PTC heating device
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United States of America Patent
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Oct 17, 1989
Grant Date -
N/A
app pub date -
Apr 19, 1988
filing date -
Apr 21, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A PTC heating device is adapted to be used as a heat source for an electric vaporizer which is adapted to heat liquid medicine, e.g., liquid insecticide, aromatic liquid, or the like, to vaporize it. The PTC heating device includes a casing in which an electrode structure including at least one PTC thermistor having electrodes arranged on both surfaces thereof and two electrode members interposing the PTC thermistor therebetween is received. The PTC heating device further includes a heat-radiating member mounted through a heat-conducting member with respect to the casing and for heating an absorber having sucked up liquid medicine from a reservoir having the liquid medicine contained therein to vaporize the liquid medicine. One of the electrodes of the PTC thermistor is in close contact with a flat surface of the heat-conducting member through one of two electrode members, so that heat generated at the PTC thermistor is efficiently transmitted to the heat-radiating member through the heat-conducting member.
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