利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

486 条记录 (耗时 0.027 秒)

    MODELING METHOD OF STATOR WINDING AIR GAP FOR TEMPERATURE FIELD ANALYSIS OF AC TRACTION MOTOR
    31.
    发明申请
    MODELING METHOD OF STATOR WINDING AIR GAP FOR TEMPERATURE FIELD ANALYSIS OF AC TRACTION MOTOR 有权

    公开(公告)号：US20210013820A1

    公开(公告)日：2021-01-14

    申请号：US17037873

    申请日：2020-09-30

    申请人： Hunan University of Science and Technology

    发明人： Xiaoping ZHANG ,  Ping LIU ,  Sijian KUANG ,  Zhu ZHANG

    IPC分类号： H02P23/14 ,  H02K3/47 ,  G06F30/23

    摘要： A modeling method of a stator winding air gap for temperature field analysis of an AC traction motor includes: changing the width of an air gap of a stator winding equivalent model according to a set value of spacing; establishing a three-dimensional finite element model of the AC traction motor with the stator winding air gap; based on the three-dimensional finite element model of different widths of the air gap, analyzing a temperature field to obtain a temperature field distribution diagram of the AC traction motor; carrying out the numerical fitting according to data in the temperature distribution diagram to obtain a function relation between the air-gap width and the temperature of the stator winding equivalent model; and by measuring the actual temperature of a motor stator winding, calculating an optimal air-gap width corresponding to the modeling of the stator winding of the current AC traction motor.

    Process for Assembly of Air Core Motor-Generators
    33.
    发明申请
    Process for Assembly of Air Core Motor-Generators 审中-公开

    公开(公告)号：US20200313526A1

    公开(公告)日：2020-10-01

    申请号：US16368797

    申请日：2019-03-28

    申请人： Christopher W. Gabrys ,  Timothy S. Rodgers

    发明人： Christopher W. Gabrys ,  Timothy S. Rodgers

    IPC分类号： H02K15/06 ,  H02K3/28 ,  H02K1/27 ,  H02K1/18 ,  H02K21/22 ,  H02K3/47 ,  H02K15/03

    摘要： A process for assembly of a brushless air core motor-generator includes assembling a rotor formed from two spaced apart rotor portions having magnetic poles that drive magnetic flux circumferentially through the rotor portions and back and forth across an armature airgap between the rotor portions. An air core armature is made by coating a nonmagnetic armature form with a tacky adhesive layer, and winding armature windings in a winding pattern onto the form with a winding head, using wire comprised of bundled multiple individually insulated conductor strands that are electrically connected in parallel but are electrically insulated from each other along their lengths where located inside the magnetic flux in the armature airgap. The armature windings are adhered to the nonmagnetic form simultaneously as the winding head traverses the winding pattern while applying pressure to the wire against the tacky adhesive, so tack of the tacky adhesive layer holds the wire to the armature form during the winding process, in the winding pattern later required for magnetic torque production. The air core armature is inserted into the armature airgap and mounted to a stator of the motor-generator for production of magnetically induced torque between the rotor and the stator.

    DC induction motor driven by a unidirectional current induced in to a rotor ring
    34.
    发明授权
    DC induction motor driven by a unidirectional current induced in to a rotor ring 有权

    公开(公告)号：US10720817B1

    公开(公告)日：2020-07-21

    申请号：US16154687

    申请日：2018-10-08

    申请人： COLERIDGE DESIGN ASSOCIATES LLC

    发明人： Geoffrey A. Boyd

    IPC分类号： H02K17/02 ,  H02K17/16 ,  H02K41/035 ,  H02K3/47

    摘要： A motor is disclosed. The motor includes a stator with a stator coil to generate a periodic unidirectional field current flowing through the stator coil and a rotor. An air gap is disposed between the stator and the rotor. The rotor has at least one rotor ring, a portion of the rotor ring is disposed in the air gap. Due to the unidirectional magnetic field, a periodic electric current is induced in the rotor ring. The electric current flowing through the portion of the rotor ring disposed in the air gap flows in a first direction to rotate the rotor relative to the stator.

