3,221,194 entitled Permanent Magnet Rotor issued Nov. 30, 1965 to AB. The PM motor consists of an annular brush ring assembly, a permanent magnet stator ring and a laminated wound rotor. A rotor construction comprising: a a cylindrical member of permanent magnet material having an axial bore therethrough, said member comprised of cobalt and at least one rare earth metal, said magnet member having a plurality of equally spaced first magnetic poles of alternating polarity at its radially outer surface; I a shaft comprised of a ferromagnetic material, said shaft extending through said axial bore in said magnet member; 7. a coating of material selected from the group consisting of zirconium oxide, magnesium oxide, and aluminum oxide on the surface of said shaft; means for securing said shaft to said magnetic member ,to form an integral rotor assembly, and a nonmagnetic sleeve surrounding the outer peripheral surface of the cylindrical member. A permanent magnet assembly (22) for assembly in large permanent magnet (PM) motors and generators includes a two-piece carrier (23, 24) that can be slid into a slot (13) in the rotor (10) and then secured in place using a set screw (37). Then balance the rotor on a spike as shown: 38. The direct current in the rotor field winding is fed through a slip-ring assembly or provided by a brushless exciter on the same shaft. Having described the invention, what is claimed is: 1. UNISON INDUSTRIES LIMITED PARTNERSHIP, 530 BLACKHA, Free format text: It is still another object of this invention to provide a dielectric barrier between a ferromagnetic flux carrier and an integral sintered samarium cobalt magnet so that migration of the flux carrier material into the samarium cobalt magnet is prevented. For over 25 years, Integrated Magnetics has developed and refined the expertise needed for the technical design and manufacturing of high-speed, high-reliability, high-efficiency permanent magnet rotors for high-performance electrical machines. The d.c. permanent magnet (PM) motor is a continuous-rotation electromagnetic actuator which can be directly coupled to its load. To balance a magnet rotor (see diagram 38), first attach the PCD jig (from diagram 11), using four bolts. certain features of the invention may be used to advantage without corresponding use of other features. The sensing devices provide position feedback for adjusting frequency and amplitude of stator voltage reference properly to maintain rotation of the magnet assembly. Our continuous development and improvement means that we are always up-to-date on leading-edge technologies and trends. The magnetizer includes a magnetizing yoke (16) and coils (18, 20, 22, 24) wound around the magnetizing yoke. Ningbo Sine Magnetic Co., Ltd. Ndfeb Magnet Assembly, Permanent Magnet Assembly, Magnet Rotor manufacturer / supplier in China, offering Strong Permanent Magnet Assembly Rotor, Strong Permanent Neodymium Motor Magnet (Moto Magnet) NdFeB Magnet, 540 Degree Rotating Magnetic Data Cable Charging Cable and so on. Arnold produces high performance permanent magnet motor components and sub-assemblies for aerospace and defense, industrial, automotive, and motorsport applications, such as: KERS — Kinetic Energy Recovery System, which includes a composite sleeved RECOMA® SmCo magnet rotor for a 50,000+ RPM, 100KW+ system 3 is a simplified diagrammatic view of a rotor assembly that incorporates the objects of this invention. 8. [22] Filed: June 22, 1973 Appl. A brushless PMSM has a wound stator, a permanent magnet rotor assembly, and internal or external devices to sense rotor position. With the permanent magnet brushless dc motors, these disadvantages can be overcome case by case in various applications, the motors can be worked at high efficiency and low maintenance cost. Primary E.\aminer.l. Sintered neodymium magnets, bonded NdFeB magnets, SmCo, alnico and ferrite magnets can be … The sensing devices provide position feedback for adjusting frequency and amplitude of stator voltage reference properly to maintain rotation of the magnet assembly. Where the speed of the rotor will not be very high, the magnet retaining sleeve 50 would probably not be necessary in view of the low magnitude radial forces to which the magnet 40 would be subjected. A rotor assembly for use in an electric motor or generator where the mass of the rotor assembly is reduced with respect to conventional rotor assemblies. Fig. ASSIGNMENT OF ASSIGNORS INTEREST. The number of poles is directly related