Abstract: A method of manufacturing a laminated stator core includes: forming a band-shaped yoke core sub-piece having a shape that an outer half is developed in a straight line when a yoke portion of the laminated stator core is divided into two halves in the width direction by punching a metal plate; forming an outer laminated yoke body by winding and laminating the band-shaped yoke core sub-piece in a spiral shape and coupling it in a caulking manner; forming an inner yoke-attachment magnetic core sub-piece having an inner yoke sub-portion obtained by dividing the inner half in a unit of magnetic poles when the yoke portion of the laminated stator core is divided into two halves in the width direction, by punching a metal plate; forming an inner yoke-attachment laminated magnetic sub-body by laminating and coupling a predetermined number of the inner yoke-attachment magnetic core sub-pieces to each other in a caulking manner; forming an intermediate assembly in which the inner yoke sub-portions form a ring shape by

Abstract: A mold houses a least one cutting die that defines a die axis. The mold has at least one punch aligned with the die axis and movable in a reciprocating manner that cooperates with the at least one cutting die to cut the laminate into the laminations by carrying out cutting steps. The mold has a centering device within the mold that locks the at least one cutting die into a desired position prior to each of the cutting steps. A punching movement of the at least one punch is coordinated with a feeding movement of the laminate to a location within the mold that is interposed between the at least one punch and the cutting die.

Abstract: A rotor attachment apparatus for attaching a rotor of a motor coaxially to a crankshaft by inserting the rotor into a rotor housing that is attached to an engine, including: a rotor support member; rotor positioning members that engage some of a plurality of bolt insertion holes provided in the rotor, to thereby position the rotor; a temporary fixation bolt that temporarily fixes the rotor on the rotor support member; a drive shaft a tip portion of which is engaged with a shaft end portion of the crankshaft, and which supports the rotor support member movably in an axis direction via a screw mechanism; a base member that moves the rotor support member toward and away from the rotor while rotatably supporting a base end of the drive shaft; base positioning members that engage the rotor housing; and a fastening mechanism which engages a head of a coupling bolt inserted into at least one of the bolt insertion holes, and which is supported by the rotor support member so as to bias the coupling bolt toward the rot

Abstract: An apparatus for loading stator windings into a stator core includes an arbor member including a body having a central axis and an outer diametric portion provided with a plurality of slots. An insertion element is rotatably mounted adjacent the arbor member. The insertion element includes a plurality of slot elements that are configured to register with the plurality of slots. A loading member is rotatably mounted adjacent the insertion element. The loading member includes a plurality of slot members that are configured to register with the plurality of slot elements. The loading member is selectively operated to receive a stator winding into one of the plurality of slot members and transfer the stator winding into one of the plurality of slot elements. The at least one insertion element is selectively operated to transfer the stator winding into one of the plurality of slots of the arbor member.

Abstract: Methods of precisely positioning a rotor of a machine into one or more service positions for the purpose of servicing the machine. In some embodiments, the machine includes A rotor and a stator segmented into multiple removable stator modules. During servicing, a stator-module replacement tool is precisely located in any one or more of multiple service positions corresponding to the multiple stator modules by selectively energizing the machine. In other embodiments, the machine includes a stator and a rotor having multiple removable permanent magnets corresponding respectively to multiple service positions. During servicing, the rotor is precisely located in any one or more of multiple service positions corresponding to the permanent magnets by selectively energizing the machine. A servicing control system is disclosed for controlling the excitation of a machine stator in a manner that effects precise positioning of the rotor into a selected service position.

Abstract: A module-handling tool for facilitating installation, servicing, and/or dismantling of a electromagnetic rotary machine, such as an electrical power generator or electric motor, having a modularized active portion. In one embodiment, module-handling tool is configured for a machine having a modularized stator having a number of removable modules. In one example of such stator-module-handling tool, the tool is designed and configured to hold a stator module and be temporarily secured to the rotor of the machine during the process of installing the stator module into the machine or removing the module from the machine. In this example, the module-handling tool also acts as a module carrier for transporting a module to or from the machine.

Abstract: During sending the combined body 47 to the core member 6, the pre-orientation members 81 are respectively inserted into a plurality of the consecutive clearances 472 of a plurality of the clearances 472 formed between the adjacent straight overlap sections 471 of the combined body 47. By the pre-orientation members 81, the overlap of the straight portions 431 in the straight overlap section 471 and the pitch between the straight overlap sections 471 are aligned in advance.

