| 摘要 |
<p>PURPOSE: To improve utilization efficiency of heating energy by arranging a heat radiation preventive connecting member composed of a raw material having heat conductivity not more than a specific value of a raw material of electric wires, between a heating means and the electric wires to supply electric power to its heating means. CONSTITUTION: Coppery first arm 301 and second arm 302 are arranged on an RTC heater 4a of a heating means, and a raw material of a power source cord 11 composed of electric wires 40 and 41 is copper. An iron heat radiation preventive member 202 is arranged between the electric wire 41 and the second arm 302, and its one end is fastened to a free end part of the second arm 302 by a machine screw, and the other end is connected to the electric wire 41. A fuse 6, a coppery electric wire 42 and an iron heat radiation preventive member 201 are arranged in order between the electric wire 40 and the first arm 301, and are fastened to a free end part of the first arm 301 by a machine screw, and the other end is connected to an electric wire 42 using copper as a raw material. Heat conductivity of iron is 72K/W.m<-1> .K<-1> at 100 deg.C, and the heat conductivity can be set not more than 1/5 as compared with heat conductivity 395K/W.m<-1> .K<-1> of copper.</p> |
