| 主权项 |
1. A phase change cooler comprising:
a plurality of heat receiving units that include first and second heat receiving units different from each other, each of the first and second heat receiving units including a bottom plate having an outer surface and an inner surface opposite from the outer surface, the outer surface being in contact with an electronic part that is a cooling target, and a plurality of fins provided on the inner surface, the first and second heat receiving units causing a refrigerant to change phase from liquid to gas by heat received from the electronic part; one heat radiating unit that causes the refrigerant to change phase from gas to liquid by radiating heat to a surrounding area; a plurality of vapor tubes that include first and second vapor tubes different from each other, the first vapor tube having a first end directly connected to the heat radiating unit and a second end directly connected to the first heat receiving unit, the first vapor tube transporting the refrigerant in a vapor state from the first heat receiving unit to the heat radiating unit, the second vapor tube having a first end directly connected to the heat radiating unit and a second end directly connected to the second heat receiving unit, the second vapor tube transporting the refrigerant in a vapor state from the second heat receiving unit to the heat radiating unit, the first vapor tube and the second vapor tube being connected to different side surfaces of the heat radiating unit, respectively; and a branched liquid tube that has a first end directly connected to the heat radiating unit, a second end directly connected to the first heat receiving unit, and a third end directly connected to the second heat receiving unit, the branched liquid tube circulating the refrigerant in a liquid state from the heat radiating unit to each of the first and second heat receiving units. |
