CN203826263U - Button structure - Google Patents
Button structure Download PDFInfo
- Publication number
- CN203826263U CN203826263U CN201420200468.0U CN201420200468U CN203826263U CN 203826263 U CN203826263 U CN 203826263U CN 201420200468 U CN201420200468 U CN 201420200468U CN 203826263 U CN203826263 U CN 203826263U
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- CN
- China
- Prior art keywords
- press
- key structure
- shell fragment
- base plate
- supports
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- Expired - Lifetime
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Abstract
The utility model discloses a button structure. The button structure comprises a button cap, a base plate and a spring. The base plate is arranged under the button cap. The spring is interposed between the button cap and the base plate, and includes a press part and a plurality of supports. The press part has a circumferential edge. Each support includes a fixed end and a connection end. The fixed end is fixedly arranged, and the connection end is connected to the circumferential edge. When the button cap is pressed and compresses the spring, the press part moves towards the base plate, and the supports are flexibly deformed. As the rigidity of the press part is higher than that of the plurality of supports, the spring is flexibly deformed mainly through the supports, so that the size of force applied to the spring is controlled through configuring the rigidity of the supports, and the problem that the conventional dome button cannot combine the press stroke with proper press force is solved.
Description
Technical field
The utility model is about a kind of press-key structure, espespecially a kind ofly utilizes shell fragment to provide to press the press-key structure of feel.
Background technology
In general keyboard, triggering key switch utilizes keycap extruding plantation rubber to dash forward more or round metal dashes forward to realize.Elastomeric material is compared metal material and is come softly (or coefficient of elasticity is less), want to provide and press the feedback force characteristic that keycap is suitable (that is user is in the process of pressing, the size of the application of force has obvious drop feel), need to increase thickness, the prominent overall volume of plantation rubber also increases, be usually used in using in the press-key structure of staggered form lifting support, this type of press-key structure has larger stroke and the accommodation space pressed conventionally.When plantation rubber is dashed forward for thinner keyboard, due to press-key structure press stroke and available accommodation space is all less, plantation rubber is prominent is difficult to provide gratifying feedback force characteristic.Metal material is compared elastomeric material and is come firmly (or coefficient of elasticity is larger), can in less stroke and configuration space, keep providing larger feedback force, therefore the prominent film keyboard that is usually used in of round metal, but due to the characteristic of round metal lug structure (disk standing shape), the prominent feedback force that is unsuitable for directly providing high-stroke of round metal.In addition, physical dimension difference slightly i.e. foot makes feedback force produce no small variation, the control that unfavorable product is manufactured.Round metal is prominent then also can produce elastic fatigue phenomenon through long-time use, and even structure generation part permanent deformation, reduces available feedback force, all can affect the feel that user uses.Therefore, be at present difficult to take into account the demand of pressing stroke and suitable pressing force characteristic for triggering the prominent part of circle of key switch.
Summary of the invention
In view of the problems of the prior art, one of the purpose of this utility model is to provide a kind of press-key structure, and the shell fragment of its use can be taken into account the demand of pressing stroke and suitable pressing force characteristic.
For achieving the above object, the utility model provides a kind of press-key structure, comprises keycap, base plate and shell fragment, and base plate is arranged under this keycap; Shell fragment is arranged between this keycap and this base plate, and this shell fragment comprises: press section, around having; And a plurality of supports, each this support has stiff end and link, and this stiff end is fixedly installed, and this link is connected in around this; Wherein, the rigidity of this press section is greater than the rigidity of these a plurality of supports, when this keycap is pressed and while pushing this shell fragment, move and these a plurality of rack elasticities distortion towards this base plate this press section.
As optional technical scheme, this stiff end of this support is fixed on this base plate.
As optional technical scheme, this support is rectangle plate.
As optional technical scheme, this support is the plate with crooked outline.
As optional technical scheme, this crooked outline comprises a plurality of bends.
As optional technical scheme, the quantity of these a plurality of supports is more than or equal to 2, and these a plurality of supports around evenly arrange in this.
As optional technical scheme, this shell fragment is shaped by same metal sheet.
As optional technical scheme, this press section thickness identical with this support material and this press section is greater than the thickness of this support.
