Abstract: An electric motor vehicle traction motor, including: a liquid-cooled motor stator, a dry-running motor rotor, and a fluid-tight split cage which separates the motor stator and the motor rotor from one another fluidically, the split cage being formed by a fiber composite body, wherein the split cage is axially prestressed in a long-lasting manner by a split cage axial stressing apparatus.

Abstract: A method for producing a stator includes: providing a main body, the main body having: a cavity for accommodating a rotor, and a plurality of slots, extending axially through the main body, the plurality of slots accommodating electrical conductors of a winding, providing slot insulation so as to ensure that a slot interior of each slot of the plurality of slots is electrically insulated from the main body and is fluidtight; and forming a respective end plate on each of two ends of the main body, the end plates being attached in a fluidtight manner to the main body so as to ensure that no fluid can get between the end plate and the main body and reach the cavity of the main body. Each end plate has a radial part and an axial part, and the axial part has an insert.

Abstract: A stator of an electric machine includes: a laminated stator core having sheet-metal blanks, which have slots; and stator windings, which are arranged in the slots of the laminated stator core together with slot insulation, such that, within the slots, a respective slot insulation is positioned between the sheet-metal blanks and the stator windings in order to electrically insulate the stator windings from a sheet-metal material of the sheet-metal blanks, and such that, when viewed in an axial direction, the stator windings protrude from the slots, project laterally with respect to the laminated stator core, and form winding overhangs laterally adjacent to the laminated stator core. When viewed in a radial direction, coolant flow channels are formed radially on an inside and/or radially on an outside, directly adjacent to the slots accommodating the stator windings. The stator windings accommodated in the slots of the laminated stator core are impregnated.

Abstract: An electric motor vehicle traction motor has a motor housing, a liquid-cooled motor stator and a dry running internal motor rotor which is separated fluidically from the motor stator. The motor stator is formed by a stator body with radial stator slots and a plurality of stator coils. The axial phase windings are arranged in the stator slots, and the winding heads of protrude axially out of the stator slots. A slot potted body is made from a potting material and by way of which the stator coil axial phase windings are potted into the stator slots in a fluid-tight manner. The stator coil winding heads are of potting-free configuration and protrude in each case directly into a fluid-tight cooling space. As a result of the omission of a separate split cage, a small air gap is realized and manufacturing costs are reduced.

Abstract: A rotor (1) for an electric machine has a sheet stack (2) arranged between a first end plate (3) and a second end plate (4). The first end plate and the second end plate (3, 4) are connected to each other by pipes (5) that extend at least partially through the sheet stack (2). Each pipe (5) has a cooling channel (6) for conducting a coolant. The pipes (5) and the first end plate (3) are constructed as an integral pipe/end plate (8).

Abstract: A canned motor includes a stator with a laminated core and a winding with winding heads, and including a rotor, which is mounted so as to be rotatable relative to the stator, and a can element, which is arranged between the stator and the rotor, and a support ring, which is coupled to the can element. The support ring on its own and/or together with the can element provides a support section which extends at least partially axially adjacent to the laminated core. The support section lies with a seal section against a seal device such that a rotor space is sealed off in coolant-tight fashion with respect to a stator space.

Abstract: An electric machine (10) has a rotor (15) and a stator (11). The rotor (15) has a rotor shaft (16) and a rotor laminated core (17). The stator (11) has a housing (12) with a housing cover (14) and a stator laminated core (13). The rotor shaft (16) is mounted rotatably in the housing (12) via bearings (18, 19). Each bearing (18, 19) has a bearing inner ring (18a, 19a) that bears against the rotor shaft (16), and a bearing outer ring (18b, 19b) that bears against the housing (12). Sections (24) of the housing (12) against which the respective bearing outer ring (18b, 19b) bears are formed from a light metal alloy material or a light metal material that has a transformed material structure such that the housing (12) is of electrically insulating configuration in these sections (24).

Abstract: An electric machine (1) has a housing (2) in which a stator (3) and a rotatable rotor (4) are arranged. The stator (3) is of hollow-cylindrical design and is arranged in a stator chamber (5) of the housing (2). The rotor (4) is arranged radially inside the stator (3) in a rotor chamber (8). An air gap (9) is provided between the rotor (4) and the stator (3) to permit rotation of the rotor (4) relative to the stator (3). The stator chamber (5) is delimited radially on the inside by a cylindrical wall (10) that is sealed with respect to the housing (2) by at least one sealing element (12). The housing (2) has at least one axially projecting protrusion (13) that forms an axial end face (17) and a radially outwardly facing circumferential shoulder (18) that supports the sealing element (12).

Abstract: A drive train (100) has an electric machine (1) with a stator (2), an inverter (3) and a connection housing (4) with a coolant chamber (4.1) in which an electric conductor (5) for connecting a directly liquid-cooled stator winding (2.2) of the stator (2) to the inverter (3) is arranged. The coolant chamber (4.1) is open in a liquid-permeable manner toward a stator chamber (2.1) of the stator (2) at an opening (4.3). The electric conductor (5) is guided out of the coolant chamber (4.1) to the inverter (3) at a leadthrough (4.2), and the leadthrough (4.2) is sealed in a liquid-tight manner. A motor vehicle (200) with the drivetrain (100) also is provided.

