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LIGHT EMITTING DIODE BULB WITH CENTRAL AXIS BIDIRECTIONAL CONVECTION HEAT DISSIPATION STRUCTURE

  • US 20150338028A1
  • Filed: 07/31/2015
  • Published: 11/26/2015
  • Est. Priority Date: 12/23/2013
  • Status: Abandoned Application
First Claim
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1. A light emitting diode (LED) bulb with a bidirectional convection heat dissipation structure, the LED bulb comprising:

  • a bulb socket having two electrodes;

    a cover made of a light permeable material, and having a receiving space therein and a bottom side provided on a top side of the bulb socket, wherein the outer periphery of the cover adjacent to the bottom side thereof is provided with at least one ventilation hole, and a top side of the cover is formed with at least one convection hole, so as to allow air inside and outside of the cover to communicate with each other through the ventilation hole and convection hole;

    a separating unit provided at a position between the lower edge of the ventilation hole and the bulb socket;

    a driving circuit board provided at a position between the separating unit and the bulb socket, wherein the driving circuit board is electrically connected to the electrodes, respectively; and

    at least one LED circuit board provided within the receiving space and electrically connected to the driving circuit board, wherein the bottom end of the LED circuit board is positioned on the top side of the separating unit such that the LED circuit board can communicate with the cold ambient air outside the bulb through a bidirectional convection heat dissipation pathway formed by the ventilation hole, the receiving space between the LED circuit board and the cover, and the convection hole.

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