CN211858553U

CN211858553U - Soft connection device of circuit breaker and circuit breaker comprising same

Info

Publication number: CN211858553U
Application number: CN201922417987.8U
Authority: CN
Inventors: 瞿钊; 涂占炜; 吴炳昌; 武宏伟
Original assignee: Schneider Electric Xiamen Switch Equipment Co ltd
Current assignee: Schneider Electric Xiamen Switch Equipment Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-11-03
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a soft connecting device of circuit breaker and circuit breaker including this soft connecting device. The flexible connection device comprises a cylindrical conductive outgoing line seat, a first flexible connection body, a second flexible connection body and a metal block, wherein the first flexible connection body, the second flexible connection body and the metal block are arranged on the inner side of the cylindrical conductive outgoing line seat, the first flexible connection body comprises a first end part and a second end part which form a non-zero included angle, and a first bending part positioned between the first end part and the second end part, the second flexible connection body comprises a third end part and a fourth end part which form a non-zero included angle, and a second bending part positioned between the fourth end part and the fifth end part, the metal block comprises a fifth end part and a sixth end part which are opposite, the first end part of the first flexible connection body is respectively connected with a movable end of an arc extinguish chamber and the fifth end part of the metal block, the second end part of the first flexible connection body is connected with the inner side wall of the cylindrical conductive outgoing line seat, the third end part of the second flexible connection body is connected with the sixth end, thereby rendering the main circuit of the circuit breaker conductive.

Description

Soft connection device of circuit breaker and circuit breaker comprising same

Technical Field

The utility model relates to a soft connecting device of circuit breaker and circuit breaker including this soft connecting device.

Background

Currently, manufacturers commonly use contact spring designs for high rated current circuit breakers, especially 3150A and 4000A. This design is not only expensive, but also requires special lubrication and is therefore complicated to assemble.

The movable soft connector is an important conductive device in the circuit breaker, and has the advantages of simple structure and low cost. Therefore, it is an urgent problem to provide a high-rated current circuit breaker having a flexible connector with a simple structure, low cost and high performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a soft connecting device of circuit breaker and circuit breaker including this soft connecting device, its simple structure, low cost just have higher performance.

The utility model relates to a soft connecting device of a circuit breaker, which is arranged between an arc extinguish chamber movable end and an insulating pull rod of the circuit breaker, the soft connecting device comprises a cylindrical conductive outgoing line seat, a first soft connecting body, a second soft connecting body and a metal block, wherein the first soft connecting body comprises a first end part and a second end part which form a non-zero included angle, and a first bending part positioned between the first end part and the second end part, the second soft connecting body comprises a third end part and a fourth end part which form a non-zero included angle, and a second bending part positioned between the fourth end part and the fifth end part, the metal block comprises a fifth end part and a sixth end part which are opposite, the first end part of the first soft connecting body is respectively connected with the arc extinguish chamber movable end of the circuit breaker and the fifth end part of the metal block, the second end part of the first soft connecting body is connected with the inner side wall of the cylindrical conductive outgoing line seat, the third end of the second flexible connector is connected with the sixth end of the metal block, and the fourth end of the second flexible connector is connected with the inner side wall of the cylindrical conductive outlet base, so that the main circuit of the circuit breaker is conducted.

Preferably, the first bent portion and the second bent portion are located on both sides of the metal block.

Preferably, the first end of the first soft link is perpendicular to the second end of the first soft link, and the first soft link has an L-shape.

Preferably, the third end of the second flexible connector is perpendicular to the fourth end of the second flexible connector, and the second flexible connector has an L-shape.

Preferably, the first flexible connector and the second flexible connector are each formed of a plurality of copper sheets stacked together.

Preferably, the metal block is made of aluminum.

Preferably, the metal block comprises a connecting rod arranged inside and protruding from the fifth end and the sixth end for arranging the flexible connection means between the arc chute moving end and the insulating tie rod of the circuit breaker.

Preferably, the first flexible connector, the second flexible connector, the metal block and the cylindrical conductive outlet base are connected together by bolts or screws.

