Abstract: Aspects and embodiments disclosed herein include a highly efficient electric motor which can be embodied in several configurations, including a standard motor, a hub motor, a linear motor, or other motor configuration. In one example, there is provided a motor comprising a rotor including a plurality of magnets and a stator including at least one coil module, the at least one coil module including a plurality of coils of conductive material, the plurality of coils arranged horizontally displaced to from one another and retained in a matrix material of the at least one coil module.

Abstract: A stator includes a body portion having an outer portion and an inner portion that defines an interior region, a plurality of stator teeth members extending from the inner portion into the interior region, and at least one continuous conductor wound around select ones of the plurality of stator teeth members to form at least one pole. Each of the plurality of stator teeth members including a number of wraps of the at least one continuous conductor. The at least one continuous conductor including a number of twists that is fewer than the number of wraps.

Abstract: A stator includes an iron core 3 in which a plurality of teeth 2 are connected into an integral body, and coil wires 5 each of which is wound in series around each set of a predetermined number of teeth included in the plurality of teeth. Each of the coil wires 5 is routed in a slanting direction between opposed faces of two adjacent teeth 2 in each set of the predetermined number of teeth 2, so that each of the coil wires makes a transition from a wire wound around one of them 2 to a wire wound around the other tooth 2.

Abstract: There is provided a compact stator coil assembly that has heat radiation increased and a cooling performance improved. A stator coil assembly includes a first coil piece, a second coil piece, and an insulating member provided with a retaining portion that catches the first coil piece and the second coil piece so that those coil pieces form a predetermined coil pattern. A coil loop is formed by the first coil piece and the second coil piece. The stator coil assembly further includes a heat-transfer member having a heat-transfer portion insulated from the first coil piece and the second coil piece and embedded in the insulating member, and a slit formed in the heat-transfer member so as to cut off the pathway of an induced current that is to flow through the heat-transfer member.

Abstract: A disk motor includes a rotor, a stator, and an output shaft which is coaxially integrated with the rotor, a coil disk is provided in one of the rotor and the stator, a magnetic-flux generating part is provided in the other of the rotor and the stator, and the coil disk is configured by laminating a plurality of coil substrates each on which a coil pattern is printed. Among these coil substrates, in the coil substrates 40Aa and 40Af on both ends in the laminating direction having relatively good heat dissipation effect, the coils are electrically connected in series to each other, and, in the coil substrates 40Ab to 40Ae on an inner side in the laminating direction having relatively poor heat dissipation effect. at least a part of the coils is electrically connected in parallel to each other.

Abstract: A stator of a rotating electric machine includes: a plurality of teeth having a same shape are arranged in a radial direction toward a rotary shaft core with base ends thereof being coupled to a core back in a ring shape; a slot formed between the adjacent teeth; a flange portion formed projecting to opposite sides of apical ends of the teeth; a slot inlet formed between the adjacent flange portions; a winding area formed around each teeth; and a wire wound via an insulator having a same shape in each winding area. A first wire is wound around first teeth provided alternately, and a second wire is wound around second teeth put between the first teeth, and the first wire and the second wire are wound in a different shape in a sectional shape of opposing portions.

Abstract: A stator comprises: a stator core having a plurality of slots; and a cage coil formed of a rectangular combined conductor that is wound by a plurality of turns. The combined conductor includes: a first conductor formed in a continuous zig-zag pattern; a second conductor formed in a continuous zig-zag pattern, the first and second conductors being combined to overlap one on the other with a displacement of one pitch; conductor in-slot portions overlapped and mounted in each of the slots of the stator core; conductor connecting portions placed circumferentially on the outside of the slots; and conductor stepped portions connecting the conductor in-slot portions and the conductor connecting portions.