    Lightweight and efficient electrical machine and method of manufacture
    37.
    发明授权
    Lightweight and efficient electrical machine and method of manufacture 有权

    公开(公告)号：US10574110B2

    公开(公告)日：2020-02-25

    申请号：US15143931

    申请日：2016-05-02

    申请人： LAUNCHPOINT TECHNOLOGIES, INC.

    发明人： Geoffrey Alan Long ,  Bradley E. Paden ,  Michael Richard Ricci ,  David Brian Paden ,  Jonathan Gordon Sugar

    IPC分类号： H02K3/28 ,  H02K3/24 ,  H02K3/47 ,  H02K3/04 ,  H02K3/30 ,  H02K15/04 ,  H02K15/12 ,  H02K3/02 ,  H02K21/24

    摘要： A lightweight and efficient electrical machine element including a method of manufacture providing a stator winding for an electric machine which has a large portion of its volume containing electrically conductive strands and a small portion of its volume containing of an encapsulant material. The stator winding includes winding of a first phase by shaping a portion of a bundle of conductive strands into an overlapping, multi-layer arrangement. Winding of successive phases occurs with further bundles of conductor strands around the preceding phases constructed into similar overlapping, multi-layer arrangements. The multiple phases are impregnated with the encapsulant material using dies to press the bundles into a desired form while expelling excess encapsulant prior to the curing of the encapsulant material. The encapsulated winding is removed from the dies after the encapsulant has cured. The encapsulant coating on the strands may be activated using either heat or solvent. The stator winding may be pressed into a form which has cooling channels which increase the surface area, thus enhancing convective cooling, heat dissipation, and the electrical machine's efficiency.

    Electrical energy conversion system in the form of an induction motor or generator with variable coil winding patterns exhibiting multiple and differently gauged wires according to varying braid patterns
    38.
    发明授权
    Electrical energy conversion system in the form of an induction motor or generator with variable coil winding patterns exhibiting multiple and differently gauged wires according to varying braid patterns 有权

    公开(公告)号：US10523074B2

    公开(公告)日：2019-12-31

    申请号：US15912691

    申请日：2018-03-06

    申请人： MAESTRA ENERGY, LLC

    发明人： Miguel A. Linares

    IPC分类号： H02K3/28 ,  H02K1/27 ,  H02K3/47 ,  H02K3/32

    摘要： An induction motor assembly for converting an electrical input to a mechanical or rotating work output. A related generator variant converts a rotating work input to a converted electrical output utilizing the same efficiencies achieved by the present design. An outer rotatable component incorporates a plurality of magnets arranged in a circumferentially extending and inwardly facing fashion according to a first perimeter array, the outer component further incorporating a rotating shaft projecting from a central location. An inner concentrically arrayed and stationary component exhibits a plurality of coil sub-assemblies, each including a multi-wire and multiple winding braided configuration. The coil sub-assemblies are supported in an exteriorly facing fashion upon the inner stationary component according to a second perimeter array, such that a determined gap separates coil sub-assemblies from the inwardly facing magnets. A three phase current introduced typically to the outer stationary coils rotating the outer magnetic component with central projecting shaft.

    Linear motor, stage apparatus, and exposure apparatus
    39.
    发明授权
    Linear motor, stage apparatus, and exposure apparatus 有权

    公开(公告)号：US10459350B2

    公开(公告)日：2019-10-29

    申请号：US15788745

    申请日：2017-10-19

    申请人： NIKON CORPORATION

    发明人： Shigeru Morimoto ,  Tadahiro Kominami

    IPC分类号： G03B27/58 ,  G03F7/20 ,  H02K41/03 ,  H02K9/19 ,  H02K9/22 ,  H02K3/47 ,  H02K16/00

    摘要： A linear motor with high heat recovery efficiency that inhibits the rise in surface temperature is offered. The linear motor is disposed in a surrounding member (142) and facing a flow passage (142a) of a liquid for regulating temperature, and is provided with a coil unit (141) having at least a part thereof in contact with the liquid. The coil unit (141) is provided with a coil body (144), a mold layer (143) that covers the coil body and holds it in specific form, and a liquid protection layer (150) that covers the mold layer (143) and has liquid protection properties.