CN211654597U

CN211654597U - Composite rivet contact

Info

Publication number: CN211654597U
Application number: CN202020851250.7U
Authority: CN
Inventors: 黄玲敏; 赵荣
Original assignee: Wenzhou Shengyin Electronic Co ltd
Current assignee: Wenzhou Shengyin Electronic Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-10-09
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses a compound rivet contact, its technical scheme main points are: the copper-based contact structure comprises a copper base, a first contact layer and a second contact layer, wherein the cross section of the copper base is circular, the first contact layer is fixedly arranged at the upper end of the copper base, the second contact layer is fixedly arranged at the lower end of the copper base, a check ring is fixedly arranged at the upper end of the first contact layer, a base is fixedly arranged at the upper end of the check ring, a plurality of salient points are fixedly arranged at the upper end of the base, a groove is formed at the lower end of the second contact layer, the cross section of the groove is circular, and a plurality of barbs facing obliquely upward are fixedly arranged outside the lower ends of the second contact layer and the; the utility model discloses a set up flutedly at the lower extreme on second contact layer, the rivet core of having solved current compound rivet contact is solid, penetrates behind the component that is linked, makes the problem that the component warp or ftracture easily, and the barb that sets up at the tip of rivet simultaneously can improve the stability of rivet after cooperating with the work piece.

Description

Composite rivet contact

Technical Field

The utility model belongs to the technical field of compound rivet contact technique and specifically relates to a compound rivet contact.

Background

The electric contact material is an element for contacting, breaking and connecting a circuit by mechanical action in a switching electric appliance. The electrical contacts are very complex in the opening and closing processes, and generally require high electrical conductivity, high thermal conductivity, good wear resistance, corrosion resistance, low and stable contact resistance, and the like. The electric contact is used as a core component in medium and high voltage switch equipment, plays the roles of breaking and conducting, is widely applied to various high voltage load switches, SF6 circuit breakers, on-load tap changers, large breaking capacity isolating switches and grounding switches, is mainly divided into a rivet type electric contact, a powder metallurgy contact, a sheet contact and the like, has good electric conductivity, is not easy to oxidize on the surface, has strong arc corrosion resistance, and is widely applied.

The composite rivet contact is a metal rod-shaped part with a cap at one end, after the composite rivet contact penetrates into a connected member, the other end of the composite rivet contact is punched and pressed out at the outer end of the rod to press and fix the member, and a rivet core of a normal composite rivet is solid, so that the member is easy to deform or crack after penetrating into the connected member.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing a composite rivet contact to the rivet core of solving the current composite rivet contact who mentions in the background art is solid, penetrates behind the component that is linked, makes the problem that the component warp or ftracture easily.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a compound rivet contact, includes copper base, first contact layer and second contact layer, the cross section of copper base is circular, the fixed first contact layer that is provided with in upper end of copper base, the fixed second contact layer that is provided with in lower extreme of copper base, the fixed retaining ring that is provided with in upper end on first contact layer, the fixed base that is provided with in upper end of retaining ring, the fixed a plurality of bumps that are provided with in upper end of base, the lower extreme on second contact layer is seted up flutedly, the cross section of recess is circular, the second contact layer with the lower extreme external fixation of copper base is provided with a plurality of barbs towards the top to one side.

Further, the copper base, the first contact layer and the second contact layer are integrally formed by forging and pressing.

Further, the tail portion of the second contact layer is tapered.

Further, the cross-sectional area of the retainer ring is larger than that of the first contact layer.

Furthermore, the salient points are cylindrical and are discretely distributed at the top end of the base at equal intervals.

To sum up, the utility model discloses mainly have following beneficial effect:

the utility model effectively ensures that the composite rivet contact has good conductive effect by arranging the copper base part, the first contact layer and the second contact layer; the top of the composite rivet contact is provided with a plurality of uniformly distributed salient points, so that the weldability of the contact can be improved, and when the contact is welded with alloys such as bimetallic strips, stainless steel and the like, the salient points enable the welding process to be simpler and more convenient and the welding to be firmer; the lower end of the second contact layer is provided with the groove, the groove is extruded to be turned outwards when the rivet is installed, the buckle is formed and fixed, meanwhile, the barb arranged at the end of the rivet can improve the stability of the rivet after being matched with a workpiece, and the problem that the rivet is easy to deform or crack after penetrating into a connected component is avoided.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view taken at a-a in fig. 1.

