CN201732698U - Three-layer button type electric contact - Google Patents
Three-layer button type electric contact Download PDFInfo
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- CN201732698U CN201732698U CN2010200375118U CN201020037511U CN201732698U CN 201732698 U CN201732698 U CN 201732698U CN 2010200375118 U CN2010200375118 U CN 2010200375118U CN 201020037511 U CN201020037511 U CN 201020037511U CN 201732698 U CN201732698 U CN 201732698U
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- tin oxide
- electric contact
- silver
- contact
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Abstract
The utility model relates to a three-layer button type electric contact, wherein the contact surface of the electric contact is a silver tin oxide layer, the welding surface thereof is a Monel alloy layer, and a C1020 oxygen-free copper layer is arranged between the Monel alloy layer and the silver tin oxide layer; the silver tin oxide layer is a composite layer of a silver tin oxide belt and a silver belt; and the silver belt is positioned between the silver tin oxide layer and the C1020 oxygen-free copper layer. Due to the adoption of three-layer compounding, the using amount of Ag is greatly reduced, and the cost is controlled; the welding surface is made of Monel alloy and provided with small salient points so as to ensure good welding performance and lead the electric contact and the bimetallic strip to be firmly welded; in addition, poor strength is caused by combining the silver tin oxide and copper, for overcoming the defect, pure Ag is adopted as the transition layer so as to increase the bond strength between the silver tin oxide and the copper.
Description
Technical field
The utility model relates to a kind of electric component, specifically, relates to a kind of novel environment friendly high-performance silver/copper/three layers of button type electric contact of monel metal.
Background technology
Electrically contact and be meant between two conductors and be in contact with one another, and realize a kind of physics, the chemical phenomenon of current delivery or signal transmission by contact interface.Two conductors of delivered current or conveying signal are called contact or contact.Along with the continuous development of science and technology and industrial automation, the output and the kind of relay, contactor and switch increase by a wide margin, and the thing followed is growing with each passing day to the contact demand.Electric contact is the core parts of device for switching, it is the key factor that influences break-make transfer capabilities such as device for switching such as all kinds of air switch, relay, A.C. contactor and reliability, be widely used in all kinds of air switches, relay, low voltage electrical apparatus industries such as AC/DC contactor relate to every field such as civilian, industrial, military, space flight in the modern society, aviation, information.Electric contact in use is in frequent open and close state, and therefore very high to electric contact material electrical property and mechanical performance requirement, its main performance requires to have: good conductivity; Good resistance fusion welding; Anti-electrical wear is good; Contact resistance is low etc.
In electrical contact material, siller tin oxide (AgSnO2) material belongs to the environment-friendly type contact material, because it has anti-preferably electrical wear, resistance fusion welding and conductivity are used widely in low-voltage electrical apparatus.In process of production, can further reduce production costs again in order to ensure the electric contact material performance, silver-bearing copper iron three composite electric contact materials become the main product on the market.At present domestic aspect the composite contact material primary study bar of yellow gold and oxygen-free copper compound, face is compound (as Chongqing Chuanyi Factory No.1, Shanghai collection strong metal Industrial Co., Ltd).But all there are some shortcoming and defect in these composite electric contact materials at present.Therefore at first, the ductility of silver alloy, copper, iron, hardness and hot expansibility etc. all there are differences, and cause easily between each layer delamination occurring in conjunction with bad; Secondly present technology is when the thickness of each layer of control, and accuracy and repeatability still can not be controlled preferably, thereby cause present composite electric contact unstable properties, the useful life that directly causes the related device system.In the heating process in the technology, copper, iron are oxidized easily in addition, thereby cause bond strength to weld with bimetal leaf inadequately and with difficult, and the finished product rate is low, weld strength is low thereby cause, and has a strong impact on useful life.
Summary of the invention
The purpose of this utility model is to provide a kind of novel multilayer alloy composite electric contact at the problem of existing electric contact existence.
The utility model scheme is: a kind of three layers of button type electric contact, and the contact-making surface of described electric contact is the siller tin oxide layer, solder side is the monel metal layer, is C1020 oxygen-free copper layer between monel metal layer and siller tin oxide layer.
Preferably, described siller tin oxide layer is siller tin oxide band and silver band composite bed, and described silver band is between siller tin oxide layer and C1020 oxygen-free copper layer.
