CN2879385Y - New keystoke structure - Google Patents
New keystoke structure Download PDFInfo
- Publication number
- CN2879385Y CN2879385Y CN 200620039327 CN200620039327U CN2879385Y CN 2879385 Y CN2879385 Y CN 2879385Y CN 200620039327 CN200620039327 CN 200620039327 CN 200620039327 U CN200620039327 U CN 200620039327U CN 2879385 Y CN2879385 Y CN 2879385Y
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- China
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- elastic part
- pillar
- circuit board
- printed circuit
- metal clips
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Abstract
The utility model provides a novel keystoke structure, in which a key cap is connected with a first elastical portion connected to a printed circuit board by a support, the first elastical portion covers on a metal spring plate fixed on the printed circuit board, a projecting column is projected downwards under the support, passed through an inserting hole on the first elastical portion, and correspondingly arranged above the metal spring plate. When the key cap is pressed, the metal spring plate is pressed by the projecting column so that the printed circuit board induces a key pressing operation and completes a key resilience operation. The utility model make the keystoke have a better elasticity and provides better handle for an operator. At the same time, a clamping hook of the support is cooperated with a recess portion of a middle frame of the keyboard, thereby the key cap is difficuilt to be desquamated during a fallen test. The utility model has a simple structure, being easy to realize, and has a good elasticity and a good desquamation preventing effect.
Description
Technical field
The utility model content relates to keyboard, particularly the press-key structure of keyboard.
Background technology
At present, on a lot of equipment, all need to use keyboard, for example the keyboard or the cell phone keyboard of computer keyboard, personal digital assistant (PDA).For bigger keyboard, for example computer keyboard or PDA keyboard, in the imperfect situation of the elasticity that exists button in varying degrees, especially use after a period of time all the more so, feeling when causing the operator to knock keycap is bad, increase operator's sense tired out indirectly, caused the low of operating efficiency.
And existing keyboard is easy to cause keycap to come off in the test of falling (Drop Test), after in a single day these keycaps come off, if repair without the professional, in use comes off through regular meeting, has also caused certain trouble to the user.
The inventor finds, causes the reason of the problems referred to above, is its structure problem.Common button relies on single rubber (rubber sheet) or metal clips (metal dome), and structure realizes knocking the action of (Click) button, and this kind structure is no problem for micro press-key, can realize hammer action better.But, then there is the problem of above-mentioned first aspect for bigger button.
Can have gained some understanding to the press-key structure of single use rubber with reference to figure 1, Fig. 2.Under this kind structure, with keycap according to certain fixed-site on the block rubber of projection, and the rubber of these block rubbers and a monoblock links together, and then this monoblock rubber is fixed on printed circuit board (PCB) (PCB, Printed Circuit Board) on, realizes the structure of button by this simple assembling.In said structure, block rubber is corresponding with the position relation of keycap.In fact, this structure says exactly fully by rubber, is that the block rubber of keycap correspondence supports keycap and finishes the rebound of keycap.
Can have gained some understanding to the press-key structure that only uses metal clips with reference to figure 3, Fig. 4.Under this kind structure, at first that keycap and block rubber is bonding, same, these block rubbers form a monoblock rubber again, and the position of the above-mentioned keycap of block rubber relation is also corresponding.Then, again with the monoblock rubber adhesion to printed circuit board (PCB).But be with different shown in Fig. 1, above-mentioned rubber in this programme is not to be directly bonded on the printed circuit board (PCB), also be provided with metal clips on this printed circuit board (PCB), the position relation of these metal clipss is corresponding with the position relation of keycap, the block rubber that is the below of each keycap and a projection is bonding, the block rubber below is bonding with the metal clips of a projection, and metal clips is bonding with printed circuit board (PCB) again.Different is that described metal clips is separately independently, does not form an integral body with block rubber.
In said structure, be actually the rebound that relies on metal clips to support corresponding keycap and finish keycap, thereby realize the keyboard hammer action, and described block rubber supplemental support keycap does not only play rebound effect.
Even above-mentioned two kinds of textural associations are got up, also there is certain problem, be that such structure is too complicated first, second be still to be difficult to address the above problem.
