HEAT SINK FOR ON-VEHICLE LED LAMP

PROBLEM TO BE SOLVED: To provide a heat sink for an on-vehicle LED lamp, which enables efficient heat dissipation by radiation.SOLUTION: A heat sink for an on-vehicle LED lamp comprises an LED element mounted on a substrate and a plate-like heat radiation surface integrally and continuously formed a...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUDA HARUYUKI, KONISHI HARUYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a heat sink for an on-vehicle LED lamp, which enables efficient heat dissipation by radiation.SOLUTION: A heat sink for an on-vehicle LED lamp comprises an LED element mounted on a substrate and a plate-like heat radiation surface integrally and continuously formed around this LED element. The heat sink for an on-vehicle LED lamp is formed of aluminum or aluminum alloy having a specific thermal conductivity λ. When the surface emissivity of the heat sink is determined to be a specific surface emissivity and the thickness of the heat sink is determined to be in a range from 0.8 to 6 mm, the total projection area of all the heat dissipation surfaces of this heat sink is determined to be in a range from 19,000 to 60,000 mm, and thereby, a thermal resistance value R is determined to be a small value of 4.0 (K/W).