CN217158028U

CN217158028U - Contact of isolating switch

Info

Publication number: CN217158028U
Application number: CN202221069616.0U
Authority: CN
Inventors: 包志铧
Original assignee: Zhejiang Yinde Electrical Alloy Co ltd
Current assignee: Zhejiang Yinde Electrical Alloy Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-08-09
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a connect more stable isolator contact. The technical scheme adopted comprises the following steps: the bridge-type contact comprises a bridge-type contact and contacts arranged at two ends of the bridge-type contact, wherein two ends of the bridge-type contact are integrally formed with raised electric contact parts, and the electric contact parts are riveted with the contacts through riveting holes in the ends. The advantages are that: 1. the two ends of the contact are provided with the protruding electric contact parts which are integrally formed, and then the contact is riveted on the electric contact parts.

Description

Contact of isolating switch

Technical Field

The utility model relates to an isolator contact.

Background

An isolating switch (isolating switch) is a switching device mainly used for isolating a power supply and switching over, connecting and cutting off a small current circuit, and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have insulation distance meeting the specified requirements and obvious disconnection marks; a switching device capable of carrying current in normal loop conditions and current in abnormal conditions (e.g., short circuit) for a specified period of time when in the closed position. The conductive part of the breakpoint isolating switch mainly comprises a moving contact and a fixed contact, so that the electrical contact performance between the moving contact and the fixed contact is a main factor related to the product quality. The disconnector contact structure comprises: a bridge contact and contacts riveted at both ends of the contact (as shown in fig. 5). Because the contact and the contact are independent parts, how to improve the stability of connection between the contact and the contact directly influences the electrical performance of a product. The traditional contact is directly riveted on a flat contact, and the isolating switch is switched on and off for a long time, so that poor contact between the moving contact and the static contact is easily caused; in addition, the contact of the contact and the connection position of the contact is not tight enough, the resistance is large, the passing of current is influenced, and further the electrical performance of the product is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a connect more stable isolator contact.

In order to solve the above problem, the utility model discloses a technical scheme include: bridge type contact and setting are in the contact at contact both ends, its characterized in that: and the two ends of the contact are integrally formed with raised electric contact parts, and the electric contact parts are riveted with the contact through riveting holes at the end parts.

The isolating switch contact is characterized in that: the contact comprises a copper spherical protruding part, a first riveting column integrally formed with the lower end of the spherical protruding part and a conductive silver layer wrapped on the surface of the spherical protruding part, and the contact is fixedly riveted with the riveting hole of the electric contact part through the first riveting column.

The isolating switch contact is characterized in that: the riveting hole is internally provided with an internal thread, the first riveting column is provided with an external thread, and the first riveting column is in threaded connection with the internal thread of the riveting hole through the external thread and then is riveted and fixed.

The isolating switch contact is characterized in that: the conductive silver layer and the spherical convex part are fixedly connected in a die cavity through a silver wire and a copper wire in an extruding mode respectively.

The isolating switch contact is characterized in that: and a second riveting column is integrally formed in the middle of the back surface of the contact.

The isolating switch contact is characterized in that: and the contact is integrally formed with a positioning salient point corresponding to two sides of the second riveting column.

The isolating switch contact is characterized in that: the length of the electrical contact is 1/4 of the total length of the contact.

The isolating switch contact is characterized in that: the positioning salient points are in strip shapes.

The isolating switch contact is characterized in that: the contact is a moving contact or a static contact.

The utility model discloses an isolator contact advantage: 1. the two ends of the contact are provided with the electric contact parts which are integrally formed with the bulges, and then the contact is riveted on the electric contact parts, so that the deformation of the contact can be prevented after the structure is adopted, and the contact between the moving contact and the static contact is more stable; 2. the riveting post is riveted and fixed after being connected with the internal thread of the riveting hole through the external thread, and the surface material of the riveting post can be embedded into the electric contact part after being crimped, so that very tight connection can be realized, and the connection strength and the electric conductivity can be further improved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic view of the connection between the contact head and the contact point of the present invention;

fig. 2 is a schematic structural view of the contact of the present invention;

fig. 3 is a schematic structural diagram of the contact of the present invention;

figure 4 is a cross-sectional view of the contact of the present invention;

fig. 5 is a schematic view of a conventional contact structure.