Abstract: A method for producing a ring core having a plurality of separate core plates with lobes defined on an inner circumferential surface thereof, the separate core plates being arranged and stacked in a ring-shaped pattern. The method includes the steps of supporting the separate core plates with either one of an inner guide member being disposed radially inwardly of the separate core plates stacked in the ring-shaped pattern and an outer guide member disposed radially outwardly of the separate core plates, and applying a pressure from the other of the inner guide member and the outer guide member, wherein the inner guide member has recesses corresponding to the lobes for positioning and supporting the lobes, and stacking the separate core plates in the ring-shaped pattern to form the ring core, while rotating the separate core plates in unison through a predetermined angle with the inner and outer guide members.

Abstract: A winding device for producing a field coil including a double-layer multiple-circuit winding for an electric motor includes a drive. The drive is configured to operate upon a winding mandrel with multiple lamellas arranged to be swung radially outwardly and inwardly by the drive in order to produce the double-layer multiple-circuit winding as a plurality of winding stacks that are arranged in separate slots and electrically connected in series, in parallel or both. At least two axially-separated winding stacks can be produced at the same time by the drive.

Abstract: An apparatus for loading stator windings into a stator core. The apparatus includes an arbor member including a body having an outer diametric portion including a plurality of slots. The apparatus also includes a first guide track having a first end that is positioned adjacent the outer diametric portion. A second guide track includes a first end is positioned adjacent the outer diametric portion and spaced from the first end of the first guide track. The apparatus further includes a third guide track including a first end is positioned adjacent the outer diametric portion and spaced from the first end of the first guide track and the first end of the second guide track. At least one of the first, second, and third guide tracks and the arbor member is positionable to guide slot segment portions of corresponding first, second, and third stator windings into predetermined ones of the slots.

Abstract: A motor includes a core having a plurality of laminations, which are stacked together and an end-plate provided at an end surface of the core and supporting the core, wherein the end-plate is formed by pressing a hollow material in one direction thereof in order to plastically deform the hollow material in a plate-shape.

Abstract: An installation device for a gradient coil module in a magnetic resonance tomography apparatus has a loading cart that moves the gradient coil module away from and to the magnetic resonance tomography apparatus. A bearing girder having a track is fastened to the loading cart. Track rollers can be installed on the gradient coil module such that the gradient coil module can be moved relative to the loading cart by means of the track rollers resting on the track.

Abstract: An apparatus for loading stator windings into a stator core includes an arbor member including a body having an outer diametric portion and a central axis. The outer diametric potion includes a plurality of slots. The apparatus also includes a guide track having a first end that extends to a second end through a slide portion. The first end is positioned adjacent the outer diametric portion of the arbor member. At least one of the guide track and the arbor member is selectively positionable to guide slot segment portions of a stator winding into predetermined ones of the plurality of slots.

Abstract: A method for manufacturing a rotor for a generator is provided. In accordance with this method, a metal plate is rolled to a circumferentially open circular cylinder having two free ends, the circumferentially open cylinder having an inner diameter smaller than a desired end inner diameter of the rotor. The two free ends of the rolled metal plate are then welded to form a closed cylinder. The closed cylinder is rolled to obtain the desired end diameter of the rotor.

Abstract: The jig includes an upper jig part, a lower jig part, a support plate, a guide jig part, and a spring. The upper jig part has a pressure protrusion for press-fitting a rotating shaft, and applies pressing force to the rotating shaft. The lower jig part supports a rotor casing in a direction which is opposite the acting direction of the pressing force. The support plate is mounted to the lower jig part, and supports the rotor casing in a direction which is opposite that of the force for press-fitting the rotating shaft. The guide jig part supports the rotor casing in a direction which is opposite that of reaction force generated in the rotor casing by the support plate. The spring elastically biases the guide jig part towards the rotor casing.

Abstract: Some embodiments of the present disclosure provide a method of making a rotor of an electric brushless motor configured to be light weight and prevent vibrations generated during an operation of the motor to be transferred to the shaft of the rotor. The method includes providing a shaft elongated in a rotational axis, providing a single body magnet comprising alternately magnetized portions, and providing a vibration absorption portion interposed between the shaft and single body magnet. The vibration absorption portion absorbs vibrations generated during the operation of the motor and may include an elastic or a non-elastic material. The method further includes providing a non-elastic portion configured to inhibit the expansion of the vibration absorption portion when the vibration portion is elastic.

