CN216435778U

CN216435778U - Vacuum arc extinguish chamber driving device and solid-sealed circuit breaker

Info

Publication number: CN216435778U
Application number: CN202123327322.1U
Authority: CN
Inventors: 束明亮
Original assignee: Jiangsu Hongda Electric Co ltd
Current assignee: Jiangsu Hongda Electric Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-03
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a vacuum arc extinguish chamber driving device and a solid-sealed circuit breaker, which comprises a central shaft, a driving piece, a positioning shaft and an elastic device; the positioning shaft penetrates through the bracket and the driving piece and is connected with the supporting plate; the elastic device is used for driving the arc extinguish chamber to move towards the disconnection direction, and the arc extinguish chamber mounting plate is used for being connected with the arc extinguish chamber; the driving piece is provided with a driving arc groove, the driving arc groove is connected with the central shaft, the distances from the arcs at the two ends of the driving arc groove to the positioning shaft are different, one end of the driving arc groove is close to the positioning shaft, and the other end of the driving arc groove is far from the positioning shaft. The joint of the central shaft and the driving piece is provided with a bearing, and the central shaft is in rolling connection with the driving arc groove through the bearing. The both sides of a set of support all are equipped with the driving piece, and two driving pieces use the support to set up as central symmetry. One end of the elastic device acts on the moving contact, and the other end of the elastic device is connected with the arc extinguish chamber mounting plate. The utility model discloses it is easy and simple to handle, the design is lower with the manufacturing degree of difficulty, and the arc extinguishing is efficient, effectively avoids the emergence of accident and accident, can use in batches.

Description

Vacuum arc extinguish chamber driving device and solid-sealed circuit breaker

Technical Field

The utility model relates to a gu seal circuit breaker technical field, concretely relates to vacuum interrupter drive arrangement and gu seal circuit breaker.

Background

The arc extinguish chamber is a core component of a medium-high voltage power switch, has the main functions of quickly extinguishing arc and inhibiting current after a medium-high voltage circuit is cut off a power supply, avoids accidents and accidents, and is mainly applied to a power transmission and distribution control system of electric power. The existing arc extinguish chamber has certain disadvantages in use, great design difficulty and manufacturing difficulty and short service life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vacuum interrupter drive arrangement and solid circuit breaker that seals solves current vacuum interrupter drive arrangement and the solid circuit breaker design degree of difficulty that seals and makes the degree of difficulty great, problem that life is low.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

a driving device of a vacuum arc extinguish chamber comprises a central shaft, a driving piece, a positioning shaft and an elastic device; the positioning shaft penetrates through the bracket and the driving piece and is connected to the supporting plate; the elastic device is used for driving the arc extinguish chamber to move towards the disconnection direction, and the arc extinguish chamber mounting plate is used for being connected with the arc extinguish chamber; the driving piece is provided with a driving arc groove, the driving arc groove is connected with the central shaft, the distances from arcs at two ends of the driving arc groove to the positioning shaft are different, one end of the driving arc groove is close to the positioning shaft, and the other end of the driving arc groove is far from the positioning shaft.

Preferably, in the vacuum arc-extinguishing chamber driving device, a bearing is arranged at a joint of the central shaft and the driving part, and the central shaft is in rolling connection with the driving arc groove through the bearing.

Preferably, in the vacuum interrupter driving device, driving parts are respectively arranged on two sides of the group of brackets, and the two driving parts are symmetrically arranged by taking the brackets as centers.

Preferably, in the vacuum interrupter driving device, the support is connected to the positioning shaft through a bolt, and the support is provided with a first branch and a second branch, which are respectively located on two sides of the central shaft.

Preferably, in the vacuum interrupter driving device, the end portions of the first branch and the second branch are provided with threaded holes for connecting with an equipment rack.

Preferably, in the vacuum interrupter driving device, the support is provided with a clamping groove for clamping the central shaft, and the clamping groove is matched with the moving contact in the telescopic direction.

Preferably, in the vacuum interrupter driving device, one end of the elastic device acts on the moving contact, and the other end of the elastic device is connected to the interrupter mounting plate.

Preferably, in the vacuum interrupter driving device, the bracket is connected to the positioning shaft through a square hole.

According to the above technical scheme, the utility model discloses following beneficial effect has: the utility model discloses it is easy and simple to handle, the design is lower with the manufacturing degree of difficulty, and the arc extinguishing is efficient, effectively avoids the emergence of accident and accident, can use in batches.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of a driving member of the present invention;

FIG. 3 is an enlarged schematic view of the driving member and the bracket of the present invention;

