Abstract: An electronic component for charging an electrical energy storage unit, comprising a connector connected to an electrical grid configured to supply a three-phase AC voltage, an inverter/rectifier, and a fourth switching arm connected in parallel with the switching arms of the inverter/rectifier. The inverter/rectifier includes three switching arms connected in parallel. Each switching arm has two switches connected to a phase of an AC voltage. The fourth switching arm has two switches connected to the neutral of the electrical grid, and a branch connected in parallel with the switching arms, having two capacitors, and a measuring resistor connected in series with one of the capacitors. The branch and the switching arms are connected between two DC terminals. A first switch is connected in parallel with the measuring resistor and a second switch is connected in series.

Abstract: A filter includes first, second and third conductors; a first capacitor connected between the first conductor and the third conductor; a second capacitor connected between the second conductor and the third conductor; and a third capacitor connected between the first conductor and the second conductor. A pin of the first capacitor is situated higher, in relation to a vertical axis along which a clamp of the second conductor projects upwards, than a pin of the second capacitor, such that an oblique axis along which a first clamp and a second clamp of the third conductor project in opposing directions and the vertical axis form an angle between them of less than 80°, preferably less than 70°, for example 65°.

Abstract: A converter includes an electrical conversion circuit having an input or output connector including two pins designed to receive the input voltage or to supply the output voltage and two flat auxiliary busbars. Each flat auxiliary busbar includes a first flat portion pressed and fixed against the positive pin and the negative pin, respectively, and a second flat portion, with these second flat portions being substantially parallel to each other with the first flat portion of the positive flat auxiliary busbar being pressed and fixed against a flat fixing portion of the positive pin, and the first flat portion of the negative flat auxiliary busbar being pressed and fixed against a flat fixing portion of the negative pin. Two positive and negative main busbars are connected to the electrical conversion circuit and respectively including flat portions respectively pressed and fixed against the second portions of the auxiliary busbars.

Abstract: An electromagnetic pole (17) for a rotary electric machine is disclosed. The pole has a tooth (18) comprising a tooth body (19), the tooth (18) being radially oriented and the tooth (18) comprising a recess (21), a coil (16) comprising a plurality of wire turns (20) wound around the tooth (18) between a first radial end (28) and a second radial end (29), the wire turns (20) which are the most distant from the tooth body (19) between the first radial end (28) and the second radial end (29), forming an outer wire layer (22), the coil (16) comprising a bracing wire (14), the bracing wire (14) being wound on the outer wire layer (22) from the first radial end (28) to the second radial end (29) in less than one turn around the tooth (18) so as to hold in position the outer wire layer (22).

Abstract: An electric device includes input and output interfaces for connection to an AC voltage source and an electrical energy storage unit respectively. A totem-pole power factor correction circuit includes a high-frequency power switching half-bridge and a low-frequency switching half-bridge each having at least two switches, the high-frequency power switching half-bridge further including an inductance. A control system for the power factor correction circuit is designed to generate control signals for the switches of the high-frequency power switching half-bridge. The control system includes at least one positive branch designed to generate a first set of duty cycle values for the control signals from the positive half-cycle of the AC voltage at the input of the device, and a negative branch designed to generate a second set of duty cycle values for the control signals from the negative half-cycle of the AC voltage at the input of the device.

Abstract: A rotor assembly method includes an assembly step configured to install on a rotor shaft of a rotor and a lamination package formed of a stack of laminations. The stack of laminations includes an inner portion and an outer portion which is, compared to the inner portion, more distant to the rotor shaft. Also included is a compression step of compressing the outer portion by an axial compression force to form a compressed outer portion. A winding assembly and fixation step includes winding a field coil on the compressed outer portion, and removing the axial compression force after the field coil is wound.

Abstract: A stator includes a stator core with two opposing end sides and a plurality of grooves arranged in the peripheral direction, and a stator winding having number N?3 of strands, wherein each strand is formed by a shaped conductor. Each groove is radially divided into first to L-th layers, which form first to L/2-th double layers. Within a number A of double layers of a respective winding zone, the receiving sites are nested with a neighbouring (in the peripheral direction) winding zone of another of the strands.

Abstract: Rotor for electric machine includes a rotor shaft, and a laminated core arranged on the rotor shaft and formed from stacked electrical laminations with radially outwardly protruding laminated core projections. A first end plate arranged on a first axial side of the laminated core with radially outwardly protruding end plate projections. A second end plate arranged on an opposite second axial side of the laminated core with radially outwardly protruding end plate projections. A plurality of rotor windings are respectively wound around an end plate projection of the first end plate, and an axially opposite end plate projection of the second end plate and a laminated core projection extends axially between the two end plate projections. A pot-shaped first end cap axially covers the first end plate, a pot-shaped second end cap axially covers the second end plate. A tubular cooling channel runs axially between two adjacent rotor windings.

Abstract: A rotor for an electric machine includes a rotor shaft and a laminated core which is arranged on the rotor shaft and formed from stacked electrical laminations and which has radially outwardly projecting laminated core protrusions. Rotor windings are each wound around a laminated core protrusion. A pole separator is arranged between two adjacent laminated core protrusions and has a cooling duct, which runs in the pole separator, for a coolant.

