Abstract: Stator housing for an electrical machine having an inlet and outlet for a cooling fluid, and a cooling duct formed between the inlet and the outlet through which the cooling fluid flows in a direction from the inlet to the outlet, is disclosed. The cooling duct has a first and a second heat transfer arrangement, which each extend along the direction of flow and are designed to transfer heat from the cooling fluid to the stator housing. The first heat transfer arrangement is arranged in a first section of the cooling duct and the second is arranged in a second section that is on the inlet side with respect to the first section. The first heat transfer arrangement in the first section creates a larger heat transfer area for the cooling fluid per unit of length based on the direction of flow than the second in the second section.

Abstract: The invention relates to a stator device (2) for an electric machine (1), comprising —a stator body (3), —a plurality of cooling channels (9a-9x) that are designed to cool the stator body (3) and extend along the stator body (3) in an axial direction, and —a cooling fluid connection device (7) that delimits a connection channel (12) axially outwards and in a radial manner, said connection channel extending in the circumferential direction, wherein the axial end of each cooling channel opens into the connection channel, and the connection channel extends radially inwards further than the cooling channels (9a-9x).

Abstract: A cooling ring unit having a hollow circular shape, configured to be integrated in an electric rotating machine includes a housing and at least one electrical component. The cooling ring unit includes at least one inlet, a plurality of outlets, and an annular body having a concave transverse section adapted to form an enclosed substantially annular volume with the housing of the electric rotating machine. The enclosed substantially annular volume forms a cooling circuit connecting the at least one inlet and the plurality of outlets. The enclosed substantially annular volume is configured to channel a coolant, the plurality of outlets being formed throughout said annular body, and the cooling ring unit being configured to project the coolant through the plurality of outlets in order to cool the at least one electrical component.

Abstract: Stator housing for an electrical machine having an inlet and outlet for a cooling fluid, and a cooling duct formed between the inlet and the outlet through which the cooling fluid flows in a direction from the inlet to the outlet, is disclosed. The cooling duct has a first and a second heat transfer arrangement, which each extend along the direction of flow and are designed to transfer heat from the cooling fluid to the stator housing. The first heat transfer arrangement is arranged in a first section of the cooling duct and the second is arranged in a second section that is on the inlet side with respect to the first section. The first heat transfer arrangement in the first section creates a larger heat transfer area for the cooling fluid per unit of length based on the direction of flow than the second in the second section.

Abstract: A guide device (1) for a cooling fluid flowing around winding heads (28) of an electrical machine (21), including a body (2), with a recess (4) delimited by an inner edge (3) for guiding through a shaft of the electrical machine (21), and a guide element (5), which protrudes from the body (2) in the axial direction and extends in the peripheral direction in a radial position lying between the inner edge (3) and an outer edge (6) of the body (2).

Abstract: A stator housing for an electric machine, includes a cooling channel through which a cooling fluid may flow and which has a plurality of main portions extending in the axial direction or in the circumferential direction, wherein adjacent main portions are connected by deflection portions of the cooling channel in such a way that a meandering cooling path is formed, wherein a guide element is formed within each of the deflection portions and separates the cooling path into two cooling sub-paths.

Abstract: Stator housing for an electric machine, includes a plurality of axially extending main channels, wherein pairs of adjacent main channels are connected by deflection channels to form a meandering cooling path for a coolant, and a plurality of connection channels that connect each pair of adjacent main channels in a fluid conductive manner at an axial position between the deflection channels.

Abstract: The invention relates to a stator device (2) for an electric machine (1), comprising—a stator body (3), —a plurality of cooling channels (9a-9x) that are designed to cool the stator body (3) and extend along the stator body (3) in an axial direction, and —re) a cooling fluid connection device (7) that delimits a connection channel (12) axially outwards and in a radial manner, said connection Cie channel extending in the circumferential direction, wherein the axial end of each cooling channel opens into the connection channel, Got and the connection channel extends radially inwards further than the cooling channels (9a-9x).

Abstract: A rotor assembly for an electric machine includes a rotor core, a plurality of permanent magnets, which are arranged within a magnet pocket each, formed in the rotor core, with a clearance extending in the axial direction, and a shaft connected to the rotor core for conjoint rotation. A cooling channel arrangement is formed within the rotor assembly, and includes a first cooling channel extending within the shaft, a second cooling channel fluidically connected to the first cooling channel and extending in the radial direction along an end face of the rotor core, and a third cooling channel, which, adjoining the second cooling channel, extends in the axial direction through the clearances in the magnet pockets. The arrangement further includes a separation element, which separates an interior of the shaft into a first shaft portion, in which the first cooling channel extends, and into a second shaft portion.

