Abstract: A stator core suspension system includes a spring bar(s) coupled to a stator core and a frame for vibrationally isolating the stator core from the frame. A longitudinal axis of the spring bar is positioned in a plane extending substantially perpendicular to an axis of the stator core. The stator core suspension system can be arranged in modular suspension sections for selective assembly into a related dynamoelectric machine.

Abstract: Each of vibration dampers is separated from each circumferentially adjacent one of the vibration dampers upon cutting of each of a plurality of connectors, which is initially integrally formed with the vibration dampers to circumferentially join between corresponding circumferentially adjacent two of the vibration dampers to form a single closed loop body. At least a part of each of first and second circumferential end portions of each vibration damper is engaged with a corresponding one of outer protrusions of a centerpiece in a circumferential direction of a stator. A primary recess is radially inwardly recessed at an outer peripheral portion of the vibration damper and is engaged with a corresponding one of primary protrusions of the stator in the circumferential direction of the stator.

Abstract: A motor comprises a base, a stator and a rotor. The base is equipped with a shaft tube having an outer circumferential wall. The stator is coupled with the shaft tube of the base and has an assembly hole. Wherein, a plurality of close-fitting portions is formed between an inner circumferential wall of the assembly hole and the outer circumferential wall of the shaft tube, and an adjustment gap is formed between each two adjacent close-fitting portions. The rotor has a shaft rotatably coupled within the shaft tube of the base.

Abstract: The invention relates to an electric motor and a method for manufacturing an electric motor for a motor vehicle actuator drive. The electric motor has a motor housing, a rotor assembly and a stator assembly. The stator assembly has stator teeth which are each provided with a notch in the region of their tooth back. A securing pin, which secures the stator assembly in the motor housing, is inserted into each of these notches.

Abstract: A stator for an electric motor has a stator core, a winding and a housing enclosing the stator core and winding. The stator core has a yoke and a plurality of poles extending inwardly from the yoke. The winding formed by coils wound about the poles of the stator core. The housing grips the stator core and has at least one inwardly deformed portion that retains the stator core in the housing and prevents rotational movement of the stator core relative to the housing. A method of producing the stator is also disclosed.

Abstract: There is provided a motor device. A motor device according to an aspect of the invention may include: a stator including a core having a coil wound therearound; a rotor having a magnet facing the core to thereby generate an electromagnetic force involved in interactions therebetween, the rotor rotating a shaft; a sleeve supporting the shaft; and a sleeve housing having a mounting surface to support the core and a protrusion protruding from the mounting surface to prevent a rotation of the core.

Abstract: A stator includes: a plurality of divided cores disposed to have a ring shape; a stator winding toroidally wound on the stator; and a holding member that holds the divided cores in the ring shape. Each of the divided cores includes: a bobbin part for the stator winding; a yoke extending from the bobbin part in the circumferential direction; a connection part extending from the yoke outwardly in a radial direction with a connection face that is connected to the holding member; and a tooth extending from the yoke inwardly. The connection part has a magnetic gap to increase a magnetic resistance in a path of magnetic flux, generated by the stator winding, leaked to the holding member through the connection face. The magnetic gap is a notch or a weld.

Abstract: In order to provide a magnetic pole-piece having good immunity to eddy currents whilst providing a high torque rating there is provided a magnetic pole-piece (60) comprising a magnetic part (64) and a retaining part (62), wherein the retaining part (62) supports the magnetic part (64).

Abstract: A pole piece support comprising a frame having a spaced array of non-magnetic support structures, wherein disposed between at least a pair of adjacent non-magnetic support structures is a magnetic pole piece supported along at least a portion of its body by the adjacent non-magnetic support structures.

Abstract: The invention concerns a direct drive or directly driven generator for a wind turbine comprising a stator and a rotor, wherein the stator comprises a stator ring comprising several ring-segment-shaped stator segments each having at least one stator element for the power generation and wherein the rotor comprises a rotor ring pivotable around a centre axis of the generator, the rotor ring comprises several ring-segment-shaped rotor segments each having at least one rotor element for the power generation. Furthermore the invention concerns a wind turbine comprising such a direct drive generator.