Abstract: Implementations of actuators and capacitor-based position sensors for monitoring and controlling positioning of the actuators are provided, including implementations of actuators that use flexures to provide support to actuators and pivoting mechanisms to the actuators. Such actuators can be electromagnetically activated actuators that include a magnet stator and a coil rotor mounted on a flexure. A positioning sensor, such as a capacitor sensor, is provided to measure and monitor positioning of the actuator and is coupled to a feedback circuit which uses the measured positioning of the actuator to control the actuator.

Abstract: A winding for an n-phase electric motor is disclosed. The inventive winding comprises a number of consecutive winding groups of n individual windings, wherein at any point in time an individual winding of a first group exhibits one direction of current flow and wherein at the same point in time a corresponding individual winding of an adjacent group exhibits the opposite direction of current flow. There is also disclosed a method for preparing such winding. It is further disclosed a magnetic unit adapted for such winding, comprising permanent magnets being essentially triangular in cross-section. Further, there is disclosed electric motors using the inventive winding concept, as well as geodetic instruments taking advantage thereof. An electric motor according to the disclosed inventive concept is particularly well suited for direct drive.

Abstract: The present invention provides an improved single-layer coil for a rotating or linear electrical machine. The coil has a first endwinding that is substantially straight to a longitudinal axis of the coil and a second endwinding that is bent relative to the longitudinal axis of the coil. The coil therefore has differently shaped endwindings with one end 12 being ‘straight’ and the other end being ‘bent.

Abstract: An alternator including a rotatably-assembled permanent magnet, the magnetization direction of the magnet being orthogonal to the rotation axis, and a winding with no iron core surrounding the magnet and having each turn in a plane substantially parallel to a plane containing the rotation axis, the winding extending across a dihedral angle from the rotation axis smaller than 75 degrees and, radially, over a distance ranging between one quarter and half of the magnet diameter.

Abstract: There is provided a stator core assembly including: a body having a circular ring shape; a teeth part including a plurality of teeth extended from the body; and a plurality of coils wound around the plurality of teeth, wherein the coils are wound n+3k times around any one of the plurality of teeth and wound n times around the remaining teeth.

Abstract: A switched reluctance motor includes at least four stator poles and an electrically conductive material around each of the stator poles. The geometric outline, on one side of the stator pole, of at least one of the conductive materials is not rectangular, as viewed from a cross-section of the switched reluctance motor showing each of the stator poles.

Abstract: A multilayered miniature coil component, comprising a plurality of coil layers and insulating layers, the plurality of coil layers and insulating layers being alternately overlapped on each other. Each of the plurality of coil layers includes a plurality of coils and wires, each of the coils has a first and a second end, and a plurality of first conductive portions is disposed on each of the coil layers, at least one second conductive portion is disposed on at least one of the coil layers, and each of the plurality of insulating layers has a plurality of conductive through holes disposed correspondingly to the first conductive portions and the second conductive portions, thus through the plurality of wires, the first and the second conductive portions and the conductive through holes, the plurality of coils in each of the coil layers are composed as a circuit loop.

Abstract: A stator includes a stator support having multiple axially extending circumferentially arranged slots. Multiple phases each include multiple coils. Each of the coils has first and second opposing sides of conductor provided in the slots. A conductor in a second side of a first phase first coil is interspersed with a conductor in a second phase first coil. The conductors in a first side of the first phase first coil are arranged adjacent to one another and non-interspersed.

Abstract: A stator coil production method using a plurality of shaping press pairs. A stator coil is made up of in-slot portions to be disposed in slots of a stator core and coil-end portions each of which extends every adjacent two of the in-slot portions. Each of the shaping press pairs has a die and a punch disposed on both sides of a conductor wire travel path. The method includes a first step of moving the die and the punch close to each other to shape a portion of a conductor wire into one of the coil-end portions, and a second step of bringing adjacent two of the shaping press pairs close to each other and simultaneously moving one of the adjacent two of the shaping press pairs in a direction perpendicular to the conductor wire to shape a portion of the conductor wire into one of the in-slot portion.

