Rotating electrical machine having means to secure plating to cover a flow passage

A rotating electrical machine, comprising:

• a housing which is provided with a part of a flow passage of cooling liquid;
• a stator which is disposed on an inner circumferential side of the housing and includes a stator winding;
• a rotor which is rotatably supported to an inner circumferential side of the stator with a gap between the stator and the rotor;
• and
• a bracket fixed to the housing and for attachment to the outside, wherein
• the flow passage of the cooling liquid includes a first portion perpendicular to a rotational axis of the rotor and a second portion parallel to the rotational axis of the rotor, the second portion including an annular groove having an open surface on at least one side of an axial direction of the housing and a plate provided to cover the open surface,
• the housing and the plate are joined by welding or an adhesive material, and
• the bracket and the plate are fixed to the housing without contacting each other, and
• in the direction perpendicular to the rotational axis of the rotor, the annular groove is wider at the open surface than at an outer edge of the second portion of the flow passage.