| 摘要 |
A cooler includes a base plate, fins, a coolant discharge passageway, and a coolant supply passageway. The coolant supply passageway includes a supply passageway partition that divides the coolant supply passageway into a plurality of divided supply passageways. The supply passageway partition extends in a coolant flowing direction within the coolant supply passageway. A first coolant supply port supplies the coolant to a first divided supply passageway that is at least one of the divided supply passageways, from one side along the base plate. A second coolant supply port supplies the coolant to a second divided supply passageway that is at least one of the divided supply passageways, from another side along the base plate. Coolant nozzles jet the coolant toward the fins. The coolant nozzles include a coolant nozzle communicating with the first divided supply passageway and a coolant nozzle communicating with the second divided supply passageway. |
