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Alloy fuse

A fuse and alloy technology, applied in electrical components, circuits, emergency protection devices, etc., can solve the problems of difficult control of the size of the alloy effect point at welding temperature, poor consistency of alloy fuses, and inability to achieve precise fusing, etc., and achieve fusing characteristics. The effects of control, power consumption reduction, and product safety and reliability

Inactive Publication Date: 2016-12-07
DONGGUAN BETTER ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to provide a wide applicable current range, small size, simple structure, safe and reliable alloy fuse to solve the problems of welding temperature and alloy effect point of the existing alloy fuse. The size is not easy to control, and the consistency of the alloy fuse is poor, the breaking capacity is weak, and the problem of precise fusing cannot be achieved

Method used

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the specific embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0030] Such as Figure 2~6 As shown, an alloy fuse includes an alloy effect point 1 and a wire 2 connected to both ends of the alloy effect point 1, wherein the diameters of the wires 2 at both ends are equal, and the alloy effect point 1 is a flat sheet-shaped fuse, and the fuse The thickness of the fuse is 6 / 10~9 / 10 of the diameter of the wire 2, and the fuse piece is set in a flat shape, so that the fusing characteristics of the fuse are easier to control.

[0031] The fuse link is provided with several through holes 11, wherein the aperture size of the through hole 11 is 0.1~10mm, and the porosity is 40~80%. If the aperture or porosity is too small, the breaking capacity of the fuse link will be weakened, which is not conducive to Timely fusing; if the pore...

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Abstract

The invention belongs to the technical field of electric protection devices and particularly relates to an alloy fuse. The alloy fuse comprises an alloy effect point and a wire connected to the two ends of the alloy effect point. The alloy effect point is a flat flaky fuse piece. The thickness of the fuse piece is smaller than the diameter of the wire. A plurality of through holes are formed in the fuse piece. The outer surface of the fuse piece is wrapped by a polymer material layer. The alloy effect point is in a flat flaky shape and provided with the through holes, fusing weak points are formed by increasing or reducing the number of through holes, so relative power is reduced, fusing characteristics are easy to control, and material waste is reduced. The outer surface of the fuse piece is wrapped by the polymer material layer, on one hand, the heat gathering and balancing function can be achieved, on the other hand, the arc extinguishing effect can be achieved, the alloy effect point can be fused precisely in time, accordingly the breaking capacity of the alloy fuse is effectively improved, and products are safer and more reliable.

Description

technical field [0001] The invention belongs to the technical field of electrical protection devices, in particular to an alloy fuse. Background technique [0002] Fuse refers to an electrical appliance that fuses the fuse with the heat generated by itself and disconnects the circuit when the current exceeds the specified value. Fuses are widely used in high and low voltage power distribution systems and control systems, as well as electrical equipment. As short circuit and overcurrent protectors, fuses are one of the most commonly used protection devices. [0003] The fuse is mainly composed of melt, fuse tube and external filler. When in use, connect the fuse in series in the protected circuit. When the current of the protected circuit exceeds the specified value, and after a certain period of time, the heat generated by the melt itself will fuse the fuse and disconnect the circuit, thereby protecting the fuse. effect. [0004] Alloy fuse refers to an electrical applian...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/08H01H85/06H01H85/38
CPCH01H85/08H01H85/06H01H85/38H01H2085/388
Inventor 李刚高琳韩露卢志明
Owner DONGGUAN BETTER ELECTRONICS TECH
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