Energy-saving down lamp

Abstract

The application discloses an energy-saving down lamp, which comprises a down lamp shell, a light collecting cup and a lampshade; and further comprises a telescopic flow guiding and heat dissipating mechanism. The energy-saving down lamp structure with the telescopic flow guiding and heat dissipating mechanism is designed. The telescopic action of the heat conducting fin and the positioning action of the auxiliary mounting mechanism are linked through a driving mechanism. The heat conducting fin can be contracted to reduce the overall outer diameter of the down lamp before installation, so as to adapt to the standard ceiling opening and avoid installation interference. When the down lamp is installed, the heat conducting fin is synchronously extended, so that the maximum heat dissipation area is formed. The gradually changed flow guiding channel formed at the same time can strengthen the natural convection heat dissipation effect, thereby effectively reducing the working temperature of the light source, delaying the light decay of the light source, helping to maintain the high light efficiency output of the light source for a long time, and further reducing the operating power of the light source under the same lighting brightness requirement. The energy-saving down lamp is particularly suitable for the ceiling embedded installation scene in the home decoration and commercial places.

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