CN101667500A - Arch-shaped thin-film switch provided with silica gel contact and assembly method thereof - Google Patents
Arch-shaped thin-film switch provided with silica gel contact and assembly method thereof Download PDFInfo
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- CN101667500A CN101667500A CN200910178945A CN200910178945A CN101667500A CN 101667500 A CN101667500 A CN 101667500A CN 200910178945 A CN200910178945 A CN 200910178945A CN 200910178945 A CN200910178945 A CN 200910178945A CN 101667500 A CN101667500 A CN 101667500A
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- silica gel
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- film
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Abstract
The invention discloses an arch-shaped thin-film switch provided with a silica gel contact, which comprises the silica gel contact arranged on the surface of a thin film. The invention also disclosesan assembly method of the arch-shaped thin-film switch provided with the silica gel contact; the silica gel contact is molded on the surface of the thin film of the arch-shaped thin-film switch; and the arch-shaped thin-film switch provided with the silica gel contact is assembled with a keyboard which is not provided with the silica gel contact. The switch and the assembly method thereof can solve a series of problem in the matching way between the existing keyboard silica gel contact and the thin-film switch.
Description
Technical field
The present invention relates to thin film switch and mounting technology thereof in the mobile phone, relate in particular to a kind of arch-shaped thin-film switch provided and assembly method that is applied to band silica gel contact in the mobile phone.
Background technology
In the existing handset structure, cell phone keyboard is provided with silica gel contact at the keyboard back side, and the keyboard silica gel contact matched with thin film switch is assembled together.Along with mobile phones design develops to frivolous, reliable direction, existing cell phone keyboard and thin film switch, adopt the fit system of keyboard silica gel contact and thin film switch can not meet consumers' demand a series of problems such as the resilience feel that exists keyboard to push is bad, keyboard complex process, keyboard structure design size height.At present, press for and address these problems, at the assembling aspect of keyboard structure design size, keyboard processing technology and keyboard and thin film switch improveing.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of arch-shaped thin-film switch provided and assembly method with silica gel contact, can solve the existing a series of problems of fit system that adopt existing keyboard silica gel contact and thin film switch.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of arch-shaped thin-film switch provided with silica gel contact, this switch comprises: arch-shaped thin-film switch provided film surface and be positioned at DOME shell fragment under the described film surface, this switch also comprises: be arranged on the silica gel contact on the described film surface.
Wherein, the position of described silica gel contact is corresponding with the position of described DOME shell fragment.
Wherein, described silica gel contact is specially: by the silica gel contact of in-molded mode moulding on film surface.
A kind of arch-shaped thin-film switch provided assembly method with silica gel contact, this method comprises:
On arch-shaped thin-film switch provided film surface, mold silica gel contact;
Will the band silica gel contact arch-shaped thin-film switch provided, assemble mutually with keyboard not with silica gel contact.
Wherein, the described silica gel contact that molds further comprises: mold described silica gel contact by in-molded mode.
Wherein, molding described silica gel contact by described in-molded mode specifically comprises: film is placed in the oil pressure mould that sets silica gel contact; Put into silica gel, adopt thermoforming way that silica gel and thin mold pressing are lumped together.
Wherein, also comprise after silica gel and thin mold pressing are lumped together: pasting protective film is watered in the another side printing at thin mould; Punch out the outer shape and the position, hole of arch-shaped thin-film switch provided needs; After mounting the DOME shell fragment, the silica gel contact correspondence position sticks spacer layer.
Switch of the present invention comprises: arch-shaped thin-film switch provided film surface and be positioned at DOME shell fragment under the film surface, this switch also comprises: be arranged on the silica gel contact on the arch-shaped thin-film switch provided film surface.
Adopt the present invention, go out silica gel contact at arch-shaped thin-film switch provided surface forming, to replace the silica gel contact at the cell phone keyboard back side in the prior art, the thin film switch of this band silica gel contact is assembled mutually with the keyboard with the keyboard silica gel contact not, can reduce the assembly precision requirement that cell phone keyboard cooperates with arched film; Improve the resilience feel that keyboard is pushed; Simplify keyboard technology; Reduce the design size and the height of keyboard structure.
