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LED LAMP WITH HEAT SINK ASSEMBLY

  • US 20090213592A1
  • Filed: 02/21/2008
  • Published: 08/27/2009
  • Est. Priority Date: 02/21/2008
  • Status: Active Grant
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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