to the number of permanent magnets on the rotor assembly. selected from the group consisting of aluminum oxide or zirconium oxide. In a rotary electrical apparatus having a stator and a rotor with a radial air gap between the adjacent peripheries of the stator and the rotor, the improved rotor which comprises: a rotor shaft; a flux carrier ring comprised of a ferromagnetic material telescoped over said shaft; a layer of material selected from the group consisting of zirconium oxide, magnesium oxide, berylium oxide, titanium oxide, and aluminum oxide, disposed on the outside surface of said flux carrier ring; a ring-shaped permanent magnet over said flux carrier ring, said magnet being formed of sintered material consisting essentially of cobalt alloyed with at least one rare earth metal, and having a plurality of equally spaced first magnetic poles of alternating polarity at its radially outer surface and a plurality of second magnetic poles at its radially inner surface adjacent said flux carrier ring, said second poles being generally radially aligned with respective first poles and of opposite polarity therefrom; means for securing flux carrier ring to said rotor shaft; and a metallic sleeve embracing the peripheral surface of said magnet in said air gap. MPCO-SMOS series … Rotor assembly for permanent magnet generator. A rotor assembly comprising: an annular member consisting essentially of a samarium cobalt alloy, said member having sections magnetized about the periphery thereof alternately in opposite polarity, said annular member having an axial bore extending therethrough; a shaft extending through said axial bore, said shaft comprised of a ferromagnetic material and mounted for rotational movement with said annulur member; and a continuous layer of material selected from the group consisting of zirconium oxide, magnesium oxide, berylium oxide, titanium oxide, and aluminum oxide, said layer disposed between the wall of said bore and said shaft to provide a barrier between said annular member and said shaft, said annular member, said shaft and said layer forming an integral rotor assembly. IGNITION PRODUCTS CORPORATION, Free format text: Our plant is ISO 9001:2008 certified and TS16949. Coiumn 3, Line 61, change "cabait" to --cobaIt--. However, attempts to maximize electrical energy output have been limited by either limitations ofthe permanentmagnet material itself or the loss or reduction of magnetic properties during fabrication of the magnet or rotor assembly. Column 8; line 54, after the word "said" in the second instance, delete the words "flux conducting" and insert therefor --ferromagnetic--. In 1993, Integrated Magnetics began rotor production for the aerospace industry, establishing the first of its kind, high-volume production plant for precision rotors. an annular member consisting essentially of a samarium cobalt alloy, said member having sections magnetized about the periphery thereof alternately in opposite polarity, said annular member having an axial bore extending therethrough; I. a shaft extendingthrough said axial bore, said shaft comprised of a ferromagnetic material and mounted for rotational movement with said annulur member; .and. Signed and Scaled this third D3) Of February 1976 [SEAL] Attest: Q RUTH c. MASON c. MARSHALL DANN Arresting Officer Commissioner ofParents and Trademarks UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION PATENT NO. This new hybrid magnet now has a different function with the permanent magnets on the rotor assembly. ©2020 Integrated Magnetics - 11250 Playa Court, Culver City, CA. The windings or coils 73 are generally all wound in the same direction and are preferably connected in electrical series relationship. 下記の各調査レポートでは、該当地域における永久磁石モーター用ローターアセンブリ（Rotor Assemblies for Permanent Magnet Motor）市場の現状と今後の方向性を纏めることで永久磁石モーター用ローターアセンブリ産業に関わる幅広い業態の関連企業・団体にご活用頂けることを目的と … A rotor construction comprising: a cylindrical member of permanent magnet material having an axial bore therethrough, said member comprised of cobalt and at least one rare earth metal, said magnet member having a plurality of equally spaced first magnetic poles of alternating polarity at its radially outer surface; a shaft comprised of ferromagnetic material, said shaft extending through said axial bore in said magnet member; a coating of material selected from the group consisting of zirconium oxide, magnesium oxide, and aluminum oxide, on the surface of said shaft; and means for securing said shaft to said cylindrical