公开(公告)号：US11949311B2

公开(公告)日：2024-04-02

申请号：US16068681

申请日：2017-10-26

申请人： Roberto Sanchez Catalan

发明人： Roberto Sanchez Catalan

IPC分类号： H02K41/03 ,  H02K1/12 ,  H02K1/2753 ,  H02K3/28 ,  H02K3/47

CPC分类号： H02K41/031 ,  H02K1/12 ,  H02K1/2753 ,  H02K3/28 ,  H02K3/47

摘要： Halbach array of magnetically isotropic electromagnets, comprised of loosely-wound, spring-like nested electromagnetic coils, wound and arranged in close proximity in Halbach array sequence, encased in various combinations of powdered magnetic metal composite and binder, formed, wired, and assembled to serve as a stater and/or rotor of an electric motor or generator.

公开(公告)号：US11831228B2

公开(公告)日：2023-11-28

申请号：US17481486

申请日：2021-09-22

申请人： DENSO CORPORATION

发明人： Yuki Takahashi ,  Makoto Taniguchi

IPC分类号： H02K3/47 ,  H02K1/28 ,  H02K9/22 ,  H02K5/18 ,  H02K1/2786

CPC分类号： H02K9/22 ,  H02K1/2786 ,  H02K1/28 ,  H02K3/47 ,  H02K5/18

摘要： A rotating electrical machine includes a rotor and a magnet unit. The rotating electrical machine also includes a cylindrical stator and a housing. The stator is equipped with a stator winding made up of a plurality of phase windings. The stator is arranged coaxially with the rotor and faces the rotor. The housing has the rotor and the stator disposed therein. The rotor includes a cylindrical magnet retainer to which the magnet unit is secured and an intermediate portion which connects between a rotating shaft of the rotor and the magnet retainer and extends in a radial direction of the rotating shaft. A first region located radially inside an inner peripheral surface of a magnetic circuit component made up of the stator and the rotor is greater in volume than a second region between the inner peripheral surface of the magnetic circuit component and the housing in the radial direction.

公开(公告)号：US20230283137A1

公开(公告)日：2023-09-07

申请号：US18309742

申请日：2023-04-28

申请人： DENSO CORPORATION

发明人： YUKI TAKAHASHI

IPC分类号： H02K3/47

CPC分类号： H02K3/47

摘要： A field element includes magnetic poles having polarities alternate in a circumferential direction. A multi-phase armature winding includes a phase winding including winding segments for each phase. An armature is tooth-less and includes a cylindrical armature core. The winding segment includes a pair of intermediate conductor portions at a predetermined interval in the circumferential direction and link portions connecting the intermediate conductor portions in an annular shape. The intermediate conductor portions and the link portion include multi-wound conductive wire members. The intermediate conductor portions are disposed side by side along a curved surface on a peripheral surface of the armature core. The intermediate conductor portion has a rectangular transverse section. A dimension between the end surface of the intermediate conductor portion on the armature core side and the armature core in the radial direction differ in the circumferential direction.

公开(公告)号：US11682957B2

公开(公告)日：2023-06-20

申请号：US17088857

申请日：2020-11-04

申请人： TOYO AUTOMATION CO., LTD.

发明人： Kun-Cheng Tseng ,  Kuei-Tun Teng ,  Kai-Han Teng

IPC分类号： H02K3/47 ,  H02K41/03

CPC分类号： H02K41/031 ,  H02K3/47

摘要： A coil assembly includes coil units connected to a coil base. Each coil unit includes top, intermediate and bottom coil modules, each of which has spaced-apart first and second interaction sides, and two non-interaction sides connected to the first and second interaction sides to form an accommodating space. The first interaction sides of the intermediate and bottom coil modules are juxtaposed with each other in the accommodating space of the top coil module. The second interaction sides of the top and intermediate coil modules are juxtaposed with each other in the accommodating space of the bottom coil module. An ironless motor includes a magnetic rail assembly and the aforesaid coil assembly.

公开(公告)号：US20230130551A1

公开(公告)日：2023-04-27

申请号：US17507115

申请日：2021-10-21

申请人： NATIONAL CHENG KUNG UNIVERSITY

发明人： MI-CHING TSAI ,  MIN-FU HSIEH ,  KAI-JUNG SHIH ,  PO-WEI HUANG ,  LUCIO JOSE FERNANDO CACERES VERA ,  SHANG-HUI SHEN ,  JUNG-KUN CHIU ,  HSIN-YU CHIU

IPC分类号： H02K21/24 ,  H02K1/27 ,  H02K1/18 ,  H02K3/28 ,  H02K3/47

摘要： A motor and a coreless stator coil winding unit thereof are disclosed. The coreless stator coil winding unit includes an overlapping coil winding assembly and a non-overlapping coil winding assembly. The overlapping coil winding assembly includes a plurality of first coils arranged annularly and a plurality of second coils arranged annularly. The first coils and the second coils overlap with a phase difference. The non-overlapping coil winding assembly includes a plurality of third coils arranged annularly. The third coils are each located between an adjacent one of the first coils and an adjacent one of the second coils. Thus, the back electromotive force constant and torque constant of the motor have a better performance.

