Abstract: Disclosed is a stator assembly, which includes a stator core having a circular base part, a plurality of teeth radially formed on an outer face of the base part, and a tooth end portion at the end of the teeth, the stator core comprising a first coating layer formed on an entire surface of the base part and the teeth; and a second coating layer formed on a surface of the first coating layer, wherein the entire surface of the base part and the teeth is coated with the first coating layer and the entire surface coated with the first coating layer is coated with the second coating layer, and wherein the first coating layer and the second coating layer are made of insulating powder.

Abstract: A rotor includes a first rotor core, a second rotor core, a permanent magnet and a resin layer. The first rotor core includes a first core base and first claw-shaped magnetic poles arranged at equal intervals on a peripheral portion of the first core base. The second rotor core includes a second core base and second claw-shaped magnetic poles arranged at equal intervals on a peripheral portion of the second core base. The first rotor core and the second rotor core are combined with each other so that the first and second core bases are opposed to each other and the first and second claw-shaped magnetic poles are alternately arranged in the circumferential direction of the rotor. The permanent magnet includes at least a main field magnet. The main field magnet is located between the first and second core bases in the axial direction, and is magnetized in the axial direction.

Abstract: Systems and methods are provided for an induction motor. An induction motor includes a spherical rotor and a plurality of curved inductors positioned around the spherical rotor. The plurality of curved inductors are configured to rotate the spherical rotor continuously through arbitrarily large angles among any combination of three independent axes.

Abstract: A magnetic load sensor unit (1) is provided which can detect the magnitude of an axial load applied by a linear motion actuator (14) to a friction pad (22). The magnetic load sensor unit (1) includes a magnetic target (4) which generates a magnetic field, and a magnetic sensor (5) designed to move relative to the magnetic target (4) corresponding to the axial load.

Abstract: An electric motor has efficient self-cooling. The electric motor contains a rotor that is rotatably mounted with respect to a stator. On a first sub-segment of an end face of the rotor, a first air-guiding contour is formed that, during rotation of the rotor in a reference rotation direction, generates an outwardly directed air flow. On a second sub-segment of the same end face, a second air-guide contour is formed that, during rotation of the rotor in a reference rotation direction, generates an inwardly directed air flow.

Abstract: The armature of the present invention comprises windings which have ends to be inserted into a tubular terminal, and visually identifiable marks made on the windings to be used for confirming if the ends of the windings have been inserted into the tubular terminal up to a suitable depth. The marks of the armature of the present invention are made on portions of the windings which are always positioned at the outside of the terminal even when the ends of the windings are positioned at the inside of the tubular terminal.

Abstract: Two or more switching devices (36) and two or more lead frames (41, 42, 43, and 44) are integrally molded by use of a molding resin (37) so that a power module (30) is formed; the power module (30) is made to adhere to a heat sink (32) via an insulating material (31); the power module (30) and the heat sink (32) are fixed to a housing (33) of the power module composite (23); the power module composite (23) is fixed to a case (6) of an electric rotating machine (1) via the housing (33).

Abstract: It comprises stator segments forming a stator structure and a transverse structure connected to the stator structure and arranged between at least two stator segments. The transverse structure may have reinforcing ribs extending therealong and a handling device at longitudinally opposite portions of the transverse structure. A wind turbine generator comprising a rotor and said stator assembly and a wind turbine comprising such a generator are also provided.

Abstract: A permanent magnet DC motor with 2P magnetic poles, where P is an integer greater than 1, comprising a stator (100) with a plurality of magnetic components, and a rotor (104) configured to rotate relative to the stator. The rotor may comprise a commutator and a rotor core with a plurality of rotor teeth (106) defining a plurality of rotor grooves (108), wherein the rotor grooves accommodate a plurality rotor windings. In some embodiments, the commutator comprises a plurality m of commutator bars (Z), wherein m is an even number greater than 2. The rotor windings comprises a plurality of coil elements (W), wherein a coil element comprises two ends connecting a pair of commutator bars, such that a first pair of adjacent commutator bars is connected through P?1 serially connected coil elements, and a second pair of adjacent commutator bars is connected through P+1 serially connected coil elements.

Abstract: A rotating electrical machine includes: a core including an annular yoke portion disposed while being centered around a rotation axis; toothed portions protruding from the yoke portion in a radial direction; and a tooth flange portion circumferentially sticking out from a protruding end of each of the toothed portions while being centered around the rotation axis; and an insulator covering a region from the toothed portion to the tooth flange portion, wherein the insulator includes a tooth cover portion, and a flange cover portion, and a reinforced portion is formed at the boundary between the tooth cover portion and the flange cover portion, and includes a first restricting surface, and a second restricting surface.

Abstract: A rolling-element bearing for an electromagnetic solenoid includes a hollow cylindrical cage with a plurality of spherical pockets formed around a first circumference and a second circumference of the cage. The pockets around the first circumference are offset from the pockets around the second circumference. Spherical rolling elements are provided in the spherical pockets and are captured for free rotation in the first pockets and second pockets.

Abstract: The aim of the invention is to better compensate for specifiable forces on a magnetic mounting. This is achieved by a magnetic mounting device with a first magnet device (10), which is designed in an annular manner and which has a central axis, for retaining a shaft on the central axis in a rotatable manner by means of magnetic forces. The magnetic mounting device additionally has a second magnet device (12), which is independent of the first magnet device (10), for compensating for a specifiable force acting on the shaft. In this manner, the magnetic mounting device can compensate for the gravitational force or forces based on imbalances.

Abstract: An actuator includes a fixed section that includes a spindle and a coil fixed to the spindle, a first movable section that includes a first magnet magnetized in an inside-outside direction and disposed to cover the outer peripheral surface of one end in an axial direction of the fixed section, that is mounted on the spindle in an elastically-maintained state, and that is movable in the axial direction, and a second movable section that includes a second magnet magnetized in the inside-outside direction and disposed to cover the outer peripheral surface of the other end in the axial direction of the fixed section, that is mounted on the spindle in an elastically-maintained state, and that is movable in the axial direction. When current flows in the coil, the first movable section and the second movable section move in the opposite directions.

Abstract: A rotor connection support comprising a main connection ring configured to reduce the moment load on fastener locations (such as threaded fastener locations) by integrating stand-off posts into a high strength plate are discussed herein. These stand-offs may be configured to reduce the stresses on the high stress concentration/low cross section threads. Also, included is an improved wire routing and wire support configured to maximize the fatigue cycles of the main field lead wires.

Abstract: The present invention relates to an electric drive device for driving of a motor vehicle comprising an electric motor arranged to be media supplied, the electric motor having a jacket surface and an essentially ring shaped cross section, wherein said media supply is arranged to be effected via a connection unit arranged in connection to the jacket surface of the electric motor. The invention also relates to a motor vehicle with an electric drive device.

Abstract: Provided is a rotating electrical machine wherein it is possible to sufficiently cool an electronic device attached to a rotor by means of a liquid refrigerant. A rotor for a rotating electrical machine is provided with a shaft supported in a rotatable manner, a rotor core secured to the shaft, an electronic device disposed so as to rotate along with the shaft and the rotor core, a coil wound around the rotor core and connected to the electronic device, and a cooling structure for sequentially cooling the electronic device and the coil by means of a liquid refrigerant supplied from the shaft.

Abstract: In one aspect, a stator for use in a liquid cooled electric machine having a rotor is provided. The stator includes a stator body having a radially outer periphery and a radially inner periphery, and at least one first coolant passage extending radially through the stator body from the outer periphery to the inner periphery. The at least one first coolant passage facilitates providing a coolant to an air gap defined between the stator body and the rotor.

Abstract: A cooling arrangement for electric machines where cooling plates are maintained against the inner surface of the stator and are interconnected by a cooling tube that carries the stator generated heat outside of the machine.

Abstract: A stator includes an annular stator core, a stator coil and a plurality of lead wires. The stator coil is comprised of windings mounted on the stator core and has a coil end part protruding from an axial end face of the stator core. Each of the lead wires is made up of a corresponding one of end portions of the windings of the stator coil. The lead wires include, at least, a first lead wire and a second lead wire. The first lead wire has a radially-extending part that adjoins the coil end part of the stator coil and extends in a radial direction of the stator core. The second lead wire has a circumferentially-extending part that adjoins and intersects the radially-extending part of the first lead wire and is located on the opposite side of the radially-extending part to the coil end part of the stator coil.

Abstract: The magnetic gear device is equipped with a first magnet row in which a plurality of magnetic pole pairs are arranged at substantially equal intervals in a specific direction; a second magnet row which is opposed to the first magnet row and in which a plurality of magnetic pole pairs are arranged at substantially equal intervals in the specific direction at a pitch shorter (or longer) than that of the first magnet row; and a magnetic body row which is disposed between the first magnet row and the second magnet row and in which a plurality of magnetic bodies are arranged at substantially equal intervals in the specific direction, wherein a distance between the plurality of magnetic bodies and the second magnet row in the opposing direction is shorter (or longer) than a distance between the plurality of magnetic bodies and the first magnet row.