Abstract: The present disclosure relates to a motor and a motor driven power steering system using the same. More particularly, the present disclosure relates to a motor adapted to maintain a balance of currents, and a motor driven power steering system adapted to reduce vibrations and noise and enhance steering quality using the same.

Abstract: An axial gap electrical machine employs unique architecture to (1) overcome critical limits in the air gap at high speeds, while maintaining high torque performance at low speeds, while synergistically providing a geometry that withstands meets critical force concentration within these machines, (2) provides arrangements for cooling said machines using either a Pelletier effect or air fins, (3) “windings” that are produced as ribbon or stampings or laminates, that may be in some cases be arranged to optimize conductor and magnetic core density within the machine. Arrangements are also proposed for mounting the machines as wheels of a vehicle, to provide ease of removing and installing said motor.

Abstract: A synchronous electric motor includes rotor having a plurality of radially-oriented magnetic dipoles and a stator. Stator teeth group with a plurality of sets of stator teeth are arranged in the same position in terms of an electrical angle with another stator teeth group to provide rotational symmetry about an axis of the rotor. In each of the stator teeth groups a predetermined number of stator teeth are arranged at intervals different from intervals of the rotor magnetic dipoles. A main coil is wound about a predetermined number of stator teeth with a sub-coil further wound around one or more a teeth. Phase and magnitude of a resulting magnetic field is adjusted by the number of loops of the main coil and sub-coil. A given stator tooth can produce maximum torque despite any difference between an alignment of the stator tooth and an inter-polar interval of the stator.

Abstract: Stator of an electrical machine are already known, having a stator lamination stack, having coil forms fastened thereto which each include an electrical coil. The coil forms are each pressed onto a tooth of the stator lamination stack, convex protuberances, which generate the dynamic compression, being provided on the teeth of the stator lamination stack. The inherent drawback here, however, is that the convex protuberances are expensive to manufacture. In the case of the stator according to the present invention, the fastening of the coil forms to the teeth of the stator lamination stack is simplified. It is provided in accordance with the present invention that at least one fastening element (9) be provided at the two end faces of the stator lamination stack (2) that includes a fastening means (10) which cooperate in a form-locking manner and/or force-locking with coil forms (6).

Abstract: A rotary electric machine including a core having a plurality of slots disposed in a distributed manner in a circumferential direction of a cylindrical core reference surface, the slots each having a slot opening portion that opens in an opening direction toward one side in a radial direction of the core reference surface, and a coil conductor wire wound around the core. The coil conductor wire has a deformable cross-sectional shape, a diameter of the coil conductor wire with a circular cross-sectional shape is larger than a slot opening width which is a width of the slot opening portion in the circumferential direction, and the coil conductor wire is flexible enough to be flattened so as to be equal to or less than the slot opening width.

Abstract: A segmented annular stator for a dynamo-electric machine is disclosed which simplifies transport and assembly of the machine. The segment has a cross section essentially shaped as a circular arc and includes a first and a second segment boundary configured for attachment to an additional segment, a corresponding coil associated with each phase of a three-phase system, a first conductor, and a second conductor. The first conductor is connected to the second conductor via an end connection in an area of end windings, such that a first coil associated with a first phase surrounds second and third coils associated with second and third phases of the three-phase system.

Abstract: A stator includes a stator core, a plurality of slots, and a conductor. The plurality of slots are formed within the stator core. The conductor is disposed continuously within at least two of the plurality of openings.

Abstract: In accordance with the embodiment a folded electromagnetic coil comprises an electrically conducting wire looped and folded many times such that two or more semicircular sections are formed with approximately the same centerline and the same coil opening such that a supported-magnet can pass unobstructed though the coil center.

Abstract: An electric machine includes a stator disposed about an axis in register with the rotor. The stator has a plurality of slots parallel to the axis. A plurality of windings with generally rectangular cross sections is provided with each winding having a first portion disposed radially inward of a second portion relative to the axis. At least two of the plurality of windings are at least partially inserted into each of the plurality of slots. The plurality of generally rectangular windings in each of the plurality of slots is configured to reduce resistive loss within the stator.