The utility model discloses still relate to a circuit breaker, its characterized in that, this circuit breaker include as before the flexible coupling device.

Drawings

The advantages and objects of the present invention will be better understood from the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the relationship of the various components. In the drawings:

fig. 1 is a schematic view showing a flexible connection device of a circuit breaker according to an embodiment of the present invention;

fig. 2 is a three-dimensional schematic diagram of a flexible connection arrangement of a circuit breaker according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a circuit breaker according to an embodiment of the present invention; and

fig. 4 is a partial three-dimensional schematic diagram of a circuit breaker according to an embodiment of the present invention.

Detailed Description

Various embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Here, it is to be noted that, in the drawings, the same reference numerals are given to constituent parts having substantially the same or similar structures and functions, and repeated description thereof will be omitted. The terms "upper", "lower", and the like herein are described with respect to the drawings of the present invention, unless otherwise specified. The description of "first" and its variants is merely for the purpose of distinguishing between the parts and does not limit the scope of the invention, which can be written as "second" and so on without departing from the scope of the invention.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof.

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 and 2 show a soft coupling device 100 for a circuit breaker, and fig. 3 and 4 show a circuit breaker 200 including the soft coupling device 100.

As shown in fig. 3 and 4, the flexible connection device 100 is disposed between an arc extinguishing chamber moving end 201 and an insulating pull rod 202 of the circuit breaker.

As shown in fig. 1, the flexible connection device 100 includes a first flexible connector 1, a second flexible connector 2, a metal block 3, and a cylindrical conductive outlet 4. The first flexible connector 1, the second flexible connector 2 and the metal block 3 are arranged on the inner side of the cylindrical conductive outgoing line seat 4. The first flexible connector 1 comprises a first end 11 and a second end 12 forming a non-zero included angle and a first bend 13 between the first end and the second end. The second flexible connector 2 comprises a third end portion 21 and a fourth end portion 22 forming a non-zero included angle and a second bent portion 23 located between the fourth end portion and the fifth end portion. The metal block 3 comprises opposite fifth 31 and sixth 32 ends.

Furthermore, the metal block further includes a connecting rod 33 disposed inside thereof and protruding from the fifth end 31 and the sixth end 32, as shown in fig. 3, the connecting rod 33 is disposed between the arc extinguishing chamber moving end 201 of the circuit breaker 200 and the insulating tie bar 202, so that the soft connection device is disposed between the arc extinguishing chamber moving end 201 of the circuit breaker 200 and the insulating tie bar 202, and thus, the insulating tie bar 202 can bring the metal block in the soft connection device 100 to move in the vertical direction shown in the drawing.

As shown in fig. 3, the first end 11 of the first flexible connector 1 is connected to the arc extinguishing chamber movable end 201 and the fifth end 31 of the metal block, the second end 12 of the first flexible connector 1 is connected to the inner sidewall 41 of the cylindrical conductive outlet 4, the third end 21 of the second flexible connector 2 is connected to the sixth end 32 of the metal block, and the fourth end 22 of the second flexible connector 2 is connected to the inner sidewall 41 of the cylindrical conductive outlet 4 at different positions, so that the main circuit of the circuit breaker is conducted.

As shown in fig. 2, the first flexible connecting body 1 is further provided with a hole for the connection rod 33 to pass through. Thus, the first end 11 of the first flexible connector 1 is sandwiched between the arc extinguishing chamber mobile end 201 and the fifth end 31 of the metal block. As shown in fig. 3, the second flexible connecting body 2 is further provided with a hole for the connection rod 33 to pass through.

As shown in fig. 1 to 4, the first bent portion 13 and the second bent portion 23 are located on both sides of the metal block 3. The present invention is not limited to the embodiment shown in the drawings, and the first bending portion and the second bending portion may be disposed at other positions as long as they are separated from each other.

In addition, the first bent portion 13 shown in fig. 1 and 2 is located on the left side of the metal block 3, and the second bent portion 23 is located on the right side of the metal block 3, while the first bent portion shown in fig. 3 is located on the right side of the metal block 3, and the second bent portion is located on the left side of the metal block 3.

