| 摘要 |
FIELD: electrical engineering.SUBSTANCE: LED street illumination device contains a radiator housing (RH) 1 designed so that to enable connection to the support structure 7 and having elements 13 for convective heat dissipation on one side and at least one flat surface - on the other, at least one LED unit designed as having a flat heat-conductive foundation 9 on one side whereof light-emitting semiconductor elements are fixed covered with lens lids 11, the other side of the heat-conductive foundation conjugated with the RH 1 flat surface, a power supply unit 3, a concave surface screen 4; RH 1 is positioned with a gap between the concave surface and the elements 13, its LED unit oriented in the direction away from the screen 4 concave surface.EFFECT: extension of the range of LED street illumination devices and ensuring the long-time possibility of reliable and safe usage of the LED street illumination device outdoors.22 cl, 8 dwg |
