Class / Patent application number | Description | Number of patent applications / Date published |
310042000 | With assembling, metal casting or machining feature | 18 |
20080218006 | METHOD OF ASSEMBLING A ROTOR SHAFT ASSEMBLY - A method of assembling a rotor shaft assembly is provided. The method includes assembling a self-aligning bearing seat from a first assembly and a second assembly such that the self-aligning bearing seat substantially circumscribes a rotor shaft. The method also includes creating an interface defined between the first assembly and the second assembly, such that when the rotor shaft experiences misalignment the interface accommodates misalignment of the rotor shaft. | 09-11-2008 |
20080224549 | Apparatus and Method for Correcting Shape of Inner Surface of Stator - 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. | 09-18-2008 |
20080238219 | ROTOR AND METHOD FOR MANUFACTURING THE SAME - A rotor includes a rotor core made of a magnetic material, a receiving portion provided at the rotor core, a magnet accommodated in the receiving portion, a first end plate provided at a first end portion of the rotor core, a second end plate provided at a second end portion of the rotor core, a tightening device tightening integrally the rotor core, the first end plate, and the second end plate, an opening portion provided at one of the first end plate and the second end plate so as to communicate with the receiving portion, and a magnet fixing member formed by a coagulation of a thermoplastic resin that is injected from the opening portion so as to fix the magnet to the receiving portion. | 10-02-2008 |
20080278009 | Method and apparatus for generator rotor tooth repair - Disclosed is a method of repairing at least one side of a dovetail portion of a generator slot wall. The dovetail portion of the slot wall is receptive of at least two adjacent slot wedges, and the dovetail portion includes a radial entry surface, an inwardly tapered surface, and an intermediate radial surface. The method includes forming at least one repair groove at least partly along the inwardly tapered surface and in a radial direction along the radial entry surface. The forming removes material from the slot wall. At least two adjacent slot wedges are replaced with at least two repair wedges. The at least two repair wedges have a butt joint between the adjacent repair wedges and the butt joint is located between adjacent repair grooves. | 11-13-2008 |
20090001824 | TWO-PHASE SYNCHRONOUS ELECTRIC MOTOR WITH PERMANENT MAGNETS FOR MECHANICAL PRIMING WASHING PUMPS OF DISHWASHERS AND SIMILAR WASHING MACHINES - The present invention relates to a two-phase synchronous electric motor ( | 01-01-2009 |
20090001825 | MOTOR, FAN, ROTOR HOLDER AND MANUFACTURING METHOD OF THE SAME - The manufacturing method of a rotor holder according to the present invention includes a step in which a top plate portion having a substantially discoid shape substantially centered about a central axis, and a side wall portion extending from an outer circumferential edge of the top plate portion are formed simultaneously by feeding a metal plate in a predetermined direction and pressing the metal plate by a die. Also, the present manufacturing method includes a step in which a punched portion is formed at the side wall portion. | 01-01-2009 |
20090001826 | Rotor structure - A rotor includes: a magnet having a circular cylinder shape and having a hole formed through its axial center, wherein the hole has in axial cross section a regular polygonal shape having flat portions and angle portions, and wherein a recess having a truncated cone shape is disposed at an axial end of the magnet such that the recess has its maximum diameter portion located at the axial end and has its minimum diameter portion communicating with the hole; and a shaft fitted in the hole of the magnet, wherein the outer circumference of the shaft makes contact with the flat portions of the hole of the magnet thereby forming a plurality of gaps between the outer circumference of the shaft and the angle portions of the hole of the magnet, and adhesive is filled in the gaps. | 01-01-2009 |
20090026851 | MOTOR ARMATURE AND METHOD OF MANUFACTURING SAME - A motor armature includes radially projecting laminations having T-shaped electrical steel strips including recesses on a front surface of its short part, and projections on a rear surface of the short part aligned with the recesses wherein each of the two outermost electrical steel strips further has an arcuate first through hole proximate either side; and a plurality of front and rear interconnection groups comprising first, second, and third interconnections wherein each of the first and the second interconnections includes two cavities on a front surface and two protrusions on a rear surface aligned with the cavities, and the third interconnection includes two second through holes, two arcuate left and right grooves on a front surface and two protuberances on a rear surface aligned with the grooves. A method of manufacturing the motor armature is also disclosed. | 01-29-2009 |
20090026852 | Indexing apparatus and method for installation of stator bars - A stator bar installation fixture and method for installing stator bars into specific stator core slots within a stator core of rotating electrical equipment. The stator bar installation fixture includes rotating mechanisms, rotatingly fixed at each end of the rotating electrical equipment, for supporting and controlling an angular positioning of a stator bar insertion mechanism relative to the stator core. The stator bar insertion mechanism supports a stator bar within the stator core, angularly locates a stator bar in alignment with the specific stator core slot, and inserts the stator bar into the specific stator core slot. | 01-29-2009 |
20090026853 | TRANSVERSE FLUX MACHINE - The invention shows a transverse flux machine, including a transverse flux machine housing ( | 01-29-2009 |
