| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a structure of an LED lighting fixture with extinction of heat improved. <P>SOLUTION: The LED lighting fixture includes: at least one LED chip 200; a metal plate 204 having at least one LED chip arranged; an LED module 250 in electric contact with at least one LED chip; and a housing 206 in contact with the metal plate and having the LED module installed inside. The housing includes: a resin layer 205 with an internal surface and an external surface; and a metal layer 207 arranged on at least a part of the external surface of the resin layer so as to clad it in contact with the metal plate. The resin layer includes an electrically insulating thermoplastic resin composition, and the metal layer includes an aluminum alloy, and at the same time, has a thermal conductivity from at least 20 Watts per meter per Kelvin (W/m, K) to 40 W/m, K, and a thermal emissivity of 0.5 to 0.8. <P>COPYRIGHT: (C)2013,JPO&INPIT |
