Abstract: A motor is provided that includes magnetic poles, an armature core, armature coils, a commutator, and power supply brushes. The armature core includes teeth arranged in the circumferential direction to extend in a radial pattern. The armature coils include inner layer coils and outer layer coils. Each of the inner layer coils is wound around radially proximal end portions of two circumferentially adjacent teeth or a radially proximal end portion of one of the teeth. The inner layer coils are arranged in the circumferential direction without overlapping each other in the radial direction. Each of the outer layer coils is wound around radially distal end portions of two circumferentially adjacent teeth by distributed winding. The outer layer coils are arranged radially outward of the inner layer coils and are arranged in the circumferential direction without overlapping each other in the radial direction.

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 bilayer magnetic electric motor comprises a rotor and a stator. The rotor has a casing and an iron ring provided in the casing. The internal and external surfaces of the iron ring are respectively disposed with a plurality of circularly arranged first and second magnets. The stator is located in and axially connected to the casing and includes a plurality of internal stator coil sets and a plurality of external stator coil sets that are respectively arranged in a circular array. Accordingly, when the stator is combined with the rotor, the iron ring and the first and second magnets are located in a circular space between the internal and external stator coil sets, and the first and second magnets respectively correspond to the internal and external stator coil sets. Consequently, the output power is increased when the rotor rotates and the size of the electric motor is also decreased.

Abstract: A method of manufacturing a coil assembly unit comprises steps of coil forming, weaving, compressing steps. In the forming step, each coil wire is formed which provides linear portions and turn portions each connecting linear portions, during which bent portions are formed at both ends of each linear portion, the bent portions being bent so that mutually adjacent linear portions are deviated from each other. In the weaving step, the coil wires are mutually woven in turn, in which the turn portions intersect in turn. All the coil wires are subjected to the weaving step in turn to produce a woven coil assembly. In the compressing step, the woven coil assembly is compressed by compressing the woven coil so that each bent portion is deformed to be linear to allow the mutually adjacent linear portions to come closer to each other, thus producing the coil assembly unit.

Abstract: A scroll compressor is more economically constructed and operated. The scroll compressor includes an orbiting scroll member, a non-orbiting scroll member, and a single phase electric motor, the single phase electric motor further includes a rotor, a stator having a plurality of slots, the stator being mounted concentrically with the rotor, an aluminum start winding that is wound within a portion of the slots distal from the rotor, a copper main winding that is wound with a portion of the slots between the aluminum start winding and the rotor, and a drive shaft coupled to the rotor, the drive shaft being configured to couple to the orbiting scroll member of a scroll compressor to cause the orbiting scroll member to orbit the non-orbiting scroll member.

Abstract: A permanent magnet machine (PMM) comprises: a generally cylindrical permanent magnet (PM) rotor that comprises multiple PM rotor poles arranged around a rotor axis of rotation; and a stator with two generally cylindrical and concentric yokes, an inner yoke proximate the PM rotor with associated multiple inner poles and inner armature windings suitable for multiphase alternating current operation that form a PMM magnetic flux circuit, an outer yoke with associated multiple outer poles and outer control windings suitable for connection to a direct current source, with distal ends of the outer poles in contact with the inner yoke to form an external magnetic flux circuit that diverts magnetic flux from the PMM magnetic flux circuit; wherein application of increasing direct current to the outer windings results in increased magnetic reluctance of the external magnetic flux circuit, thereby causing the external magnetic flux circuit to divert less magnetic flux from the PMM magnetic flux circuit.

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: The present invention relates to cylindrical rotating electric machines which comprise armature and field coils, with either the field coil or the dual armature being the rotating component. The dual armature is composed of two concentric cylindrical sets of coils with the field coil situated in the gap between the inner and outer armature sections. Relative rotational motion between the field and armature coils can be achieved by having either one be the rotor. By using two armature coil sections, one inside the field coil aperture and the other external to the field coil, the flux linkage between the armature and superconducting field coil can be approximately doubled. This is a more efficient use of the superconductor. The increased flux linkage in the invented technology produces a substantially higher power density than can be obtained with current conventional superconducting machine technology.

