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Easily-assembled small circuit breaker and operating mechanism thereof

A small circuit breaker and operating mechanism technology, applied in the direction of protection switch operation/release mechanism, etc., can solve problems such as false tripping and insensitive assembly difficulty, and achieve reliable performance, sensitive overload or short-circuit tripping, and long service life long effect

Active Publication Date: 2013-01-16
ZHEJIANG TENGEN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the background technology, the present invention provides an easy-to-assemble small circuit breaker and its operating mechanism, which mainly solves the problems of the existing small circuit breakers that are prone to false tripping or insensitive tripping and difficult to assemble

Method used

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  • Easily-assembled small circuit breaker and operating mechanism thereof
  • Easily-assembled small circuit breaker and operating mechanism thereof
  • Easily-assembled small circuit breaker and operating mechanism thereof

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing:

[0023] Depend on Figure 1 to Figure 7 As shown, an operating mechanism includes a lock 1, a jumper 2, a bracket 3, a "U"-shaped connecting rod 4 and a handle 5, and the "U"-shaped connecting rod 4 is connected between the handle 5 and the jumper 2, and the bracket 3 One-piece structure, the bracket 3 is equipped with a central shaft sleeve 6 with a central hole, a jumper hinge shaft 7, a lock reset torsion spring installation shaft 8 and a moving contact installation shaft 9, a lock buckle reset torsion spring installation shaft 8 and The moving contact installation shaft 9 is respectively arranged on both sides of the lower support 3 of the central shaft sleeve 6, and the jumper hinge shaft 7 is arranged above the central shaft sleeve 6 and on the same side as the lock reset torsion spring installation shaft 8; the jumper hinge The other side of the bracket 3 at the shaf...

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Abstract

The invention discloses an easily-assembled small circuit breaker and an operating mechanism thereof and mainly solves the problem that the conventional small circuit breaker is easy to release wrongly or release non-sensitively and difficult to assemble. The operating mechanism is characterized in that a bracket (3) is of an integrated structure and is provided with a central shaft sleeve (6) with a center hole, an articulating shaft (7) for a jumper buckle, a restoring torsion spring mounting shaft (8) for a locking buckle and a moving contact mounting shaft (9); the jumper buckle (2) is a solid component; a moving contact torsion spring (20) is coiled outside the moving contact mounting shaft (9); the mounting seat (17) on the locking buckle (1) is sleeved outside the central shaft sleeve (6) and can rotate relatively to the shaft sleeve (6); and a locking buckle restoring torsion spring (22) is coiled on the restoring torsion spring mounting shaft (8) for the locking buckle. The operating mechanism changes the structure of the bracket, and is compact in structure and convenient to mount. The circuit breaker is convenient to assemble and sensitive and reliable to release.

Description

technical field [0001] The invention relates to an electric switch, in particular to an easy-to-assemble small circuit breaker and its operating mechanism. Background technique [0002] A miniature circuit breaker is a commonly used electrical switch, mainly used in various places such as industry, commerce, and residential buildings. Existing small circuit breakers are mainly composed of housings, moving contacts, static contacts and operating mechanisms. The operating mechanisms are mainly composed of locks, jumpers, brackets, "U"-shaped connecting rods and handles. The brackets are made of metal. Stamping forming, there is a tension spring between the bottom of the bracket and the shell, the moving contact is fixed on the bracket; the jumper is also stamped and formed by metal, the jumper is clamped on the upper right corner of the bracket and hinged with the bracket, and the lock is hinged In the middle of the left side of the bracket and the upper end of the lock is lo...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H71/40
Inventor 李敏卢权胜杜润生袁高普邹城华
Owner ZHEJIANG TENGEN ELECTRIC
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