Further, as shown in fig. 1, the first end 11 of the first flexible connecting body is perpendicular to the second end 12 of the first flexible connecting body, and the third end 21 of the second flexible connecting body is perpendicular to the fourth end 22 of the second flexible connecting body. The utility model discloses be not limited to this, the first end of first soft connector and the third tip and the fourth tip of second soft connector can set up to form other angles except the right angle. For example, the first and second flexible connectors each have an approximately L-shape.

For example, the first flexible connector and the second flexible connector may each comprise a plurality of copper sheets stacked together by welding. The thickness of each copper sheet is, for example, 0.02 μm. In other examples, the first and second flexible connectors may be formed of a metal wire or a metal wire by weaving. The flexible connector of the present invention is not limited to the above example as long as it is made of a flexible conductive material. For example, the metal block is made of aluminum. However, the present invention is not limited to the above examples.

As shown in fig. 2 to 3, the first flexible connector 1, the second flexible connector 2, the metal block 3 and the cylindrical conductive outlet socket 4 are connected together by a bolt or a screw passing through a hole formed therein.

Through the structure, can be with following the explosion chamber of circuit breaker and moving the electric current that the end flows and divide into two the tunnel, directly flow to the electrically conductive seat of being qualified for the next round of competitions of cylindric via first soft connector all the way, another way flows to the electrically conductive seat of being qualified for the next round of competitions of cylindric via metal block and the soft connector of second, so can optimize the electrodynamic force, reduces the harmful effects to vacuum interrupter's performance, improves the peak current that vacuum interrupter bore and bore, therefore the utility model discloses a circuit breaker simple structure, performance are higher and can operate steadily for a long time.

The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the present invention to achieve the purpose of the present invention.

Claims

1. A soft connecting device of a circuit breaker is arranged between a movable end of an arc extinguish chamber and an insulating pull rod of the circuit breaker and is characterized in that,

the flexible connection device comprises a cylindrical conductive outlet base, a first flexible connector, a second flexible connector and a metal block which are arranged on the inner side of the cylindrical conductive outlet base,

wherein the first flexible connector includes a first end and a second end forming a non-zero included angle and a first bend located between the first end and the second end, the second flexible connector includes a third end and a fourth end forming a non-zero included angle and a second bend located between the fourth end and the fifth end, and the metal block includes opposite fifth and sixth ends, an

Wherein the first end of the first soft connector is respectively connected with the arc extinguish chamber movable end of the circuit breaker and the fifth end of the metal block, the second end of the first soft connector is connected with the inner side wall of the cylindrical conductive wire outlet seat, the third end of the second soft connector is connected with the sixth end of the metal block, and the fourth end of the second soft connector is connected with the inner side wall of the cylindrical conductive wire outlet seat, so that the main circuit of the circuit breaker is conducted.

2. The flexible connection device of claim 1, wherein the first and second curved portions are located on opposite sides of the metal block.

3. The flexible connection device of claim 1 wherein the first end of the first flexible connection body is perpendicular to the second end of the first flexible connection body and the first flexible connection body has an L-shape.

4. The flexible connection device of claim 1, wherein the third end of the second flexible connection body is perpendicular to the fourth end of the second flexible connection body, and the second flexible connection body has an L-shape.

5. The flexible connection device of claim 1 wherein the first flexible connection body and the second flexible connection body are each formed from a plurality of copper sheets stacked together.

6. The flexible connection device of claim 1, wherein the metal block is made of aluminum.

7. The flexible connection device of claim 1, wherein the metal block includes a connection rod disposed therein and protruding from the fifth and sixth ends for positioning the flexible connection device between the arc chute moving end and the dielectric pull rod of the circuit breaker.

8. The flexible connection device of claim 1, wherein the first flexible connection body, the second flexible connection body, the metal block and the cylindrical conductive wire outlet are connected together by a bolt or a screw.

9. A circuit breaker, characterized in that it comprises a soft-connection device according to any one of the preceding claims 1 to 8.