Cooling apparatus

A cooling apparatus comprising:

• a cold plate including a plate-shaped bottom wall portion, an upper wall portion to cover an upper surface of the bottom wall portion, a side wall portion to join outer edges of the bottom wall portion and the upper wall portion, and a first coolant passage in which a coolant flows;
• a radiator including fins to perform cooling, and a second coolant passage in which the coolant flows;
• and
• a pump connected to each of the first coolant passage and the second coolant passage to circulate the coolant;
• wherein
• the radiator is provided on the cold plate;
• the pump is located over the cold plate in a first direction and is adjacent to the radiator in a second direction which is perpendicular to the first direction;
• the bottom wall portion includes a lower surface exposed to be contacted from outside of the cooling apparatus;
• the first coolant passage is defined in an interior space enclosed by the bottom wall portion, the upper wall portion, and the side wall portion;
• a plurality of blades which extend in parallel with one another is provided on an upper surface of the bottom wall portion;
• the first cooling passage and overlaps a portion of the second cooling passage when viewed in the first direction;
• the first coolant passage and the second coolant passage are connected to each other;
• the second coolant passage is located above the first coolant passage in the first direction and extends in the second direction;
• and
• a lower end of each of the fins is in contact with an upper surface of the upper wall portion.