CN102087928B - Key unit - Google Patents
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- Publication number
- CN102087928B CN102087928B CN 200910310780 CN200910310780A CN102087928B CN 102087928 B CN102087928 B CN 102087928B CN 200910310780 CN200910310780 CN 200910310780 CN 200910310780 A CN200910310780 A CN 200910310780A CN 102087928 B CN102087928 B CN 102087928B
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- China
- Prior art keywords
- layer
- push
- button unit
- protective layer
- tin coating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The invention discloses a key unit. The key unit comprises a key mat layer which is formed by silicon rubber or thermoplastic elastomer, wherein a protective layer which is formed by transparent hard resin is arranged above the key mat layer, and is provided with an upper surface which faces towards a user and a lower surface which is opposite to the upper surface in parallel; a color layer is coated on the lower surface of the protective layer; a tin coating is at least arranged between the key mat layer and the protective layer; the part, which is irradiated by laser from the upper surface of the protective layer, on the tin coating is removed to form a hollow part; and the color layer is not damaged due to the laser irradiation. The key unit can be firstly assembled with a mobile device; after all steps apart from marking are finished before shipment, the marking is performed according to the shipment place of the mobile device, so that the inventory of multi-symbol (language) edition key units is reduced.
Description
[technical field]
The present invention is about a kind of push-button unit, and this push-button unit is applied to mobile device, for example portable mobile phone.
[background technology]
Push-button unit is the vitals that consists of such as mobile devices such as portable mobile phones, on mobile phone, key panel surface can integrated a plurality of action buttons be protruded and is arranged, common this key panel is made by animi resin class material, and generally being provided with some key mats under action button, described key mat is made by soft prepared material such as silicon rubber or thermoplastic elastomer.The user that generally is applied as of this push-button unit brings great convenience at the input information of mobile phone.And due to the development of mobile phone telephony, especially the progress of mobile phone slimming trend, and people's improving constantly the mobile phone appearance requirement, this push-button unit with the protruding-type keycap develops into gradually and is flat push-button unit fully, and namely action button does not protrude from the key panel setting.
Aforementioned two kinds of push-button units for industry now be generally that mobile device is equipped with by key class, in production and assembling process, usually first complete the surface treatment of push-button unit, then through the erosion of laser surface radium engraving, after the metal cladding of push-button unit forms certain pattern and word with the button shipment to the client.But the drawback of this assembling mode also day by day highlights, because mobile phone need to be sold to all over the world, need push-button unit corresponding different word and symbol for different areas, according to production and assembly model now, when the mobile phone of an area or a kind of language version unsalable, can cause the mobile phone huge stocks that assembled, bring loss for the mobile phone maker and seller.
Therefore, need to provide a kind of push-button unit that can address the above problem.
[summary of the invention]
The purpose that the present invention will reach is the production procedure by the change push-button unit, and the stock who reduces many symbols (language) version push-button unit, client adjust the demand of radium carving symbol flexibly according to sales situation.
Push-button unit of the present invention; it comprises the key mat layer that is formed by silicon rubber or thermoplastic elastomer; the upside of key mat layer is provided with the protective layer that is formed by transparent animi resin; protective layer has one towards user's upper surface and a relative lower surface parallel with upper surface; one color layers is coated on the lower surface of protective layer; wherein at least also be provided with a tin coating between key mat layer and protective layer; by the irradiation of laser from the protective layer upper surface; remove the part of being crossed by Ear Mucosa Treated by He Ne Laser Irradiation on tin coating and form hollow-out parts, color layers is injury-free simultaneously.
Compared with prior art, push-button unit of the present invention can be first and the mobile device assembling, complete before whole shipment after the cutting process except mark, then according to the shipment of mobile device carry out mark, reduce the stock of many symbols (language) version push-button unit.And this push-button unit is in the mark process, and laser can form the hollow-out parts of representative digit or symbol and not damage other each layer that laser sees through on tin coating.
