CN111968876B

CN111968876B - Household high-voltage vacuum circuit breaker

Info

Publication number: CN111968876B
Application number: CN202010979692.4A
Authority: CN
Inventors: 孙礼建; 孙平
Original assignee: Anhui Puzhong Electromechanical Co ltd
Current assignee: Anhui Puzhong Electromechanical Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2022-06-28
Anticipated expiration: 2040-09-17
Also published as: CN111968876A

Abstract

The invention discloses a household high-voltage vacuum circuit breaker, and relates to the technical field of high-voltage vacuum circuit breakers. The invention comprises a housing; a static contact and a moving contact are arranged in the shell; the inner bottom surface of the shell is fixedly connected with a first guide cylinder and a second guide cylinder; the static contact is fixed in the fixed mount; the fixed frame is of a cylinder structure, and a first cavity for accommodating the static contact is formed in the fixed frame; the fixed frame is provided with an annular limiting groove for limiting the movement of the movable frame on the peripheral side; the moving contact is fixed in the movable frame; the movable frame is of a cover body structure, and a second cavity for accommodating the moving contact is formed in the movable frame; a support ring is formed at the opening of the movable frame; the inner wall of the support ring is in sliding fit with the annular limiting groove; the movable frame is connected with a driving component. The invention solves the problems of low assembly efficiency and poor stability of an actuating mechanism caused by a plurality of parts of the existing high-voltage vacuum circuit breaker by the action of the fixed frame, the movable frame and the driving assembly.

Description

Household high-voltage vacuum circuit breaker

Technical Field

The invention belongs to the technical field of high-voltage vacuum circuit breakers, and particularly relates to a household high-voltage vacuum circuit breaker.

Background

The breaker is a switch device which can close, bear and break the current under the condition of a normal loop and can close, bear and break the current under the condition of an abnormal loop within a specified time. The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum, and has the advantages of small volume, light weight and suitability for frequent operation, thereby being widely used. The high-voltage vacuum circuit breaker is used for connecting or disconnecting a load circuit and is a core device in a high-voltage switch cabinet, a ring main unit and a transformer box. However, the existing high-voltage vacuum circuit breaker has more parts, low assembly efficiency and troublesome operation and control, so that maintenance personnel are inconvenient to overhaul and operate, and the stability of an actuating mechanism of the high-voltage vacuum circuit breaker is poor.

Disclosure of Invention

The invention aims to provide a household high-voltage vacuum circuit breaker, which solves the problems of low assembly efficiency and poor stability of an actuating mechanism caused by a plurality of parts of the conventional high-voltage vacuum circuit breaker through the action of a fixed frame, a movable frame and a driving assembly.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a household high-voltage vacuum circuit breaker, which comprises a shell; a static contact and a moving contact are arranged in the shell; the inner bottom surface of the shell is fixedly connected with a first guide cylinder and a second guide cylinder; the fixed contact is fixed in the fixed frame; the fixed frame is of a cylinder structure, and a first cavity for accommodating the static contact is formed in the fixed frame; the fixed frame is provided with an annular limiting groove for limiting the movement of the movable frame on the peripheral side; the moving contact is fixed in the movable frame; the movable frame is of a cover body structure, and a second cavity for accommodating the moving contact is formed in the movable frame; a support ring is formed at the opening of the movable frame; the inner wall of the support ring is in sliding fit with the annular limiting groove; the movable frame is connected with a driving assembly.

Further, a first elastic piece is matched with the inner wall of the first guide cylinder; a second elastic piece is matched with the inner wall of the second guide cylinder; the first elastic piece and the second elastic piece are both of spring structures.

Furthermore, a pair of guide holes is formed in the top wall of the annular limiting groove; the upper surface of the support ring is fixedly connected with a pair of guide posts; the guide post is connected with the inner wall of the guide hole in a sliding mode.

Furthermore, a third elastic piece is sleeved on the peripheral side surface of the guide post and matched with the top wall in the annular limiting groove; the third elastic piece is a compression spring.

Furthermore, the lower surface of the movable frame is fixedly connected with a rectangular frame which is transversely arranged; the bottom of the rectangular frame is fixedly connected with a first sliding rod; the first sliding rod is connected with the inner wall of the second guide cylinder in a sliding mode.

Further, a second sliding rod is fixedly connected to the lower surface of the movable frame; the second sliding rod is connected with the inner wall of the first guide cylinder in a sliding mode.

Furthermore, the driving component is a motor with a circular plate fixed at one output end; the edge of the circular plate is fixedly connected with a limiting column; the limiting column is matched with the inner wall of the rectangular frame.

The invention has the following beneficial effects:

1. the third elastic piece is sleeved on the peripheral side surface of the guide post, so that the movement of the movable frame is convenient to buffer and absorb shock; through guide post and guiding hole inner wall sliding connection, be convenient for fix a position the direction to the motion of adjustable shelf for the moving contact can steady up-and-down motion.

2. The second sliding rod is connected with the inner wall of the first guide cylinder in a sliding manner, so that the movement of the movable frame and the movable contact is further guided, the separation and the contact of the movable contact are assisted, and the movement stability is improved.

