PASSAGE STRUCTURE AND ELECTRONIC APPARATUS HAVING THE SAME

PROBLEM TO BE SOLVED: To equalize the flow velocity of an inflow of fluid having a flow velocity difference without significantly increasing passage resistance.SOLUTION: A passage structure includes a passage 1 for directing a fluid from an inlet 2 to an outlet 3, and a flow velocity control structure 5 disposed in a local region in the passage between the inlet and the outlet to reduce a flow velocity difference that the fluid flowing into the passage has in a direction across the flow direction thereof. The flow velocity control structure includes a plurality of flow velocity control members 5a formed alternately with spaces 5b for passing the fluid in the direction across the flow direction. The plurality of flow velocity control members are sized differently such that flow velocity control members disposed in regions with higher fluid flow velocities are larger in the direction across the flow direction.