Led illuminating device and light engine thereof
AssigneeFoxconn Technology Co., Ltd.
InventorTAY-JIAN LIU
Life of this patent
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Abstract
An LED illuminating device includes an optical section, an electrical section, and a heat dissipation section therebetween. The optical section includes a light source. The electrical section electrically connects with the light source. The heat dissipation section includes a mounting seat, a heat pipe and a heat sink. The heat pipe includes an evaporation section fixed on the mounting seat and thermally connecting with the light source and a condenser section. The heat sink includes a plurality of umbrella-shaped fins each including a main body perpendicular to the condenser section of the heat pipe and two flanges angling downward from two opposite edges of the main body towards the light source. A plurality of air venting holes are defined in the main body and the flanges of each fin.
Claims15
An LED illuminating device, comprising:
- an optical section at a bottom end of the LED illumination device, the optical section comprising a light source and a light output housing around the light source;
- an electrical section at a top end of the LED illumination device, the electrical section electrically connecting with the light source;
- and
- a heat dissipation section between the optical section and the electrical section comprising:
- a mounting seat to which the light source is attached;
- a heat pipe comprising an evaporation section and at least one condenser section, the evaporation section fixed on the mounting seat and thermally connected with the light source;
- and
- a heat sink in which the at least one condenser section of the heat pipe is received, the heat sink comprising a plurality of fins each comprising at least one umbrella-shaped portion, each of the umbrella-shaped portions comprising a main body perpendicular to the at least one condenser section of the heat pipe and two flanges angling downward from two opposite edges of the main body towards the light source, a plurality of air venting holes being defined in the main body and the flanges of each fin, whereby air between each two neighboring fins is heated and rises via the air venting holes to a top side of the heat sink during operation of the LED illuminating device.
A light engine of an LED illuminating device, comprising:
- a light source;
- a mounting seat to which the light source is attached;
- a heat pipe comprising an evaporation section and at least one condenser section, the evaporation section fixed on the mounting seat and thermally connected with the light source;
- and
- a heat sink in which the at least one condenser section of the heat pipe is received, the heat sink comprising a plurality of fins each comprising at least one umbrella-shaped portion, the at least one umbrella-shaped portion comprising a main body perpendicular to the at least one condenser section of the heat pipe and two flanges angling downward from two opposite edges of the main body towards the light source, a plurality of air venting holes being defined in the main body and the flanges of the at least one umbrella-shaped portion of each fin, whereby air between each two neighboring fins is heated and rises via the air venting holes to a top side of the heat sink during operation of the light engine.
Dependencies are inferred from the claim text.