公开(公告)号：US20140177226A1

公开(公告)日：2014-06-26

申请号：US13833006

申请日：2013-03-15

Applicant: Cree, Inc.

Inventor： David P. Goelz ,  Craig Raleigh ,  Don Miletich ,  Kurt S. Wilcox

IPC: F21V29/00

CPC classification number: F21V29/70 ,  F21V19/0055 ,  F21V29/2212 ,  F21V31/005 ,  F21W2131/103

Abstract: LED lighting apparatus including (a) a circuit board which has a plurality of light sources spaced thereon, (b) a heat sink to which the circuit board is thermally coupled, and (c) a securement structure which includes a rigid peripheral structure applying force along a peripheral area of the circuit board toward the heat sink to increase the thermal coupling therebetween to facilitate heat transfer from the light sources during operation. The lighting apparatus may also include an optical member with a plurality of lens portions over corresponding light sources and a peripheral region, the securement structure engaging the peripheral region which sandwiches a gasket against the heat sink. The apparatus may use manipulation involving surface convexity, such as bowing, thereby allowing the securement structure to further facilitate surface-to-surface thermal coupling between the circuit board and the heat sink.

Abstract translation: LED照明装置，包括：（a）具有多个光源的电路板，（b）电路板与热耦合的散热器;（c）固定结构，其包括刚性外围结构施加力 沿着电路板的周边区域朝向散热器以增加它们之间的热耦合，以便于在操作期间来自光源的热传递。 照明装置还可以包括在对应的光源上具有多个透镜部分的光学部件和周边区域，该固定结构接合将垫圈夹在散热片上的周边区域。 该装置可以使用涉及表面凸起的操作，例如弯曲，从而允许固定结构进一步促进电路板和散热器之间的表面到表面的热耦合。