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| Number | Title | Issue Date |
| 7415758 | Device to press the shaft of a rotor into a stator housing A device to press a rotatably supported shaft of a rotor of a spindle motor for a hard disk drive into a shaft receiving portion of an associated stator housing by means of a first pressing tool acting on the rotor and a second pressing tool acting on the stator hou... | 08/26/2008 |
| 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 |
| 7275299 | Motor manufacturing process A plurality of single-pole coils are retained by a coil retaining device, the single-pole coils are arranged such that the coil insertion portions of each single-pole coil confront the inner circumference openings of the slots and may be generally parallel to the ax... | 10/02/2007 |
| 7266884 | Apparatus for cutting and removing wedges of a stator core of an electrical machine The wedge removal apparatus includes an elongated frame having telescopic elements at opposite ends with cylinders to engage pads along opposite sides of the frame against diametrically opposed wedges of stator core slots. The frame mounts a linear drive assembly ca... | 09/11/2007 |
| 7246428 | Method for making a coil piece onto a core of rotary electric machine A method for mounting a coil onto a stator for a rotary electric machine. The method includes forming a coil piece by winding wire having a flat cross section into a single row lamination state including wire layers that are aligned along a line that is perpendicula... | 07/24/2007 |
| 7213324 | Method and manufacturing stator coil structure for revolving field electrical machine A number of embodiments of rotating electrical machines and methods for winding them that provides a high space utilization and very effective winding with less likelihood of damage to the insulation of the wire of the winding during the winding process. The arrange... | 05/08/2007 |
| 7197811 | Method for separating stator windings of an electric motor during manufacture A technique for separating the stator leads of an electric motor during the manufacturing process. The technique comprises a system having a lead gathering assembly, a lead separator, and a drive mechanism. The lead gathering assembly is adapted to gather together a... | 04/03/2007 |
| 7185413 | Motor manufacturing method A motor manufacturing method includes: a coil formation step of forming a unipolar coil, having coil inserting portions at two positions and coil end portions at two positions, in to a shape that changes such that a size in a height direction parallel to the coil in... | 03/06/2007 |
| 7143501 | Method for assembly of an automotive alternator stator assembly with rectangular continuous wire A method of forming a stator core assembly for an electric machine includes providing a stator core having a plurality of radially extending slots, forming a flat wire pack having a plurality of continuous electrical wires, shaping the flat wire pack into a substant... | 12/05/2006 |
| 7032291 | Method of manufacturing stator winding of rotary electric machine A method of manufacturing a stator winding includes a twisting step of U-shaped conductor segments having a pair of straight portions by moving the straight portions in the circumferential direction while restraining the turn portions of the U-shaped conductor segme... | 04/25/2006 |
| 6902132 | Wire winding apparatus for dynamo-electric components Methods and apparatus are provided for wire winding and fabrication for dynamo-electric machine components such as ferromagnetic armature or stator cores for motors or the like. Wire may be wound onto individual portions of dynamo-electric machine components, which ... | 06/07/2005 |
| 6869491 | Bonding method In a bonding method in which two display panels 7A, 7B are held by the two panel holding portions 31a, 31b provided on the panel support table 31 positioned by the XYθ table 30 so as to position the first pres... | 03/22/2005 |
| 6834421 | Apparatus for dynamo-electric machine insulation handling Methods and apparatus for insulating interior walls of lamination slots of dynamo-electric machine components are provided. The relative speeds and sequence of cutting, forming, and inserting a piece of insulation material into the slot of the lamination core of a d... | 12/28/2004 |
| 6744168 | Stator and stator manufacturing method A stator and a stator manufacturing method is provided in which a space factor can be improved, while reducing the number of components and simplifying the manufacturing process. A stator comprises a plurality of teeth cores 11 positioned at predetermined int... | 06/01/2004 |
| 6674211 | Rotary electric machine having conductors insulated by insulation sleeve inserted into core slot Plural slots are formed in a cylindrical stator or rotor core of a rotary electric machine. An insulation sleeve having a substantially rectangular cross-section is inserted into each slot, and conductors are inserted into an inner space of the insulation... | 01/06/2004 |
| 6640416 | Method for axially drawing coils into stators or rotors of electric machines Prewound coils are axially drawn into grooves of stators or rotors of electric machines. This is performed by means of a draw-in star, which can be pushed forward through their bores, behind which cover strips (16), made of insulated material, are pushed ... | 11/04/2003 |
| 6618928 | Method for loading slot cell insulators into a stator core A method for loading slot cell insulators into a plurality of slots in a stator core of a dynamoelectric machine is disclosed. The method includes forming a slot cell insulator having a generally U-shape cross-section. The slot cell insulator may be turne... | 09/16/2003 |
| 6601286 | Device for producing a distributed wave winding A device is provided for producing a distributed wave winding. To improve the currently used method for producing a distributed wave winding the device provides for a relative indexing to be carried out between a template and a coil receiver after a first... | 08/05/2003 |
| 6519832 | Method for automated stator manufacture A methodology of sleeving at least one lead of a stator is provided. The methodology includes the steps of robotically selecting at least one of the stator leads, and robotically positioning an insulating sleeve over the stator lead.... | 02/18/2003 |
| 6446329 | System for manufacturing a stator A system of manufacturing a stator is provided. The system comprises: a pallet, which includes, a base portion, a first ring rotatably disposed within the base portion for supporting the stator, a second ring rotatably disposed in the base portion, the se... | 09/10/2002 |