As optional technical scheme, this press-key structure also comprises switch, and this switch is arranged under this press section, and while wherein pushing this shell fragment when this keycap is pressed, this switch is moved to trigger towards this base plate in this press section.
As optional technical scheme, this shell fragment supports this keycap on this base plate.
Compared to prior art, because the rigidity (or structural rigidity) of this press section of the present utility model is greater than the rigidity of these a plurality of supports, therefore in the time that this shell fragment is pushed by this keycap, the deflection of this shell fragment is determined by the distortion of these a plurality of supports substantially; By this, the large I of strength of pressing this shell fragment obtains control by the rigidity that designs this support, can solve the prominent shape shell fragment of known circle and cannot take into account the predicament of pressing stroke and suitable pressing force.Supplementary notes is in addition, in fact, although also can produce strain when this press section is stressed, but can be by structural design (thickness, the structure outline etc. that comprise this support) so that the rigidity of this press section much larger than the rigidity of these a plurality of supports, make to be extruded in the process of distortion in aforementioned this shell fragment, the deflection of this press section is much smaller than the deflection of these a plurality of supports; Wherein, the difference of aforementioned rigidity can determine by the factor such as product specification, environment for use, not with special ratios or value is poor is limited.Now, upper in engineering application, this press section can be considered rigid body, and these a plurality of supports can be considered elastomer, and strain is provided.
Can describe in detail and appended graphic being further understood by following utility model about advantage of the present utility model and spirit.
Brief description of the drawings
Fig. 1 is according to the profile of the press-key structure of one of the utility model embodiment.
Fig. 2 is the schematic diagram of the shell fragment of press-key structure in Fig. 1.
Fig. 3 is the profile of press-key structure after keycap is pressed in Fig. 1.
Fig. 4 is according to the profile of the shell fragment of another embodiment.
Fig. 5 is according to the profile of the shell fragment of another embodiment.
Fig. 6 is according to the profile of the press-key structure of another embodiment.
Fig. 7 is according to the profile of the press-key structure of another embodiment.
Embodiment
Refer to Fig. 1 and Fig. 2, Fig. 1 is according to the profile of the press-key structure 1 of an embodiment of the present utility model, and Fig. 2 is the schematic diagram of the shell fragment 16 of press-key structure 1.Press-key structure 1 comprises keycap 10, base plate 12, elevating mechanism 14, shell fragment 16 and switch 18.Base plate 12 is arranged under keycap 10, and elevating mechanism 14 is arranged between keycap 10 and base plate 12, and keycap 10 can be moved up and down with respect to base plate 12 by elevating mechanism 14.Shell fragment 16 is arranged between keycap 10 and base plate 12, shell fragment 16 comprises press section 162 and a plurality of support 164, press section 162 is positioned under keycap 10 and has 162a around, each support 164 has stiff end 1642, link 1644 and is connected and fixed the body 1646 of end 1642 and link 1644, stiff end 1642 is fixedly installed with respect to base plate 12, link 1644 is connected in 162a around, and the body 1646 of each support 164 is not all directly connected to each other.Switch 18 is arranged under press section 162 and just press section 162 is arranged on base plate 12.When keycap 10 be pressed and downwards (towards base plate 12) mobile, keycap 10 extrusion elastic 16 make its strain, the press section 162 of the shell fragment 16 of distortion can trigger switch 18; After the external force (being user's pressing force) of pressing keycap 10 disappears, the shell fragment 16 of distortion can because the elastic deformation energy storing before discharges, by keycap 10, upwards (to deviate from base plate 12) counter rolls back and reply original shape.This complete a pressing operation of press-key structure 1.
