Circuit breaker

Abstract

The invention relates to a circuit breaker. The circuit breaker comprises a fixedly arranged U-shaped yoke; an armature assembly, rotationally arranged relative to the U-shaped yoke, one end of the armature assembly being provided with an armature part attracted with the U-shaped yoke, the other end of the armature assembly being a striking end outputting acting force outwards, and the armature assembly being further provided with a middle connecting part connected with the one end and the other end; a conductive plate, a moving contact, and a flexible connector, the conductive plate penetrating through the U-shaped yoke and being parallel to the bottom of the U-shaped yoke, and the flexible connector being connected between the conductive plate and the moving contact; and an armature assembly hinging mechanism, acting on the armature assembly to enable the armature assembly to keep a trend opposite to the attraction of the U-shaped yoke, and a stopping part which is used for preventing the flexible connection from laterally expanding or displacing to be in contact with the armature assembly and is positioned between the flexible connection and the middle connecting part extending on the U-shaped yoke. The circuit breaker has the advantages that the circuit breaker can be timely broken, and potential safety hazards caused by incomplete breaking and even failure are completely eradicated; the circuit breaker is compact in structure and small in size, and can meet the requirement of miniaturization development of the circuit breaker.

Description

technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to a circuit breaker. Background technique [0002] The clapping electromagnet is the functional part that drives the tripping mechanism of the electric switch to trip. In low-voltage electrical appliances such as the aforementioned circuit breaker, its structure is expressed in the form of: a static contact and a moving contact, and a moving contact. One end is matched with the static contact, and the other end of the moving contact is electrically connected with the conductive plate provided with the instantaneous release mechanism through a soft connection, and the static contact, the moving contact are connected according to the conventional design mode in the prior art. The head, the flexible connection, the conductive plate, and the instantaneous release mechanism are arranged separately from one side to the other, for example, from left t...

AI Technical Summary

Problems solved by technology

The form of distributing the aforementioned components, which is largely influenced by traditional design thinking, has the disadvantage of low space utilization and is not conducive to the development of circuit breakers in the direction of miniaturization, and soft connections are commonly used connecting conductors in circuit breakers. The use of metal wires such as the typical fluffy structure braided by copper wires is soft and flexible, which is beneficial to shape changes and has good current-carrying capacity. However, during the movement of the moving contact, due to the dynamic The drag of the contact leads to the undesirable deformation of the soft connection, and even the situation of jamming the armature, which will cause the circuit breaker to be disconnected in time and also pose a safety hazard

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