The utility model content
For this reason, the purpose of this utility model is to provide a kind of novel press-key structure, so that the elasticity of button is better, also can make keycap be not easy to come off in the test of falling simultaneously.
A kind of novel press-key structure that the utility model provides comprises keycap, first elastic part, metal clips, pillar.This press-key structure and printed circuit board (PCB) are used, and are arranged in the keyboard center, and this keyboard center belongs to the stationary housing of keyboard, and specifically, above-mentioned pillar places in the keyboard center and with the keyboard center has the gap.
A kind of novel press-key structure that the utility model provides is characterised in that the upper end of described pillar connects the lower surface of described keycap, and the lower end of pillar contacts with the top of described first elastic part;
The lower limb of described first elastic part is fixedlyed connected with printed circuit board (PCB);
Described first elastic part is a hood configuration, and it covers at the top that is fixed on the metal clips on the printed circuit board (PCB), and its top has a jack;
Described pillar convexes with one downwards and passes described jack and the corresponding projection of being located at described metal clips top, and the center line of described projection, metal clips point-blank.
Above-mentioned metal clips is the arch cambered surface.
Above-mentioned first elastic part is the semi-round ball cone shape.
When keycap was not pressed, above-mentioned projection did not contact with described metal clips, and when keycap was pressed, the contact of the bottom of described projection was also oppressed described metal clips.
The top of above-mentioned first elastic part also is provided with second elastic part of a hollow, and the first half of described pillar is solid, the latter half then is a hollow structure, these hollow structures and the corresponding coupling of described second elastic part, and described second elastic part places in the hollow structure of above-mentioned pillar and have the gap with the inner surface of pillar, and the projection of described pillar inserts in the jack of described first elastic part after passing described second elastic part.
Above-mentioned first elastic part and second elastic part are all made by elastomeric material.Above-mentioned first elastic part and second elastic part are made by same elastomeric material, and above-mentioned first elastic part also can be made by different elastomeric materials with second elastic part.
The above-mentioned elastomeric material of making first elastic part and second elastic part is a rubber.Above-mentioned elastomeric material also can be other elastic materials, for example rubber-like plasthetics.
In said structure, when pressing keycap, keycap drives the downward pressure of pillar generation makes described second elastic part and first elastic part shrink, and the projection that makes keycap drive on pillar and the pillar moves down, above-mentioned projection contacts above-mentioned metal clips and it is produced pressure, metal clips is also tackled above-mentioned printed circuit board (PCB) mutually and is produced pressure, and this pressure of printed circuit board (PCB) perception also produces push button signalling.After the external force of pressing keycap disappeared, the elasticity of second elastic part and first elastic part made both restore to the original state, and drove pillar and keycap moves up, and button restores to the original state.Therefore, finish actuation of keys and button rebound jointly by described press-key structure.
Aforesaid structure, the lower end of described pillar also is provided with trip, described keyboard center is provided with a depressed part, described trip and described depressed part fasten, and the inner surface of the outer surface of pillar and keyboard center has the gap, and the gap sum between these gaps and the above-mentioned pillar inner surface and second elastic part is less than the width of trip.
The outer surface of keyboard center is not stretched out in the outer end of above-mentioned trip.
The side of above-mentioned trip is one trapezoidal.Above-mentioned trip also can be a cube.
The lower surface of above-mentioned trip and the lower surface of pillar are on same plane.The lower surface of above-mentioned trip also can be higher than the lower surface of pillar.
The position of the position of the upper surface of above-mentioned trip and above-mentioned keyboard center adapts.
Because there are the gap in the inner surface of described trip and the outer surface of described second elastic part, and also there is the gap in the inner surface of the outer surface of trip and described keyboard center, and these gaps make pillar move up and down the friction that can not be subjected to second elastic part and keyboard center.Simultaneously, because above-mentioned two gap sums are less than the width of trip, therefore, even trip can not come off when trip is subjected to horizontal extruding force, thereby make whole pillar and the keycap that is connected with pillar can not come off from the said fixing housing yet from the depressed part of above-mentioned keyboard center.
