An Easy-to-Judgment Detection Type Overcurrent Protection Device

Abstract

The invention discloses a detection-type overcurrent protection device for easy judgment, which comprises a box body, a current-carrying plate is embedded on the top inner wall of the box body, and a conductive column is connected to the bottom inner wall of the box body through bearing rotation , the upper end of the conductive column is coaxially welded with a rotating plate made of insulating material, the memory metal is fixedly connected between the rotating plate and the current plate, and the lower end of the conductive column is coaxially welded with a circular connecting plate. The advantage is that the present invention can respond in time to the overload current in the household circuit and the short-circuit of the electrical appliance, and protect the household circuit and the electrical appliance. At the same time, the batteries and electrical appliances in the box are connected in series, and the internal circuit of the short-circuited electrical appliance is used to phase The resistance value is small, and the current of the battery will make the indicator light emit more light, so that the user can quickly find out which electrical appliance has the short circuit problem, and it is convenient to solve the problem in time.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to a detection-type overcurrent protection device for easy judgment. Background technique [0002] Overcurrent refers to the amount of current passing through a conductor in excess of what is expected, resulting in excessive heating, and the risk of fire or damage. Possible causes of overcurrent include short circuits, excessive loads, improper design or ground faults, usually using fuses , circuit breaker, temperature sensor and current limiter to control the risk of overcurrent [0003] The device that consumes electrical energy in the circuit is called an electrical appliance (also called a load). The function of an electrical appliance is to convert electrical energy into other forms of energy. In the use of household electrical appliances, overcurrents that may generally occur are divided into overload currents and short-circuit currents. , while in the prior art...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that although the fuse fuse or leakage protector adopted in the prior art can cut off the power in time to protect the household circuit, it is impossible to judge which electrical appliance has the short circuit problem, and it is troublesome to check one by one for maintenance, and Affecting the normal use of other electrical appliances, a detection-type over-current protection device that is easy to judge is proposed

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