Additional Permanent Magnets Patents (Class 310/154.43)
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Patent number: 11632015Abstract: An axial flux motor includes a housing; a drive shaft disposed within the housing; at least one rotor; and at least one stator. The at least one rotor includes a diametrically-magnetized single pole pair magnetic ring having a rotor aperture defined through the center of the magnetic ring, where the drive shaft extends through the rotor aperture and where the at least one rotor is fixed to the drive shaft. The at least one stator includes a number of conductive windings and a stator aperture, where the drive shaft extends through the stator aperture and where the drive shaft is rotatable within the aperture. The at least one stator is configured to generate an axial magnetic field that causes the at least one rotor to rotate, thereby rotating the drive shaft.Type: GrantFiled: August 27, 2019Date of Patent: April 18, 2023Assignee: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Kalyna L. Sconzert, Joseph A. Kronstedt, Benjamin Breidall, Kimberly A. Robertson
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Patent number: 10326324Abstract: A rotor includes a first rotor core, a second rotor core, a permanent magnet and a resin layer. The first rotor core includes a first core base and first claw-shaped magnetic poles arranged at equal intervals on a peripheral portion of the first core base. The second rotor core includes a second core base and second claw-shaped magnetic poles arranged at equal intervals on a peripheral portion of the second core base. The first rotor core and the second rotor core are combined with each other so that the first and second core bases are opposed to each other and the first and second claw-shaped magnetic poles are alternately arranged in the circumferential direction of the rotor. The permanent magnet includes at least a main field magnet. The main field magnet is located between the first and second core bases in the axial direction, and is magnetized in the axial direction.Type: GrantFiled: November 24, 2017Date of Patent: June 18, 2019Assignee: DENSO CORPORATIONInventors: Yoji Yamada, Koji Mikami
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Patent number: 10177613Abstract: A rotor includes a circular rotor core, a plurality of ? magnets, and ring-shaped Z magnets. The rotor core has a plurality of magnet holding sections formed radially with a rotating shaft as the center. The ? magnets are contained in and held by the magnet holding sections such that the same magnetic poles of adjacent magnets face each other in a circumferential direction of the rotor core. The rotor core is such that N-poles and S-poles are alternately formed in a circumferential direction of an outer circumferential surface of the rotor core. The Z magnets are such that N-poles and S-poles are alternately formed circularly on an opposed face of the auxiliary magnet facing an end face of the rotor core in a direction of the rotating shaft.Type: GrantFiled: January 29, 2014Date of Patent: January 8, 2019Assignee: MABUCHI MOTOR CO., LTD.Inventor: Tadayuki Wakita
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Patent number: 9966806Abstract: The present invention provides an electricity generation device using a neodymium magnet having a helical structure that generates more electricity from the same torque during the same amount of time than common electricity generation devices using magnets, by helically arranging neodymium magnets, which has magnetic force significantly larger than common magnets, outside a unit coil, and that has improved performance of generating electricity by transmitting magnetic fields in vortexes to the unit coil. The electricity generation device using a neodymium magnet having a helical structure includes a first neodymium magnet, a second neodymium magnet, a third neodymium magnet, a first side magnet, a second magnet, a rod, and a unit coil. The electricity generation device using a neodymium magnet having a helical structure further includes a case, a first cover, a second cover, a cradle, a side gear, a first gear, and a handle.Type: GrantFiled: September 18, 2014Date of Patent: May 8, 2018Inventor: Mun Seop So
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Patent number: 9461511Abstract: An electric machine includes a stator and an armature which together bound an air gap via which the stator interacts with a magnetic field of a magnetically active part of the armature. The armature includes as the magnetically active part permanent magnets and magnetically soft flux conducting elements which are arranged between the permanent magnets. The magnetically active part of the armature is in at least one direction of extent longer than a magnetically soft flux conducting device of a magnetically active part of the stator in the direction of extent.Type: GrantFiled: March 15, 2013Date of Patent: October 4, 2016Assignee: SIEMENS AKTIENGESELLSCHAFTInventor: Rolf Vollmer
