Low-current thermal tripping aviation circuit breaker

Abstract

The invention relates to a low-current thermal tripping aviation circuit breaker which comprises a wire inlet terminal and a wire outlet terminal. The circuit breaker is characterized in that the circuit breaker comprises a contact sliding rod, a hooking plate, a bimetallic strip assembly and a moving contact; the contact sliding rod is arranged in a linear sliding manner; the hooking plate is arranged in a swinging manner; the bimetallic strip assembly comprises a first conductive block, a second conductive block and an insulating layer; one end of the first conductive block is electrically connected with the wire inlet terminal, and the other end of the first conductive block is electrically connected with one end of the second conductive block; the other end of the second conductive block is electrically connected with the static contact; the insulating layer is arranged between the first conductive block and the second conductive block; a push plate is arranged between the hookingplate and the bimetallic strip assembly and is movably arranged relative to the shell; the moving contact is rotatably connected with the contact sliding rod; the moving contact can swing relative tothe contact sliding rod; and the moving contact is provided with a first moving contact piece used for being electrically connected with the static contact and a second moving contact piece used for being electrically connected with the wire outlet terminal. The circuit breaker can realize low-current overload protection, and is reliable in performance and low in cost.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a low-current thermal trip aviation circuit breaker. Background technique [0002] At present, the aviation circuit breakers used in the simulated aircraft are generally electromagnetically controlled electronic switches, which do not have the real overload protection function, and the degree of simulation for flight simulation is low; and the use of real aviation circuit breakers in the simulated flight environment is costly. will be very high. [0003] Aviation circuit breakers are currently monopolized by major international companies, and the price remains high. However, there are large differences between traditional analog circuit breakers and actual aviation circuit breakers in terms of principle and performance. The appearance and operation mode of the simulated circuit breaker are the same as the real aviation circuit breaker, but the internal structure is quite dif...

AI Technical Summary

Problems solved by technology

The appearance and operation mode of the simulated circuit breaker are the same as the real aviation circuit breaker, but the internal structure is quite different. Due to cost and structural limitations, the rated current of the circuit breaker is relatively large, so it cannot implement overload protection for low-current circuits

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