Description of drawings
Fig. 1 is the existing arch-shaped thin-film switch provided schematic diagram of cell phone keyboard;
Fig. 2 is the existing arch-shaped thin-film switch provided A-A partial cutaway schematic of cell phone keyboard;
Fig. 3 is the assembling schematic diagram of existing arch-shaped thin-film switch provided structure of cell phone keyboard and cell phone keyboard;
Fig. 4 is the assembling schematic diagram of existing mobile phone film keyboard and arch-shaped thin-film switch provided structure;
Fig. 5 is the arch-shaped thin-film switch provided schematic diagram of cell phone keyboard of the present invention;
Fig. 6 is the arch-shaped thin-film switch provided B-B partial cutaway schematic of cell phone keyboard of the present invention;
Fig. 7 is the assembling schematic diagram of arch-shaped thin-film switch provided structure of cell phone keyboard of the present invention and cell phone keyboard;
Fig. 8 is the arch-shaped thin-film switch provided assembling schematic diagram with the film keyboard structure of mobile phone of the present invention.
Embodiment
Basic thought of the present invention is: go out silica gel contact at arch-shaped thin-film switch provided surface forming, to replace the silica gel contact at the cell phone keyboard back side in the prior art.
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme.
A kind of arch-shaped thin-film switch provided with silica gel contact, this switch comprises: arch-shaped thin-film switch provided film surface and be positioned at DOME shell fragment under the described film surface.Because film surface and DOME shell fragment all are existing, therefore do not give unnecessary details here.This switch also comprises: be arranged on the silica gel contact on the arch-shaped thin-film switch provided film surface.
Here, the position of silica gel contact is corresponding with the position of DOME shell fragment.
Here, silica gel contact is specially: by the silica gel contact of in-molded mode moulding on arch-shaped thin-film switch provided film surface.
Here, the minimum or suitable height of silica gel contact is 0.2～0.3mm, but highly also can be not limited, also can such as 0.4～1mm as required.
A kind of arch-shaped thin-film switch provided assembly method with silica gel contact, this method may further comprise the steps:
Step 101, on arch-shaped thin-film switch provided film surface, mold silica gel contact.
Step 102, will be with silica gel contact arch-shaped thin-film switch provided, assemble mutually with keyboard not with silica gel contact.
Here, keyboard can be a cell phone keyboard, also can be the keyboard of other electronic equipments such as computer.
At the technical scheme that is made of step 101～102, step 101 is specially: mold silica gel contact by in-molded mode.
Here, molding silica gel contact by in-molded mode specifically comprises: film is placed in the oil pressure mould that sets silica gel contact; Put into silica gel, adopt thermoforming way that silica gel and thin mold pressing are lumped together.
Here, also comprise after silica gel and thin mold pressing are lumped together: pasting protective film is watered in the another side printing at thin mould; Punch out the outer shape and the position, hole of arch-shaped thin-film switch provided needs; After mounting the DOME shell fragment, the silica gel contact correspondence position sticks spacer layer.
In sum, the present invention mainly comprises following content:
Core design technology of the present invention is: the surface at existing mobile phone thin film switch, by the in-molded mode of silica gel oil pressure mould, mold silica gel contact at the PET on thin film switch top layer film surface, and substituted the silica gel contact that the existing keyboard back side is provided with.Here, silica gel contact is commonly called as and is conductive pole.This silica gel contact is the same with prior art, adopts the silica gel soft materials equally, still keeps the buffering elasticity of keyboard silica gel contact in the prior art.
Because, in the fit structure of existing keyboard and thin film switch, keyboard and arch-shaped thin-film switch provided be two parts, therefore, error at design, processing, fit on can cause silica gel contact and the axial axiality of arched film on the keyboard to have deviation, even understand off-axis, thereby reduce the keyboard feel to 0.5mm.If the keyboard of band silica gel contact and arch-shaped thin-film switch provided between also have light guide sheet, then the thickness of light guide sheet intercepts and also can further reduce the push feel of keyboard silica gel contact to thin film switch, can lose 25% even higher resilience feel usually; And adopt the arch-shaped thin-film switch provided of band silica gel contact of the present invention, and with not with the keyboard of keyboard silica gel contact assembled construction form mutually, because silica gel contact itself is just on arch-shaped thin-film switch provided, do not exist and arch-shaped thin-film switch provided between have the problem of light guide sheet, and rigging error is little, therefore, can improve the resilience feel loss of keyboard in above-mentioned two kinds of situations fully.And under the situation that does not change the keyboard feel, the present invention can allow keyboard no longer need to assemble at the bottom of the silica gel, thereby has simplified keyboard technology, has reduced the design size of keyboard structure.