公开(公告)号：US20230075415A1

公开(公告)日：2023-03-09

申请号：US17759781

申请日：2021-01-18

申请人： MAXON INTERNATIONAL AG

发明人： Peter Ullrich AREND ,  Alexis BOLETIS

IPC分类号： A61M60/422 ,  H02K3/28 ,  H02K3/47 ,  H02K21/14 ,  A61M60/122 ,  A61M60/216

摘要： The present disclosure relates to a brushless DC electric motor, such as for an actuator unit of an implant, as for a cardiac assist system, with a stator with a hollow-cylindrical iron-free winding and a rotor which can rotate relative to the stator. A shaft has a number p of pairs of permanent-magnetic poles, and the winding has a number n of three-phase systems separate from one another. The number of n three-phase systems separate from one another, is varied based on a number p of pairs of permanent-magnetic poles, and the systems are arranged in a manner spatially offset from one another by an angle of 360°/n.

公开(公告)号：US11462980B2

公开(公告)日：2022-10-04

申请号：US17030290

申请日：2020-09-23

申请人： Jirong Lu

发明人： Jirong Lu ,  Yao Lu

IPC分类号： H02K16/02 ,  H02K3/47 ,  H02K7/08 ,  B64D27/24 ,  H02K5/173

摘要： The present invention discloses a ducted double-magnetic-circuit coreless motor special for electric aircraft, which is an open special motor with a hollow structure according to the technical invention and includes a housing, a main shaft, a coreless stator winding, an inner rotor structure and an outer rotor structure. The main shaft is arranged in the middle of the housing; the inner rotor structure is connected with the main shaft; the outer rotor structure is connected with the inner rotor structure; and the coreless stator winding is arranged between the inner rotor structure and the outer rotor structure. The coreless stator winding can generate an electromagnetic torque when current is applied; and the inner rotor structure and the outer rotor structure can fully induce the electromagnetic torque of the coreless stator winding and rotate about the main shaft simultaneously, thereby directly driving the electric aircraft to fly.

公开(公告)号：US20220302815A1

公开(公告)日：2022-09-22

申请号：US17612334

申请日：2019-05-24

申请人： General Electric Company

发明人： Ernst Wolfgang Stautner

IPC分类号： H02K55/02 ,  H02K3/47 ,  H02K11/01 ,  H02K9/20

摘要： An electric machine including an annular armature assembly and a non-rotating annular field winding assembly coaxial with the armature assembly and separated by a gap from the armature assembly. The field winding assembly including a field coil support structure having an annular array of recesses formed therein and extending about the field coil support structure. The field winding assembly further including a plurality of superconducting coils, each disposed in a recess of the annular array of recesses. A generator and a method for generating electrical power are disclosed.

公开(公告)号：US20220183241A1

公开(公告)日：2022-06-16

申请号：US17598669

申请日：2020-03-27

申请人： Positec Power Tools (Suzhou) Co., Ltd

发明人： Zhengwei LIU ,  Shiping JIAO ,  Haibo XIAO ,  Xuefeng YU ,  Qinghui YANG

IPC分类号： A01G20/47 ,  E01H1/08 ,  F04D25/06 ,  F04D25/08 ,  H02K3/47 ,  H02K5/20 ,  H02K9/06 ,  H02K11/00 ,  H02K11/30

摘要： The present invention relates to a garden blower. The garden blower includes: an extension rod; an air duct portion, disposed on one end of the extension rod; a motor; a fan; and an operating handle, spaced apart from the air duct portion in a longitudinal direction, where a ratio of a length of the air duct portion in the longitudinal direction to a length of the entire garden blower in the longitudinal direction is less than or equal to 60%, and a weight of the garden blower does not exceed 2 kg.

公开(公告)号：US11303190B2

公开(公告)日：2022-04-12

申请号：US17031581

申请日：2020-09-24

申请人： Jirong Lu

发明人： Jirong Lu ,  Yao Lu

IPC分类号： H02K16/02 ,  H02K3/47

摘要： Disclosed a rare-earth permanent-magnetic axial coreless generator with double magnetic circuits, including a main shaft, a coreless stator winding, an inner rotor structure connected with the main shaft and an outer rotor structure. The outer rotor structure and the inner rotor structure are spaced apart by the coreless stator winding and are connected with the main shaft; the coreless stator winding is arranged between the inner rotor structure and the outer rotor structure, to establish a generator structure with two magnetic field air gaps; when the main shaft drives the outer rotor structure and the inner rotor structure to rotate simultaneously under the action of an external force, a rotating magnetic field with double magnetic circuits is generated in the generator; and the coreless stator winding can simultaneously cut magnetic lines of the rotating magnetic field with double magnetic circuits by using contact surfaces inside and outside the winding.