Lighting and/or signalling device with light emitting diodes for motor vehicles
First Claim
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1. A lighting and/or signalling device for a motor vehicle, comprising a housing comprising:
- a plurality of light emitting diodes mounted on a movable mounting plate and forming an orientable light source,at least one cooling device for cooling said plurality of light emitting diodes, wherein said at least one cooling device comprises;
at least one first fixed heat sink, situated partially in the vicinity of a cold spot of the vehicle;
at least one second movable heat sink mounted in the vicinity of the diodes; and
at least one means for effecting a forced air convection between the at least one first fixed heat sink and the at least one second movable heat sink;
at least a portion of said at least one first fixed heat sink being situated in a generally opposed and spaced relationship to said at least one second movable heat sink in order to cool said at least one second movable heat sink.
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Abstract
The invention concerns a lighting and/or signalling device for motor vehicles comprising a housing equipped with a plurality of light emitting diodes mounted on a movable plate, at least one device for cooling the said diodes, comprising at least one first fixed heat sink, at least one second movable heat sink, and at least one means for effecting a forced air convection between the first radiator or heat sink and the second radiator or heat sink.
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Citations
18 Claims
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1. A lighting and/or signalling device for a motor vehicle, comprising a housing comprising:
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a plurality of light emitting diodes mounted on a movable mounting plate and forming an orientable light source, at least one cooling device for cooling said plurality of light emitting diodes, wherein said at least one cooling device comprises; at least one first fixed heat sink, situated partially in the vicinity of a cold spot of the vehicle; at least one second movable heat sink mounted in the vicinity of the diodes; and at least one means for effecting a forced air convection between the at least one first fixed heat sink and the at least one second movable heat sink;
at least a portion of said at least one first fixed heat sink being situated in a generally opposed and spaced relationship to said at least one second movable heat sink in order to cool said at least one second movable heat sink. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A lighting and/or signalling device for a motor vehicle, comprising a housing comprising:
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a plurality of light emitting diodes mounted on a movable mounting plate and forming an orientable light source, at least one cooling device for cooling said plurality of light emitting diodes, wherein said at least one cooling device comprises; at least one first fixed heat sink, situated partially in the vicinity of a cold spot of the vehicle; at least one second movable heat sink mounted in the vicinity of the diodes; at least one means for effecting a forced air convection between the at least one first fixed heat sink and the at least one second movable heat sink; wherein said at least one first fixed heat sink comprises a part external to the housing and a part inserted in the housing; and wherein one end of said at least one first fixed heat sink is situated at a front of the vehicle.
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12. A lighting and/or
signalling device for a motor vehicle, comprising a housing comprising: -
a plurality of light emitting diodes mounted on a movable mounting plate and forming an orientable light source; at least one cooling device for cooling said plurality of light emitting diodes, wherein said at least one cooling device comprises; at least one first fixed heat sink, situated partially in the vicinity of a cold spot of the vehicle; at least one second movable heat sink mounted in the vicinity of the diodes; at least one means for effecting a forced air convection between said at least one first fixed heat sink and said at least one second movable heat sink; wherein said at least one first fixed heat sink comprises a part external to the housing and a part inserted in the housing; and wherein an end of said at least one first fixed heat sink is situated on one side of the vehicle, close to a wing of the vehicle.
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13. A lighting or signaling device for use on a vehicle, said lighting or signaling device comprising:
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a housing having a movable mount; a plurality of light emitting diodes mounted on said movable mount; a plurality of cooling elements associated with said plurality of light emitting diodes for facilitating cooling said plurality of light emitting; and said plurality of cooling elements comprising a fixed heat sink and a movable heat sink, said fixed heat sink having a surface area that is in a generally opposed and spaced relationship to said movable heat sink so that said fixed heat sink may cool said movable heat sink. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification