A fuse installation structure

Abstract

The invention provides a fuse mounting structure. The fuse mounting structure comprises an electric appliance box main body and a fuse holder, wherein slots are formed in the two sides of the electric appliance box main body; first bosses and second bosses are arranged inside the slots; the fuse holder comprises a fuse mounting part, clamping parts positioned on the two sides of the fuse mounting part, and two insertion parts positioned below the fuse mounting part; the insertion parts comprise sliding chutes with sealed upper ends and lower ends, and bulges protruded in the directions far away from the sliding chutes; the insertion parts of the fuse holder are inserted in the slots of the electric appliance box main body; the second bosses are positioned in the sliding chute; under the working condition, the first bosses are buckled with the bulges, and meanwhile the second bulges are not in contact with the lower ends of the sliding chutes; under the out-of-service condition, the first bosses squeeze the bulges to enable the insertion parts to be deformed towards the sliding chutes, and meanwhile the second bosses are in contact with the lower ends of the sliding chutes. The fuse mounting structure disclosed by the invention is convenient to operate and high in safety.

Description

technical field [0001] The invention relates to the field of electrical components, in particular to a fuse installation structure. Background technique [0002] Fuse (also known as fuse) is an important protection device to prevent current overload. [0003] The fuse installation structure in prior art one is as follows: Figure 1 to Figure 5 As shown, the fuse 1 is directly inserted into the electrical box body 2, and the metal terminal 3 in the electrical box body 2 clamps the fuse 1. The entire installation structure consists of figure 1 The detached state shown is entered as figure 2 The installation status shown. [0004] The fuse mounting structure in the prior art has only such figure 1 The separation state where the shown fuse 1 is completely separated from the electrical box body 2 and as shown figure 2 The shown fuse 1 and the electrical box body 2 are installed in two states, and rapid switching between the two states cannot be realized. When it is neces...

AI Technical Summary

Problems solved by technology

However, in actual operation, first of all, since the fuse is always in the fuse box, the operator cannot visually confirm whether the fuse has indeed broken away from the contact with the metal terminal. Contact, in the follow-up maintenance work, the operator is actually operating with electricity, this kind of misoperation is very dangerous, and after installation, it can only be visually judged whether the assembly is in place, but it cannot be accurately judged; secondly , even if the operator does pull out the fuse so that it is out of contact with the metal terminal, it is very important to maintain a continuous and reliable power-off state when the fuse is pulled out. When the operator accidentally presses down on the fuse with his body or tools, The fuse will return to the installed state and contact the metal terminal. At this time, the operator does not realize that the fuse has returned and the circuit is connected. The disconnection assurance measures between the terminal and the pin of the fuse lack effective isolation protection, maintenance, operation errors, etc., which may easily lead to accidental contact conduction

In addition, prior art 2 still cannot solve the problem of inconvenient disassembly and assembly of the fuse and easy falling off

Moreover, the second prior art still needs to use a special coupler (i.e., a safety clip-type removal tool) to remove the insurance, and put it into the installation transition structure designed in the fuse box.

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