LED LAMP WITH HEAT PIPE COOLING Russian patent published in 2017 - IPC F21S8/00 

FIELD: lighting.

SUBSTANCE: LED lamp is made with a hollow 3D LED-module from heat-conducting material with a neck with a ring support flange bearing means of the conductor and installation of the lamp in the object (in the lighting device), and in the axial channel of the neck and cavity of the LED-module a shell with zones of evaporation and vapor transportation of liquid two-phase heat-transfer fluid, filling the specified shell of the removable heat pipe (HP), is installed. The HP shell, which is in thermal contact with the walls of the LED-module, protrudes from the neck with the support flange to the surrounding space in such a way that a part of its shell with a zone of condensation of heat-transfer medium vapor can be covered by a radiator to cool under free or forced convection. The removable HT of the LED-lamp can be made in a shell with a wick with a capillary structure, attached to its walls and moistened with a two-phase heat-transfer medium with a boiling point of 40-150°C, or in a non-wick shell, i. e. on the basis of a thermosyphon filled with the same heat-transfer medium in a volume not exceeding 33% of the HP volume. The 3D-module can be made with a solid or releasable neck with a support flange, installed in thermal contact with a flat wall of the lamp-carrying object, that provides the conductive heat transfer not only to the walls of the HP shell, but also in the support flange with a ring compartment for the power line transducer. The LED-lamp can be made in a translucent bulb or without it with a compact 3D LED-module on LEDs 0.5-3 W and more and is effective to replace high-pressure gas-discharge lamps with power up to 400 W.

EFFECT: increase in the efficiency of lamp cooling in such devices and improvement of the performance characteristics by simplifying its installation and the replacement procedure in the operation of the component parts, mainly when reusing the heat pipe.

10 cl, 3 dwg