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US 7,236,366 B2Granted
High brightness LED apparatus with an integrated heat sink
AssigneeExcel Cell Electronic Co., Ltd.
InventorAn-Si Chen
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AssigneeExcel Cell Electronic Co., Ltd.
InventorAn-Si Chen
Estimating the term…
A high brightness LED apparatus with an integrated heat sink includes a heat sink base and at least one LED mounted in the heat sink base. The heat sink base includes multiple dissipating fins formed integrally on the substrate. Each of the at least one LED includes a body and multiple dies. The body is mounted in the substrate and includes a conductive seat with a top recess. The dies are mounted on the conductive seat in the top recess and produce a great amount of light beams for an enhanced brightness of illumination. The dissipating fins will efficiently dissipate heat produced by the at least one LED to prevent each LED from brightness decay and extend the useful life of each LED.
A high brightness LED apparatus with an integrated heat sink, and the high brightness LED apparatus comprising
Dependencies are inferred from the claim text.
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Cooling arrangements: characterised by passive heat-dissipating elements, e.g. heat-sinks
Light sources using semiconductor devices as light-generating elements
Characterised by passive heat-dissipating elements, e.g. heat-sinks: with fins or blades
With fins or blades: the fins or blades being planar and inclined with respect to the joining surface from which the fins or blades extend
Term ended 17 Jun 2025 (estimated)
1. Field of the Invention
The present invention relates to a light emitting diode (LED) apparatus, and more particularly to a high brightness LED apparatus with an integrated heat sink so that the LED apparatus will produce high performance brightness and dissipate efficiently heat accumulated in the LED apparatus while the LED apparatus produces light.
2. Description of Related Arts
FIG. 1 is a perspective view of a high brightness LED apparatus with an integrated heat sink in accordance with the present invention;
FIG. 2 is a top plan view of an LED of the LED apparatus in FIG. 1;
FIG. 3 is a cross sectional side elevational view of the LED along line 3—3 in FIG. 2;
With reference to FIGS. 1 and 4, a first embodiment of a high brightness LED apparatus with an integrated heat sink in accordance with the present invention comprises a heat sink base (10) and an LED (20).
The heat sink base (10) is made of the high thermal conductivity materials and comprises a substrate (11) and multiple integrated dissipating fins (12). The substrate (11) is a planar block and has a first surface (111), a second surface (112), multiple mounting holes (113) and an LED hole (114). The first surface (111) is opposite to the second surface (112). The holes (113, 114) are defined completely through the substrate (11). The dissipating fins (12) are formed and arranged on the entire second surface (112) of the substrate (11).
With reference to FIGS. 2, 3 and 4, the LED (20) is mounted and held in the LED hole (114) in the substrate (11) and comprises a body (21), a cover (22), an outside casing (23) and multiple dies (24).