CN201278323Y - Metal thin film switch for mobile phone - Google Patents
Metal thin film switch for mobile phone Download PDFInfo
- Publication number
- CN201278323Y CN201278323Y CNU2008202124780U CN200820212478U CN201278323Y CN 201278323 Y CN201278323 Y CN 201278323Y CN U2008202124780 U CNU2008202124780 U CN U2008202124780U CN 200820212478 U CN200820212478 U CN 200820212478U CN 201278323 Y CN201278323 Y CN 201278323Y
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- China
- Prior art keywords
- metal
- mobile phone
- substrate
- plastic film
- metal clips
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- Expired - Lifetime
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Abstract
The utility model discloses a metal film switch for a mobile telephone, which is arranged under the keyboard of the mobile telephone and is used for conducting keypads of the mobile telephone. The metal film switch comprises a substrate and a metal shrapnel jointed on the substrate, wherein the substrate is a plastic film which is provided with a groove inosculated with the shape of the metal shrapnel; the metal shrapnel is jointed in the groove of the plastic film through non-setting adhesive; the back of the plastic film is printed with a non-setting adhesive layer which is jointed with a protective film. The utility model greatly reduces production cost, largely increases contact areas, improves the adhesion firmness of the metal shrapnel, effectively guarantees the quality of products, and well guarantees pressing-down feel. Besides, the utility model is not easy to generate faulty operation after being pressed down, and can make products ultra-thin.
Description
Technical field
The utility model discloses a kind of Cellphone Accessories, and particularly a kind of being arranged at below the cell phone keyboard is used for the mobile phone metal dome switches of conducting mobile phone key.
Background technology
Mobile phone key is a requisite accessory during mobile phone is manufactured, metal dome switches for existing mobile phone capable in general a kind of mobile phone key form.When existing general mobile phone metal dome switches is made, normally adopt the processing mode of liquid-state silicon gel oil pressure moulding to be made into the substrate that has the contact, adopt then double faced adhesive tape bonding or by drip adhesive process with the metal clips fixed combination at place, the on-chip contact of silica gel, this traditional handicraft is made the mobile phone metal dome switches, need a large amount of heavy oil pressure units and expend lot of materials, the cost of manufacture height.Silica gel substrate two sides in the traditional handicraft is plate, and on the one hand, metal clips is spherical, and all the other silica gel substrates are bonded as a contact, and are bonding firm inadequately, come off easily; On the other hand, silica gel substrate opposite side is tabular, when pushing, is not easy to make metal clips to depress, and is easy to generate misoperation.It is simple spherical that metal clips is, and when pushing, is difficult for the conducting key contacts downwards, is easy to generate misoperation.In the prior art in order to make metal dome switches be fitted on the mobile phone pcb board in use easily, gas is derived easily in the applying process, the general air slot that all need on the silica gel substrate, form each metal clips of conducting, on the silica gel substrate, form air slot, will certainly increase the thickness of silica gel substrate, influence ultra-thinization of product.
Summary of the invention
When making at the above-mentioned mobile phone metal dome switches of mentioning of the prior art, need a large amount of heavy oil pressure units and expend lot of materials, the shortcoming that cost of manufacture is high, the utility model adopt PET as substrate material, and metal clips is bonded on the PET substrate by adhesive sticker.
The utility model is provided with the groove that matches with the metal clips shape on the PET substrate, metal clips is arranged in the groove, and metal clips is face with the PET substrate and contacts, and bonding firm, difficult drop-off has solved in the traditional handicraft, the shortcoming that metal clips comes off easily.
The utility model is provided with salient point in PET substrate front, has solved the shortcoming or the bad problem of feel that are easy to generate misoperation when metal clips is depressed in the prior art.
The utility model is provided with the contact of projection on the metal clips lower surface, make when depressing, and metal clips and pcb board contact stabilization have solved the shortcoming that is easy to generate misoperation.
The utility model directly is provided with air slot on non-drying glue layer, do not increase product thickness, can make product accomplish ultra-thinization.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of mobile phone metal dome switches; comprise substrate and be fitted in on-chip metal clips; substrate is a plastic film; plastic film is provided with the groove that matches with the metal clips shape; metal clips is combined in the groove on the plastic film by pressure sensitive adhesive; the plastic film back up has non-drying glue layer, is fitted with diaphragm on the non-drying glue layer.
The technical scheme that its technical problem that solves the utility model adopts further comprises:
Described non-drying glue layer is provided with the air slot that is communicated with the adjacent metal shell fragment.
Described plastic film front is provided with salient point corresponding to the metal clips centre position.
Described metal clips lower surface is provided with outstanding contact downwards.
Described contact is provided with four, and four contacts distribute about metal clips center axial symmetry.
The material of described plastic film is PET.
The beneficial effects of the utility model are: the utility model adopts PET as substrate, thereby the special purpose machinery and the material cost of making substrate have been saved, reduced production cost largely, be provided with the groove that matches with the metal clips shape at the PET substrate, making metal clips touch present face with substrate by traditional point contacts, increase contact area greatly, improved the bonding fastness of metal clips, effectively guaranteed the quality of product.The utility model is provided with salient point in the front, and is provided with the contact of projection at the metal clips lower surface, makes that the utility model is convenient to be pressed, and well guarantees to push feel, and presses the back and be difficult for producing misoperation.The utility model directly is provided with air slot on non-drying glue layer, do not increase product thickness, can make product accomplish ultra-thinization.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 locates local amplification profile structural representation for the utility model contact.
