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| Number | Title | Issue Date |
| 7692352 | Apparatus and method for cooling rotor and stator motor cores A laminated core for a motor includes a plurality of laminations each of which are disposed in a non-spaced relation to an adjacent lamination and each of which have a disc-like configuration and wherein the plurality of laminations are each dimensioned and configur... | 04/06/2010 |
| 7626306 | Laminated core structure of motor The laminated core structure of a motor includes a stator iron core formed by laminating a plurality of stator iron core thin sheets in which a plurality of magnetic poles are provided at fixed intervals along the circumferential direction on the inner peripheral si... | 12/01/2009 |
| 7608969 | Stator for rotary electric machine A stator for a rotary electric machine, including a plurality of stator cores arranged in a circumferentially spaced relation about a central axis of the stator, and a molded resin filled between the adjacent stator cores. Each of the stator cores includes a meshing... | 10/27/2009 |
| 7560846 | Flux barrier type synchronous reluctance motor and rotor thereof A rotor of a flux barrier type synchronous reluctance motor comprises: a rotation shaft; a rotor core formed as a plurality of steel plates are laminated to one another, the steel plate having a shaft hole for inserting the rotation shaft, a plurality of flux barrie... | 07/14/2009 |
| 7538468 | Electric motor and electric compressor with improved housing and stator A housing of an electric motor includes an inner circumferential surface, which includes recesses arranged along the circumferential direction. On an outer circumferential surface of a stator core of a stator are provided protrusions arranged along the circumferenti... | 05/26/2009 |
| 7508109 | Commutator motor A commutator motor includes a stator and a rotor, and the stator includes a stator yoke and a field magnet. The field magnet is fixed onto the inner peripheral surface of the substantially cylindrical stator yoke. The stator yoke is configured by coaxially stacking ... | 03/24/2009 |
| 7485997 | System and method for securing a rotor to a motor drive shaft using cam fasteners A rotor assembly for mounting a rotor to a motor shaft having a rotor with a centrally positioned central bore, the diameter of which is slightly larger than a diameter of the motor shaft, a first stepped bore intersecting the central bore and being aligned along a ... | 02/03/2009 |
| 7471025 | Segmented stator with improved handling and winding characteristics A stator assembly has discrete stacks of laminations. A plurality of nonmagnetic containment structures define pockets. The stacks are at least partially received in the pockets and coupled to one another by the containment structure. The containment structures are ... | 12/30/2008 |
| 7439646 | High power generator with enhanced stator heat removal A high speed, high power generator has its main stator configured with one or more reduced-diameter sections. The generator includes a generator housing, a main rotor, and a main stator. The generator housing has a main stator cooling flow passage formed therein tha... | 10/21/2008 |
| 7418843 | Drum type washing machine A washing machine has a tub that may be made of plastic. A drum is rotatably installed in the tub. A shaft may pass through the tub and connect to the drum for transmission of a driving power from a motor to the drum. The washing machine has a bearing supporting par... | 09/02/2008 |
| 7420310 | Brushless motor Of two bearings supporting a rotor of a circuit-integrated type core-equipped brushless motor, a part of an outer periphery of the bearing, which is disposed at a position near a stator core, is allowed to directly abut on an inner periphery of a hole formed in a ce... | 09/02/2008 |
| 7414348 | Armature core of rotating electric machine A rotating electric machine armature core is configured by combining such a number of magnetic tooth sections that corresponds to the number of magnetic poles, each of the magnetic tooth sections including a plurality of first sheet members each of which includes a ... | 08/19/2008 |
| 7408280 | Rotor of rotary electric machine A Lundell type rotor core with a pair of side cores and a magnetic-pole cylindrical portion has a structure in which the magnetic-pole cylindrical portion is mated between both the side cores (also referred to as “pole cores”) in a radial direction at an outside... | 08/05/2008 |
| 7397163 | Power generator stator assembly, a stator core module assembly, and a process for assembling a stator core module assembly within a stator frame A stator core module assembly (20) is provided which is adapted to be mounted to at least one structural element (16, 18) coupled to a stator frame (10). The stator core module assembly comprises a stator core module (22) adapted to form ... | 07/08/2008 |
| 7397162 | Method and apparatus for checking stator core alignment In one embodiment the present invention provides for a method for checking the alignment of a stator core that comprises placing a laser source 14 and a target 18 a given distance apart on a stator core 10 and activating the laser such that the ... | 07/08/2008 |
| 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 |
