US 8,783,937 B2 · LED illumination device with isolated driving circuitry

Abstract

The present disclosure generally relates to several embodiments of a new illumination device using a plurality of LEDs, the device is designed to better diffuse heat produced from a heating driver circuitry and the LEDs in a way that allows for either the operating or equilibrium temperatures of the heat sensitive elements as part of the device to be subject to less stringent temperature increases and therefore improve the viability and energy performance of the device. The new design includes toroid-shaped external rings for the plurality of LEDs and a middle opening for the driver circuitry. The new design further includes fins and the use of different spaces and openings within the housing to help control the flow of heat by way of thermal conduction, thermal convection, or thermal irradiation.

Claims18

Dependent claims

A light emitting diode (LED) illumination device comprising:

a housing with an external peripheral ring for the support of at least a circuit board and an inner surface, and a power supply cavity defined in the external peripheral ring by the inner surface and at its base by a housing plate having a top surface in the power supply cavity and a bottom surface;
a base plug coupled to the bottom surface of the housing plate, the base plug capable of receiving power from a conventional power source and transferring the power through the plug;
a power supply driver circuitry coupled to the base plug and connected to the top surface of the housing plate, the power supply driver circuitry having an external edge at a distance from the inner surface of the housing creating a gap;
at least a circuit board supported by the external peripheral ring for a plurality of LEDs, wherein the circuit board is connected via wire joints over the gap to the power supply driver circuitry.

1 more element

Dependencies are inferred from the claim text.

LED illumination device with isolated driving circuitry

Life of this patent

LED illumination device with isolated driving circuitry

Life of this patent

Abstract

Claims18