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| Number | Title | Issue Date |
| 7642686 | Rotary electric machine and electric wheelchair mounted with rotary electric machine A rotary electric machine includes a stator including a plurality of teeth, a coil wound around each tooth, and a stator yoke core that connects the respective teeth, the teeth and the stator yoke core integrally fixed by a molding resin. The rotary electric machine... | 01/05/2010 |
| 7615907 | Segmented inner stator and brushless permanent magnet motor with the same A segmented inner stator comprises a stator core and a stator winding. The stator core includes a plurality of core segments which are retained together in a circular arrangement by at least one retaining ring and are mated with each other. At least some of the core... | 11/10/2009 |
| 7576467 | Armature and motor on which the armature is mounted An extension part of an insulator covering a part of a coupling portion of a laminated core of an armature is inclined to the inside in the radial direction along the coupling part. A inclined face which is extended inward in the radial direction is formed in the cy... | 08/18/2009 |
| 7567010 | Modular electric motor with stackable stator poles A modular electric motor stator pole comprising a plurality of independent stator components stacked axially, each stator segment comprising a tooth tip, a back iron and a coil, the tooth tip comprising a stator face and a tooth body, the tooth body having a first e... | 07/28/2009 |
| 7550892 | High slot utilization systems for electric machines Two new High Slot Utilization (HSU) Systems for electric machines enable the use of form wound coils that have the highest fill factor and the best use of magnetic materials. The epoxy/resin/curing treatment ensures the mechanical strength of the assembly of teeth, ... | 06/23/2009 |
| 7541711 | Electric motor, stator of electric motor, and manufacturing method for the stator A stator of an electric motor includes teeth, coils each wound about one of the teeth, and a yoke. Each tooth includes a tooth main body and a tooth reinforcing portion, which is integrally molded with at least a part of the surface of the tooth main body. The tooth... | 06/02/2009 |
| 7531937 | Axial air-gap electronic motor In an axial air-gap electronic motor in which a teeth surface of a stator and a magnet surface of a rotor are arranged opposedly along the axis line direction of an output shaft of the rotor with a predetermined gap being provided therebetween, the stator has a plur... | 05/12/2009 |
| 7528520 | Electric motor having a field assembly with slot insulation An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slo... | 05/05/2009 |
| 7408282 | End shields and stators and related methods of assembly An electric machine includes an end shield and a stator. The stator may be a segmented stator or a non-segmented stator. At least one track is defined by either the stator or the end shield, and at least one pin is defined by the other one of the stator and the end ... | 08/05/2008 |
| 7388313 | Armature for a direct current motor An armature for a direct current motor, in particular for a permanent-magnet-excited DC motor, has an armature body, with armature teeth joined in one piece together via a short-circuit ring and offset by equal circumferential angles, each with a tooth neck for rece... | 06/17/2008 |
| 7381033 | Reciprocating compressor A reciprocating compressor includes a front frame; a middle frame positioned with an interval from the front frame; an outer stator having a winding coil and coupled between the front frame and the middle frame; a cylinder coupled to the front frame; a magnet mounti... | 06/03/2008 |
| 7378772 | Rotor for permanent magnet motor A metal film 4 is disposed between a permanent magnet 3 and a rotor yoke 1, and the permanent magnet 3 and the rotor yoke 1 are subjected to beam welding. Since the metal film 4 is disposed between the permanent magnet 3 | 05/27/2008 |
| 7378774 | Laminated core of rotary electric machine A laminated core having a first number of magnetic poles, the first number being a natural number divided by two, of a rotary electric machine, includes a plurality of arc-shaped unit cores each having a second number of magnetic poles, the second number being a nat... | 05/27/2008 |
| 7375451 | Electric motor having a permanent magnet rotor and a stator core of united poles Electric motor (1) comprising a stator (2), a magnetic induction core (3) constrained to said stator, at least one magnetic excitation coil (4a, 4b) associated to said induction core, a rotor (5) of substantial... | 05/20/2008 |
| 7372184 | Stator of motor A stator of a motor having various shapes and capable of minimizing the manufacturing costs. At least teeth are manufactured by the iron powder metallurgy method. In order to obtain the overhang effect, the height of a tip of each tooth is lower than the height of a... | 05/13/2008 |
| 7362019 | Vehicle alternator A vehicle alternator for generating electric power has a stator, a rotor, a rectifier, a regulator case, and a cooling fin part. A stator winding is wound on the stator. The rotor is placed on opposite faces to the stator. The rectifier rectifies an alternating curr... | 04/22/2008 |
| 7358637 | Method of compressing lamination stacks for permanent magnet rotor The present invention is a method of compressing lamination stacks for a permanent magnet rotor. The method includes the steps of providing a plurality of stages of lamination stacks and magnet carriers on a rotor shaft to form an assembly; positioning a spacer betw... | 04/15/2008 |
| 7357743 | Hub motor Provided herein is a hub motor, which includes: a motor shaft, which is non-rotational (e.g., fixed), a hub housing, which is connected to the motor shaft via bearings, a stator of the motor with winding, which is fixedly connected to the motor shaft, wherein, the h... | 04/15/2008 |
| 7348706 | Stator assembly for an electric machine and method of manufacturing the same A stator for a multi-phase electric machine having a plurality of core segments interconnected with one another and a plurality of coils. At least one core segment includes a plurality of teeth and a back portion that at least partially interconnects the teeth. The ... | 03/25/2008 |
| 7348707 | Electromechanical device having three-dimensional stator laminations In certain embodiments, an electromechanical device includes a rotor having a rotational axis, and a stator disposed about the rotor. The stator may include a circumferentially laminated section comprising a plurality of circumferential segments disposed one after a... | 03/25/2008 |
