Abstract: The invention relates to a DC link capacitor module (1, 1?), in which a coil (4, 5) is electrically conductively attached to two mutually opposite electrode plates (2a, 2b), wherein a plurality of first connecting means (6) are provided on each electrode plate (2a, 2b) to produce a detachable or non-detachable plug-in connection to second connecting means (9a, 9b), which correspond thereto and are attached to a bus bar (7a, 7b) of a power electronics module (8).

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 control device (8) for an inverter (2) that feeds an electric machine (3), wherein the control device (8) is configured to provide pulse-width-modulated switching signals (15) at a carrier frequency to drive switching elements (12) of the inverter (2), wherein the control device (8) is configured to ascertain the carrier frequency within at least one operating range (22, 23) depending on a piece of operating point information that describes an operating point defined by a rotation speed and a torque of the electric machine (3) in such a way that the carrier frequency is reduced within the at least one operating range (22, 23) compared to a maximum carrier frequency operating point at which a maximum carrier frequency is specified in the operating range.

Abstract: Described is a rotor (3) for an electrical machine (1) which comprises a rotor laminated core (6) divided into a plurality of sectors (B), in each of which there is arranged a permanent magnet assembly (4) which has two permanent magnets (13a, 13n) which are arranged in a V shape and which are positioned symmetrically with respect to a plane of symmetry (C) splitting the sector (B) into two half-sectors (D, D?). An outer contour (E) of the rotor laminated core (6) runs in each sector (B) symmetrically with respect to the plane of symmetry (C) and is formed in one half-sector (D, D?) by at least three different radii with just as many different centre points. The invention also relates to an electric machine (1) having such a rotor (3) and to a vehicle (17) having such an electric machine (1).

Abstract: A device discharges an intermediate circuit capacitor. The device includes a power converter for supplying electricity to an electrical machine powering a vehicle, having the intermediate circuit capacitor and a discharge device with a series circuit of a controllable switching element and a load resistor, and a high-voltage battery feeding the power converter on the input side. The power converter has a control equipment to control the switching element, depending on a signal state at an input of the control equipment, to perform a fixed predefined number of switching operations, in which the switching element conducts, with a fixed predefined duration and a fixed predefined delay between two successive switching operations. The load resistor and its heat transfer to the power converter are set so that the load resistor is not damaged if a maximum constant voltage of the high-voltage battery is applied during a respective switching operation.

Abstract: A rotor for an electrical machine, comprising: a rotor stack with a plurality of pole teeth and windings around the pole teeth, a plurality of groove wedges, which are arranged radially above the windings, in grooves between the pole teeth, characterised in that a support element is arranged in the grooves between the windings and radially between the groove wedges and the rotor stack.

Abstract: The invention specifies an electrical machine (1, 1a . . . 1c) which comprises a housing (8), a stator (5) which is arranged in the housing (8) and a rotor (3) which is rotatably mounted in the housing (8). At least one first coolant duct (9) of a first cooling circuit (15) and at least one second coolant duct (10, 10a, 10b) of a second cooling circuit (16) are arranged in the region of the stator (5) in the housing (8). In this case, the coolant ducts (9, 10, 10a, 10b) and the housing (8) form a heat exchanger between the first cooling circuit (15) and the second cooling circuit (16). In addition, the invention specifies a gear motor comprising the electrical machine (1, 1a . . . 1c), in which gear motor the transmission is hydraulically connected to the at least one second coolant duct (10, 10a, 10b) of the second cooling circuit (16). The invention also specifies a vehicle (27) which is driven by the said electrical machine (1, 1a . . . 1c) or by the said gear motor.

Abstract: A temperature detection unit for a stator of an electric motor, includes a plate, a support element, at least two feet, and at least two temperature sensors, wherein the temperature sensors are arranged one on each of the feet.