Abstract: The present invention relates to a method and system for a more efficient and dynamic waste heat recovery system in an automobile. The present invention includes a heat exchanger connected to a generator. The heat exchanger includes variable pitch impellers attached to and rotating a shaft. The pitch of the impellers can be dynamically varied and the impellers can also be staggered. The generator includes a rotor connected to the shaft. The rotor rotates within a stator when the shaft rotates. The stator includes windings with different thicknesses and different turn ratios allowing for generation of different energy levels by each of the windings. Each of the windings can be dynamically activated. The pitch of the impellers can be dynamically altered and the windings can be dynamically activated depending on energy requirements of an energy storage unit and/or accessories in the automobile.

Abstract: There is provided a 3-phase 2-layer armature winding of a rotating electrical machine. The lead-out connection conductor connected to the output terminal is connected to a coil piece positioned at least farther than a first coil piece inside the phase belt counted from the end of the each phase belt, and a coil piece positioned at the end of the phase belt is connected to a coil piece positioned at least farther than the n-th (n is an integer larger than 1) inside the phase belt counted from the other end of the phase belt in the same parallel circuit, by a jumper wire.

Abstract: Disclosed are a motor for a compressor and a hermetic compressor having the same. An aluminum coil cheaper than a copper coil is used in the motor for the compressor, a ratio between the aluminum coil and a stator core is set, and sectional areas of main and sub slot portions of the stator core and the numbers thereof are adjusted to be suitable for usage conditions, whereby fabricating costs of the motor for the compressor and the hermetic compressor can drastically be reduced and efficiencies thereof can be improved.

Abstract: A method for manufacturing an armature including securing a core to the shaft having a plurality of slots extending in the axial direction formed on the outer circumferential surface thereof, forming a coil composed of a plurality of coil portions by simultaneously winding wires a plurality of turns around a pair of slots separated by a predetermined number of slots and offsetting each of the coil portions one slot at a time in the circumferential direction of the core, securing a commutator to the shaft having a plurality of segments, adjacent coil portions having a slot along one side thereof, wherein a number of vacant slots between adjacent ones of the coil portions within each of simultaneously-wound coil portion groups is nonuniform, and electronically connecting segments which should have the same electric potential by means of equalizing connectors so that each of pairs of the coil portions that should have the same electric potential has a substantially equal electric potential.

Abstract: For mutually cross-interlocked multiple asynchronous AC induction electrical machines of the present invention, wherein the applicable operating characteristic curves of the asynchronous AC induction electrical machines include the asynchronous AC induction electrical machine of various operating characteristics, wherein when they are provided for the individual operation in different loading conditions, it is characterized that the cross interlocked electrical machine can be used to increase or decrease the rotational speed of the individual operation.

Abstract: An X-watt Power Motor is an electric motor combined with an electricity generator that uses the motion created by the motor to generate electricity and uses the electricity from the generator to power the motor. The motor functionality replaces electromagnets with electrical transformers which are named transformer magnets. Electricity generated from common electricity collector coils in a multi-chambered motor can be combined and sent to the corresponding transformer magnet of a single chamber. The equivilent combined electrical current can then be passed to all of the common transformer magnets in every chamber and then out of the motor. The result is that each transformer magnet will receive an electrical charge that is equal to the number of chambers in the motor multiplied by the electricity generated from a single electricity collector coil. These factors combine to create a powerful electric motor that only requires electricity to be started and outputs electricity while running.