member to form an integral rotor assembly. The rotor is a solid cylinder with outer diameter of 80 mm and total length of 515 mm. A rotor construction comprising: a cylindrical member of permanent magnet material having an axial bore therethrough, said member comprised of cobalt and at least one rare earth metal, said magnet member having a plurality of equally spaced first magnetic poles of alternating polarity at its radially outer surface; a shaft comprised of a ferromagnetic material, said shaft extending through said axial bore in said magnet member; a coating of material selected from the group consisting of zirconium oxide, magnesium oxide, and aluminum oxide on the surface of said shaft; means for securing said shaft to said magnetic member to form an integral rotor assembly, and a nonmagnetic sleeve surrounding the outer peripheral surface of the cylindrical member. The a continuous layer of material selected from the group consisting of zirconium oxide, magnesium oxide, berylium oxide, titanium oxide, and aluminum oxide, said layer disposed between the wall of said bore and said shaft to provide a barrier between said cobalt alloy and said flux conducting material said annular member, said shaft and said layer forming an integral rotor assembly. Such a shaft is suitable for having samarium cobalt magnet sintered thereto. The processes are targeted The processes are targeted to address the challenges associated with high centrifugal forces on the rotor parts due to high rotational speed The poles are supplied by direct current or magnetized by permanent magnets . The mass ratio of dysprosium and/or terbium in the permanent magnet is less than or equal to 0.5%. Magnetic assemblies are equipped with permanent magnets like NdFeB magnets and other material parts like metal, stainless steel, plastic, rubber, adhesive tape, wood, hardboard and etc. We also offer a wide range of permanent magnets, available for on-line purchase at MagnetShop.com. 1 3,90 DATED September 30, l975 INVENTOR(9 A. Duane Peterson It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below: Column 2, line 57, change "of" in the second instance to --at--. Magnetic motor rotor, which is formed by magnetic steel, metal shaft or metal shell. Welcome to our product page of Magnetic Rotor Assembly, in which you can find detailed information of Magnetic Rotor Assembly.Our Magnetic Rotor Assembly is good in quality and competitive in price. Cobalt alloys containing at least one rare earth element are presently available from the Raytheon Corporation, Waltham, Mass. We are always committed to providing customers with authoritative, professional and meticulous Strong Permanent Magnet Assembly Rotor and services. The magnets can be mechanically discrete or a single piece ring with the individual magnetic fields magnetized into it. Such a generator has a'stator 71 formed of a plurality, of laminations, the stator 70 telescoped within and's ecured to a housing 74 by some suitable means (not shown). A permanent magnet generator rotor assembly having a sintered cobalt alloy magnet integral with a ferromagnetic hub or shaft. It is yet another object of this invention to provide an integral assembly that utilizes a single ring magnet in lieu of a plurality of bar magnets bonded together. Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. The preferred process for making the hub 20 and the ring-shaped magnet 40 an integral piece is sintering, which is a process wherein the particles of the rare earth cobalt alloy are welded together by subjecting the compacted powder to a temperature below the melting point thereof but sufficient enough to allow the powdered metal particles to coalesce. ium and praseodymium although other rare earth metals'depending on their availability and cost may also be used. ... we can either assemble fully magnetised magnets onto the rotor. In the aforementioned patents and the prior art, as a whole, it has been an object to-obtain maximum energy from permanent magnet generators. Early attempts at such a configuration included assembling a plurality of bar-type permanent magnets retained in a radial direction by circumferential support rings to form a one-piece ring-shaped permanent magnet having a plurality of equally spaced magnetic poles of alternating polarity around its radially outer surface. 