LED LAMP HAVING HEAT DISSIPATION STRUCTURE
First Claim
Patent Images
1. An LED lamp comprising:
- a lamp base defining a plurality of vents therein;
a heat sink comprising a cylinder at a centre thereof, the cylinder having a through hole defined therein, which communicates with the vents of the lamp base and cooperates with the vents to form an air passage communicating with ambient air; and
a plurality of the LED modules attached to a periphery of the heat sink.
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Abstract
An LED lamp includes a lamp base, a heat sink and a plurality of LED modules. The lamp base includes a lamp holder and an enclosure connecting with the lamp holder. The enclosure defines a plurality of vents therein. The heat sink is mounted on the lamp base and includes a cylinder at a centre thereof and a plurality of fins surrounding the cylinder. The cylinder has a through hole therein, which communicates with the enclosure. The through hole, the enclosure and the vents cooperatively form an air circulation passage communicating with ambient air. The LED modules are mounted on outmost ones of the fins of the heat sink, respectively.
117 Citations
20 Claims
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1. An LED lamp comprising:
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a lamp base defining a plurality of vents therein; a heat sink comprising a cylinder at a centre thereof, the cylinder having a through hole defined therein, which communicates with the vents of the lamp base and cooperates with the vents to form an air passage communicating with ambient air; and a plurality of the LED modules attached to a periphery of the heat sink. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An LED lamp comprising:
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a lamp base comprising a lamp holder and an enclosure connecting with the lamp holder, the enclosure defining a plurality of vents therein; a heat sink mounted on the lamp base and comprising a cylinder at a centre thereof and a plurality of second fins surrounding the cylinder, the cylinder having a through hole therein, which communicates with the enclosure, the through hole, the enclosure and the vents cooperatively forming an air circulation passage communicating with ambient air; and a plurality of LED modules thermally contacting with outmost ones of the second fins of the heat sink, respectively. - View Dependent Claims (13, 14, 15, 16, 17)
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18. An LED lamp comprising:
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a base having a lamp holder adapted for connecting with a lamp socket, an inner space and a plurality of vents communicating the inner space with ambient air; a heat sink mounted on the base, having a cylindrical body defining a hole communicating with the inner space of the base and a plurality of fins surrounding the cylindrical body; and a plurality of LED modules mounted on outermost ones of the plurality of fins, respectively, and thermally connecting therewith; wherein when the LED modules are activated, at least a part of heat generated by the LED modules is dissipated to the ambient via air flowing through the hole of the cylindrical body of the heat sink and the inner space of the base. - View Dependent Claims (19, 20)
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Specification