Specifically, in the mobile phone of the present invention, be with the arch-shaped thin-film switch provided of silica gel contact, its production technology is: the PET film is placed in the oil pressure mould that designs silica gel contact, put into silica gel, adopt thermoforming way that silica gel and the thin mold pressing of PET are lumped together, except that the silica gel contact position, PET film surface layer of silica gel thickness has only 0.05～0.1mm, and the height of silica gel contact can be low to moderate 0.2～0.3mm.
After technology is finished, water pasting protective film in the another side printing of PET again; Punch out outer shape and position, hole that the mobile phone thin film switch needs; Mount the DOME shell fragment at the silica gel contact correspondence position; Stick spacer layer, release film at last, finish whole operation.
The schematic diagram of Fig. 1, Fig. 2 and A-A part section arch-shaped thin-film switch provided for existing cell phone keyboard; Fig. 5, Fig. 6 are the schematic diagram of the arch-shaped thin-film switch provided and B-B part section of cell phone keyboard of the present invention.Contrast prior art and the arch-shaped thin-film switch provided structure of mobile phone of the present invention as can be known: the present invention processes silica gel contact by in-molded mode at the PET upper surface of each DOME shell fragment correspondence on existing handset structure basis, this technology can ensure that the coaxiality error of silica gel contact and DOME shell fragment is very little.Wherein, the PCB that relates among Fig. 2 and Fig. 6 refers to wiring board.
Fig. 3 is the assembling schematic diagram of existing arch-shaped thin-film switch provided structure of cell phone keyboard and cell phone keyboard; Fig. 7 is the assembling schematic diagram of arch-shaped thin-film switch provided structure of cell phone keyboard of the present invention and cell phone keyboard.The assembling of contrast prior art and arch-shaped thin-film switch provided structure of cell phone keyboard of the present invention and cell phone keyboard is as can be known: the existing structure of Fig. 3 and assembling, between keyboard silica gel contact and DOME shell fragment, there is light guide sheet to intercept, the thickness of light guide sheet often reaches 0.12mm, is subjected to its obstruct can weaken keyboard resilience feel; And structure of the present invention and the assembling of Fig. 4 are different from prior art, do not have the light guide sheet that intercepts between silica gel contact and DOME shell fragment, that is to say, can directly touch down the DOME shell fragment, thereby make the almost not loss of resilience feel of DOME shell fragment, bring the better operating handle of user and experience.
Adopt the present invention, particularly in some handset structures are used, when using in the handset structure such as employing film keyboard, can reduce the design size and the height of keyboard structure greatly.
Fig. 4 is the assembling schematic diagram of existing mobile phone film keyboard and arch-shaped thin-film switch provided structure; Fig. 8 is the arch-shaped thin-film switch provided assembling schematic diagram with the film keyboard structure of mobile phone of the present invention.The assembling of contrast prior art and mobile phone film keyboard of the present invention and arch-shaped thin-film switch provided structure is as can be known: adopt the solution of the present invention in Fig. 8, can cancel at the bottom of the silica gel of film keyboard, thereby simplify the keyboard processing technology to a great extent, and reduce the gauge after keyboard and the arch-shaped thin-film switch provided overall co-ordination.Wherein, so-called film keyboard is different from the keycap design that has a common grain of keyboard now, refers to adopt whole a slice film, does the design of key face as PC, PET thin slice etc.; There is silica gel contact in existing film keyboard at the keyboard back side, also is need to paste at the bottom of the silica gel.Has the effect that connects keycap at the bottom of the silica gel of only existing film keyboard and unlike existing common keyboard.
