LED flashlight with heat-dissipating plate

Details LED flashlight with heat-dissipating plate LED flashlight with heat-dissipating plate

2008-05-06

2008-05-06

O'Shea, Sandra (Department: 2875)

Illumination

Housing

With cooling means

C362S191000, C362S202000, C362S294000

Reexamination Certificate

active

11377061

ABSTRACT:
A flashlight includes a battery housing, a lamp seat, a lamp unit, a heat-conductive casing, and a heat-dissipating plate. The lamp seat is mounted on one end of the battery housing. The lamp unit includes a substrate having a first side provided with a metal layer, and an LED lamp mounted on a second side of the substrate opposite to the metal layer. The heat-conductive casing is attached to the battery housing, and is disposed around the lamp seat and the lamp unit. The heat-dissipating plate is sandwiched between the lamp seat and the metal layer of the substrate, and is in contact with the heat-conductive casing. Heat generated by the lamp unit is dissipated via the metal layer, the heat-dissipating plate, and the heat-conductive casing.

REFERENCES:
patent: 6880951 (2005-04-01), Yoon
patent: 7153004 (2006-12-01), Galli
U.S. Appl. No. 11/342,082, filed Jan. 27, 2006, entitled “Flashlight” by Won-Chin Shiau, 16 pages.

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