HIGH-POWER LED LAMP WITH COOLING Russian patent published in 2015 - IPC F21S8/00 F28D15/04 

FIELD: electricity.

SUBSTANCE: lamp comprises a hollow three-dimensional LED module, which may be shaped as rectangular prism, truncated icosahedron or two truncated pyramids interconnected by their bases, in which cavities or in each of them, in thermal contact, there is evaporation zone shell of heat transfer tube (HTT) with core having capillary structure and filling partially the above shell with low-temperature liquid two-phase heat carrier that wets the core. HTT evaporation zone through adiabatic zone is connected to zone of vapour condensation of the above heat carrier in environment. Part of evaporation zone and/or adiabatic zone may be surrounded by heat insulated circular section with the supply mains electronic converter coupled to LED module and lamp-base. Liquid two-phase heat carrier may be selected out of group of alcohols, freon or distilled water with boiling temperature varying within range of 36-145°C, which ensure transportation of heat carrier in HTT shell at random orientation of the lamp in space and operating ability in evaporation mode and/or boiling mode. LEDs with short-wave length radiation, and namely LEDs with dark blue, blue or violet radiation may be used in the lamp with conversion into white radiation by luminophor placed at distance and applied to lamp bulb walls or integrated into them. LED lamp module can be also implemented with LEDs of white, red, green and yellow radiation and installed in heat contact at the sell of HTT evaporation zone.

EFFECT: improved efficiency and power of LED lamps up to the level of 20-120 W.

9 cl, 4 dwg, 1 tbl