Detailed Description

As shown in fig. 1 to 4, the disconnecting switch contact of the present invention includes: the contact comprises a bridge-type contact 1 and contacts 2 arranged at two ends of the contact 1. The contact 1 is made of copper bars. The two ends of the contact 1 are integrally formed with raised electric contact parts 3 through die stamping, and the electric contact parts 3 are riveted with the contacts 2 through riveting holes 4 at the ends. It is desirable that the height of the protrusion of the electrical contact part 3 is 2/3 times the thickness of the contact 1. The contact 1 can be used as a moving contact or a fixed contact, but the best structure is used as the moving contact of the isolating switch.

Preferably, the contact 2 includes a copper spherical protruding portion 5, a first riveting column 6 integrally formed with a lower end of the spherical protruding portion 5, and a conductive silver layer 7 wrapped on a surface of the spherical protruding portion 5. The contact 2 is riveted and fixed with the riveting hole 4 of the electric contact part 3 through the first riveting column 6. The conductive silver layer 7 is wrapped on the surface of the spherical convex part 5, so that the electric energy performance of the contact 2 can be improved.

Preferably, an internal thread 8 is arranged in the riveting hole 4, an external thread 9 is arranged on the first riveting column 6, and the first riveting column 6 is in threaded connection with the internal thread 8 of the riveting hole 4 through the external thread 9 and then is riveted and fixed, so that the contact 2 and the contact 1 are connected more tightly.

Preferably, the conductive silver layer 7 and the spherical convex part 5 are fixedly connected in a die cavity by silver wires and copper wires in an extrusion manner, so that the connection between the conductive silver layer 7 and the spherical convex part 5 is more compact. The extrusion mode of the die is the existing connection process, and details are not described herein. According to the requirement, the conductive silver layer 7 and the spherical convex part 5 can also be connected and fixed by adopting a welding or electroplating connection process and the like.

Preferably, a second rivet post 10 is integrally formed in the middle of the back surface of the contact 1. And positioning salient points 11 are integrally formed on two sides of the contact 1 corresponding to the second riveting columns 10. Through the riveting of the second riveting column 10 and the contact mounting piece in the isolating switch, after riveting, two positioning salient points 11 are embedded into the positioning grooves of the contact mounting piece, so that the connection between the contact 1 and the contact mounting piece is more stable. The positioning salient points 11 are ideally in a strip shape, and the strip shape can be in a long oval shape, a long conical shape, a rectangular shape or the like, so that the connection stability is further improved.

Preferably, the length of the electrical contact part 3 is 1/4 of the total length of the contact 1, so that the stability of the contact 1 reaches the optimal state.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included within the protection scope of the present invention.

Claims

1. A disconnector contact comprising: bridge type contact (1) and set up contact (2) at contact (1) both ends, its characterized in that: the two ends of the contact (1) are integrally formed with raised electric contact parts (3), and the contact (2) is riveted through riveting holes (4) formed in the end parts of the electric contact parts (3).

2. The disconnect switch contact of claim 1, wherein: the contact (2) comprises a copper spherical protruding portion (5), a first riveting column (6) integrally formed with the lower end of the spherical protruding portion (5) and a conductive silver layer (7) wrapped on the surface of the spherical protruding portion (5), and the contact (2) is fixedly riveted with a riveting hole (4) of the electric contact portion (3) through the first riveting column (6).

3. The disconnect switch contact of claim 2, wherein: internal threads (8) are arranged in the riveting holes (4), external threads (9) are arranged on the first riveting columns (6), and the first riveting columns (6) are in threaded connection with the internal threads (8) of the riveting holes (4) through the external threads (9) and then are riveted and fixed.

4. The disconnect switch contact of claim 2, wherein: the conductive silver layer (7) and the spherical protruding part (5) are fixedly connected in a die cavity through silver wires and copper wires in an extruding mode respectively.

5. The disconnect switch contact of claim 1, wherein: and a second riveting column (10) is integrally formed in the middle of the back surface of the contact (1).

6. The disconnect switch contact of claim 5, wherein: and positioning salient points (11) are integrally formed on the two sides of the contact (1) corresponding to the second riveting column (10).

7. The disconnect switch contact of claim 1, wherein: the length of the electric contact part (3) is 1/4 of the total length of the contact (1).

8. The disconnect switch contact of claim 6, wherein: the positioning salient points (11) are in strip shapes.

9. The disconnector contact of any one of claims 1-8, wherein: the contact (1) is a moving contact or a fixed contact.