Abstract: A dynamoelectric machine includes: a rotor that has 2 n field poles, where n is a positive integer; and a stator including: a stator core in which 2 n×6 slots that are partitioned by adjacent teeth are formed at a predetermined pitch circumferentially; and first and second three-phase alternating-current windings that are each configured by delta-connecting three phase windings that are mounted to the stator core such that an electrical angle phase difference therebetween is 120 degrees, each of the phase windings being configured by connecting in series pairs of coil winding portions that are mounted to the stator core so as to have different electrical angular phases from each other, and an electrical angle phase difference between the first and second three-phase alternating-current windings is 30 degrees.

Abstract: In a stator winding, series coils are connected in parallel. One series coil includes series-connected U phase coils that are wound oppositely in direction by turns in the order in which the coils are series-connected and that are arranged in the manner that one and the other coil sets of the U phase coils are separated in the circumferential direction of a stator core and are opposite to each other in the radial direction thereof. The other series coil includes series-connected U phase coils that are wound oppositely in direction by turns in the order in which the coils are series-connected and that are arranged in the manner that one and the other coil sets of the U phase coils are separated in the circumferential direction of the stator core and are opposite to each other in the radial direction thereof.

Abstract: Rotational electric machine stator winding arrangement characterized, inter alia, by at least one coil of each parallel circuit being discontinuous with the other coils of the corresponding circuit, and by coils configured to accept phase voltage not being adjacent coils having a point at the lowest potential of a corresponding circuit.

Abstract: In an armature, the upper and lower coil pieces in the first and third parallel circuits are located at the 1st, 4th, 6th, 7th, 10th and 12th positions, and the upper and lower coil pieces in the second and fourth parallel circuits are located at the 2nd, 3rd, 5th, 8th, 9th and 11th positions, when relative positions of the upper and lower coil pieces in one of the first and second phase belts are indicated by positions counted in a direction separating away from a center of a pole.

Abstract: An electric motor comprising a rotor having plural magnetic poles in the circumferential direction; and a stator whose teeth are disposed opposite to the periphery of the rotor, with an air gap interposed between the rotor and the stator, wherein the coil conductors are wound on the stator so that two stator magnetic poles may be formed by two coil units of a phase wound around stator teeth within the range of 360 electrical degrees subtended by the magnetic poles of the rotor; each of the two coil units forming the stator magnetic poles spans an electrical angle less than 180 electrical degrees; the two coil turns forming the two stator magnetic poles are laid out so that they may not overlap each other; and the coil conductors are so wound that the adjacent stator magnetic poles exhibit opposite magnetic polarities.

Abstract: A DC motor, has a stator housing accommodating a permanent magnet stator; a rotor, rotatably mounted confronting the stator, the rotor having a shaft, a rotor core fitted to the shaft and having laminations forming salient poles, a commutator fitted to the shaft adjacent one end of the rotor core, windings wound about poles of the rotor core and terminated on the commutator, the windings each being wound around a single pole of the rotor; and brush gear comprising brushes in sliding contact with the commutator for transferring electrical power to the windings.

Abstract: An armature includes a plurality of armature elements, wherein each of the armature elements has an armature element core that has a predetermined core length and has end faces spaced apart in a core length direction and side faces connecting the end faces, a first coil that is formed by winding a wire over the side faces and the end faces, a second coil that is formed, after forming the first coil, by winding a wire over the side faces and the end faces so that on the side faces the second coil is formed contiguously to the first coil, and an end structure member that is provided on each of the end faces, has a first-winding face and a second-winding face on which the wires of the first coil and the second coil are wound, respectively, and has a riser formed between the first-winding face and the second-winding face, the end structure member in which a vicinity of the riser on the second-winding face is positioned farther from the each of the end faces than the first-winding face.

Abstract: A total number of windings in an armature is an even number. The windings are divided into a first winding group and a second winding group. The windings of the first winding group are arranged one after another at generally equal angular intervals without overlapping with each other. The windings of the second winding group are arranged one after another at generally equal angular intervals without overlapping with each other and are wound separately from the windings of the first winding group.