20090026854 | CONNECTION STRUCTURE AND METHOD OF CONNECTING FIELD COIL AND LEAD WIRES IN VEHICLE ALTERNATOR - A connection structure and a connection method of connecting field coils and lead wires in a vehicle alternator. The connection structure includes a rotor assembly, a rear fan, and a rotor insulator. The rotor assembly includes a rotor shaft, a spool bobbin, and rotor segments. In the connection structure, a soldering or welding process is performed on twisted parts, which are formed by twisting field coils and lead wires around each other, the twisted parts are bent in the guide pockets of the rotor insulator, epoxy is applied to the outer surfaces of the twisted parts and the inner surfaces of guide pockets, and the rear fan is coupled to the front of the rotor insulator so that the inner surfaces of the protrusion hubs of the rear fan are in close contact with the guide pockets of the rotor insulator. | 01-29-2009 |
20090026855 | MOTOR PROVIDED WITH HOLDING STRUCTURE FOR RADIAL BEARING - A motor may include a rotor having a rotation shaft, a stator, a first radial bearing and a second radial bearing which rotatably support the rotation shaft. The motor may further include a second plate which is fixed to the end face of the stator and is formed with a second bearing insertion opening into which the second radial bearing is inserted. The second bearing insertion opening is formed with a bearing abutting part which abuts with an outer peripheral face of the second radial bearing to restrict movement in a radial direction of the second radial bearing, and a cut-out part which is radially recessed from an inner circumferential edge of the bearing abutting part for reducing an abutting area of the second radial bearing with the second bearing insertion opening. | 01-29-2009 |
20090072638 | BRUSHLESS MOTOR - A brushless motor includes a motor drive unit, a circuit board arranged to drive the motor drive unit having through holes formed in the upper surface and the lower surface; and a motor attachment plate including a plate-shaped base portion and plate-shaped fixing portions to fix the circuit board in place. Herein, each fixing portion includes a support portion for making contact with a surface of the circuit board; an arm portion bent in a direction that is substantially parallel to the rotational axis; and a protrusion portion inserted into a through hole, having at least one overhang extension protruding from the through hole. The overhang extension of the protrusion is bent in a direction that is substantially perpendicular to the rotational axis. | 03-19-2009 |
20090085414 | AC generator for vehicles - The alternator (AC generator) of this invention is provided with a front (a second) housing, a rear (a first) housing, and a bolt. A bolt hole is formed in the front housing. A nut part that the bolt is screwed into is formed in the bolt hole. Another bolt hole that the bolt is inserted into is formed in the rear housing. The bolt has a large diameter portion that is inserted into the bolt hole of the rear housing The entire circumference of the outer surface of the large diameter portion contacts the inner side of the bolt hole. Therefore, when the bolt is tightened, positioning of the direction of a circumference of the first housing to the second housing can be performed by inserting the bolt so that the outer surface of the large diameter portion contacts the inner side of the bolt hole. Thus, positioning of the housings can be carried out without enlarging its size, and without using a jig, etc. | 04-02-2009 |
20090102297 | BLOWER MOTOR ASSEMBLY FOR VEHICLE - Disclosed herein is a blower motor assembly for a vehicle. The blower motor assembly comprises an armature assembly, a motor body, a magnet, an upper case, and a lower case. The armature assembly comprises a rotatable armature shaft with an armature. The motor body is an open cylinder that houses the armature assembly. The magnet is installed between the motor body and the armature assembly. The upper case has a through-hole which permits the armature shaft to projects outward through. The lower case is coupled to the upper case. The motor body is installed in an internal space defined by the coupled upper and lower cases. The motor body is fixed in a correspondingly-shaped hollow portion defined by a wall of a motor body fixing portion formed in the lower case. The magnet is fixed to a magnet fixing portion formed in the lower case. | 04-23-2009 |
20090108685 | Electronically Commutated Motor Control Retention Apparatus - An electric motor assembly includes a motor housing having a main body portion with a central plane bisecting the main body portion into an upper portion and a lower portion. The motor housing further includes a first printed circuit board support structure having a plurality of slots and a second printed circuit board support structure having a top surface that is orientationally above at least a portion of the plurality of slots. The motor assembly further includes a printed circuit board having tabs which are configured and arranged to operably coordinate with the plurality of slots to thereby removably retain the printed circuit board at the motor housing and in contact with the top surface of the second printed circuit board support structure. | 04-30-2009 |
20090115263 | POWER TRANSMISSION DEVICE AND METHOD OF ASSEMBLING THE SAME - To improve a convenience in assembling a rotor of an electric motor of a power transmission unit comprising the electric motor and a transmission mechanism. | 05-07-2009 |
20090146510 | ELECTRIC MOTOR AND METHOD FOR MANUFACTURING THE SAME - Assembly work of an electric motor in which a power supply device and a rotation detector both equipped in a motor case are connected to a control device via a connector unit can be made easy. A power window motor includes an armature provided with an armature shaft and a motor yoke rotatably accommodating the armature. A gear case is fixed to the motor yoke, and a power supply unit that supplies a driving current to the armature is equipped to the gear case in the axial direction of the armature shaft. A sensor unit that detects rotation of the armature shaft is attached to the power supply unit in the axial direction of the armature shaft. A connector unit for connecting the power supply unit and the sensor unit to the control device is integrally formed with the power supply unit. The power supply unit is attached with the sensor unit in advance and then equipped to the gear case. | 06-11-2009 |