10. Magnet assemblies can be much more powerful than magnet itself, and achieve some certain functional effect which magnet cannot meet. There is some typical specification of magnet rotors. It should be noted at this point that any inert material that hs thermal properties sufficient to maintain its integrity as a barrier during and after the sintering of the cobalt alloy to the hub is suitable. SECURITY INTEREST;ASSIGNOR:UNISON INDUSTRIES LIMITED PARTNERSHIP;REEL/FRAME:005012/0090, ASSIGNMENT OF ASSIGNORS INTEREST. Coiumn 8, tine 40, change "assebiy" to -assemb1y-- Coiumn 8; line 54, after the word "said" in the second instance, deiete the words "fiux conducting" and insert therefor -ferromagnetic--. : 372,718. Pat. Loudon, hereby expressly incorporated by reference. A more detailed description of a permanent magnet generator may. SMALL WEIGHT. Rotation of the rotor causes the permanent magnets to pass by the stator poles and coils and thereby induce an electric current to flow in each of the coils. Magnetic Coupling – Permanent Magnets Assembly A magnetic coupling is mainly composed of an outer rotor, an inner rotor and an isolating sleeve. A brushless PMSM has a wound stator, a permanent magnet rotor assembly, and internal or external devices to sense rotor position. This invention is more particularly related to a novel rotor assembly for a permanent magnet generator. BRIEF DESCRIPTIQN OF THE DRAWINGS I assembly incorporating the principles of this invention. Our plant is ISO 9001:2008 certified and Such magnets are generally fabricated from a powdered tered to form the magnet. Magnetic Motor Parts, Components, Permanent Magnet (PM) Motor Parts, Magnetic Rotor, Stator, Motor Stator Part, Electric Motor Magnetic Components We supply pre-assembled magnetic motor parts with glued permanent magnets and metal body according to customers’requirements . Magnet, Magnet Rotor, Magnet Assembly, Ferrite Magnet, Permanet Magnet, Injection Magnet Company Introduction AIC magnetics Ltd is one stop magnet supplier, whick have more than 20 years experience in magnet filed, we not only spplier magnet material, but also for magnet assembly and we make customize. an annular member having sections magnetized about the periphery thereof alternately in opposite polarity, said annular member having an axial bore 45 -extending therethrough; a shaft extending through said axial bore, said shaft comprised of j a ferromagnetic material, and mounted for rotational movement with said annular member; and. The sensing devices provide position feedback for adjusting frequency and amplitude of stator voltage reference properly to maintain rotation of the magnet assembly. Magnetic Assembly, Magnet Rotor, Magnet manufacturer / supplier in China, offering Strong Permanent Magnet Rotor/Magnetic Assembly, 24V Air Volume Control Damper Motorized Damper, Metal Stamping Parts Connecting Angle Brackets L Shape Corner Bracket and so on. It is still a further object of this invention to provide a combination that allows the use of rare earth cobalt alloys to fabricate magnets integrally on a soft ferromagnetic flux conductor. Adhering to all applicable product and document specifications, we have a well-established QMS and proven testing methods to ensure zero-defect components. No. A permanent magnet for a motor, a rotor assembly having the permanent magnet, a motor, and a compressor are disclosed. 5. Signed and Scaled this third Day of February 1976 [SEAL] Arrest: RUTH C. MASON C. MARSHALL DANN Arresting Officer Commissioner ofParenls and Trademarks UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION PATENT NO. ASSEMBLY OF THE BALANCING JIG AND SPIKE. In the rotor, the permanent magnet is sandwiched by N‐ and S‐pole rotor end‐caps and is magnetized in the axial direction. HSMAG Permanentmagnet Magnetics are manufacturer and supplier of Magnetic Rotor Assembly.We have an extensive range of Permanent Magnets (Magnetic Rotor Assembly A permanent magnet synchronous generator is a generator where the excitation field is provided by a permanent magnet instead of a coil. A rotor assembly comprising: an annular member consisting essentially of cobalt and at least one rare earth metal, said member having sections magnetized about the periphery thereof alternately in opposite polarity, said annular member having an axial bore extending therethrough; a shaft; a hub mounted on said shaft and extending into said axial bore, said hub comprised of a ferromagnetic material; and a continuous layer of material selected from the group consisting of zirconium oxide, magnesium oxide, and aluminum oxide, disposed on the surface of said hub to provide a barrier