Abstract: A vehicle electric motor including: a tubular-shaped stator core constituted by laminated steel sheets; a casing including an outer circumferential wall and a bottom wall, and storing therein an axial end portion of the stator core; a casing cover including an outer circumferential wall and a bottom wall, and storing therein another axial end portion of the stator core, and a rotor disposed inside the stator core. The stator core includes fastened portions protruding radially outwardly from respective portions of an outer circumferential surface of the stator core which are circumferentially spaced apart from each other. The stator core is fastened at the fastened portions to the bottom wall of one of the casing and the casing cover. The other of the casing and the casing cover includes protrusion portions protruding from its inner wall surface toward the stator core so as to restrain inclination of the stator core.

Abstract: A stator 1 includes a plurality of divided cores 3 constituting a stator core 2, and an annular holder 4 integrally holding the divided cores 3 from the outside. The divided core 3 has an opposite surface 8 opposing an inner circumferential surface of the holder 4. On the opposite surface 8, a recess part 10 extending parallel to a center axis line ax is provided, and on the inner circumferential surface of the holder 4, a projection part 14 entering the recess parts 10 is provided. The projection part 14 comes into contact with an edge of any one of both sidewalls 10a and 10b in the corresponding recess part 10.

Abstract: Embodiments of the invention relate generally to turbo-generators and, more particularly, to suspension systems for turbo-generators and the attenuation of vibration in a stator core induced by an electromagnetic load. In one embodiment, the invention provides a support clamp comprising: an arcuate body; a first affixation point; a second affixation point; and a securing point between the first and second affixation points, wherein each of the first and second affixation points includes a radially-oriented opening extending from an inner surface to an outer surface and the securing point includes an area adjacent to an angled opening extending from a first surface to a second surface, each of the first and second surfaces lying substantially perpendicular to the inner and outer surfaces of the arcuate body.

Abstract: A stator core for a motor is disclosed, the stator core including at least one cylindrical stator core body formed in one body by using a metallic mold so that a plurality of teeth is protruded to a same direction each at a predetermined gap, and both distal ends of the stator core body are coupled through a bending process for each horizontal predetermined section about a center of the teeth, and a fixing unit provided at both distal ends of stator core body to fix the stator core body in a cylindrical shape.

Abstract: A stator core (105) including tabbed laminations (100) stacked face-to-face to form a plurality of tabbed lamination modules (107), with each tabbed lamination including a first tab (102) and a second tab (104) extending from a circumferential edge of the lamination. Non-tabbed laminations are also stacked face-to-face to form a plurality of non-tabbed lamination modules (109), each non-tabbed lamination lacking a tab. The tabbed lamination modules are stacked face-to-face in an alternating configuration with non-tabbed lamination modules. The tabs are used to attach the stator core to an inside surface of an electrical generator frame (2), such as by attaching the tabs to frame support rings (4) of the generator frame.

Abstract: A stator includes a hollow cylindrical stator core, a stator coil and an outer cylinder. The stator core is comprised of a plurality of core segments that are arranged in a circumferential direction of the stator core to adjoin one another in the circumferential direction. The stator coil is mounted on the stator core. The outer cylinder is fitted on a radially outer periphery of the stator core. The outer cylinder has, at least, a protruding portion and a non-protruding portion. The protruding portion protrudes radially inward to include an abutting part that abuts the radially outer periphery of the stator core. The non-protruding portion extends, without protruding radially inward, to define a radial clearance between the radially outer periphery of the stator core and a radially inner surface of the non-protruding portion. The protruding and non-protruding portions are continuously formed in an axial direction of the outer cylinder.

Abstract: A stator includes a hollow cylindrical stator core comprised of a plurality of stator core segments and an outer cylinder fitted on the radially outer surface of the stator core. The stator core has a recess formed in the radially outer surface and the recess has an engaging wall surface that extends in both the axial and radial directions of the stator core. The outer cylinder has a fastening portion for fastening the outer cylinder to the stator core. The fastening portion is formed to be partially surrounded by a plurality of first slits and a second slit. The fastening portion is bent radially inward to have a second slit-side end part thereof received in the recess of the stator core. Further, the second slit-side end part of the fastening portion has a distal end engaging with the engaging wall surface of the recess of the stator core.