The beneficial effects of the utility model are: contact-making surface is AgSnO, has good electrical conductivity, anti-electrical wear and lower excellent electric performance such as contact resistance; But three layers compound after, the use amount of Ag reduces greatly, cost is under control; And solder side is a monel metal, and has small salient point, to guarantee good welding performance, can make electric contact and bimetal leaf firm welding; In addition because the use of transition zone, make between each layer in conjunction with tight, be difficult for delamination; Make earlier three kinds of metal composite bands, precise punch forming has again guaranteed the thickness of different metal layer, guarantee electric performance stablity, in addition, siller tin oxide and copper bond strength are relatively poor, for overcoming this defective, selected pure Ag as transition zone, strengthened the bond strength of siller tin oxide and copper.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is the bottom surface structural representation of the utility model specific embodiment.
Embodiment
Specific embodiment of the utility model as shown in Figures 1 and 2, a kind of three layers of button type electric contact, the contact-making surface of described electrical contact is the siller tin oxide layer, solder side is a monel metal layer 4, the bottom of monel metal layer 4 is provided with a plurality of salient points 5 of being convenient to strengthen the firm welding degree, be C1020 oxygen-free copper layer 3 between monel metal layer 4 and siller tin oxide layer 1, described siller tin oxide layer is that siller tin oxide band 1 and silver are with 2 composite bed silver to be with 2 between siller tin oxide band 1 and C1020 oxygen-free copper layer 3.
During manufacturing, at first with silver ingot by melting, the turning moulding, extruding, rolling, annealing, finished product is rolling, the itemize operation is made the silver band, then with silver powder and MeO powder process mechanical mixture, isostatic compaction, sintering, extrusion plate, rolling, annealing, finished product is rolling, the itemize operation prepares the siller tin oxide band, then that silver band and siller tin oxide band is compound by hot rolling, annealing, rolling, annealing, finished product is rolling, the itemize operation is made siller tin oxide band and silver band composite bed, at last, with the AgSnO/Ag composite bed, oxygen-free copper C1020 layer, the Monel alloy-layer is compound by hot rolling, annealing, surface clean, finished product is rolling, the itemize operation is made finished product.
Claims (3)
1. three layers of button type electric contact, it is characterized in that: described electric contact comprises the contact-making surface of siller tin oxide, the C1020 oxygen-free copper layer that closely links to each other with this contact-making surface, and the monel metal solder side that closely links to each other with this C1020 oxygen-free copper layer another side.
2. three layers of button type electric contact as claimed in claim 1 is characterized in that: described siller tin oxide layer is siller tin oxide band and silver band composite bed.
3. three layers of button type electric contact as claimed in claim 2 is characterized in that: described silver band is between siller tin oxide layer and C1020 oxygen-free copper layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200375118U CN201732698U (en) | 2010-01-04 | 2010-01-04 | Three-layer button type electric contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200375118U CN201732698U (en) | 2010-01-04 | 2010-01-04 | Three-layer button type electric contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201732698U true CN201732698U (en) | 2011-02-02 |
Family
ID=43523855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200375118U Expired - Fee Related CN201732698U (en) | 2010-01-04 | 2010-01-04 | Three-layer button type electric contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201732698U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761059A (en) * | 2017-09-27 | 2018-03-06 | 南京工业大学 | Electrical alloy component surface silver alloy layers and preparation method thereof, electrical alloy parts |
| CN108075275A (en) * | 2016-11-14 | 2018-05-25 | 泰连公司 | The electric connector of signal contact with plating |
| CN108493024A (en) * | 2018-05-22 | 2018-09-04 | 东北大学 | A kind of silver-tin electrical contact material and preparation method thereof |
| US11152729B2 (en) | 2016-11-14 | 2021-10-19 | TE Connectivity Services Gmbh | Electrical connector and electrical connector assembly having a mating array of signal and ground contacts |
-
2010
- 2010-01-04 CN CN2010200375118U patent/CN201732698U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075275A (en) * | 2016-11-14 | 2018-05-25 | 泰连公司 | The electric connector of signal contact with plating |
| US11108179B2 (en) | 2016-11-14 | 2021-08-31 | TE Connectivity Services Gmbh | Electrical connector with plated signal contacts |
| US11152729B2 (en) | 2016-11-14 | 2021-10-19 | TE Connectivity Services Gmbh | Electrical connector and electrical connector assembly having a mating array of signal and ground contacts |
| CN107761059A (en) * | 2017-09-27 | 2018-03-06 | 南京工业大学 | Electrical alloy component surface silver alloy layers and preparation method thereof, electrical alloy parts |
| CN107761059B (en) * | 2017-09-27 | 2020-01-31 | 南京工业大学 | Silver alloy coating on surface of electrical alloy part, preparation method of silver alloy coating and electrical alloy part |
| CN108493024A (en) * | 2018-05-22 | 2018-09-04 | 东北大学 | A kind of silver-tin electrical contact material and preparation method thereof |
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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 |
Granted publication date: 20110202 Termination date: 20130104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |