Power protection device for preventing fuse wire from being burnt due to overlarge current

Abstract

The invention relates to the technical field of electric power, and discloses a power protection device for preventing a fuse wire from being burnt due to overlarge current. The device comprises a shell, an electromagnetic device is fixedly connected to the bottom in the shell, a rotating disc is movably connected to the interior of the shell, and a reset elastic sheet is fixedly connected to theinterior of the rotating disc. According to the power protection device capable of preventing the fuse wire from being burnt due to overlarge current, when the current in a power circuit is overlarge,the magnetic field intensity of the electromagnetic device is increased, the rotating disc is further made to rotate clockwise, a vertical rod drives a transverse plate to move upwards, and a movablecontact is further made to be separated from a fixed contact; therefore, the effect of preventing electrical elements from being burnt out due to overlarge current is achieved. A pull rod is pulled rightwards, a second spring drives a limiting plate to move downwards at the moment, the transverse plate further drives the movable contact to move downwards, the movable contact makes contact with the fixed contact at the moment, and therefore the effects that the power protection device can be repeatedly used and resource waste is reduced are achieved.

Description

technical field [0001] The invention relates to the technical field of electric power, in particular to an electric power protection device for preventing fuses from being burned due to excessive current. Background technique [0002] Electricity is powered by electric energy. It converts primary energy in nature into electric power through mechanical energy devices, and then supplies electric power to various users through power transmission, transformation and distribution. In the process of using electric power, electrical equipment needs to be For power protection, the general protection measure is to achieve the purpose of power failure through the fuse. [0003] In the existing technology, when the current passing through the inside of the fuse is large, the fuse inside the fuse will break automatically, causing the circuit to be disconnected, thereby protecting the circuit. However, once the fuse inside the fuse breaks, it must be replaced with a new one. Fuses canno...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a power protection device that prevents the fuse from being burned due to excessive current. When the current passing through the inside is large, the internal fuse will break automatically, causi

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