LED light bulbs in pyramidal structure for efficient heat dissipation
View Patent ↗Disclosed is an LED light bulb having safe and efficient heat dissipation, while also providing maximum light distribution by providing multiple printed circuit boards arranged in a pyramidal structure, having multiple LEDs. The multiple printed circuit boards are connected by conductor wires contained within a transparent housing, so that the multiple printed circuit boards sit on a base of the LED light bulb. A bottom printed circuit board may also be employed if additional circuitry is desired.
1. A method for housing multiple light emitting diodes in a light emitting diode light bulb comprising:
providing a transparent housing and a base that forms an electrical socket;
providing a plurality of printed circuit boards having different sizes;
mounting said light emitting diodes on outer peripheral edges of said plurality of printed circuit boards so that said light emitting diodes face in a substantially uniform direction that is substantially perpendicular to said plurality of said printed circuit boards;
constructing a pyramidal structure of said plurality of printed circuit boards by stacking said plurality of printed circuit boards in substantially parallel planes along an axis to form substantially parallel layers of said printed circuit boards, said plurality of printed circuit boards forming said pyramidal structure such that said outer peripheral edges of adjacent printed circuit boards of said plurality of printed circuit boards do not extend substantially over said light emitting diodes that are disposed around said outer peripheral edges of said plurality of printed circuit boards and do not substantially block light and heat emitted from said light emitting diodes in an axial direction, said printed circuit boards stacked substantially symmetrically along said axis to provide an axial spacing between said plurality of printed circuit boards, so that said light emitting diodes on said outer peripheral edge on each said printed circuit board layer do not block light and heat emitted by said light emitting diodes from adjacent layers of said printed circuit boards in a direction that is substantially perpendicular to said axis;
connecting said multiple printed circuit boards having said multiple light emitting diodes with connector wires.
2. The method of claim 1 further comprising;
disposing a bottom printed circuit board on said base that provides additional circuitry.
3. A light emitting diode light bulb comprising:
a first printed circuit board;
a first layer of light emitting diodes disposed on an outer peripheral edge of said first printed circuit board;
a second printed circuit board connected to said first printed circuit board so that said second printed circuit board is substantially parallel to said first printed circuit board to form a pyramidal structure, said first printed circuit board being spaced apart from said second printed circuit board so that said second printed circuit board does not block light and heat emitted from said first layer of light emitting diodes in a direction that is substantially parallel to said first printed circuit board, said second printed circuit board having a size and shape so that said second printed circuit board does not substantially block light and heat emitted from said first layer of light emitting diodes in a direction that is substantially perpendicular to said first printed circuit board;
a second layer of light emitting diodes disposed on the periphery of said second printed circuit board so that said first layer of light emitting diodes and said second layer of light emitting diodes face in a substantially uniform direction which is substantially perpendicular to said first printed circuit board and said second printed circuit board;
a transparent housing that encloses said first and second printed circuit boards;
a base that forms an electrical socket;
at least one additional printed circuit board that is connected to an adjacent printed circuit board so that said at least one additional printed circuit board is substantially parallel to said adjacent printed circuit board and said first printed circuit board to form said pyramidal structure, said at least one additional printed circuit board being spaced apart from said adjacent printed circuit board so that said at least one additional printed circuit board does not block light and heat emitted from a layer of adjacent light emitting diodes disposed on said adjacent printed circuit board in a direction that is substantially parallel to said adjacent printed circuit board and said first printed circuit board, said at least one additional printed circuit board having a size and shape so that said at least one additional printed circuit board does not substantially block light and heat emitted from said layer of adjacent light emitting diodes disposed on said adjacent printed circuit board in a direction that is substantially perpendicular to said adjacent printed circuit board;
at least one additional layer of light emitting diodes disposed on said at least one additional printed circuit board so that said at least one additional layer of light emitting diodes and said layer of adjacent light emitting diodes disposed on said adjacent printed circuit board and said first layer of light emitting diodes face in a substantially uniform direction, which is substantially perpendicular to said first printed circuit board.