A pressure-adjusting type fuse
A fuse and voltage regulating technology, which is applied in the direction of electrical components, electric switches, circuits, etc., can solve the problems of low service life and unreusable fuses, and achieve the effect of high service life, simple structure and guaranteed reusability
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[0019] As an embodiment of the present invention, the stretching mechanism 6 includes a spring 61 and a guide rod 62; the guide rod 62 is installed between the left cover plate 1 and the right cover plate 10, and there is an air path on the guide rod 62, The airbag 3 can be connected to cool down the telescopic mechanism 5; the spring 61 is set on the guide rod 62, and is located between the stopper 4 and the right cover 10, and the stretching distance of the spring 61 is greater than that of the telescopic mechanism without the influence of the adsorption mechanism 7. The maximum stroke of the mechanism 5 can disconnect the telescopic mechanism 5 from the connection block 8 to form an open circuit and achieve circuit protection.
[0020] As an embodiment of the present invention, the telescopic mechanism 5 includes a mercury cylinder 51, a pure copper fuse 52 and an electrical contact 53; the electrical contact 53 is connected to the mercury cylinder 51 and is at the same level a
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