ILLUMINATION DEVICE HAVING UNIDIRECTIONAL HEAT-DISSIPATING ROUTE
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United States of America Patent
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N/A
Issued Date -
Feb 12, 2009
app pub date -
Aug 7, 2008
filing date -
Aug 10, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An illumination device having an unidirectional heat-dissipating route, includes a heat sink and a LED light module. The heat sink includes a heat plate, a heat pipe and a heat-dissipating body. The heat pipe has a heat absorbing portion and a heat dissipating portion with a horizontal position different to that of the heat absorbing portion. The heat absorbing portion is connected to the heat plate, and a plurality of grooves is formed in the heat pipe to be communicated with the heat absorbing portion and the heat dissipating portion. The heat absorbing portion is lower than the heat dissipating portion. The heat-dissipating body is connected to the heat dissipating portion. The LED light module is connected to the heat plate. Thus the LEDs are protected and prevented from being destroyed by the heat, and the working life thereof is increased greatly.
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