For a headlight comprising a plurality of light-emitting diode arrangements (LG) arranged in a manner distributed in planar fashion on a carrier plate (TP), a cooling device for dissipating thermal power losses arising in the individual light-emitting diode arrangements, in which cooling device a plurality of flow channels extending parallel in terms of flow engineering are provided. The individual flow channels each contain a heat sink (KK), around which flows the partial air flow through the flow channel (FR) for the transfer of heat and which is connected to the relevant assigned light-emitting diode arrangement in a manner exhibiting good thermal conductivity.
Headlight comprising light-emitting diodes
2017-07-04
Patent
Elektronische Ressource
Englisch
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / F21Y Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend die Form oder die Art der Lichtquellen oder die Farbe des emittierten Lichts , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED |