US-12620845-B2 - Electromagnetic power transfer system

US12620845B2US 12620845 B2US12620845 B2US 12620845B2US-12620845-B2

Abstract

The invention relates to a stationary-rotational wireless power transfer system comprising a stationary primary electromagnetic interface providing a transverse magnetic field and a secondary electromagnetic interface spinning around an axis wherein a current is induced in a secondary electrical conductor. The primary interface can include conductor loops. The secondary conductor can be wound around a secondary magnetic conductor or can be oriented perpendicularly to the transverse magnetic field. The secondary magnetic conductor can be in a magnetic interaction with a primary magnetic conductor. The secondary electromagnetic interface can be configured to be an electric motor. The interfaces can be coupled with respective electrocomponents. The system can provide data transmission, modularity, power transfer between tracks and vehicles or offshore vessels. The system can comprise a shielding, an insulation, a thermal management system. A transverse magnetic field motor, a magnetic field driving method and an electric piston engine are proposed.

Inventors

Kamil Podhola

Assignees

Kamil Podhola

Dates

Publication Date: 20260505
Application Date: 20220703

Claims (20)

1 . A stationary-rotational wireless power transfer system comprising: a stationary primary electromagnetic interface including one or more primary magnetic conductors and providing a transverse magnetic field on its coupling side and a secondary electromagnetic interface including a secondary electrical conductor, wherein said secondary electromagnetic interface is configured to spin around a spin axis at a distance from said primary electromagnetic interface to induce a current in said secondary electrical conductor, said system characterized in that said stationary primary electromagnetic interface is substantially planar or forms a cylindrical pathway.
2 . The stationary-rotational wireless power transfer system according to claim 1 , wherein said primary electromagnetic interface includes one or more primary electrically conductive loops wound at least partially around said one or more primary magnetic conductors.
3 . The stationary-rotational wireless power transfer system according to claim 1 , further comprising a secondary magnetic conductor, wherein said secondary electrical conductor is wound at least partially around a secondary magnetic conductor and wherein a winding axis is substantially perpendicular or parallel to said spin axis.
4 . The stationary-rotational wireless power transfer system according to claim 1 , wherein said secondary electrical conductor is oriented substantially perpendicularly to said transverse magnetic field.
5 . The stationary-rotational wireless power transfer system according to claim 1 , further comprising a secondary magnetic conductor configured to be in at least partial magnetic interaction with said primary magnetic conductor.
6 . The stationary-rotational wireless power transfer system according to claim 1 , further comprising a secondary magnetic conductor configured to provide a secondary magnetic field, wherein at least one said secondary magnetic field is selected from rotating magnetic fields, radially oriented magnetic fields, or combinations thereof.
7 . The stationary-rotational wireless power transfer system according to claim 1 , wherein said secondary electromagnetic interface is configured to be an electric motor or an electric generator, or combinations thereof.
8 . The stationary-rotational wireless power transfer system according to claim 1 , wherein said one or more primary magnetic conductors are at least partially interconnected to provide a magnetically conductive path.
9 . The stationary-rotational wireless power transfer system according to claim 1 , wherein said primary and secondary electromagnetic interface are coupled with a primary and a secondary electrocomponent, respectively.
10 . The stationary-rotational wireless power transfer system according to claim 1 , providing wireless data transmission.
11 . The stationary-rotational wireless power transfer system according to claim 1 , further comprising: a shielding to shield at least partially at least one element of said wireless electromagnetic power transfer system.
12 . The stationary-rotational wireless power transfer system according to claim 1 , further comprising: an insulation to insulate at least partially at least one element of said wireless electromagnetic power transfer system.
13 . The stationary-rotational wireless power transfer system according to claim 1 , further comprising: a thermal management system to thermally manage said power transfer.
14 . The stationary-rotational wireless power transfer system according to claim 1 , wherein said primary electromagnetic interface is coupled with an onshore track and said secondary electromagnetic interface is coupled with a vehicle.
15 . The stationary-rotational wireless power transfer system according to claim 1 , wherein said primary electromagnetic interface is coupled with a waterway track and said secondary electromagnetic interface is coupled with a water vessel.
16 . The stationary-rotational wireless power transfer system according to claim 1 , wherein said primary electromagnetic interface includes sections and connections to cope with a physical factor.
17 . A transverse magnetic field motor comprising: a first portion and a second portion mounted to relatively spin around a spin axis, wherein a transverse magnetic field is provided between said first portion and said second portion and that said second portion includes an electrical conductor substantially perpendicular to said spin axis, said motor characterized in that said first portion is substantially planar.
18 . The transverse magnetic field motor according to claim 17 , wherein said transverse magnetic field is at least partially provided from a stationary primary electromagnetic interface and wherein said motor is configured to function as a secondary electromagnetic interface configured to relatively spin around said spin axis at a distance from said stationary primary electromagnetic interface to induce a current in said electrical conductor.
19 . A magnetic field driving method for an electric motor comprising the steps of: finding one or more magnetic holes in a second portion of said electric motor, said portion mounted to relatively spin around a spin axis or to relatively move in at least one direction, said one or more magnetic holes providing a low reluctance path for a magnetic field; applying one or more voltages to one or more magnetic points to provide said magnetic field, said one or more magnetic points provided on a coupling side of a stationary first portion of said electric motor; finding another said one or more magnetic holes; applying said voltage to another said one or more magnetic points, wherein the steps are repeated till a signal be applied.
20 . An electric piston engine comprising: at least one piston coupled with a coupling mean and guided by a guiding mean, wherein said piston is within a cylinder being said guiding mean or wherein said piston is a rotary piston within a Wankel type engine, said engine characterized in that said guiding mean and said piston has at least partially a winding thereon, wherein an electrical current provided into said windings forces said piston to move along said guiding mean.

