboard 4 to be stuck in situation in thiskeyboard liner plate 2 better.

The madial wall of thiskey cap base 413 is outward-dipping along the malleation direction of thiskeyboard 4, promptly towards the cavity outer incline, forms the second inclination angle Y.Preferable, the angle of this second inclination angle Y can be the twice of this peak excursion angle W, thereby better the lead both sides of thiscavity 43 of the dust that falls, avoids dust accretions on this shell fragment 8.

In the present embodiment, the junction of this stationary plane C and thiskey cap base 413 lateral walls is an arc, form the first fillet R1, when this stationary plane C is fallen in the space of dust between thiskeyboard 4 and thiskey panel 1, this first fillet R1 plays the dirt effect of leading, the dust that falls is led on this water-proof silica-gel 3, avoided dust accretions on this stationary plane C, and then avoid dust to fill the space between thiskeyboard 4 and thiskey panel 1 and phenomenon such as the card key that occurs and button be malfunctioning.Preferable, the radius of this arc is less than 0.5mm.

The junction of thesekey cap base 413 lateral walls andkeycap 41 bottom surfaces also can be arc, forms the second fillet R2, and thesekey cap base 413 madial walls and junction,keycap 41 bottom surface are arc also, form the 3rd fillet R3.In the present embodiment, this second fillet R2 equates with the 3rd fillet R3 radius, and less than 0.5mm.This second fillet R2 and the 3rd fillet R3 lead the dust that falls in thiscavity 43 better, and the obstruction of the dust that further prevents to know clearly makes button operation more smooth, and is more comfortable.

This spacing layer 6 is two-sided gum film, and its back side sticks on this circuit board 7, and is positive bonding with this binding layer 5.This spacing layer 6 also has a plurality of square grooves (figure does not show), is used to hold corresponding shell fragment 8, and this shell fragment 8 is played position-limiting action.

It should be noted that thiscontact block 42 can be connected with thesekeycap 41 one, also can be fixed together by other modes; Thiskeyboard 4, first can be square by keyway 21 by keyway 11, second, also can be other feasible shape; This first inclination angle X is by the thickness of thiskey panel 1 and thiskeyboard liner plate 2, and the stroke of this shell fragment 8 is determined jointly.

The invention described above embodiment sequence number is not represented the quality of embodiment just to description.Above invention has been described in conjunction with most preferred embodiment, but the present invention is not limited to the embodiment of above announcement, and should contain various modification, equivalent combinations of carrying out according to essence of the present invention.

Claims (7)

1. keyboard, comprise keycap and contact block, described keycap comprises the keycap lid, keycap sidewall and key cap base, described key cap base is covered the relative both sides that are connected to described keycap sidewall with described keycap, described key cap base middle part offers a through hole, described contact block is connected in described keycap and covers a side and be positioned at described keycap lid and the cavity of described keycap sidewall formation, described contact block stretches out described through hole, it is characterized in that: described key cap base lateral wall slopes inwardly along the malleation direction of described keyboard, and the angle of the malleation direction of the lateral wall of described key cap base and described keyboard is the twice of the peak excursion angle of button.

2. keyboard as claimed in claim 1 is characterized in that: the madial wall of described key cap base is outward-dipping along the malleation direction of described keyboard.

3. keyboard as claimed in claim 2 is characterized in that: the angle of the malleation direction of the madial wall of described key cap base and described keyboard is the twice of the peak excursion angle of button.

4. keyboard as claimed in claim 1 is characterized in that: the junction of at least two adjacent faces of described key cap base is an arc.

5. keyboard as claimed in claim 4 is characterized in that: the radius of described arc is less than 0.5mm.

6. keyboard, comprise keyboard body and a plurality of keyboard, described keyboard body comprises key panel and keyboard liner plate, described keyboard is located between described key panel and the described keyboard liner plate, it is characterized in that: described keyboard is as each described keyboard of claim 1-6.

7. keyboard as claimed in claim 6 is characterized in that: the described keyboard liner plate sidewall relative with the keycap sidewall of described keyboard tilts to the opposite direction of the keyboard corresponding with it along the malleation direction of described keyboard.

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