In a complete keyboard, there be keycap, pillar, first elastic part, the metal clips of a plurality of correspondences, and form keyboard according to the novel press-key structure that the utility model provides.Wherein the area of printed circuit board (PCB) is by the area of designer according to what and each keycap of button, and the designer is to the design of the appearance design of whole keyboard and determine, because it there is no direct relation with the performance of press-key structure provided by the utility model, so does not encyclopaedize at this.
By above-mentioned utility model content as seen, compare with the press-key structure of existing keyboard, press-key structure provided by the utility model is owing to adopt metal clips to combine with rubber-like first elastic part and second elastic part, make the sensation of button stronger, make it can realize knocking the action of keyboard with comparalive ease, no matter and be little button or big button; And this kind structure can be owing to the aging difficulty day by day that causes hammer action of elastomeric material.This keyboard structure can bring to the operator and better knock sensation, thereby make its work lighter.
Moreover,, also make button provided by the utility model in the test of falling, be not easy to come off by the design of above-mentioned button trip, also more firm in the use of reality, the not puzzlement that can bring original button to come off to the operator.
Description of drawings
Fig. 1 is to use rubber to realize the structure chart of the keyboard of key tap action.
Fig. 2 is block rubber and the rubber structure figure in the reflection structure shown in Figure 1.
Fig. 3 is to use metal clips to realize the structure chart of the keyboard of key tap action.
Fig. 4 is the explosive view of Fig. 3.
Fig. 5 is the structure chart that keycap is connected with first elastic part among the embodiment one of the present utility model.
Fig. 6 is that keycap is connected to explosive view behind the printed circuit board (PCB) among the embodiment one of the present utility model.
Fig. 7 be installed among the embodiment one of the present utility model on the keyboard center before the structure chart of button.
Fig. 8 be installed among the embodiment one of the present utility model on the keyboard center after the structure chart of button.
Label declaration
1, the keycap of different shape
11 keycaps, 12 keycaps, 13 keycaps
2, printed circuit board (PCB)
3, rubber
31 block rubbers
4, metal clips
5, pillar
51 trips, 52 projections
6, keyboard center
61 depressed parts
7, first elastic part
72 hollow parts, 71 tops
73 lower limbs, 74 jacks
8, second elastic part
Embodiment
With reference to figure 1, it has described the structure chart that uses rubber to realize the keyboard of key tap action.Keycap 11 is fixed on the block rubber 31 of projection according to certain position relation, and block rubber 31 links together with monoblock rubber 3 again.Structure shown in Figure 1 also will be fixed on the printed circuit board (PCB), but the printed circuit board (PCB) that do not draw among Fig. 1.
Fig. 2 described block rubber and the rubber structure figure in the structure shown in Figure 1, just removed the structure after the keycap 11, and it has shown the relation of block rubber 31 and rubber 3 among Fig. 1.
Fig. 3 has described the structure of using metal clips to realize the keyboard of key tap action.At first that keycap 12 and block rubber is bonding, block rubber is connected with a monoblock rubber 3 again.Again monoblock rubber 3 is adhered on the printed circuit board (PCB) 2.
Fig. 4 is the explosive view of Fig. 3, and it artificially with keycap and rubber translation, thereby makes the metal clips that is hidden under the rubber reveal in order more clearly to describe the structural relation of parts such as keycap and rubber, and Fig. 4 is the supplementary notes of Fig. 3.With reference to figure 4, as seen, above-mentioned rubber 3 is not to be directly bonded on the printed circuit board (PCB), also be provided with metal clips 4 on this printed circuit board (PCB), these metal clipss 4 are corresponding with the position relation of keycap 12, the block rubber that is the below of each keycap 12 and a projection is bonding, and the block rubber below is bonding with the metal clips 4 of a projection, and metal clips is bonding with printed circuit board (PCB) 2 again.Wherein, above-mentioned metal clips 4 is separately independently.
