Patent ID: 8031469
Filing Date: 2011-10-04
Classification: H05K

Abstract:
1. An electronic device comprising: a housing comprising a first wall comprising a support portion and a second wall facing the first wall; a first printed circuit board inside the housing and comprising a first heat-generating part; a second printed circuit board between the first printed circuit board and the second wall inside the housing and comprising a second heat-generating part and a third heat-generating part on a surface thereof on a side to the first wall, the second printed circuit board having an amount of heat generation larger than that of the first printed circuit board; a third printed circuit board between the first printed circuit board and the first wall inside the housing and comprising a fourth heat-generating part, the third printed circuit board having an amount of heat generation smaller than that of the first printed circuit board; and a fan unit comprising a fan case comprising a first suction opening portion connected to the inside of the housing on a side to the second wall, a second suction opening portion connected to the outside of the housing on a side to the first wall, and an exhaust opening portion in a lateral portion of the fan case, the fan case partially overlaying on the second printed circuit board on the side to the second wall.