Patents for H02K 1 - Details of the magnetic circuit (44,776)
06/1993
06/30/1993EP0549427A1 Rotor of a dynamo-electric machine with at least one magnetized area and dynamo-electric machine, such as a brushless motor, equipped therewith
06/30/1993EP0549426A1 Permanent magnet rotor and dynamo-electric machine, such as a brushless motor
06/30/1993EP0549425A1 Rotor and/or stator with fixing means for the tile-shaped permanent magnets and dynamo-electric machine, such as a brushless motor, equipped therewith
06/30/1993EP0549241A2 Electrical machines
06/30/1993EP0548608A1 Rotor for permanent magnet-activated electric machine for high rotation speed, and electric machine fitted with the said rotor
06/30/1993CN1073810A Salient-pole generator (motor) rotor design
06/29/1993US5223761 Electromotor with laminated stator and method of manufacturing the same
06/29/1993US5223759 DC brushless motor with solid rotor having permanent magnet
06/29/1993CA2037852C Brushless d.c. motor with plastic stator base
06/24/1993DE4141763A1 Magnetic materials comprising spin-coupled hard and soft magnetic phases
06/24/1993DE4139843C1 Dynamoelectric machine, esp. for car - has salient pole laminated rotor with permanent magnets between poles plus extra slip ring-fed excitation winding
06/23/1993EP0547767A1 A rotor for rotary electrical machinery
06/22/1993US5221503 Forming and filling cavities with powder particles encapsulated with bonding agent; heating; compacting; fusion; core and shell structure
06/16/1993EP0546197A1 Rotor for high-speed induction ac motor
06/16/1993EP0333869B1 Rotor structure of synchronous motor
06/15/1993US5220233 Dynamoelectric machines
06/15/1993US5220228 Rotating electric machine with bevelled armature poles
06/15/1993US5220227 Rotor magnet of motor and having improved magnetizing pattern and method of magnetizing the same
06/10/1993WO1993011597A1 Brushless motor
06/10/1993WO1993011596A1 Rotor of synchronous rotating machine
06/09/1993EP0545060A1 Electric machine with a rotor excited by permanent magnets
06/09/1993EP0544929A1 Arrangement for fixing magnet shells into a motor casing
06/09/1993DE4140245A1 Brushless DC motor for high speed printer paper feed - has rotor provided by non-magnetic sleeve enclosing permanent magnet adhered to sleeve inside wall
06/09/1993CN2135866Y Carbon brush stator composite structure
06/08/1993US5218252 Dynamoelectric machines with stator positioning
06/08/1993US5218251 Composite magnet stepper motor
06/02/1993EP0544537A1 A stator for miniature motors
06/02/1993EP0544310A2 Permanent magnet type dynamoelectric machine rotor
06/02/1993EP0544200A1 Hybrid synchronous machine with transverse magnetic flux
06/02/1993EP0522015A4 Method of making an electromagnetic transducer
06/02/1993CN1072803A Stator for miniature motors
06/01/1993US5216306 Casing structure for motor
05/1993
05/30/1993CA2084032A1 Apparatus for fixation of magnetic shells in a motor housing
05/27/1993WO1993010593A1 Brushless dc motor
05/27/1993WO1993010592A1 Ring armature core for dynamo-electric machines having an intrinsic heat exchanger
05/26/1993CN1072540A Rotor for rotary electrical machinery
05/19/1993EP0542521A2 Radial anisotropic ring magnet and producing method thereof
05/19/1993EP0542213A2 Unilateral fastening of a stator of a brushless direct-current motor to a housing part
05/19/1993EP0198036B1 Method of assembling a stationary assembly and a core for a dynamoelectric machine
05/18/1993US5212419 Lightweight high power electromotive device
05/13/1993WO1993009550A1 Multi-pole composite magnet used in a magnetic encoder
05/13/1993DE4136996A1 Disc drive system for reading or writing data memory - has pancake type motor construction built-in for direct drive with rotor supported on inner and outer ball bearing assemblies
05/13/1993CA2120764A1 Multi-pole composite magnet
05/12/1993EP0418304B1 Method of forming a permanent magnet rotor
05/12/1993CN2133092Y Lighting power device for walking tractor
05/05/1993CN2132329Y Arc shape electric motor
05/05/1993CN1071790A Magnetic permeance device and electric machinery thereof
