Abstract: There is disclosed a microscale or nanoscale stepper motor in which one or more arrays of corresponding types of optically switchable molecular actuators are used to drive progressive motion between bodies of the motor.

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: A stepping motor includes a stator, a rotor rotatably supported by the stator, and an auxiliary magnetic member. The auxiliary magnetic member has a body, side edge parts at both circumferential ends of the body, and an opening between the side edge parts. The auxiliary magnetic member is elastically mounted around a flange of the stator. The auxiliary magnetic member includes, at one of the side edge parts, a projecting part protruding radially inward from a projected inner circumferential surface of the body across the opening.

Abstract: A motor includes a cover including a first cup body and a second cup body, each including a bottomed tubular shape. The first cup body and the second cup body are disposed with openings of the peripheral wall portions facing each other. The second cup body includes a bottom wall portion provided with stud bolts projecting from the bottom wall portion to one axial direction and spaced apart from each other in a circumferential direction. An end surface of a heat sink, facing the one axial direction, is in contact with a portion positioned between the stud bolts adjacent to each other in the circumferential direction in a surface of the bottom wall portion of the second cup body in the other axial direction.

Abstract: The present invention discloses a new type of mixed-wave permanent magnet motor, which relates to the field of motor technology. It comprises a motor shell, a stator and a rotor, wherein, the stator and the rotor are arranged in the motor shell; the stator comprises a fixed ring and stator iron cores, a plurality of the stator iron cores are distributed on a cover plate in circular mode, and the stator iron cores are wound with magnetic induction lines passing through the coils at both radial sides of stator iron cores; the rotor comprises an outer rotor part and an inner rotor part, and the outer rotor part is arranged outside the cylindrical inner rotor part; a stator zone is formed between the outer rotor part and the inner rotor part; the stator is located within the stator zone of the rotor.

Abstract: A wind portion of an insulator includes a side surface at the same side as, in a circumferential direction, a second guide surface which is orthogonal to a holding surface capable of holding a coil and which guides a winding in an inner-diameter direction, and an end surface orthogonal to the side surface. A first corner formed at a boundary between the holding surface and the side surface as viewed in the axial direction of a motor stator is located at a guiding-direction side by a first guide surface relative to a second corner formed at a boundary between the first guide surface and the second guide surface. The winding is extended from the second corner to the first corner.

Abstract: A short-circuit ring for a squirrel cage of a dynamoelectric rotary machine includes at least one indentation and is connectable by means of the indentation to at least one cage bar which projects from a rotor lamination of the dynamoelectric rotary machine.

Abstract: An interconnection device for a stator winding having connection conductors constructed as annular disks, coaxially stacked, and electrically insulated with respect to one another. Each connection conductor has fastening openings distributed in circumferential direction for fixing the interconnection device to a stator. The connection conductors are stacked such that the fastening openings are positioned to form a fastening passage The connection conductors are axially spaced apart from one another and are overmolded with a plastic to form a metal/plastic composite part. At least two kinds of fastening openings are provided, which form larger fastening openings and smaller fastening openings. A larger fastening opening and a smaller fastening opening are formed at a fastening passage, and an annular space, which extends from a boundary of the larger fastening opening to a boundary of the smaller fastening opening, is filled by the plastic.

Abstract: One embodiment relates to a cover assembly and a motor including the same, the cover assembly comprising: a cover body; and a plurality of grooves formed on the upper surface of the cover body so as to guide coils, wherein a hole is formed at one side of the groove so as to penetrate the cover body. Therefore, the motor guides the coils to the outside by using the hole formed in the cover assembly such that assemblability is improved.

Abstract: A motor connector comprises: a wiring unit, which includes an electric wire having a conductive wire having a conductive wire exposed through an insulating sheath, and a terminal coupled to the conductive wire and having a terminal formed at an end thereof; a base including a first molding part, in which the terminal is arranged, and a second molding part extending from the first molding part to the outside and having a space for accommodating the conductive wire and a part of the insulating sheath adjacent to the conductive wire; a fixing member coupled to the second molding part, and covering and fixing the sheath; and a grommet arranged in the space and coupled to an outer surface of the insulating sheath so as to press the electric wire.

Abstract: An electric machine having a stator core with axially extending slots and a plurality of windings. Each stator winding defines a continuous electrical conductor having a first wire and a second wire connected in series. The first wire defines a plurality of first axially extending segments disposed in the slots and a plurality of first end turn segments. The second wire defines a plurality of second axially extending segments disposed in the slots and a plurality second end turn segments. The first wire is a solitary wire defining a first cross sectional area and the second wire comprises a plurality of individual strands wherein each strand defines a second cross sectional area less than the first cross sectional area. In slots containing both first and second axially extending segments, the second axially extending segments are disposed closer to the rotor than the first axially extending segments.

