USOO9000647B2 (12) United States Patent (10) Patent No.: US 9,000,647 B2 Rapoport (45) Date of Patent: Apr. 7, 2015 (54) HIGH EFFICIENCY HIGH OUTPUT DENSITY (56) References Cited ELECTRIC MOTOR U.S. PATENT DOCUMENTS (76) Inventor: Uri Rapoport, Moshav Ben Shemen 5,396,140 A ck 3, 1995 Goldie et al. 310,268 (IL) 5,903,082 A 5/1999 Caamano 6,175,178 B1* 1/2001 Tupper et al. ................. 310,166 (*) Notice: Subject to any disclaimer, the term of this 6,259,233 B1 ck 658) ano f patent is extended or adjusted under 35 g: R g58. Shiki . 310,114 U.S.C. 154(b) by 318 days. 2004/0195931 A1* 10, 2004 Sakoda ......................... 310,268 2008/008.8200 A1* 4/2008 Ritchey......................... 310,268 (21) Appl. No.: 13/495,788 2012/0319518 A1* 12/2012 Rapoport ................. 310,156.12 (22) Filed: Jun. 13, 2012 k cited. by examiner O O Primary Examiner — John K. Kim (65) Prior Publication Data (74) Attorney, Agent, or Firm — The Law Office of Michael US 2012/O319518A1 Dec. 20, 2012 E. Kondoudis (57) ABSTRACT Related U.S. Application Data An electric motor that generates mechanical energy whilst increasing both the motor efficiency and the mechanical (60) Eyal application No. 61/497.536, filed on Jun. power density. The electric motor includes: a plurality of disk s Surfaces having a main longitudinal axis; a plurality of sta 51) Int. C tionary Support structures; and a rotating shaft affixed to the (51) Int. Cl. disk Surfaces. Each disk surface is coupled to an array of HO2K L/27 (2006.01) offset magnets. The magnets are arranged as matching mag HO2K 2L/2 (2006.01) netic pairs on two adjacent disk Surfaces to create a plurality HO2K 2L/24 (2006.01) of magnetic fields between the matching magnetic pairs. The (52) U.S. Cl. magnetic fields are titled at an angle A with respect to the CPC ................ H02K I/2793 (2013.01); H02K 1/27 main longitudinal axis. Each stationary Support structure has (2013.01); H02K 21/12 (2013.01); H02K 2 1/24 an electromagnetic coil array located in-between each of the (2013.01); H02K 220.1/06 (2013.01) matching magnetic pairs, which provides an axial magnetic (58) Field of Classification Search field when Voltage is applied on the electromagnetic coil. CPC ....... H02K 1/27; H02K 1/2793; H02K 21/12: Each of the electromagnetic coil array is titled at said angle A HO2K 21/24: HO2K 2201/06 with respect to the main longitudinal axis. USPC ................... 310/156.12, 156.37, 268, 156.36 See application file for complete search history. 16 Claims, 7 Drawing Sheets 40 A1 41a 41b. 41c Zn2 M 45 ZH --- U.S. Patent Apr. 7, 2015 Sheet 1 of 7 US 9,000,647 B2 : { x8:::::: M :38xxx xx 727. / U.S. Patent Apr. 7, 2015 Sheet 2 of 7 US 9,000,647 B2 U.S. Patent Apr. 7, 2015 Sheet 4 of 7 US 9,000,647 B2 40 Z M M M M iSE U.S. Patent Apr. 7, 2015 Sheet 5 Of 7 US 9,000,647 B2 U.S. Patent Apr. 7, 2015 Sheet 6 of 7 US 9,000,647 B2 U.S. Patent Apr. 7, 2015 Sheet 7 Of 7 US 9,000,647 B2 US 9,000,647 B2 1. 2 HIGH EFFICIENCY HIGH OUTPUT DENSITY tric electromagnet housing and at least one energizable elec ELECTRIC MOTOR tromagnet assembly including an overall amorphous metal magnetic core. The overallamorphous metal magnetic core is FIELD OF THE INVENTION made up of a plurality of individually formed amorphous 5 metal core pieces. The dielectric electromagnet housing has The present invention generally relates to mechanical core piece openings formed into the electromagnet housing power generation by rotational force generated via an electric for holding the individually formed amorphous metal core motor. pieces in positions adjacent to one another so as to form the The present invention particularly relates to a motor utiliz overall amorphous metal magnetic core. The device further ing the force exerted by an interaction between the magnetic 10 includes a control arrangement that is able to variably control fields of a plurality of permanent magnet devices on the rotor the activation and deactivation of the electromagnet using any and parallel magnetic fields of plurality electromagnetic coils combination of a plurality of activation and deactivation on the stator. parameters in order to control the speed, efficiency, torque, BACKGROUND OF THE INVENTION is and power of the device. U.S. Pat. No. 7,105,974 enclosed herein by reference, dis Motors, which are widely used all over the world in many closes a synchronous AC motor has a stator with stator poles instruments, come in various sizes and operational mode arranged as a plurality of circumferentially extending stator categories. The classic division of electric motors has been pole groups, with each stator pole group having a pair of that of DC type’s vs. AC types. A typical AC motor consists of 20 corresponding circumferentially extending loop-configura an outside stationary stator having coils Supplied with AC tion stator windings disposed