Fig. 5 has described the structure that keycap is connected with first elastic part among the embodiment one of the present utility model.The upper end of pillar 5 is connected with keycap 13 lower surfaces, and the lower end of pillar 5 is connected with first elastic part 7.And pillar 5 is provided with a trip 51.In the present embodiment, the side of trip 51 is trapezoidal, and in other embodiments, trip 51 also can be other shapes, for example a cube.In the present embodiment, the lower limb 73 of first elastic part 7 is connected with printed circuit board (PCB), but printed circuit board (PCB) does not draw in this figure, can specifically describe this part-structure with reference to figure 6.In the present embodiment, described first elastic part 7 is the semi-round ball cone shape of hollow, and in other embodiments, first elastic part 7 also can be other shapes, and is for example bowl-shape.In other embodiments, also may not have trip 51, at this moment, the action of key tap still can be finished, but this structure can not prevent that button from coming off from keyboard.
Fig. 6 is that keycap is connected to explosive view behind the printed circuit board (PCB) among the embodiment one of the present utility model.With reference to figure 6, the upper end of pillar 5 is connected with keycap 13, and the lower end of pillar 5 is connected with first elastic part 7.With reference to figure 6, in the present embodiment, can see the top 71 of first elastic part 7, and with reference to figure 5, in normal button assembly drawing, this top 71 can't see that it is blocked by pillar 5.
With reference to figure 6, below first elastic part 7, also be provided with a metal clips.In the present embodiment, after button is connected to printed circuit board (PCB), be sequentially with keycap 13, pillar 5, first elastic part 7, metal clips 4, printed circuit board (PCB) 2 from the top down.Equally, after normal mounting, described metal clips 4 also is sightless, and it is blocked by first elastic part 7, and the explosive view of Fig. 6 is to draw for the reader understands structure of the present utility model better.
In the present embodiment, above-mentioned metal clips 4 is arch cambered surfaces, and metal clips 4 does not contact with the lower limb 73 of first elastic part 7, and the center line of the metal clips 4 and first elastic part 7 is on same straight line.And in other embodiments, metal clips 4 also can be other arcuate structures, and also can contact with first elastic part 7.
Fig. 7 has described and has been installed to the keyboard center structure of button before among the embodiment one of the present utility model.With reference to figure 7, the first half of pillar 5 is solid, and the latter half then is a hollow structure, and described second elastic part 8 stretches into the hollow part of pillar 5.Exist a small gap to make pillar 5 when moving up and down, not rub mutually between pillar 5 and above-mentioned second elastic part 8 with second elastic part 8.
With reference to figure 7, the lower end of pillar 5 is provided with a projection 52, and this projection 52 stretches in the hollow part 72 of first elastic part 7 after passing first elastic part 7 and passing the jack 74 that has on the top 71 of described first elastic part 7.Because in the present embodiment, above-mentioned first elastic part also is provided with second elastic part 8 of a hollow, above-mentioned projection 52 is to pass this second elastic part 8 earlier, and then passes jack 74, but this structure is in the inside of second elastic part 8, so can't show in this figure.After normal mounting, above-mentioned projection 52 does not contact with the upper surface of metal clips 4, but when the user presses keycap 13, keycap 13 moves down to drive pillar 5 and drive projection 52 and moves down, thereby make projection touch the upper surface of described metal clips 4 and it is produced pressure, finally make printed circuit board (PCB) sense the pressure of metal clips 4 and finish the one-touch action.
In the present embodiment, described metal clips 4 is rounded, and it is a concentric circles in projection on the printed circuit board (PCB) 2 and described first projection of elastic part 7 on printed circuit board (PCB) 2.
In the present embodiment, the central axis of the central axis of described projection 52 and described metal clips 4 coincides.
It is the structure chart that is installed to button behind the keyboard center among the embodiment one of the present utility model that Fig. 8 has described.Different with Fig. 7 is specifically to have described the structural relation of parts such as keyboard center and pillar among Fig. 8.With reference to figure 8, pillar 5 places the inside of keyboard center 6, and keyboard center 6 is provided with a depressed part 61.Above-mentioned trip 51 is interlocked with depressed part 61.In the present embodiment, the upper surface of trip 51 contacts with depressed part 61.In the present embodiment, trip 51 lower surface and the lower surface of pillar 5 on same plane.
