Cooling structural body, cooling system, heat generator and construction

A cooling system comprising:

• a cooling structural body including a heat radiating part having a mounting surface on which an electronic component is directly or indirectly mounted, and a medium flow path through which a medium can flow is provided in the heat radiating part;
• and
• a medium flow supply part configured to allow a medium to flow in the medium flow path of the cooling structural body,
• a housing which is a sealed space and in which both the electronic component and the cooling structural body are disposed,
• wherein a first guide pipe part configured to guide the medium to the medium flow path positioned in the housing which is the sealed space and inside the cooling structural body is provided, and
• wherein a second guide pipe part configured to guide the medium from the medium flow path to an outside of the housing which is the sealed space is provided,
• wherein the cooling structural body and the medium flow supply part are provided on a vehicle, and
• wherein the medium flow supply part is configured to supply running air generated at a time of running of the vehicle to the medium flow path.