Abstract: The inner edge of a hole 23 surrounding the outer circumference of a first heat sink 61 includes two edges 23a and 23b that are positioned on opposite sides to each other with the first heat sink 61 therebetween. An upper frame (shield) 20 includes spring portions 24 on one edge 23a, which is in contact with the first heat sink 61 to push the first heat sink 61 toward the other edge 23b. Further, the upper frame 20 includes, the other edge 23b, a position determining portion 25 to which the first heat sink 61 is pressed. According to the above electronic apparatus, it is possible to define the position of a metallic component by a shield covering a circuit board and to cause the metallic component and the shield to be in contact stably.

Abstract: A curved wall 51a is curved along a logarithmic spiral with a rotation axis C of a cooling fan 40 so that the flow path cross-sectional area of a first air flow path S1 gradually becomes larger toward a second air flow path S2. Further, the second air flow path S2 is formed to have a larger cross-sectional area than the downstream end of the first air flow path S1, and heat sinks 61 and 62 are arranged on the second air flow path S2. According to the above electronic apparatus, it is possible to efficiently provide an air flow that is formed by the cooling fan to the heat sink.

Abstract: A cooling device includes: a heat sink including a plurality of fins formed to be plate shaped, which are arranged in parallel to one another; and a cooling fan arranged in a direction from the heat sink, the direction being perpendicular to perpendicular lines of the fins. A plurality of fins of a side heat sink constituting the heat sink include edges aligned on an oblique line with respect to perpendicular lines of the fins and formed on the outer periphery of the cooling fan. With this structure, it is possible to improve usage efficiency of an air flow generated by the cooling fan.