Heat dissipation structure of a lighting engine, a manufacturing method thereof and a lighting system comprising the structure
AssigneeOSRAM GmbH
InventorsChenglong Dai, Nimchung Ku, Canbang Yang, Haiping Yuan
Life of this patent
Estimating the term…
Abstract
A heat dissipation structure for a lighting engine, may include: a primary heat sink, and an extended heat sink, wherein the primary heat sink has a first contact surface, and the extended heat sink has a second contact surface provided opposite to the first contact surface, the first contact surface and the second contact surface directly contacted each other with no additional layer therebetween.
Claims17
A heat dissipation structure for a lighting engine, comprising:
- a primary heat sink, and an extended heat sink, wherein the primary heat sink has a first contact surface, and the extended heat sink has a second contact surface provided opposite to the first contact surface, the first contact surface and the second contact surface directly contacted each other with no additional layer therebetween.
The heat dissipation structure according to claim 16, wherein the flatness of the flat surfaces is <=0.05 mm.
A lighting system comprising a heat dissipation structure for a lighting engine, the heat dissipation structure comprising:
- a primary heat sink, and an extended heat sink, wherein the primary heat sink has a first contact surface, and the extended heat sink has a second contact surface provided opposite to the first contact surface, the first contact surface and the second contact surface directly contacted each other with no additional layer therebetween.
A manufacturing method of a heat dissipation structure of a lighting engine, the method comprising:
- a) providing a primary heat sink having a first contact surface and an extended heat sink having a second contact surface;
- and b) machining the first contact surface and the second contact surface and then the first contact surface and the second contact surface directly contact each other with no additional layer therebetween.
Dependencies are inferred from the claim text.