Description

TECHNICAL FIELD The invention relates to an electromagnetic power transfer system including a stationary rotational power transfer system, a transverse magnetic field motor, an electric motor driving method and an electric piston engine. BACKGROUND ART There is a wide range of wireless energy transfer systems including radiative, nonradiative, resonant, nonresonant, acoustical, optical systems, etc. The wireless power transfer systems are used in electronic, transport, medical devices industries, etc. There is an inductive power transfer using coupling coils, a capacitive power transfer using coupling capacitors, an electrodynamic power transfer using transducers. There is a static and a dynamic charging of vehicles at least partially electrically driven. There are driving methods for electric motors which works with Faraday's law of electromagnetic induction. There are machines (linear or rotative) providing low (and high) reluctance paths (switched or synchronous) which propose a design including first and second portions (a stator and a rotor, an active primary part with windings and a passive secondary part, etc.). Windings can be concentrated in one coil for each phase or partially concentrated. Linear designs can be single sided or double sided. Tubular structures can be provided. The structures can produce thrust or translation force. Windings can provide parallel or perpendicular magnetic field to the movement. The construction of DC motors with central stators and peripheral rotors is well known in the art, as well as the construction of fiber reinforced light weight rotors with resistance to the high stress forces. See for example Piramoon et al. U.S. Pat. No. 5,505,684 issued Apr. 9, 1996 entitled CENTRIFUGE CONSTRUCTION HAVING CENTRAL STATOR which discloses the centrifuge construction with a centrally located stator directly driving a peripheral ring shaped rotor. The stator has stationary electrical windings for generating a rotating and driving magnetic field. The rotor is supported by at least one bearing relative to the stator and includes a large central aperture defined by the inside of the ring which enables the rotor to fit over and rotate about the stator. At portions of the rotor adjoining the stator, the rotor is constructed from materials which are entrained by the rotating magnetic field. The centrifuge rotor is directly driven from the stator by entrainment of the rotor with the rotating and driving magnetic field generated from the electrical windings of the stator. In the usual case, this large central aperture in the rotor requires the use of composite materials in the rotor to resist radial centrifugal forces generated during centrifugation with hoop stress resistance from wound composite material fibers. RU2008142786/06A (Oleg Fjodorovic Mensik (RU) 2008 Oct. 28) discloses a commutator-free dc motor including rotor and stator in the form of cylindrical magnetic conductor inside which there are two sections, each consisting of several annular magnetic conductors. The motor comprises two sections with internal and external annular electrodes. Internal rotor can be made of an electromagnet or a permanent magnet. U.S. Ser. No. 17/668,401 (Kamil Podhola Feb. 15, 2022) co-pending patent application discloses an OUTER TURBINE SYSTEM which proposes a turbine with an axial inflow and a radial/axial outflow wherein turbine blades are disposed at an inner side of an outer rotating envelope, e.g., the turbine blades are oriented from an outer perimeter construction which can be metallic to a center of the turbine. The documents fail to disclose a stationary-rotational wireless power transfer system with a substantially planar stationary primary electromagnetic interface or with the stationary primary interface forming a cylindrical pathway and a spinning secondary electromagnetic interface. The documents fail to disclose the stationary-rotational wireless power transfer system configured to be an electric motor. The documents fail to disclose a transverse magnetic field motor comprising two relatively spinning adjacent portions providing the transverse magnetic field and including an electrical conductor perpendicular to the transverse magnetic field. The documents fail to disclose an electrical apparatus which can be configured to be an electric motor and/or an electricity generator and having salient magnetic conductors which can be rotor blades. The documents fail to disclose a (parallel or perpendicular) magnetic field driving method for an electric motor with steps of finding a magnetic hole, applying a voltage to a magnetic point, finding another magnetic hole, applying the voltage to another magnetic point and repeating the steps till a signal can be applied. The documents fail to disclose an electric piston engine. DISCLOSURE OF INVENTION The object of the present invention is to propose a stationary-rotational wireless power transfer system (SRPS) with a substantially planar stat