| 7380424 | Drum type washing machine Drum type washing machine including a tub of plastic having a wall for holding washing water therein and mounting a driving part thereon, a drum rotatably arranged inside of the tub, a shaft passed through the tub and connected to the drum for transmission of a driv... | 06/03/2008 |
| 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 |
| 7375450 | Hub unit for use in electrically movable wheels and vehicle comprising the hub unit A hub unit for use in electrically assisted bicycles has an improved effect to radiate heat from a stator. A hub (7) has inner teeth (66a) meshable with planetary gears (65) and a fixing support shaft (57) projecting from opposite ... | 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 |
| 7372181 | Rotor for brushless motor and brushless motor A rotor for a brushless motor which can securely prevent an idle running and a scattering of a magnet while restricting a manufacturing cost as low as possible. The rotor is provided with a sintered ring magnet in which not-ground recess portions are formed in an ax... | 05/13/2008 |
| 7368843 | Commutator motor A commutator motor includes a stator and a rotor, and the stator includes a stator yoke and a field magnet. The field magnet is fixed onto the inner peripheral surface of the substantially cylindrical stator yoke. The stator yoke is configured by coaxially stacking ... | 05/06/2008 |
| 7368844 | Magnetoelectric generator A stator core includes: a laminated body in which a plurality of intermediate plates that have dowels are laminated so as to be integrated by dowel crimping between layers; and a pair of end plates that are disposed so as to be positioned on opposite sides of two en... | 05/06/2008 |
| 7365469 | Laminated armature core for an electric motor In an armature packet (1) for an electric motor, having a plurality of armature laminations (2, 3), in each of which a plurality of winding slots (4) for receiving an armature winding (5) are embodied, and the winding slots (4) of ... | 04/29/2008 |
| 7362027 | Electric machine with a laminated rotor core An electric machine includes a shaft and a rotor core mounted onto the shaft and formed of a plurality of stacked laminations. The rotor core has opposite end surfaces for attachment of a plate in such a manner as to allow an axial deflection of the laminations in t... | 04/22/2008 |
| 7362028 | Stator of outer rotor type motor for drum type washer The present invention provides an outer rotor type motor for a drum type washing machine to reduce material and weight for fabrication, simplify fabrication process, provide stable assembly of a stator to a fixing side such as a tub or a bearing housing, prevent by ... | 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 |
| 7353586 | Method of horizontally stacking a stator core within a stator frame The present invention provides a method 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 groo... | 04/08/2008 |
| 7352102 | Motor Bearings for rotatably supporting a rotor are disposed on an inner side of a hollow cylindrical portion of the rotor which is disposed in a rotating magnetic field formed by a group of stator windings and on an outer periphery of which magnetic poles for generating ... | 04/01/2008 |
| 7352092 | Integrated motor and controller assemblies for horizontal axis washing machines A horizontal axis washing machine includes an integrated motor and controller assembly. The controller is mounted to the electric motor with the controller positioned under a tub of the washing machine. The tub provides drip protection for the controller during oper... | 04/01/2008 |
| 7352098 | Insulator An insulator includes a main body portion for axially covering one side face of a core that includes a plurality of teeth portions extending in a radial direction, and a plurality of extending portions extending from the main body portion in an axis direction of the... | 04/01/2008 |
| 7352101 | Skew shape variable laminated iron core and method of manufacturing the same In a laminated iron core in which plural iron core pieces are laminated through caulking projections and caulking holes in which the caulking projections are fitted, and in the iron core pieces except a lowermost layer, the caulking projections and the caulking hole... | 04/01/2008 |
| 7348697 | System for ventilating a motor Certain exemplary embodiments comprise a system comprising: a motor stator comprising: a motor frame comprising a core shell adapted to surround a stator core comprising: a plurality of panels; a plurality of apertures located in one or more of said panels; and a fi... | 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 |
| 7342344 | Stator of outer rotor type motor for drum type washing machine The present invention provides an outer rotor type motor for a drum type washing machine to reduce material and weight for fabrication, simplify fabrication process, provide stable assembly of a stator to a fixing side, such as a tub or a bearing housing, prevent un... | 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 |
| 7342339 | Reluctance machine having a non-uniform air gap A reluctance machine includes a stator having a stator core. The stator core includes a central bore and a plurality of stator poles extending inwardly from the stator core. Each of the stator poles includes a stator pole face. The reluctance machine further include... | 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 |
| 7342343 | 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 |
