Abstract: A method for producing a rotor includes providing lamella elements and arranging the lamella elements to form a lamella bundle where the lamella bundle has webs. End plates are arranged at respective end faces of the lamella bundle where the end plates axially support the lamella bundle. The lamella bundle is axially fixed or pretensioned by winding conductor material around the webs and a rotor shaft is arranged in the fixed or pretensioned lamella bundle.

Abstract: The invention relates to a cooling device (1) for cooling electronic components (2), comprising: a bottom plate (3);—a top plate (4) which is a deep-drawn component having a recess (40), the bottom plate (3) and top plate (4) being disposed in such a way that the recess (40) forms a cooling channel (5) between the bottom plate (3) and the top plate (4), the cooling channel (5) extending in a longitudinal direction (11) from an inlet opening (51) to an outlet opening (52), wherein a cooling fluid flow of a cooling fluid can flow through the cooling channel (5) in the longitudinal direction (10);—at least one turbulator (6) which is disposed within a turbulator portion (56) of the cooling channel (5); and—at least one blocking element (20) which is disposed, with respect to the longitudinal direction (11) of the cooling channel (5), next to the turbulator (6) in a bypass region (55) of the cooling channel (5) between the turbulator (6), the top plate (4) and the bottom plate (3), for at least partially blocking

Abstract: The present invention relates to a cooling fin (1) of a cooler (100), through which fluid can flow, for cooling power electronics (200). The cooling fin (1) comprises a profile (10) periodically repeating in a repeating direction (501), wherein the repeating direction (501) is perpendicular to an extending direction (500) of the profile (10). The invention also relates to a cooler (100), through which fluid can flow, for cooling power electronics (200), said cooler comprising a cooling fin (1) of said type, and to a power electronics assembly (1000), comprising power electronics (200) and a cooler (100) of said type, through which fluid can flow.

Abstract: The invention relates to a housing (2) for installing the power electronics (101) and a cooling rib assembly (7) with a plurality of ribs (9) in a cooling channel (6) of the housing (2), wherein fluid can flow through the cooling rib assembly (7) along a longitudinal axis (30), wherein the cooling rib assembly (7) comprises at least one strong cooling region (20) with a first flow resistance for the fluid and at least one weak cooling region (21) with a second flow resistance for the fluid, wherein the first flow resistance is greater than the second flow resistance.

Abstract: The present invention relates to a cooling fin arrangement (1) of a cooler, through which fluid can flow, for cooling power electronics (200). The cooling fin arrangement (1) comprises at least one cooling fin (10), which is formed from a wave profile that periodically repeats in a direction of repetition (501), the direction of repetition (501) being perpendicular to a flow direction (500). The invention also relates to a cooler, through which fluid can flow, for cooling power electronics (200), the cooler comprising a cooling fin arrangement (1) of this type, and to a power electronic assembly (1000), comprising power electronics (200) and a cooler (100) of this type, through which fluid can flow.

Abstract: The present invention relates to a cooler (1) for cooling power electronics (101), comprising a housing (2) for accommodating the power electronics (101) and a cooling fin arrangement (7) with a large number of fins (9) in a cooling channel (6) of the housing (2), wherein fluid can flow through the cooling fin arrangement (7) along a longitudinal axis (30); the cooling fin arrangement (7) comprises a plurality of cooling fin sections (71, 72, 73); adjacent cooling fin sections have different fin geometries (9); and the cooling fin sections (71, 72, 72) are fixedly connected to one another.

Abstract: A tool accessory packaging for at least one tool accessory, in particular a drill bit, includes a packaging base body which forms a receiving pocket, in particular a folded pocket, for receiving the tool accessory and which is intended for receiving tool accessories with different geometries in the receiving pocket. The receiving pocket adapts to a geometry of the tool accessory, at least in sections, due to its material-specific restoring force when the tool accessory is arranged in the receiving pocket and fixes the tool accessory in a receiving region, in particular in a non-slip manner.

Abstract: The invention relates to a rotor, in particular for a current-excited synchronous machine, comprising a rotor main body which has a plurality of rotor teeth distributed around the circumference and rotor slots formed therebetween, the rotor teeth being wound, along the rotor slots and on the front side, with conductor material in order to form a winding, the conductor material, for mechanical stabilization, being surrounded by a potting compound, thereby forming a potting body, the potting body having segments on the front sides in extension of the rotor slots, and in at least one of the segments the material cohesion of the potting compound is selectively weakened or eliminated at least in regions or portions.

Abstract: A coil has a winding that is coated with an epoxy resin in at least some areas, wherein a ratio of a compressive strength of the epoxy resin to the tensile strength thereof at room temperature ranges between 2 and 5, the modulus of elasticity at room temperature is at least 5000 MPa, and at a glass transition temperature of the epoxy resin, the modulus of elasticity and the tensile strength have values amounting to at least 30% of the values at room temperature.

