Abstract:
A rotating electrical machine cooling structure such that a cooling medium is supplied by a pump to a stator and rotor of a rotating electrical machine, thereby cooling the stator and rotor, includes a first passage that supplies the cooling medium from the pump to the stator, a second passage that supplies the cooling medium from the pump to the rotor, and a valve that regulates a flow of the cooling medium of the first passage and a flow of the cooling medium of the second passage, wherein a cooling state of the stator and a cooling state of the rotor are controlled by the valve.
Abstract:
A terminal block is fixed to a frame holding a stator and in phase with the stator whereas a part of an outside wire is fixed to a case. Hence, a bus bar extracted from a connection plate is welded to the terminal block hardly under the influence of a tolerance caused by integration of components and a tolerance of assembly. Even when a load applied from the outside gives rise to a phase difference between the case and the frame, a tolerance can be absorbed by the outside wire. Accordingly, a load applied to a weld portion of the terminal block and the bus bar can be reduced.
Abstract:
A plurality of core blocks that are arranged into an annular shape are inserted into and fixed to a cylindrical frame, and are disposed inside the frame, a bolt passage member that is produced as a solid body and that has a bolt passage aperture that passes through in a longitudinal direction is fixed by welding to an outer circumferential surface of the frame such that the longitudinal direction thereof is oriented in the axial direction of the frame, and a stator is held on the housing by fastening a bolt that is passed through the bolt passage aperture into a fixing portion that is formed on the housing.