Abstract: An electric machine for a drivetrain of a motor vehicle may comprise: a rotor with a rotor laminated core; a stator with winding heads on opposite end faces; and a housing with a a cooling liquid reservoir. The rotor core comprises multiple stacked laminations each with an aperture connecting the end faces to one another. The apertures of adjacent laminations are offset in a circumferential direction so: a first helical cooling channel connects an inner region of the core to a first end face; a second helical cooling channel connects the inner region of the core to a second end face; and the first cooling channel and the second cooling channel are oriented oppositely with respect to one another and are connected via a passage within the rotor laminated core to a feed line conducting the cooling liquid within the rotor shaft.

Abstract: An electric machine for a drivetrain of a motor vehicle may comprise: a rotor with a rotor laminated core; a stator with winding heads on opposite end faces; and a housing with a a cooling liquid reservoir. The rotor core comprises multiple stacked laminations each with an aperture connecting the end faces to one another. The apertures of adjacent laminations are offset in a circumferential direction so: a first helical cooling channel connects an inner region of the core to a first end face; a second helical cooling channel connects the inner region of the core to a second end face; and the first cooling channel and the second cooling channel are oriented oppositely with respect to one another and are connected via a passage within the rotor laminated core to a feed line conducting the cooling liquid within the rotor shaft.

Abstract: The invention discloses an unenclosed electrical machine (EM), comprising: —a stator (ST), within which there is a cavity (HR); —an insulating sheath (IU), which seals off an outer circumferential surface (UF) and at least one side face (SF1) of the stator (ST) in a media-tight manner; —at least one end shield (LS1, LS2), which is arranged on the side face (SF1) of the stator (ST) and delimits the cavity (HR) on one side; —at least one sealing arrangement (DA), which is arranged between the insulating sheath (IU) and the at least one end shield (LS1, LS2), and seals off the cavity (HR) from the surroundings in a media-tight manner.

Abstract: The invention relates to a battery holder (1) for galvanic cells, in which a first honeycomb structure (2.1 to 2.n), comprising a lower and an upper basic cooling body (3.1, 3.2) and at least one intermediate cooling body (4), is provided, wherein in each case, galvanic cells can be arranged on a cell level (5.1 to 5.n) in each case between one of the basic cooling bodies (3.1, 3.2) and one of the intermediate cooling bodies (4) and/or between two of the intermediate cooling bodies (4), wherein the galvanic cells of one of the cell levels (5.1 to 5.n) are displaced to the side to the galvanic cells of at least one adjacent cell level (5.1 to 5.n) by half the width of a galvanic cell, and wherein the intermediate cooling body (4) and the basic cooling bodies (3.1, 3.2) are formed in an area between the galvanic cells according to the outer contours of the galvanic cells, and wherein each of the cooling bodies (3.1, 3.

Abstract: The invention relates to a battery holder (1) for galvanic cells, in which a first honey-comb structure (2.1 to 2.n), comprising a lower and an upper basic cooling body (3.1, 3.2) and at least one intermediate cooling body (4), is provided, wherein in each case, galvanic cells can be arranged on a cell level (5.1 to 5.n) in each case between one of the basic cooling bodies (3.1, 3.2) and one of the intermediate cooling bodies (4) and/or between two of the intermediate cooling bodies (4), wherein the galvanic cells of one of the cell levels (5.1 to 5.n) are displaced to the side to the galvanic cells of at least one adjacent cell level (5.1 to 5.n) by half the width of a galvanic cell, and wherein the intermediate cooling body (4) and the basic cooling bodies (3.1, 3.2) are formed in an area between the galvanic cells according to the outer contours of the galvanic cells, and wherein each of the cooling bodies (3.1, 3.