CN201751967U - Metal dome-shaped switch for keyboard - Google Patents
Metal dome-shaped switch for keyboard Download PDFInfo
- Publication number
- CN201751967U CN201751967U CN2010201939349U CN201020193934U CN201751967U CN 201751967 U CN201751967 U CN 201751967U CN 2010201939349 U CN2010201939349 U CN 2010201939349U CN 201020193934 U CN201020193934 U CN 201020193934U CN 201751967 U CN201751967 U CN 201751967U
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- Prior art keywords
- pressure
- dome shape
- metal dome
- apex
- keyboard
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Abstract
The utility model relates to a metal dome-shaped switch for a keyboard, comprising a dome-shaped metal plate provided with a peripheral part and a vertex part, wherein at least one inner part of the peripheral part is contacted with a connecting terminal, the vertex part can be depressed downwards to generate elastic deformation, thus being connected with or disconnected from the connecting terminal to realize the switching-on or switching-off function; a pressure concentration part is formed at the tail end of a connection part by extending the peripheral part of the metal plate, positioned at the upper side of the vertex part of the metal plate, and used for exerting pressure on the vertex part of the metal plate; the pressure concentration part is provided with a protrusion part that protrudes downwards and is used for exerting pressure on the center of the vertex part; and the protrusion part of the pressure concentration part is formed in a semisphere shape so as to lead the protruded vertex of the protrusion part and the centre of the vertex part to be aligned. For the metal dome-shaped switch for the keyboard, even if a user can not accurately press the center of a key, the key can also generate elastic deformation of normal depression by the protrusion part of the dome-shaped metal plate, therefore, the misoperation due to bad contact can be avoided, and good clicking handfeeling can be always kept.
Description
Technical field
The utility model relates to a kind of keyboard metal dome shape switch, in more detail, relate to a kind of keyboard metal dome shape switch, wherein, even without accurately pressing button centre position, the apex of dome shape metallic plate also can produce normal strain, realizes correct switching function, and remains good click feel when operation push-button.
Background technology
In general, be used for mobile phone etc. and carry as depicted in figs. 1 and 2, comprising: be arranged in upper body 1 and the lower case 2, be formed with the printed circuit board (PCB) 3 of splicing ear 3a above with the keyboard of terminating machine; Be arranged on the described printed circuit board (PCB) 3, by optionally being connected with splicing ear 3a or disconnecting, thereby realize a plurality of metal dome shape switches 4 of switching function; Be positioned on the described printed circuit board (PCB) 3, be used to be provided with the dividing plate 5 of metal dome shape switch 4; On dividing plate 5, be used for fixing the adhesive tape 6 of metal dome shape switch 4; Be positioned at the top of described metal dome shape switch 4, can pass through the light guide plate 7 of lamp (not shown) divergent rays; Be arranged on the top shell fragment 8 on the described light guide plate 7; And be arranged on described upper body 1, and metal dome shape switch 4 is exerted pressure, make it produce the button 9 of strain.
Thereby, shown in Fig. 3 a, when the user push button 9 decontrol again operation the time, metal dome shape switch 4 apex that are made of the metallic plate of dome shape produce the strain of depression, disconnect the realization switching function thereby contact with splicing ear 3a again.
In the prior art, the bottom surface of the top shell fragment 8 at metal dome shape switch 4 places is formed with pressure and concentrates protuberance 8a, this pressure concentrates protuberance 8a to make to push button 9 the pressure that operation produced to focus on the apex of metal dome shape switch 4, and to exerting pressure in fact, thereby make the metal dome shape switch 4 normal strains that produce, the correct switching function of realizing also can improve and click feel with the operation sound of " coffee of rattling away " when carrying out the pressing operation of button 9 simultaneously.
But, for existing keyboard, as shown in Figure 2, has only the user when direction of arrow a pushes button 9 centre portion exactly, the pressure of top shell fragment 8 concentrates protuberance 8a along direction of arrow a ' apex of metal dome shape switch 4 to be exerted pressure, thereby shown in Fig. 3 a, makes apex produce strain to lower recess, realize normal switching function, and keep good click feel.If because the user does not note, by the peripheral position to the centre portion that breaks away from button 9, the pressure of top shell fragment 8 concentrates protuberance 8a to exert pressure to breaking away from metal dome shape switch 4 centre positions obliquely along the direction of arrow (b ' or c ') along the direction of arrow (b or c).