Abstract: An electrical drive device includes a stator and a rotor. The stator has a main body and windings of an electromagnetic coil. The main body has clearances, and the windings are at least partially arranged in the clearances. The stator has two coolant inlets and a coolant collecting device with a coolant outlet. The coolant inlets are in fluidic connection with the coolant outlet by way of the clearances.

Abstract: A rotor for an electric motor has a shaft and a rotor laminated core connected to the shaft. A coolant duct is formed in the rotor in order to enable coolant to flow through the coolant duct. The coolant duct has a first portion, which runs at least in regions in the rotor laminated core. The rotor laminated core has a sleeve on the outer circumferential surface in order to avoid coolant escaping at the outer circumferential surface of the rotor laminated core. In a method for producing a rotor, a material having glass fibers or carbon fibers and a resin are applied to the rotor laminated core, and the resin is subsequently cured in order to produce the sleeve.

Abstract: A canned motor has a stator which has a laminated core and a winding with winding heads which project out of the laminated core on end sides of the laminated core. A rotor is mounted rotatably with respect to the stator. A can is arranged between the stator and the rotor. An end plate bears against an end side of the laminated core and has recesses for leading through the winding. A supporting ring is arranged concentrically with respect to the can on the outer side of the can in the region of the winding heads. The end plate and the supporting ring are configured as a single-piece supporting end plate.

Abstract: A temperature control arrangement (1) of a motor vehicle has an electric machine (2) with a rotor (3) and a stator (4), a stator cooling arrangement with a first cooling circuit (6) for cooling the stator (4) with a first cooling medium (8) flowing in the first cooling circuit (6) that is formed by a motor vehicle cooling circuit, a rotor cooling arrangement with a second cooling circuit (7) for cooling the rotor (3) with a second cooling medium (9) flowing in the second cooling circuit (7) that is formed by a transmission oil cooling circuit, a heat exchanger (10) that thermally couples the first cooling circuit (6) and the second cooling circuit (7). The stator cooling arrangement is configured such that the first cooling medium (8) makes direct contact with the stator windings.

Abstract: A drive train (1) for a motor vehicle (100) has an electric machine (2) with a rotor (3), a stator (4) and an air gap (5) between the rotor (3) and the stator (4). The drive train (1) also has a transmission (6) and a cooling circuit (7) for conducting a coolant through the electric machine (2) and the transmission (6). The coolant is provided for lubricating and cooling the transmission (6) and for directly cooling electrical conductors of the stator (4). The cooling circuit (7) is provided in such a way that the coolant does not enter the air gap (5).

Abstract: An electric machine (10) has a rotor (15) and a stator (11). The rotor (15) has a rotor shaft (16) and a rotor laminated core (17). The stator (11) has a housing (12) with a housing cover (14) and a stator laminated core (13). The rotor shaft (16) is mounted rotatably in the housing (12) via bearings (18, 19). Each bearing (18, 19) has a bearing inner ring (18a, 19a) that bears against the rotor shaft (16), and a bearing outer ring (18b, 19b) that bears against the housing (12). Sections (24) of the housing (12) against which the respective bearing outer ring (18b, 19b) bears are formed from a light metal alloy material or a light metal material that has a transformed material structure such that the housing (12) is of electrically insulating configuration in these sections (24).

Abstract: Described is a method for producing a stator, in particular for electric motors. In a first step, a plurality of flexible electrical conductors are combined to form a conductor bundle. In a second step, two end regions of the conductor bundle are pressed in such a way that a central region of the conductor bundle formed between the two end regions remains flexible. Also described is a corresponding stator.

Abstract: A rotor (1) for an electric machine has a sheet stack (2) arranged between a first end plate (3) and a second end plate (4). The first end plate and the second end plate (3, 4) are connected to each other by pipes (5) that extend at least partially through the sheet stack (2). Each pipe (5) has a cooling channel (6) for conducting a coolant. The pipes (5) and the first end plate (3) are constructed as an integral pipe/end plate (8).

Abstract: A method for producing an electric drive machine, including the steps of providing a stator having a cavity for the introduction of a rotor and introducing a hardenable seal into the cavity in contact with the stator and then hardening the seal.

Abstract: A coil segment, in particular for a stator coil, wherein the coil segment has a conductor bundle, wherein the conductor bundle has a multiplicity of electrical conductors, wherein the conductor bundle has a form fit, wherein the conductor bundle has at least one cutout for feeding coolant. Furthermore, a method for manufacturing a stator coil, a stator coil having a coil segment according to the present invention, a machine having a stator coil according to the present invention, and a vehicle having a machine according to the present invention.

Abstract: A device for sealing off multiple grooves of a stator of an electric drive machine with respect to a rotor of the electric drive machine. The device includes a seal which is able to be inserted simultaneously into the multiple grooves, wherein the seal is designed as an electrical insulator. The seal is designed to seal off the grooves with respect to the rotor. Windings of an electrical coil are able to be arranged in the grooves. The seal is of integral or unipartite design.