CN203192608U - Special-shaped metal sheet and rubber composite conductive particle - Google Patents
Special-shaped metal sheet and rubber composite conductive particle Download PDFInfo
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- CN203192608U CN203192608U CN 201120365203 CN201120365203U CN203192608U CN 203192608 U CN203192608 U CN 203192608U CN 201120365203 CN201120365203 CN 201120365203 CN 201120365203 U CN201120365203 U CN 201120365203U CN 203192608 U CN203192608 U CN 203192608U
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- metal sheet
- profiled metal
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- sheet material
- grain
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Abstract
The utility model provides a special-shaped metal sheet and rubber composite conductive particle. According to the special-shaped metal sheet and rubber composite conductive particle, a special-shaped metal sheet is bonded and composited with a rubber matrix so as to form the special-shaped metal sheet and rubber composite conductive particle. The outer surface of the special-shaped metal sheet is processed through mechanical, physical or chemical methods, and a rugged structure is formed on the surface of the special-shaped metal sheet, wherein the rugged structure comprises protruding lines, recessed lines, protruding surfaces, recessed surfaces, convexes, concave bodies or holes, or combinations thereof or combinations of protruding points or recessed points; and an adhesive layer can be additionally arranged between the special-shaped metal sheet and the rubber matrix. The structure of the outer surface of the metal sheet is of great variation, and can satisfy the requirement for visual differences and the requirement for personalized designs, and there are various methods for molding the structure; the contact between a metal layer surface of an obtained conductive particle and a circuit board is excellent, and the metal layer surface has favorable conductivity, and the bonding between the metal layer surface and the rubber matrix is reliable; and the product can be widely used as conductive contact members of various types of keys.
Description
Technical field
The utility model relates to the matching used conductive component of button, refers in particular to a kind of have convex line bar or the isostructural profiled metal sheet material of concave bar and the compound conduction grain that makes of rubber matrix.
Background technology
Assortment of keys such as mobile phone, computer, calculator, automobile are when installing and using, and backing has electric conductivity to conduct electricity grain preferably below it, so that button when pressing, contacts and the conducting interlock circuit with integrated circuit.
The application number of the applicant application is that the specification of 201110193369.5 " pitted skin profiled metal sheet conduction grain " discloses the conduction grain that a metalloid surface layer and rubber matrix are composited, it is metal faced to have concave point or salient point, can form relatively excellent contact with circuit.But metal faced selection is wide excessively, can not guarantee all to have good anti-corrosion or conductance.The selection of rubber substrate is also wide excessively, can not guarantee that the conduction grain has favorable conductive stability and useful life.
The specification of " metal covering and rubber combined conduction grain " that the applicant is to be applied for discloses the conduction grain that metallic nickel sheet material with salient point or concave point and rubber matrix are composited; its metal covering material and surface configuration restriction are strict; lack the situation that combination changes; imitated for colleague's malice easily, make this patent right partly lose protective effect.
The utility model content
The utility model purpose:
Overcome the dull and very different defective of other performances of disclosed metal covering composite conducting grain electric conductivity instability, outward appearance, the profiled metal sheet of provide a kind of and conduct electricity very well, cosmetic variation is various and rubber combined conduction.
Technical scheme:
Profiled metal sheet of the present utility model conduction grain and rubber combined conduction grain, employing metal sheet and rubber matrix is bonding is composited.Metal sheet is the profiled metal sheet material, and the outer surface of profiled metal sheet material obtains through the processing of mechanical means, physical method or chemical method, is formed with irregular structure on its outer surface; Irregular structure comprises convex line bar, concave bar, convex surface, concave surface, convex body, concaver or hole, perhaps their combination in any.
In the utility model, can also include the combination of salient point or concave point in the described irregular structure.
The irregular structure on the surface of described metal sheet, can be to process with the method for machinery to obtain, used mechanical means comprises: adopt methods such as routlette embossing, the mold pressing of employing mould, the calendering of employing calender, the roll extrusion of employing edge knurling machine, mechanical engraving, mechanical drawing, machinery grind.Also can be that method with physics obtains, used physical method comprises: methods such as laser-induced thermal etching, plasma etching, electrospark engraving, water injection, sandblast, vacuum coating, metal thermal spraying, welding.Perhaps can be that method with chemistry obtains, used chemical method comprises: methods such as chemical etching, plating, electroforming, chemical vapour deposition (CVD).With the combination of these methods, also can the irregular structure of preparation surface.For example, in the method for copper sheet with vacuum coating, then, the method with chemical etching etches concave bar or concave surface at the nickel sedimentary deposit.