At this moment, shown in Fig. 3 b, because the apex of metal dome shape switch 4 is the curved surface of the dome shape of heaving, the position of pressure effect will produce bigger strain, not have a reverse side of pressure effect then to produce less strain.
Therefore, will be when the apex of metal dome shape switch 4 produces strain to lopsidedness, the misoperation that can not contact with splicing ear 3a might appear, and must push button 9 once more this moment, bothers very much.Promptly enable to contact, finish switching function, also obviously reduced the click feel with splicing ear 3a.
And, if any part has mobile in top shell fragment 8 or the metal dome shape switch 4, make pressure concentrate protuberance 8a to break away from the apex of metal dome shape switch 4 a little, even exactly by centre portion to button 9, can not make the apex of metal dome shape switch 4 normally produce strain, reduce switching function and clicked feel.For this reason, in the past need top shell fragment 8 or metal dome shape switch 4 is fixing firmly, and it can not be moved.This not only makes the assembly working of keyboard become complicated, but also has increased assembling procedure, thereby packaging efficiency and production efficiency are descended.
The utility model content
For addressing the above problem the utility model is proposed, its objective is provides a kind of keyboard metal dome shape switch, even the user fails accurately by to button centre portion the time, can guarantee that also the central part of metal dome shape switch normally produces the strain of depression, thereby avoid the phenomenon of loose contact, and remain good click feel.Simultaneously during any side generation micro displacement in button and the metal dome shape switch, key press also can correctly be communicated to the apex of dome shape metallic plate, thereby realizes normal switching function and keep good click feel.
For reaching described purpose, metal dome shape switch of the present utility model comprises the dome shape metallic plate with periphery and apex, at least having a part in the described periphery contacts with splicing ear, described apex can be to lower recess producing strain, thereby contact with splicing ear or disconnect and realize on-off action; The end that prolongs the connecting portion that forms at described metallic plate periphery is formed with the concentrated portion of pressure, and this pressure concentrates portion to be positioned at the upside of described metallic plate apex, is used for exerting pressure to the apex of described metallic plate.
And keyboard of the present utility model concentrates portion to have the protuberance that downward protrusion forms with the described pressure of metal dome shape switch, and described protuberance is used for exerting pressure to the centre of described apex.
And keyboard of the present utility model is concentrated the protuberance of portion to protrude with semi-spherical shape with the described pressure of metal dome shape switch and is formed, and aligns with described apex centre in the protrusion summit of described protuberance.
And, keyboard of the present utility model at described connecting portion opposite side, is formed with second connecting portion along the prolongation of metallic plate periphery with metal dome shape switch, the end of this second connecting portion is formed with second pressure and concentrates portion, and this second pressure is concentrated portion to be positioned at described pressure and concentrated portion's upside.
The beneficial effects of the utility model are as follows.
Keyboard of the present utility model metal dome shape switch with above-mentioned characteristic structure, because pressure concentrates the metal plate shape of portion and metal dome shape switch to become one, and pressure concentrates portion to be positioned at the upside of described apex, so even the user fails accurately by arriving button centre portion, can guarantee that also pressing force makes the apex of metal dome shape switch normally produce the strain of depression by the concentrated portion of pressure, thereby make the switching function of metal dome shape switch not have misoperation, all the time normal operation, eliminate the troublesome operation of pushing again, when carrying out the pressing operation of button, keep good click feel always.
Simultaneously, according to the utility model, even metal dome shape switch or button generation micro displacement or assembly error cause normally the pushing direction of button and can't align with the apex of metal dome shape switch, also can be owing to the concentrated portion of pressure is arranged on the metallic plate of metal dome shape switch integratedly, so total energy exerts pressure for the apex of metallic plate, make its normal depression that strain take place.And described pressure is concentrated portion to protrude with semi-spherical shape and is formed, and the centre of this protrusion summit and apex aligns, and this makes the correct metallic plate apex of giving of total energy exert pressure, and guarantees not have the switching manipulation of misoperation, keeps good click feel.
