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A locking system and a circuit breaker operating mechanism

A technology for operating mechanisms and circuit breakers, applied to high-voltage air circuit breakers, circuits, electrical components, etc., can solve problems such as low reliability, many parts, and large space occupied by tripping, so as to simplify the structure and shorten the response time , Improve the effect of reaction speed

Active Publication Date: 2018-06-26
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a locking system with simple structure and reliable function, which is used to solve the problem that the tripping device in the prior art realizes tripping through a direct-acting impact electromagnet, which takes up a lot of space, has many parts, and has low reliability. problems; at the same time, the present invention also provides a circuit breaker operating mechanism using the locking system

Method used

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  • A locking system and a circuit breaker operating mechanism
  • A locking system and a circuit breaker operating mechanism
  • A locking system and a circuit breaker operating mechanism

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Embodiment 1

[0024] Embodiment 1 of the operating mechanism of the circuit breaker of the present invention includes a locking system for energy storage tripping. The structure of the locking system is as follows Figure 1-2 As shown, the main crank arm 18 and the electromagnet are included, and a latch structure is arranged between the main crank arm 18 and the electromagnet. The main crank arm 18 is fixedly connected to the switch pull rod 20 and can rotate with the switch pull rod 20 . The detent 15 is hinged on the main crank arm 18 through the hinge shaft 16 , and the main crank arm 18 is also provided with a torsion spring 17 for providing the detent 15 to rotate clockwise. Wherein the detent 15 is provided with a waist-shaped hole 14 , and the main crank arm 18 is also provided with a limiting pin 19 extending into the waist-shaped hole 14 to limit the rotation angle of the detent 15 . When the switch pull rod 20 rotates counterclockwise under the action of the drive motor, the en...

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Abstract

The invention provides a lock catch system and a breaker operating mechanism. The lock catch system comprises a main connecting lever and an electromagnet, wherein at least one stage of latch structure is arranged between the main connecting lever and the electromagnet; the electromagnet comprises a static iron core and a movable iron core; a coil is wound on the static iron core; the movable iron core is connected with a reset spring; the movable iron core can rotate relatively to the static iron core and comprises an adsorption part which is attracted by the static iron core when the coil is electrified, so that the movable iron core reversely rotates towards the static iron core; and the movable iron core is also provided with a locking part, which positively rotates along with the movable iron core under the action of elastic force of the reset spring when the coil is powered off, and is in stop coordination with the latch structure. The lock catch system provided by the invention is simple in structure, convenient to use and relatively high in reliability.

Description

technical field [0001] The invention relates to a locking system and a circuit breaker operating mechanism. Background technique [0002] High-voltage switch circuit breakers are widely used in power transmission and transformation projects. High-voltage switch circuit breakers generally include a spring operating mechanism for driving and controlling the opening and closing of the circuit breaker, wherein the spring operating mechanism is generally provided with a locking system for energy storage to reduce power consumption during the opening and closing process of the switch. [0003] For example, the Chinese invention patent whose application publication number is CN104392867A and whose application publication date is 2015.03.04 discloses an opening, closing and tripping device in a circuit breaker operating mechanism. The tripping device includes a crank arm body, namely the main crank arm, and an electromagnet. The crank arm body and the electromagnet are connected th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/38
CPCH01H33/38
Inventor 宋超刘宇宋广民郭良超闫广超王守山朱苛娄许家源苏计东付亚旭
Owner PINGGAO GRP
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