LED lamp and heat sink
First Claim
Patent Images
1. A lamp comprising:
- an enclosure;
a base comprising an electrically conductive connector and an electrically non-conductive housing portion;
at least one LED located in the enclosure and operable to emit light when energized through an electrical path from the base;
a heat sink connected to the housing portion comprising a heat conducting portion that extends into the enclosure and that supports the at least one LED and a heat dissipating portion that is at least partially exposed to the ambient environment and comprises a plurality of fins, the plurality of fins extending to the exterior of the lamp and each of the plurality of fins comprises an overhang that extends over the housing portion.
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Accused Products
Abstract
A lamp has an optically transmissive enclosure and a base. At least one LED is located in the enclosure and are operable to emit light when energized through an electrical path from the base. A heat sink comprises a heat dissipating portion having a first part that is located inside of the enclosure and that is thermally coupled to the LED and a second part that is exposed to the ambient environment. The second part comprises a plurality of stems connected to the first part where each stem supports a first overhang that extends over a portion of the enclosure and a second overhang that extends over a portion of the base.
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Citations
19 Claims
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1. A lamp comprising:
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an enclosure; a base comprising an electrically conductive connector and an electrically non-conductive housing portion; at least one LED located in the enclosure and operable to emit light when energized through an electrical path from the base; a heat sink connected to the housing portion comprising a heat conducting portion that extends into the enclosure and that supports the at least one LED and a heat dissipating portion that is at least partially exposed to the ambient environment and comprises a plurality of fins, the plurality of fins extending to the exterior of the lamp and each of the plurality of fins comprises an overhang that extends over the housing portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lamp comprising:
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an enclosure; a base comprising an electrically conductive connector and an electrically non-conductive housing portion; at least one LED located in the enclosure and operable to emit light when energized through an electrical path from the base; a heat sink connected to the housing portion comprising a heat conducting portion that extends into the enclosure and that is thermally coupled to the at least one LED and a heat dissipating portion that is exposed to the ambient environment, the heat dissipating portion comprising a first overhang that extends over a portion of the enclosure and a second overhang that extends over a portion of the housing portion. - View Dependent Claims (15, 16)
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17. A lamp comprising:
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an enclosure that is at least partially optically transmissive and a base forming a lamp housing having a longitudinal axis, a gap formed in the lamp housing between the enclosure and the base, the gap having a width; at least one LED located in the enclosure and operable to emit light when energized through an electrical path from the base; a heat sink comprising a tower that extends into the enclosure along the longitudinal axis and a heat dissipating portion that is at least partially disposed in the lamp housing and that extends through the gap in the lamp housing, the heat dissipating portion comprising a plurality of fins, the plurality of fins having a length that is wider than the width of the gap.
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18. A lamp comprising:
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an optically transmissive enclosure; a base; at least one LED located in the enclosure and operable to emit light when energized through an electrical path from the base; a heat sink comprising a heat dissipating portion that is at least partially exposed to the ambient environment and comprises a plurality of fins, the plurality of fins extending to the exterior of the lamp and each of the plurality of fins comprises an overhang that extends over at least the enclosure, the overhang on each of the plurality of fins are connected to a flange that is disposed adjacent the enclosure and is configured to reflect light emitted from the enclosure to redistribute the emitted light from the area adjacent the base toward a distal end of the enclosure. - View Dependent Claims (19)
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Specification