US 2009/0021936 A1 · LINEAR LED ILLUMINATION SYSTEM

Abstract

A linear LED light module and system includes a heat sink, a printed circuit board, a plurality of LEDs, a power supply housing, a flexible electrical conductor, a first electrical connector, a second electrical connector, and a power supply. The heat sink is elongated in an axial direction along a longitudinal axis that is parallel with a greatest dimension of the heat sink. The PCB is in thermal communication with the heat sink and includes circuitry. The plurality of LEDs mount to the PCB and are in electrical communication with the circuitry of the PCB. The power supply housing connects to the heat sink. The flexible electrical conductor includes at least two wires that are configured to accommodate an AC line voltage of at least 120 VAC. The first electrical connector is at a first end of the electrical conductor. The second electrical connector is at a second end of the electrical conductor. The second connector has a configuration that complements the first connector so that the second connector can connect to an associated adjacent first connector of an associated adjacent LED module to allow a plurality of similar LED modules to be mechanically and electrically connected to one another. The power supply is disposed in the power supply housing and in electrical communication with the circuitry of the PCB and the electrical conductor. The power supply is configured to receive the AC line voltage from the electrical conductor and to convert the received AC line voltage to a lower DC voltage for delivery to the circuitry of the PCB to drive the LEDs mounted on the PCB.

Claims18

Dependent claims

An elongate linear light emitting diode (LED) module comprising:

a heat sink elongated in an axial direction along a longitudinal axis that is parallel with a greatest dimension of the heat sink;
a printed circuit board (PCB) in thermal communication with the heat sink and including circuitry;
a plurality of LEDs mounted to the PCB and in electrical communication with circuitry of the PCB, the LEDs being spaced from one another in the axial direction;
a power supply housing connected to the heat sink;
a flexible electrical conductor including at least two wires and configured to accommodate an AC line voltage of at least 120 VAC;
a first electrical connector at a first end of the electrical conductor;
a second electrical connector at a second end of the electrical conductor, the second connector having a configuration that complements the first connector so that the second connector can connect to an associated adjacent first connector of an associated adjacent LED module to allow a plurality of similar LED modules to be mechanically and electrically connected to one another;
and
a power supply disposed in the power supply housing and in electrical communication with the circuitry of the PCB and the electrical conductor, the power supply configured to receive the AC line voltage from the electrical conductor and to convert the received AC line voltage to a lower DC voltage for delivery to the circuitry of the PCB to drive the LEDs mounted on the PCB.

6 more elements

A linear light emitting diode (LED) system comprising a plurality of interconnected LED modules, each module comprising:

an elongate heat sink defining a longitudinal axis running parallel to a greatest dimension of the heat sink, the heat sink including a channel extending through the heat sink from a first end to a second end along the longitudinal axis of the heat sink;
an optic elongated in a direction parallel to the longitudinal axis disposed in the channel;
a printed circuit board (PCB) elongated in a direction parallel to the longitudinal axis disposed in the channel and in thermal communication with the elongate heat sink, the PCB including circuitry;
a plurality of LEDs mounted to the PCB and in electrical communication with circuitry of the PCB, the LEDs being spaced from one another in a direction parallel to the longitudinal axis;
a power supply housing connected to a lowermost surface of the elongate heat sink;
a female electrical connector spaced from the power supply housing;
a male electrical connector spaced from the power supply housing, the male connector having a configuration that complements the female connector so that the male connector of a first LED module of the plurality of LED modules connects to a female connector of a second LED module of the plurality of LED modules to mechanically and electrically connect the first LED module to the second LED module;
a flexible electrical conductor having at least two wires interconnecting the female electrical connector and the male electrical connector, the flexible electrical conductor being configured to accommodate a line voltage of at least 120 VAC;
and
a power supply disposed in the power supply housing and in electrical communication with the circuitry of the PCB and the electrical conductor, the power supply configured to receive the AC line voltage from the electrical conductor and to convert the received AC line voltage to a lower DC voltage for delivery to the circuitry of the PCB to drive the LEDs.

7 more elements

Dependencies are inferred from the claim text.

Linear led illumination system

Life of this patent

Linear led illumination system

Life of this patent

Abstract

Claims18