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US 10,208,915 B2Granted
Thermal function of headlight sealing cap
AssigneeLumileds LLC
InventorsMartinus Petrus Creusen, Lukas Kuepper
Life of this patent
Estimating the term…
Abstract
A headlight unit 10, 110 is described including a reflector 12 and a lamp mounting cavity 20. A lamp 30, 130 is mounted within the lamp mounting cavity 20. The lamp mounting cavity 20 is sealed by a cap 40 of partly flexible material. The cap 40 is provided as a heat spreader and dissipation element in thermal contact with the lamp 30.
Claims19
Headlight unit including:
- a reflector with a reflector neck;
- a lamp mounting cavity provided at said reflector neck;
- a lamp mounted within said lamp mounting cavity;
- an outer reflector housing with a cylindrical wall and a peripheral portion extending from said cylindrical wall, said peripheral portion being in contact with said reflector, said cylindrical wall being around said reflector neck to form concentric rings;
- and
- a cap integrally formed in a single piece of at least partly flexible material devoid of any additional sealing element for fixing said cap, wherein:
- said cap extends to and flexibly surrounds said cylindrical wall to close off said lamp mounting cavity sealing said mounting cavity against dust and moisture,
- said cap is dismountable from said cavity separate from said lamp,
- said cap is provided as a heat spreader and dissipation element in thermal contact with said lamp, and
- said cap has a thermal conductivity of more than 50 W/mK.
7 more elements
Dependencies are inferred from the claim text.