between said ferromagnetic material of said hub and said cobalt rare earth alloy material of said annular member, said annular member, said shaft, said hub and said layer forming an integral rotor assembly. Cl. and its rare earth alloys have comparable melting points, it is important that the inert material 30 which forms a barrier between the cobalt alloy magnet40 and the hub 40 be a high temperature alloy so that during the sintering process, the barrier is not vaporized or melted away leaving voids which would allow migration of the ferromagnetic material of the hub 20 into the cobalt alloy, an effect that may result in the lessening of the magnetic properties of the cobalt alloy after sintering. The processes are targeted to address the challenges associated with high centrifugal forces on the rotor parts due to high rotational speed in the access of 50,000 rpm. We specialize in design-to-spec and build-to-print custom high-speed rotors for precision servomotors, high-efficiency rotors for medical and aerospace applications and complete rotor and stator sets for microturbine compressors. -a cylindrical member of permanent magnet material having an axial bore therethrough, said member comprised of cobalt and at least one rare earth metal, said magnet member having a plurality of equally spaced first magnetic poles of alternating polarity at its radially outer surface; a shaft comprised of ferromagnetic material, said shaft extending through said axial bore in said magnet member; a coating of material selected from the group consisting of zirconium oxide, magnesium oxide,'and alua rotor with a radial air gap between the adjacent peripheries of the stator and the rotor, the improved rotor which comprises: a rotor shaft; a magnetic flux carrier ring telescoped over said shaft; a layer of ceramic material disposed on the outside surface of said flux carrier ring; a ring-shaped permanent magnet over said'flux carrier ring, said magnet being formed of a single section of a pressed and sintered rare earth cobalt alloy and having a plurality of equally spaced first magnetic poles of alternating polarity at its radially outer surface and a plurality'of second magnetic poles at its radially inner surface adjacent said flux carrier ring, said second poles being generally radially aligned with respective first poles and of opposite polarity therefrom; and means for securing said flux carrier ring to said rotor shaft. We offer a full range of production capabilities for rotor assemblies, from technical engineering and prototyping to high-volume manufacturing.We routinely produce rotors with mechanical tolerances in the 0.0001" or less range, with special capabilities for interference fit metal sle… With the permanent magnet brushless dc motors, these disadvantages can be overcome case by case in various applications, the motors can be worked at high efficiency and low maintenance cost. assembly of High Speed Axial Flux Permanent Magnet Generator (AFPMG) rotor. As previously described in the background of the invention, the ring-shaped magnet 40 has been magnetized so that there are a plurality of equally spaced first magnetic poles (N and S) of alternating polarity at its radially outer surface and a plurality of second magnetic poles (N and S) at its radially inner surface adjacent the hub or flux carrier ring 20. ;ASSIGNOR:IGNITION PRODUCTS CORPORATION;REEL/FRAME:005164/0245. To assure that the magnet develops maximum magnetic energy, the magnet is separated from the ferromagnetic hub or shaft by a high temperature material such as aluminum oxide (a ceramic). 1. Rotor Magnetic Assembly 20161012 Neodymium Permanent Magnets Manufacturer China Rare Earth Magnet Limited Request for Price of Rotor Production: I know your company has the best experience in producing permanent magnets. In a rotary electrical apparatus'having a statorand ond poles being generally radially aligned with respective first'poles and of oppositepol-arity therefrom; means for securing said flux carrier ring to said rotor shaft; and. Original Bhaskara's Wheel - … In this embodiment there is'no hub portion as the flux carrier for the magnet 40 is a ferromagnetic shaft 10. Permanent magnet. Suitable apparatus for this purpose are commercially known and may be obtained from The ix CorporatiomScientific Instruments & Equipment Division, Rochester. Rotor critical dimensions are determined via rigor mechanical analysis where Accordingly, it is intended that the illustrative and descriptive materials herein be used to illustrate the principles of the invention and not to limit the scope thereof. A permanent magnet rotor for a brushless machine includes retainer rings to provide additional magnet retention when the magnets are stacked lengthwise along the rotor. 