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LED lighting assembly with improved heat management

  • US 7,121,680 B2
  • Filed: 08/25/2004
  • Issued: 10/17/2006
  • Est. Priority Date: 12/10/2001
  • Status: Expired due to Term
First Claim
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1. A portable flashlight assembly comprising:

  • at least one battery, said battery having a first and second electrical contact;

    a flashlight head assembly including,a single light emitting diode having a mounting base, said mounting base having a heat transfer plate on a rear surface thereof and a first and second contact leads extending from the sides thereof,a mounting die, said mounting die being thermally conductive, said mounting die having a rear wall with a top surface, anda circuit board received adjacent said top surface of said rear wall of said mounting die, said circuit board having an aperture therethrough and first and second electrically conductive contact members thereon adjacent said aperture,said light emitting diode being received on said circuit board wherein said heat transfer plate extends through said aperture in said circuit board and is in thermal communication with said top surface of said mounting die, said first and second contact leads being positioned in electrical communication with said first and second contact members;

    an exterior enclosure; and

    means for selectively energizing said light emitting diode disposed between and in electrical communication with one of said contacts of said battery and said circuit board.

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