In a method for manufacturing lamination stacks of controlled height in a tool, starting material is provided as continuous strip delivered from a coil or as an individual sheet. Laminations are punched from the starting material in several punching steps to a required contour of the laminations. A heat-curing adhesive is applied onto the laminations prior to performing a last punching step. The laminations are combined to a lamination stack. The laminations of the lamination stack are partially or completely heated in a lamination storage. The adhesive is liquefied by heating the lamination stack to build up adhesion and then solidified. Curing the adhesive at the liquefying temperature or solidifying the adhesive in the tool by cooling and subsequently heating the adhesive to a temperature below the liquefying temperature is possible so that the adhesive does not melt but undergoes further curing resulting in higher temperature stability.

The present disclosure relates to tooth assemblies (100) comprising a tooth body (110), a winding (120) arranged around the tooth body (110) and a winding stopper (130). The winding stopper (130) comprises a first portion (131) shaped and dimensioned to be received in a groove (114) of the tooth body (110). Further, the winding stopper (130) comprises a second portion (132) extending from the first portion (131) and protruding from a first lateral wall (113) of the tooth body (110). Winding stoppers (130) and methods (800) for assembling a tooth assembly (100) are also provided.

A smart factory system for an electrified vehicle includes a components supplying section in which a drive-motor and a one-kit module of speed reducer component parts for forming a speed reducer to be assembled to the drive-motor are supplied to an upper portion of an autonomous mobile robot, a stator assembling section in which a stator to be assembled to the drive-motor is assembled, a speed reducer assembling section configured to sequentially assemble the speed reducer component parts to the drive-motor, a sub-assembling section in which the drive-motor, the stator, and the speed reducer component parts are electrically interconnected, and a test section in which an assembly quality of the drive-motor, the stator, and the speed reducer component parts is checked.

Provided is a twisting device of a hair pin-type stator coil. The twisting device of a hair pin-type stator coil, which is to twist-form a plurality of hair pin-type stator coils inserted as a plurality of layers in a stator core, includes i) a base frame, ii) a coil fixing unit installed on the base frame through a plurality of support rods, iii) a twisting tool unit allowing a plurality of stator coils of two adjacent layers, among the plurality of layers, to be inserted thereinto, the two layers being rotated in different directions, and installed to be movable up and down in the base frame on a lower side of the coil fixing unit, iv) a tool driving unit installed on the base frame and operatively connected to the twisting tool unit.

One variation of a system for an electric motor includes a set of coil assemblies defining: an inner radial facet, an outer radial facet, a first axial facet, and a second axial facet opposite the first axial facet. Additionally, each coil assembly in the set of coil assemblies includes a receiving member arranged at the outer radial facet of the coil assembly. Furthermore, the system includes a rotor comprising a set of magnetic elements: encompassing the inner radial facet, the outer radial facet, the first axial facet, and the second axial facet of the set of coil assemblies; and defining a radial magnetic tunnel. The system also includes a housing: engaging the receiving member of each coil assembly, in the set of coil assemblies to couple the housing to the set of coil assemblies; and includes a shaft coupled to the set of magnetic elements.

The invention relates to a method and a device for deforming a U-shaped electric conductor into a hairpin which can be used to produce a bar winding of an electric machine. Prior to the deforming process, the electric conductor has two parallel limbs which are integrally connected together by means of a connection limb, and the three limbs are arranged on an imaginary plane. According to the invention, the two parallel limbs are first clamped in a respective clamping device, the first limb together with the first clamping device is then held in place, the second limb is then moved away from the first limb on a circular path, thereby stretching the connection limb, and a deformation section of the electric conductor is simultaneously or subsequently moved on a guide surface of a twisting guide element, wherein the guide surface protrudes radially beyond the circular path.

The present disclosure provides a rotary electric machine including a housing, a stator, a rotor, an outer cover and a plurality of power cables. The stator is disposed in the housing and includes a stator core, a plurality of windings, a circuit board and a plurality of conductive pillars. The plurality of windings are wound around the stator core. The circuit board is fixed on the top of the stator core. The plurality of conductive pillars are electrically coupled with the circuit board. The rotor includes and an end cover. The end cover is disposed between the outer cover and the housing. The plurality of conductive pillars partially penetrate through a notch of the end cover, respectively. Two ends of each of the plurality of power cables are electrically coupled with the corresponding one of the plurality of conductive pillars and a connector, respectively.

A rotating-machine test fixture includes a base, a flexible member and a wedge member. The base includes a longitudinal axis and receives a rotating machine so that an axis of rotation of the rotating machine is aligned in a direction that is substantially parallel to the longitudinal axis of the base. The flexible member includes a first end attached to the base at a first location and a second end slidably attached to the base at a second location to hold the received rotating machine against the base. The wedge member is coupled to the base and moves in a direction that is substantially parallel to the longitudinal axis of the base. The wedge member may be selectably positioned between the received rotating machine and the base to align the axis of rotation of the rotating machine to be substantially parallel to the longitudinal axis of the base.

In a first aspect, a method for removing an electromagnetic module from an electrical machine is provided. The electrical machine comprises a plurality of electromagnetic modules having an electromagnetic material. The electromagnetic modules comprise base and a support extending from the base and supporting the electromagnetic material. The base comprises a bottom surface and a first side surface. The first side surface comprises an axially extending groove defining a cooling channel with an axially extending groove of a first side surface of an adjacent electromagnetic module. The method comprises inserting a rod in a cooling channel formed by the groove of the electromagnetic module to be removed and a groove of an adjacent electromagnetic module; releasing the electromagnetic module to be removed from a structure of the electrical machine; and sliding the electromagnetic module to be removed along the rod.

A hybrid transmission device, comprising an electric machine, wherein the electric machine has an externally situated stator and an internally situated rotor shaft, wherein the hybrid transmission device furthermore comprises a transmission in a transmission housing and a clutch in a clutch housing, wherein the stator is fastened in the transmission housing, wherein the rotor shaft has, at a first end, a pinion that meshes with an intermediate gear of the transmission, wherein the rotor shaft is mounted in the region of the first end and in the region of the oppositely situated second end of the rotor shaft by means of a first and a second bearing, wherein an intermediate plate fastened to the stator is arranged axially in the region of the first end of the rotor shaft, wherein the second bearing for the mounting of the second end of the rotor shaft is fixed directly in the clutch housing, and the first bearing for the mounting of the first end of the rotor shaft is fixed to the transmission housing or is fixed to the intermediate plate, and a method for assembling a hybrid transmission device of said type.