LED lamp with a heat sink assembly
First Claim
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1. An LED lamp comprising:
- a hollow prism-shaped heat sink with a through hole defined therein from a top to a bottom thereof;
a cover adapted for engaging with the heat sink having a plurality of apertures defined therein for providing passages for airflow;
a plurality of LED modules being attached to an outer sidewall of the heat sink, each of the LED modules comprising a printed circuit board and a plurality of LEDs mounted thereon, the heat sink forming an annular base extending outwardly beyond the outer sidewall thereof to be located spacedly beneath the LED modules;
a plurality of additional fins and protrusions extending from the heat sink with at least two additional fins located between two adjacent fins and at least one protrusion located between other two adjacent fins approximate to the at least two additional fins anda plurality of heat pipes mounted on an inner sidewall of the heat sink corresponding to the LED modules, wherein when the LEDs are activated, heat generated by the LED modules is transferred to the heat sink evenly via the heat pipes.
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Abstract
An LED lamp adapted for lighting includes a heat sink (30), a bowl-shaped cover (20) attached to a bottom portion of the heat sink, a lamp seat (10) secured below the cover, a plurality of LEDs (54) mounted on an outside surface of the heat sink, and a plurality of heat pipes (40) contacting with interior face of the heat sink. The heat sink has a plurality of fins (34, 36) extending from sidewalls thereof. The cover has a plurality of apertures (220) defined on lateral wall thereof. The heat generated by the LEDs can be transferred to the heat sink evenly via the heat pipes, and is then dispersed to ambient air efficiently and rapidly.
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Citations
15 Claims
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1. An LED lamp comprising:
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a hollow prism-shaped heat sink with a through hole defined therein from a top to a bottom thereof; a cover adapted for engaging with the heat sink having a plurality of apertures defined therein for providing passages for airflow; a plurality of LED modules being attached to an outer sidewall of the heat sink, each of the LED modules comprising a printed circuit board and a plurality of LEDs mounted thereon, the heat sink forming an annular base extending outwardly beyond the outer sidewall thereof to be located spacedly beneath the LED modules;
a plurality of additional fins and protrusions extending from the heat sink with at least two additional fins located between two adjacent fins and at least one protrusion located between other two adjacent fins approximate to the at least two additional fins anda plurality of heat pipes mounted on an inner sidewall of the heat sink corresponding to the LED modules, wherein when the LEDs are activated, heat generated by the LED modules is transferred to the heat sink evenly via the heat pipes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A heat sink assembly for dissipating heat from LED modules, the heat sink assembly comprising:
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a hollow heat sink, the heat sink having a plurality of sidewalls adapted for mounting the LED modules thereon, an inner wall defining a plurality of grooves therein; a plurality of heat pipes being accommodated in corresponding grooves adapted for transferring heat generated by the LED modules to the heat sink evenly; a plurality of fins extending from the heat sink, at least one fin being located at a junction of two adjacent sidewalls of the heat sink for enhancing heat dissipating area of the heat sink; and a plurality of additional fins and protrusions extending from the heat sink with at least two additional fins located between two adjacent fins and at least one protrusion located between other two adjacent fins approximate to the at least two additional fins. - View Dependent Claims (13, 14, 15)
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Specification