CN210429642U

CN210429642U - One-way phase-isolated grounding switch structure

Info

Publication number: CN210429642U
Application number: CN201921431420.XU
Authority: CN
Inventors: 孔莹莹; 李�真; 吕敏
Original assignee: SHANDONG ALFADACHI ELECTRIC CO LTD
Current assignee: SHANDONG ALFADACHI ELECTRIC CO LTD
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-04-28
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses an one-way isolated earthing switch structure, which comprises a shell, wherein the upper end, the lower end and the side surface of the shell are both provided with openings, each opening is sealed by a separation blade, the separation blades at the upper end, the lower end and the side surface of the shell are respectively fixed with an isolation static contact, a grounding static contact and a supporting contact base, and the isolation static contact, the grounding static contact and the supporting contact base are fixedly connected with the separation blades through insulators; the side of the supporting contact seat, which is far away from the insulator, is provided with a longitudinal cavity, a moving contact is arranged in the cavity, and the moving contact can move up and down along the inner wall of the cavity and can be respectively abutted against an isolation static contact above the moving contact and a grounding static contact below the moving contact. The utility model discloses save double-phase, saved a large amount of costs, reduced the time of work, alleviateed staff's work load, increased the commonality of product.

Description

One-way phase-isolated grounding switch structure

Technical Field

The utility model relates to a high tension switchgear technical field, concretely relates to one-way isolated earthing switch structure.

Background

Currently, a single-phase isolation grounding switch and a single-phase PT installation form in a 126kV voltage class are replaced by a three-phase isolation grounding switch and a single-phase PT (shown in figures 1 and 2). The structure is complex, the field installation is very troublesome, a large amount of cost is consumed, the production and the assembly of products are not facilitated, and the labor and the time are wasted.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides an one-way isolated earthing switch structure to reduce cost reduces on-the-spot installation work load.

The utility model discloses a realize through following technical scheme:

a unidirectional isolated grounding switch structure comprises a shell, wherein openings are formed in the upper end, the lower end and the side surface of the shell, each opening is sealed by a separation blade, an isolated static contact, a grounding static contact and a supporting contact base are respectively fixed on the separation blades on the upper end, the lower end and the side surface of the shell, and the isolated static contact, the grounding static contact, the supporting contact base and the separation blades are fixedly connected through insulators; the side of the supporting contact seat, which is far away from the insulator, is provided with a longitudinal cavity, a moving contact is arranged in the cavity, and the moving contact can move up and down along the inner wall of the cavity and can be respectively abutted against an isolation static contact above the moving contact and a grounding static contact below the moving contact.

Preferably, the isolation static contact and the grounding static contact are both provided with a groove, and the moving contact can extend into the groove.

Preferably, the housing is of a vertical cylindrical structure.

Preferably, the isolation static contact and the grounding static contact are both located at the center of the blocking sheet.

Preferably, the movable contact is vertically arranged in the cavity.

The beneficial effects of the utility model are embodied in: the utility model discloses an one-way isolated earthing switch structure adopts the combination of single-phase isolation static contact, moving contact and ground connection static contact to replace the combination of original three-phase isolation static contact, moving contact and ground connection static contact, has saved double-phase, has saved a large amount of costs, has reduced the time of work, has alleviateed staff's work load, has increased the commonality of product.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 and 2 are schematic structural diagrams of a conventional isolated grounding switch structure;

fig. 3 is a schematic structural diagram of an unidirectional isolated grounding switch structure according to an embodiment of the present invention.

In the attached drawing, 1 is an isolation static contact, 2 is a moving contact, 3 is a grounding static contact, 4 is a supporting contact seat, 5 is an insulator, and 6 is a shell.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

For ease of description, spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The unidirectional isolated grounding switch structure of the embodiment comprises a shell 6, wherein openings are formed in the upper end, the lower end and the side surface of the shell 6, each opening is sealed by a baffle, an isolated static contact 1, a grounded static contact 3 and a supporting contact base 4 are respectively fixed on the baffles on the upper end, the lower end and the side surface of the shell 6, and the isolated static contact 1, the grounded static contact 3, the supporting contact base 4 and the baffles are fixedly connected through insulators; a longitudinal cavity is arranged on one side, away from the insulator 5, of the supporting contact seat 4, a moving contact 2 is arranged in the cavity, and the moving contact 2 can move up and down along the inner wall of the cavity and can be respectively abutted against an isolation static contact 1 above the moving contact and a grounding static contact 3 below the moving contact.

In this embodiment, the isolation static contact 1 and the grounding static contact 3 are both provided with a groove, and the moving contact 2 can extend into the groove.

In this embodiment, the housing 6 has a vertical cylindrical structure. The isolation static contact 1 and the grounding static contact 3 are both positioned in the center of the blocking piece. The moving contact 2 is vertically arranged in the cavity.

The one-way isolated grounding switch structure is mainly applied to electrical equipment with a voltage level of 126 KV.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides an one-way isolated earthing switch structure, includes shell (6), and the upper and lower both ends and the side of shell (6) all are equipped with the opening, and every beginning all adopts the separation blade to seal its characterized in that: the isolating static contact (1), the grounding static contact (3) and the supporting contact seat (4) are respectively fixed on the blocking pieces at the upper end, the lower end and the side surface of the shell (6), and the isolating static contact (1), the grounding static contact (3) and the supporting contact seat (4) are fixedly connected with the blocking pieces through insulators; one side of the supporting contact seat (4) far away from the insulator (5) is provided with a longitudinal cavity, a moving contact (2) is arranged in the cavity, and the moving contact (2) can move up and down along the inner wall of the cavity and can be respectively abutted against an isolating static contact (1) above the moving contact and a grounding static contact (3) below the moving contact.

2. A unidirectional phase-isolating grounding switch structure as claimed in claim 1, wherein: grooves are formed in the isolation static contact (1) and the grounding static contact (3), and the moving contact (2) can extend into the grooves.

3. A unidirectional phase-isolating grounding switch structure as claimed in claim 1, wherein: the shell (6) is of a vertical cylindrical structure.

4. A unidirectional phase-isolating grounding switch structure as claimed in claim 3, wherein: the isolation static contact (1) and the grounding static contact (3) are both positioned in the center of the blocking piece.

5. A unidirectional phase-isolating grounding switch structure as claimed in claim 4, wherein: the moving contact (2) is vertically arranged in the cavity.