To provide a heat dissipation structure for an electronic apparatus case body which suppresses the amount of solar radiation reaching the electronic apparatus case body by improving heat dissipation performance in the neighborhood of the top surface of the electronic apparatus case body.

A sunshade member 2 which is formed by combining a plurality of longitudinal plates 2a arrayed in a longitudinal direction with a plurality of horizontal plates 2b arrayed in a horizontal direction to be mutually in a lattice shape is arranged in the neighborhood of the top surface of the electronic apparatus case body 1. Thus, the heat dissipation performance is improved in the neighborhood of the top surface of the electronic apparatus case body, and also the amount of solar radiation reaching the electronic apparatus case body is suppressed.

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