CN211507407U

CN211507407U - Electric contact for high-voltage distribution box

Info

Publication number: CN211507407U
Application number: CN202020607046.0U
Authority: CN
Inventors: 朱芳达
Original assignee: Ningbo Yingda Machinery Manufacturing Co ltd
Current assignee: Ningbo Yingda Machinery Manufacturing Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-09-15
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses an electrical contact for high tension switchgear, including static contact and moving contact, the moving contact is suitable for translation or rotates and advances the static contact for switching circuit, its characterized in that: the static contact comprises two elastic sheet assemblies which are symmetrically arranged, each elastic sheet assembly comprises a supporting section, a deformation section, a guiding section and a collision section, the supporting sections are fixedly arranged, the deformation sections are fixedly arranged at the top ends of the supporting sections, the deformation sections, the guiding sections and the collision sections are sequentially connected, the guiding sections are inclined from the outside to the inside from two sides to the middle, the collision sections on the two sides are parallel, and the inner sides of the collision sections are outwards sunken to form contact spherical surfaces; the contact ball is arranged at the top of the movable contact, the diameter of the contact ball is equal to that of the contact ball, and the ball centers of the contact balls on the two sides are overlapped. The device has the advantages of simple structure, good safety, long service life and low cost.

Description

Electric contact for high-voltage distribution box

Technical Field

The utility model relates to an electrical accessory field, concretely relates to electrical contact.

Background

The electrical contact is an important component of a high-voltage circuit breaker, a switch cabinet, an isolating switch and an earthing switch, and the performance of the electrical contact directly influences the quality and the service life of the high-voltage electrical appliances. When they are in contact, the circuit is closed, and the relative movement can open or close the circuit, or the circuit is closed by rotating or sliding the circuit. Especially, the electrical contact of the high-voltage distribution box plays an important role in safety and reliability of the electrical contact. However, the existing electrical contacts generally cannot be balanced in terms of safety and cost; electrical contacts that are safe and have a long service life tend to be expensive.

Accordingly, it would be desirable to provide an improved electrical contact that overcomes the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, the security is good, long service life, the high tension switchgear power consumption contact with low costs.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides an electrical contact for high tension switchgear, includes static contact and moving contact, the moving contact is suitable for translation or rotates and advances the static contact for switching circuit, its characterized in that: the static contact comprises two elastic sheet assemblies which are symmetrically arranged, each elastic sheet assembly comprises a supporting section, a deformation section, a guiding section and a collision section, the supporting sections are fixedly arranged, the deformation sections are fixedly arranged at the top ends of the supporting sections, the deformation sections, the guiding sections and the collision sections are sequentially connected, the guiding sections are inclined from the outside to the inside from two sides to the middle, the collision sections on the two sides are parallel, and the inner sides of the collision sections are outwards sunken to form contact spherical surfaces; the contact ball is arranged at the top of the movable contact, the diameter of the contact ball is equal to that of the contact ball, and the maximum distance between the contact balls on the two sides is slightly smaller than that of the contact ball.

As an improvement, the tail end of the abutting section is also connected with a reinforcing section, the reinforcing section inclines from the middle to two sides from inside to outside, and the tail end of the reinforcing section abuts against the inner side of the supporting section. The reinforcing section is mainly matched with the deformation section, so that the static contact has enough clamping force, and the reliability of the point contact is ensured; in addition, the reinforcing section also plays a supporting role, so that the static contact has higher strength, and the service life of the static contact is prolonged.

Furthermore, a sliding groove is formed in the inner side of the supporting section, and the tail end of the reinforcing section is located in the sliding groove. The spout has the limiting displacement to strengthening the section, makes it can only take place to deform along the length direction of spout, improves the stability of static contact.

Preferably, the supporting section is a copper bar, the deformation section, the guiding section, the abutting section and the reinforcing section are made of elastic metal which is integrally formed, and the deformation section is welded to the top end of the supporting section.