05/04/1993US5208503 Energy-efficient ferromagnetic stator and core apparatus
04/1993
04/29/1993WO1993008632A1 A magnetically coupled motor
04/29/1993WO1993008631A1 Magnetic force induction generator
04/29/1993DE4135054A1 Mounting laminated core on shaft of small electric motor - eroding surfaces of shaft in electrical discharge machining process to increase diameter
04/28/1993EP0538472A1 Rotor of brushless motor and manufacture thereof
04/27/1993US5206556 Field magnet for miniature motors
04/27/1993US5206554 Electromagnetic micromotor for use in watch movements of small dimensions
04/27/1993US5205721 Split stator for motor/blood pump
04/22/1993DE4214038A1 Electric machine with rectangular teeth in magnetic circuit - reduces reluctance in path of magnetic flux between stator and rotor by interdigitation of pole pieces
04/20/1993USRE34229 Sintered barium, strontium or lead ferrite with surface multipolar anisotropy
04/20/1993US5204571 Miniature electric motor with rubber stator magnet
04/20/1993US5204570 Spheroidal machine
04/20/1993US5203071 Method of motor construction
04/15/1993WO1993007672A1 Rotary field motor
04/15/1993DE4234017A1 External rotor type DC motor - has T=shaped stator poles with centre line at angle to radial direction
04/15/1993DE4133723A1 Drehfeldmotor Synchro motor
04/14/1993CN2130003Y Ac synchronous power saving motor
04/14/1993CN2130002Y Magnetic rotor for flying wheel generator
04/13/1993US5201111 Method of manufacturing an electric motor
04/10/1993WO1993007671A1 Skewing of pole laminations of a switched reluctance machine to reduce acoustic noise
04/10/1993CA2096244A1 Skewing of pole laminations of a switched reluctance machine to reduce acoustic noise
04/07/1993EP0535706A1 Lamination and lamination securing method
04/06/1993US5200729 Permanent magnet and magnetization apparatus for producing the permanent magnet
04/06/1993US5200662 Joint structure of radial type rotor and output shaft in synchronous motor
04/06/1993US5200661 Slotless, brushless, large air gap electric motor
04/06/1993US5200658 Electric motor with through-bolt guides for mounting
04/01/1993WO1993006645A1 Stator support and positioning structure for a dynamoelectric machine
04/01/1993DE4239106A1 Maintenance-free multi-layer generator - allows rotors either side of stator to move axially to enable distance between stator and rotors to be minimised
04/01/1993CA2112126A1 Stator support and positioning structure for a dynamoelectric machine
03/1993
03/24/1993EP0532769A1 Rotor for synchronous motor
03/24/1993CN2128798Y Permanent-magnet salient pole synchronous motor rotor
03/24/1993CN2128797Y Motor structure of desk-type hacksaw machine
03/23/1993US5196751 Large-diameter a.c. motor with joints in the stator
03/23/1993US5196749 Stator support and positioning structure for a dynamoelectric machine
03/23/1993US5195231 Method for producing inner stators for electromagnetic pumps
03/18/1993WO1993004835A1 Skewed rotor assembly
03/17/1993EP0532371A2 Carriers for linear motor vehicle-borne field magnets
03/17/1993CN2128428Y AC magnetoelectric generator
03/16/1993US5193266 Iron shaft and porous metal samarium cobalt alloy bonded with an alloy of aluminum and zinc
03/11/1993WO1993005565A1 Magnetically isolated bolts for lim
03/11/1993CA2095362A1 Magnetically isolated bolts for lim
03/09/1993US5191698 Method of making a resin-molded motor
03/02/1993US5191257 Armature of DC motor
03/02/1993US5191256 Interior magnet rotary machine
03/02/1993US5191255 Electromagnetic motor
03/02/1993US5191250 Dc motor with u-shaped rotor-coil wire having inclined intermediate portion
03/02/1993US5191246 Magnetically isolated bolts for linear induction motor
03/02/1993CA1313944C Lamination to rotor shaft retention method utilizing spring pins
02/1993
02/24/1993EP0528347A1 Wheel-hub dynamo
02/24/1993CN1069368A Special external stator core for automobile generator
02/23/1993US5189325 Liquid cooling the rotor of an electrical machine
02/23/1993CA2049678A1 Electric motor with reduced coil content
02/21/1993CA2076412A1 Electric machine, especially a dynamo for mounting on a wheel hub