Patent ID: 7532101

Claim:
A temperature protection device, which is provided with a first polymeric positive temperature coefficient (PTC) device comprising a conductive polymer placed between first and second electrodes, a second polymeric PTC device comprising a conductive polymer placed between third and fourth electrodes, a first metal member installed between and bonded to the first electrode of the first polymeric PTC device and the third electrode of the second polymeric PTC device, and a second metal member installed between and bonded to the second electrode of the first polymeric PTC device and the fourth electrode of the second polymeric device, and which, when the ambient temperature exceeds a prescribed temperature, terminates the current-flowing state between the first electrode of the first polymeric PTC device and the fourth electrode of the second polymeric PTC device by means of the first and second metal members, wherein the conductive polymers of the first and second polymeric PTC devices thermally expand when the ambient temperature exceeds the prescribed temperature, and the first and second metal members comprise a material that will melt as a result of heat generated when the conductive polymer thermally expands.