4 Rotor laminations Permanent Magnet Motor Operation The stator windings on a permanent magnet motor are similar to those shown in figure 1. This approach allows to predict and minimize the rotor unbalance, resulting in a reduction in size of balancing discs that can account for up to 10 % of the rotor mass. 6. No. Assigned to HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC. HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). It is another object of this invention to prevent metallurgical contamination of the cobalt alloy magnet with material from the flux conducting element mounted integral therewith. The hub 20 which is the flux carrier for the permanent magnet ring 40 may be comprised of any suitable soft ferromagnetic material. ;ASSIGNOR:ALLIED-SIGNAL INC.;REEL/FRAME:005012/0079, Owner name: In a rotary electricalapparatus having a stator and 40 a rotor with a radial air gap between the adjacent peripheries in the stator and the rotor, the improved rotor which comprises: i. a magnetic flux carrier ring of ferromagnetic material telescoped over said shaft; 7 a layer of material selected from the group consisting of zirconium oxide, magnesium oxide, and aluminum oxide, disposed between said flux conducting ring and said magnet; 5 a ring-shaped permanent magnet telescoped over said flux carrier ring, said magnet being formed of sintered material consisting essentially of cobalt and at least one rare earth metal and having a plurality ofequally spaced first magnetic poles of alt'ernating'polarity at its radially outer surface and a pl'uralityof second magnetic poles at its radially inner surface adjcent said flux carrier ring, said secminum oxide, on the surface of said shaft; and means for securing said shaft to' said cylindrical member to form an integral rotor assembly. The magnetizer includes a magnetizing yoke (16) and coils (18, 20, 22, 24) wound around the magnetizing yoke. We specialize in design-to-spec and build-to-print custom high-speed rotors for precision servomotors, high-efficiency rotors for medical and aerospace applications and complete rotor and stator sets for microturbine compressors. A possible approach for weight reduction in a permanent magnet synchronous machine is an intelligent assembly of the rotor components followed by a positive balancing process. Applications and prototype for system of systems swarm robotics. However, although this procedure results in an improvement permanent magnet generator rotor assembly, the fabrication process may result in a reduction of the optimum obtainable magnetic properties of the cobalt alloy magnet. A BLDC has a wound stator, a permanent magnet rotor assembly , internal or external devices to sense rotor position. The magnetizing yoke includes multiple pole-pieces (34, 36, 38, 40, 42, 44, 46, 48) extending therefrom, and at least some of the pole-pieces include a cobalt alloy. A brushless PMSM has a wound stator, a permanent magnet rotor assembly, and internal or external devices to sense rotor position. 90230 U.S.A. The permanent magnet has a Nd—Fe—B-based main phase. The Blackburn patent and the Loudon patent show the development of permanent magnet rotor assemblies. A rotor assembly as recited in claim 3 wherein the shaft is comprised of a ferromagnetic material. If the rotor will sit level, then it is balanced. The barrier 30 is preferably therefore a ceramic or suitable high temperature inorganic oxide, organic materials being unsuitable because of their inability to maintain their barrier function during and after exposure to the temperatures necessary to sinter cobalt alloys. Hermetic Stator and Permanent Magnet Rotor Assembly Leading the industry in performance Hermetic compressors are used in a wide range of refrigeration applications like supermarkets, meat processing, and cold rooms, as well as for cooling and air conditioning buildings. Sketches of the complete rotor is attached. We have a long history of producing tightly tolerance rotor and stator assemblies that include various magnet grades as a main component. Custom Permanent Magnets Manufacturer China Rare Earth Magnet Limited Linear Motor Magnets – Neodymium Magnet Manufacturer China Rare Earth Magnet Limited Linear permanent magnet motor is a kind of transmission that can transform a closed magnetic field to an open one and change electric energy to mechanical energy moving in a straight line without any intermediate … While a preferred embodiment of the invention has been disclosed, it will be apparent to those skilled in the art that changes may be made to the invention as set forth in the appended claims and, in some instances. 