Fuse and manufacturing method thereof

摘要

A fuse and a manufacturing method thereof are disclosed. Since a nonconductive member formed of a ceramic material with excellent mechanical strength and a ceramic tube are used and the ceramic tube is joined to sealing electrodes by use of brazing rings, durability of the fuse is considerably improved. The fuse may be stably used at a high voltage by improving time-lag characteristics.

主权项

1. A fuse comprising:
a ceramic tube; a pair of sealing electrodes disposed at both ends of the ceramic tube and respectively electrically connected to lead wires; a fuse unit accommodated in the ceramic tube to be electrically connected to the sealing electrodes and comprising a nonconductive member, terminal electrodes disposed at both ends of the nonconductive member, and a fusible element electrically connected to the terminal electrodes; and brazing rings sealing between the ceramic tube and each of the sealing electrodes, wherein the ceramic tube is joined to the sealing electrodes by melting of the brazing rings.