Abstract: A rotor for an electric machine is disclosed. The rotor has a rotor shaft, a laminated core arranged on the rotor shaft and a plurality of stacked electrical laminations. The rotor also includes a first end plate arranged on an axial side of the laminated core and having radial protrusions arranged along its circumference, a second end plate arranged on the opposite axial side of the laminated core and having radial protrusions arranged along its circumference, a plurality of rotor windings which are each wound around a protrusion of the first end plate and around an axially opposite protrusion of the second end plate. A central cooling duct runs in the rotor shaft for supplying a coolant, and a radial cooling duct runs outwards from the central cooling duct in the laminated core. In addition, an electric machine and a vehicle having an electric machine of this type are described.

Abstract: A rotor laminated core for a rotor of an electric machine has a plurality of rotor laminations which are stacked axially one on the other and each have a recess. The recesses form a magnet pocket for receiving a rotor magnet. The rotor laminated core has a terminal lamination which is arranged on the axial side of the rotor laminated core and has a further recess which is axially aligned with the recess in the adjacent rotor lamination and is narrowed with respect to the recess in the adjacent rotor lamination.

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 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: 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 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 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: A rotor for an electric machine includes a laminated core formed from stacked electric sheets and having a plurality of magnet pockets, each axially penetrating the laminated core, a plurality of magnets, of which at least one is inserted into each of the magnet pockets. A plurality of free spaces are each delimited by the magnets inserted into one of the magnet pockets and by the laminated core. A first end sheet is arranged on an axial side of the laminated core and a second end sheet arranged on the opposite axial side of the laminated core and has an axially curved portion by which a connecting channel is formed, which connects a first of the free spaces to a second of the free spaces.

Abstract: A housing for an electric machine has a hollow-cylindrical housing casing and a circular bearing plate composed of a first material which is arranged at one axial end of the housing casing. A reinforcing element composed of a second material is embedded in the bearing plate. In addition, an electric machine having such a housing, a vehicle having such an electric machine and a method for producing the housing are described.

Abstract: A rotor for a rotary electric machine, the rotor having an axis of rotation and including a rotor shaft extending parallel to the axis of rotation, a rotor body mounted on the rotor shaft and having a plurality of teeth protruding radially, and at least one field coil wound around the plurality of teeth, the field coil forming coil ends at axial ends of the teeth. At least one cover mounted on the rotor shaft and configured to cover the coil ends. The cover includes a plurality of holes configured to each receive a solid balancing element which provides an additional mass to the rotor in order to balance said rotor.

Abstract: A rotor for an electric machine is disclosed. The rotor has a rotor shaft, a laminated core arranged on the rotor shaft and a plurality of stacked electrical laminations. The rotor also includes a first end plate arranged on an axial side of the laminated core and having radial protrusions arranged along its circumference, a second end plate arranged on the opposite axial side of the laminated core and having radial protrusions arranged along its circumference, a plurality of rotor windings which are each wound around a protrusion of the first end plate and around an axially opposite protrusion of the second end plate. A central cooling duct runs in the rotor shaft for supplying a coolant, and a radial cooling duct runs outwards from the central cooling duct in the laminated core. In addition, an electric machine and a vehicle having an electric machine of this type are described.

Abstract: The invention specifies a rotor (1, 1a . . . 1f) for an electrical machine (14), which rotor comprises a rotor shaft (2, 2a . . . 2f), a rotor laminated core (3), which sits on the rotor shaft (2, 2a . . . 2f) with a press fit, a first rotor holder (5a . . . 5c), which is arranged adjacent to the rotor laminated core (3) on a first side thereof, and a second rotor holder (6a . . . 6d), which is arranged adjacent to the rotor laminated core (3) on a second, opposite side thereof. Furthermore, the rotor comprises a first shaft securing ring (7), which sits in a first groove of the rotor shaft (2, 2a . . . 2f) and axially secures the rotor laminated core (3). In addition, the invention specifies an electrical machine comprising a stator (15) and a rotor (1, 1a . . . 1f) of said type, and a vehicle (16) with at least two axles, at least one of which is driven. The driving of the vehicle (16) is performed at least partially or temporarily by the electrical machine (14) of the abovementioned type.

Abstract: A rotor for an electric machine includes a sheet metal package formed from stacked electrical sheets and having magnet pockets arranged therein, a plurality of magnets of which at least one is inserted into each of the magnet pockets, a plurality of clearances which are each delimited by the magnets inserted into one of the magnet pockets and by the sheet metal package, a filling opening which is arranged on an axial side of the sheet metal package and through which a first of the clearances is exposed, and a venting opening which is arranged on the axial side and through which a second of the clearances is exposed. The outer end of the filling opening and/or the outer end of the venting opening are widened. Also described are an electric machine having the rotor, a vehicle having the machine and a method for producing the rotor.

Abstract: Specified is a rotor (2, 2a, 2b) for an electric machine (1), said rotor (2, 2a, 2b) comprising a rotor shaft (3); a laminated rotor core (4) which by way of an interference fit sits on the rotor shaft (3); a first rotor holder (6, 6a, 6b) which on the rotor shaft (3), so as to be adjacent to the laminated rotor core (4), is assembled on a first side of the latter with the aid of an interference fit; and/or a second rotor holder (7, 7a, 7b) which on the rotor shaft (3), so as to be adjacent to the laminated rotor core (4), is assembled on a second, opposite side of the latter with the aid of an interference fit. Moreover specified are an electric machine (1) having such a rotor (2, 2a, 2b) and a vehicle (22) having such an electric machine (1).

Abstract: The invention specifies a rotor (1, 1a . . . 1f) for an electrical machine (14), which rotor comprises a rotor shaft (2, 2a . . . 2f), a rotor laminated core (3), which sits on the rotor shaft (2, 2a . . . 2f) with a press fit, a first rotor holder (5a . . . 5c), which is arranged adjacent to the rotor laminated core (3) on a first side thereof, and a second rotor holder (6a . . . 6d), which is arranged adjacent to the rotor laminated core (3) on a second, opposite side thereof. Furthermore, the rotor comprises a first shaft securing ring (7), which sits in a first groove of the rotor shaft (2, 2a . . . 2f) and axially secures the rotor laminated core (3). In addition, the invention specifies an electrical machine comprising a stator (15) and a rotor (1, 1a . . . 1f) of said type, and a vehicle (16) with at least two axles, at least one of which is driven. The driving of the vehicle (16) is performed at least partially or temporarily by the electrical machine (14) of the abovementioned type.