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US 7,841,753 B2Granted
LED illumination device and light engine thereof
AssigneeFoxconn Technology Co., Ltd.
InventorTay-Jian Liu
Life of this patent
Estimating the term…
Abstract
An LED illumination device includes an optical section at a front end thereof, an electrical section at a rear end thereof, and a heat dissipation section between the optical section and the electrical section. The optical section includes a plurality of LEDs electrically connecting with the electrical section, and a light output housing around the LEDs. The heat dissipation section includes a plurality of L-shaped heat pipes, a heat sink and a mounting seat. Each of the heat pipes includes an evaporation section and a condensation section substantially perpendicular thereto. The condensation sections of the heat pipes are received in the heat sink. The mounting seat attaches to the evaporation sections of the heat pipes. The LEDs thermally connect with evaporation sections via the mounting seat.
Claims20
An LED illumination device, comprising:
- an optical section at a front end thereof, comprising at least one LED and a light output housing therearound;
- an electrical section at a rear end of the LED illumination device, electrically connecting with the at least one LED;
- and
- a heat dissipation section between the optical section and the electrical section comprising:
- at least one L-shaped heat pipe comprising an evaporation section and a condensation section substantially perpendicular to the evaporation section;
- a heat sink receiving the condensation sections of the at least one heat pipe;
- and
- at least one mounting seat attaching to the evaporation section of the at least one heat pipe, the at least one LED thermally connecting with the evaporation section of the at least one heat pipe via the at least one mounting seat;
- wherein the heat dissipation section further comprises a frame supporting the heat sink, and a holder mechanically connecting the heat dissipation section with the electrical section, the frame comprising a base and a plurality of arms extending backwardly and axially therefrom, wherein the arms are fixed on the holder, and the at least one heat pipe, the heat sink and the at least one mounting seat are received in a space cooperatively defined by the base, the arms and the holder;
- and
- wherein the heat sink defines a plurality of latching grooves at an outer circumferential surface thereof, wherein the arms are inserted into the latching grooves, respectively.
8 more elements
An LED illumination device, comprising:
- an optical section at a front end thereof, comprising at least one LED and a light output housing therearound;
- an electrical section at a rear end of the LED illumination device, electrically connecting with the at least one LED;
- and
- a heat dissipation section between the optical section and the electrical section comprising:
- at least one L-shaped heat pipe comprising an evaporation section and a condensation section substantially perpendicular to the evaporation section;
- a heat sink receiving the condensation sections of the at least one heat pipe;
- and
- at least one mounting seat attaching to the evaporation section of the at least one heat pipe, the at least one LED thermally connecting with the evaporation section of the at least one heat pipe via the at least one mounting seat;
- wherein the heat dissipation section further comprises a frame supporting the heat sink, and a holder mechanically connecting the heat dissipation section with the electrical section, the frame comprising a base and a plurality of arms extending backwardly and axially therefrom, wherein the arms are fixed on the holder, and the at least one heat pipe, the heat sink and the at least one mounting seat are received in a space cooperatively defined by the base, the arms and the holder;
- and
- wherein the heat sink defines a plurality of through holes therein, the holder also defines a plurality of through holes therein, and a plurality of electric wires extends from the at least one LED through the through holes of the heat sink and the holder, electrically connecting the at least one LED with the electrical section.
8 more elements
An LED illumination device, comprising:
- an optical section at a front end thereof, comprising at least one LED and a light output housing therearound;
- an electrical section at a rear end of the LED illumination device, electrically connecting with the at least one LED;
- and
- a heat dissipation section between the optical section and the electrical section comprising:
- at least one L-shaped heat pipe comprising an evaporation section and a condensation section substantially perpendicular to the evaporation section;
- a heat sink receiving the condensation sections of the at least one heat pipe;
- and
- at least one mounting seat attaching to the evaporation section of the at least one heat pipe, the at least one LED thermally connecting with the evaporation section of the at least one heat pipe via the at least one mounting seat;
- wherein the heat dissipation section further comprises a frame supporting the heat sink, and a holder mechanically connecting the heat dissipation section with the electrical section, the frame comprising a base and a plurality of arms extending backwardly and axially therefrom, wherein the arms are fixed on the holder, and the at least one heat pipe, the heat sink and the at least one mounting seat are received in a space cooperatively defined by the base, the arms and the holder;
- and
- a cooling fan between the heat sink and the holder, mounted on the holder and generating airflow towards the heat sink.
8 more elements
Dependencies are inferred from the claim text.