Fig. 2 faces structural representation for the utility model back side.
Fig. 3 is the utility model metal clips structure schematic diagram.
Among the figure, 1-substrate, 2-adhesive sticker, 3-metal clips, 4-diaphragm, 5-salient point, 6-contact, 7-air slot.
Embodiment
Present embodiment is the utility model preferred implementation, and other all its principles are identical with present embodiment or approximate with basic structure, all within the utility model protection range.
Please referring to accompanying drawing 1 and accompanying drawing 2, the substrate 1 that the utility model main body is made for one deck plastic material, in the present embodiment, substrate 1 adopts the PET material to make, substrate 1 is provided with groove, the shape of groove and size match with metal clips 3 sizes and the shape that are installed in this groove, make metal clips 3 be installed in the groove after, just all contact with substrate 1.For narrate and understand conveniently, clear, in the present embodiment, the one side that metal clips 3 is contacted with substrate 1 is defined as the upper surface of metal clips 3, is defined as the lower surface of metal clips 3 on the other hand; The one side that substrate 1 is contacted with metal clips 3 is orientated the back side of substrate 1 as, is defined as the front of substrate 1 on the other hand.In the present embodiment, at first determine the position of metal dome switches upper contact, leave the special-purpose hard contact mould of a cover by this position, arrange in one mould, four caves or six caves, promptly a mould once can be processed four or six metal dome switches, adopt defoamer that the bubble in the UV glue is eliminated then, with adhesive dripping machine UV glue is evenly splashed into mould, UV glue promptly is applied on the substrate 1, after the UV stove solidifies, UV glue hardened forming is attached on the positive top layer of PET corresponding to groove centre position formation salient point 5 after mould comes off behind the pet sheet layer.On substrate 1 back side, print adhesive sticker 2 then, during printing adhesive sticker 2, be reserved with the air slot 7 that is used for air guide at non-drying glue layer, air slot 7 is used for when mounting the utility model, can derive wherein air by air slot 7, metal clips 3 upper surfaces are bonded in the groove on the substrate 1 by adhesive sticker 2.Please referring to accompanying drawing 3, in the present embodiment, metal clips 3 lower surfaces are provided with four contacts 6 to lower process, and when metal clips 3 was depressed, it is tightr that contact 6 can make metal clips 3 and pcb board fit, and makes its conductive effect better.In order to make the more convenient transportation of the utility model, preservation, be fitted with layer protecting film 4 at substrate 1 back side, the substrate 1 of one or more band metal clipss 3 of can fitting on every diaphragm 4.
The utility model can be widely used in the various mobile phone of the prior art.
Claims (6)
1, a kind of mobile phone metal dome switches; comprise substrate and be fitted in on-chip metal clips; it is characterized in that: described substrate is a plastic film; plastic film is provided with the groove that matches with the metal clips shape; metal clips is combined in the groove on the plastic film by pressure sensitive adhesive; the plastic film back up has non-drying glue layer, is fitted with diaphragm on the non-drying glue layer.
2, mobile phone metal dome switches according to claim 1 is characterized in that: described non-drying glue layer is provided with the air slot that is communicated with the adjacent metal shell fragment.
3, mobile phone metal dome switches according to claim 1 and 2 is characterized in that: described plastic film front is provided with salient point corresponding to the metal clips centre position.
4, mobile phone metal dome switches according to claim 1 and 2 is characterized in that: described metal clips lower surface is provided with outstanding contact downwards.
5, mobile phone metal dome switches according to claim 4 is characterized in that: described contact is provided with four, and four contacts distribute about metal clips center axial symmetry.
6, mobile phone metal dome switches according to claim 1 and 2 is characterized in that: the material of described plastic film is PET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202124780U CN201278323Y (en) | 2008-10-21 | 2008-10-21 | Metal thin film switch for mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202124780U CN201278323Y (en) | 2008-10-21 | 2008-10-21 | Metal thin film switch for mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201278323Y true CN201278323Y (en) | 2009-07-22 |
Family
ID=40895912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202124780U Expired - Lifetime CN201278323Y (en) | 2008-10-21 | 2008-10-21 | Metal thin film switch for mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201278323Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015003422A1 (en) * | 2013-07-12 | 2015-01-15 | Hong Guishun | Membrane switch leather case keyboard |
-
2008
- 2008-10-21 CN CNU2008202124780U patent/CN201278323Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015003422A1 (en) * | 2013-07-12 | 2015-01-15 | Hong Guishun | Membrane switch leather case keyboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The streets of Shenzhen city in Guangdong Province, 518000 Oi Kwan road Baoan District Shiyan with rich industrial area two building two floor Patentee after: Hong Guishun Address before: The streets of Shenzhen city in Guangdong Province, 518000 Oi Kwan road Baoan District Shiyan with rich industrial area two building two floor Patentee before: Shenzhen Huichuangda Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090722 |
|
| CX01 | Expiry of patent term |