In the figure: 1. a copper base; 2. a first contact layer; 3. a second contact layer; 4. a retainer ring; 5. a base; 6. salient points; 7. a groove; 8. and barbs.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-2, a composite rivet contact comprises a copper base 1, a first contact layer 2 and a second contact layer 3, wherein the cross section of the copper base 1 is circular, the first contact layer 2 is fixedly arranged at the upper end of the copper base 1, the second contact layer 3 is fixedly arranged at the lower end of the copper base 1, the first contact layer 2 and the second contact layer 3 are silver composite layers, so that good conductivity of the contact is ensured, a retainer ring 4 is fixedly arranged at the upper end of the first contact layer 2, a base 5 is fixedly arranged at the upper end of the retainer ring 4, a plurality of salient points 6 are fixedly arranged at the upper end of the base 5, a groove 7 is formed at the lower end of the second contact layer 3, the cross section of the groove 7 is circular, the groove 7 is extruded and flanged outwards when the contact is installed to form a buckle for fixation, a plurality of barbs 8 which face obliquely upwards are fixedly arranged at the outer parts of the lower ends of the second contact layer 3 and the copper base 1, when the, the barb 8 can go deep into the inside of work piece, improves the stability behind rivet and the work piece cooperation.

Referring to fig. 1 and 2, the copper base 1, the first contact layer 2 and the second contact layer 3 are integrally formed by forging and pressing, which facilitates production and processing and ensures structural stability.

Referring to fig. 1 and 2, the tail of the second contact layer 3 is tapered to make the connection more reliable.

Referring to fig. 1 and 2, the cross-sectional area of the retainer ring 4 is larger than that of the first contact layer 2, and the contact looseness can be effectively prevented.

Referring to fig. 1 and 2, the bumps 6 are cylindrical, and the bumps 6 are discretely arranged at equal intervals on the top end of the base 5, so that the contact with other electrical components is firmer.

When the utility model is used, the copper base 1, the first contact layer 2 and the second contact layer 3 are arranged, so that the composite rivet contact is effectively ensured to have good conductive effect; the top of the composite rivet contact is provided with a plurality of uniformly distributed salient points 6, so that the weldability of the contact can be improved, and when the contact is welded with alloys such as bimetallic strips, stainless steel and the like, the salient points 6 enable the welding process to be simpler and more convenient and the welding to be firmer; set up fluted 7 through the lower extreme at second contact layer 3, when the installation recess 7 department is extrudeed outwards turn-ups, it is fixed to form the buckle, simultaneously at barb 8 that the tip of rivet set up, when recess 7 department is extruded outwards turn-ups, barb 8 can go deep into the inside of work piece, improves the stability behind rivet and the work piece cooperation, has avoided the rivet to penetrate behind the component that is linked, makes the problem that the component warp or ftracture easily.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite rivet contact comprising a copper base (1), a first contact layer (2) and a second contact layer (3), characterized in that: the cross section of copper basal portion (1) is circular, the fixed first contact layer (2) that is provided with in upper end of copper basal portion (1), the fixed second contact layer (3) that is provided with in lower extreme of copper basal portion (1), the fixed retaining ring (4) that is provided with in upper end of first contact layer (2), the fixed base (5) that is provided with in upper end of retaining ring (4), the fixed a plurality of bumps (6) that are provided with in upper end of base (5), the lower extreme on second contact layer (3) is seted up flutedly (7), the cross section of recess (7) is circular, second contact layer (3) with the lower extreme external fixation of copper basal portion (1) is provided with barb (8) of a plurality of orientation oblique tops.

2. A composite rivet contact according to claim 1, wherein: the copper base (1), the first contact layer (2) and the second contact layer (3) are integrally formed by forging and pressing.

3. A composite rivet contact according to claim 1, wherein: the tail part of the second contact layer (3) is conical.

4. A composite rivet contact according to claim 1, wherein: the cross-sectional area of the retainer ring (4) is larger than that of the first contact layer (2).

5. A composite rivet contact according to claim 1, wherein: the salient points (6) are cylindrical, and the salient points (6) are discretely distributed at equal intervals at the top end of the base (5).