Abstract: In an electric rotating machine, a stator coil is comprised of first and second winding groups. The stator coil is wound around a stator core in a concentrated winding manner so that the phase difference in electrical angle between each corresponding pair of windings of the first and second winding groups is equal to ?/6. Further, the windings of the first and second winding groups are connected to form ?-Y connections. Consequently, the sixth harmonic components of the electromagnetic forces created by the windings of the first winding group can be offset by those of the electromagnetic forces created the windings of the second winding group. As a result, the total magnetic noise and torque ripple generated in the machine can be reduced. Moreover, the machine can be driven with only a single three-phase inverter to achieve the effects of reducing the total magnetic noise and torque ripple.

Abstract: A high-temperature superconductor (HTS) coil includes a coil winding with a superconducting material and a coil former for carrying the coil winding. When the high-temperature supercon-ductor (HTS) coil cools down from a room temperature to an operating temperature, the coil winding or the coil former counteract a thermal shrinkage of the coil winding in order to avoid or reduce a longitudinal compression of the superconducting material of the coil winding.

Abstract: An apparatus for manufacturing a stator. On a split core of the stator, there are wound main conductors and two auxiliary conductors, which are thinner than but correspond to the main conductors. These main conductors are arrayed and wound in a plurality of layers, such that the main conductors of an upper layer are arranged in the valleys between the adjoining main conductors of a layer. For the main conductors of a first layer, the auxiliary conductors are arranged in a first space and a second space. For the main conductors of the second and subsequent layers, the auxiliary conductors are arranged in a third space, and the auxiliary conductors are arranged in a fourth space.

Abstract: A rotating electrical machine includes a rotor, in which a plurality of magnetic poles are provided in circumferential direction, and a stator, within which the rotor is disposed. In the stator, two stator magnetic poles are formed by winding coils of one phase and by a stator core of the stator within 360° of electrical angle defined by the magnetic poles of the rotor. The coils that form respective stator magnetic poles have angular widths in circumferential direction of less than 180° of electrical angle, the coils that form the respective two stator magnetic poles are provided so as not to mutually overlap and are wound so that adjacent ones of the stator magnetic poles have mutually opposite polarities, and, in the stator, each winding of each coil consists of an external bridge wire, a turn portion, an internal bridge wire, and a turn portion, in that order.

Abstract: An active part of an electrical machine has a carrier, a plurality of coils which are arranged on the carrier and which each include a plurality of sub-conductors and a winding head area, in which the coils project out of the carrier in a curved shape, respectively and are connected to one another. At least one of the plurality of coils has a coil arc in the winding head area, and the center line of the coil runs in one plane in the coil arc. The sub-conductors of one coil run parallel to the plane in the coil arc of the coil and themselves in each case form sub-conductor arcs. The vertices of the sub-conductor arcs of the coil form a line of inclination which runs at an angle to the plane.

Abstract: A motor comprises a coil structure and a plurality of magnetic materials. The coil structure includes three winding groups, each of which has a plurality of winding portions. The winding portions have an interval therebetween, and are electrically connected by a wire. The magnetic materials are disposed adjacent to the coil structure and corresponding to the winding groups. Accordingly, the motor has more magnetic materials within the same bending angle of the enameled wire, so that the motor can output larger torsion and power to enhance the motor efficiency.

Abstract: The present invention provides an improved single-layer coil 10 for a rotating or linear electrical machine. The coil 10 has a first endwinding 12 that is substantially parallel to a longitudinal axis LA of the coil and a second endwinding 14 that is bent away from, or towards, the longitudinal axis. The coil 10 therefore has differently shaped endwindings with one end 12 being ‘straight’ and the other end 14 being ‘bent’.

Abstract: Stator winding (10) for an electric machine, in particular for a generator of a motor vehicle, the stator winding (10) being embodied as an ordered stator winding (10), and the stator winding (10) being embodied in at least two axially spaced-apart levels (22, 24) in a winding head (13). The invention also relates to an electric machine and a method for manufacturing a stator winding (10) of an electric machine.