In the present embodiment, shell fragment 16 has four supports 164 altogether, and press section 162 is symmetrical arranged relatively, but the utility model is not as limit.In practice, shell fragment 16 also can only adopt two or three supports 164, to be symmetrical arranged or evenly to arrange with respect to 162a around with respect to press section 162 equally, wherein, evenly setting can refer to for example in the time having three supports 164, angle between adjacent two these supports 164 is 120 °, be that those support 164 uniform distributions are in the periphery of press section 162, be symmetrical arranged or be evenly provided with and help shell fragment itself and on base plate 12, arrange stably and increase the shell fragment constitutional balance in when distortion, but the utility model is not as limit.It is also feasible using the support 164 of greater number, repeats no more.In addition, in the present embodiment, the rounded profile in press section 162, but the utility model is as limit, for example square, rectangle, polygon or other geometries are also applicable.In addition, in the present embodiment, stiff end 1642 is fixedly welded on base plate 12, but the utility model is not as limit; For example, stiff end 1642 is snapped in to the slot 122 (person as shown in phantom in Figure 1) being formed on base plate 12, also can reach object fixing with respect to base plate 12 stiff end 1642.Supplementary notes, aforementioned stiff end 1642 be fixedly installed non-being limited to respect to the complete motionless set-up mode of base plate 12, in principle, only need be in the process of shell fragment 16 stress deformations, stiff end 1642 must all keep motionless with respect to base plate 12; Therefore, in practice, because can impel stiff end 1642 outwards slide (with respect to press section 162) when shell fragment 16 presses down, therefore stiff end 1642 also can be only for example, is prevented that by being fixedly installed on stop block structure on base plate 12 (aforementioned slot 122 from the vertically extending part of base plate 12) stiff end 1642 from outwards sliding in the whole process of shell fragment 16 stress deformations, can reach the aforementioned requirement that stiff end 1642 is fixedly installed.
See also Fig. 3, it is the profile of press-key structure 1 after keycap 10 is pressed.In according in shell fragment 16 of the present utility model, the rigidity of press section 162 is greater than the rigidity of these a plurality of support 164 entirety, that is easily produce distortion (or producing larger deflection) than press section 162 when stressed in these a plurality of support 164 overall structures, it is subject to the use (press keycap 10) of force direction based on press-key structure 1, be downward haply, via press section 162, to shell fragment 16 application of forces, base plate 12 applies via stiff end 1642 reaction force of shell fragment 16.In practice, can design the rigidity that makes press section 162 much larger than the rigidity of these a plurality of support 164 entirety, while making shell fragment 16 stressed, mainly done work to absorb external force by these a plurality of support 164 strains, the strain of press section 162 is relatively very small maybe can ignore.For example, by structural design (thickness, the structure outline etc. that comprise support 164) so that the rigidity of press section 162 much larger than the rigidity of these a plurality of support 164 entirety, make to be extruded in the process of distortion in aforementioned shell fragment 16, the deflection of press section 162 is much smaller than the deflection of these a plurality of supports 164.The difference of aforementioned rigidity can determine by the factor such as product specification, environment for use, not with special ratios or value is poor is limited.Now, upper in engineering application, press section 162 can be considered rigid body, and these a plurality of supports 164 can be considered elastomer, and strain is provided.
In the present embodiment, shell fragment 16 is one of the forming, and for example, by metal sheet drawing, press section 162 equates with the thickness of support 164, but the utility model is not as limit; For example, shell fragment 16 is still one of the forming, but the thickness of slab of press section 162 is greater than the thickness of slab of support 164.In addition, in practice, press section 162 is not also limited with tabular, and press section 162 is not also limited with plane contact with keycap 10.In the present embodiment, press down when causing shell fragment 16 and being out of shape in keycap 10, press section 162 keeps approximate horizontal and is tight against the basal surface of keycap 10 and moves down until trigger switch 18 with keycap 10, the strain of shell fragment 16 is born by these a plurality of supports 164, will mainly be determined by the rigidity (or strain-stress relation) of these a plurality of supports 164 therefore shell fragment 16 puts on the reaction force (that is feedback force source of user's press keycap 10 time impression) of keycap 10.In according in shell fragment 16 of the present utility model, the distortion of support 164 mainly occurs in body 1646, by each body 1646 each other without directly connect, therefore each body 1646 be only subject to connected stiff end 1642 and link 1644 restrain and Free Transform; In other words, the available feedback force of shell fragment 16 can obtain and control by changing the architectural characteristic (comprising thickness, profile, material etc.) of support 164 magnitude settings or design support 164, the especially architectural characteristic of body 1646.In the present embodiment, support 164 entirety are rectangle plate, can be by changing its width further to control its rigidity, but the utility model is not as limit.For example, the body of support 164 1646 is formed to many places hollow out, can reduce its rigidity.Again for example, in another embodiment, as shown in Figure 4, the support 264 of shell fragment 26 for roughly having the plate of crooked outline 2642 on the projecting direction (in as Fig. 1, shell fragment 16 is in the projecting direction of base plate 12) of base plate 12, and this crooked outline 2642 has a plurality of bend 2642a, the overall S-shaped extension of support 264, this support 264 also has lower rigidity compared to support 164.Again for example, in another embodiment, as shown in Figure 5, the support 274 of shell fragment 27 also for roughly having the plate of crooked outline 2742 on the projecting direction of base plate 12, and this crooked outline 2742 has a plurality of bend 2742a, the also S-shaped extension of support 274 entirety, only mainly in longitudinal extension (support 274 is mainly in horizontal expansion), but support 274 also has lower rigidity compared to support 164 equally.Supplementary notes in addition in support 164, though its body 1646 itself is directly tabular, also can be microbend shape in practice, and its recess is towards base plate 12, the stability while contributing to body 1646 strain.
