Abstract: A stator includes a stator core that includes a core back portion having an annular shape and with a central axis as a center and tooth portions extending from the core back portion to an inside in a radial direction and arranged in a circumferential direction, insulators that are attached to the tooth portions from the inside in the radial direction, a coil that is wound around the insulator, and a cover that supports an inner surface of the insulator opposing the inside in the radial direction from the inside in the radial direction.

Abstract: A busbar unit electrically connected to a motor comprising a stator around which a coil is wound includes: a first terminal including a first body and a first terminal part protruding from an upper portion of the first body and electrically connected to the coil; a first holder configured to support the first terminal such that the first terminal part is exposed to an outside of the busbar unit; and a second holder disposed on an upper portion of the first holder and configured to press the coil against the first terminal part.

Abstract: A pressure compensating assembly for a drive mechanism of a vehicle, wherein the drive mechanism includes as drive components an electrical machine a power electronics unit, and a transmission, wherein each drive component is disposed in a respective housing which encloses an air space, wherein at least two air spaces of adjacent housings are interconnected in an air-permeable manner, wherein the pressure compensating assembly includes a pressure compensating member common to all drive components, which member connects the air spaces of all drive components of the drive mechanism to an environment and is disposed above a wading line of the vehicle when the pressure compensating assembly is installed in the vehicle.

Abstract: A rotating electric machine includes a stator and a rotor. The rotor includes a rotor core, an axial end part, and a rotor magnet inserted into an insertion hole formed so as to pass through the rotor core. The axial end part has a recessed portion. The rotor magnet includes a first side surface and a second side surface. The first side surface is fixed to a first inner wall surface of the insertion hole. In a cross section perpendicular to the axial direction, a width of the first inner wall surface is larger than a width of the first side surface. The second side surface is fixed to a second inner wall surface of the recessed portion. In the cross section perpendicular to the axial direction, a width of the second inner wall surface is larger than a width of the second side surface.

Abstract: A bus bar assembly includes a bus bar holder and bus bars each including a main line portion extending in a plane perpendicular or substantially perpendicular to a center axis in a posture in which a plate surface is oriented in an axial direction, and a connection terminal portion connected to an end portion of the main line portion. When viewed in the axial direction as a symmetry axis, the main line portion of the first U-phase bus bar and the main line portion of the second U-phase bus bar, the main line portion of the first V-phase bus bar and the main line portion of the second V-phase bus bar, and the main line portion of the first W-phase bus bar and the main line portion of the second W-phase bus bar, each have a shape line-symmetric to each other.

Abstract: In one embodiment, an advanced electric propulsion system comprises: a housing; an electric motor within the housing; a motor drive coupled to the motor; a thermal management system comprising: a manifold-mini-channel heat sink integrated into the housing, the manifold-mini-channel heat sink comprises: an inlet manifold having air inlets formed in front of the housing; a set of plurality of circumferentially grooved micro-channels formed in the housing and coupled to the air inlets and conductively thermally coupled to stator windings of the electric motor; an outlet manifold having an air outlets formed at a back of the housing and coupled to the set of plurality of circumferentially grooved micro-channels; wherein the electric motor comprises PEW stator windings that provide a low thermal resistance path from the stator of the electric motor to the housing; wherein the PEW stator windings comprise a high temperature tolerant thermally conductive electrical insulator.

Abstract: An electric machine, in particular for a motor vehicle, is provided. The machine includes a housing, which is designed open and partially surrounds a housing interior. The machine, furthermore, includes a rotor, which is arranged rotationally adjustably relative to the housing in the housing interior. The machine additionally includes a stator, which is arranged fixed in place relative to the housing in the housing interior and includes multiple magnetic field coils with electrically energizable stator windings. For electrically energizing the stator windings the field coils are electrically connectable or connected to a power electronic system. The power electronic system includes a cooling plate for cooling the power electronic system and is formed by a power electronic module that is formed separately from the housing and can be inserted into the housing interior.

Abstract: Disclosed are a manual and remote control forward and reverse rotation control device and its control method for DC brushless ceiling fans. The control device includes a power supply, a remote control, a manual control switch assembly and a ceiling fan brushless motor which are electrically connected with one another. A gear position signal can be inputted from a remote end to determine and control the forward and reverse rotations of a brushless motor of the ceiling fan. The remote control can be connected externally by an existing control line or a manual controller module without requiring additional wiring, so as to improve the diversity of structural mechanism, increase the versatility of remote operation, and achieve good functionality and variability of applications.

Abstract: A motor-driven compressor includes a compression portion, an electric motor, an inverter, and a metal housing. The inverter includes three-phase switching elements and a plastic holder that retains the three-phase switching elements. The housing includes a thermal radiation surface. The holder includes a metal spring. The holder is fixed to the housing using two fasteners. The three-phase switching elements are laid out between the two fasteners. The switching elements at opposite ends of the three-phase switching elements are pressed toward the thermal radiation surface by only the holder. The switching element at the middle of the three-phase switching elements is pressed toward the thermal radiation surface by the holder and the spring.

Abstract: The invention refers to a housing assembly for an electric drive or an electric drive unit, in particular of a motor vehicle, comprising a housing, a cooling fluid and an inverter, the housing forming a cooling circuit for receiving the cooling fluid with at least one first recess and the inverter having at least one capacitor assembly which is provided for arrangement in the first recess of the housing. The capacitor assembly is formed with at least one capacitor, in particular a wound capacitor, a shell for receiving the capacitor and a thermal conduction element, in particular a thermally conductive resin, for embedding the capacitor in the shell. The capacitor assembly can be coupled directly to the shell. Furthermore, the invention refers to a motor and a vehicle.