Description of drawings
Fig. 1 is the major part plane graph of expression conventional mobile phone with keyboard;
Fig. 2 is that the structure of major part of expression conventional mobile phone keyboard is along the profile of the line A-A of Fig. 1;
Fig. 3 a and Fig. 3 b are the amplification profiles of metal dome shape switch working state in the expression conventional mobile phone keyboard;
Fig. 4 is the schematic diagram of keyboard of the present utility model with metal dome shape switch;
Fig. 5 is the user mode profile of keyboard of the present utility model with metal dome shape switch;
Fig. 6 and Fig. 7 are schematic diagram and the profile of the keyboard of expression another execution mode of the present utility model with metal dome shape switch;
Fig. 8 a and Fig. 8 b are plane graph and the front elevation of the keyboard of expression another execution mode of the present utility model with metal dome shape switch;
Fig. 9 is plane graph and the front elevation of the keyboard of expression another execution mode of the present utility model with metal dome shape switch.
The Reference numeral of critical piece
20: metal dome shape switch 21: metallic plate
21a: periphery 21b: apex
22: pressure is concentrated the 22a of portion: protuberance
23: 24: the second pressure of connecting portion is concentrated portion
25: the second connecting portions
Embodiment
Below in conjunction with accompanying drawing, preferred implementation of the present utility model is described in detail.
Fig. 4 is the schematic diagram of keyboard of the present utility model with metal dome shape switch, Fig. 5 is to use the state sectional view, as shown in the figure, metal dome shape switch 20 of the present utility model comprises the metallic plate 21 of dome shape, this metallic plate 21 has periphery 21a and apex 21b, at least having a part among the periphery 21a of described metallic plate 21 contacts with the splicing ear 13b of the both sides that are arranged on printed circuit board (PCB) 13, when pressing force is done the time spent, the apex 21b of metallic plate 21 can produce strain to lower recess, thereby contact with the splicing ear 13a of the central authorities that are arranged on printed circuit board (PCB) 13 or isolate, to realize the switching function of closure or disconnection.
Be provided with pressure at the apex 21b of described metallic plate 21 and concentrate portion 22, be used to guide the pressing force of button (not having diagram) to focus on apex 21b, described pressure concentrates portion 22 to be formed on the end of connecting portion 23, and the periphery 21a bending that this connecting portion 23 is described metallic plates 21 prolongs and forms.
Described pressure concentrates portion 22 to comprise the protuberance 22a that downward protrusion forms, making exerts pressure to the centre of described apex 21b becomes easy, described protuberance 22a forms with semi-spherical shape, the protrusion summit P1 of this protuberance 22a and the centre P2 of described apex 21b align, thereby guarantee that the concentrated portion 22 of pressure can correctly be pressed into the centre P2 of apex 21b.
According to the metal dome shape switch 20 of the keyboard with described structure, as shown in Figure 5, when the centre portion of the correct pressing keys of user, pressing force concentrates portion 22 to exert pressure vertically for the pressure that is arranged on metallic plate 21 apex 21b according to direction of arrow a, shown in dotted line, pressure concentrates portion 22 to descend, and makes the apex 21b of the metallic plate 21 generation strain that normally caves in, contact splicing ear 13a realizes switching function, presents good click feel simultaneously.
As user during at pressing keys periphery unintentionally, though pressing force is concentrated portion 22 along the direction of arrow (b or c) tilting action in pressure, but the pressure that at this moment is positioned at the apex 21b of metallic plate 21 concentrate portion 22 also can be normally apicad the 21b of portion exert pressure, make it produce the strain of depression, realization does not have the switching function of misoperation, keeps good click feel.
And, any side generation micro displacement in metal dome shape switch 20 or button, or when causing the apex of button and metal dome shape switch 20 not alignd because of assembly error, even normal pressing operation button, pressing force also can be by the direction of arrow (b or the c) effect of Fig. 5.At this moment because pressure concentrates the metallic plate 21 of portion 22 and metal dome shape switch 20 to form as one, pressure concentrates the apex position of portion 22 and metallic plate 21 to remain unchanged, thereby guarantee that the concentrated portion 22 of pressure always normally exerts pressure to the apex 21b of metallic plate 21, make it produce the strain of depression, avoided to fixedly secure the loaded down with trivial details operation of metal dome shape switch 20 or miscellaneous part, shorten assembly program, reduced the function reduction that assembly error causes.
