Patent ID: 11908651
Assignee: TIANJIN JMT ELECTRIC EQUIPMENT CO., LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An intelligent circuit breaker capable of automatically releasing and tripping in power failure, with an electromagnetic force capable of controllably changing a current direction arranged between a permanent magnetic field force and a mechanical spring force, and the electromagnetic force, the permanent magnetic field force and the mechanical spring force are designed on a straight line, comprising a circuit breaker housing, a permanent magnet static iron core (1), an electromagnetic moving iron core (2) and an electromagnetic coil (3), wherein an electromagnetic coil framework (4) and a support (5) are arranged in the circuit breaker housing, the permanent magnet static iron core (1), the electromagnetic moving iron core (2) and the electromagnetic coil (3) are respectively fixed on the electromagnetic coil framework (4) through a first shaft hole (14), a second shaft hole (15) and a wire slot (16), a tripping transmission rod (8) is arranged on the electromagnetic moving iron core (2), the electromagnetic moving iron core (2) and the tripping transmission rod (8) are of an integrated structure, a tripping energy storage spring (7) is sleeved on the tripping transmission rod (8), the electromagnetic moving iron core (2), the tripping energy storage spring (7) and the tripping transmission rod (8) form an electromagnetic moving iron core tripping mechanism assembly and are attracted by the permanent magnet static iron core (1), a permanent magnet attraction reset shifting fork (6) is arranged in a shifting groove of the tripping transmission rod (8), and one end of the tripping transmission rod (8) is provided with a tripping connecting rod (9), the tripping transmission rod (8) is in close contact with the tripping connecting rod (9), a second energy storage module (12), a control circuit (10) and a first energy storage module (11) are sequentially arranged inside the circuit breaker housing, and a moving contact movement mechanism (13) is arranged on an upper portion of the tripping transmission rod (8).