Heat-fusing body

Abstract

The invention relates to a heat-fusing body, comprising a metal shell, temperature-sensitive particles, a front gasket, a rear gasket, drum-shaped springs, a breaking electrode, breaking springs, porcelain beads, a riveting line and a contact line, wherein a port of the metal shell at the connecting position of the contact line and the porcelain beads is sealed by epoxy resin. The heat-fusing body is characterized in that the two ends of each porcelain bead are respectively provided with a convex head. The heat-fusing body has the advantages that the electric insulativity of a finished product can be improved, the used amount of epoxy resin is reduced and the collapse does not easily occur because the port is sealed by the epoxy resin.

Description

technical field [0001] The invention relates to a thermal fuse, in particular to a thermal fuse using temperature-sensitive particles as a heat sensitive body. Background technique [0002] Thermal fuses are also called thermal fuses, which include metal shells, temperature-sensitive particles, front gaskets, rear gaskets, drum springs, breaking electrodes, breaking springs, ceramic beads, riveting wires and contact wires. The riveting wires are riveted on One end of the metal shell, and then temperature-sensitive particles, gaskets, drum springs, rear gaskets, breaking electrodes, breaking springs and ceramic beads are tightly installed on the metal shell in turn, and the contact wires are connected to the ceramic beads. The metal shell port at the connection is sealed with epoxy resin, because the current ceramic bead has a protruding head at one end, and the other end is flat; because the shape of the epoxy resin seal is conical, and the ceramic bead is flat when insta...

AI Technical Summary

Problems solved by technology

[0002] Thermal fuses are also called thermal fuses, which include metal shells, temperature-sensitive particles, front gaskets, rear gaskets, drum springs, breaking electrodes, breaking springs, ceramic beads, riveting wires and contact wires. The riveting wires are riveted on One end of the metal shell, and then temperature-sensitive particles, gaskets, drum springs, rear gaskets, breaking electrodes, breaking springs and ceramic beads are tightly installed on the metal shell in turn, and the contact wires are connected to the ceramic beads. The metal shell port at the connection is sealed with epoxy resin, because the current ceramic bead has a protruding head at one end, and the other end is flat; because the shape of the epoxy resin seal is conical, and the ceramic bead is flat when installed in the metal shell The end of the thermal link is facing the outside of the metal shell, so that the amount of epoxy resin is large, and the epoxy resin seal is prone to collapse, which affects the appearance of the product. At the same time, the electrical insulation of the thermal fuse is not very good.

Images