Abstract: An electric machine has a stator, a rotor, and a slip ring module which is connected to a motor shaft of the electric machine. The slip ring module is equipped with at least one wire guiding channel, through which a respective contact wire is guided in order to electrically connect a rotor winding to a slip ring. A first section of the wire guiding channel runs from the slip ring in the axial direction parallel to the motor shaft. A second section of the wire guiding channel runs adjacently thereto radially outwards. An elastic seal element which surrounds the respective contact wire is arranged in or on the second section in order to seal the wire guiding channel to prevent a lubricant from entering the channel.

Abstract: A method for producing a rotor includes providing lamella elements and arranging the lamella elements to form a lamella bundle where the lamella bundle has webs. End plates are arranged at respective end faces of the lamella bundle where the end plates axially support the lamella bundle. The lamella bundle is axially fixed or pretensioned by winding conductor material around the webs and a rotor shaft is arranged in the fixed or pretensioned lamella bundle.

Abstract: A hollow-shaft arrangement for a motor vehicle includes an inner hollow shaft and an outer hollow shaft. An inner shaft shoulder of the outer hollow shaft is arranged behind the inner toothing in an axial direction as viewed from the inflow end of the inner hollow shaft, the inner diameter (D1) of which shaft shoulder is smaller than a root-circle diameter (D2) of the inner toothing, so that, when the hollow shafts rotate, the fluid exiting from the outflow end of the inner hollow shaft at least partially is backed up by the shaft shoulder in a tooth root region of the inner toothing and flows back in the direction of the inflow end of the inner hollow shaft within the splice toothing.

Abstract: A disc tool for a processing machine for grinding and/or polishing a workpiece (W); wherein the disc tool (10A, 10B, 10B) has a carrier (20) for attachment to an output (85) of the processing machine (80); wherein a cushion element (40A, 40B, 40C) made of elastic material and a retaining wall element (41A, 41B, 41C, 41D) for retaining the cushion element (40A, 40B, 40C, 61) are arranged on the carrier (20); wherein the retaining wall element (41A, 41B, 41C, 41D) is held on the carrier (20) by means of retaining bolts (35); wherein retaining bolt passage openings (48) of the retaining wall element (41A, 41B, 41C, 41D) extending through retaining mounts (28), of the carrier (20) are accommodated along bolt sections (36) of the retaining bolts (35) extending along the bolt longitudinal axes (BL), and the retaining wall element (41A, 41B, 41C, 41D) is held between bolt heads (37) of the retaining bolts (35) and the carrier (20); and wherein an adhesive layer (50) is arranged on a side of the retaining wall elemen

Abstract: An electric machine has a stator, a rotor, and a slip ring module which is connected to a motor shaft of the electric machine. The slip ring module is equipped with at least one wire guiding channel, through which a respective contact wire is guided in order to electrically connect a rotor winding to a slip ring. A first section of the wire guiding channel runs from the slip ring in the axial direction parallel to the motor shaft. A second section of the wire guiding channel runs adjacently thereto radially outwards. An elastic seal element which surrounds the respective contact wire is arranged in or on the second section in order to seal the wire guiding channel to prevent a lubricant from entering the channel.

Abstract: The present invention relates to a method for characterizing a coating, in which method a mass and/or a volume of a basic body is/are measured prior to coating; a mass and a volume of the basic body with the applied coating are measured; for characterizing the coating, a density of the coating is determined from the volume and mass measurements; wherein the volume is optically measured.

Abstract: A rotor for an electrical machine has at least one groove, the at least one groove includes a groove bottom and groove walls. A separating element is provided between the groove walls, and extends along the groove. The separating element is arranged on the groove bottom, at least in sections, such that groove chambers are formed along the groove.

Abstract: A formulation for injection moulding of a pharmaceutical carrier comprising 27-85% (w/w) of polyvinyl alcohol, and 10-60% (w/w) of a disintegration aid selected from maize starch, wheat starch, and combinations thereof; and optionally one or more excipients.

Abstract: A rotor for an electrical machine has at least one groove, the at least one groove includes a groove bottom and groove walls. A separating element is provided between the groove walls, and extends along the groove. The separating element is arranged on the groove bottom, at least in sections, such that groove chambers are formed along the groove.

Abstract: A coil has a winding that is coated with an epoxy resin in at least some areas, wherein a ratio of a compressive strength of the epoxy resin to the tensile strength thereof at room temperature ranges between 2 and 5, the modulus of elasticity at room temperature is at least 5000 MPa, and at a glass transition temperature of the epoxy resin, the modulus of elasticity and the tensile strength have values amounting to at least 30% of the values at room temperature.