Abstract: A method of making a wound field for a brushless direct current motor, direct current generator, alternating current motor or alternating current generator, includes providing a base mold and a press mold. Next, a number of phases is determined. At least one strand of conductive material per phase is formed between the base mold and press mold into a conductive coil that has a shape that indicates the number of poles required. Each conductive coil is inserted into the stator core, and the stator core is installed into one of a brushless direct current motor, direct current generator, alternating current motor or alternating current generator.

Abstract: An object is to provide a rotor manufacturing method capable of reducing a rotor unbalance amount by controlling a magnet arrangement position in a rotor core and improving work efficiency when fixing a magnet to the rotor core by using resin. A lower surface of a rotor core is arranged in a lower mold. A magnet is arranged in a lower mold. A magnet is contained in each of magnet containing holes formed in the rotor core in such a manner that a predetermined space is assumed between an upper surface of the rotor core and an upper surface of the magnet. An upper mold is arranged on the upper surface of the rotor core. The upper mold and the lower mold apply a pressure to the rotor core and a molten resin is supplied with pressure from an internal diameter side via the predetermined space into the plurality of magnet containing holes from respective cylinder arranged in the upper mold. Thus, the magnets are molded by resin while pressing the magnets toward the outer diameter side of the magnet containing holes.

Abstract: An apparatus for producing a coil winding for stators is described, in which each coil turn rests, with one fillet (14) each, in two stator slots, and the two fillets (14) are joined by a head portion (16). A plurality of coil turns are made simultaneously by winding up n parallel wires (10) with intermediate spacing onto a rotatable former (20). To obtain small winding heads, alternatingly in a work step A, one fillet (14) and the wire length of one head portion (16) are made from each of the n parallel wires (10) on the former (20). Then in a work step B, the resultant fillets (14) together with the adjoining first end of the respective associated head portions (16), and the wire guide together with the second end of these head portions (16), are displaced relative to one another along the former (20) by n times the intermediate spacing of the wires (10).

Abstract: The present invention provides an apparatus for the horizontal stacking of laminations 10 and donuts to form a stator core. A stator generator frame 2 has multiple keybars 6 that run the axial length of the frame. The laminations 10 have grooves 12 there-in that engage the keybars to provide a secure fit of the laminations to the generator frame. By extending two or more of the keybars 6, these extensions 7 may be used as rails on which the laminations may be horizontally inserted into the stator frame.

Abstract: Stator designs have wide-mouth slots between adjacent poles. Wire coils with high slot fill conductivity are formed around the poles. In some designs, the wire coils are wave wound around the poles. Thick bar conductors can be used for making the wire coils. The wire coils may be inserted using nozzle dispensers or transferred from a pre-form mandrel. In other designs, the wire coils are pre-formed on transferable pockets that are then mounted on the poles. Optional pole extensions or shoes can be attached to the stator poles after the wire coils are formed around the poles.

Abstract: Embodiments of the invention relate generally to rotor installation systems and, more particularly, to permanent magnet rotor installation systems, including those having an in situ magnetizer or magnet insertion device. In one embodiment, the invention provides a rotor installation system comprising: at least one magnetizer for permanently magnetizing a ferromagnetic material; and an arbor for receiving a rotor having at least one portion including a ferromagnetic material, wherein the at least one magnetizer is positioned relative to the arbor to allow permanent magnetization of the ferromagnetic material.

Abstract: A method and device for wire termination on stators (1) wherein the wire (15) is wound about poles (6) distributed by a flier (10), guided by shrouds (16) that move radially with respect to the stator (1) overlapping the respective pole (6). Wire termination operations are provided on the wire ends (15) into the terminals (4) with the aid of the flier (10), carried out by an apparatus equipped with a termination device (20), comprising a first deflector (21), a second deflector (22), a blade (23), and a clamp formed by a movable gripper (24) and a fixed gripper (25). The movable gripper is suitable for closing onto the fixed gripper for gripping the wire (15). The device (20) can carry out the steps of catching, moving, introducing and cutting the wire (15) with movements parallel to its own axis (27), or to the axis (7) of the stator (1).

Abstract: The present invention provides an apparatus for the horizontal stacking of laminations 10 and donuts to form a stator core. A stator generator frame 2 has multiple keybars 6 that run the axial length of the frame. The laminations 10 have grooves 12 there-in that engage the keybars to provide a secure fit of the laminations to the generator frame. By extending two or more of the keybars 6, these extensions 7 may be used as rails on which the laminations may be horizontally inserted into the stator frame.

