Abstract: An electric motor disclosed includes a cylindrical stator and a ring-shaped refrigerant pipe. The ring-shaped refrigerant pipe is disposed to be coaxial with the stator. The refrigerant pipe has discharge ports which face the stator and from which refrigerant is discharged, and a refrigerant inlet. The refrigerant inlet is positioned below the discharge ports.

Abstract: An electric motor disclosed includes: a stator that has a cylindrical shape; and a refrigerant pipe that has a ring shape and that is disposed coaxially with the stator. The refrigerant pipe includes an ejection hole that faces the stator, an inflow hole through which a refrigerant flows into the refrigerant pipe, and a discharge hole through which the refrigerant is removed from the refrigerant pipe. The discharge hole is positioned below the ejection hole and the inflow hole.

Abstract: A motor unit includes a channel. The channel includes: a supply channel through which a cooling medium is supplied; a discharge channel through which the cooling medium is discharged; a first cooling medium system provided in a first range from the supply channel toward one side in a circumferential direction to the discharge channel; and a second cooling medium system provided in a second range from the supply channel toward the other side in the circumferential direction to the discharge channel. The first cooling medium system includes a first cooling medium channel that connects the supply channel and the discharge channel, and a second cooling medium channel that is independent of the first cooling medium channel and that connects the supply channel and the discharge channel.

Abstract: A motor unit includes a motor, a housing, and a coolant channel that is configured such that a coolant flows through. The coolant channel includes an inlet passage for receiving the coolant from outside, a branching passage into which the coolant flows from the inlet passage, a first channel into which the coolant flows from the branching passage, and a second channel which a path length is shorter than that of the first channel. An inlet port, a first outlet port, and a second outlet port, are defined on an inner face of the branching passage, and a distance between a center of the inlet port and a center of the first outlet port is smaller than a distance between the center of the inlet port and a center of the second outlet port.

Abstract: A drive device for a vehicle includes a motor unit including a motor and an inverter unit including an inverter. One of the motor unit or the inverter unit is provided with a plurality of male terminals. The other of the motor unit or the inverter unit is provided with a plurality of female terminals. Each of the male terminals has a columnar shape that extends along the direction of assembly of the inverter unit to the motor unit. Each of the female terminals has a hole into which a corresponding one of the male terminals is inserted along the assembly direction. At least one of the male terminals has a longer distance of insertion into the female terminal than that of the other male terminals.

Abstract: A motor includes a cylindrical housing that accommodates a stator and a rotor inside, and a first cover that blocks an opening of the housing. The housing is provided with a refrigerant flow path. Each of an upper portion and a lower portion of the first cover is provided with a first hole through which an inside and an outside of the refrigerant flow path communicate with each other.