Abstract: A fluid machine includes an electric motor, a pump, an inverter, and a housing having a motor chamber and an inverter chamber. The housing has a cooling passage having an inverter cooling passage and a motor cooling passage through which cooling fluid flows. After the cooling fluid is introduced to the inverter cooling passage, a flow of the cooling fluid is divided at the inlet into a flow of the cooling fluid flowing through the inverter cooling passage and a flow of the cooling fluid flowing through the motor cooling passage, the flow of the cooling fluid flowing through the inverter cooling passage and the flow of the cooling fluid flowing through the motor cooling passage are joined together at the outlet and discharged from the inverter cooling passage. The inverter cooling passage has a passage expanded portion in which a vortex flow is generated.

Abstract: According to one embodiment, this outdoor unit of an air conditioner includes a compressor, a heat exchanger, an expansion valve, a blower fan, electrical components, and a heat sink. The heat exchanger includes a first group constituted of at least one of the plurality of heat exchangers and a second group constituted of at least one of the plurality of heat exchangers not belonging to the first group. The expansion valve includes a first expansion valve and a second expansion valve. The heat sink is arranged on the flow path of the refrigerant on the upstream side of a confluence position of the refrigerant branches condensed by the heat exchangers of the first group and the second group and on the downstream side of the second expansion valve.

Abstract: An electronic device storage rack is equipped with a pair of first columns provided at intervals in a width direction; a pair of second columns provided at intervals in the width direction at positions away from the pair of first columns on a back side; a plurality of pairs of rails which connect the first column and the second column to support the electronic device main body to be slidable in a depth direction; a first fixing piece which is movable between an abutment position capable of abutting on the first column from the front side on the front side of the electronic device main body and a non-abutment position disposed between the first columns; and a second fixing piece which is movable between the abutment position capable of abutting on the second column from the back side on the back side of the electronic device main body and the non-abutment position disposed between the second columns.

Abstract: An electronic device storage rack is equipped with a pair of first columns provided at intervals in a width direction; a pair of second columns provided at intervals in the width direction at positions away from the pair of first columns on a back side; a plurality of pairs of rails which connect the first column and the second column to support the electronic device main body to be slidable in a depth direction; a first fixing piece which is movable between an abutment position capable of abutting on the first column from the front side on the front side of the electronic device main body and a non-abutment position disposed between the first columns; and a second fixing piece which is movable between the abutment position capable of abutting on the second column from the back side on the back side of the electronic device main body and the non-abutment position disposed between the second columns.

Abstract: A server rack according to the present invention mounts a plurality of servers. The server rack includes a plurality of central power supply units, each of which arranged between the plurality of servers with regular intervals, each of the plurality of central power supply units supplying electric power to one or more of the servers; and a direct-current power supply cable that connects the server and the central power supply unit. The direct-current power supply cable connects each of the servers and the central power supply units within a range of a predetermined distance.

Abstract: A server rack according to the present invention mounts a plurality of servers. The server rack includes a plurality of central power supply units, each of which arranged between the plurality of servers with regular intervals, each of the plurality of central power supply units supplying electric power to one or more of the servers; and a direct-current power supply cable that connects the server and the central power supply unit. The direct-current power supply cable connects each of the servers and the central power supply units within a range of a predetermined distance.