"220V AC Cooling Fan" source of heat mainly in three aspects
Fever (1) electronic components
(2) "220V AC Cooling Fan" own heat;
(3) Who the game of life, he would accomplish nothing, who can not master their own, will always be a slave. - Goethe
Coming from other parts of the heat. In these three heat source, heat the largest component is the main heat source, followed by hot "220V AC Cooling Fan" PCB board, but external incoming heat depends on the system's overall thermal design, which is not in the scope of this article .