Lamp
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United States of America Patent
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Dec 17, 2013
Grant Date -
Sep 20, 2012
app pub date -
Aug 16, 2011
filing date -
Mar 15, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A lamp includes a housing, a heat sink, a cooling fan and a light-emitting module. The housing has an assembling opening and an electrical connection member on two ends thereof, wherein the housing further comprises an inner wall and a portion of the inner wall adjacent to the assembling opening is an air-guiding wall. The heat sink has a base plate disposed at the assembling opening of the housing, wherein the base plate has at least one partitioning board defining an air channel of the heat sink. A first air-guiding opening is formed between the air-guiding wall and the at least one partitioning board, and a second air-guiding opening is formed between the air channel and the air-guiding wall. The cooling fan is coupled with the heat sink and has an impeller. The light-emitting module is coupled with the base plate of the heat sink.
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