Abstract: A method for the mechanical winding of a coil having at least one wire is disclosed. The coil has a coil inner side and at least two winding layers, with one winding layer being formed by turns situated essentially parallel to the coil inner side, to increase the precision of the winding and to reduce the dimensional tolerances of the winding. At least during the winding of a first winding layer, a gap is formed at a predefinable position between a first turn and a second turn adjacent to the first turn, with the second turn being wound immediately following the first turn. The width of the gap at least regionally is at least one wire diameter, and the wire is guided into the gap after the winding of the second turn, and optionally after the winding of further turns, thereby forming at least one support turn.

Abstract: A conductor for a coil of a rotating electrical machine that includes a conductor wire bundle formed by gathering a plurality of conductor wires and a flexible insulating covering material that covers a periphery of the conductor wire bundle. The conductor has an intra-covering gap formed inward of the insulating covering material in a radial direction so that the conductor wires can move relative to each other in the intra-covering gap, and a cross-sectional shape of the insulating covering material along a perpendicular plane that is perpendicular to an extending direction in which the conductor wire bundle extends can be deformed.

Abstract: A stator of a rotating electrical machine includes a stator core which is annular in shape, a plurality of stator coil groups constituting a plurality of phases, each-phase stator coil group being wound on the stator core and including a plurality of unit coils connected to each other, and a plurality of pieces of interphase insulation paper for insulation of coils belonging to different phases, disposed between coil ends of the unit coils belonging to different phases at both axial ends of the stator core, the interphase insulation paper pieces having ends which are inserted between the coil ends of the unit coils belonging to an identical phase, respectively.

Abstract: Provided is a segmented armature motor, which includes a plurality of armature coils which enclose a rotor having a rotary shaft, an armature which houses the armature coil and which is coupled in a segmented form, a motor frame which is coupled to the armature so as to enclose the armature, and motor covers coupled to the front and rear faces of the motor frame. The segmented armature motor is formed so that the armature coils completely enclose a pole portion of the rotor and are formed into a horseshoe shape or U shape, thereby minimizing magnetic losses of the armature and of the rotor.

Abstract: Disclosed are foil coil structures and methods for winding the same for stators in electrodynamic machines, as well as electrodynamic machines that implement such coil structures. In one embodiment, a foil coil structure is configured for implementation with a field pole member having pole faces that confront, for example, conical magnets.

Abstract: A stator for an electric motor includes a stator coil including a wire pair with respective ends that are joined with a ring. The ring is positioned around the wire pair and joined to the wire pair by a metal joining process.

Abstract: In this winding structure for a rectangular wire, a coil is formed that is provided with: a core that forms a core main body; a teeth portion that is formed extending inwards in a radial direction from the core; and a jaw portion that is formed extending in a circumferential direction from a distal end on the inner side in the radial direction of the teeth portion, and in which a rectangular wire is wound in multiple layers around a slot that is formed surrounded by the teeth portion, the core, and the jaw portion. The ellipticity, which is a ratio of a width dimension relative to a thickness dimension of a cross-section of the rectangular wire, becomes larger as it is wound from inner layers of the coil towards outer layers thereof, and the ellipticity of the rectangular wire in each of the layers is set in accordance with the width dimension of the slot in each layer of the coil such that the generation of gaps between the slot and the rectangular wire is suppressed.

Abstract: An electrical conductor provided with an electrical insulation system surrounding the conductor, the insulation includes a first insulation layer surrounding the conductor and a second insulation layer surrounding the first insulation layer. The second insulation layer includes a second polymer and a second filler in the form of chromium oxide (Cr2O3), iron oxide (Fe2O3), or a mixture of chromium oxide and iron oxide, wherein the first insulation layer includes a first polymer and a first filler including dispersed nanoparticles.

