Abstract: A stator (2) for an electric machine (1) includes a laminated core (3) arranged axially between a first end plate (4) and a second end plate (5). A cooling line (6) for introducing a coolant into at least one distribution duct (7) at the particular end plate (4, 5) is arranged outside the end plates (4, 5) and the stator (2) and is fluidically connected to the at least one distribution duct (7) in the particular end plate (4, 5). The laminated core (3) includes multiple axial ducts (8) for guiding the coolant through the stator (2). The axial ducts (8) are fluidically connected to the at least one distribution duct (7) in the particular end plate (4, 5) for the inflow of the coolant. An outflow for the coolant is formed by at least one end-face opening (9) in the particular end plate (4, 5). The at least one opening (9) is configured for spraying the coolant out of the axial ducts (8) onto winding overhangs (10) of the stator (2).

Abstract: An electric machine includes a housing, a stator, a rotor arranged radially within the stator, and a plastic body fixing the stator relative to the housing. The plastic body is electrically insulating. Further, the plastic body radially surrounds an outside of at least one soft magnetic core of the stator and first and second winding overhangs of the stator, and axially surrounds an end face of the first winding overhangs and an end face of the second winding overhangs. Additionally, the plastic body defines at least one channel for accommodating a coolant, the at least one channel having a first portion extending circumferentially along at least 40% of the end face of the first winding overhangs, a second portion extending along an outer circumferential surface of the stator, and a third portion extending circumferentially along at least 40% of the end face of the second winding overhangs.

Abstract: A vehicle cooling arrangement includes a first electric machine with a drive output shaft and a first rotor mounted to rotate about a rotation axis and extending axially around the rotation axis. A first stator surrounds the first rotor peripherally. A second electric machine is mounted axially close to the first electric machine and has a second rotor mounted to rotate about the rotation axis and the drive output shaft. A second stator surrounds the second rotor peripherally. A common housing forms a casing for the first and second electric machines and the drive output shaft extends axially through the housing. The first and second electric machines form a coolant circuit having at least one coolant line arranged to cool the first and second rotors and a second coolant line parallel to the first coolant line and arranged to separately cool the first and second stators.

Abstract: A rotor (1) for an electric machine (25) which comprises a rotor support (2). The rotor support has cylindrical inner and outer shells (3, 4). A magnetic flux-carrying rotor component has first and second end faces (6, 7) and carries the cylindrical outer shell (4). A rotationally shaft section (8) is arranged in an inside space (9) of the rotor support and mounted coaxially with the rotor support. At least in the area of the first end face (6) the outer shell has first teeth which face toward the magnetic flux-carrying rotor component and a first tooth base between respective pairs of first teeth, and at least in the area of the second end face (7) the outer shell (4) has second teeth which face toward the magnetic flux-carrying rotor component and a second tooth base between respective pairs of second teeth. The invention also relates to an electric machine.

Abstract: A stator (1a, 1 b) for an electric machine. The stator (1a, 1b) is fixedly mounted relative to a rotational axis (Rot). The stator (1a, 1b) comprises a stator yoke (2) that extends in the axial (A) and radial (R) directions. Stator teeth (3), facing toward the rotational axis (Rot), are arranged in a ring shape on the stator yoke (2). The teeth are uniformly spaced apart from one another so that a stator groove (14) is formed therebetween. The stator (1a, 1b) is divided into a first stator section (5) and a second stator section (6). First and second outer walls (9, 10) are provided on the stator yoke (2) and serve to axially support the stator yoke (2). A cooling manifold disk (11) is integrated between the first stator section (5) and the second stator section (6). An electric machine with a stator of that type is also disclosed.

Abstract: A device (1) for cooling and lubricating components of a vehicle (2) may include a housing (3), a coolant sump (4), a coolant pump (5) for pumping coolant (6) from the coolant sump (4), a heat exchanger (7) for cooling coolant (6) from the coolant pump (5), and a coolant line system (8) including a coolant reservoir (9) having a single coolant inlet (10) and multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5). The coolant line system (8) fluidically connects the coolant pump (5) to the heat exchanger (7), and the heat exchanger (7) to the single coolant inlet (10) of the coolant reservoir (9). The coolant reservoir (9) receives coolant (6) from the heat exchanger (7) via the single coolant inlet (10) and directs coolant (6) via the multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5) onto components in the housing (3) requiring cooling and lubrication.

Abstract: A rotor (2) for an electric machine (1) includes a rotor shaft (3) having at least one cooling duct (4), through which a coolant is flowable, and a laminated core (5) arranged on the rotor shaft (3). The laminated core (5) is arranged axially between a first end plate (6) and a second end plate (7) arranged on the rotor shaft (3). The laminated core (5) includes multiple axial ducts (8) for guiding the coolant through the rotor (2). The axial ducts (8) are fluidically connected to at least one distribution duct (9) in the particular end plate (6, 7) for the inflow of the coolant. The axial ducts (8) are fluidically connected to at least one return duct (16) in the particular other end plate (7, 6) for the outflow of the coolant. The at least one distribution duct (9) in the particular end plate (6, 7) is fluidically connected to the at least one cooling duct (4) at the rotor shaft (3).

Abstract: A stator (2) for an electric machine (1) includes a laminated core (3) arranged axially between a first end plate (4) and a second end plate (5). A cooling line (6) for introducing a coolant into at least one distribution duct (7) at the particular end plate (4, 5) is arranged outside the end plates (4, 5) and the stator (2) and is fluidically connected to the at least one distribution duct (7) in the particular end plate (4, 5). The laminated core (3) includes multiple axial ducts (8) for guiding the coolant through the stator (2). The axial ducts (8) are fluidically connected to the at least one distribution duct (7) in the particular end plate (4, 5) for the inflow of the coolant. An outflow for the coolant is formed by at least one end-face opening (9) in the particular end plate (4, 5). The at least one opening (9) is configured for spraying the coolant out of the axial ducts (8) onto winding overhangs (10) of the stator (2).