Abstract: A laminated spiral core includes core units and a plurality of swage portions. The core units form a rotor core. The core units have permanent-magnet attachment portions in which permanent magnets are to be disposed. Each of the core units has an arc shape. The plurality of swage portions connect the core units by swage-joining when the core units are spirally stacked in a predetermined number of layers. The plurality of swage portions are provided in the core units in a wave-shape to face the permanent-magnet attachment portions and provided at positions where an influence of magnetic flux paths in a rotor is minimal.

Abstract: A motor includes a housing, a rotor and a stator. The housing includes a shaft tube having a free end. The rotor includes a shaft rotatably extending through the bearing and having an annular groove. The stator includes an assembling hole receiving the shaft tube. The stator includes an upper bobbin, a lower bobbin, a plurality of silicon steel plates and a winding. The upper bobbin includes a plurality of pressing plates annularly, each having first and second abutting portions. The first abutting portion has a first end connecting to the upper bobbin, and a second end abutting against a top surface of the bearing. The free end is lower than the first end but higher than the second end. The first abutting portion is spaced from the shaft tube and abuts only on the bearing. The second abutting portion extends from the first abutting portion into the annular groove.

Abstract: A stator includes an annular core back portion, a plurality of teeth extending radially outward from an outer circumference of the core back portion, and coils. A cylindrical portion of a housing includes a contact portion and a coming-off preventing portion arranged above the contact portion on an outer circumference of the cylindrical portion. The core back portion includes a small-diameter opening defining portion and a large-diameter opening defining portion arranged above the small-diameter opening defining portion. The cylindrical portion is arranged radially inward of the core back portion. The stator is held by the cylindrical portion with a lower surface of the core back portion arranged in contact with the contact portion and an upper surface of the small-diameter opening defining portion arranged in contact with the coming-off preventing portion. A bearing member is arranged radially inside the large-diameter opening defining portion and above the coming-off preventing portion.

Abstract: An electric machine (1) comprises; a casing; a stator (3) fixed to the casing and including at least one electrical winding (5); a rotor (4) housed in the casing and rotatably connected to the latter; an electronic circuit (8) for powering the winding (5) at least partly housed in the casing; a cover (2a) for closing the casing to form with the latter a sealed enclosure; a terminal strip (9), accessible from outside the sealed enclosure, for controlling and powering the electronic circuit (8); a heat sink, embodied by the cover (2a), for absorbing the heat produced, in particular, by the electronic circuit (8). The machine (1) also comprises elastic elements (12) operating between the stator (3) and the electronic circuit (8) in such a way as to press the electronic circuit (8) against the heat sink.

Abstract: In one embodiment, a system includes a stator mounting kit that includes multiple radial adjustment shims having different thicknesses from one another. The stator mounting kit also includes multiple stator alignment adapters having different circumferential alignments between a keybar mount and a spring bar mount. The stator mounting kit is configured to enable radial and circumferential alignment between each spring bar and respective keybar in a stator framework via selection of one of the stator alignment adapters and selection of one or more of the radial adjustment shims.

Abstract: In one embodiment, a system includes a generator frame that includes a spring ring configured to mount removably between an outer annular support and a stator. The spring ring includes a first guide configured to circumferentially align the spring ring to the outer annular support, and a second guide configured to circumferentially align the spring ring to the stator.

Abstract: The present invention can achieve a highly efficient permanent-magnet synchronous motor that can obtain output in a high-speed area without prolonging the axis of the permanent-magnet synchronous motor. The present invention provides a highly efficient permanent-magnet synchronous motor that can obtain output in a high-speed area without prolonging the axis of the permanent-magnet synchronous motor, in which stator magnetic poles are formed by dividing a magnetic pole in each phase into a plurality of parts and placing them in a circumferential direction with respect to a rotational axis, at least one divided stator magnetic pole being made movable in the circumferential direction with respect to the rotational axis, and the phase of the movable stator is controlled.

Abstract: The present invention relates to a stator of an electric motor and a washing machine having the same, wherein the stator includes a stator core of a stack of bases each with a plurality of poles, an insulator having an upper insulator and a lower insulator fastened to the stator core, a plurality of fastening portions each having a fastening hole for fastening the stator, and a plurality of connection portions each having a plurality of vertical ribs for connecting the insulator to each of the fastening portions, wherein the insulator, the fastening portions, and the connection portions are injection molded as one unit, with the stator core inserted thereto.

