Manually-controllable safety type circuit protector

Abstract

The invention discloses a manually-controllable safety type circuit protector. The protector comprises a protection box, a pressing plate is arranged on the inner wall of the protection box, a sliding rod is fixed to the upper end of the pressing plate, the upper end of the sliding rod penetrates out of the protection box, an embedding groove is formed in the inner wall of the protection box, a rotating plate is slidably connected to the inner wall of the embedding groove, the rotating plate and the sliding rod are connected in a penetrating and sliding mode; two symmetrically-arranged supporting rods are fixed to the inner bottom of the protection box; the pressing plate and the supporting rods are connected in a penetrating and sliding mode; and a trigger block is fixed to the bottom of the pressing plate. According to the manually-controllable safety type circuit protector, the sliding plate and electrorheological fluid at the upper end of the sliding plate are adopted, expansion can be generated when current is too large, so that the sliding rod and the pressing plate can be pushed to move, separation of an annular power connection block and a power-on block can be realized, automatic disconnection can be realized when over-current occurs in a circuit, and over-current protection on the circuit can be realized; and damage to lines and electric appliances caused by continuous overcurrent can be avoided.

Description

technical field [0001] The invention relates to the technical field of line protection, in particular to a human-controllable safety circuit protector. Background technique [0002] Line protection is mainly to protect the line from overheating, overcurrent, surge and short circuit. Overcurrent refers to the current that the overcurrent exceeds the rated current. The loop current that is greater than the rated current carrying capacity of the loop conductor is an overcurrent, which includes Overload current and short circuit current, continuous overcurrent will cause great damage to the circuit and the internal parts of the electrical appliance, so for the normal use of household appliances, it is necessary to use a circuit protector to protect the circuit; [0003] However, fuses and circuit breakers are generally used for protection in the use of existing household electrical appliances, and when the fuse is overcurrent or short-circuited in the line, it uses the excessive...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the line in the prior art cannot be automatically restored after a fault occurs, and proposes a safety circuit protector that can be controlled manually

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