CN-224217422-U - Indoor high-voltage vacuum circuit breaker

Abstract

The utility model discloses an indoor high-voltage vacuum circuit breaker, which relates to the field of circuit breakers and comprises an operating mechanism and a vacuum arc-extinguishing chamber, wherein the operating mechanism comprises a cam and a separating brake tripping plate arranged on the side surface of the cam, a separating brake electromagnet is arranged below the separating brake tripping plate, the separating brake electromagnet is arranged on a bracket of the operating mechanism through a mounting seat, and a plurality of strip-shaped holes are arranged on the mounting seat and are connected with the bracket through bolts. The utility model has the advantage of strong adjustability.

Inventors

• YU HAOJIE

Assignees

• 阿德莱斯电气股份有限公司

Dates

Publication Date

20260508

Application Date

20250529

Claims (5)

1. 1. The indoor high-voltage vacuum circuit breaker comprises an operating mechanism (1) and a vacuum arc-extinguishing chamber (2) and is characterized in that the operating mechanism (1) comprises a cam (3) and a breaking plate (4) arranged on the side face of the cam (3), a breaking electromagnet is arranged below the breaking plate (4), the breaking electromagnet is arranged on a support (6) of the operating mechanism (1) through a mounting seat (5), and a plurality of strip-shaped holes (7) are formed in the mounting seat (5) and are connected with the support (6) through bolts (8).
2. 2. The indoor high-voltage vacuum circuit breaker according to claim 1, wherein the breaking electromagnet comprises a coil (9) fixedly connected with the mounting seat (5) and an iron core (10) surrounded by the coil (9).
3. 3. An indoor high-voltage vacuum circuit breaker according to claim 2, characterized in that the lower end of the iron core (10) is provided with a push rod (16) and a return spring (11).
4. 4. An indoor high voltage vacuum interrupter as claimed in claim 1, wherein the vacuum interrupter (2) comprises a tubular insulating cylinder (12) cast of epoxy resin.
5. 5. The indoor high-voltage vacuum circuit breaker according to claim 1, wherein a disc spring (13) is arranged in the lower end of the vacuum arc-extinguishing chamber (2), an insulating pull rod (14) is arranged at the lower end of the disc spring (13), and a transmission crank arm (15) for connecting the insulating pull rod (14) and the operating mechanism (1) in a linkage manner is arranged between the insulating pull rod and the operating mechanism.

Description

Indoor high-voltage vacuum circuit breaker Technical Field The utility model relates to the field of circuit breakers, in particular to an indoor high-voltage vacuum circuit breaker. Background An existing indoor high-voltage vacuum circuit breaker is an open type air insulation vacuum circuit breaker protection device and a protection method disclosed in 2016-07-20 with publication number CN105788952A, wherein a brake release can only meet the requirement of a single voltage level, the pressure change between a movable contact and a static contact under different voltage levels can not be adapted, a catastrophic accident can be caused by misoperation, and the defect of poor adjustability exists. Disclosure of utility model In order to overcome the defects of the background technology, the utility model provides the indoor high-voltage vacuum circuit breaker with strong adjustability. The technical scheme includes that the indoor high-voltage vacuum circuit breaker comprises an operating mechanism and a vacuum arc-extinguishing chamber, wherein the operating mechanism comprises a cam and a breaking tripping plate arranged on the side face of the cam, a breaking electromagnet is arranged below the breaking tripping plate, the breaking electromagnet is arranged on a support of the operating mechanism through a mounting seat, and a plurality of strip-shaped holes are formed in the mounting seat and are connected with the support through bolts. The brake separating electromagnet comprises a coil fixedly connected with the mounting seat and an iron core surrounded by the coil. And the lower end of the iron core is provided with an ejector rod and a return spring. The vacuum arc-extinguishing chamber comprises a tubular insulating cylinder, and the insulating cylinder is formed by pouring epoxy resin. The vacuum arc-extinguishing chamber is characterized in that a disc spring is arranged in the lower end of the vacuum arc-extinguishing chamber, an insulating pull rod is arranged at the lower end of the disc spring, and a transmission crank arm for linkage connection of the insulating pull rod and the operating mechanism is arranged between the insulating pull rod and the operating mechanism. The brake separating electromagnet has the beneficial effects that the brake separating electromagnet is arranged on the bracket of the operating mechanism through the mounting seat, and the mounting position of the brake separating electromagnet can be adjusted through the strip-shaped hole by arranging the strip-shaped hole on the mounting seat, so that the stress point of the brake separating tripping plate changes, namely the rotation moment of the brake separating tripping plate changes, therefore, the brake separating electromagnet can be suitable for various conditions with different rotation moment requirements and has the advantage of strong adjustability. Drawings Fig. 1 is a schematic structural diagram of an indoor high-voltage vacuum circuit breaker according to an embodiment of the present utility model. Detailed Description Embodiments of the utility model are further described below with reference to the accompanying drawings: As shown in the figure, the indoor high-voltage vacuum circuit breaker comprises an operating mechanism 1 and a vacuum arc-extinguishing chamber 2, wherein the operating mechanism 1 comprises a cam 3 and a separating brake tripping plate 4 arranged on the side surface of the cam 3, a separating brake electromagnet is arranged below the separating brake tripping plate 4, the separating brake electromagnet is arranged on a bracket 6 of the operating mechanism 1 through a mounting seat 5, a plurality of strip-shaped holes 7 are arranged on the mounting seat 5 and are connected with the bracket 6 through bolts 8, the separating brake electromagnet is arranged on the bracket of the operating mechanism through one mounting seat, and the mounting position of the separating brake electromagnet can be adjusted through the strip-shaped holes, so that the stress point of the separating brake tripping plate is changed, namely the rotation moment of the separating brake tripping plate is changed. The brake separating electromagnet comprises a coil 9 fixedly connected with the mounting seat 5 and an iron core 10 surrounded by the coil 9, when the brake separating electromagnet is powered on, the iron core acts, so that a certain point on one end of the brake separating tripping plate is stressed to move upwards to drive a cam positioned on the other end of the brake separating tripping plate to rotate, and further brake separating tripping is realized. The lower end of the iron core 10 is provided with a push rod 16 and a return spring 11, the return spring is sleeved on the push rod, two ends of the return spring are limited by the coil and a top flange of the push rod respectively, the other end of the push rod is fixedly connected with the iron core, and when the coil is electrified, the iron core