[description of drawings]
The first figure is the stereogram after push-button unit assembling of the present invention;
The second figure is the stereogram of another one angle after the assembling of push-button unit shown in the first figure;
The 3rd figure is the three-dimensional exploded view of push-button unit shown in the first figure;
The 4th figure is without the section partial schematic diagram of crossing before laser thunder engraving loses after the assembling of push-button unit shown in the first figure;
The 5th figure is through the section partial schematic diagram after the erosion of laser thunder engraving after the assembling of push-button unit shown in the first figure is completed;
The 6th figure is without diagram backlight after push-button unit shown in the first figure is assemblied on mobile phone;
The 7th figure has diagram backlight after push-button unit shown in the first figure is assemblied on mobile phone.
[embodiment]
Now jointly detailed elaboration is carried out in the invention in connection with diagram and word, in the following description, more thoroughly understood in order to make the present invention, will propose several concrete details.But obviously, for those skilled in the art, do not have in these details some or all, also can implement the present invention fully.In some examples, for fear of unnecessary feature, the present invention is thickened unclear, for well-known treatment step, do not do too detailed elaboration.
See also Fig. 1 to Fig. 5, push-button unit 1 of the present invention, is comprised to top layer altogether by bottom: key mat layer 10, optical waveguide layer 20, protection oil reservoir 30, tin coating 40, light-absorption layer 50, color layers 60 and protective layer 70.Aforementioned every one deck is superimposed on each corresponding layer successively, jointly forms push-button unit 1.
As the bottom of push-button unit 1, key mat layer 10 is generally soft and has flexible plastic material and makes, as: silicon rubber or thermoplastic elastomer.Key mat layer 10 can be for transparent.This plastic cement elastic layer 10 can be for fully plane, also the surface protrusion arranges several key bodies 11 thereon, as shown in Figure 5, key body 11 is arranged according to the form of mobile phone demand, key mat layer shown in Figure 5 10 is not for there is no the state before mark, and the sign of the numerical key of seeing on the finished product mobile phone or letter key is in subsequent manufacturing processes, and the respective layer mark that covers on key mat layer 10 or keycap 11 by laser forms.As shown in Figure 2, the lower surface of plastic cement elastic layer 10 arranges with key body 11 equivalent amounts or greater than the pressing body 12 of key body quantity corresponding to the position of key body 11 is outstanding.
The upside of described key mat layer 10 is equipped with optical waveguide layer 20, this optical waveguide layer 20 is by making as translucent resin materials such as PC (Merlon) or PET (PETG), such translucent resin material has good leaded light performance, be arranged at most of light that push-button unit 1 edge or middle light source (not shown) give out can be in optical waveguide layer 20 through total reflection and conduct.The upper and lower surface of optical waveguide layer 20 runs through corresponding to the key body 11 of key mat layer 10 the hole section 21 that is provided with, and when optical waveguide layer 20 was placed on key mat layer 10, key body 11 passed to locate optical waveguide layer 20 from hole section 21, prevents optical waveguide layer 20 transverse shiftings.Usually, optical waveguide layer 20 is bonding with the protection oil reservoir 30 that is adjacent by double faced adhesive tape.
Next the protection oil reservoir 30 of being described, tin coating 40, light-absorption layer 50, color layers 60 and protective layer 70, every one deck all depends on each corresponding layer by variety of way.
Be positioned at the protective layer 70 of key mat layer 10 upside in order to protect push-button unit 1 because friction is too much faded; protective layer 70 is formed by the ultraviolet hardening resin of the polyurethanes with abrasion resistance properties usually; when forming the required protective layer 70 of push-button unit 1; ultraviolet hardening resin need to be injected the mould (not shown) identical with protective layer 70 shape and structures; by the UV-irradiation in the certain hour scope; make the ultraviolet hardening resin in mould harden and form protective layer 70, take out protective layer 70 in mould.Protective layer 70 has one towards user's upper surface 71 and a relative lower surface 72 parallel with upper surface 71.
