Manufacturing method and finished product of micro-fuse

Abstract

The invention relates to a micro-fuse which comprises a melting part, two electrode parts, a seat body and a cover body, wherein the melting part is provided with a column body surrounding a melting wire body to form a surrounding melting wire; one end of the electrode parts is provided with two ring bodies with closed end parts and bearing and fixing surfaces; the seat body is provided with through holes for the two electrode parts to pass through, the upper end of the seat body is provided with a bearing platform, sides of the seat body are provided with buckling rings, the lower end of the seat body is provided with a positioning block; and the cover body is buckled on the seat body to form a close space. The invention also relates to a fabricating method of the micro-fuse, which comprises the following steps: providing the seat body, arranging the two electrode parts in a penetrating way; forming planes and the bearing and fixing surfaces at the end parts of the two electrode parts, and bending through hole grooves to form the two ring bodies, wherein the inner ring body is pressed and fixedly connected to the inner side of the melting part, the outer ring body is welded and fixedly connected to the end part of the melting part; bearing the melting part by the bearing platform at the upper end of the seat body; and forming the close space by the cover body correspondingly covering the seat body. The micro-fuse has high yield, high quality and high safety.

Description

technical field [0001] The invention provides a method for manufacturing a miniature fuse and the finished product, especially related to the electrode part of the finished product, one end of which is set as a two-ring body with closed ends, and is provided with a supporting surface; in addition, the manufacturing method includes: , to form through-hole groove ends connected at the ends, so that the fusion welding can be more effective and stable. Background technique [0002] Traditional fuses are generally used in electronic products. When the current passing through the fuse is too large, the melting part will be blown to avoid dangers such as overheating and ignition of the circuit. The purpose is to protect people and equipment from damage due to overcurrent, or even fire. [0003] Furthermore, as electrical equipment is thinner and smaller, its functions are becoming more and more complex, more and more parts are required, and the circuits and electronic components on...

AI Technical Summary

Problems solved by technology

[0006] 1. The micro-fuse in the prior art has no good positioning design, poor product stability, difficult manufacturing and high cost, use of waste materials and high production defect rate

[0007] 2. The micro-fuse in the prior art, when processing the solder joints of the pins, is likely to generate local high temperature and cause secondary welding, the protection is not complete, and it cannot meet the needs of the market

[0008] 3. The micro-fuse in the prior art cannot determine the normal rated maximum current when used to protect the safety of the circuit, and cause expensive equipment to be damaged, burned, injured or dangerous accidents

[0009] 4. In the prior art, when tiny peeling occurs, it is not easy to detect the internal defect due to the normal appearance

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