CN203721508U

CN203721508U - Silver contact

Info

Publication number: CN203721508U
Application number: CN201420006877.7U
Authority: CN
Inventors: 范康康
Original assignee: Electrical Equipment Alloy Industrial Co Ltd Of Wenzhou Tie Tong
Current assignee: Electrical Equipment Alloy Industrial Co Ltd Of Wenzhou Tie Tong
Priority date: 2014-01-02
Filing date: 2014-01-02
Publication date: 2014-07-16
Anticipated expiration: 2024-01-02

Abstract

The utility model discloses a silver contact. The silver contact comprises a column-shaped connection body and a contact body which are integrally arranged; the radius of the contact body is smaller than that of the connection body; the center of one end face, opposite to the connection body, of the contact body protrudes outwards to form a round male face; the round male face is provided with a silver coating; an annular raised edge is disposed around the edge of the round male face; and the axial height of the round male face is larger than that of the annular raised edge. The silver contact provided by the utility model has the characteristics of being stable in contact and capable of avoiding bad contact or open circuit.

Description

A kind of silver contact

Technical field

The utility model relates to a kind of field of switches, and more particularly, it relates to a kind of silver contact.

Background technology

Silver contact extensively refers to the disconnection of electronic apparatus and when closed, be separated from each other and the intersection point contacting, because metallic conductor terminal easily produces heating and the spark of moment in the moment of contact, impel its contact point in the multi-frequency process using, easily produce oxidation and electrolysis, so its contact point is strengthened to thickening, or adopt high-molecule metal manufacture (taking copper and silver-colored bi-material as many), so, just the contact point of this being made with high-molecule metal, or strengthening with same material the point of thickening is called silver contact.

At present, silver contact on market, it comprises and is connector and the contact that column is wholely set, the radius of described contact is greater than the radius of connector, and the center outwardly convex of the other end of its relative connector forms rounded convex, and described rounded convex is provided with silver coating.This silver contact separates and contacts although can complete, but the volume of considering silver contact is very little, the rounded convex of contact is also very little, in the time of silver contact butt in rounded convex and sheet metal or other conducting end, can cause the rounded convex butt place skew dislocation of two silver contacts if shake or while clashing into, the phenomenon that causes circuit loose contact or open circuit.

Utility model content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of silver contact, contact stabilization, the phenomenon of avoiding loose contact or opening circuit.

For achieving the above object, the utility model provides following technical scheme:

A kind of silver contact, comprise and be connector and the contact that column is wholely set, the radius of described contact is greater than the radius of connector, and the center outwardly convex of the other end of its relative connector forms rounded convex, described rounded convex is provided with silver coating, the edge of described rounded convex is provided with convex annular edge along rounded convex, and the axial height of described rounded convex is greater than the axial height on convex annular edge.

By adopting technique scheme, the upper surface of described contact is for better contact, change a contact into by face contact, point contact is higher for the required precision of installing, two silver contacts are excessive or while there are vibrations in extruding force mutually, the rounded convex of two silver contacts can be offset, cause loose contact, the effect of its landing is avoided in the setting on convex annular edge, convex annular is along arranging with rounded convex concentric and forming for the gap of placing with rounded convex, in the time there is skew in two rounded convex, the rounded convex being in contact with it can be stuck in rounded convex and convex annular along in the gap forming, convex annular stops its skew landing along blocking rounded convex, the axial height that the axial height of described rounded convex is greater than convex annular edge is in order to allow two silver contacts not be subject to convex annular along affecting in the time normally contacting, this utility model has contact stabilization, can avoid rocking or impact and cause two silver contact dislocation, and then the feature that causes loose contact or open circuit.

The utility model is further set to: described convex annular is along being wholely set with contact.

By adopting technique scheme, because convex annular is along all less with rounded convex volume, dividing is arranged causes difficulty to production, and exradius is consistent with contact radius, and this structure is saved material, reduces production costs.

The utility model is further set to: described convex annular is along being provided with chip removal mouth.

By adopting technique scheme, rounded convex is at the long-time coke or other the tiny medium that produce of using, and these tiny media can be discharged from chip removal mouth.

The utility model is further set to: described chip removal mouth arranges multiple.

By adopting technique scheme, on convex annular edge, multiple chip removal mouths are set, can all directions discharge tiny media particle, improve chip removal effect, ensure the stability of contact.

Brief description of the drawings

Fig. 1 is the vertical view of a kind of silver contact embodiment of the utility model;

Fig. 2 is the front view of a kind of silver contact embodiment of the utility model;

Fig. 3 is the stereogram of a kind of silver contact embodiment of the utility model.

In figure: 1, contact; 11 rounded convex; 12, convex annular edge; 121, chip removal mouth; 2, silver coating.

Embodiment

Referring to figs. 1 through Fig. 3, a kind of silver contact embodiment of the utility model is described further.

A kind of silver contact, comprise and be connector and the contact 1 that column is wholely set, the radius of described contact 1 is greater than the radius of connector, and the center outwardly convex of the other end of its relative connector forms rounded convex 11, described rounded convex 11 is provided with silver coating 2, the edge of described rounded convex 11 is provided with convex annular along 12 along rounded convex, the axial height of described rounded convex 11 is greater than the axial height of convex annular along 12, the upper surface of described contact 1 is for better contact, change a contact into by face contact, point contact is higher for the required precision of installing, two silver contacts are excessive or while there are vibrations in extruding force mutually, the rounded convex 11 of two silver contacts can be offset, cause loose contact, convex annular is avoided the effect of its landing along 12 setting, convex annular forms for the gap of placing with rounded convex 11 concentric settings and with rounded convex 11 along 12, in the time there is skew in two rounded convex 11, the rounded convex being in contact with it can be stuck in rounded convex 11 with convex annular along in the gap of 12 formation, convex annular is blocked rounded convex 11 along 12 and is stoped its skew landing, it is in order to allow two silver contacts not affected along 12 by convex annular in the time normally contacting along 12 axial height that the axial height of described rounded convex 11 is greater than convex annular, this utility model has contact stabilization, can avoid rocking or impact and cause two silver contact dislocation, and then the feature that causes loose contact or open circuit.

Described convex annular is wholely set with contact 1 along 12, because convex annular is along 12 all less with rounded convex 11 volumes, point is arranged and causes difficulty to production, and exradius is consistent with contact 1 radius, and this structure saving material, reduces production costs.

Described convex annular is provided with chip removal mouth 121 along 12, and rounded convex 11 is at the long-time coke or other the tiny medium that produce of using, and these tiny media can be discharged from chip removal mouth 121.

Described chip removal mouth 121 arranges multiple, multiple chip removal mouths 121 is set in convex annular on along 12, can all directions discharge tiny media particle, improves chip removal effect, ensures the stability of contact.

The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. a silver contact, comprise and be connector and the contact that column is wholely set, the radius of described contact is greater than the radius of connector, and the center outwardly convex of the other end of its relative connector forms rounded convex, described rounded convex is provided with silver coating, it is characterized in that: the edge of described rounded convex is provided with convex annular edge along rounded convex, the axial height of described rounded convex is greater than the axial height on convex annular edge.

2. a kind of silver contact according to claim 1, is characterized in that: described convex annular is along being wholely set with contact.

3. a kind of silver contact according to claim 2, is characterized in that: described convex annular is along being provided with chip removal mouth.

4. a kind of silver contact according to claim 3, is characterized in that: described chip removal mouth arranges multiple.