Abstract: A method of AC acquisition for an electric machine, includes: a step in which an inverter is operated according to a six-step operation, during which a fundamental period of 2? is divided into six equal time periods, maximum one switching action occurring during each; a step in which a plurality of values of an AC of the inverter from a first reference frame are sampled for each equal time period; a step in which the sampled values are rotated from the first reference frame to a second reference frame; a step in which for each equal time period, the values from the second reference frame are averaged; and a step in which a current value is estimated according to the averaged sampled values.

Abstract: A rotor assembly method includes an assembly step configured to install a stack of laminations on a rotor shaft of a rotor, wherein the stack of laminations includes an inner portion and an outer portion which is, compared to the inner portion, more distant to the rotor shaft. A compression step includes compressing the inner portion to provoke accordingly a fan-out of the outer portion, so as to form a compact inner portion and a fan-out outer portion. A compacting step includes compacting the fan-out outer portion to form a compact outer portion, a compact lamination package including the compact inner portion and the compact outer portion being thus formed.

Abstract: A stator for an electrical machine includes a stator core in which a plurality of grooves distributed in a circumferential direction are formed and which has two opposite end faces, and a stator winding having a plurality of shaped conductors. The shaped conductors each have a first leg portion, a second leg portion and a head portion connecting the leg portions to one of the end faces. The leg portions extend through different grooves and are spaced apart from one another by an increment of a number of grooves.

Abstract: A shaped conductor for a winding of an active part of a rotating electric machine, the shaped conductor being formed by a wire and having a first wire portion, which extends along the wire starting from a free end of the shaped conductor and, at the free end, has an end face, and a second wire portion, which adjoins the first wire portion, extends along the wire and has a cross-sectional area.

Abstract: A transmission system for a vehicle, including a housing, having a main housing and a cover part, and a reducer and a motor arranged in the housing. A lubrication system is arranged in the housing and includes a fluid passage extending between the reducer and the motor. The fluid passage extends from a first gear of the reducer to a motor shaft of the motor to guide a lubricating medium to the motor by means of the fluid passage to cool the motor.

Abstract: A rotor for an electric machine includes a laminated core formed from stacked electrical laminations and having magnet pockets arranged therein, a plurality of magnets, of which at least one is inserted into each of the magnet pockets, and a plurality of clearances which are in each case delimited by the magnets inserted into one of the magnet pockets and by the laminated core. A first connection channel connects a first one of the clearances which is associated with a first one of the magnet pockets to a second one of the clearances which is associated with a second one of the magnet pockets. An electric machine may include such a rotor, and a vehicle may include such an electric machine.

Abstract: A rotor for an electric machine includes a rotor shaft and a rotor laminated core which is mounted thereon with n sub-cores (SP1 . . . SP6) which are stacked axially on one another and a plurality of rotor magnets which are arranged in the sub-cores (SP1 . . . SP6). The magnetic poles of at least two sub-cores (SP1 . . . SP6) are twisted in relation to one another by a gradation angle (?ST). In addition, the rotor shaft or a disc mounted thereon has a plurality of depressions which are spaced apart from one another by an angular distance ?i,i+1=k·?p+?ST, wherein ?P indicates the pole angle and wherein k is an even number. An electric machine may include the rotor, a vehicle may include the electric machine.

Abstract: Cooling structure including a fluid distribution layer with a first opening and a second opening for a cooling fluid, which are arranged at opposite sides of the fluid distribution layer. Also included is an elongated inner area, in which the first opening is positioned, an elongated outer area, in which the second opening is positioned, with two side arms, which partly surround the inner area, and a barrier separating the inner area and the outer area, The width of the inner area decreases along a direction from the first opening to the second opening. In addition, an electric power converter and a vehicle are disclosed.

Abstract: The present invention relates to a switching cell for an automotive vehicle. The switching cell includes at least one power module, a DC link capacitor, and a connecting device between the power module and the DC link capacitor. The power module has at least one connecting tab of a first polarity and at least one connecting tab of a second polarity, the connecting tabs being in a same connection plane and separated by a space. The connecting device includes at least one connecting part in contact with the connecting tab of the first polarity and a covering part covering the space between the connecting tabs, the covering part being offset from the connecting part perpendicularly to the connection plane.

Abstract: Stator for an electric machine, having a stator core with two axial end sides, a stator winding which extends through the stator core in the axial direction and is formed from a plurality of conductor segments, and covers of a first and a second type. The conductor segments have, at one of the end sides, end sections which are electrically conductively and mechanically connected to one another in pairs to form end section arrangements. The covers of the first type each cover at least two end section arrangements at their free end, and the covers of the second type each cover at least one end section arrangement at their free end.

Abstract: A stator device for an electric machine includes a stator core which has an axial end face and a plurality of hollow guides each of which passes axially through the stator core, has an outer portion projecting out of the stator core at the end face and is designed to guide a temperature control fluid in their interior. A compensating body forms a plurality of fluid conduits which are separated from one another, each adjoining the outer portion of one of the hollow guides in order to convey the temperature control fluid between an opening of the fluid conduit and the interior of the hollow guide.