Environment-friendly fuse for electrical equipment

Abstract

The invention relates to the technical field of fuse equipment, and discloses an environment-friendly fuse for electrical equipment, which comprises a fuse main body, and is characterized in that a fusing core body movably sleeves an inner cavity at the top of the fuse main body and is positioned right below a third conductive rod; the third conducting rod and the second conducting rod are conductively connected through the fusing core body, one side of the interior of the fuse body is provided with a first communication groove hole communicated with an inner cavity of the fuse body, and the other side of the interior of the fuse body is provided with a cooling backflow groove hole which is in a conical thread shape and communicated with the top end of the first communication groove hole. According to the environment-friendly fuse for the electrical equipment, the fuse core body is arranged, the fuse link on the fuse core body is used as a trigger medium of the fuse, the vaporized insulating oil on the fuse core body is used as a trigger condition of the fuse, and the fuse can be recycled by replacing the fuse core body during use; and in the using process, the cost is relatively low, and the cyclic utilization rate is relatively high.

Description

technical field [0001] The invention relates to the technical field of fuse equipment, in particular to an environment-friendly fuse for electrical equipment. Background technique [0002] As an important component that carries the circuit current breaking, the fuse can automatically cut off the current connection in the circuit when the power line or electrical equipment is overloaded, short-circuited or undervoltage, so as to protect the power line or power consumption. The equipment forms effective protection to prevent it from causing major production safety accidents, so it is an extremely important existence in the process of power generation, transmission and use. [0003] Among them, the disconnection of the circuit by the existing fuse is mainly realized by the melting of the melt on it due to the current exceeding the specified value. The fuse has a very obvious ampere-second characteristic (that is, when the overload current is small, the fusing time is long; whe...

AI Technical Summary

Problems solved by technology

[0007] The invention provides an environmentally friendly fuse for electrical equipment, which has high sensitivity and can effectively alleviate the ampere-second characteristics existing in existing fuses, and improves the efficiency of the power-consuming circuit and electrical equipment during use and operation. The advantages of high safety and high reliability will not cause false fuse triggering due to the normal temperature rise of the upper melt, which solves the problem that the existing fuse has ampere-second characteristics, and then within a certain overload current range, When the overload current returns to normal in time, the fuse will not be blown, resulting in certain safety hazards in the use of the existing fuse; at the same time, when the melt on the existing fuse is flowing current, It will inevitably generate a certain amount of heat, and in the process of flowing current for a long time, the speed of heat accumulation is gradually greater than the speed of diffusion due to the increase of ambient temperature, which leads to the occurrence of melt on the fuse The phenomenon of false fuse triggering, poor stability and reliability

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