Patent ID: 9240300
Filing Date: 2016-01-19
CPC Classification: H01C,H01H,H05B

Claim Text:
1. A device comprising: a thermal fuse; a wire wound resistor; a first lead wire of the thermal fuse; a second lead wire of the thermal fuse; a hollow ceramic tube; a low melting point alloy wire welded between the first lead wire of the thermal fuse and the second lead wire of the thermal fuse; a fluxing promoting agent; an epoxy resin used to seal two ends of the hollow ceramic tube; a first metal cap and a second metal cap of the wire wound resistor to lock the two ends of the thermal fuse to form a tight integration and electrically connect with two ends of the wire wound resistor; wherein the hollow ceramic tube provides housing for the thermal fuse; wherein the wire wound resistor is wounded on the outer surface of the hollow ceramic tube; wherein the first lead wire of the thermal fuse and the second lead wire of the thermal fuse respectively pass through the first metal cap and the second metal cap; and wherein the device is encapsulated in the epoxy resin to be insulated, or applied with silicone or inorganic material as an insulation layer.