-
公开(公告)号：US11646626B2
公开(公告)日：2023-05-09
申请号：US17486450
申请日：2021-09-27
Applicant: Black & Decker Inc.
Inventor： Colin M. Crosby , Ryan F. Schroeder
CPC classification number: H02K5/15 , H02K1/146 , H02K1/185 , H02K5/161 , H02K7/145 , B25F5/02 , H02K15/16 , H02K2201/03
Abstract: A brushless motor includes a stator and a rotor rotatably received within the stator, the rotor including a rotor shaft, a rotor body mounted on the rotor shaft and including axial slots, permanent magnets disposed within the axial slots, and a rotor end cap provided at an end of the rotor body to axially retain the permanent magnets within the slots. The rotor end cap includes an outer planar portion that is in contact with the end of the rotor body, and ribs angularly extending from the outer planar portion towards a center portion forming openings therebetween to allow passage of air between adjacent openings in thermal contact with the end of the rotor body.
-
公开(公告)号：US20190123627A1
公开(公告)日：2019-04-25
申请号：US16105452
申请日：2018-08-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Michal BIELEN , Mariusz MALIK
CPC classification number: H02K26/00 , F16K31/04 , H02K2201/03 , H02K2213/09
Abstract: A torque motor for a servovalve, said torque motor comprising a set of pole pieces comprising a first pole piece and a second pole piece. An armature is also provided between the first pole piece and the second pole piece, said armature configured to provide air gaps (AG1-AG4) between the armature and the first pole piece, and the armature and the second pole piece. The armature is configured to rotate about a centre point (CP). The set of pole pieces is also adapted to rotate around the centre point (CP) such that the air gaps (AG1-AG4) can be adjusted.
-
公开(公告)号：US20180337570A1
公开(公告)日：2018-11-22
申请号：US15761455
申请日：2016-01-27
Applicant: Mitsubishi Electric Corporation
Inventor： Koji YABE , Yoshikazu FUJISUE , Kazuya KUMAGAI , Takahiro TSUTSUMI
CPC classification number: F04B39/00 , F04B35/04 , H02K1/02 , H02K1/27 , H02K1/276 , H02K15/03 , H02K2201/03 , H02K2213/03
Abstract: A magnetizing method includes the steps of preparing a rotor comprising a rotor core having a magnet insertion hole and a permanent magnet provided in the magnet insertion hole, placing the rotor so as to face a tooth around which a winding is wound, rotating the rotor in a first rotating direction by a first angle θ1 from a rotational position where a center of the magnet insertion hole in a circumferential direction of the rotor core faces a middle portion between both ends of the winding in the circumferential direction and supplying electric current to the winding, and rotating the rotor in a second rotating direction opposite to the first rotating direction by a second angle θ2 from the rotational position direction and supplying electric current to the winding. The second angle θ2 is smaller than the first angle θ1.
-
公开(公告)号：US20180226190A1
公开(公告)日：2018-08-09
申请号：US15941810
申请日：2018-03-30
Applicant: Advanced Magnet Lab, Inc.
Inventor： Rainer Meinke , Sasha Ishmael
CPC classification number: H02K16/025 , B22F9/04 , B60K7/00 , H01F1/0576 , H01F41/0266 , H01F41/0273 , H02K1/27 , H02K1/278 , H02K1/2786 , H02K3/28 , H02K3/42 , H02K15/03 , H02K16/02 , H02K21/12 , H02K2201/03
Abstract: A flux directed magnet and a method of manufacturing a flux-directed magnet in a reduced number of process steps is described and claimed. The present invention is, in an embodiment, a single-step manufacturing of flux directed magnet assemblies such as, but not limited to, Halbach arrays of arbitrary multipole order. Even tube-shaped flux directed magnet assemblies such as Halbach arrays with large aspect ratio, i.e. length to diameter, can be produced in single steps using the method of the invention. Alternatively, the present invention may be one step of a plurality of steps in a process for manufacturing of flux directed magnet assemblies.
-
公开(公告)号：US20180198338A1
公开(公告)日：2018-07-12
申请号：US15864604
申请日：2018-01-08
Applicant: Infinitum Electric Inc.
Inventor： Bernhard L. Schuler , Rich Lee , Jorgen Rasmussen
CPC classification number: H02K3/26 , H02K1/12 , H02K1/182 , H02K1/2773 , H02K1/2793 , H02K1/32 , H02K3/12 , H02K3/28 , H02K3/47 , H02K3/521 , H02K9/12 , H02K15/03 , H02K16/00 , H02K21/24 , H02K35/02 , H02K2201/03 , H02K2203/03 , H02K2211/03 , H02P31/00 , Y02B10/30 , Y02E10/725
Abstract: An axial field rotary energy device can include a rotor comprising an axis of rotation and a magnet. In addition, a stator can be coaxial with the rotor. The stator can include a plurality of stator segments that are coupled together about the axis. Each stator segment can include a printed circuit board (PCB) having a PCB layer comprising a coil. Each stator segment also can include only one electrical phase. The stator itself can include one or more electrical phases.
-
Patent Agency Ranking
公开(公告)号：US20180191209A1
公开(公告)日：2018-07-05
申请号：US15858873
申请日：2017-12-29
Applicant: Johnson Electric S.A.