Abstract: An axial field rotary energy device can include a rotor comprising an axis of rotation and a magnet. In addition, a stator can be coaxial with the rotor. The stator can include a plurality of stator segments that are coupled together about the axis. Each stator segment can include a printed circuit board (PCB) having a PCB layer comprising a coil. Each stator segment also can include only one electrical phase. The stator itself can include one or more electrical phases.

Abstract: A vehicle drive device includes: a first electric machine; an electric machine housing accommodating the first electric machine; a live part that is provided inside the electric machine housing and is electrically connected to the first electric machine; and a temperature-control circuit for temperature control for the first electric machine. The temperature-control circuit includes: a first temperature-control circuit through which a non-conductive first temperature-control medium circulates; a second temperature-control circuit through which a conductive second temperature-control medium circulates; and a heat exchanger configured to exchange heat between the first temperature-control medium and the second temperature-control medium. A protection cover including a first protection wall is provided inside the electric machine housing.

Abstract: The present disclosure relates to a busbar unit for a motor, which includes: a terminal; a holder configured to support the terminal and having an accommodation portion disposed in an outer surface of the holder; and a temperature measurement module disposed in the accommodation portion, thereby simplifying a structure of the busbar unit and a process of assembling the busbar unit and improving stability and reliability of the busbar unit.

Abstract: An electric drive unit having a multi-phase electric motor and an inverter with a plurality of power semiconductors, an inverter mount, and a plurality of busbars. The power semiconductors are mounted to the base of the inverter mount in an annular arrangement and with the terminals of the power semiconductors extending through the base. Each of the busbars has a first busbar portion, which includes a first body and a set of first fingers that are fixedly coupled to the first body, and a second busbar portion that includes a second body and a set of second fingers that are fixedly coupled to the second body. Associated fingers in the first and second sets of fingers of each bus bar are mechanically and electrically coupled to opposite sides of a corresponding one of the terminals.

Abstract: A stator of an electrical machine, more particularly an electric motor of a motor vehicle, comprising: a laminated stator core, which has a number of stator teeth and is provided with a rotating field winding, which is arranged on the stator teeth and comprises a plurality of phases, the phases of the rotating field winding being formed from a continuously wound winding wire; and a connecting device having a number of U-shaped sockets corresponding to the number of phases, said sockets being provided for each holding one insulation displacement contact as a point of connection of the winding wire to phase terminals on a stator end face, each socket having two vertical U legs and a contact slot arranged therebetween for receiving the winding wire, one of the two vertical U legs of the socket being longer in an axial direction than the other vertical U leg in each case.

Abstract: A stator includes a terminal unit disposed on a first side in an axial direction with respect to a stator main body, and the terminal unit includes a base extending in an arc shape in a circumferential direction following the stator main body, a first inner side engaging portion provided on an inner circumferential edge of the base, an outer side engaging portion provided on an outer circumferential edge of the base, and an arm extending from the outer circumferential edge of the base in the radial direction and continuous with the outer side engaging portion.

Abstract: A stator includes a stator core having a plurality of teeth, an insulator, a plurality of coils, a first region in which distal ends of feeder lines are connected to each other, and a second region in which distal ends of neutral lines are connected to each other. The insulator has inner and outer walls spaced from each other in a radial direction. In a cross section at a gap between two adjacent coils, along a plane including an axis of the stator core, a center of gravity of the first region is positioned above a center of gravity of the second region in an axial direction. B<A and C<A, where a radial length of the first region is B, a radial length of the second region is C, and a radial length between the inner wall and the outer wall of the insulator is A.

Abstract: In resin molding, potting to be conducted with a male terminal bonded to a female terminal increases costs and processes. A resin-molded stator includes a coil, a female terminal, a male terminal, and an insulator. The female terminal includes a female terminal connection portion and a spring portion. The male terminal includes a male terminal connection portion, a wire connection portion, and a second surface contact portion. The insulator accommodates the female terminal connection portion, the spring portion, and the male terminal connection portion, and electrically connects the male terminal to the female terminal. The second surface contact portion faces a second surface of the insulator wall.

Abstract: Drive units for electric vehicles are provided. One example provides a drive unit for an electric vehicle including a first housing section forming a first compartment to house an electrical inverter and a second housing section forming a second compartment to house an electric motor. The drive unit housing further includes an inlet port to receive a fluid and a shared wall separating the first compartment and the second compartment. The shared wall defines fluid pathways in fluid communication with the inlet port to circulate the fluid to cool the electrical inverter. The drive unit also includes an outlet port in fluid communication with the fluid pathways to discharge the fluid.

Abstract: The purpose of the invention is to achieve a miniaturized power tool. Provided is a hammer drill (1A) that includes: a brushless motor (10) that is a drive source for a tip tool (20); a control unit for controlling the driving of the brushless motor (10); a motor housing (33) to which the brushless motor (10) is attached; and a handle housing (34) provided with a grip (2). The control unit includes: a switching board (12) and a Hall element board (13); and a converter board (11) on which an electrolytic capacitor (11a) is installed. The brushless motor (10) is disposed to be sandwiched between the electrolytic capacitor (11a), and the switching board (12) and the Hall element board (13), along the axial direction (M) of a drive shaft (16) that drives the tip tool (20).