Abstract: To provide a stator capable of achieving downsizing and high output power and a stator manufacturing method, a stator comprises a split stator core and slots formed between the teeth, and protrusion-formed coils each being made of a flat rectangular conductor and placed in the slots. Each protrusion-formed coil has a shape including, in a coil end portion, a lead-side protrusion or a non-lead-side protrusion formed to protrude upward in an axial direction of the stator core from a first oblique side portion, a second oblique side portion, a third oblique side portion, and a fourth oblique side portion, and a first oblique side portion, a second oblique side portion, a third oblique side portion, and a fourth oblique side portion. The lead-side protrusion or the non-lead-side protrusion is designed with a height to avoid interference between the protrusion-formed coils placed in the stator core.

Abstract: A wiring assembly having a conductor positioned about an axis in a helical-like configuration to provide a repetitive pattern which rotates around the axis. In one embodiment, when a current passes through the conductor, a magnetic field having an orientation orthogonal to the axis changes direction as a function of position along the axis.

Abstract: A conductor is provided for an electric machine having an axis, a radial direction extending outward from the axis, and a tangential direction perpendicular to the radial direction. The conductor includes a solid core, having radial faces substantially perpendicular to the radial direction of the electric machine and tangential faces substantially perpendicular to the tangential direction of the electric machine. At least one tangential depression is formed on at least one of the tangential faces. The tangential depression creates a tangential void within a rectangular envelope defined by the solid core. Therefore, the surface area of the solid core is greater than the surface area of the rectangular envelope.

Abstract: A DC motor includes a rotor, a cup-shaped stator, and a drive control unit. The cup-shaped stator includes a cylindrical winding portion surrounding the rotor. The cylindrical winding portion includes an inner periphery formed by at least one conductive wire and facing an outer periphery of a permanent magnet of the rotor with an air gap formed between the cylindrical winding portion and the rotor. A drive control unit is electrically connected to the cylindrical winding portion and a power source. The DC motor can be mounted in a compartment of a housing, and an impeller can be coupled to the shaft, forming a DC fan. The DC motor and the DC fan possess high control sensitivity and high control precision while having simplified structures to allow easy assembly.

Abstract: Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to achieve increased efficiency, increased output torque, and/or reduced operating losses via use of extended magnets, overhung rotors, and/or stator tooth overlap. Extended magnets may reduce flux leakage between adjacent flux concentrators. Overhung rotors may reduce flux leakage, and may also facilitate voltage balancing in polyphase devices. Stator tooth overlap may reduce hysteresis losses, for example losses in flux concentrating portions of an electrical machine.

Abstract: A motor stator includes a stator unit and at least one auxiliary unit. The stator unit includes a circuit substrate, and a plurality of spaced-apart induction coils embedded within the circuit substrate. The auxiliary unit includes an auxiliary coil attached to and disposed outwardly of the circuit substrate.

Abstract: A disk motor including: a coil disk to which a coil pattern is formed; an electric current supply part configured to supply electric current to the coil pattern; a magnetic flux generating part opposed to the coil pattern; and an output shaft configured to be rotated by a rotational force of the coil disk, wherein the coil disk includes a balancing area at an outer periphery side of the coil pattern.

Abstract: A high-temperature insulation assembly for use in high-temperature electrical machines and a method for forming a high-temperature insulation assembly for insulating conducting material in a high-temperature electrical machine. The assembly includes a polymeric film and at least one ceramic coating disposed on the polymeric film. The polymeric film is disposed over conductive wiring or used as a conductor winding insulator for phase separation and slot liner.

Abstract: A disk motor including: a rotor including, a commutator disk including a commutator pattern, and at least one coil disk including a coil pattern; a stator including a magnetic flux generating part opposed to the coil pattern of the coil disk; an electric current supply part configured to supply electric current to the coil pattern via the commutator disk and, an output shaft configured to be rotated by a rotational force of the rotor, wherein a radiating pattern is provided to an outer periphery side of the commutator pattern of the commutator disk.