Patent ID: 8816867
Filing Date: 2014-08-26
Classification: G08B

Abstract:
1. A detector for detecting a fire and gas, comprising: a detector cover that receives hot air current; a fire sensor, placed inside the detector cover, for detecting a fire; and an electrochemical gas sensor, placed inside the detector cover, for detecting gas with an electrode by contacting the gas with an electrolyte solution, wherein, in the detector cover, a container for containing a detecting space section for detecting a fire by the fire sensor is provided and an intake for causing the hot air current to flow into the container is formed, and wherein an opening hole for introducing gas included in the hot air current into the electrochemical gas sensor is formed so as to be open to a flow path of the hot air current from a surface of the detector cover through the intake to the detecting space section, wherein the opening hole is formed in a plate-like body that separates the electrochemical gas sensor and the container, wherein the fire sensor is a smoke sensor that optically detects smoke, wherein the detecting space section is a chamber serving as a smoke detecting space, wherein the container is a chamber container for containing the chamber, wherein the intake is a smoke intake for causing smoke included in the hot air current to flow into the chamber container, and wherein the opening hole is formed at a position communicated with a space section between the chamber and the smoke intake in the chamber container so that the hot air current flows through the smoke intake and the opening hole sequentially and without routing through the chamber to reach the electrochemical gas sensor.