Abstract: An apparatus for correcting the shape of an inner surface of a stator includes a deviation sensor for measuring the shape of the inner surface of the stator fixed inside an inner surface of a housing of a rotating electric machine, a personal computer for calculating a direction of deformation and the amount of deformation of the shape of the stator inner surface based on the measured shape of the stator inner surface as well as a direction of heating and the amount of heat to be input when heating an outer side surface of the housing based on the calculated direction and amount of deformation of the shape of the stator inner surface, and a gas burner for heating the outer side surface of the housing based on the direction of heating and the amount of heat to be input calculated by the personal computer.

Abstract: A method of manufacturing a can assembly of a coreless AC linear motor is provided. The method includes the steps of providing a workpiece and gouging out material from the workpiece to form a deep groove in the workpiece. The workpiece having the deep groove forms a can. The method also includes providing a plurality of coreless coils and arranging the plurality of coreless coils in a straight line. The method also includes forming the plurality of coreless coils into a flat plate-shaped block using resin or adhesive. The flat plate-shaped block forms a coil assembly. The method also includes inserting the coil assembly into the deep groove of the can. The can assembly comprises the can and the coil assembly.

Abstract: The present invention a method and apparatus for measuring the compression of a stator core 10 that comprises attaching a measuring device 22 to a tensioner 20, placing the tensioner on an end of a through-bolt 12 of the stator core, and performing at least one act of tensioning the stator core 10 with the tensioner. Then measuring a compression state of the stator core by the measuring device registers determining the amount of relative compression achieved by the act of tensioning, the relative compression is the amount of actual compression of the core and the amount of stretch of the through-bolt. Finally determining an actual compression state of the stator core based on the measuring.

Abstract: The present invention provides a method for producing a stator assembly. The method initially includes providing an assembly mandrel having a generally cylindrical hub and a generally annular base circumscribing a terminal end portion of the hub. A first end ring and a stator shell are installed around the mandrel hub and onto the mandrel base. Thereafter, a plurality of poles are disposed on top of the first end ring and in a generally cylindrical pattern between the stator shell and the mandrel hub. A second end ring is disposed around the mandrel hub and on top of the plurality of poles. A plurality of stator shell tabs may then be bent in a radially inward direction to axially retain the first and second end rings.

Abstract: A system and method for manufacturing a brushless direct current (BLDC) motor fluid pump is disclosed. The system includes an electromagnetic forming device, an upper fixture, a lower fixture, and a pneumatic or hydraulic cylinder. The electromagnetic forming device has a central cavity. The central cavity has a predefined depth from an outer surface of the electromagnetic forming device. The upper fixture is disposed in the central cavity. The upper fixture has a pump stop surface that contacts the BLDC motor fuel pump, and the pump stop surface is selectively spaced from the outer surface of the electromagnetic forming device. A lower fixture having a central cavity for receiving the housing of the BLDC motor fluid pump is provided. A cylinder is configured to move the lower fixture towards the upper fixture until the pump stop surface of the upper fixture contacts the BLDC motor fluid pump.

Abstract: The present invention provides a method of installing a hydroelectric turbine onto the seabed or the like while ensuring that a pre-laid electrical cable connected to the turbine prior to lowering to the seabed is not damaged during installation of the turbine, the method involving lowering the turbine towards the seabed while simultaneously displacing the turbine in order to maintain tension in the electrical cable.

Abstract: A winding apparatus includes a mounting fixture configured to support a plurality of stator teeth. The mounting fixture is configured to rotate about an axis defined by each of the plurality of stator teeth. A plurality of stator tooth holding elements are connected to the mounting fixture. The plurality of stator tooth holding elements retain a select one of the plurality of stator teeth relative to the mounting fixture. The mounting fixture is selectively rotated about the central axis of at least one of the plurality of teeth to apply wraps of wire to the one of the plurality of stator teeth while at the same time rotating others of the plurality of stator teeth. A wire guiding member is supported by the mounting fixture. The wire guiding member is configured and disposed to establish a desired length of wire between adjacent ones of the plurality of stator teeth.

Abstract: The object of the invention is a method and installation means for installing an electrical machine, particularly for installing a rotor within a stator. According to the invention, two or more spacer elements (32) are fitted on the outer circumference of the rotor (6), the distance between the outermost part of these spacer elements and the rotor's central axis of rotation (7) being smaller than the inner radius of the stator (2) and greater than the outer radius of the rotor (6), and the rotor is inserted into the stator in the direction (S) of its shaft.

