| 摘要 |
PURPOSE: An LED signboard lamp converter case is provided to prevent damage to a component and a semiconductor by heat generated between a PCB substrate and a semiconductor device through a heat sink, a heat pipe, and a case. CONSTITUTION: A lower case(110) has a mounting unit(112) in the bottom-sidewall(111). An upper case(120) is closely contacted to the external wall of the bottom-sidewall and the inner wall of the upper sidewall. A PCB substrate(130) is installed in the bottom of the lower case. A heat sink is attached to a semiconductor device and discharge heat. A wire hole(152) through which a wire is drawn is provided. A cover(150) is combined with the rubber packing of the wire hole. |
