Class / Patent application number | Description | Number of patent applications / Date published |
310216057 | Laminated pole | 18 |
20090160287 | BRUSHLESS MOTOR - Disclosed herein is a brushless motor that is simply constructed based on a vernier type motor to achieve high torque without the increase in size and complication thereof. The brushless motor includes a rotor having magnetized surfaces alternately magnetized as N and S poles and a stator having salient poles. The salient poles have tip end surfaces opposite to the magnetized surfaces in the radial direction. Grooves and protrusions are alternately formed at the tip end surfaces of the salient poles in the rotational direction. The grooves and the protrusions extend in the axial direction and have a width in the rotational direction approximately equal to that of the N pole or the S pole. Magnetic bodies are disposed in gaps defined between the grooves and the magnetized surfaces in a non-contact fashion. A magnetic connection member is spaced apart from the stator to interconnect the magnetic bodies. | 06-25-2009 |
20150042200 | ROTOR OF BUILT-IN PERMANENT MAGNET MOTOR AND BUILT-IN PERMANENT MAGNET MOTOR USING SAME | 02-12-2015 |
20150076955 | DUAL-OUT STATOR LAMINATION FOR OUTER ROTOR MOTOR - A stator formed of a dual-out stator lamination is disclosed. The stator comprises a generally annular core including a plurality of arcuately spaced apart teeth. Each of the teeth includes a generally radially extending leg and a head extending generally arcuately relative to the leg to present opposite head ends spaced from the leg. The head presents a tooth head height measured in at least a substantially radial direction. Each adjacent pair of said heads is spaced apart by a generally arcuate slot opening distance defined between the adjacent ends of the pair of heads. The ratio of each tooth head height to each adjacent slot opening distance is at least about twenty-eight hundredths (0.28). | 03-19-2015 |
20160065007 | MOTOR ARMATURE AND MOTOR - A motor armature includes a core including a stack of electromagnetic steel sheets, a tooth portion extending in a radial direction of the motor, and a conductive wire that is wound around the tooth portion in a circumferential direction. First recessed portions extending in the radial direction are located in a surface of the tooth portion of each of the electromagnetic steel sheets of the core. | 03-03-2016 |
310216058 | Securing means | 8 |
20090189477 | Split Core and Manufacturing Method of the Same, and Stator Core - A first laminated body includes first and second laminated groups including respective convex parts alternately disposed. A second laminated body includes third and fourth laminated groups including respective concave parts alternately disposed. The convex part of the first laminated group is shaped to not be inserted into the concave part of the third laminated group and to be inserted into the concave part of the fourth laminated group, from a lamination horizontal direction. The convex part of the second laminated group is shaped to be inserted into the concave part of the third laminated group and the concave part of the fourth laminated group, from the lamination horizontal direction. The convex part of the first laminated group is press-inserted in the concave part of the third laminated group, and the convex part of the second laminated group is inserted in the concave part of the fourth laminated group. | 07-30-2009 |
20090195110 | LAMINATED CORE, METHOD AND APPARATUS FOR MANUFACTURING LAMINATED CORE, AND STATOR - A laminated core block includes a plurality of core members made of magnetic sheets stacked one on top of another, the plurality of core members including first and second core members which adjoin in a laminating direction, and a thermoplastic resin strand placed between the first and second core members. The thermoplastic resin strand is arranged to pass along one side surface of the first core member, between the first and second core members and along a side surface of the second core member on a side opposite to the aforementioned side surface of the first core member in this order. The first and second core members are bonded to each other by melting and curing the thermoplastic resin strand. | 08-06-2009 |
20100026134 | PROCEEDING FOR THE MANUFACTURING OF A STATOR FOR AN ELECTRIC MOTOR AND OF AN ELECTRIC MOTOR, STATOR AND ELECTRIC MOTOR - A process for manufacturing an outer stator ( | 02-04-2010 |
20100225194 | ELECTRIC MOTOR - The present invention relates to an electric commutator motor ( | 09-09-2010 |