Abstract: An electric machine (1) includes a multi-piece housing (2), a stator (4) stationarily accommodated at the housing (2) by a plastic body (3), and a rotor (5) arranged radially within the stator (4). The plastic body (3) is electrically insulating and surrounds at least one electrical line (17a, 17b, 17c) configured for conducting an electric current between a power electronics unit of the electric machine (1) and the stator (4). At least one channel (8), which is configured for accommodating a coolant, is formed in the plastic body (3). A flange-shaped section (3a) of the plastic body (3) is formed axially between a first housing cover (2a) and a housing shell section (2c) of the multiple-piece housing (2). The at least one electrical line (17a, 17b, 17c) and the at least one channel (8) are formed in the flange-shaped section (3a).

Abstract: A device (1) for cooling and lubricating components of a vehicle (2) may include a housing (3), a coolant sump (4), a coolant pump (5) for pumping coolant (6) from the coolant sump (4), a heat exchanger (7) for cooling coolant (6) from the coolant pump (5), and a coolant line system (8) including a coolant reservoir (9) having a single coolant inlet (10) and multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5). The coolant line system (8) fluidically connects the coolant pump (5) to the heat exchanger (7), and the heat exchanger (7) to the single coolant inlet (10) of the coolant reservoir (9). The coolant reservoir (9) receives coolant (6) from the heat exchanger (7) via the single coolant inlet (10) and directs coolant (6) via the multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5) onto components in the housing (3) requiring cooling and lubrication.

Abstract: The invention relates to a stator (1a, 1b) for an electric machine, wherein the stator (1a, 1b) is mounted rotatably around a rotation axis (Rot) by which an axial direction (A) is defined, wherein the stator (1a, 1b) comprises a stator yoke (2) that extends in the axial direction (A) and in a radial direction (R) relative thereto, wherein on the stator yoke (2), along the axial direction (A) stator teeth (3) facing toward the rotation axis (Rot) are arranged in a ring shape, which teeth are uniformly spaced apart from one another in the circumferential direction (U), so that a stator groove (14) is formed between radially adjacent stator teeth (3), and wherein the stator (1a, 1b) is divided axially in the middle into a first stator section (5) and a second stator section (6), wherein on the stator yoke (2), at the end on the first stator section (5) a first outer wall (9) that extends radially and, opposite it, at the end a radially extending second outer wall (10) are provided, each serving as axial suppor

Abstract: A cooling arrangement (1) for cooling a stator (2) for an electric machine (23). The cooling arrangement (1) comprising a stator (2) fixedly mounted relative to a rotational axis (Rot). The stator (2) comprises a stator yoke (3) and stator grooves (4). Windings are provided in the stator grooves (4), which form first and second winding heads (5, 6). First and second fluid rings (8, 14) are provided at opposite ends on the stator yoke (3). The first fluid ring (8) has a fluid inflow opening from a stator housing (7). The stator yoke (3) has a plurality of axial stator ducts (15, 18, 22) extending in the axial direction (A), which enable the inflowing fluid to flow through from the first fluid ring (8) to the second fluid ring (14), and the second fluid ring (14) redirects some of the fluid. Furthermore, the invention relates to an electric machine.

Abstract: A rotor (1) for an electric machine (25) which comprises a rotor support (2). The rotor support has cylindrical inner and outer shells (3, 4). A magnetic flux-carrying rotor component has first and second end faces (6, 7) and carries the cylindrical outer shell (4). A rotationally shaft section (8) is arranged in an inside space (9) of the rotor support and mounted coaxially with the rotor support. At least in the area of the first end face (6) the outer shell has first teeth which face toward the magnetic flux-carrying rotor component and a first tooth base between respective pairs of first teeth, and at least in the area of the second end face (7) the outer shell (4) has second teeth which face toward the magnetic flux-carrying rotor component and a second tooth base between respective pairs of second teeth. The invention also relates to an electric machine.

Abstract: An electric machine (1) may include a multi-piece housing (2) including a first housing end-face section (2a), a second housing end-face section (2b), and a housing shell section (2c) axially between the first and second housing end-face sections (2a, 2b). The electric machine (1) may further include a stator (4) fixed relative to the housing (2) proximate at least one of the first and second housing end-face sections (2a, 2b). Additionally, the electric machine (1) may include a rotor (5) radially within the stator (4). At least one of the first and second housing end-face sections (2a, 2b) has at least one axial ridge (14a) protruding axially into the stator (4) and rotationally fixed to an inner circumferential surface (15) of the stator (4) to support torque of the stator (4).

Abstract: An electric machine includes a housing, a stator, a rotor arranged radially within the stator, and a plastic body fixing the stator relative to the housing. The plastic body is electrically insulating. Further, the plastic body radially surrounds an outside of at least one soft magnetic core of the stator and first and second winding overhangs of the stator, and axially surrounds an end face of the first winding overhangs and an end face of the second winding overhangs. Additionally, the plastic body defines at least one channel for accommodating a coolant, the at least one channel having a first portion extending circumferentially along at least 40% of the end face of the first winding overhangs, a second portion extending along an outer circumferential surface of the stator, and a third portion extending circumferentially along at least 40% of the end face of the second winding overhangs.