METHOD FOR AUTONOMOUS LIGHTING AT NEGATIVE AMBIENT TEMPERATURE Russian patent published in 2022 - IPC F21S9/03 

FIELD: lighting equipment.

SUBSTANCE: invention relates to methods for autonomous outdoor electric lighting in conditions of negative temperatures, designed to illuminate highways, roads, etc. A method for autonomous lighting at negative ambient temperature, where a lighting lamp is connected by a signal from a light sensor and a motion sensor to a power source in the dark and turned off in the daytime. Moreover, in the daytime, a non-freezing liquid is heated from a solar battery in a heat-insulated container, to which a thermoelectric element is attached with one side in the opening of the thermal insulation, which provides electricity for the lighting lamp, the other side of which is affected by a cold environment; the opening in the thermal insulation is automatically closed during the daytime with a heat-insulating screen and opened at night.

EFFECT: simplification of operation and increase of reliability in the method for autonomous illumination of objects in conditions of negative temperatures by accumulating thermal energy from a solar battery during daylight hours in a non-freezing liquid located in a thermally insulated container, followed by its conversion into electrical energy using a thermoelectric element, which is fed to a lighting lamp.

1 cl, 1 dwg