Abstract: In a core material according to the present invention, a predetermined number of core pieces, each having a tooth portion and a yoke portion, are connected to each other via connecting portions. Each of the connecting portions includes: a V-shaped notch portion; a through hole that is formed at a tapered portion of the notch portion with a diameter elongated in a connection direction; and a thin portion that is formed outside of the through hole and connects the core pieces to each other. The width of the thin portion is more increased apart from the axis of symmetry of two sides constituting the V shape of the notch portion, and further, an intersection between extension lines of the two sides constituting the V shape lies within 0.3 W from the inner side of the thin portion in a notch direction and within the thin portion when W designates the width of the thin portion along the axis of symmetry.

Abstract: A rotor core for a rotary electric machine includes a plurality of ring-shaped core plates. The core plates are formed by joining arc-shaped segments. The core plate segments each include a protruding portion that is formed on one surface of each of the segments and has an end in the circumferential direction that is arc-shaped, and a recessed portion that is formed on the other surface and has an end in the circumferential direction that is arc-shaped, and to which the protruding portion of the core plate segment of another layer is fitted when the core plates are laminated. An interference fit is provided between the protruding portion width of the core plates and the recessed portion of the core plates in the radial direction and a loose fit is provided in the circumferential direction.

Abstract: A rotor for a motor is provided including: a rotor core including at least one a first coupling portion on an outer circumference thereof, wherein the first coupling portion includes a first coupling groove or a first coupling projection; at least one division core spaced apart from the rotor core and including a second coupling portion on an outer circumference thereof, the second coupling portion including a second coupling groove or a second coupling projection; and a connecting pin including a third coupling portion and a fourth coupling portion, the third coupling portion to be coupled to the first coupling portion and the fourth coupling portion to be coupling to the second coupling portion.

Abstract: A stator core for a motor is disclosed, the stator core including at least one cylindrical stator core body formed in one body by using a metallic mold so that a plurality of teeth is protruded to a same direction each at a predetermined gap, and both distal ends of the stator core body are coupled through a bending process for each horizontal predetermined section about a center of the teeth, and a fixing unit provided at both distal ends of stator core body to fix the stator core body in a cylindrical shape.

Abstract: An electric motor has a stator, a rotor and brush gear. The rotor includes a shaft, a rotor core fixed to the shaft, a commutator fixed to the shaft, and rotor windings wound on the rotor core and electrically connected to the commutator. The brush gear includes at least two arcuate brushes for making sliding contact with the commutator. The commutator and brush gear are disposed within a space formed in the rotor core to minimize the axial length of the motor.

Abstract: A retaining ring configuration system is disclosed. In one embodiment, the system includes a set of adjustment apparatuses configured to contact a portion of a generator rotor, each of the set of adjustment apparatuses including: a base member for contacting the portion of the generator rotor; an adjustment member for adjusting a position of the generator retaining ring relative to the generator rotor; and an actuation member coupled to the base member and operably attached to the adjustment member, the actuation member for actuating movement of the adjustment member to adjust the position of the generator retaining ring relative to the generator rotor.

Abstract: Solutions for reducing key bar rattle in dynamoelectric machines are disclosed. In one embodiment an apparatus includes: a plurality of key bars operably coupling a stator core to a stator wrapper in which the stator core is at least partially contained; a cable surrounding the plurality of key bars; and at least one anchor device connecting a portion of the cable to the stator wrapper to produce a compressive load on at least one of the plurality of key bars by tightening the cable around the plurality of key bars.

Abstract: A positioning and retaining element has a cylindrical rotary belt of substantially constant thickness, having an inner diameter substantially equal to the outer diameter of the stator to be capable of being mounted substantially coaxial clamped about the stator. The positioning and retaining element also has a number of support members projecting radially from the belt outwards and having each a support surface on the housing of the compressor, the support surfaces being located on the lateral surface of a fictitious rotary cylinder of same axis as the other belt and of diameter substantially equal to the inner diameter of the housing, such that the positioning and retaining element can be mounted clamped inside the housing.

Abstract: A stator (10) for an electronically commutated DC motor with a number of stator poles (1) formed as individual parts, consisting of a pole core (25), pole shoes (26) and return sections (27), in which the return sections (27) of the stator poles (1) have intermeshing profiles, on which they lie against each other, so that the return sections form a hollow cylindrical return (35) with each other, in which the pole cores (25) connect to the return sections (27) directed radially inward. The individual stator poles are each provided with an insulation and a winding, and the wound stator poles (1) are held together by a retaining part that does not serve as motor housing. The task of the present invention is to provide a stator for an electrically commutated DC motor, which can be mounted simply and reliably, and which facilitates assembly of the stator in the motor housing.

Abstract: An electric machine including a stator, and a rotor lamination assembly configured and disposed to rotate relative to the stator. The rotor lamination assembly includes a plurality of laminations that define an outer diametric surface. A rotor lamination compression sleeve extends about the outer diametric surface of the rotor lamination assembly. The rotor lamination compression sleeve exerts a compressive radial force on the rotor lamination assembly. The rotor lamination compression sleeve is configured and disposed to expand when subjected to a centrifugal force while still maintaining a compressive radial force.

Abstract: A silicon steel assembly includes a first cover, a second cover, plural tooth members and an outer ring. The second cover has plural recesses. The tooth members are accommodated within respective recesses of the second cover. The first cover, the tooth members and the second cover are combined together to form a combination structure. The outer ring is sheathed around an outer periphery of the combination structure.

Abstract: An alternator can reduce the size of welding equipment and shorten the time of welding operation while ensuring high performance and high quality with the generation of electromagnetic noise being suppressed. The alternator includes a rotor having N poles and S poles alternately formed along a circumferential direction thereof, a stator core arranged so as to surround the rotor and having a plurality of axially extending slots formed at a predetermined pitch in the circumferential direction thereof, and a stator having a stator winding fitted into the slots. The stator core is formed by deforming by bending a hexahedral element iron core composed of iron core blocks with their adjacent ends being in abutment with each other and fusion bonded by welding. The weld portions of the blocks have a depth fusion extending at least up to a tensile region where a tensile stress of the stator core is generated.

Abstract: A transaxle includes a case having an opening, a second rotating electric machine stored in the opening of the case and having a stator, a rear planetary gear stored in the transaxle case and connected to the second rotating electric machine, a transaxle rear cover sealing the opening and a bolt fixing the second rotating electric machine to the transaxle case. The stator has first and second thrust end faces defining an axial length thereof. The first thrust end face is pressed against an inner surface of the case.

Abstract: A stator core includes: an assembled stator core formed of annularly arranged, divided stator cores; a fixing member disposed at an outer circumferential surface of the assembled stator core and capable of pressing the divided stator cores inward in a radial direction of the assembled stator core to annularly arrange and thus fix the divided stator cores; and a weak portion provided between the divided stator cores and the fixing member and deformable by a force exerted from the fixing member to press the divided stator cores.

Abstract: Systems, methods, and apparatus for controlling key bar movement in a stator assembly are provided. According to one embodiment, a stator assembly is provided that includes multiple core ring compression bands longitudinally spaced apart and disposed around a stator core having a plurality of key bars radially spaced apart and extending longitudinally along a peripheral edge of the stator core. Each of the core ring compression bands can be formed from multiple semi-circular sections coupled to form the respective core ring compression band. Each of the key bars can be disposed within respective cutouts defined in an inner edge of the core ring compression bands.