Abstract: Equipment for manufacturing a stator comprises a coil conduction mechanism which can supply a current to input terminals of a stator, and a heater mechanism having first and second panel heaters which are provided to face the stator. Heat is generated from a coil by supplying a current to the coil from the coil conduction mechanism and sealants filling the stator are heated. On the other hand, the first and second panel heaters are heated by supplying a current and the sealants are heated from the outside. The operation is controlled such that the heating temperature for the sealants by heat generated from the coil and the heating temperature for the sealants by the heater mechanism are uniform.

Abstract: An element mounting apparatus includes a movable arm, an electromagnet, a first controller and a glue dispenser. The glue dispenser includes a plate body and a second controller. The plate body includes an inner space containing glue, a through hole defined therein, and a plurality of spaced glue outlets formed in the first surface and communicating with the inner space. The second end of the electromagnet engages the through hole to attract the magnetic element on the first surface of the plate body with the glue outlets surrounding, and repelling the magnetic element to the retainer. The second controller ejects glue out of the inner space of the plate body via the glue outlets, thereby adhesively mounting the magnetic element to the retainer.

Abstract: A rotor attachment apparatus for attaching a rotor of a motor coaxially to a crankshaft by inserting the rotor into a rotor housing that is attached to an engine, including: a rotor support member; rotor positioning members that engage some of a plurality of bolt insertion holes provided in the rotor, to thereby position the rotor; a temporary fixation bolt that temporarily fixes the rotor on the rotor support member; a drive shaft a tip portion of which is engaged with a shaft end portion of the crankshaft, and which supports the rotor support member movably in an axis direction via a screw mechanism; a base member that moves the rotor support member toward and away from the rotor while rotatably supporting a base end of the drive shaft; base positioning members that engage the rotor housing; and a fastening mechanism which engages a head of a coupling bolt inserted into at least one of the bolt insertion holes, and which is supported by the rotor support member so as to bias the coupling bolt toward the rot

Abstract: A stator manufacturing apparatus for manufacturing a stator efficiently includes a base plate, a plurality of radially inward displacing jigs disposed radially in an annular pattern on the base plate and which are radially displaceable toward and away from each other, a plurality of core holding jigs disposed radially inward of the radially inward displacing jigs and which are radially displaceable toward and away from each other, a movable plate disposed vertically upward of the base plate and which is vertically movable toward and away from the base plate, a cam disposed on the movable plate for displacing the radially inward displacing jigs radially toward each other when the movable plate is lowered, and a spacer holding jig for holding spacers that are inserted between adjacent separate cores.

Abstract: A method of applying at least one magnet to a surface of a component made of a magnetic material includes placing the at least one magnet in a holding apparatus, and positioning the holding apparatus in the immediate vicinity of the component. A holding element applies a holding force to the at least one magnet to hold it in the holding apparatus. The holding element is deactivated such that the holding force is reduced, and the at least one magnet is transferred to the surface of the component. A holding apparatus for applying at least one magnet to a surface of a component made of a magnetic material includes a surface region for supporting the at least one magnet and at least one deactivatable holding element for applying a force on the at least one magnet.

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: An apparatus for routing conductors, such as signal carrying conductors, from within an electro-mechanical machine housing to a location outside the housing is provided. The apparatus includes a base for fitting in a first opening in the housing and securing a lower portion of the apparatus to the housing. The apparatus also includes a channel for carrying the conductors, which may be formed in a shape corresponding to a profile of a portion of the housing. The apparatus includes a fastener, such as a snap-type mechanical fastener, for securing the apparatus to the housing.

Abstract: A yoke is produced by rolling up Zn—Al—Mg platinized steel plate of corrosion-resistance treatment where both ends thereof are tightly mated. On the outer peripheral surface of the yoke, plural linear grooves extending in the axis direction of the yoke are formed at a constant interval in the rolling step. Because the steel plate of corrosion-resistance treatment is prepared before initiating the rolling step, it is not necessary to perform coating and electroplating after making a cylindrical shaped yoke, namely, not necessary to perform any coating and electroplating after making the yoke, and the grooves are not filled with reaction products. This increases the radiation capability of the yoke because of increase of the entire surface area of the yoke. The Zn—Al—Mg platinized steel has a silver color and hardly absorbs radiant heat from an engine of a vehicle, and suppresses the increasing of the yoke temperature.