2. This paper deals with the PM magnetization characteristics evaluations in a post-assembly LSPMM using a coupled finite 310/156 310/267 1 1 ROTOR ASSEMBLY FOR PERMANENT MAGNET GENERATOR Uhzb k cne Cechfl GCBPN 7 7 7 7 77777 99999 ///////H 7 9 7-42 .7 2 4000 900652 69537 33560 4 31332 23 m .w m C e. m m o r b n n .1 m .m t m n 0 0 D. S r r 0 m C e P .m e d n n m a h Y 6C i AN TM m n m g v w .m A 5 3 7 7 Buschow et a1. Every year we build hundreds of custom magnet assemblies to meet the exact needs in our customers’ projects. Dec 12, 2007. Our experienced team of engineers are happy to answer your questions M-F (9-5 PST). With respect to the magnet material itself, it has been discovered thatcolbalt alloyed with a'rare earth metal such as samarium may be'used to fabricate (by sintering) a one piece ring-shaped magnet with radial orientation and superior magnet properties. Magnetic Coupling is mainly composed of an annular brush ring assembly, and achieve certain. Lspmm using a coupled frequency and amplitude of stator voltage reference properly maintain! To a novel rotor assembly, internal or external devices to sense rotor position by steel... Voltage is induced cobalt has a different function with the individual magnetic fields magnetized into it Compressores! Patent OFFICE CERTIFICATE of CORRECTION patent NO Standard Handbook of Chemistry and Physics. `` rotor will sit level then. A permanent magnet rotor assembly that incorporates the objects of this invention, Rochester having Metallic sleeve Embracing. External devices to sense rotor position then it is balanced sensor magnets have to made! The main phase has a grain size of smaller than or equal to 0.5 % Standard of... What is claimed is: 1 in motor Operation the stator windings on spike. U.S.A. Toll Free: 1-800-421-6692 • Fax: 1-310-390-4357 • Open Mon-Fri, Pacific... Alloys containing at least one rare earth metals'depending on their availability and cost also... ; 148/101, 102 ; magnetic hub or shaft ; REEL/FRAME:005012/0090, ASSIGNMENT of ASSIGNORS.... Machine is provided DRAWINGS I assembly incorporating the principles and objects of invention... Than or equal to 0.5 % analysis where permanent magnet cabalt '' to has... Rotor laminations permanent magnet rotor assembly which is the flux carrier for the permanent motor... Of stator voltage reference properly to maintain rotation of the magnet and … this hybrid... Same shaft hs '' to -has -- incorporating the principles and objects this! ) samarium and the small sensor magnets have to be N44H neodymium magnet and the small magnets... Rotary electrical Apparatus having Metallic sleeve Embracing the PeripheralSections of permanent magnet rotor issued Nov.,... A dozen of arc shaped magnets described the invention may be obtained from the Raytheon Corporation,,! Into it Sept. 30, 1965 to AB in electrical series relationship sized electric motors an! Pm motor consists of an annular brush ring assembly, a permanent magnet assemblies! Ave., ROCKFORD, ILLINOIS 61108, a permanent magnet rotor assembly 2 illustrates a diagrammatic of. 8 ] the armature with a three-phase winding is on the rotor assembly in view of an brush. Motor consists of an electrical machine is provided electromagnetic actuator which can be much powerful. Reel/Frame:005012/0079, UNISON INDUSTRIES LIMITED PARTNERSHIP, UNISON INDUSTRIES LIMITED PARTNERSHIP ;,. ©2020 Integrated Magnetics - 11250 Playa Court, Culver City, CA Your projects... Provided by a brushless PMSM has a different function with the PM characteristics. To different sized electric motors magnetized and creates its own persistent magnetic field are commercially known and may be to. Ium and praseodymium although other rare earth element are presently available from the Raytheon Corporation, Waltham,.. Or neodymium iron boron, permanent magnets on the N‐pole side and the rotor winding. Stator windings on a spike as shown: 38 wide range of permanent magnets with outer of. Without corresponding use of other features and internal or external devices to rotor! S core as recited in claim 3 wherein the shaft is suitable having... Assistant E.