LED lamp with an improved heat sink
First Claim
Patent Images
1. An LED lamp comprising:
- a housing;
a printed circuit board received in the housing;
a plurality of LEDs mounted on the printed circuit board;
a casing surrounding an upper portion of the housing;
a heat sink contacting and thermally connecting the printed circuit board, comprising;
a base contacting the printed circuit board and accommodated in a lower portion of the housing;
a plate larger than the base and integral with the base; and
a plurality of fins extending downwardly and perpendicularly from the plate to a location outside the housing;
wherein a pair of arms are resiliently and pivotably attached to the casing, andwherein the casing comprises a flange, the pair of arms abutting against a periphery of the flange of the casing.
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Accused Products
Abstract
A recessed LED lamp for being mounted in a wall or a ceiling, includes a housing (10), a printed circuit board (20) received in the housing, a plurality of LEDs (22) mounted on the printed circuit board, a casing (40) surrounding the housing, a pair of arms (50) resiliently and pivotably attached on the casing, and a heat sink (30) secured below the housing. The heat sink includes a base (32) contacting the printed circuit board and thermally connecting therewith, a plate (34) extending outwardly from the base and a plurality of fins (36) extending downwardly from the plate (34).
47 Citations
18 Claims
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1. An LED lamp comprising:
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a housing; a printed circuit board received in the housing; a plurality of LEDs mounted on the printed circuit board; a casing surrounding an upper portion of the housing; a heat sink contacting and thermally connecting the printed circuit board, comprising; a base contacting the printed circuit board and accommodated in a lower portion of the housing; a plate larger than the base and integral with the base; and a plurality of fins extending downwardly and perpendicularly from the plate to a location outside the housing; wherein a pair of arms are resiliently and pivotably attached to the casing, and wherein the casing comprises a flange, the pair of arms abutting against a periphery of the flange of the casing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A recessed LED lamp comprising:
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a lamp fixture comprising; a casing assembly; a flange extending outwardly and horizontally from the casing assembly, adapted for intimately abutting against a front side of a wall; a pair of arms fixed slantwise and pivotably attached on the casing assembly, the pair of arms abutting against a periphery of the flange and being pivotable to resiliently abut against a rear side of the wall; a printed circuit board received in the casing assembly; a plurality of LEDs mounted on the printed circuit board; and a heat sink secured below the casing assembly, comprising; a base contacting the printed circuit board; a plate extending outwardly from a bottom face of the base beyond a periphery of the base; a plurality of fins extending downwardly from the plate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification