The invention relates to an electric vehicle (10) with an electric motor (18) wherein the electric motor (18) comprises (a) a first electric motor module (38.1) that features a first rotor (42.1) with a first rotor shaft (40.1) and whose rotor shaft (40.1) has a first shaft coupling structure (46a), and (b) at least a second electric motor module (38.2) that features a second rotor (42.2) with a second rotor shaft (40.2) and whose second rotor shaft (40.2) has a second shaft coupling structure (46b), and (c) a rotational bearing (68) by means of which the first rotor shaft (40.1) is mounted, wherein (d) the first rotor shaft (40.1) and the second rotor shaft (40.2) are positively coupled with one another by means of the shaft coupling structures (46). According to the invention, the shaft coupling structures (46) are at least partially surrounded by the rotational bearing (68).

Electrical windings for a low-pressure environment are provided. The electrical windings include a body having an aperture and electrical conductors wound about the aperture in the body; a conductive layer at the body, the conductive layer arranged to electrically shield the electrical conductors; electrical connectors at one or more external sides of the body, the electrical connectors electrically connected to the electrical conductors; an insulating housing containing electrical connections between the electrical connectors and the electrical conductors; a conducting faceplate at the insulating housing, grounding portions of the electrical connectors attached to the conducting faceplate; and a conductive coating on the insulating housing, the conductive coating electrically connected to the conducting faceplate and the conductive layer.

The present invention relates to a logistics area (15, 115, 215, 315, 415) comprising a plurality of planar units (1, 101, 201, 301, 401), wherein each planar unit (1, 101, 201, 301, 401) is equipped with at least one encoder (5) having at least one sensor array (11) for determining the position and/or positioning of at least one mover (40), wherein the at least one mover (40) comprises magnets arranged in at least one pole pitch grid, wherein further the plurality of planar units (1, 101, 201, 301, 401) being arranged to a surface in such a way that the encoders (5) of the planar units (1, 101, 201, 301, 401) form at least an at least area-wise uniform grid, wherein the distance of the encoders (5) of at least two planar units (1, 101, 201, 301, 401) and/or at least two encoders (5) of a planar unit (1, 101, 201, 301, 401) corresponds to a multiple of the pole pair width of the magnets of the at least one mover (40), as well as a method for operating at least one logistics surface and a computer program product as well as a control unit for a logistics surface.

The present invention relates to an air-cooling system for vertical rotary electric machines (200) comprising a one-piece, modular ventilation box (100) arranged separately and outside the vertical rotary electric machine (200) to form an upward-flow cooling circuit therewith, in which the internal space thereof is divided into an intake region (101) and an exhaust region (102). The intake region (101) comprises an air intake (111), at least one intake screen (113) and at least one intake opening (161), and the exhaust region (102) comprises at least one exhaust opening (162), at least one exhaust screen (153) and at least one air outlet (151). The present invention also relates to a ventilation box (100) dedicated to cooling, and to a corresponding vertical rotary electric machine (200).

Rotor for motor or generator, which rotor (11) includes a rotor ring (12), which rotor includes a yoke formed by yoke segments (13) which by arrangement to the rotor ring (12) forms a complete yoke. The yoke segments (13) are provided with one or more magnet blanks (19), which magnet blanks (19) are formed by one or more permanent magnets (18).

Exchangeable stator components are selected and exchangeable rotor components are selected to transform a motor from one motor class to another motor class. A motor comprises three stator rings, three rotor rings, a first input, and a second input. The first input comprises two exchangeable stator components selected from a stator component group consisting of a stator spacer ring and an axially magnetized stator magnet ring. The second input comprises two exchangeable rotor components selected from a rotor component group consisting of a rotor spacer ring and an axially magnetized rotor magnet ring. The first input and the second input determine a motor class for the motor, the exchangeable stator components being exchangeable for different exchangeable stator components from the stator component group to manufacture another motor having a different motor class, the exchangeable rotor components being exchangeable for different exchangeable rotor components from the rotor component group to manufacture another motor having another different motor class.

A direct current machine comprises a stator and a rotor, wherein one of these two has a plurality of magnets which are alternatively magnetized north and south, and the respective other part has a plurality of coils which are formed by teeth around which insulated wire is wound, wherein between these coils there are formed respective slots and the coils are combined in coil groups; and a current controlled inverter for driving the machine; wherein each coil group has a front terminal and a rear terminal and the coil groups are connected such that a defined wiring concept is formed and wherein the front terminals and end terminals are connected via an interconnection element which is specifically designed for a defined wiring concept.

A housing for a crankshaft starter generator is designed so as to be divisible and/or a crankshaft starter generator without a housing and with a stator is designed so as to be divisible.

A dynamo-electrical machine includes a stator and a rotor rotatable relative to the stator about an axis of rotation, the stator and/or the rotor having a plurality of segments arranged one after another in a rotational direction of the rotor, the segments each having opposing ends facing in opposite rotational directions, and being provided with flanges on the opposing ends, with respective flanges of neighboring ones of the segments in confronting relationship, each of the flanges having at least one hole oriented in the rotational direction, the at least one hole of at least one of the respective confronting flanges having an internal thread and threadably receiving a sleeve having an external thread, the respective confronting flanges being spaced apart by the sleeve, wherein a screw is received through the at least one hole of the one of the respective confronting flanges and through the sleeve and engages in the at least one hole of the other one of the respective confronting flanges, thereby exerting a force on the one of the respective confronting flanges, and connects the respective confronting flanges to each other via the sleeve.

An electric machine has a multiplicity of windings having a first terminal and a second terminal. At least one node exists to which one of the two terminals of a respective winding from the multiplicity of windings is electrically connected. The corresponding other terminal of a respective winding from the multiplicity of windings is electrically connected to a phase terminal, and to a modular multilevel converter that has a multiplicity of individual modules that are connected up in series to form a ring. At least one tap can be arranged between two respective adjacent individual modules and provides a phase terminal to which the first or the second terminal of a winding from the multiplicity of windings of the electric machine is electrically connected. A number of taps of the modular multilevel converter corresponds exactly to a number of windings from the multiplicity of windings of the electric machine.