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Publication number: 20140252901Abstract: The inductor type rotary motor of m-phase (m represents an integer of 2 or more) includes a stator in which distal ends of teeth are circularly disposed, and a rotor having an inductor tooth that faces each of the distal ends of the teeth through a constant gap. The stator includes k·m teeth (k represents an integer of 1 or more), at least one permanent magnet is disposed at each of the teeth, and adjacent permanent magnets, which belong to teeth adjacent to each other, are disposed in such a manner that different polarities face each other.Type: ApplicationFiled: March 5, 2014Publication date: September 11, 2014Applicant: SANYO DENKI CO., LTD.Inventors: Satoshi Sugita, Yuqi Tang, Yasushi Misawa, Shigenori Miyairi
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Patent number: 8766501Abstract: A direct-current rotating electrical machine, in particular for a motor vehicle starter. The machine includes a stator comprising a magnetized structure with permanent magnetization, extending along a circumference of the stator, a rotor, and a group of brushes arranged to allow the electrical supply of the rotor by switching the electrical current in sections of the rotor. The magnetized structure of the machine includes a plurality of main magnets and a plurality of auxiliary magnets, each arranged between two main magnets. The auxiliary magnets have a smaller angular extent and/or radial thickness than the main magnets. The magnetization vector in at least one of the main and auxiliary magnets varies continuously or in steps, at least locally taking a direction other than radial and orthoradial directions.Type: GrantFiled: July 21, 2008Date of Patent: July 1, 2014Assignee: Valeo Equipements Electriques MoteurInventors: Benoit Dupeux, Nicolas Labbe
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Publication number: 20130241335Abstract: An electric machine includes a stator and an armature which together bound an air gap via which the stator interacts with a magnetic field of a magnetically active part of the armature. The armature includes as the magnetically active part permanent magnets and magnetically soft flux conducting elements which are arranged between the permanent magnets. The magnetically active part of the armature is in at least one direction of extent longer than a magnetically soft flux conducting device of a magnetically active part of the stator in the direction of extent.Type: ApplicationFiled: March 15, 2013Publication date: September 19, 2013Applicant: Siemens AktiengesellschaftInventor: Rolf Vollmer
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Systems, Methods, and Apparatus for a Homopolar Generator Charger with Integral Rechargeable Battery
Publication number: 20130234653Abstract: Systems, methods, and apparatus for providing a homopolar generator charger with an integral rechargeable battery. A method is provided for converting rotational kinetic energy to electrical energy for charging one or more battery cells. The method can include rotating, by a shaft, a rotor in a magnetic flux field to generate current, wherein the rotor comprises an electrically conductive portion having an inner diameter conductive connection surface and an outer diameter conductive connection surface, and wherein a voltage potential is induced between the inner and outer diameter connection surfaces upon rotation in the magnetic flux field. The method can also include selectively coupling the generated current from the rotating rotor to terminals of the one or more battery cells.Type: ApplicationFiled: April 24, 2013Publication date: September 12, 2013Applicant: Mechanical Energy Generating Systems, L.L.C.Inventor: Richard Edward Botts -
Publication number: 20120299428Abstract: A swashplate system includes a rotating outer ring and a non-rotating inner ring, the rotating outer ring being adapted to carry a coil of wire and the non-rotating inner ring being adapted to carry a first and a second magnet. The first and second magnets create a magnetic field and an electrical current is created as the coil of wire passes through the magnetic field as the rotating outer ring rotates.Type: ApplicationFiled: March 21, 2011Publication date: November 29, 2012Inventors: Jordan Doyle, James Mast, Cristos Bias
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Patent number: 7800470Abstract: A linear actuating device contains a top magnet and a bottom magnet. The bottom magnet is axially aligned with the top magnet. The top magnet and the bottom magnet have opposing magnetization. A washer is sandwiched between the top magnet and the bottom magnet. A top coil is positioned within the top magnet. A bottom coil is positioned within the bottom magnet. A slug is slidably positioned within the top coil and bottom coil. An actuating member is integral with the slug.Type: GrantFiled: February 11, 2008Date of Patent: September 21, 2010Assignee: Engineering Matters, Inc.Inventors: Andrew M. Wright, Christopher Corcoran, David Cope