Abstract: A plurality of magnetic pole bodies, provided on a stator of a steering motor, are divided into two electrically independent groups. Each group includes i) six magnetic pole bodies that are arranged in succession and ii) a corresponding number of magnetic pole bodies arranged opposing those six magnetic pole bodies. The two groups vibrate only slightly when operating normally. However, if one of the groups fails, vibration of the stator from elastic deformation in an undulating manner in the circumferential direction will increase, thereby alerting the driver of an abnormality in the steering motor. This increases the likelihood of measures being taken promptly to fix the abnormality in the steering motor, thus improving fail-safe performance.

Abstract: An armature where at least one of a first winding wire and a second winding wire is wound around slots that are opposed to all magnetic poles serving as a same magnetic pole in a predetermined winding direction so as to correspond to a predetermined winding number as a total winding number between respective slots, so that the plurality of coils are formed, and a slot from which the first winding wire is led out and a slot into which the second winding wire is led are located circumferentially at both sides of commutator segments with which the first winding wire and the second winding wire are conductive.

Abstract: An electric machine includes a plurality of magnets for generating a first magnetic field. A magnet holder retains the plurality of magnets. A first stator is disposed radially outward from the magnet holder for generating a second magnetic field. The first stator includes a plurality of stator poles separated by slots with each of the stator poles having a concentrated winding with a respective number of turns formed around each respective stator pole. A second stator is disposed radially inward from the magnet for generating a third magnetic field. The second stator has a plurality of stator poles separated by slots with each of the stator poles having a concentrated winding with a respective number of turns formed around each respective stator pole. The magnet holder and magnets retained therein are rotatable between the first stator and second stator.

Abstract: In a rotating machinery having armature windings constituted by a lot of strands, when the armature winding is constituted by four layers, a step number of the strands becomes half with respect to two layers of armature windings so as to facilitate manufacturing an armature winding of 540 degree transposition in which a transposition pitch is elongated and a circulating current loss is reduced, but since an output voltage becomes twice, for securing a voltage limit value caused by an isolation resisting force, one layer of armature windings are constituted by sub windings separated into at least two layers in a vertical direction, a transposition is independently applied to each of the sub windings, the sub windings are connected to the armature windings of the other slot while keeping an isolation of the sub winding at an armature winding end region by at least two connecting methods, and the sub winding constructs a parallel circuit by the armature windings of a plurality of slots.

Abstract: An electrical induction motor has a main winding formed with two electrical conductors having different electrical resistivities. The motor includes a stator having a structure about which a winding is formed, and the winding includes a first electrical conductor having a first end and a second end, and a second electrical conductor having a first end and a second end, the first end of the first electrical conductor and the first end of the second electrical conductor being coupled together and the second end of the first electrical conductor and the second end of the second electrical conductor being coupled together to form a parallel circuit with the first electrical conductor and the second electrical conductor, and the second electrical conductor having an electrical resistivity that is greater than an electrical resistivity of the first electrical conductor. In one embodiment, the first electrical conductor is copper and the second electrical conductor is aluminum.

Abstract: A manufacturing method of a winding assembly of a rotating electrical machine using a rotation block and a fixed block and a manufacturing apparatus used for the same. The rotation block includes a rotation surface rotatable around a rotation axis, and the fixed block includes a first surface and a second surface opposite to each other and a shaping surface. The shaping surface is formed between end parts of the first and the second surfaces, is made to have an almost semicircular shape with the rotation axis as the center, and extends along the rotation axis. Plural wire rods are simultaneously fed from the first surface of the fixed block to the rotation surface of the rotation block, and the wire rods positioned on the rotation surface are bent by rotation of the rotation block.

Abstract: An electrical induction motor has a main winding formed with two electrical conductors having different electrical resistivities. The motor includes a stator having a structure about which a winding is formed, and the winding includes a first electrical conductor having a first end and a second end, and a second electrical conductor having a first end and a second end, the first end of the first electrical conductor and the first end of the second electrical conductor being coupled together and the second end of the first electrical conductor and the second end of the second electrical conductor being coupled together to form a parallel circuit with the first electrical conductor and the second electrical conductor, and the second electrical conductor having an electrical resistivity that is greater than an electrical resistivity of the first electrical conductor. In one embodiment, the first electrical conductor is copper and the second electrical conductor is aluminum.