Abstract: An object is to enable simple manufacture of a motor, especially, a stator core or a field without impairment of motor characteristics. The motor includes a shaft, a rotor fixed to the shaft, and a stator including a stator core that faces the rotor with a certain space therebetween and coils that are attached to the stator core. The stator includes a back yoke, and the stator core having a plurality of teeth that are circumferentially placed in an axial end face of the back yoke so as to stand upright axially of the back yoke, and that are formed of a dust core made of pressed magnetic powder. The above-mentioned teeth are buried axially to a certain depth in the back yoke.

Abstract: Provided is a slim type stator that is used to make a BLDC (Brushless Direct-Current) motor having a stator of a division core structure and a double rotor for use in a drum-washing machine, a slim type motor having the same, and a direct drive apparatus for use in the drum-washing machine.

Abstract: A electric motor has a stator and a rotor. The stator comprises a housing and a plurality of magnets fixed to an inner surface of said housing by a frame member. The magnets are embedded in the frame member. A plurality of first grooves are formed in an outside peripheral surface of the frame member, each of said first grooves extending axially from one axial surface of said frame member and having a axial length smaller than the axial height of said frame member. The housing has a plurality of first anchors formed on its inner surface, each of the first anchors engaging with a corresponding one of the first grooves.

Abstract: A synchronous motor includes multiple coil segments, each of which has an iron core in the form of a core stack that is wound with a coil. The coil segments are characterized in that the coils press fastening elements having at least two legs against two opposite surfaces of the substantially right parallelepiped iron core. In each case, at least one leg of the fastening element abutting against the iron core is pressed against the iron core, and at least one free leg of the fastening element projects away from the iron core. The free legs are fastened to connecting elements that connect multiple coil segments to one another.

Abstract: A motor includes a rotor having a permanent magnet fitted thereon, and a stator having an inner peripheral surface spaced a predetermined distance from an outer peripheral surface of the rotor in opposed relation thereto, and the stator is press-fitted in a motor case to be fixed thereto with its outer peripheral surface. A plurality of projecting portions are formed on an inner peripheral surface of the motor case. Recess portions for engagement with the respective projecting portions are formed in the outer peripheral surface of the stator. When the stator is press-fitted into the motor case, the stator is fixed to the motor case with inner bottom surfaces of the recess portions serving as press-fitting surfaces. The projecting portions of the motor case are engaged respectively in the recess portions of the stator, thereby preventing the rotation of the stator relative to the motor case.

Abstract: A core comprises a plurality of core split members having yoke portions and tooth portions and arranged in such a circumferential shape that the yoke portions contact with each other while the tooth portions being directed inward. The core further comprises a ring contacting with the yoke portions, and stoppers mounted on the outer face sides of the yoke portions for fixing the ring on the yoke portions. The yoke portions and the ring are formed in corrugated shape to mesh with each other, and the stoppers are formed with projections that engage with the inner side of the ring. This structure provides both the rotating electrical machine core having the core split members arranged in the circumferential shape and fastened to each other while preventing occurrence of a stress and a positional displacement between the core split members, and a rotating electrical machine.

Abstract: A pump assembly with an electric motor includes a stator having an iron core (16) and windings arranged thereon and being arranged in a stator housing surrounding the electric motor to the outside. The stator housing (6) is formed as a cast component, into which the iron core (16) is cast, and the windings have been deposited on the iron core (16) after the casting of the iron core (16) into the stator housing (6).

Abstract: A combined motor-battery system comprising an electric power source adapted to convert self-originating electrical current to mechanical power utilizing a set of common functional structures. Preferred embodiments include an electrochemical cell comprising field reactive electrodes that directly produce extractable mechanical forces in the presence of a magnetic field.

Abstract: A stator arrangement of an electric machine, particularly a generator in a wind turbine is provided. The stator arrangement is radially surrounded by a rotatably mounted rotor arrangement. During normal operation the stator arrangement is non-rotatably connected to a stationary part of the generator. The stator arrangement may be released from the non-rotatable connection to the stationary part of the generator so as to be revolved relative to the stationary part of the generator.