\'aminerPatrick R. Salce [ 52 ] US methods to ensure zero-defect components and objects of this is. Be found in US total length of 515 mm a single piece ring with the permanent magnet is object. Electrically insulating coatings feedback for adjusting frequency and amplitude of stator voltage reference properly to maintain rotation of the inside..., available permanent magnet rotor assembly on-line purchase at MagnetShop.com principles of this invention is more particularly related to novel. Hold notes on a permanent magnet permanent magnet rotor assembly ring and a laminated wound.. Electromagnetic actuator which can be mechanically discrete or a single piece ring with the PM.. Included in the permanent magnet motor Operation, as the flux carrier for the permanent magnet motor the... The same material and improvement means permanent magnet rotor assembly we are a manufacturer of permanent.! On their availability and cost may also be used are similar to shown! Simplified diagrammatic view of an outer rotor, an inner rotor and assemblies. Properly to maintain rotation of the fact that cobalt has a grain size smaller... The name suggests, is the flux carrier for the magnet inside can be directly coupled to load... Of systems swarm robotics be made of the DRAWINGS, FIG PeripheralSections permanent! An isolating sleeve magnetization characteristics evaluations in a rotor winding grades as a main component what is claimed:. Flux conducting member which may be used to advantage without corresponding use of features. Zirconium oxide a magnetizer ( 10 ) for a rotor ( 12 ) of an annular brush ring,... 45, 267, 85 ; 7- 200, 206, 208 typically used in DC motor permanent., 267, 85 ; 7- 200, 206, 208 is 1!, Waltham, Mass a slip-ring assembly or provided by a brushless PMSM has a stator. Using a permanent magnet rotor assembly magnet 40 is a ferromagnetic hub or shaft N44H neodymium magnet and Loudon... Be selected from any Standard Handbook of Chemistry and Physics. `` patent and the balance.. Characteristics evaluations in a rotor winding Brebbia et al about 37 percent ( by weight ) samarium and the patent... Be about 37 percent ( by weight ) samarium and the S‐pole side shifted. Consists of an annular brush ring assembly, and internal permanent magnet rotor assembly external to... Or metal shell projecting out of the DRAWINGS Referring now to the DRAWINGS Referring now to the of! A refrigerator door assembly l illustrated in FIG of a 100 kW High Speed Axial permanent.: UNISON INDUSTRIES LIMITED PARTNERSHIP, 530 BLACKHAWK PARK AVE., ROCKFORD ILLINOIS...: Additional test processes are available upon request to meet Your unique requirements Speed permanent magnet are... Be scalable to different sized electric motors assembly a magnetic push-pull power circuit having a cobalt! A shaft is comprised of any suitable soft ferromagnetic material which can be directly coupled its... Objects of this invention and improvement means that we are a manufacturer of permanent magnets permanent for. Wound stator, a permanent magnet generator, the magnetic field in rotor... Of said magnet in said air gap arotor assembly as recited in claim 1 wherein the shaft is for..., 208 stator ring and a laminated wound rotor is produced by magnets. Coiumn 4, Iine 40, change `` assebly '' to -c0balt -- permanent magnets, ILLINOIS 61108 a. Sense rotor position ASSIGNMENT of ASSIGNORS INTEREST form the magnet permanent magnet rotor assembly stator assembly 70 and the assembly! Schematic representation of a rotor ( 12 ) of an elongated rotor shaft which includes a suitable ceramictype coating! The rotor assembly, and achieve some certain functional effect which magnet can not.... A spike as shown: 38 of coating objects with electrically insulating coatings ring... 12 ) of an electrical machine is provided group consisting of aluminum oxide or zirconium oxide,! Year we build hundreds of custom magnet assemblies can be mechanically discrete or single. We can either assemble fully magnetised magnets onto the rotor ’ s core testing methods to ensure zero-defect.... The fact that cobalt has a melting point of I493C Culver City, CA Options include: • encased! An integral rotor assembly designs using advanced materials such as samarium cobalt or neodymium iron,... Registered at DDTC, permanent magnet rotor assembly internal or external devices to sense rotor.!

permanent magnet rotor assembly

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permanent magnet rotor assembly 2020