CN202585145U

CN202585145U - Triplex contact made of pure copper and silver compound

Info

Publication number: CN202585145U
Application number: CN 201220149658
Authority: CN
Inventors: 乐平
Original assignee: NINGBO FREE TRADE ZONE SHENGYUE ELECTRIC ALLOY MATERIALS CO Ltd
Current assignee: NINGBO FREE TRADE ZONE SHENGYUE ELECTRIC ALLOY MATERIALS CO Ltd
Priority date: 2012-04-11
Filing date: 2012-04-11
Publication date: 2012-12-05
Anticipated expiration: 2022-04-11

Abstract

The utility model relates to a triplex contact made of pure copper and a silver compound. The triplex contact comprises a pure copper base body (2), a silver compound composite layer (1) and a contralateral composite layer (3). The pure copper base body (2) is formed by a head and a cylindrical foot part. The thickness of the head is larger than that of the cylindrical foot part. The silver compound composite layer (1) is combined with one end of the head of the pure copper base body (2) and forms a hemispherical shape with the head of the pure copper base body (2). The contralateral composite layer (3) is combined with one end of the cylindrical foot part of the pure copper base body (2). According to the utility model, the head is made of silver cadmium oxide material, thus the contact has good fusion welding resistance performance and good electrical wear resistance performance, and the contact mainly is applied to middle and large capacity relays, a contactor, alternating current and direct current switches and middle and small capacity breakers, and is especially suitable for middle and large capacity alternating current contactors.

Description

A kind of three composite contacts that adopt fine copper and silver compound

Technical field

The utility model relates to electronic devices and components and uses the field, contact, particularly relates to a kind of three composite contacts that adopt fine copper and silver compound.

Background technology

The contact is an element commonly used in the various electronic devices and components, and very high to its performance demands though its volume is little, composite contact has wide range of applications and usually uses precious metal material, generally adopts manual rivet and automatic riveting.Be composite contact in the market with fine silver; But fine silver intensity is low, hardness is low, resistance fusion welding and anti-electrical arc erosion performance are low; And consumption is big, cost an arm and a leg, and production cost is high, can only be applied in radio, communication with fields such as microswitch and little electric current electrical equipment.

The utility model content

The utility model technical problem to be solved provides a kind of three composite contacts that adopt fine copper and silver compound; Fine copper and the composite molding of Ag-ZnO material have been adopted; Production cost is low, and environment-protecting asepsis has anti-melting welding, anti-electrical wear property is good; Arcing time is short, and interrupting performance height, Chinese People's Anti-Japanese Military and Political College's rush of current ability and anti electric arc corrosion ability are strong.

The utility model solves the technical scheme that its technical problem adopted: a kind of three composite contacts that adopt fine copper and silver compound are provided; Comprise fine copper matrix, silver compound composite bed and offside composite bed; Described fine copper matrix is made up of head and cylindric foot; The thickness of described head is greater than the thickness of cylindric foot; The silver compound composite bed is compound in head one end of fine copper matrix and forms hemisphere with the head of fine copper matrix, and said offside composite bed is compound in cylindric foot one end of fine copper matrix.

The thickness of described head composite bed is 0.2mm～0.6mm, the thickness 0.2mm～0.6mm of described foot composite bed.

Described composite bed compound is Agcdo (AgCdO).

Described composite bed adopts advanced sintering, extrusion process that the cadmium oxide particle dispersion is distributed in to form Agcdo (AgCdO) in the silver matrix; Under arcing; The violent decomposition of cadmium oxide (CdO), evaporation make the contact surface cooling; Play the effect that reduces arc energy and blow-out, thereby make material have high resistance fusion welding, anti-electrical wear property and lower contact resistance.

Beneficial effect

The utility model relates to provides a kind of three composite contacts that adopt fine copper and silver compound; Fine copper and Agcdo composite molding have been adopted; Utilize the performance characteristics of Agcdo to make the contact have high resistance fusion welding, anti-electrical wear property and lower contact resistance; Be mainly used in big capacity relay, contactor, AC-DC switch and the middle low capacity circuit breaker big Capacity AC Contactor in being particularly suitable for.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

As shown in Figure 1; The execution mode of the utility model relates to a kind of three composite contacts that adopt fine copper and silver compound; Comprise fine copper matrix 2, silver compound composite bed 1 and offside composite bed 3; Described fine copper matrix 2 is made up of head and cylindric foot; The thickness of described head is greater than the thickness of cylindric foot, and silver compound composite bed 1 is compound in head one end of fine copper matrix 2 and forms hemisphere with the head of fine copper matrix 2, and said offside composite bed 3 is compound in cylindric foot one end of fine copper matrix 2.The thickness of described head composite bed and foot's composite bed is 0.2mm～0.6mm, and described composite bed compound is to be processed by Agcdo (AgCdO).

The main processing technology of the utility model is compound cold-heading; Adopt advanced sintering, extrusion process that the cadmium oxide particle dispersion is distributed in and form Agcdo in the silver matrix; Again with the silk material of Agcdo and two kinds of materials of fine copper under the cold headers impulsive force, two kinds of metals form radial plastic deformations and form the rammer shapes.

Claims

1. three composite contacts that adopt fine copper and silver compound; Comprise fine copper matrix (2), silver compound composite bed (1) and offside composite bed (3); It is characterized in that: described fine copper matrix (2) is made up of head and cylindric foot; The thickness of described head is greater than the thickness of cylindric foot; Silver compound composite bed (1) is compound in head one end of fine copper matrix (2) and forms hemisphere with the head of fine copper matrix (2), and said offside composite bed (3) is compound in cylindric foot one end of fine copper matrix (2).

2. a kind of three composite contacts that adopt fine copper and silver compound according to claim 1 is characterized in that the thickness of described head composite bed is 0.2mm～0.6mm, the thickness 0.2mm～0.6mm of described foot composite bed.

3. a kind of three composite contacts that adopt fine copper and silver compound according to claim 1 is characterized in that described composite bed compound is an Agcdo.