Abstract: Parking lock (1, 19, 24) for a motor vehicle, having a movable locking means for impinging a parking lock wheel (14), disposed in the interior of a transmission housing (2), with a holding force, wherein the movable locking means, by means of a shifting shaft (3) that is rotatable by a drive motor (4) and a cam (7) that is coupled to the shifting shaft (3) is pivotable between a releasing state, in which the parking lock wheel (14) is rotatable, and a blocked state, in which a rotation of the parking lock wheel (14) is blocked, wherein the drive motor (4) is disposed outside the transmission housing (2), the shifting shaft (3) penetrates the transmission housing (2), and the cam (7) is disposed within the transmission housing (2). The invention moreover relates to a transmission having a parking lock (1, 19, 24) of this type, and to a drive installation for electrically drivable motor vehicle.

Abstract: An inverter having input terminals, output terminals, a DC link capacitor connected to the input terminals and configured to smooth a DC voltage present at the input terminals is disclosed. Controllable switches are connected to the DC link capacitor and to the output terminals, and a control device is also provided. The control device controls the controllable switches such that the controllable switches convert the DC voltage into an AC voltage at the output terminals. The controllable switches are controlled according to a first switching control scheme including a first modulation technique and a first switching frequency, and according to a second switching control scheme in response to a temperature of the DC link capacitor, the second switching control scheme causing less losses in the DC link capacitor than the first switching control scheme.

Abstract: Described is an electrical machine (1, 1a) which comprises a first end shield (6, 6a) and a second end shield (7, 7a), a stator (5) which is arranged between the two end shields (6, 6a, 7, 7a) and has a stator laminated core (10) and stator windings (11) arranged therein, and a rotor (3) which is arranged in the stator (5) and has a rotor shaft (2, 2a) mounted rotatably in the two end shields (6, 6a, 7, 7a). The electrical machine (1, 1a) furthermore comprises a stator casing (8, 8a) which is arranged circumferentially around the stator (5) and which is mounted on the two end shields (6, 6a, 7, 7a) and which is spaced apart from the stator (5) at all points. Also specified is a vehicle (15) having an electrical machine (1, 1a) of said type.

Abstract: Specified is a rotor (2, 2a, 2b) for an electric machine (1), said rotor (2, 2a, 2b) comprising a rotor shaft (3); a laminated rotor core (4) which by way of an interference fit sits on the rotor shaft (3); a first rotor holder (6, 6a, 6b) which on the rotor shaft (3), so as to be adjacent to the laminated rotor core (4), is assembled on a first side of the latter with the aid of an interference fit; and/or a second rotor holder (7, 7a, 7b) which on the rotor shaft (3), so as to be adjacent to the laminated rotor core (4), is assembled on a second, opposite side of the latter with the aid of an interference fit. Moreover specified are an electric machine (1) having such a rotor (2, 2a, 2b) and a vehicle (22) having such an electric machine (1).

Abstract: A method for producing a stator/housing arrangement for an electrical machine (1) having a stator (5) and a housing (2), wherein a housing part (3, 3a . . . 3c) of the housing (2) has at least one circumferential housing slot (4, 4a . . . 4c) and a stator laminated core (6, 6a . . . 6c) of the stator (5) has at least one circumferential stator slot (9, 9a . . . 9c). Here, the stator laminated core (6, 6a . . . 6c) is placed or pressed into the housing part (3, 3a . . . 3c) in a position in which the stator slot (9, 9a . . . 9c) and the housing slot (4, 4a . . . 4c) have a region of intersection (B). Afterwards, a potting compound (15) is introduced into the stator slot (9, 9a . . . 9c) and the housing slot (4, 4a . . . 4c). Furthermore, the invention specifies an electrical machine (1) with a stator/housing arrangement having the properties specified above, and a vehicle (19) with such an electrical machine (1).