| 7345397 | Segmented stator with improved handling and winding characteristics A stator segment for a stator assembly includes a stack of substantially identical laminations and a containment structure receiving a portion of the stacked laminations. The containment structure includes a flexible hinge element. The containment structure can incl... | 03/18/2008 |
| 7340820 | Machine stator fabrication method A machine stator is fabricated by positioning pre-wound stator windings with respect to a laminated stator yoke and directly molding composite tooth tips into contact with respective teeth of the laminated stator yoke, or by positioning pre-wound stator windings aro... | 03/11/2008 |
| 7340821 | Stator and resolving method and device thereof The method for resolving the stator having a coil disposed in the slots provided around an inner circumferential face of a cylindrical iron core and having an opening portion includes a step of enlarging the opening portion of the slot, and a step of extracting the ... | 03/11/2008 |
| 7340822 | Insulator and manufacturing method thereof, and stator for electric rotating machine A stator for a motor includes a stator core, an insulator, and coils. The stator core includes an annular portion and teeth, which extend radially from the annular portion. The stator core is divided into core segments in the circumferential direction. Each core seg... | 03/11/2008 |
| 7337524 | Method of forming a winding core for an electric motor A method of forming a winding core for an electric motor includes providing a hollow jig having a guide, sliding plates, each having a guide and a central opening, onto the guide in the jig where the guides mate, and pressing a shaft into the central opening of the ... | 03/04/2008 |
| 7332845 | Spoke permanent magnet rotor A rotor includes a shalt that defines a rotor axis, a first end portion coupled to the shaft, and a pole piece that defines an enclosed aperture therethrough. A second end portion is positioned to dispose the pole piece between the first end portion and the second e... | 02/19/2008 |
| 7328498 | Method for producing the surface geometry of solenoids A method for producing a solenoid with a center limb and two outer pole shanks that have one pole surface each and one back resting so that it faces away from it. The back is first at least partially freely formed. The solenoid is then elastically tensioned towards ... | 02/12/2008 |
| 7323799 | Axial gap type rotating electric machine There is provided an axial gap type rotating electric machine which is small-sized and achieves a high motor efficiency as a drive source having a high torque using a strong magnet by reducing energy loss by an induced current. An axial gap type rotating electric ma... | 01/29/2008 |
| 7323800 | Outer stator for reciprocating motor and manufacturing method thereof An outer stator of a reciprocating compressor comprises: a bobbin formed as a ring shape and provided with a winding coil therein; an outer stator frame coupled to an outer circumferential surface of the bobbin and formed of a magnetic body in which a flux flows; a ... | 01/29/2008 |
| 7323801 | Axial air-gap electronic motor There is provided an axial air-gap electronic motor in which work for assembling a stator can be performed efficiently. A locking protrusion 26 is provided on a flange portion 24 of core members 21a to 21i which are divided ... | 01/29/2008 |
| 7315105 | Device for an electrical machine A device for axially magnetized electrical machines, especially motors, having a rotor with permanent magnets and a stator with a series of windings on iron cores. The stator comprises a support pin (17), which is integrated or joined with a protruding flange... | 01/01/2008 |
| 7309936 | Resolver with waterproofing elements To obtain a resolver in which the winding portion is prevented from breaking by corrosion caused by water. The resolver includes: a stator core in which a plurality of pole teeth are formed inside an annular stator core main body in a radius direction, a rotor provi... | 12/18/2007 |
| 7301310 | Excitation controlled synchronous permanent magnet machine The present invention provides an apparatus and methods for providing constant voltage from a permanent magnet generator at varying prime mover speeds or under varying loads. A constant voltage permanent magnet generator includes a housing, a magnetized rotor, a pri... | 11/27/2007 |
| 7285891 | Armature core of rotating electric machine A rotating electric machine armature core (1) is configured by combining such a number of magnetic tooth sections (2) that corresponds to the number of magnetic poles, each of the magnetic tooth sections (2) including a plurality of first sheet ... | 10/23/2007 |
| 7285893 | Magnetic powder metal component stator A compacted magnetic powder metal component stator for use in an electrical machine is provided. Each stator is comprised of a plurality of stator core assemblies. Each stator core assembly forms an arcuate section of the stator core itself. Each stator core assembl... | 10/23/2007 |
| 7285892 | Stator having teeth with a projecting portion extending outwardly from a winding portion and a yoke portion In the field of stators including divided tooth-shaped iron cores and core back iron cores, a stator is provided in which the tooth-shaped iron cores and the core back iron cores can be easily connected to each other, and the tooth-shaped iron cores and the core bac... | 10/23/2007 |
| 7282831 | Generator in a wheel of a bicycle with collective multiple magnetic poles A small generator with collective multiple magnetic poles includes a magnet, multiple magnetic poles arranged in an annular shape and facing to the magnet, an annular iron core having its outer circumference combined with the multiple magnetic poles spaced apart and... | 10/16/2007 |
| 7279821 | Motor A motor includes a rotor, a rotor core included in the rotor, the rotor core being configured to be embedded, therein, with at least one first magnet, a pair of end plates, one of the pair of end plates being positioned at an axial end of the motor, an other one of ... | 10/09/2007 |
| 7271512 | Stator of outer rotor type motor for drum type washer The present invention provides a stator of an outer rotor motor for a washing machine. The stator includes a ring type helical core, an upper insulator having a shape corresponding to a shape of the helical core to enclose an upper part of the helical core, a lower ... | 09/18/2007 |
| 7268459 | Electric power steering apparatus The electric power steering apparatus includes a brushless motor as an electric motor. The motor has a rotor and a stator 34. The stator 34 includes: a back core BY; a plurality of teeth TS disposed along the circumference of the back core protruding f... | 09/11/2007 |