On the other hand, in the utility model, pressure concentrates portion 22 to be formed with the hemispherical protuberance 22a that downward protrusion forms, this protuberance 22a can effectively focus on pressure the apex 21b of metallic plate 21, the protrusion summit P1 of this protuberance 22a and the centre P2 of apex 21b align, therefore can correctly press the centre P2 of the apex 21b of laminated metal sheet 21, thereby can keep the switching function of metal dome shape switch 20 and click feel with good state.
Fig. 6 and Fig. 7 are another execution modes of the present utility model.On the basis of above-mentioned execution mode, also comprise second connecting portion 25, this second connecting portion 25 forms in the periphery 21a prolongation of described connecting portion 23 opposite sides along described metallic plate 21, these second connecting portion, 25 ends have formed second pressure and have concentrated portion 24, and described second pressure concentrates portion 24 to be positioned at the upside that described pressure is concentrated portion 22.
Owing to concentrate the opposite side of portion 22 to be formed with second connecting portion 25 and the concentrated portion 24 of second pressure symmetrically at connecting portion 23 and pressure, thereby this structure not only can realize the effect of aforementioned embodiments, concentrate the portion 22 and second pressure to concentrate portion 24 can also more stably pressing force be communicated to the apex 21b of metallic plate 21 by pressure simultaneously, thereby make the apex 21b of metallic plate 21 more balancedly produce strain.
Though in the above-described embodiment metallic plate 21 is illustrated as an example for circular metal dome shape switch 20, but, the dome shape metallic plate 31 that the utility model is equally applicable to shown in Fig. 8 a and Fig. 8 b is rectangular metal dome shape switch 30, or dome shape metallic plate 41 as shown in Figure 9 is criss-cross metal dome shape switch 41.
Above-mentioned execution mode only is a preferred implementation of the present utility model, and claim scope of the present utility model is not limited to above-mentioned execution mode.In technology purport of the present utility model and utility model right claimed range, those skilled in the art can carry out multiple variation, change or replacement, and suchlike execution mode all should fall within the claim scope of the present utility model.
Claims (4)
1. a keyboard is with metal dome shape switch, it is characterized in that, this keyboard comprises the dome shape metallic plate with periphery and apex with metal dome shape switch, at least having a part in the described periphery contacts with splicing ear, strain can be to lower recess taking place in described apex, thereby be connected with described splicing ear or disconnect and realize on-off action;
The end that prolongs the connecting portion that forms at the periphery of described metallic plate is formed with pressure and concentrates portion, and this pressure concentrates portion to be positioned at the upside of the apex of described metallic plate, is used for the apex pressurization to described metallic plate.
2. keyboard according to claim 1 is characterized in that with metal dome shape switch described pressure concentrates portion to have the protuberance that downward protrusion forms, and is used for exerting pressure to the centre of described apex.
3. keyboard according to claim 2 is characterized in that with metal dome shape switch described pressure is concentrated the protuberance of portion to protrude with semi-spherical shape and formed, and aligns with the centre of described apex in the protrusion summit of described protuberance.
4. according to any described keyboard metal dome shape switch in the claim 1 to 3, it is characterized in that, prolong along the periphery of metallic plate at the opposite side of described connecting portion and to be formed with second connecting portion, the end of this second connecting portion is formed with second pressure and concentrates portion, and this second pressure concentrates portion to be positioned at the upside that described pressure is concentrated portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201939349U CN201751967U (en) | 2010-05-17 | 2010-05-17 | Metal dome-shaped switch for keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201939349U CN201751967U (en) | 2010-05-17 | 2010-05-17 | Metal dome-shaped switch for keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201751967U true CN201751967U (en) | 2011-02-23 |
Family
ID=43602377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201939349U Expired - Fee Related CN201751967U (en) | 2010-05-17 | 2010-05-17 | Metal dome-shaped switch for keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201751967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743053A (en) * | 2019-01-09 | 2019-05-10 | 科世达（上海）管理有限公司 | A kind of soft-touch control and its control method |
-
2010
- 2010-05-17 CN CN2010201939349U patent/CN201751967U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743053A (en) * | 2019-01-09 | 2019-05-10 | 科世达（上海）管理有限公司 | A kind of soft-touch control and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110223 Termination date: 20180517 |