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Patent number: 7402929Abstract: A magnetic motor that includes a plurality of rotor magnet assemblies, a plurality of drive magnet assemblies that are laterally moveable with respect to the rotor magnet assemblies, a timing assembly for generating power pulses selectively supplied to the drive magnet assemblies and electromagnetic coils associated with the drive magnet assemblies to receive the power pulses from the timing assembly to momentarily disrupt the magnetic field of such assemblies at selected times.Type: GrantFiled: November 23, 2005Date of Patent: July 22, 2008Inventor: Monte Dilliner
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Patent number: 7038565Abstract: A permanent magnet assembly is disclosed that utilizes at least two rotating magnet subassemblies, and first and second stationary magnet subassemblies arranged so that their magnetic vectors oppose each other. At a first rotational position of the rotating magnet subassemblies, the magnetic vectors of the rotating magnet subassemblies align with the magnetic vector of the first stationary magnet subassembly and oppose the magnetic vector of the second stationary magnet subassembly. At a second rotational position, the magnetic vectors of the rotating magnet subassemblies are reversed, thereby aligning with the magnetic vector of the second stationary magnet subassembly and opposing the magnetic vector of the first stationary magnet subassembly. By locating air gap portions where the magnetic vectors of the rotating magnetic subassemblies meet the magnetic vectors of the stationary magnetic subassemblies, the air gap portions are subjected to a time-varying magnetic flux density.Type: GrantFiled: June 9, 2004Date of Patent: May 2, 2006Assignee: Astronautics Corporation of AmericaInventor: Jeremy Chell
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Patent number: 6873235Abstract: One or more permanent magnets, or one or more permanent magnet arrays are used to produce shear force levitation. A primary application of shear force levitators is a levitated ring energy storage device. Such a levitated ring energy storage device includes a round support structure having a first magnetic levitator or levitator array encircling its outer periphery, and a ring encircling the support structure and having a second magnetic levitator or levitator array encircling its inner periphery, such that the first and second magnetic levitators (or levitator arrays) interact to produce a vertical force that levitates the ring.Type: GrantFiled: April 10, 2003Date of Patent: March 29, 2005Assignee: Magtube, Inc.Inventors: Orlo James Fiske, Chen Chen, Michael Richard Ricci, Bradley Evan Paden
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Publication number: 20030178902Abstract: The present invention relates to a vibration motor of coin type and objects of the present invention is to provide a vibration motor of coin type capable of increasing vibration generation force through increase in eccentric mass and of improving assembly efficiency while achieving compact sizing in a vibration motor.Type: ApplicationFiled: December 19, 2002Publication date: September 25, 2003Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sang Gil An, Soon Do Kweon
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Patent number: 6376957Abstract: A generator or a 3-phase motor is arranged to provide multipolar permanent magnet excitation in combination with multipolar reluctance distribution wherein different numbers of poles are used for the permanent magnet excitation and for the reluctance distribution so that the principal working flux has a finite waveform. An annular rotor rotates about a cruciform stator. The magnets are buried in pole pieces of the stator so they converge radially inwardly with a triangular pole piece between them. Each pole piece is joined to the remainder of the stator by a bridge piece. The inner periphery of the rotor is formed as a circumferential array of teeth separated by recesses. The rotor may be within an annular stator or the machine may be linear.Type: GrantFiled: April 18, 2000Date of Patent: April 23, 2002Assignee: Newage International Ltd.Inventors: Lawrence Haydock, Edward Spooner
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Patent number: 6376956Abstract: A pole arrangement of a motor includes a plurality of permanent-magnet main poles disposed annularly at equal intervals on the inner periphery of a yoke, a plurality of auxiliary poles disposed between adjacent two of the main poles, and a plurality of magnet holders disposed between adjacent two of the main poles. Each the magnet holder is comprised of at least one resilient stopper member for pressing the main poles in the circumferential direction, and each the auxiliary pole is held between the pair of resilient stoppers.Type: GrantFiled: March 9, 2000Date of Patent: April 23, 2002Assignee: Denso CorporationInventor: Akifumi Hosoya