Abstract: A motor includes a heat sink including a first portion and a second portion located on a circumference identical to the first portion and extending along a circumferential direction. An axial thickness of the first portion is larger than an axial thickness of the second portion. A lower surface of the second portion is located axially above a lower surface of the first portion. A busbar is located axially below the second portion.

Abstract: A rotating electrical machine includes a rotor; a stator having a core annularly arranged facing the outer peripheral surface of the rotor, a coil wound around the core and having a coil end formed protruding from an end surface in the axial direction of the core, and an insulator formed on the end surface in the axial direction of the core and insulating the core and the coil; a bus bar arranged on the outer peripheral side of the coil end of the stator; and a terminal block installed on the outer peripheral side of the bus bar for introducing an electric current from an external power source to the stator, and the insulator has a groove portion in which the bus bar is held, and a terminal block housing portion in which the terminal block is held.

Abstract: An electrical machine (10), in particular a machine which can be operated in electric generator mode and/or in electric motor mode, comprising a rotor (14) which has a shaft (13), wherein a part of a turbomachine (68) is formed on the shaft (13) and the part is a fan (60), wherein the fan (60) has a circumference (83) with a circumferential direction (85), and a housing (63) of an electrical unit (45) is adjacent to the fan (60) and serves as a housing of the turbomachine (68), and there is a gap (65) between the fan (60) and the housing (63) of the electrical unit (45), characterized in that the gap (65) has a radial width (B65R) which has a different magnitude depending on a circumferential position (U602) on the fan (60) which is arranged on the shaft (13).

Abstract: A linear-rotary actuator includes a base, a first linear motor, a second linear motor, a linear rail, and a ball screw. The first and second linear motors are disposed on the base and respectively have a coil assembly and a magnet backplane. The linear rail is located on the base. The ball screw includes a screw and a nut, wherein the screw is connected to the first linear motor, and the nut is connected to the second linear motor. When the screw and the nut are driven by the first and second linear motors to move along the linear rail in a synchronized manner, the linear-rotary actuator provides linear motion output. When the nut is driven by the second linear motor to move along the linear rail in an asynchronous manner with respect to the screw, the linear-rotary actuator provides rotary motion output.

Abstract: A motor connector comprises: a wiring unit including an electric wire having a conductive wire exposed from an insulating sheath, and a terminal coupled to the conductive wire and having a terminal part formed on the end portion thereof; a base including a first molding part having the terminal part disposed therein, and a second molding part extending outwards from the first molding part and having a receiving space for receiving the conductive wire and a part of the insulating sheath adjacent to the conductive wire; a fixing member coupled to the second molding part and covering the sheath so as to fix the same; and a molding member filling the receiving space so as to seal the gap between the first molding part and the second molding part.

Abstract: A rotating electric machine includes a rotor, a stator, and a case, wherein each of the sub stator cores has a first insulated bobbin, a stator iron core, a second insulated bobbin, and a coil, and the coil is disposed in teeth parts of the first insulated bobbin, the stator iron core, and the second insulated bobbin, all of which are stacked in layers, and the first insulated bobbin has three ring holding parts which are formed in a core back part and extend to a circumferential direction, and the bus rings are separately inserted into the ring holding parts formed in the first insulated bobbin, and the first insulated bobbin, the stator iron core, and the second insulated bobbin each has a convex part formed at one side face of the core back part and a concave part formed at the other side face of the core back part.

Abstract: Actuator apparatus for generating a physical effect, at least one attribute of which corresponds to at least one characteristic of a digital input signal sampled periodically in accordance with a sampling clock, the apparatus comprising at least one actuator device, each actuator device including an array of moving elements, wherein each individual moving element is operative to be constrained to travel alternately back and forth along a respective axis responsive to an individual first electrostatic force operative thereupon, wherein each moving element has an at-rest position and is driven away from its at rest position solely by the first electrostatic force; and at least one electrode operative to apply a controlled temporal sequence of potential differences with at least one individual moving element from among the array of moving elements thereby to selectably generate the first electrostatic force; and a controller operative to receive the digital input signal and to control at least one of the at leas

Abstract: The electric machine includes a plurality of rotors drivingly coupled to a common shaft defining a shaft axis about which the common shaft is rotatable, and a common stator for the plurality of rotors, the common stator extending circumferentially about the common shaft. The rotors are rotatable about respective rotor axes which are substantially perpendicular to the shaft axis.

Abstract: A brushless winding field rotational electric machine positioned between a starting device and a case enclosing the starting device includes: a stator, which is held to the case, including an alternating-current coil configured to generate a rotation magnetic field by alternating current; a field core, which is held to the case, including a field coil to be excited by direct current; and a rotor disposed on an outer periphery of the starting device and rotatably held about a rotational axis relative to the stator and the field coil. The rotor includes a connection portion to be connected to a synchronized rotation member configured to rotate in synchronization with an engine along the rotational axis, on a facing surface to the synchronized rotation member.