EXPLOSION-PROOF STRUCTURE FOR POWER SOURCE UNIT, EXPLOSION-PROOF TYPE BATTERY UNIT, AND EXPLOSION-PROOF TYPE GAS ALARM

摘要

Provided are an explosion-proof structure for a power source unit, which can suppress the temperature rise of a secondary battery at a short-circuiting time to a low level, thereby to acquire a highly reliable explosion-proof performance, and an explosion-proof type battery unit and an explosion-proof type gas alarm. A radiating member made of a metal is so arranged on the outer periphery of a secondary battery as closely contacts at least partially, thereby to constitute the power source unit explosion-proof structure in the explosion-proof type device using the secondary battery as a driving power source. The explosion-proof type battery unit includes a cylindrical secondary battery, and a radiating member made of a metal and mounted closely at least a portion thereof on the outer periphery of that secondary battery. The explosion-proof type gas alarm is constituted to form the explosion-proof structure for the power source unit either by using the explosion-proof type battery unit or by mounting the radiating member in the housing of the gas alarm body.