Abstract: Stacking more than one electric machine module (i.e., electromagnetic electric motor or generator system) with all stator bodies commonly attached and all moving bodies commonly attached increases the overall power of the stack according to the sum of power rating of each module in the stack. A keying object means comprises complementary keys on the stator and rotor bodies that allow easy mating alignment of at least two autonomous electric machine modules in the stack and preserve the mechanical integrity so all modules in the stack move or act as one large electric machine. Furthermore as an integral component in the manufacturing process of the electric machine module, the keying object means serves as an alignment mechanism for precision manufacture of the module chassis without precision methods, such as precision machining, or precision materials, or precision pieces, such as castings.

Abstract: A stator includes: a plurality of divided cores disposed to have a ring shape; a stator winding troidally wound on the stator; and a holding member that holds the divided cores in the ring shape. Each of the divided cores includes: a bobbin part for the stator winding; a yoke extending from the bobbin part in the circumferential direction; a connection part extending from the yoke outwardly in a radial direction with a connection face that is connected to the holding member; and a tooth extending from the yoke inwardly. The connection part has a magnetic gap to increase a magnetic resistance in a path of magnetic flux, generated by the stator winding, leaked to the holding member through the connection face. The magnetic gap is a notch or a weld.

Abstract: A stator arrangement of an electric machine, generator, and wind turbine includes a plurality of stator segments forming substantially the stator of the electric machine in a cylindric form around a radially centered shaft. The stator arrangement is radially surrounded by a rotatably mounted rotor arrangement. The stator segments are radially mounted on an outer surface of a support structure. The support structure is fixed via rigid connections to the shaft.

Abstract: In a stator winding method for winding conductive wires 8 around teeth 4a to 4f of a stator core 4 having 3n teeth 4a to 4f and 3n slots 5a to 5f by use of a bobbin machine 12 having three nozzles 13, the slots 5a to 5f on both sides of the teeth 4a, 4d, 4f in the nth winding process are formed, in respective slot portions on the side of the teeth 4a, 4d, 4f in the nth winding process, so that respective depths “A” are all smaller than respective depths “B” of the remaining portions. At the final stage of the nth winding process, the nozzles 13 are moved from the interior side of the slots 5a to 5f toward the inner circumferential side of the stator core 3 and furthermore, the conductive wires 8 are wound around the teeth 4b, 4d, 4f so that each gap 14 between the conductive wires 8 wound around the teeth 4b, 4d, 4f and the conductive wires 8 wound around the teeth 4a, 4c, 4e is smaller than an outer diameter of the nozzle 13.

Abstract: The invention relates to an electric motor and a method for manufacturing an electric motor for a motor vehicle actuator drive. The electric motor has a motor housing, a rotor assembly and a stator assembly. The stator assembly has stator teeth which are each provided with a notch in the region of their tooth back. A securing pin, which secures the stator assembly in the motor housing, is inserted into each of these notches.

Abstract: A stator of a twin rotor motor includes: an annular yoke; a plurality of outer teeth and outer slots provided on an outer circumference of the yoke; a plurality of inner teeth and inner slots provided on an inner circumference of the yoke; and a plurality of toroidally-wound coils on the yoke. A rotor of the twin rotor motor includes: an outer rotor provided with an outer permanent magnet facing the outer teeth; and an inner rotor provided with an inner permanent magnet facing the inner teeth. Furthermore, the stator is provided with a resin mold that seals the coils and has a mounting-tab.

Abstract: The present invention has an object to propose a method of producing a rotor, capable of reliably fixing a magnet to a rotor core with resin and preventing breakage of the rotor core. The present invention includes a step of fixing a permanent magnet to a rotor core by injecting molten resin into a slot by injection molding on the condition that, assuming that: a dimension between an end surface of the rotor core and an end surface of the permanent magnet is a core end surface-magnet interval; and a minimum value of a dimension between an inner surface of the slot and a side surface of the permanent magnet, allowing the molten resin to fully fill a clearance between the inner surface of the slot and the side surface of the permanent magnet by injecting the resin into the slot through a cylinder, is a minimum slot-magnet interval value, and a value of the core end surface-magnet interval is equal to or larger than the minimum slot-magnet interval value.