| 摘要 |
A resistance attach thermal fuse is provided to realize the miniaturization of a main body and the compaction of a circuit body for protecting a secondary battery, and to melt one fuse element part authentically than the other fuse element part. A resistance attach thermal fuse has both sided membrane electrode(a, b) and in-between membrane electrode(2) on one side(101) of a substrate(1). The fuse element(3) is installed through a membrane electrode. A strip-shaped lead conductor(A, B) is welded to the membrane electrode of both sides. The one side of the substrate is covered with an insulation sealing material(5). A front and end membrane electrodes(41,42) are installed on the other side(10). The film resistance (r) is installed through the front and end membrane electrodes. One of the front and end membrane electrodes electrically is wired to the in-between membrane electrode for the fuse element. The side part (c) of the membrane electrode on the other side of both side membrane electrodes is installed. The end part of the strip-shaped lead conductor(C) is welded to the side part. The step height (e) going up to the other side of the substrate is formed in the place adjacent to the edge of the substrate of the strip-shaped lead conductor (A, B). |