Abstract: A die machine for manufacturing a laminated iron core includes a first working row for punching out iron core pieces from a steel sheet material and a second working row for punching out electrically insulating sheet pieces from an electrically insulating synthetic resin sheet material. Each iron core piece includes a spindle hole and a plurality of slot holes for receiving coil windings. Each electrically insulating sheet includes a spindle hole and a plurality of slot holes which have a substantially similar configuration to, but are smaller than, the slot holes of the iron core pieces. The die machine includes a stacking die mold for selectively receiving the iron core pieces and the electrically insulating sheet pieces such that successive stacks of iron core pieces are sandwiched between electrically insulating sheet pieces.

Abstract: The manufacturing device for bending an electromagnetic element of an electrical machine, which includes a stator lamination (5), has a first device (10) for bending the stator lamination (5) to form a pre-curved stator lamination and a second device (25) for final forming of the pre-curved stator lamination. The second device (25) includes a first assembly (29) for axially fixing and pressing the pre-curved stator lamination and a second assembly for radially centering and pressing the pre-curved stator lamination. The first device (10) includes a bending mandrel (11) around which the stator lamination (5) bendable, which has an outer diameter that is larger than an inner diameter of the fully bent electromagnetic element.

Abstract: A method for sheathing an armature for electric machines, in which a stack of lamellae that is equipped with grooves for armature windings is mounted on an armature shaft by means of a bore and is provided with at least one groove insulation with the aid of the sheathing process. The sheathing plastic flows through ducts that extend along the bore of the stack and the armature shaft. The plastic is molded in only on a first face of the stack and flows into the grooves and through the ducts. The plastic invades the grooves also from the second face after being discharged from the ducts and converges with the plastic discharged from the first face. The method implements fixing and insulation of the grooves while the groove insulation is provided with a minimum layer thickness for such sheathings at the bottom thereof in order to allow for maximum copper fillings.

Abstract: A motor driving device manufacturing method for manufacturing a motor driving device including a motor case, a rotor, and a stator disposed concentrically with the rotor on the outer periphery of the rotor, includes a measuring step for measuring a position of the stator relative to an axial center of the rotor from an inner side of the stator using a measuring device inserted in the stator; an adjusting step for adjusting the position of the stator from the inner side of the stator based on a measurement result of the measuring step using an adjustment device inserted in the stator, wherein the measuring step and the adjusting step are executed in a rotor not-inserted state, in which the stator is housed in the motor case and the rotor is not inserted in the stator; a stator fixing step for fixing the stator in the motor case; and a rotor shaft-support step for inserting the rotor in the stator and shaft-supporting the rotor on the motor case.

Abstract: A method and apparatus for compressing the endplate of an electric generator to relieve the restraining force on a plurality of key blocks that restrain the endplate in compression. The method includes simultaneously applying independent compressive loads at each of the key block locations to the endplate to relieve pressures on the key blocks and removing the key blocks so the endplate can be removed.

Abstract: Apparatus for assembling a permanent magnet rotor comprising a rotor fixture configured to slide over a smaller diameter bearing section of the rotor and abutting one end of a center axial section of the rotor and a split compression ring having an inner diameter that is sized to ride over the outer diameter of magnets in magnet carriers assembled on the rotor fixture.

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.

Abstract: The present invention comprises a method and apparatus for installing a stator core, or portions thereof, into a power generator frame 2 that comprises assembling the stator core inside of a container 60, and then moving the container to the power generator 1. The container 60 is horizontally aligned with the power generator 1, and the stator core is transferred from the container to the power generator.

Abstract: In a resolver of a motor, a plurality of wires forming a plurality of coils arranged at a resolver stator portion are arranged at a wiring surface which is arranged at a terminal block of a connector portion and extends between an annular shape surface arranged substantially perpendicularly to a central axis at a core back of an insulator and a plurality of terminal pins, and are connected to a control unit via the terminal pins. Each of the wires of the resolver includes a slackened portion formed at a portion thereof between corresponding terminal pins and corresponding coils. The slackened portion is accommodated in a groove portion arranged at the wiring surface of the connector portion in order to minimize the possibility of damaging the wire improving reliability of the connection between the terminal pin and the coil.

Abstract: Stator designs have wide-mouth slots between adjacent poles. Wire coils with high slot fill conductivity are formed around the poles. In some designs, the wire coils are wave wound around the poles. Thick bar conductors can be used for making the wire coils. The wire coils may be inserted using nozzle dispensers or transferred from a pre-form mandrel. In other designs, the wire coils are pre-formed on transferable pockets that are then mounted on the poles. Optional pole extensions or shoes can be attached to the stator poles after the wire coils are formed around the poles.