FIG. 4 is an enlarged schematic view of the driving member and the elastic device of the present invention;

the meaning of the reference numerals: 1. a central shaft; 11. a bearing; 2. a drive member; 21. driving the arc groove; 3. an arc extinguish chamber mounting plate; 4. positioning the shaft; 5. a support; 51. branching one; 52. a branch II; 53. a threaded hole; 54. a card slot; 6. a support plate; 7. an elastic device; 8. an arc extinguishing chamber; 81. a moving contact; 9. and (4) square holes.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 to 4, the utility model discloses a vacuum arc extinguish chamber driving device and a solid-sealed circuit breaker, which comprises a central shaft 1, a driving piece 2, a positioning shaft 4 and an elastic device 7; the positioning shaft 4 passes through the bracket 5 and the driving piece 2 and is connected to the supporting plate 6; the elastic device 7 is used for driving the arc extinguish chamber 8 to move towards the breaking direction, and the arc extinguish chamber mounting plate 3 is used for being connected with the arc extinguish chamber 8; the driving piece 2 is provided with a driving arc groove 21, the driving arc groove 21 is connected with the central shaft 1, the distances from arcs at two ends of the driving arc groove 21 to the positioning shaft 4 are different, one end of the driving arc groove is close to the positioning shaft 4, and the other end of the driving arc groove is far from the positioning shaft 4. The joint of the central shaft 1 and the driving part 2 is provided with a bearing 11, and the central shaft 1 is in rolling connection with the driving arc groove 21 through the bearing 11.

The both sides of a set of support 5 all are equipped with driving piece 2, and two driving pieces 2 use support 5 to set up as central symmetry for fixed center pin 1 better. The positioning shaft 4 is connected to the vertical plates on both sides. The set of brackets 5 is provided with two branches, namely a branch one 51 and a branch two 52, wherein the branch one 51 and the branch two 52 are respectively positioned on two sides of the central shaft 1. The ends of the first branch 51 and the second branch 52 are provided with threaded holes 53 for subsequent connection with an equipment rack to fix the bracket 5. The bracket 5 is provided with a clamping groove 54 for clamping the central shaft 1, and the clamping groove 54 is matched with the moving contact 81 in the telescopic direction. Support 5 is equipped with square hole 9, and support 5 passes through square hole 9 to be connected in location axle 4, and the shape and the size and the location axle 4 phase-match of square hole 9. One end of the elastic device 7 acts on the moving contact 81, and the other end is connected with the arc extinguish chamber mounting plate 3.

When needs carry out the arc extinguishing operation, move center pin 1 to the nearer one end of drive arc groove 21 distance location axle 4, center pin 1 drives resilient means 7 and removes, and resilient means 7 drive explosion chamber 8 moves to the direction of disconnection, makes explosion chamber mounting panel 3 keep away from explosion chamber 8, effectively reaches the effect of arc extinguishing fast.

The utility model discloses following beneficial effect has: the utility model discloses it is easy and simple to handle, the design is lower with the manufacturing degree of difficulty, and the arc extinguishing is efficient, effectively avoids the emergence of accident and accident, can use in batches.

It will be appreciated by those skilled in the art that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

1. A driving device of a vacuum arc extinguish chamber is characterized by comprising a central shaft (1), a driving piece (2), a positioning shaft (4) and an elastic device (7); the positioning shaft (4) penetrates through the bracket (5) and the driving part (2) and is connected to the supporting plate (6); the elastic device (7) is used for driving the arc extinguish chamber (8) to move towards the disconnection direction, and the arc extinguish chamber mounting plate (3) is used for being connected with the arc extinguish chamber (8); the driving piece (2) is provided with a driving arc groove (21), the driving arc groove (21) is connected with the central shaft (1), the distances from arcs at two ends of the driving arc groove (21) to the positioning shaft (4) are different, one end of the driving arc groove is close to the positioning shaft (4), and the other end of the driving arc groove is far away from the positioning shaft (4).

2. The vacuum arc-extinguishing chamber driving device according to claim 1, characterized in that a bearing (11) is arranged at the joint of the central shaft (1) and the driving part (2), and the central shaft (1) is in rolling connection with the driving arc groove (21) through the bearing (11).

3. A vacuum interrupter drive as claimed in claim 1, characterized in that the drive members (2) are arranged on both sides of one set of supports (5), and the two drive members (2) are arranged symmetrically with respect to the support (5).

4. A vacuum interrupter drive as claimed in claim 1, characterized in that the support (5) is connected to the positioning shaft (4), the support (5) being provided with a first branch (51) and a second branch (52), the first branch (51) and the second branch (52) being located on either side of the central shaft (1).

5. A vacuum interrupter drive according to claim 4, characterized in that the ends of the first (51) and second (52) branches are provided with threaded holes (53) for connection to an equipment rack.

6. The vacuum interrupter driving device according to claim 1, characterized in that the bracket (5) is provided with a locking slot (54) for locking the central shaft (1), and the locking slot (54) matches with the telescopic direction of the movable contact (81).

7. A vacuum interrupter drive as claimed in claim 1, characterized in that the resilient means (7) has one end acting on the movable contact (81) and the other end connected to the interrupter mounting plate (3).

8. A vacuum interrupter drive as claimed in claim 1, characterized in that the bracket (5) is connected to the positioning shaft (4) by a square hole (9).

9. A sealed circuit breaker comprising the vacuum interrupter driving apparatus according to any one of claims 1 to 8.