Patent ID: 8564948

Claim:
An electronic device comprising: an enclosure defining a rear side, a motherboard and a first cooling assembly secured to the rear side of the enclosure, and a second cooling assembly secured to the motherboard; a cover secured to the rear side and coving the rear side, and the cover defining a plurality of air inlets and a plurality of air outlets; and a blocking board, located between the first cooling assembly and the second cooling assembly, secured to a side of the motherboard; wherein a first air path is defined by the plurality of air inlets, the rear side besides the motherboard, the first cooling assembly and the plurality of air outlets, a second air path is defined by the plurality of air inlets, the motherboard, the second cooling assembly and the plurality of air outlets, and at least a portion of the first air path and the second air path are divided by the blocking board; the blocking board comprises a body and two securing pieces extending from the body, and two securing pieces are substantially perpendicular to the body and secured to the motherboard.