| 摘要 |
A LED lighting unit includes heat tubes with heating, transport and cooling zones. The heating zone of each heat tube is placed lower than its transport zone. The heat tubes have first bend within the transport zone. Within the heating zone of each bent heat tube, with provision of thermal contact, at least one module of powerful light-emitting diodes is installed, those are connected to electric power supply source, and at least one transparent luminous flux diffuser, and the cooling zones are arranged with developed heat exchange surface. Within the transport zone of the bent heat tubes a second bend is arranged, cooling zone of each heat tube is directed upwards from the second bend. The cooling zones of the heat tubes are placed closer to the vertical axis of the LED lighting device compared to the heating zones of those. Heating zone of each heat tube with respective module of powerful light-emitting diodes is placed in separate transparent luminous flux diffuser. |