3. According to the invention, the limiting column is matched with the inner wall of the rectangular frame, and the driving assembly works to drive the limiting column to rotate, so that the rectangular frame and the movable frame are driven to move up and down, the moving contact and the static contact are separated and contacted, the control is simple, and the parts are few.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a household high-voltage vacuum circuit breaker according to the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-shell, 2-fixed contact, 3-fixed support, 4-movable support, 5-driving component, 6-movable contact, 101-first guide cylinder, 102-second guide cylinder, 103-first elastic piece, 104-second elastic piece, 301-annular limiting groove, 302-guide hole, 401-support ring, 402-guide column, 403-third elastic piece, 404-rectangular support, 405-first slide bar, 406-second slide bar and 501-limiting column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention is a household high voltage vacuum circuit breaker, including a housing 1; a static contact 2 and a moving contact 6 are arranged in the shell 1; a first guide cylinder 101 and a second guide cylinder 102 are fixedly connected to the inner bottom surface of the shell 1; the static contact 2 is fixed in the fixed mount 3; the fixed frame 3 is of a cylinder structure, and a first cavity for accommodating the static contact 2 is formed in the fixed frame 3; the fixed frame 3 is provided with an annular limiting groove 301 for limiting the movement of the movable frame 4 on the peripheral side; the moving contact 6 is fixed in the movable frame 4; the movable frame 4 is a cover body structure, and a second cavity for accommodating the movable contact 6 is formed in the movable frame 4; a support ring 401 is formed at the opening of the movable frame 4; the inner wall of the support ring 401 is in sliding fit with the annular limiting groove 301; the movable frame 4 is connected with a driving assembly 5.

Preferably, as shown in fig. 1, a first elastic member 103 is fitted to an inner wall of the first guide cylinder 101; a second elastic piece 104 is matched with the inner wall of the second guide cylinder 102; the first elastic member 103 and the second elastic member 104 are each of a spring structure.

Preferably, as shown in fig. 1, the inner top wall of the annular limiting groove 301 is provided with a pair of guide holes 302; a pair of guide posts 402 are fixedly connected to the upper surface of the support ring 401; the guide post 402 is slidably connected to the inner wall of the guide hole 302, so as to facilitate positioning and guiding the movement of the movable frame 4, and enable the movable contact 6 to move up and down stably.

Preferably, as shown in fig. 1, a third elastic member 403 is sleeved on the peripheral side surface of the guide post 402, and the third elastic member 403 is matched with the inner top wall of the annular limiting groove 301; the third elastic member 403 is a compression spring, which is convenient for buffering and damping the movement of the movable frame 4.

Preferably, as shown in fig. 1, a rectangular frame 404 arranged transversely is fixedly connected to the lower surface of the movable frame 4; the bottom of the rectangular frame 404 is fixedly connected with a first sliding rod 405; the first slide bar 405 is connected with the inner wall of the second guide cylinder 102 in a sliding manner, and the driving assembly 5 moves to drive the limiting column 501 to move left and right in the rectangular frame 404, so as to drive the movable frame 4 to move up and down.

Preferably, as shown in fig. 1, a second sliding rod 406 is fixedly connected to the lower surface of the movable frame 4; the second sliding rod 406 is slidably connected to the inner wall of the first guiding cylinder 101, so as to further guide the movement of the movable frame 4 and the movable contact 6, assist in separating and contacting the movable contact 6, and improve the stability of the movement.

Preferably, as shown in fig. 1, the driving assembly 5 is a motor with a circular plate fixed at one output end; the edge of the circular plate is fixedly connected with a limiting column 501; the limiting column 501 is matched with the inner wall of the rectangular frame 404, and the driving assembly 5 works to drive the limiting column 501 to rotate, so that the rectangular frame 404 and the movable frame 4 are driven to move up and down, the moving contact 6 is separated from and contacted with the static contact 2, the control is simple, and the number of parts is small.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A household high-voltage vacuum circuit breaker, comprising a housing (1); a static contact (2) and a moving contact (6) are arranged in the shell (1); the method is characterized in that:

a first guide cylinder (101) and a second guide cylinder (102) are fixedly connected to the inner bottom surface of the shell (1);

the static contact (2) is fixed in the fixed frame (3); the fixed frame (3) is of a cylinder structure, and a first cavity for accommodating the static contact (2) is formed in the fixed frame (3); the fixed frame (3) is provided with an annular limiting groove (301) on the peripheral side surface for limiting the movement of the movable frame (4);

the moving contact (6) is fixed in the movable frame (4); the movable frame (4) is of a cover body structure, and a second cavity for accommodating the movable contact (6) is formed in the movable frame (4); a support ring (401) is formed at the opening of the movable frame (4);

The inner wall of the support ring (401) is in sliding fit with the annular limiting groove (301);

the movable frame (4) is connected with a driving component (5);

the lower surface of the movable frame (4) is fixedly connected with a rectangular frame (404) which is transversely arranged; the bottom of the rectangular frame (404) is fixedly connected with a first sliding rod (405); the first sliding rod (405) is connected with the inner wall of the second guide cylinder (102) in a sliding manner;

the lower surface of the movable frame (4) is fixedly connected with a second sliding rod (406); the second sliding rod (406) is in sliding connection with the inner wall of the first guide cylinder (101);

the driving component (5) is a motor with a circular plate fixed at one output end; the edge of the circular plate is fixedly connected with a limiting column (501); the limiting column (501) is matched with the inner wall of the rectangular frame (404).

2. A household high-voltage vacuum circuit breaker according to claim 1, characterized in that the inner wall of the first guide cylinder (101) is fitted with a first elastic member (103); a second elastic piece (104) is matched with the inner wall of the second guide cylinder (102);

the first elastic piece (103) and the second elastic piece (104) are both of spring structures.

3. The household high-voltage vacuum circuit breaker according to claim 1 or 2, wherein the inner top wall of the annular limiting groove (301) is provided with a pair of guide holes (302);

A pair of guide posts (402) is fixedly connected to the upper surface of the support ring (401); the guide post (402) is connected with the inner wall of the guide hole (302) in a sliding mode.

4. A household high-voltage vacuum circuit breaker according to claim 3, characterized in that the peripheral side of the guide post (402) is sleeved with a third elastic member (403), and the third elastic member (403) is matched with the inner top wall of the annular limiting groove (301); the third elastic member (403) is a compression spring.