Abstract: The invention relates to a stator (1) for an electric drive motor having a number of stator teeth separated by grooves, wherein the stator teeth are wound by a multi-strand winding, and wherein one strand comprises several coils (5, 6), and wherein individual coils (5) each comprise multiple stator teeth, and preferably multiple stator teeth are combined at the height of their tooth necks into a collective stator tooth (4) having a tooth base (3) and multiple tooth heads (2), characterized in that two stator teeth each are combined into a collective stator tooth (4).

Abstract: Provided is a magnetic electricity generator having a coil structure capable of selectively changing output characteristics by using the same armature coil structure. In the magnetic electricity generator having armature coils and a magnet, the armature coils are configured with plural circuits of three-phase armature coils, wherein coil groups of each phase coil of the three-phase armature coils are divided into two or more coil groups, connection ports (T1 to T7, T9, T11, T13 to 22, T24, T26, and T28 to T30) are disposed to each coil group, and intermediate connection ports (T8, T10, T12, T23, T25, and T27) are disposed to one coil group in each phase coil, and wherein the connection ports and the intermediate connection ports are selectively connected with wires between the phase coils according to desired output voltage and current, so that output voltage characteristics can be adjusted according to connection scheme.

Abstract: An electric rotating machine comprising a stator core having a plurality of slots that are equally spaced on the inner surface of the stator core in the peripheral direction, a rotor that rotates inside the stator core, and an armature winding that is applied to each of the slots, wherein the armature winding is made up with a plurality of serially-connected single-turn coils that are respectively applied to the slots and the serially-connected coils of respective phases are connected in parallel.

Abstract: The invention is a compensator for minimizing circulatory current losses generated in a winding of an electric machine, the compensator comprising a frame part made of a magnetically conductive material and a winding formed in the frame part, the winding comprising at least one conductor having at least two sub-conductors; and at least one opening in said frame part. Said at least two sub-conductors extend through said at least one opening in such a way that the total current flowing through the opening is substantially zero, when a substantially equal current is led to the sub-conductors; and that at least two different sub-conductors are placed to extend through at least one opening. There is also disclosed an electric machine, the compensator being used in connection with the stator of the electric machine; and a method for forming a compensator to be used for minimizing circulatory current losses generated in a winding of an electric machine.

Abstract: A direct current drive motor with a stator core, an end insulator, and a coil winding forming a stator, and a housing, a magnetic yoke shell, and multiple magnetic tiles, forming a rotor. The magnetic yoke shell and the magnetic tiles are disposed on the housing. Multiple teeth protrude from a side wall of the stator core. A slot is formed between two adjacent teeth. The coil winding is disposed in the slot and wraps around the tooth.

Abstract: A mixer-ejector wind turbine uses an ultracapacitor system to store power from the variable generation of power by a permanent magnet generator. The system takes advantage of the MEWT area ratio, the higher velocity at the outer radius of the turbine, and the ability of the ultracapacitor system to store almost all of the input charge.

Abstract: An electric motor includes an armature core, a commutator including a plurality of commutator segments, a neck disposed between the armature core and the commutator, and a plurality of wires each connected between two adjacent commutator segments and wound around the armature core via the neck. The wires include a first wire connected between first two adjacent commutator segments and a second wire connected between second two adjacent commutator segments positioned opposite to the first two adjacent commutator segments with respect to the axis of the armature core. The first wire and the second wire extend along the neck such that they do not contact with each other.

