CN202549628U

CN202549628U - Rivet composite contact

Info

Publication number: CN202549628U
Application number: CN2012202122777U
Authority: CN
Inventors: 郑财威
Original assignee: WENZHOU YINYU ALLOY CO Ltd
Current assignee: WENZHOU YINYU ALLOY CO Ltd
Priority date: 2012-05-10
Filing date: 2012-05-10
Publication date: 2012-11-21
Anticipated expiration: 2022-05-10

Abstract

The utility model discloses a rivet composite contact which is characterized in that the rivet composite contact is of a double-layer structure and comprises a matrix; and the top end of the matrix is provided with a composite layer. The rivet composite contact disclosed by the utility model not only has the advantages of good electrical contact performance, high production efficiency and the like, but also has low production cost and good assembling accuracy reliability of components.

Description

A kind of rivet composite contact

Technical field

The utility model relates to a kind of rivet composite contact, belongs to the electric device field.

Background technology

The electrical contact element is a kind of low-pressure electronic equipment product and household electronic products such as switch, relay, thermostat, circuit breaker, contactor, controller, timer of being widely used in; The electrical contact element mainly contains three kinds: 1, riveted spare, with closing-up on copper spare; 2, weldment is welded on the sheet contact on the copper spare; 3, stamping parts becomes element with the composite band punching out.

Existing in the market rivet contact all is by precious metal usually; Like simple a kind of metal matrixes such as gold or silver, use and produce actual, this contact basis material is selected for use more single; Because its electrical contact performance receives the restriction of single metal material, its electrical contact performance is poor; And because metal purity is had certain requirement, production efficiency is low aborning, and production cost is higher, and the product that causes producing can't be sold on market and use on a large scale.

Summary of the invention

For overcoming the defective of prior art, the utility model discloses a kind of rivet composite contact, through the architecture advances to traditional contact, not only electrical contact performance is good to make it, and production cost is low, and good reliability is easy to apply.

For realizing the foregoing invention purpose, the utility model is realized through following technical scheme:

A kind of rivet composite contact is double-decker, comprises matrix, and said matrix top is provided with composite bed.

Wherein, the shape of composite bed, matrix does not receive special restriction, and preferred, said composite bed bottom surface is outer convex, fits in said matrix top and composite bed bottom surface.

It will be understood by those skilled in the art that above-mentioned described outer convex is meant the circular arc type shape of composite bed bottom surface for giving prominence to the matrix direction.This kind structure has effectively increased the contact area of matrix and composite bed, forms better electrical contact performance.

Wherein, said matrix is the T type.

The composite contact of the utility model, matrix, composite bed can adopt suitable material to process according to the needs of practical application, and preferred, said matrix is that metallic copper or copper alloy are processed, thereby guarantees conductivity and plasticity preferably.Said composite bed is that argent or silver alloy are processed, and has excellent electrical contact performance.

Through above-mentioned improvement, the rivet composite contact of the utility model, not only electrical contact performance is good, and production efficiency is high, and production cost is low, has effectively improved the assembly precision and the reliability of element, thus production application on a large scale.

The utility model the contact product adopt the powder metallurgic method preparation; Its composition, quality are easy to control than other process, have guaranteed the contact uniformity in product performance, and can be further through advanced flouring technologies such as the chemical coating method of utilization, coprecipitation, atomization, mechanical alloyings; Make other constituent particle refinements; And in evenly distribute copper or the copper alloy matrix,, improve the contact properties of product and be of great benefit to improving the metallographic structure of contact material; Can significantly improve the density of product, thereby improve the electrical property of contact material.Thereby be applied to various circuit breakers, line protection switch, failure current protection switch, earth leakage circuit-breaker, sliding brush etc.

In market, the acid bronze alloy environmental protection contact of the utility model has replaced contact products such as present general Agcdo, siller tin oxide, has solved the high problem of silver contact cost in the circuit breaker; Its cost is low, serviceability stable, is that products such as present circuit breaker, A.C. contactor, air switch use the first-selected contact product in the contact.

Description of drawings

Fig. 1 is the utility model structure chart.

Embodiment

With reference to figure 1, be the rivet composite contact of the utility model, comprise the matrix 2 of T type, be provided with composite bed 1 on matrix 2 tops, wherein the bottom surface that contacts with matrix 2 of composite bed 1 is the arc of evagination.

Wherein, matrix and composite bed combination are the welding fusion.

The product of the utility model has passed through each item tests such as 25kv breaking capacity, and qualified.

Above execution mode and accompanying drawing it will be appreciated by those skilled in the art that a kind of more excellent realization into the utility model; The improvement that those skilled in the art are carried out on this basis; The for example variation of shape, ratio, size, material etc. still belongs to the protection range of the utility model.

Claims

1. a rivet composite contact is characterized in that being double-decker, comprises matrix, and said matrix top is provided with composite bed.

2. rivet composite contact according to claim 1 is characterized in that said composite bed bottom surface is outer convex, fits in said matrix top and composite bed bottom surface.

3. rivet composite contact according to claim 1 is characterized in that said matrix is the T type.

4. rivet composite contact according to claim 1 is characterized in that said matrix is that metallic copper or copper alloy are processed.

5. rivet composite contact according to claim 1 is characterized in that said composite bed is that argent or silver alloy are processed.