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Invention Grant
CN103238027B 重量轻的散热器和使用该散热器的LED灯 有权

重量轻的散热器和使用该散热器的LED灯
Abstract:
一种散热器（10）包括：散热器本体（12）；设置于散热器本体（12）上的反射层（204），所述反射层具有对于可见光谱中的光大于90%的反射率；以及设置于反射层（204）上的透光保护层206），所述透光保护层对于可见光谱中的光来说是透光的。散热器本体（12）可包括结构散热器本体和设置于结构散热器本体上的导热层202），其中，导热层（202）具有比结构散热器本体（12）高的导热率，并且反射层（204）设置于导热层（202）上。一种基于发光二极管（LED）的灯包括上述散热器（10）和与该散热器固定并与该散热器热连通的LED模块。该基于LED的灯可具有A字形灯泡结构，或可包括定向灯，其中散热器限定空心集光反射器。(56)对比文件US 2007159828 A1,2007.07.12,WO 2009071111 A1,2009.06.11,
Abstract(English):

A heat sink comprises a heat sink body, a reflective layer disposed over the heat sink body that has reflectivity greater than 90% for light in the visible spectrum, and a light transmissive protective layer disposed over the reflective layer that is light transmissive for light in the visible spectrum. The heat sink body may comprise a structural heat sink body and a thermally conductive layer disposed over the structural heat sink body where the thermally conductive layer has higher thermal conductivity than the structural heat sink body and the reflective layer is disposed over the thermally conductive layer. A light emitting diode (LED)-based lamp comprises the aforesaid heat sink and an LED module secured with and in thermal communication with the heat sink. The LED-based lamp may have an A-line bulb configuration, or may comprise a directional lamp in which the heat sink defines a hollow light-collecting reflector.

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