Compared with the prior art, the utility model has the advantages of: the scheme adopts the electric contact mode of spherical contact, so that the static contact and the moving contact have larger contact area, and the conductive performance of the static contact and the moving contact is ensured. In addition, due to the spherical contact, when the moving contact inclines or deflects, the contact ball body and the contact spherical surface can still be effectively contacted, so that the electric contact has a certain error correction function, and the safety of equipment is improved. It is worth mentioning that the deformation section and the reinforcement section are matched, so that the electric contact structure is more stable, the elasticity is more sufficient, and the service life is longer. In addition, the scheme does not need additional parts such as a spring and the like, and has the advantages of simple structure and low cost.

Drawings

Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention;

fig. 2 is a schematic perspective view of a movable contact according to a preferred embodiment of the present invention;

fig. 3 is a schematic perspective view of a stationary contact according to a preferred embodiment of the present invention;

fig. 4 is a front view of a stationary contact according to a preferred embodiment of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

As shown in fig. 1 to 4, the preferred embodiment of the present invention includes a static contact 100 and a moving contact 200, the moving contact 200 is suitable for translating or rotating in and out the static contact 100, and is used for switching on and off a circuit, the static contact 100 includes two symmetrical spring assemblies 1, the spring assembly 1 includes a supporting section 11, a deformation section 12, a guiding section 13 and an abutting section 14, the supporting section 11 is fixedly disposed, the deformation section 12 is fixedly disposed on the top end of the supporting section 11, the deformation section 12, the guiding section 13 and the abutting section 14 are sequentially connected, and the guiding section 13 is inclined from outside to inside from two sides to the middle, the abutting sections 14 on two sides are parallel, and the inside of the abutting section 14 is outwardly recessed to form a contact spherical surface 141; the contact ball 2 is arranged at the top of the movable contact 200, the diameter of the contact ball 141 is equal to the diameter of the contact ball 2, and the maximum distance between the contact balls 141 at the two sides is slightly smaller than the diameter of the contact ball 2. The tail end of the abutting section 14 is also connected with a reinforcing section 15, the reinforcing section 15 inclines from the middle to two sides from inside to outside, and the tail end of the reinforcing section 15 abuts against the inner side of the supporting section 11. Wherein, the inner side of the supporting section 11 is provided with a chute 111, and the tail end of the reinforcing section 15 is positioned in the chute 111.

In this embodiment, support section 11 and be the copper bar, deformation section 12, direction section 13, conflict section 14 and enhancement section 15 are integrated into one piece's elastic metal, and deformation section 12 welds in supporting the section top.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an electrical contact for high tension switchgear, includes static contact and moving contact, the moving contact is suitable for translation or rotates and advances the static contact for switching circuit, its characterized in that: the static contact comprises two elastic sheet assemblies which are symmetrically arranged, each elastic sheet assembly comprises a supporting section, a deformation section, a guiding section and a collision section, the supporting sections are fixedly arranged, the deformation sections are fixedly arranged at the top ends of the supporting sections, the deformation sections, the guiding sections and the collision sections are sequentially connected, the guiding sections are inclined from the outside to the inside from two sides to the middle, the collision sections on the two sides are parallel, and the inner sides of the collision sections are outwards sunken to form contact spherical surfaces; the contact ball is arranged at the top of the movable contact, the diameter of the contact ball is equal to that of the contact ball, and the maximum distance between the contact balls on the two sides is slightly smaller than that of the contact ball.

2. The electrical contact for a high-voltage distribution box according to claim 1, characterized in that: the tail end of the abutting section is also connected with a reinforcing section, the reinforcing section inclines from the middle to two sides from inside to outside, and the tail end of the reinforcing section abuts against the inner side of the supporting section.

3. The electrical contact for a high-voltage distribution box according to claim 2, characterized in that: the inner side of the supporting section is provided with a sliding groove, and the tail end of the reinforcing section is positioned in the sliding groove.

4. The electrical contact for a high-voltage distribution box according to claim 3, characterized in that: the supporting section is a copper bar, the deformation section, the guiding section, the abutting section and the reinforcing section are made of elastic metal which is integrally formed, and the deformation section is welded to the top end of the supporting section.