A method for manufacturing a motor core includes forming multiple blocks, stacking the blocks to form a stacked body, and detecting an identifying portion with a detection device. The forming the blocks includes forming, only in the iron core piece that forms one end face of each block, an identifying portion for identifying the progressive press device that forms that block. The forming, only in the iron core piece that forms one end face of each block, the identifying portion includes forming the identifying portion in a surface of the iron core piece that forms the one end face of the block. The stacking the blocks to form the stacked body includes stacking, to form the stacked body, only the blocks formed by the progressive press device corresponding to the detected identifying portion among the multiple blocks.

A ferromagnetic, coil-retention wedge assembly for a stator slot that includes a non-magnetic, corrugated substrate having alternating ridges and grooves and a plurality of ferromagnetic wedges inserted into the grooves of the corrugated substrate.

A ferromagnetic, coil-retention wedge assembly for a stator slot that includes a non-magnetic, corrugated substrate having alternating ridges and grooves and a plurality of ferromagnetic wedges inserted into the grooves of the corrugated substrate.

The invention relates to an electric motor including a drive shaft carrying a rotor, a device for powering and controlling winding phases of a stator of the motor on an electronic board fixed to the motor, and one or more angle encoders, the angle encoders including sensors positioned on the electronic board and an angular encoding element disposed facing the sensors on the drive shaft, and the electronic board includes power electronics for controlling the windings and a unit for computing and controlling the phase of the windings.

The invention relates to an electric motor including a drive shaft carrying a rotor, a device for powering and controlling winding phases of a stator of the motor on an electronic board fixed to the motor, and one or more angle encoders, the angle encoders including sensors positioned on the electronic board and an angular encoding element disposed facing the sensors on the drive shaft, and the electronic board includes power electronics for controlling the windings and a unit for computing and controlling the phase of the windings.

A rotor for a rotating electrical machine, is disclosed, the rotor comprising a plurality of salient poles (14), rotor windings (16) on the salient poles, and a wedge (40; 60) for retaining the rotor windings of two adjacent poles, the wedge extending partway through the windings in an axial direction. The wedge comprises two legs (42, 44; 62, 64) arranged at an angle to each other. The wedge is configured to be slid axially in the rotor during assembly. This may maximize the space available for axial air flow between adjacent salient poles, while allowing the wedge to have sufficient strength to retain the windings, particularly in machines where higher forces may be developed.

A rotor for a rotating electrical machine, is disclosed, the rotor comprising a plurality of salient poles (14), rotor windings (16) on the salient poles, and a wedge (40; 60) for retaining the rotor windings of two adjacent poles, the wedge extending partway through the windings in an axial direction. The wedge comprises two legs (42, 44; 62, 64) arranged at an angle to each other. The wedge is configured to be slid axially in the rotor during assembly. This may maximize the space available for axial air flow between adjacent salient poles, while allowing the wedge to have sufficient strength to retain the windings, particularly in machines where higher forces may be developed.

An electric motor assembling device includes a lifting mechanism, a pressure mechanism, a press head mechanism, an assembling station and a control mechanism. The pressure mechanism is located at one side of the assembling station, and the lifting mechanism and the press head mechanism are located at the other side of the assembling station. The pressure mechanism includes a pressure mechanism body and a pushing portion connected with the pressure mechanism body, and the pushing portion is configured to be pushed into the assembling station relative to the pressure mechanism body. The press head mechanism includes an abutting portion at a side facing the assembling station. The lifting mechanism includes a clamping portion at a side facing the assembling station, and the clamping portion is configured to move in a direction running away from the assembling station relative to the press head mechanism.

An electric motor assembling device includes a lifting mechanism, a pressure mechanism, a press head mechanism, an assembling station and a control mechanism. The pressure mechanism is located at one side of the assembling station, and the lifting mechanism and the press head mechanism are located at the other side of the assembling station. The pressure mechanism includes a pressure mechanism body and a pushing portion connected with the pressure mechanism body, and the pushing portion is configured to be pushed into the assembling station relative to the pressure mechanism body. The press head mechanism includes an abutting portion at a side facing the assembling station. The lifting mechanism includes a clamping portion at a side facing the assembling station, and the clamping portion is configured to move in a direction running away from the assembling station relative to the press head mechanism.

A core having an annular core-back portion and a plurality of tooth portions formed, at intervals in a circumferential direction, on an inner circumferential surface of the core-back portion to protrude, a coil wound around each tooth portion with an insulator therebetween, and a mold resin portion coating the core and the coil, are included. The core-back portion is formed to be discontinuous at at least one position in the circumferential direction. The insulator has, at two or more positions in the circumferential direction, protrusions protruding to an outer side in a radial direction beyond an outer circumferential surface of the core-back portion. The mold resin portion does not coat a protrusion surface, along an axial direction, on the outer side in the radial direction of each protrusion.