As above stated specification, the rigidity of shell fragment 16 not depends mainly on the height of shell fragment 16, therefore compared to known pateriform round metal lug structure, shell fragment 16 of the present utility model is by the design to support 164, make shell fragment 16 overall structures there is elasticity, therefore the advantages such as rigidity is easily controlled, size design elasticity that shell fragment 16 of the present utility model has, and then can solve the prominent part of known circle and be difficult to take into account the predicament of pressing stroke and suitable pressing force characteristic.In addition, the rigidity of shell fragment can be designed and be controlled easily by the structure of support, configuration, contributes to reduce shell fragment the effect of altitude of space to rigidity is set, and increases the reliability of shell fragment processing procedure; Also contribute to delay or avoid shell fragment elastic fatigue, and then increase the useful life of shell fragment.
Go back to Fig. 1 and Fig. 3.In the present embodiment, keycap 10 can make enough greatly the center of gravity of keycap 10 also can stablize and keep falling within the view field of press section 162 in the pressing operation circulation of press-key structure 1 with press section 162 contact areas, and 16 energy of shell fragment support keycap 10 on base plate 12 with press section 162.Now, in the present embodiment, also omit mainly as the elevating mechanism 14 of stablizing keycap 10 lift action.In addition, in the present embodiment, switch 18 is touch switch, trigger, but the utility model is not as limit via the contact of press section 162.Refer to Fig. 6, it is according to the profile of the press-key structure 3 of another embodiment.Press-key structure 3 is roughly the same with press-key structure 1 structure, and the member that press-key structure 3 is identical is still continued to use the component symbol of press-key structure 1, and the related description that the explanation of press-key structure 3 each parts can be consulted press-key structure 3, does not separately repeat.Press-key structure 3 and press-key structure 1 main difference part are that the switch 38 of press-key structure 3 realized by film circuit board 39, switch 38 is mainly made up of two contacts that face setting, the press section 362 of the shell fragment 36 of press-key structure 3 more comprises protuberance 3622 to inductive switch 38, for example pass through press section 362 punching presses to form, or be attached on press section 362 and form by additional member.When shell fragment 36 is subject to the extruding of keycap 10 and makes press section 362 in the time that base plate 12 moves, the protuberance 3622 of press section 362 can push switch 38, makes the contact of its contact and realizes the trigger action of switch 38.Supplementary notes, in the present embodiment, protuberance 3622 is the outstanding structure in the part of press section 362, but the utility model is not as limit; For example that press section 362 entirety are outstanding towards base plate 12, and for example form the cambered surface towards base plate 12, also can realize the trigger action of aforementioned switches 38.