The lower surface of color layers 60 is provided with light-absorption layer 50, and light-absorption layer 50 is that transparent black ink or the similar material that can play absorption effects are coated with the surface that invests institute's corresponding color layer 60 and form.
After light-absorption layer 50 is coated with and invests color layers 60; by any one mode in physical vapour deposition (PVD), sputter or multicoating; metallic tin is plated in the light-absorption layer 50 surface formation tin coating 40 relative with color layers 60; the lower surface of tin coating 40 is coated with protection oil reservoir 30, and protection oil reservoir 30 can prevent that tin coating 40 is exposed in air for a long time and the oxidation that occurs or the phenomenon of physical instability.Carry out the mode of radium engraving erosion on tin coating 40 by the laser of certain energy, penetrate tin coating 40 and form hollow-out parts 41, hollow-out parts 41 is the corresponding numeral of push-button unit 1, pattern or symbol (such as 1,2,3,4,5,6,7,8,9, #, * etc.).The metal material that tin coating 40 in the present invention plates is tin (Sn), according to the difference of using, also can be zinc-plated and the sintetics of other metals, such as: lead, antimony etc.The object of the invention is to reduce the stock, after push-button unit 1 assembling is completed, according to the shipment of mobile phone ground, push-button unit 1 is carried out the erosion of laser radium engraving, produce symbol and the word of corresponding country on push-button unit 1, this mode of production can be good at realizing the object of the invention.Because the fusing point of tin is lower; adopt the alloy product of tin or tin and other metals as coating material; after push-button unit 1 assembling is complete; with the front of the laser in a branch of at least particular range of wavelengths (the laser spot energy reaches the fusing point of tin just) from push-button unit 1, namely etching is carried out to tin coating 40 in the surface of protective layer 70.And to tin coating 40 etching the time, all not Stimulated Light etching impacts of other each layer (for example light-absorption layer 50, color layers 60 and protective layer 70) that seen through by laser.Pass through said method, make after push-button unit 1 and mobile device are assembled, carry out again laser marking according to the market of mobile device, form corresponding numeral, pattern or symbol, reduce the stock of many symbols (language) version push-button unit, guaranteed the instant assembling of push-button unit 1.
This mode of production can also produce another keyboard display effect.When backlight, the user from the top view of push-button unit 1 to be the color of color layers 60, only have mobile phone to open when backlight, the user can be from the top view of push-button unit 1 to the numeral that is formed by tin coating 40, pattern and symbol.
Technology contents of the present invention and technical characterstic have disclosed as above; yet those of ordinary skill in the art still may carry out all replacement and modifications that does not deviate from spirit of the present invention based on teaching of the present invention and announcement; for example: tin directly is plated in the lower surface 72 of protective layer 70, perhaps saves some inessential layer in push-button unit 1 etc.Therefore, protection scope of the present invention should be not limited to the content that execution mode discloses, and comprises various do not deviate from replacement of the present invention and modifications, is the present patent application claim and contains.
Claims (8)
1. push-button unit, it comprises the key mat layer that is formed by silicon rubber or thermoplastic elastomer, one side of key mat layer is provided with the protective layer that is formed by transparent animi resin, protective layer has one towards user's upper surface and a relative lower surface parallel with upper surface, it is characterized in that: at least also be provided with a tin coating between key mat layer and protective layer, the lower surface that one color layers is coated on protective layer is being hidden tin coating when backlight for push-button unit, by the irradiation of the laser in particular range of wavelengths from the protective layer upper surface, remove the part of being crossed by Ear Mucosa Treated by He Ne Laser Irradiation on tin coating and form hollow-out parts, color layers is not because of the Ear Mucosa Treated by He Ne Laser Irradiation damaged simultaneously.