Abstract: The inverter (110) comprises input terminals (IT+, IT?), output terminals (OT), controllable switches (Q, Q?) connected to the input terminals (IT+, IT?) and to the output terminals (OT) and a control device (116) configured to control the controllable switches (Q, Q?) so as to convert a DC voltage at the input terminals (IT+, IT?) into an AC voltage at the output terminals (OT) intended to drive an asynchronous electric motor (108) to achieve a target torque (T*), selectively: in a first mode of operation in which the target torque (T*) is determined according to a torque determination method, and in response to a rotor temperature (Tr), in a second mode of operation in which losses in the rotor are decreased relative to the first mode of operation while the target torque (T*) remains determined according to the torque determination method of the first mode of operation.

Abstract: The invention concerns a stator of an electric rotating machine, the stator comprising a housing, a stator core (1), windings, and a distribution ring (2), the stator core (1) having inner and outer (11) longitudinal grooves, the outer longitudinal grooves (11) and the housing forming axial cooling channels configured to channel a coolant; the windings being located within the inner longitudinal grooves and forming at each end of the stator core (1) protruding windings ends, the distribution ring (2) being contiguous to the stator core (1) and comprising recesses (21) extending the outer longitudinal grooves (11), the recesses (21) being configured to guide the coolant from the outer longitudinal grooves (11) towards the protruding windings ends, such that the coolant flows over the protruding windings ends under the effect of gravity and/or due to the pressure of the coolant to cool the protruding windings ends.

Abstract: A power module for an inverter is disclosed. The power module has a base plate with a first base plate side and a second, opposite base plate side, controllable electronic switches arranged on the first base plate side, inputs and outputs, which are electrically connected to the electronic switches. The power module is designed to convert an input voltage applied to the inputs to an output voltage applied to the outputs by the electronic switches. The power module also includes a plurality of cooling devices attached to the second base plate side. The cooling devices each have loops arranged one behind the other. The loops of a first group of cooling devices are inclined with respect to the loops of a second group of cooling devices, and/or the loops of each group of cooling devices protrude from the second base plate side to different distances.

Abstract: The electrical system comprises a cover (206) for closing the compartment (204) defined in a housing (202). The electrical system further comprises a removable element (214) configured to be mounted proximate to the housing (202), and a mobile hook (208) attached to one amongst the cover (206) and the housing (202), and configured to take an engaged position with the other amongst the cover (206) and the housing (202) and a disengaged position from the other from the cover (206) and the housing (202), wherein the removable element (214), when mounted proximate to the housing (202), is configured to cooperate with the mobile hook (208) to prevent the cover (206) from being separated from the housing (202), thereby preventing an opening of the compartment (204).

Abstract: Described is an electrical machine (1) which comprises two end shields (6, 7), a stator (5) which is arranged between the two end shields (6, 7) and has a stator laminated core (11, 11a) and stator windings (12) arranged therein, and a rotor (3) which is arranged in the stator (5) and has a rotor shaft (2) mounted rotatably in the two end shields (6, 7). The electrical machine (1) furthermore has cooling channels (13) arranged fully in the stator laminated core (11, 11a) and edged by the latter. Furthermore described are a gear motor (30) comprising such an electrical machine (1), as well as a vehicle (20) comprising such an electrical machine (1).

Abstract: Rotor for an electrical machine has a rotor core with a plurality of radially outwardly extending rotor legs, a number of exciter windings corresponding to the number of rotor legs, each wound around one of the rotor legs, and a separating device, having a number of separating portions corresponding to the number of rotor legs, which are arranged between a respective pair of adjacent exciter windings and extend axially between two opposing end faces of the rotor, a first annular connecting portion which connects together the separating portions at one of the end faces, and a second annular connecting portion which connects together the separating portions at the other of the end faces.

Abstract: Rotor (1) for an electrical machine (101), having: a rotor core (2) with a plurality of radially outwardly extending rotor legs (3); a number of exciter windings (4) corresponding to the number of rotor legs (3), each wound around one of the rotor legs (3); and a pot-like end cap (5) which covers the end faces of the exciter windings (4) and has a passage opening (6) for a shaft (7), wherein the exciter windings (4) and the end cap (5) delimit intermediate spaces (16), in each of which a casting compound (17) is arranged.