Abstract: A rotor assembly for an electric machine, including a rotor core and a shaft, is connected to the rotor core for conjoint rotation, wherein a cooling channel arrangement is formed within the rotor assembly and includes a cooling channel, which extends within the shaft. The rotor assembly further includes a separation element which has a separation portion extending in the circumferential direction at an inner radius of the shaft, wherein the separation portion separates an interior of the shaft into a first shaft portion, in which the cooling channel extends, and into a second shaft portion, wherein the separation element includes a sealing device, which seals off the shaft portions with respect to one another.

Abstract: An end plate for a rotor assembly of an electrical machine includes a central through-opening for a shaft, a collar formed on an end face of the end plate on the radial outside in the circumferential direction and a plurality of elevations on the end face. The elevations and collar axially delimit a cooling channel, wherein the cooling channel forms a plurality of cooling channel sections on both sides by a respective elevation. Two elevations delimiting a cooling channel section are spaced apart from one another by a first arc length at a first radial position between the through-opening and the collar and are spaced apart from one another by a second arc length greater than the first arc length at a second radial position delimited by the collar. Each cooling channel section includes at least one fluid guide element between the first radial position and the second radial position.

Abstract: Stator housing for an electric machine, including an outer housing element and an inner housing element which is arranged inside the outer housing element. A cavity formed in the inner housing element and/or in the outer housing element forms a cooling channel between an inlet of the stator housing and an outlet of the stator housing for a cooling fluid. A gap between the housing elements which has a smaller radial extension than the cooling channel forms a fluid-conducting connection between the inlet and the outlet. The gap extends in the circumferential direction along a radial protrusion of a first housing element of the housing elements, which radial protrusion engages in a recess in a second housing element of the housing elements.

Abstract: A stator housing for an electric machine, includes a cooling channel through which a cooling fluid may flow and which has a plurality of main portions extending in the axial direction or in the circumferential direction, wherein adjacent main portions are connected by deflection portions of the cooling channel in such a way that a meandering cooling path is formed, wherein a guide element is formed within each of the deflection portions and separates the cooling path into two cooling sub-paths.

Abstract: A guide device (1) for a cooling fluid flowing around winding heads (28) of an electrical machine (21), including a body (2), with a recess (4) delimited by an inner edge (3) for guiding through a shaft of the electrical machine (21), and a guide element (5), which protrudes from the body (2) in the axial direction and extends in the peripheral direction in a radial position lying between the inner edge (3) and an outer edge (6) of the body (2).

Abstract: Stator housing for an electric machine, includes a plurality of axially extending main channels, wherein pairs of adjacent main channels are connected by deflection channels to form a meandering cooling path for a coolant, and a plurality of connection channels that connect each pair of adjacent main channels in a fluid conductive manner at an axial position between the deflection channels.

Abstract: A rotor assembly for an electric machine includes a rotor core, a plurality of permanent magnets, which are arranged within a magnet pocket each, formed in the rotor core, with a clearance extending in the axial direction, and a shaft connected to the rotor core for conjoint rotation. A cooling channel arrangement is formed within the rotor assembly, and includes a first cooling channel extending within the shaft, a second cooling channel fluidically connected to the first cooling channel and extending in the radial direction along an end face of the rotor core, and a third cooling channel, which, adjoining the second cooling channel, extends in the axial direction through the clearances in the magnet pockets. The arrangement further includes a separation element, which separates an interior of the shaft into a first shaft portion, in which the first cooling channel extends, and into a second shaft portion.

Abstract: An end plate for a rotor assembly of an electrical machine includes a central through-opening for a shaft, a collar formed on an end face of the end plate on the radial outside in the circumferential direction and a plurality of elevations on the end face. The elevations and collar axially delimit a cooling channel, wherein the cooling channel forms a plurality of cooling channel sections on both sides by a respective elevation. Two elevations delimiting a cooling channel section are spaced apart from one another by a first arc length at a first radial position between the through-opening and the collar and are spaced apart from one another by a second arc length greater than the first arc length at a second radial position delimited by the collar. Each cooling channel section includes at least one fluid guide element between the first radial position and the second radial position.

Abstract: A rotor assembly for an electric machine, including a rotor core and a shaft, is connected to the rotor core for conjoint rotation, wherein a cooling channel arrangement is formed within the rotor assembly and includes a cooling channel, which extends within the shaft. The rotor assembly further includes a separation element which has a separation portion extending in the circumferential direction at an inner radius of the shaft, wherein the separation portion separates an interior of the shaft into a first shaft portion, in which the cooling channel extends, and into a second shaft portion, wherein the separation element includes a sealing device, which seals off the shaft portions with respect to one another.