US 2014/0369055 A1 · LED LIGHTING APPARATUS AND HEAT SINK THEREOF

Abstract

In an LED lighting apparatus and a heat sink thereof, the heat sink includes a heat dissipation structure for airflows, and the heat dissipation structure includes: a plurality of heat conductive rods arranged spaced apart from each other in rows and attached at a back side of an LED light engine; each heat conductive rod including an extension portion horizontally extended on at least one side of the LED light engine and a plurality of surfaces; and a plurality of fin modules attached to two corresponding surfaces of each one of the extension portions respectively; each fin module including a plurality of fins spaced apart from each other; wherein an air gap is formed between any two of the adjacent fin modules and a fin channel is formed between any two of the adjacent fins such that air flows through these air gaps and fin channels.

Claims15

Dependent claims

A heat sink comprising a heat dissipation structure for airflows, the heat dissipation structure comprising:

a plurality of heat conductive rods, arranged spaced apart from each other in rows;
each one of the plurality of heat conductive rods comprising an extension portion;
each one of the plurality of heat conductive rod further comprising a plurality of surfaces;
and
a plurality of fin modules, connected to two corresponding surfaces of the plurality of surfaces of each one of said extension portions respectively;
and each one of the fin modules comprising a plurality of fins spaced apart from each other;
wherein an air gap is formed between any two of the plurality of fin modules adjacent to each other and a fin channel is formed between any two of the plurality of fins adjacent to each other such that air flows longitudinally through the plurality of air gaps and the plurality of fin channels.

4 more elements

An LED lighting apparatus, comprising:

an LED light engine;
and
a heat sink comprising a heat dissipation structure for airflows;
the heat dissipation structure comprising:
a plurality of heat conductive rods, arranged spaced apart from each other in rows and connected at a rear side of the LED light engine;
each one of the plurality of heat conductive rods comprising an extension portion extended horizontally on at least one side of the LED light engine;
each one of the plurality of heat conductive rod further comprising a plurality of surfaces;
and
a plurality of fin modules, connected to two corresponding surfaces of the plurality of surfaces of each one of the extension portions respectively;
and each one of the fin modules comprising a plurality of fins spaced apart from each other;
wherein an air gap is formed between any two of the plurality of fin modules adjacent to each other and a fin channel is formed between any two of the plurality of fins adjacent to each other such that air flows longitudinally through the plurality of air gaps and the plurality of fin channels.

8 more elements

Dependencies are inferred from the claim text.

Led lighting apparatus and heat sink thereof

Life of this patent

Led lighting apparatus and heat sink thereof

Life of this patent

Abstract

Claims15