Cold plate

A cold plate comprising:

• a main body in contact with a heat source, wherein
• the main body:
• has:
• an inflow hole through which a refrigerant flows in;
• an outflow hole through which the refrigerant flows out;
• and
• an internal space communicating with the inflow hole and the outflow hole and through which the refrigerant flows;
• and
• comprises:
• a first heat exchange layer in the internal space;
• and
• a second heat exchange layer in the internal space,
• the first heat exchange layer and the second heat exchange layer are laminated in a thickness direction of the first heat exchange layer and of the second heat exchange layer,
• the first heat exchange layer has:
• a first flow path through which the refrigerant flows in a first direction;
• and
• a second flow path through which the refrigerant flows in the first direction and disposed at a position different from the first flow path in a second direction intersecting the first direction, and
• the second heat exchange layer has:
• a cross flow path in the internal space that communicates with the first flow path and the second flow path such that the refrigerant flows therethrough in the second direction.