Described salient point refers to protrude from the point-like projection of profiled metal sheet surface, and concave point refers to be depressed in the point-like hole of profiled metal sheet surface, and the area of each salient point or concave point is less than 1mm
2Described convex line bar refers to protrude from the linear projection of profiled metal sheet surface, and the concave bar refers to be depressed in the linear hole of profiled metal sheet surface, and the length of convex line bar or concave bar generally can be greater than 1mm; Convex surface refers to protrude from the curved surface shape projection of profiled metal sheet surface, concave surface refers to be depressed in the curved surface shape hole of profiled metal sheet surface, convex body refers to protrude from the curved body shape projection of profiled metal sheet surface, and concaver refers to be depressed in the curved body shape hole of profiled metal sheet surface.Described hole refers to penetrate the hole of profiled metal sheet material.
Described salient point, concave point, convex line bar, concave bar, convex surface, concave surface, convex body, concaver or hole form before profiled metal sheet material and rubber matrix are compound or after compound.These destroy the shape of each geometry of metal sheet surface smoothing planarization, can be identical, also can be different.
Described irregular structure is regularly or irregularly, continuously or intermittently, is interconnecting or be separated from each other on the outer surface that is distributed in the profiled metal sheet material, perhaps also has on the inner surface that is distributed in the profiled metal sheet material.
Described regular referring to according to certain order arranged, the arrangement of arranging, keeping straight on special patterns such as arrangement, diagonal arrangement, aplysia punctata arrangement, concentric circles arrangement, the shape of reporting to the leadship after accomplishing a task arrangement, latticed arrangement, wave arrangement such as evenly arranged evenly, symmetric arrays, matrix; The described random non-well-regulated mixed and disorderly arrangement that refers to.
Between described profiled metal sheet material and the rubber matrix polymeric bonding material layer can be arranged in addition, this macromolecular material is different with the rubber matrix material.The inner surface of described profiled metal sheet material can have the coupling agent priming coat that strengthens the adhesive property effect, and then bonds together with rubber matrix.
Metal sheet and rubber substrate compound also can be used the heating and mould pressing method of forming or rolling-molding method, the perhaps method that is coated with at metal sheet with rubber solutions or liquid rubber.The preferred heating and mould pressing method of forming, because the equipment that this method is used is simpler, the properties of product controllability is good.
The material of described profiled metal sheet material can be that thickness is the sheet material of aluminium, copper, silver, gold, iron, chromium, tin, zinc, nickel, molybdenum, tungsten, platinum or the rhodium of 0.0025mm to 2.5mm, or the alloy sheet material of above-mentioned metal.
The outer surface of described profiled metal sheet material can have one deck, two-layer or multiple layer metal coating, improves decay resistance, electric conductivity, anti-wear performance etc.
Described rubber matrix can be natural rubber or synthetic rubber, and rubber matrix is silicon rubber colourless or that have color preferably.
Beneficial effect: of the present utility model metal facedly contact with wiring board conducts electricity very well.The outer surface of metal sheet changes many, both can satisfy the requirement of the sight equation opposite sex, and also designing requirement that can be satisfying personalized, and manufacturing process is various, and is reliable with the bonding combination process of rubber matrix.The profiled metal sheet material and rubber combined after can Punching Technology the conduction grain of circular or other shape.Such conduction grain can be widely used as the conductive contact member of assortment of keys backing.
Description of drawings
Accompanying drawing is a kind of stereochemical structure of the present utility model and part section structural representation.
Among the figure: 1, profiled metal sheet material; 2, convex line bar; 3, concave bar; 4, convex body; 5, concaver; 6, hole; 7, salient point; 8, concave point; 9, adhesive linkage; 10, rubber matrix; 11, coating.
Embodiment
The metal sheet of choosing is profiled metal sheet material 1, and the outer surface of profiled metal sheet material 1 has passed through the processing of mechanical means, physical method or chemical method, has formed irregular structure on its outer surface; Irregular structure comprises convex line bar 2, concave bar 3, convex surface, concave surface, convex body 4, concaver 5 or hole 6, and perhaps their combination in any can also include the combination of salient point 7 or concave point 8.Profiled metal sheet material 1 and rubber matrix 10 is bonding compound, constitute profiled metal sheet and rubber combined conduction grain as shown in drawings.
Embodiment 1:
The irregular structure on the surface of described profiled metal sheet material 1 is that the method processing with the machinery of routlette embossing obtains.
Described salient point 7, concave point 8, convex line bar 2, concave bar 3, convex body 4, concaver 5 or hole 6 formed before profiled metal sheet material and rubber matrix are compound.
Described irregular structure is that symmetric arrays is on the outer surface of profiled metal sheet material 1.
Between described profiled metal sheet material 1 and the rubber matrix 10 polymeric bonding material layer 9 is arranged in addition, this macromolecular material is different with rubber matrix 10 materials.The inner surface of described profiled metal sheet material 1 can have the priming coat that strengthens the adhesive property effect, and then bonds together with rubber matrix 10.
The material of described profiled metal sheet material 1 is aluminium alloy.
The outer surface of described profiled metal sheet material 1 has layer of metal silvering 11, to improve electric conductivity and decay resistance.
Described rubber matrix 10 is polyurethane synthetic rubber.
Embodiment 2:
The irregular structure on the surface of described profiled metal sheet material 1 is to obtain with the method for the physics of laser-induced thermal etching and the chemical method of chemical vapour deposition (CVD).
