A rotating electrical machine includes a rotor mounted on a shaft, a stator including stator windings with end leads, a bracket which supports a bearing for the shaft, and a frame which supports and encloses the stator. The frame includes a first part and a second part. An aperture for the end leads is formed between the first part and the second part. This can allow an impregnated stator to be inserted into the frame without the need to manipulate the end leads.

A rotating electrical machine includes a rotor mounted on a shaft, a stator including stator windings with end leads, a bracket which supports a bearing for the shaft, and a frame which supports and encloses the stator. The frame includes a first part and a second part. An aperture for the end leads is formed between the first part and the second part. This can allow an impregnated stator to be inserted into the frame without the need to manipulate the end leads.

The disclosure relates in general to a method and a system for producing a stator for an electric machine. The stator has a laminated core with individual adjacently arranged steel sheets along an axial direction of the stator. At least some portion of the steel sheets has an electric insulating material. The steel sheets of a laminated core of a stator are stamped out of a raw material. The steel sheets are stacked along the axial direction of the stator to form the laminated core. The steel sheets of the laminated core are clamped along the axial direction of the stator. The clamped laminated core is accommodated in a receptacle. Cut edges of the clamped laminated core accommodated in the receptacle are heated by a heating device in such a way that eddy currents are induced in at least one external portion of the laminated core.

The disclosure relates in general to a method and a system for producing a stator for an electric machine. The stator has a laminated core with individual adjacently arranged steel sheets along an axial direction of the stator. At least some portion of the steel sheets has an electric insulating material. The steel sheets of a laminated core of a stator are stamped out of a raw material. The steel sheets are stacked along the axial direction of the stator to form the laminated core. The steel sheets of the laminated core are clamped along the axial direction of the stator. The clamped laminated core is accommodated in a receptacle. Cut edges of the clamped laminated core accommodated in the receptacle are heated by a heating device in such a way that eddy currents are induced in at least one external portion of the laminated core.

A rotor manufacturing apparatus is configured to manufacture a rotor that includes a tubular rotor core having multiple slots, multiple magnets respectively accommodated in the slots, and multiple pieces of plastic fixing the magnets to the rotor core. The rotor manufacturing apparatus includes plungers configured to extrude the plastic toward the slots, and a drive unit configured to be movable toward and away from the rotor core. The drive unit includes accommodating portions and an urging section. The accommodating portions respectively receive the plungers such that the plungers are movable relative to the accommodating portions in a movement direction of the drive unit. The urging section urges the plungers in an extrusion direction of the plastic from inside the accommodating portions.

A rotor manufacturing apparatus is configured to manufacture a rotor that includes a tubular rotor core having multiple slots, multiple magnets respectively accommodated in the slots, and multiple pieces of plastic fixing the magnets to the rotor core. The rotor manufacturing apparatus includes plungers configured to extrude the plastic toward the slots, and a drive unit configured to be movable toward and away from the rotor core. The drive unit includes accommodating portions and an urging section. The accommodating portions respectively receive the plungers such that the plungers are movable relative to the accommodating portions in a movement direction of the drive unit. The urging section urges the plungers in an extrusion direction of the plastic from inside the accommodating portions.

A rotor core molding system, for molding magnets in an unmolded rotor core to provide a molded rotor core for an electrical motor, comprises first and second molds arranged to allow clamping at least one unmolded rotor core between the molds, a pre-adjustment arrangement for allowing to pre-adjust a distance between the molds in a preset open configuration of the molds to a pre-adjusted distance, and a mold closure arrangement for allowing to close the molds from the preset open configuration to a closed configuration by moving the molds towards one another to clamp unmolded rotor core(s) provided between the molds with a predetermined pressure in between the molds in the closed configuration. The pre-adjustment arrangement is configured to provide a relatively long-range distance movement, especially corresponding to one or more rotor core heights. The mold closure arrangement is configured to provide a relatively short-range distance movement.

A method for manufacturing an assembly including a stator and a housing circumferentially surrounding the stator includes inserting the stator into the housing, fastening the stator to an inside of the housing, and vacuum impregnating the assembly including the stator and the housing in a vacuum impregnation system.

A method for manufacturing an assembly including a stator and a housing circumferentially surrounding the stator includes inserting the stator into the housing, fastening the stator to an inside of the housing, and vacuum impregnating the assembly including the stator and the housing in a vacuum impregnation system.