20110074242 | Method of Tuning Bending and Torsion Stiffness of Ducted Rotor Core of An Induction Motor - Electrodymamic machine rotating mass, including for example induction motor rotors, stiffness tuning methods include selective orientation and compression of modular tie rod assemblies into through bores formed in the rotor lamination core outboard of the rotor shaft during motor manufacture, repair or refurbishment. Stiffness tuning enables a motor manufacturer to tune a rotor's rotordynamic stability, and hence the assembled motor's critical vibration speed. Electrodynamic machine rotating mass tuning can be adjusted in response to machine physical design, operational application and manufacturing variation attributes that impact the assembled machine's critical vibration frequency. Thus the present invention offers a systematic, holistic approach to motor vibration refinement through use of a simple kit of modular tie rod assemblies oriented and tightened in a selected array. Rotor stiffness tuning can be tested virtually on computer work stations. Additional actual rotor stiffness tuning can be performed during manufacture. | 03-31-2011 |
20110084569 | ARMATURE CORE - An armature core includes a back yoke and teeth. The teeth include a plurality of magnetic plates laminated along a lamination direction. The back yoke includes holes through which the teeth are inserted. The holes penetrate through a pair of surfaces of the back yoke. The back yoke and the plurality of magnetic plates are welded to each other at a point at which an edge of a boundary between the adjacent magnetic plates and a surface forming the hole are close to each other and any one of the pair of surfaces is exposed. | 04-14-2011 |
20140117806 | INTERLOCKING ARRANGEMENT FOR ELECTRIC MOTOR - Embodiments of the invention relate to arrangements for connecting together elements of an electric motor or generator such as a rotor or stator. The rotor ( | 05-01-2014 |
20180026484 | STATOR AND ELECTRIC MOTOR | 01-25-2018 |
310216059 | Alternating laminations | 2 |
20090195111 | MOTOR - A motor includes an output shaft rotatably provided, a rotor fixed to the output shaft and rotatable with the output shaft, a stator formed by a lamination of plurality of electrical steel sheets made by a magnetic material, the electrical steel sheets being punched by means of a press working, a coil wound at the stator, and a case accommodating the stator and the rotor and including a holder for holding the stator. The electrical steel sheets are arranged at one end of the stator in a lamination direction thereof and at the other end of the stator in the lamination direction thereof respectively. The electrical steel sheets include surfaces each at which a shear droop is formed. The surfaces of the electrical steel sheets face each other. | 08-06-2009 |
20160111921 | Stator Comprising a Split Core and Method for Producing Such a Stator - An electric motor stator wherein an annular central part and a yoke surrounding the central part, the central part includes a bundle of laminations delimiting poles, wherein the bundle of laminations includes a plurality of first laminations each containing portions forming a pole part that are joined by an annular internal portion, second laminations each forming a pole part being mounted between the first laminations, the first laminations being spaced apart from one another at a predetermined spacing according to a required inductance. | 04-21-2016 |
310216061 | Circumferentially stacked | 1 |
20130154435 | STATOR - There is provided a stator that suppresses degradation in insulating performance and pressure-resisting performance without an additional insulating member, that can shorten a work time, and improve winding efficiency of a wound wire and heat radiation performance. The stator | 06-20-2013 |
310216063 | Wound lamination | 1 |
20150048713 | ELECTRIC MACHINES AND METHODS OF MAKING SAME - A method of making a stator module for use in a stator assembly of an electric machine includes temporarily supporting a plurality of stator segments in a desired orientation using a temporary support. The desired orientation of the stator segments is a relative orientation of the stator segments within the stator module. A mold is placed around the plurality of stator segments and the mold is filled with a potting material to form a stator module such that the potting material supports the stator segments in their desired orientation. The temporary support is removed. | 02-19-2015 |
310216064 | Laminated pole tip (e.g., shoe) | 2 |
20100259126 | MOTOR AND ELECTRONIC DEVICE COMPRISING THE SAME - A motor comprising a stator having a plurality of magnetic poles disposed in a circumferential direction along an outer periphery thereof, a rotor disposed rotatably around the outer periphery of the stator, and a magnet disposed in a circumferential direction along an inner periphery of the rotor. The stator is formed by laminating sheet-like plates. A plurality of the sheet-like plates including an outermost layer of this laminated body comprises a flat portion substantially perpendicular to the magnet, and an extended portion bent to a direction substantially parallel to the magnet. A part of the sheet-like plate having the extended portion disposed to the outermost side is formed into a thickness smaller than thicknesses of the other parts. | 10-14-2010 |
20110001386 | MOTOR AND ELECTRONIC APPARATUS USING THE SAME | 01-06-2011 |