| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED-lighting device which can efficiently dissipate heat generated from an LED device, and which excels in maintenability, because of easy fitting to a box of the lighting device. <P>SOLUTION: The LED lighting device is provided with a substrate 1, having a concave 7 on its front surface wherein a reflection material 2 is provided; an LED element 3 mounted onto the bottom surface of the concave 7; a plurality of fins 1a provided to the rear side of the substrate 1; a box 5 of the lighting device, having grooves 5a to which the fins 1a are fitted detachably, respectively; engaging parts 1b and 1c which are projected from the side surface side of the fins 1a and partly comprises the fin; and engaged parts 5b and 5c which are formed in the grooves 5a of the casing 5 that are to be engaged with the engaging parts 1b and 1c so as to fix the substrate 1 and the box 5 of the lighting device. <P>COPYRIGHT: (C)2007,JPO&INPIT |
