LED lamp module
First Claim
1. A light emitting diode (LED) lamp module comprising:
- a generally circular metal core printed circuit board including a first surface and a second surface;
at least one LED disposed centrally on the first surface of the metal core printed circuit board; and
a flat annular printed circuit board including a current driver circuit for powering the at least one LED, the current driver circuit disposed along a first surface of the annular printed circuit board, the annular printed circuit board being disposed around the at least one LED and electrically coupled to the at least one LED, the first surface of the annular printed circuit board being in a face to face relationship with the first surface of the metal core printed circuit board,wherein the second surface of the metal core printed circuit board is directly mounted in a face to face relationship with a host fixture and heat generated by the at least one LED is conducted to the host fixture via the metal core printed circuit board wherein the metal core printed circuit board is spaced apart from the annular printed circuit board by at least one electrically conductive and thermally conductive standoff, wherein the at least one electrically conductive and thermally conductive standoff electrically grounds the annular printed circuit board to the metal core printed circuit board and conducts heat generated by the annular printed circuit board to the metal core printed circuit board.
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Accused Products
Abstract
An LED lamp module designed to be easily retrofitted into existing incandescent based light fixtures with minimum modification is provided. The LED lamp module includes a generally circular metal core board including a first surface and a second surface; at least one LED disposed centrally on the first surface of the metal core board; and a flat annular printed circuit board including a current driver circuit for powering the at least one LED, the annular printed circuit board being disposed around the at least one LED and electrically coupled to the at least one LED, wherein the second surface of the metal core board is configured to contact a host fixture and heat generated by the at least one LED is conducted to the host fixture. The LED lamp module uses the host light fixture as a heat sink to transfer and dissipate heat to the external environment.
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Citations
16 Claims
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1. A light emitting diode (LED) lamp module comprising:
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a generally circular metal core printed circuit board including a first surface and a second surface; at least one LED disposed centrally on the first surface of the metal core printed circuit board; and a flat annular printed circuit board including a current driver circuit for powering the at least one LED, the current driver circuit disposed along a first surface of the annular printed circuit board, the annular printed circuit board being disposed around the at least one LED and electrically coupled to the at least one LED, the first surface of the annular printed circuit board being in a face to face relationship with the first surface of the metal core printed circuit board, wherein the second surface of the metal core printed circuit board is directly mounted in a face to face relationship with a host fixture and heat generated by the at least one LED is conducted to the host fixture via the metal core printed circuit board wherein the metal core printed circuit board is spaced apart from the annular printed circuit board by at least one electrically conductive and thermally conductive standoff, wherein the at least one electrically conductive and thermally conductive standoff electrically grounds the annular printed circuit board to the metal core printed circuit board and conducts heat generated by the annular printed circuit board to the metal core printed circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A lighting assembly comprising
a metallic host fixture comprising: -
a generally cylindrical base configured to support a lighting module, the base including a flat bottom portion and a surrounding side wall; and a generally cylindrical cover configured to be coupled to the base including a parabolic reflector extending inside the cover from a first end of the cover to a second end of the cover, the reflector terminating in an annular rim; and the lighting module comprising; a generally circular, flat metal core printed circuit board including a first surface and a second surface, the second surface being directly mounted in a face to face relationship to the flat bottom portion of the base of the metallic host fixture; at least one LED disposed centrally on the first surface of the metal core printed circuit board; and a flat annular printed circuit board including a current driver circuit for powering the at least one LED disposed along a first surface of the annular printed circuit board, the annular printed circuit board being disposed around the at least one LED and electrically coupled to the at least one LED, the first surface of the annular printed circuit board being in a face to face relationship with the first surface of the metal core printed circuit board wherein the metal core printed circuit board is grounded to the base of the metallic host fixture and is spaced apart from the annular printed circuit board by at least one electrically conductive and thermally conductive standoff, wherein the at least one electrically conductive and thermally conductive standoff electrically grounds the annular printed circuit board to the metal core printed circuit board thereby grounding the annular printed circuit board to the metallic host fixture and conducts heat generated by the annular printed circuit board to the metal core printed circuit board which is subsequently conducted to the host fixture, wherein heat generated by the at least one LED is conducted to the metallic host fixture via the metal core printed circuit board. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification