HEAT AND SMOKE COMBINED TYPE DETECTOR

摘要

PROBLEM TO BE SOLVED: To provide a heat and smoke combined type detector which is easily assembled when it is manufactured and where wiring can be performed so as not to affect detection sensitivity and directivity as far as possible. SOLUTION: In this heat and smoke combined type detector 1 which is provided with a smoke detection chamber S inside a labyrinth body 4 and where smoke is detected in such a manner that a light receiving part 13 receives the scattered light of light emitted from a light emitting part 12 and senses heat by a thermistor 10 installed at the upper part of the chamber S, the chamber S is provided with a light shielding plate 14 which is composed of a wall body continuing almost to the upper and lower faces of the inside of the smoke detection chamber and has a through hole 14a through which the lead wire of the thermistor 10 can be passed.