Lighting device having a housing with a pluraltity of holes for effective heat dissipation
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United States of America Patent
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Jul 23, 2013
Grant Date -
Jul 19, 2012
app pub date -
Oct 22, 2011
filing date -
Jan 13, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A lighting device includes a light source module and a housing mated to a heat sink and covered by a cover. The housing has a first shell portion encircled by an inner sidewall of the heat sink. Alternatively, the housing may further has a second shell portion arranged between the first shell portion and the inner sidewall of the heat sink. The respective ends of the first and second shell portions are covered by a first plate portion and a connecting portion. A cavity is defined by the first shell portion and the first plate portion for accommodating the light source module. A plurality of first thru-holes, second thru holes, third thru holes, fourth thru-holes, and fifth thru holes are formed on the circuit board, the connecting portion, the cover, the first shell portion, and the first plate portion, respectively.
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