The formation after profiled metal sheet material 1 and rubber matrix 10 are compound of described salient point 7, concave point 8, convex line bar 2, concave bar 3, convex body 4, concaver 5 or hole 6.
Described irregular structure is the mixed and disorderly arrangement of random finger.
Organic and/or inorganic materials adhesive linkage 9 in addition between described profiled metal sheet material 1 and the rubber matrix 10.
The material of described profiled metal sheet material 1 is copper, and the outer surface of profiled metal sheet material 1 has the coating 11 of one deck nickel and one deck titanium, to improve decay resistance.
Described rubber matrix 10 is silicon rubber.
Claims (9)
1. a profiled metal sheet and rubber combined conduction grain adopts metal sheet and bonding being composited of rubber matrix (10), and it is characterized in that: metal sheet is profiled metal sheet material (1), and the outer surface of profiled metal sheet material (1) is formed with irregular structure; Irregular structure comprises convex line bar (2), concave bar (3), convex surface, concave surface, convex body (4), concaver (5) or hole (6).
Profiled metal sheet according to claim 1 and rubber combined conduction the grain, it is characterized in that: also comprise salient point (7) or concave point (8) in the described irregular structure, the area of each salient point or concave point is less than 1mm
2
Profiled metal sheet according to claim 1 and 2 and rubber combined conduction the grain, it is characterized in that: described irregular structure is regularly or irregularly, continuously or intermittently, is interconnecting or be separated from each other on the outer surface that is distributed in profiled metal sheet material (1), perhaps also has on the inner surface that is distributed in profiled metal sheet material (1); Described regular refer to evenly arranged evenly, symmetric arrays, matrix arrange, keep straight on arrange, diagonal is arranged, aplysia punctata is arranged, concentric circles is arranged, the shape of reporting to the leadship after accomplishing a task is arranged, latticed arrangement or wave are arranged.
4. profiled metal sheet according to claim 1 and rubber combined conduction grain is characterized in that: between described profiled metal sheet material (1) and the rubber matrix (10) adhesive linkage (9) is arranged in addition.
Profiled metal sheet according to claim 1 and rubber combined conduction the grain, it is characterized in that: the inner surface of described profiled metal sheet material (1) has the coupling agent priming coat.
6. according to claim 1,4 or 5 described profiled metal sheets and rubber combined conduction grain, it is characterized in that: described profiled metal sheet material (1) is that thickness is the sheet material of aluminium, copper, silver, gold, iron, chromium, tin, zinc, nickel, molybdenum, tungsten, platinum or the rhodium of 0.0025mm to 2.5mm, or the alloy sheet material of above-mentioned metal.
Profiled metal sheet according to claim 6 and rubber combined conduction the grain, it is characterized in that: the outer surface of described profiled metal sheet material (1) has one deck, two-layer or multiple layer metal coating (11).
8. according to claim 1 or 4 described profiled metal sheets and rubber combined conduction grain, it is characterized in that: described rubber matrix (10) is natural rubber or synthetic rubber.
Profiled metal sheet according to claim 8 and rubber combined conduction the grain, it is characterized in that: described rubber matrix (10) is silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120365203 CN203192608U (en) | 2011-09-28 | 2011-09-28 | Special-shaped metal sheet and rubber composite conductive particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120365203 CN203192608U (en) | 2011-09-28 | 2011-09-28 | Special-shaped metal sheet and rubber composite conductive particle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203192608U true CN203192608U (en) | 2013-09-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120365203 Expired - Fee Related CN203192608U (en) | 2011-09-28 | 2011-09-28 | Special-shaped metal sheet and rubber composite conductive particle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203192608U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700517A (en) * | 2013-12-31 | 2014-04-02 | 南通万德科技有限公司 | Switch contact element and preparation method thereof |
| CN105097306A (en) * | 2014-05-06 | 2015-11-25 | 徐跃 | Switch contact resisting large current and manufacturing method thereof |
| CN109920661A (en) * | 2019-03-15 | 2019-06-21 | 东莞市诒茂电子科技有限公司 | Double-sided metal reticulated conductive grain and key with double-sided metal reticulated conductive grain |
-
2011
- 2011-09-28 CN CN 201120365203 patent/CN203192608U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700517A (en) * | 2013-12-31 | 2014-04-02 | 南通万德科技有限公司 | Switch contact element and preparation method thereof |
| CN103700517B (en) * | 2013-12-31 | 2015-10-07 | 南通万德科技有限公司 | Switch contact element and preparation method thereof |
| CN105097306A (en) * | 2014-05-06 | 2015-11-25 | 徐跃 | Switch contact resisting large current and manufacturing method thereof |
| CN109920661A (en) * | 2019-03-15 | 2019-06-21 | 东莞市诒茂电子科技有限公司 | Double-sided metal reticulated conductive grain and key with double-sided metal reticulated conductive grain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130911 Termination date: 20190928 |