| 6339871 | Method of manufacturing rotary electric machine's stator A method of manufacturing a stator of a rotary electric machine is comprised of the following steps: providing a plurality of U-shaped basic conductor segments and a plurality of U-shaped connection conductor segments; forming the U-turn portions and stra... | 01/22/2002 |
| 6282773 | Apparatus for producing winding slot insulators and inserting same into the stator core of an electromechanical machine Insulating slot liners for insertion into stator core winding slots are formed from a narrow-width reel of insulating material. The width of the material is determined by the inner circumferential surface of the winding slot that must be insulated, instea... | 09/04/2001 |
| 6094807 | Lacing mandrel for containing stator wedges A lacing mandrel for use when lacing a stator has an elongate shaft with an enlarged head, or sizing plug, proximate an upper end. The sizing plug permits an operator to easily and readily determine whether the bore of the stator is obstructed, both befor... | 08/01/2000 |
| 6065204 | Slot cell insulating system and method A system and a method for forming, storing and loading slot cell insulators into slots in a stator core of a dynamoelectric machine. The system includes a forming assembly for forming slot cell insulators and a loading assembly for storing the insulators ... | 05/23/2000 |
| 5826321 | Coil inserting tooling with quick release collet Improvements in coil placing tooling of the type employed to insert prewound coils in the slots of dynamoelectric machine stator cores which tooling has an annular collet for maintaining wedge guides axially and radially in position, and the wedge guides ... | 10/27/1998 |
| 5802706 | Apparatus for injecting stator winding coil groups into a stator core An apparatus for injecting a plurality of coil groups into a stator core of a dynamoelectric machine is described. The injection apparatus includes, in one embodiment, a stripper assembly including a first stripper. The first stripper includes an injectio... | 09/08/1998 |
| 5778518 | Device for pressing slot sealing pieces for winding bars into slots of an iron body of an electric machine In a device (1) for pressing in slot sealing pieces (12, 14) for winding bars (20) inserted into the slots of a stator laminated core of an electric machine, a plunger (8) is arranged by means of a force-generating device (4) in a collet (2) with a cam (3... | 07/14/1998 |
| 5657530 | Method of and apparatus for inserting coins and slot insulators into core of dynamoelectric machine In a method of inserting motor coils and slot insulators, a coil inserting jig is moved between a layer insulator inserter and a wedge inserter, and a core holder is moved between a predetermined location and the wedge inserter, so that a stator core is f... | 08/19/1997 |
| 5594984 | Gapless inner diameter stator winding blocking mechanism An inner diameter block for blocking the inner diameter of windings of an electric motor includes a plurality of first segments and a plurality of second segments arranged in an alternating manner. The segments are movable radially outwardly to block the ... | 01/21/1997 |
| 5553372 | Apparatus for inserting insulation sheets into slots of a stator core A method of inserting a pair of connecting portions of an insulation sheet into the slots in a stator core is disclosed. The insulation sheet includes a pair of body portions interconnected at their opposite ends by the connecting portions. The top sheet ... | 09/10/1996 |
| 5542170 | Apparatus for inserting insulation sheets into slots of a stator core An apparatus for inserting connecting portions of an insulation sheet into slots of a stator core. A housing and a blade grip the insulation sheet by the slit in each of its connecting portions. The housing and the blade are then turned so that the blade ... | 08/06/1996 |
| 5537730 | Coil inserting tooling blades Improvements in coil placing tooling of the type employed to insert prewound coils in the slots of dynamoelectric machine stator cores. Certain ones of the blades comprise an elongated blade of generally uniform cross-sectional configuration which include... | 07/23/1996 |
| 5533252 | Slot insulator guide in assembly of dynamoelectric machine and coil inserting apparatus provided therewith A slot insulator guide used with a coil inserting apparatus for guiding a layer insulator and a wedge having different sizes from each other toward each slot of a stator core of a dynamoelectric machine. Both side faces of the guide include a first guide ... | 07/09/1996 |
| 5491886 | Gapless inner diameter stator winding blocking mechanism An inner diameter block for blocking the inner diameter of windings of an electric motor includes a plurality of first segments and a plurality of second segments arranged in an alternating manner. The segments are movable radially outwardly to block the ... | 02/20/1996 |
| 5490318 | Method for the manufacture of stator-or-rotor-windings for electrical machines from parallel-wires A method for manufacturing of rotor or stator windings for electrical machines comprises the steps of winding a plurality of parallel wires to form at least two groups of coils on a rotating jig. The plurality of parallel wires are fed from a stationary f... | 02/13/1996 |
| 5357670 | Guide jig for guiding a dove-shaped stator wedge A stator wedge having a cross section of a dove-tail is disposed at a radially inner side of each of a plurality of slots formed in a ring-shaped core and having a coil inserted therein. Also a guide jig for guiding the wedge having the dove-tail cross se... | 10/25/1994 |
| 5090110 | Method for manufacturing stator for rotating machine A method for manufacturing a stator for use in a rotating machine provided with a core main body having a plurality of teeth projecting from an outer circumferential side of the core main body and wound with a coil, and a ring member fitted on the outer c... | 02/25/1992 |
| 5090114 | Tool for applying slot wedges A tool for applying slot wedges having a main arm, a pair of pivotally mounted dogs for engagement in the slot key and straddling the external surface of the slot key, respectively, whereby the tool may be fixed in axial position along the slot key by pre... | 02/25/1992 |
| 5075959 | Generator rotor slot wedge assembly and disassembly fixture A method and apparatus for the assembly and disassembly of dovetail shaped wedges into and from the coil slots of dynamoelectric rotors using a fixture attached to a rotor shaft coupling in a selectable radial position so as to be aligned with a rotor slo... | 12/31/1991 |
