An axial flux machine (100) is provided, in which the rotor (104) is cooled via air cooling, provided by impeller blades (140) located on the opposite side of the rotor (104) to the stator (102). An impeller cover (142) covers the impeller blades (140) such that air channels are defined between adjacent blades. The air channels have an air inlet (146) at an inner radial portion of the rotor (104), and an air outlet (146) at the outer radial extremity of the impeller blades (140). As the rotor (104) turns, the air is drawn through the air channel from the air inlet (144) to the air outlet (146). The motor (100) may be enclosed within a housing (120), in which case air ducting (150,152) may be used to guide air to the air inlet (144), and from the air outlet (146) to the outside of the housing (120).

The invention relates to a shaft generator (01) for generating power during a generating process and/or for providing power during a motor operation, the shaft generator (01) comprising a stator (02) and a rotor (03), the rotor (03) being configured to be disposed around a shaft (04) of a drive unit, in particular bearing-free, and the stator (02) being configured to be disposed around the rotor (03). The shaft generator (01) comprises at least two frequency converters (08, 09), the stator (02) is separable into at least two stator segments (05, 06) and each of the at least two stator segments (05, 06) is assigned one of the at least two frequency converters (08, 09).

An electrical rotating machine comprises a stator including armature pole coils 14 capable of generating magnetic flux when energized, an inner rotor driven to rotate when the magnetic flux passes therethough, and an outer rotor driven to rotate in a magnetic path of the magnetic flux that passes through the first rotor, the outer rotor having portions of different materials, in permeability, which are situated along the periphery of the outer rotor, the inner rotor having a plurality of salient poles situated along the periphery of the inner rotor and wound by wound coils 34 which induce induced current when linked by the magnetic flux generated by the armature pole coils, the stator including a plurality of wound coils 51, 52, 53 winding around each of poles to constitute the armature pole coil for each of the plurality of salient poles.

Generator rotor comprising a rotor rim and a plurality of permanent magnet modules and a plurality of anchors arranged at an outer or inner circumference of the rotor rim such that the anchors substantially fix the permanent magnet modules to the rotor, wherein the permanent magnet modules comprise a base having a bottom surface, two axially extending side surfaces and a top surface, and one or more rows of magnets mounted on said top surface, wherein the two side surfaces of the permanent magnet modules each comprise an axially extending groove, and wherein the anchors have a shape that substantially fits exactly in axially extending grooves of neighboring permanent magnet modules.

An improved electromechanical transducer is provided. In an embodiment, the transducer comprises at least two flux modules, each defining a magnetic circuit having a gap; an armature configured to move along a longitudinal axis passing through the gaps; and a gas containment structure laterally surrounding the armature, wherein: the at least two flux modules are provided outside the gas containment structure; and the armature comprises a reinforcing portion laterally outside of the gaps that is wider in a direction parallel to the flux in the gaps than at least one of the gaps.

A rotor of an asynchronous machine with a cage rotor includes a laminated core formed from a plurality of partial laminated cores. The laminated core has substantially axially extending conductors arranged in slots in the laminated core. The conductors include at least two materials of different electrical conductivities, such that a material with a higher electrical conductivity surrounds a material with a lower electrical conductivity by at least 65% in a circumferential direction.

A motor shaft of an electric motor is produced by producing and interconnecting a first module and an additional module of the motor shaft. The first module of the motor shaft and/or the additional module of the motor shaft is or are provided with a module-end connection element by cold forming and/or by warm forming and/or by hot forming a base module. The first module of the motor shaft produced in this way and the additional module of the motor shaft produced in this way are then interconnected by joining the module-end connection elements on both ends. A motor shaft produced according to this method is formed of a correspondingly configured first module and a correspondingly configured additional module.

A stator includes: a sensor substrate attached to one end of a stator core in an axial direction of the stator core, the sensor substrate being provided with a bearing through hole and being provided with a notch on a periphery, the notch being used for leading out a power supply lead and a sensor lead; a sensor-lead board-in connector disposed between the bearing through hole and the notch on the surface of the sensor substrate on the counter-stator side, the sensor lead being connected to the sensor-lead board-in connector; and a power-supply-lead board-in connector disposed on the surface of the sensor substrate on the counter-stator side such that the power-supply-lead board-in connector faces the sensor-lead board-in connector with the bearing through hole therebetween, the power supply lead being connected to the power-supply-lead board-in connector.

A control device for a steering system in a motor vehicle includes two chambers configured to receive electronic components.

A system includes energy modules that output power to an energy management bus based on load demands. An energy module includes energy cells enclosed within a module housing that provide power to the energy management bus and rotation assemblies attached on opposite ends of the module housing that provide rotational movement for the energy module. The energy module includes a local controller that controls power output from the energy cells to the energy management bus, engages a self-driving mode in response to receiving a disconnection signal from a central controller, and controls movement of the energy module in the self-driving mode to a predetermined location via the first rotation assembly and the second rotation assembly. The central controller receives a current module status from the energy modules and controls a configuration of the energy modules providing power to the energy management bus based on the current module status.