LED LAMP WITH HEAT SINK ASSEMBLY
First Claim
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1. An LED lamp, comprising:
- a support defining a receiving space therein;
an envelope coupled to the support;
a first heat sink mounted on the envelope and comprising a plurality of fins;
a cylindrical second heat sink received in the envelope and attached to a bottom surface of the first heat sink;
a plurality of LED modules mounted on an outside wall of the second heat sink;
a plurality of heat pipes having evaporating portions sandwiched between the LED modules and the outside wall of the second heat sink, and condensing portions contacting with the first heat sink; and
a drive circuitry accommodated in the space of the support and electrically connected with the LED modules.
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Abstract
An LED lamp includes a support, an envelope, a heat sink assembly and a plurality of LED modules. The envelope is coupled to the support. The heat sink assembly includes a first heat sink mounted on the envelope, a cylindrical second heat sink attached to a bottom surface of the first heat sink and positioned in the envelope, and a plurality of heat pipes. The LED modules are mounted on an outside wall of the second heat sink. The heat pipes have condensing portions embedded in the bottom surface of the first heat sink and evaporating portions sandwiched between the outside wall of the second heat sink and the LED modules.
30 Citations
19 Claims
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1. An LED lamp, comprising:
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a support defining a receiving space therein; an envelope coupled to the support; a first heat sink mounted on the envelope and comprising a plurality of fins; a cylindrical second heat sink received in the envelope and attached to a bottom surface of the first heat sink; a plurality of LED modules mounted on an outside wall of the second heat sink; a plurality of heat pipes having evaporating portions sandwiched between the LED modules and the outside wall of the second heat sink, and condensing portions contacting with the first heat sink; and a drive circuitry accommodated in the space of the support and electrically connected with the LED modules. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An LED lamp, comprising:
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a support; an envelope coupled to the support; a heat sink assembly comprising a first heat sink mounted on the envelope, a cylindrical second heat sink attached to a bottom surface of the first heat sink and positioned in the envelope and a plurality of L-shaped heat pipes having condensing portions contacting with the first heat sink and evaporating portions; and a plurality of LED modules mounted on an outside wall of the second heat sink; wherein the evaporating portions of the heat pipes are sandwiched between the LED modules and the outside wall of the second heat sink. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An LED lamp comprising:
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a support; an envelope mounted on a top of the support; a first heat sink mounted on a top of the envelope; a second heat sink secured to a bottom of the first heat sink and received in the envelope; a plurality of LED modules mounted to an outer periphery of the second heat sink; and a plurality of heat pipes each having a condensing portion embedded in the bottom of the first heat sink and an evaporating portion sandwiched between the outer periphery of the second heat sink and a corresponding LED module. - View Dependent Claims (17, 18, 19)
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Specification