| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat sensor capable of more accurately determining a fire, and to miniaturize and thin the heat sensor 1 by integrally mounting an own temperature sensor and a non-contact temperature sensor. SOLUTION: The heat sensor includes: a body 3; a heat absorbing plate 11 mounted on the body 3; a thermopile 7 mounted away from the heat absorbing plate 11 in a position facing an inner surface 11a of the heat absorbing plate 11; and a thermistor 9 mounted on the body 3. The body 3 is covered with a housing 5 having a truncated cone portion 5b, and the heat absorbing plate 11 is mounted on a top surface 5c of the truncated cone portion 5b. COPYRIGHT: (C)2010,JPO&INPIT
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