adjacent on either side or a current to produce a rotating magnetic field, and an inside single Such winding disposed adjacent at one side, adjacent rotor attached to the output shaft that is given a torque by the stator pole groups being mutually circumferentially displaced rotating field. by a fixed amount corresponding to a specific electrical phase The ongoing trend toward electronic control clutters the 25 angle. Applying respective polyphase AC Voltages to the distinction, as modern drivers have moved the commutator windings produces a rotating magnetic field, such that cur out of the motor shell. For this new breed of motors, driver rents of mutually opposite direction flow in each pair. circuits are relied upon to generate sinusoidal AC drive cur Thus there is still a long felt need for an efficient electric rents or any other waveforms of desired shape. The two best motor which maximizes mechanical power output for a give examples are: the brushless DC motor, and the stepping 30 physical size by utilizing a comparable generator configura motor, both being polyphase AC motors requiring external tion. electronic control. Conversion of electrical energy into mechanical energy by SUMMARY OF THE INVENTION a motor via electromagnetic induction force is reverse to the operation of an electrical generator converting mechanical 35 energy to electrical energy. Inasmuch as a motor and a gen Accordingly, a principal object of the present invention is erator reciprocate conversion of mechanical and electrical to disclose an electric motor workable by applying Voltage to energy, based on physics principles there is a substantial an array of tilted electromagnetic coils affixed to the stator. correlation between the operation of an electric motor and an The interaction between the magnetic fields of the tilted coils electrical generator. 4 and corresponding tilted magnetic fields between matching The interrelation between electrical to mechanical energy pairs of magnetic device arrays generates a tilted force vector conversion and the inverse mechanical to electrical energy having a tangential component applying a rotational moment conversion, has led electric motor developers throughout the on the motor rotor. Thus, a generator configuration having years, to design electric motors with configurations adaptable Vertical magnetic field and vertical coil configuration can be to operate as electrical generators. 45 turned effortlessly into a motor via tilting the magnetic field U.S. Pat. No. 5,903,082 enclosed herein by reference, dis- of each device pair and likewise tilting the corresponding closes a device Such as an electric motor, an electric generator, coils. or a regenerative electric motor includes a rotor arrangement The configuration of powerful, distinct and uniform plu and a stator arrangement. The stator arrangement has a dielec- rality of magnetic fields with high magnetic flux density and tric electromagnet housing and at least one energizable elec- 50 matching tilted coils utilizing most of the motor Volume is tromagnet assembly including an overall amorphous metal adaptable to maximizing motor efficiency and mechanical magnetic core. The overallamorphous metal magnetic core is power per given physical size of the motor. made up of a plurality of individually formed amorphous In accordance with a preferred embodiment of the present metal core pieces. The dielectric electromagnet housing has invention, it is the object of the invention to disclose an core piece openings formed into the electromagnet housing 55 electric motor comprising: for holding the individually formed amorphous metal core (i) a plurality of Surfaces with an array of magnets affixed pieces in positions adjacent to one another so as to form the on each Surface accommodating a plurality of tilted overall amorphous metal magnetic core. The device further magnetic fields between opposite pairs of offset mag includes a control arrangement that is able to variably control netic devices located on any two adjacent Surfaces. the activation and deactivation of the electromagnet using any 60 (ii) a plurality of stationary Support structures each Sustain combination of a plurality of activation and deactivation ing an electromagnetic coil array; each of the coils is parameters in order to control the speed, efficiency, torque, disposed between each of the matching magnetic pairs. and power of the device. (iii) a rotating shaft affixed to the surfaces. U.S. Pat. No. 6,259,233 enclosed herein by reference, dis- Electrical voltage applied to the coils creates within each closes a device Such as an electric motor, an electric generator, 65 coil a axial magnetic field. Interaction between the coil mag or a regenerative electric motor includes a rotor arrangement netic field and the magnetic field of a corresponding device and a stator arrangement.