Abstract: An electromotive machine (200, 900) comprises a rotor (230; 800; 920) and a stator (210, 220; 500; 600; 700; 910, 920). The stator (210, 220; 500; 600; 700; 910, 920) comprises a first group of primary windings (260a, 240b, 240d; 520; 640a, 640b, 650a, 650b, 660a, 660b; 930a, 930b, 933a, 933b, 937a, 937b), which are concentrated windings, arranged on a first side of the rotor (230; 800; 920) and a second group of primary windings (240a, 250a, 240c; 530; 740a, 740b, 750a, 750b, 760a, 760b; 941a, 941b, 943a, 943b, 947a, 947b) that are concentrated windings arranged on a second, opposite, side of the rotor (230; 800; 920). The primary windings of each group comprise a plurality of coils that, in use, are supplied with current and produce a magnetic field.

Abstract: The electrical machine has a stator, which comprises thirty-six slots and thirty-six teeth with an alternating sequence and a winding system (10) which is arranged at least partially in the slots and has three winding phases (34, 35, 36). The winding system (10) contains in total eighteen coil elements (11-28), which are laid in each case two slots, with the result that a slot associated with another of the coil elements (11, 12, 16, 17, 18, 22, 23, 24, 28) is located between the two slots associated with one of the coil elements (13, 14, 15, 19, 20, 21, 25, 26, 27). In each case two of the coil elements (11-28) form one of nine interwound groups of coil elements (29), wherein, of the four adjacent slots belonging to a group of coil elements (29), the first and the third slot are associated with one coil element (13, 14, 15, 19, 20, 21, 25, 26, 27), and the second and the fourth slot are associated with the other coil element (11, 12, 16, 17, 18, 22, 23, 24, 28) in this group of coil elements (29).

Abstract: In a rotary electric machine, a first group of first and second sets of three-phase windings of a stator coil is disposed in part of substantially circumferentially spaced slots of a stator core, and a second group of third and fourth sets of three-phase windings of the stator coil is disposed in another part of the slots. The first to fourth sets include first to fourth three-phase windings, respectively. Output ends of the first to fourth three-phase windings and input ends of the second and fourth windings are disposed at one of opposing end surface sides of the stator core. The output ends of the first and second three-phase windings of the first and second sets included in the first group are separated from the output ends of the third and fourth three-phase windings of the third and fourth sets included in the second group.

Abstract: A PM machine is provided. The PM machine includes a stator including a stator core, wherein the stator core defines multiple step-shaped stator slots. The stator includes multiple fractional-slot concentrated windings wound within the step-shaped stator slots. The stator also includes at least one slot wedge configured to close an opening of a respective one of the step-shaped stator slots, wherein the slot wedge is further configured to adjust the leakage inductance in the PM machine. The PM machine also includes a rotor having a rotor core and disposed outside and concentric with the stator, wherein the rotor core includes a laminated back iron structure disposed around multiple axially-segmented magnets.

Abstract: This invention presents a highly efficient electric motor which can he embodied in several configurations, including a standard motor, a hub motor, a linear motor, or other motor configuration. As a regenerative device, the motor may also act as a part-time or full-time electrical generator. There is provided a motor composed of a stator and a rotor. The stator has an array of coils arranged therein. The rotor has an array of magnets arranged therein. Each of the coils includes a first winding of wire wrapped around a core, and the wire has a non-circular cross-section. The wire can be a flattened wire.

Abstract: A motor stator includes a silicon steel seat wound with six sets of starting coils and six sets of operating coils formed with resistance enameled coils. The six sets of starting coils are respectively made of the resistance enameled coils in directions respectively of getting in a first notch and out a fifth notch of the silicon steel seat, getting in a second notch and out a sixth notch, getting in a third notch and out a seventh notch, getting in an eleventh notch and out a seventh notch, getting in a twelfth notch and out an eighth notch, and getting in a first notch and out a ninth notch. And the six sets of operating coils are respectively composed of the resistance enameled coils in directions respectively different from the winding directions of the six sets of starting coils, able to quickly and evenly complete winding work.