Here, the PET that more than relates to is a type of film; Light guide sheet is represented with LGF.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (7)
1, a kind of arch-shaped thin-film switch provided with silica gel contact, this switch comprises: arch-shaped thin-film switch provided film surface and be positioned at DOME shell fragment under the described film surface is characterized in that this switch also comprises: be arranged on the silica gel contact on the described film surface.
2, method according to claim 1 is characterized in that, the position of described silica gel contact is corresponding with the position of described DOME shell fragment.
3, switch according to claim 1 is characterized in that, described silica gel contact is specially: by the silica gel contact of in-molded mode moulding on film surface.
4, a kind of arch-shaped thin-film switch provided assembly method with silica gel contact is characterized in that this method comprises:
On arch-shaped thin-film switch provided film surface, mold silica gel contact;
Will the band silica gel contact arch-shaped thin-film switch provided, assemble mutually with keyboard not with silica gel contact.
5, method according to claim 4 is characterized in that, the described silica gel contact that molds further comprises: mold described silica gel contact by in-molded mode.
6, method according to claim 5 is characterized in that, molds described silica gel contact by described in-molded mode and specifically comprises: film is placed in the oil pressure mould that sets silica gel contact; Put into silica gel, adopt thermoforming way that silica gel and thin mold pressing are lumped together.
7, method according to claim 6 is characterized in that, also comprise after silica gel and thin mold pressing are lumped together: pasting protective film is watered in the another side printing at thin mould; Punch out the outer shape and the position, hole of arch-shaped thin-film switch provided needs; After mounting the DOME shell fragment, the silica gel contact correspondence position sticks spacer layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910178945A CN101667500A (en) | 2009-09-30 | 2009-09-30 | Arch-shaped thin-film switch provided with silica gel contact and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910178945A CN101667500A (en) | 2009-09-30 | 2009-09-30 | Arch-shaped thin-film switch provided with silica gel contact and assembly method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101667500A true CN101667500A (en) | 2010-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910178945A Pending CN101667500A (en) | 2009-09-30 | 2009-09-30 | Arch-shaped thin-film switch provided with silica gel contact and assembly method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568898A (en) * | 2011-12-27 | 2012-07-11 | 广东步步高电子工业有限公司 | Thin-film switch with Dome conductive elastic sheet |
| CN102610420A (en) * | 2012-04-06 | 2012-07-25 | 薛志勇 | Film key |
| CN102626863A (en) * | 2012-05-11 | 2012-08-08 | 广东升威电子制品有限公司 | Automatic assembling equipment for silica gel switch of encoder |
| WO2018059340A1 (en) * | 2016-09-29 | 2018-04-05 | 深圳创维数字技术有限公司 | Button structure of electronic product |
| WO2020191680A1 (en) * | 2019-03-27 | 2020-10-01 | 深圳市汇创达科技股份有限公司 | Key structure capable of reducing pressing feeling of elastic piece and electronic device |
| CN112223928A (en) * | 2020-10-09 | 2021-01-15 | 深圳市东成电子有限公司 | Method for manufacturing silica gel panel of generator |
-
2009
- 2009-09-30 CN CN200910178945A patent/CN101667500A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568898A (en) * | 2011-12-27 | 2012-07-11 | 广东步步高电子工业有限公司 | Thin-film switch with Dome conductive elastic sheet |
| CN102610420A (en) * | 2012-04-06 | 2012-07-25 | 薛志勇 | Film key |
| CN102626863A (en) * | 2012-05-11 | 2012-08-08 | 广东升威电子制品有限公司 | Automatic assembling equipment for silica gel switch of encoder |
| WO2018059340A1 (en) * | 2016-09-29 | 2018-04-05 | 深圳创维数字技术有限公司 | Button structure of electronic product |
| WO2020191680A1 (en) * | 2019-03-27 | 2020-10-01 | 深圳市汇创达科技股份有限公司 | Key structure capable of reducing pressing feeling of elastic piece and electronic device |
| CN112223928A (en) * | 2020-10-09 | 2021-01-15 | 深圳市东成电子有限公司 | Method for manufacturing silica gel panel of generator |
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Application publication date: 20100310 |