Abstract: A stator for an electric rotating machine has iron core fastening members on the outer circumferential surface of a stator iron core, spaced apart from one another in a circumferential direction and fastened to the iron core in an axial direction. Holding rings on the outer circumferential surface of the iron core, spaced apart from one another in the axial direction, press the iron core toward a center portion thereof via the iron core fastening members. Ring-shaped inner frame members protrude from the inner surface of a frame that encloses the iron core, and are spaced apart from one another in the axial direction. Elastic supporting members are fixed to the inner circumferential surfaces of the inner frame members that are adjacent to one another, and are fixed to the outer circumferential surfaces of the holding rings at the middle in the axial direction, or vice versa.

Abstract: A manufacturing method of a rotating electric machine includes the steps of: preparing a plurality of split stator cores annularly arranged at intervals in a circumferential direction so that their inner end portions are aligned with an imaginary circle and a support member positioned inside the imaginary circle in a radial direction to support the inner end portions of split stator cores; mounting a fastening member on outer peripheries of split stator cores to press respective split stator cores inward in the radial direction; and displacing split stator cores pressed by fastening member inward in the radial direction while the support member is supporting split stator cores.

Abstract: A stator (10) for an electronically commutated DC motor with a number of stator poles (1) formed as individual parts, consisting of a pole core (25), pole shoes (26) and return sections (27), in which the return sections (27) of the stator poles (1) have intermeshing profiles, on which they lie against each other, so that the return sections form a hollow cylindrical return (35) with each other, in which the pole cores (25) connect to the return sections (27) directed radially inward. The individual stator poles are each provided with an insulation and a winding, and the wound stator poles (1) are held together by a retaining part that does not serve as motor housing. The task of the present invention is to provide a stator for an electrically commutated DC motor, which can be mounted simply and reliably, and which facilitates assembly of the stator in the motor housing.

Abstract: The stator of an electric rotating machine includes a stator core constituted of a plurality of core pieces joined to one another in a ring, a plurality of phase windings wound around the stator core, the stator core and the phase windings constituting a core assembly body, and an outer casing into which the core assembly body is fitted. Gaps are provided between an outer periphery of the core assembly body and an inner periphery of the outer casing.

Abstract: A synchronous machine (10), especially a turbogenerator, includes a rotor (12) rotatable about a rotor axis, the rotor being concentrically surrounded by a stator (11), with an air gap (26) between said rotor (12) and stator (11), and includes a rotor damping system (14). Damping losses are substantially reduced by providing a system in the air gap (26) for controlling the stator magnetic field (13).

Abstract: A stator core includes: an assembled stator core formed of annularly arranged, divided stator cores; a fixing member disposed at an outer circumferential surface of the assembled stator core and capable of pressing the divided stator cores inward in a radial direction of the assembled stator core to annularly arrange and thus fix the divided stator cores; and a weak portion provided between the divided stator cores and the fixing member and deformable by a force exerted from the fixing member to press the divided stator cores.

Abstract: A positioning and retaining element has a cylindrical rotary belt of substantially constant thickness, having an inner diameter substantially equal to the outer diameter of the stator to be capable of being mounted substantially coaxial clamped about the stator. The positioning and retaining element also has a number of support members projecting radially from the belt outwards and having each a support surface on the housing of the compressor, the support surfaces being located on the lateral surface of a fictitious rotary cylinder of same axis as the other belt and of diameter substantially equal to the inner diameter of the housing, such that the positioning and retaining element can be mounted clamped inside the housing.

Abstract: A spindle motor is provided. The spindle motor includes a bearing housing, a bearing, a rotation shaft, a stator, and a rotor. A guide is disposed on an outer surface of the bearing housing. The bearing is fixed in the bearing housing. The rotation shaft is rotatably supported by the bearing. The stator is fixed to the bearing housing. The stator includes a core in contact with the guide and a coil wound around the core. The rotor is fixed to the rotation shaft to rotate by interacting with the stator.