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    • 1. 发明授权
    • Lightweight heat sinks and LED lamps employing same
    • 轻型散热器和采用相同的LED灯
    • US08668356B2
    • 2014-03-11
    • US12979529
    • 2010-12-28
    • Ashfaqul I. ChowdhuryGary R. AllenJoshua I. Rintamaki
    • Ashfaqul I. ChowdhuryGary R. AllenJoshua I. Rintamaki
    • F21V21/00F21V29/00
    • F21V3/00B82Y30/00F21K9/232F21K9/233F21V7/041F21V29/505F21V29/773F21V29/87F21Y2115/10
    • A heat sink includes a thermally conductive layer comprising at least one of fullerenes and nanotubes disposed in a polymeric host. The thermally conductive layer may be disposed on a heat sink body, which may be thermally insulating and/or plastic, and may include surface area enhancing heat radiating structures, such as fins, with the thermally conductive layer being disposed over at least the surface area enhancing heat radiating structures. A light emitting diode (LED)-based lamp embodiment includes the heat sink and an LED module including one or more LED devices secured with and in thermal communication with the heat sink. A method embodiment includes forming the heat sink body and disposing the thermally conductive layer on the heat sink body. The disposing may comprise spray coating. An external energy field may be applied during spray coating to impart a non-random orientation to nanotubes in the polymeric host.
    • 散热器包括导热层,其包含设置在聚合物主体中的富勒烯和纳米管中的至少一种。 导热层可以设置在可以是隔热和/或塑性的散热体上,并且可以包括表面积增强的散热结构,例如翅片,导热层至少设置在表面积 增强散热结构。 基于发光二极管(LED)的灯实施例包括散热器和LED模块,LED模块包括固定在散热片上并与散热器热连通的一个或多个LED器件。 方法实施例包括形成散热体并将导热层设置在散热体上。 处理可以包括喷涂。 可以在喷涂期间施加外部能量场以赋予聚合物主体中的纳米管的非随机取向。