2. push-button unit as claimed in claim 1, it is characterized in that: described tin coating is to be plated on color layers by any one mode in physical vapour deposition (PVD), sputter or multicoating.
3. push-button unit as claimed in claim 1, it is characterized in that: described color layers lower surface is coated with a light-absorption layer, and tin coating is to be plated on light-absorption layer by any one mode in physical vapour deposition (PVD), sputter or multicoating.
4. push-button unit as claimed in claim 3, it is characterized in that: described light-absorption layer is the semitransparent black color ink.
5. push-button unit as claimed in claim 1, it is characterized in that: described hollow-out parts is the set of some hollow out points, hollow-out parts consists of numeral, pattern or symbol.
6. push-button unit as described in any one in claim 1 to 5, it is characterized in that: the lower surface of described tin coating is coated with the protection oil reservoir that prevents the tin coating oxidation.
7. push-button unit as claimed in claim 6, it is characterized in that: also be provided with an optical waveguide layer between key mat layer and protective layer, this optical waveguide layer is made by the translucent resin material of PC (Merlon) or PET (PETG).
8. push-button unit as claimed in claim 7 is characterized in that: described optical waveguide layer adheres to the layer adjacent with the optical waveguide layer top by double faced adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910310780 CN102087928B (en) | 2009-12-03 | 2009-12-03 | Key unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910310780 CN102087928B (en) | 2009-12-03 | 2009-12-03 | Key unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102087928A CN102087928A (en) | 2011-06-08 |
| CN102087928B true CN102087928B (en) | 2013-06-12 |
Family
ID=44099658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910310780 Expired - Fee Related CN102087928B (en) | 2009-12-03 | 2009-12-03 | Key unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102087928B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832070B (en) * | 2012-08-24 | 2016-06-01 | 张文嵛 | The key cap manufacturing process of illuminated keyboard and illuminated keyboard |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5911317A (en) * | 1997-08-26 | 1999-06-15 | Silitek Corporation | Light permeable metal plated rubber key |
| CN2687816Y (en) * | 2004-03-16 | 2005-03-23 | 东莞大洋硅胶制品有限公司 | A button with electroplated metal on the surface |
| CN201196915Y (en) * | 2008-01-29 | 2009-02-18 | 毅嘉科技股份有限公司 | Key structure with three-dimensional pattern |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11162284A (en) * | 1997-11-28 | 1999-06-18 | Shin Etsu Polymer Co Ltd | Push-button switch and cover member for push-button switch |
| JP3589582B2 (en) * | 1999-02-19 | 2004-11-17 | 信越ポリマー株式会社 | Push button switch structure and method of manufacturing the same |
| KR20020080027A (en) * | 2001-04-10 | 2002-10-23 | 김영호 | Manufacturing Method of Cellular Phone Keypad |
| NZ563972A (en) * | 2005-08-29 | 2010-12-24 | Sinclair Systems International Llc | Labeling machine using multiple bellows where a label is marked as it is transfered to the product to be labeled |
| JP2009245899A (en) * | 2008-03-31 | 2009-10-22 | Sunarrow Ltd | Transparent key, key sheet, and method of forming the key sheet |
-
2009
- 2009-12-03 CN CN 200910310780 patent/CN102087928B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5911317A (en) * | 1997-08-26 | 1999-06-15 | Silitek Corporation | Light permeable metal plated rubber key |
| CN2687816Y (en) * | 2004-03-16 | 2005-03-23 | 东莞大洋硅胶制品有限公司 | A button with electroplated metal on the surface |
| CN201196915Y (en) * | 2008-01-29 | 2009-02-18 | 毅嘉科技股份有限公司 | Key structure with three-dimensional pattern |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2000-306453A 2000.11.02 |
| JP特开2009-245899A 2009.10.22 |
| JP特开平11-162284A 1999.06.18 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102087928A (en) | 2011-06-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20130612 Termination date: 20191203 |