Abstract: A type-A winding represented by a triangle of solid lines is connected to commutator segments such that its one end is connected to an arbitrary commutator segment and its other end is connected to a commutator segment adjacent to the arbitrary commutator segment. A type-B winding represented by a diamond of broken lines is connected to commutator segments such that its one end is connected to a commutator segment located radially opposite to a usual adjacent commutator segment. The type-A windings and the type-B windings are used in combination. One short circuit wire is used for every short circuit connection of radially opposed commutator segments. A total number of the short circuit wires is half (5) the number (10) of commutator segments. Thus, the number of electric wires hooked at every commutator segment can be reduced to two or less. Also, continuous winding by use of one or two wires is possible.

Abstract: A stator winding has series coils and the series coils are connected in parallel. One of the series coil includes series-connected U phase coils and the other series coil includes series-connected U phase coils. A part of a wire connecting U phase coils of that one series coil is wound around the same teeth as those around which one of the U phase coils of the other series coil is wound, so as to form a U phase coil. A part of a wire connecting U phase coils of the other series coil is wound around the same teeth as those around which one of the phase coils of that one series coil is wound, so as to form a U phase coil.

Abstract: In this stator, first and second U-phase loop windings and first and second W-phase loop windings are short-pitch wave windings, and the width in the circumferential direction of the slot between the U and V-phases in which the loop windings are disposed and the slot between the V and W-phases in which the loop windings are disposed is set to a value that is ½ the width in the circumferential direction of the slot between the W and U-phases in which the loop windings are disposed. The ratio of the first winding turns number of the loop windings and the second winding turns number of the loop windings is set so that when having added the induced voltages by the loop windings or having added the induced voltages by the loop windings in the slots, the phase difference of the induced voltages obtained by addition is 120 electrical degrees.

Abstract: An automotive drive system and methods for making the same are provided. The system includes a three-phase motor and an inverter module. The three-phase motor includes a first set of windings each having a first magnetic polarity; and a second set of windings each having a second magnetic polarity that is opposite the first magnetic polarity. The first set of windings being electrically isolated from the second set of windings. The inverter module includes a first set of phase legs and a second set of phase legs. Each one of the first set of phase legs is coupled to a corresponding phase of the first set of windings, and each one of the second set of phase legs is coupled to a corresponding phase of the second set of windings.

Abstract: In one aspect, a stator is provided having a first cylindrical surface with a plurality circumferentially spaced winding slots, each winding slot extending along an axial length of the first cylindrical surface and formed to embed a segment of a single stator winding, Each stator winding is preformed as a closed loop and two substantially parallel segments of each stator winding formed to be embedded in a first and a second winding slot of the stator, with the second winding slot being the third adjacent winding slot to the first winding slot. Each of the three stator windings has a first winding head segment leaving the winding slots in axial direction of the stator, the first winding head segment of a first winding of the three stator windings describing in space in parts a combination of a rotation about an axis and a translation along that axis.

Abstract: A group of three stator windings for a stator of an electric machine, a stator arrangement, a generator, and wind turbine are provided. The first winding head segments of the three stator windings differ in form such that the first winding head segments of at least two of the three stator windings are differently tilted in radial direction of the electric machine and the length of the three stator windings is substantially the same.

Abstract: In an armature of a motor, each of windings is wound around at least two of a plurality of tooth portions of a core to form at least two wound parts of the winding. A crossover of each winding, which connects between corresponding two of the at least two wound parts, is placed on one axial side of a ring portion of the core. A crossover relief space is axially recessed in an end surface of the ring portion on the one axial side. At least a portion of each crossover is received in the crossover relief space. Guides project on the other axial side of the core and guide winding terminal portions of the windings.

Abstract: The present disclosure describes an endcap assembly for a stator of an electric motor having a stator winding. The endcap assembly has a dielectric material, and a plurality of connection paths each being supported by the dielectric material and each intervening between each turn of the stator winding wherein the connection paths are configured to communicate with each terminal end of a stator conductor. A method of making a stator is also provided.