In the situation of aforementioned switches 18,38, press section 162 and protuberance 3622 are without having conductivity, but the utility model is not as limit.Refer to Fig. 7, it is according to the profile of the press-key structure 5 of another embodiment.Press-key structure 5 is roughly the same with press-key structure 3 structures, and the member that press-key structure 5 is identical is still continued to use the component symbol of press-key structure 3, and the related description that the explanation of press-key structure 5 each parts can be consulted press-key structure 3, does not separately repeat.Press-key structure 5 and press-key structure 3 main difference parts are that the switch 58 of press-key structure 5 mainly realized by circuit board 60, and switch 58 is mainly made up of two contiguous contacts that arrange on circuit board 60, and circuit board 60 can be but is not limited to flexible circuit board.Because switch 58 exposes, therefore the protuberance 3622 of the press section 362 of press-key structure 5 need have conductivity, for example protuberance 3622 materials itself are tool conductivity, or on protuberance 3622 coating one deck conductive materials, protuberance 3622 base materials are without being conductive material, by this, protuberance 3622 all can short switch 58 and realize the trigger action of switch 58.In addition, in the present embodiment, if press section 362 itself effectively and reliably can short switch 58, protuberance 3622 also can be without setting.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (10)
1. a press-key structure, is characterized in that comprising:
Keycap;
Base plate, is arranged under this keycap; And
Shell fragment, is arranged between this keycap and this base plate, and this shell fragment comprises:
Press section, around having; And
A plurality of supports, each this support has stiff end and link, and this stiff end is fixedly installed, and this link is connected in around this;
Wherein, the rigidity of this press section is greater than the rigidity of these a plurality of supports, when this keycap is pressed and while pushing this shell fragment, move and these a plurality of rack elasticities distortion towards this base plate this press section.
2. press-key structure as claimed in claim 1, is characterized in that: this stiff end of this support is fixed on this base plate.
3. press-key structure as claimed in claim 1, is characterized in that: this support is rectangle plate.
4. press-key structure as claimed in claim 1, is characterized in that: this support is the plate with crooked outline.
5. press-key structure as claimed in claim 4, is characterized in that: this crooked outline comprises a plurality of bends.
6. press-key structure as claimed in claim 1, is characterized in that: the quantity of these a plurality of supports is more than or equal to 2, and these a plurality of supports around evenly arrange in this.
7. press-key structure as claimed in claim 1, is characterized in that: this shell fragment is shaped by same metal sheet.
8. press-key structure as claimed in claim 1, is characterized in that: this press section thickness identical with this support material and this press section is greater than the thickness of this support.
9. press-key structure as claimed in claim 1, is characterized in that: this press-key structure also comprises switch, and this switch is arranged under this press section, and while wherein pushing this shell fragment when this keycap is pressed, this switch is moved to trigger towards this base plate in this press section.
10. press-key structure as claimed in claim 1, is characterized in that: this shell fragment supports this keycap on this base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200468.0U CN203826263U (en) | 2014-04-23 | 2014-04-23 | Button structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200468.0U CN203826263U (en) | 2014-04-23 | 2014-04-23 | Button structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826263U true CN203826263U (en) | 2014-09-10 |
Family
ID=51481734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420200468.0U Expired - Lifetime CN203826263U (en) | 2014-04-23 | 2014-04-23 | Button structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826263U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106254631A (en) * | 2016-07-22 | 2016-12-21 | 歌尔股份有限公司 | A kind of button module and mobile phone |
| CN107710365A (en) * | 2015-07-01 | 2018-02-16 | 富士通电子零件有限公司 | Key switch and keyboard |
| CN111816486A (en) * | 2019-04-10 | 2020-10-23 | 群光电子股份有限公司 | keyboard device |
| CN116370969A (en) * | 2023-04-17 | 2023-07-04 | 广州市品众电子科技有限公司 | Key and game handle |
-
2014
- 2014-04-23 CN CN201420200468.0U patent/CN203826263U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107710365A (en) * | 2015-07-01 | 2018-02-16 | 富士通电子零件有限公司 | Key switch and keyboard |
| US10446343B2 (en) | 2015-07-01 | 2019-10-15 | Fujitsu Component Limited | Key switch and keyboard |
| CN106254631A (en) * | 2016-07-22 | 2016-12-21 | 歌尔股份有限公司 | A kind of button module and mobile phone |
| CN111816486A (en) * | 2019-04-10 | 2020-10-23 | 群光电子股份有限公司 | keyboard device |
| CN111816486B (en) * | 2019-04-10 | 2022-12-16 | 群光电子股份有限公司 | Keyboard device |
| CN116370969A (en) * | 2023-04-17 | 2023-07-04 | 广州市品众电子科技有限公司 | Key and game handle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |