CN219979433U

CN219979433U - Solid-sealed polar pole with concave spherical contact seat

Info

Publication number: CN219979433U
Application number: CN202321045748.4U
Authority: CN
Inventors: 水俊哲; 王华璟
Original assignee: Xingji Electric Appliance Co ltd
Current assignee: Xingji Electric Appliance Group Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-11-07
Anticipated expiration: 2033-04-27

Abstract

The utility model provides a solid-sealed polar pole with a concave spherical contact seat, which comprises an insulating shell, a wiring terminal and a vacuum arc-extinguishing chamber arranged in the insulating shell, wherein the vacuum arc-extinguishing chamber comprises a static end and a movable end which are positioned at two ends of the vacuum arc-extinguishing chamber; the concave spherical contact seat provided by the utility model is provided with the hemispherical cambered surface which is concave inwards, and can be used for installing the moving contact of the isolating switch, so that the moving contact and the concave spherical contact seat form spherical electric contact, and the three-station isolating switch and the pole of the circuit breaker form reliable electric contact in application.

Description

Solid-sealed polar pole with concave spherical contact seat

Technical Field

The utility model relates to the technical field of power switching equipment, in particular to a solid-sealed polar pole with a concave spherical contact seat.

Background

The solid-sealed polar pole is one of main components in the high-voltage circuit breaker, and is an integral component formed by simultaneously embedding a vacuum arc-extinguishing chamber and related conductive parts of the circuit breaker into an insulating shell, wherein the insulating shell is made of solid insulating materials such as epoxy resin and the like, and a static terminal connecting part and a movable terminal connecting terminal are arranged on the insulating shell.

For example, the patent of CN210668203U issued for bulletin number provides a solid-sealed pole, which comprises a housing, wherein an upper outgoing line, a lower outgoing line, a flexible connection line and a vacuum arc-extinguishing chamber are arranged in the housing, the lower outgoing line is connected with one end of the flexible connection line, the other end of the flexible connection line is connected with the upper outgoing line through the vacuum arc-extinguishing chamber, a wiring part is arranged on the upper outgoing line, the wiring part is arranged in a space vertical to the vacuum arc-extinguishing chamber, and the top end of the wiring part is an arc surface; the utility model has the characteristics of uniform electric field distribution, difficult discharge and the like in the electrifying process.

The utility model improves on the basis of the conventional solid-sealed polar pole, so that the solid-sealed polar pole of the circuit breaker is more reliably electrically connected with the isolating switch.

Disclosure of Invention

The utility model aims to overcome the defects and the shortcomings in the prior art and provide a solid-sealed polar pole with a concave spherical contact seat, which adopts the following technical scheme:

the utility model provides a solid seal utmost point post with concave sphere contact seat, includes insulating housing, binding post, sets up the vacuum interrupter in insulating housing, the vacuum interrupter is including the quiet end and the movable end that are located its both ends, the quiet end of vacuum interrupter is connected with the contact seat that extends to outside the insulating housing, the contact seat includes the concave sphere contact seat that has the hemisphere cambered surface of inwards sunken.

The concave spherical contact seat provided by the scheme can be provided with the isolating switch moving contact, and the moving contact and the concave spherical contact seat form spherical electric contact, so that the three-station isolating switch and the pole of the circuit breaker form reliable electric contact.

Furthermore, concave spherical contact seats are arranged on the front surface and the back surface of the contact seat.

Preferably, the concave spherical contact seat is provided with a through hole, and the through hole penetrates through the bottom of the concave spherical contact seat.

Preferably, the contact base further comprises a connecting part positioned at the periphery of the concave spherical contact base, one end of the connecting part, which is close to the shell, is wedge-shaped, and one end, which is far away from the shell, is provided with an arc outer end face.

Preferably, a conductive rod is arranged at the movable end of the vacuum arc extinguishing chamber, and the conductive rod is connected with the wiring terminal through a conductive belt.

Preferably, the vacuum arc extinguishing chamber and the wiring terminal are mutually perpendicular, one end of the conductive belt is connected with the conductive rod, and the other end of the conductive belt is detachably connected with the wiring terminal.

Preferably, the vacuum arc extinguishing chamber, the contact seat and the wiring terminal are integrally molded through die casting by an epoxy resin APG process.

The beneficial effects of the utility model are as follows: the concave spherical contact seat provided by the utility model is provided with the hemispherical cambered surface which is concave inwards, and can be used for installing the moving contact of the isolating switch, so that the moving contact and the concave spherical contact seat form spherical electric contact, and the three-station isolating switch and the pole of the circuit breaker form reliable electric contact in application.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.

FIG. 1 is a schematic overall structure of embodiment 1;

FIG. 2 is a cross-sectional view of example 1;

FIG. 3 is a top view of example 1;

FIG. 4 is a cross-sectional view taken along the A-A plane in FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4;

in the figure, a 1-insulating shell, a 2-contact seat, a 21-concave spherical contact seat, a 22-through hole, a 23-connecting part, a 3-wiring terminal, a 4-vacuum arc extinguishing chamber and a 5-conductive belt.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

The terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "side", etc. used in the present utility model refer to the direction or position of the drawings. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1-5, a solid sealed pole with a concave spherical contact seat comprises an insulating shell 1, a wiring terminal 3 and a vacuum arc-extinguishing chamber 4 arranged in the insulating shell 1, wherein the vacuum arc-extinguishing chamber 4 comprises a static end and a movable end at two ends of the vacuum arc-extinguishing chamber, the static end of the vacuum arc-extinguishing chamber 4 is connected with a contact seat 2 extending out of the insulating shell 1, and the contact seat 2 comprises a concave spherical contact seat 21 with a hemispherical cambered surface which is concave inwards.

The concave spherical contact seat provided by the utility model can be provided with the movable contact of the isolating switch, and the movable contact and the concave spherical contact seat form spherical electric contact, so that the three-station isolating switch and the pole of the circuit breaker form reliable electric contact.

Further, concave spherical contact seats 21 are arranged on the front surface and the back surface of the contact seat 2.

The concave spherical contact seat 21 is provided with a through hole 22, and the through hole 41 penetrates through the bottom of the concave spherical contact seat 4.

The contact seat 2 further comprises a connecting portion 23 located at the periphery of the concave spherical contact seat 21, one end, close to the shell 1, of the connecting portion 23 is wedge-shaped, and one end, far away from the shell 1, of the connecting portion is provided with an arc outer end face.

The movable end of the vacuum arc-extinguishing chamber 4 is provided with a conducting rod, and the conducting rod is connected with the wiring terminal 3 through a conducting belt 5 and can be used for forming a primary main loop of the circuit breaker.

The vacuum interrupter 4 and binding post 3 mutually perpendicular set up, conducting strip 5 one end is connected with the conducting rod, and the other end is connected with binding post 3 can be dismantled.

The vacuum arc-extinguishing chamber 4, the contact base 2 and the wiring terminal 3 are integrally formed through die casting by an epoxy resin APG process.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a solid utmost point post that seals with concave sphere contact seat, includes insulating housing (1), binding post (3), sets up vacuum interrupter (4) in insulating housing (1), its characterized in that: the vacuum arc-extinguishing chamber (4) comprises a static end and a movable end which are positioned at two ends of the vacuum arc-extinguishing chamber, the static end of the vacuum arc-extinguishing chamber (4) is connected with a contact seat (2) which extends out of the insulating shell (1), and the contact seat (2) comprises a concave spherical contact seat (21) with an inwards concave hemispherical cambered surface.

2. The solid sealed pole with concave spherical contact base of claim 1, wherein: concave spherical contact seats (21) are arranged on the front surface and the back surface of the contact seat (2).

3. The solid sealed pole with concave spherical contact base of claim 1, wherein: the concave spherical contact seat (21) is provided with a through hole (22), and the through hole (22) penetrates through the bottom of the concave spherical contact seat (4).

4. The solid sealed pole with concave spherical contact base of claim 1, wherein: the contact seat (2) further comprises a connecting part (23) positioned at the periphery of the concave spherical contact seat (21), one end, close to the shell (1), of the connecting part (23) is wedge-shaped, and one end, far away from the shell (1), of the connecting part is provided with an arc outer end face.

5. The solid sealed pole with concave spherical contact base of claim 1, wherein: the movable end of the vacuum arc-extinguishing chamber (4) is provided with a conducting rod, and the conducting rod is connected with the wiring terminal (3) through a conducting belt (5).

6. The solid seal pole with concave spherical contact base of claim 5, wherein: the vacuum arc extinguishing chamber (4) is arranged perpendicular to the wiring terminal (3), one end of the conductive belt (5) is connected with the conductive rod, and the other end of the conductive belt is detachably connected with the wiring terminal (3).

7. The encapsulated pole with female spherical contact holder as claimed in any one of claims 1-6, wherein: the vacuum arc-extinguishing chamber (4), the contact base (2) and the wiring terminal (3) are integrally formed through die casting by an epoxy resin APG process.