Inventor： Yue LI , Maoxiong JIANG , Chuiyou ZHOU , Yong WANG , Xiaoning ZHU , Guihua LI , Yonggang ZHANG
CPC classification number: H02K1/17 , H02K1/24 , H02K1/2726 , H02K5/161 , H02K23/40 , H02K2201/03 , H02K2213/03
Abstract: A magnetic core of an electric motor includes a central portion and a plurality of teeth extending outwardly from the central portion, the teeth disposed along a circumferential direction of the central portion. Each tooth includes a tooth body, two neck portions and two crown portions, the neck portions respectively connecting the crown portions to the tooth body, the two crown portions respectively extending beyond opposite sides of the tooth body. Each of the two neck portions of each tooth has a minimum width which is 0.1˜0.3 times of the width of the tooth body. The present invention further provides an electric motor that employs the magnetic core which can increase the peak value of the cogging torque of the motor.
-
公开(公告)号：US20180183288A1
公开(公告)日：2018-06-28
申请号：US15885055
申请日：2018-01-31
Applicant: Regal Beloit America, Inc.
Inventor： Subhash Marutirao Brahmavar , Lester Benjamin Manz , Ludovic Andre Chretien , Changiz Rashidzadeh , Dan Mircea lonel
CPC classification number: H02K1/2773 , H02K3/02 , H02K15/03 , H02K21/16 , H02K2201/03 , H02K2213/03 , Y10T29/49012
Abstract: In one embodiment, a permanent magnet rotor is provided. The permanent magnet rotor includes at least one permanent magnet and a substantially cylindrical rotor core including an outer edge and an inner edge defining a central opening. The rotor core includes a radius R, at least one pole, and at least one radial aperture extending radially though the rotor core from the outer edge to a predetermined depth less than the radius. The at least one radial aperture is configured to receive the at least one permanent magnet. The rotor further includes at least one protrusion extending into the at least one radial aperture, the at least one protrusion positioned substantially along a bottom of the at least one radial aperture and configured to facilitate retention of the at least one permanent magnet within the at least one radial aperture.
-
公开(公告)号：US20180138796A1
公开(公告)日：2018-05-17
申请号：US15794052
申请日：2017-10-26
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Osamu YAMASHITA
IPC: H02K49/10
CPC classification number: H02K49/102 , F16D3/10 , F16D3/64 , H02K49/104 , H02K49/106 , H02K49/108 , H02K2201/03
Abstract: A rotational power transmission mechanism includes: an input shaft and an output shaft that are apart from each other; a first rotary member fixed to a tip end of the input shaft on an output shaft side of the input shaft; and a second rotary member fixed to a tip end of the output shaft on an input shaft side of the output shaft so as to face the first rotary member. Into recessed portions, projected portions are inserted, permanent magnets are respectively provided on a pair of contact surfaces of each recessed portion and on a pair of contact surfaces of each projected portion in such a manner that the recessed portion and the projected portion repel each other at the respective pairs of contact surfaces where the recessed portion and the projected portion come into contact with each other.
-
公开(公告)号：US20180138780A1
公开(公告)日：2018-05-17
申请号：US15494736
申请日：2017-04-24
Applicant: NovoMoto Limited
Inventor： Kwok Pun HO
IPC: H02K7/08
CPC classification number: H02K7/088 , H02K5/1677 , H02K2201/03
Abstract: An electric machine includes: a stator component; a rotor component, wherein a gap is formed between the stator component and the rotor component; and a bushing layer disposed between opposite surfaces of the stator component and the rotor component and configured to define the gap, wherein a thickness of the bushing layer is less than the gap.
-
公开(公告)号：US09899897B2
公开(公告)日：2018-02-20
申请号：US14650326
申请日：2012-12-21
Applicant: Kazuhiko Baba , Masahiro Nigo , Kazuchika Tsuchida
Inventor： Kazuhiko Baba , Masahiro Nigo , Kazuchika Tsuchida
IPC: H02K9/00 , H02K9/19 , H02K9/02 , H02K1/27 , F04D25/06 , F04C23/00 , F04C29/00 , H02K1/32 , H02K7/14 , F04C18/356
CPC classification number: H02K9/19 , F04C18/356 , F04C23/008 , F04C29/0085 , F04C2210/263 , F04D25/06 , H02K1/2706 , H02K1/2766 , H02K1/32 , H02K7/14 , H02K9/02 , H02K2201/03
Abstract: A permanent magnet buried type electric motor includes a rotator having a rotator core and a stator. The rotator core includes: a plurality of magnet accommodating holes formed as many as the number of poles; a plurality of permanent magnets; air holes through which a coolant and a refrigerant oil pass; and a fastening hole. The magnet accommodating hole is formed into a shape that projects toward a radially inner side and is recessed toward a radially outer side. The air hole portions and the fastening holes are arranged so as to be alternately positioned. The air hole portion is formed into such a shape that includes a portion extending in an arc shape along an outer peripheral surface of a rotary shaft in a circumferential direction of the rotator core so that an area of the air hole portion is larger than an area of the fastening hole.
-
-
-
-
-
-
-
-
-
Search Results
564
records
(took 0.021 seconds)