In the present embodiment, there is a gap in the outer surface of the inner surface of pillar 5 and second elastic part 8, there is a gap in the inner surface of the outer surface of pillar 5 and keyboard center 6, and these gaps make pillar 5 move up and down the Shi Buhui and second elastic part 8 and keyboard center 6 and rub.Simultaneously, because above-mentioned two gap sums are less than the width of trip 51, therefore, even trip 51 can not come off when trip 51 was subjected to horizontal extruding force, thereby make whole pillar 5 and the keycap 13 that is connected with pillar 5 can not come off from the said fixing housing yet from the depressed part 61 of above-mentioned keyboard center 6.
In the foregoing description one, described first elastic part 7 and second elastic part 8 are all made by elastomeric material, and this elastomeric material all is a rubber.But in other embodiments, making first elastic part 7 can be different with the elastomeric material of second elastic part 8, and for example first elastic part 7 is made by plasthetics, and second elastic part 8 is then made by rubber.
Although the utility model is illustrated with aforesaid preferred embodiment, but the foregoing description is not to be used for limiting the utility model, any technical staff that this field is familiar with, enlightenment according to design philosophy of the present utility model, concrete summary of the invention and embodiment, should make various changes and adjustment, and by these changes with adjust resulting new content and should be contained by the utility model content.
Claims (9)
1. novel press-key structure, be located in the keyboard center, and match with printed circuit board (PCB), comprise keycap, first elastic part, metal clips, pillar, pillar places in the center and with center has the gap, it is characterized in that the upper end of described pillar connects the lower surface of described keycap, the lower end of pillar contacts with the top of described first elastic part;
The lower limb of described first elastic part is fixedlyed connected with printed circuit board (PCB);
Described first elastic part is a hood configuration, and it covers at the top that is fixed on the metal clips on the printed circuit board (PCB), and its top has a jack;
Described pillar convexes with one downwards and passes described jack and be located at the projection of described metal clips top, and the center line of described projection, metal clips point-blank.
2. a kind of novel press-key structure as claimed in claim 1 is characterized in that described metal clips is the arch cambered surface.
3. a kind of novel press-key structure as claimed in claim 1, it is characterized in that, the top of described first elastic part upwards also is provided with second elastic part of a hollow, the bottom of described pillar is a hollow structure, this hollow structure and the corresponding coupling of described second elastic part, described second elastic part places in this hollow structure and has the gap with the inner surface of pillar, and the projection of described pillar inserts in the jack of described first elastic part after passing described second elastic part.
4. as claim 1 or 3 described a kind of novel press-key structures, it is characterized in that described first elastic part and second elastic part are made by elastomeric material.
5. a kind of novel press-key structure as claimed in claim 4 is characterized in that described elastomeric material is a rubber.
6. as claim 1 or 3 described a kind of novel press-key structures, it is characterized in that described first elastic part is the semi-round ball cone shape.
7. as claim 1 or 3 described a kind of novel press-key structures, it is characterized in that, the lower end of described pillar also is provided with trip, described keyboard center is provided with the depressed part that is complementary with described trip, described trip and described depressed part fasten, and the gap sum between the gap between described pillar and the described keyboard center and described pillar and described second elastic part is less than the width of described trip.
8. a kind of novel press-key structure as claimed in claim 5 is characterized in that the lower surface of described trip and the lower surface of described pillar are on same plane.
9. a kind of novel press-key structure as claimed in claim 5 is characterized in that the lower surface of described trip is higher than the lower surface of described pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039327 CN2879385Y (en) | 2006-01-27 | 2006-01-27 | New keystoke structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039327 CN2879385Y (en) | 2006-01-27 | 2006-01-27 | New keystoke structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2879385Y true CN2879385Y (en) | 2007-03-14 |
Family
ID=37861805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039327 Expired - Fee Related CN2879385Y (en) | 2006-01-27 | 2006-01-27 | New keystoke structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2879385Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635748B (en) * | 2008-07-24 | 2012-07-18 | 富士康(昆山)电脑接插件有限公司 | Support frame |
-
2006
- 2006-01-27 CN CN 200620039327 patent/CN2879385Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635748B (en) * | 2008-07-24 | 2012-07-18 | 富士康(昆山)电脑接插件有限公司 | Support frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 Termination date: 20120127 |