LED lamp and heat sink

摘要

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.

主权项

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.