HEAT TRANSFER ASSEMBLY FOR LED-BASED LIGHT BULB OR LAMP DEVICE

摘要

A LED-based light bulb (20) or lamp device including a bulb body (22), an LED assembly (24), an LED heatsink (26), and a power conversion heatsink ( 28). The LED assembly (24) includes a plurality of LEDs (34) and circuitry (102). The circuitry (102) includes power converting components adapted to modify applied power for powering the LEDs via conductive wiring. The LED heatsink is mounted to the bulb body in close proximity to at least one of the LEDs. The power conversion heatsink is provided apart from the LED heatsink and is mounted to the bulb body in close proximity to at least one of the power converting components. The LED heatsink dissipates heat from at least some of the light emitting diode lights whereas the separate power conversion heatsink dissipates heat from the power converting circuitry components, thereby separating the heat - generating components and their mounting zones, heat paths and heatsink surface areas.