-
公开(公告)号：US20230179042A1
公开(公告)日：2023-06-08
申请号：US18066810
申请日：2022-12-15
Inventor： Naoya Sasaki
CPC classification number: H02K1/276 , H02K1/16 , H02K2213/03 , H02K2201/03
Abstract: According to one embodiment, a rotary electric machine includes a stator and a rotor. In a stator iron core of the stator, tips of the teeth defining openings of the slots through which the armature windings of different phases pass include a pair of chamfers. A rotor iron core of the rotor includes a plurality of grooves the outer peripheral surface of which is concave along a central axis line. Each of the grooves forms a wave shape, and includes a first groove portion disposed in a leading side of the rotation direction and a second groove portion disposed in a trailing side of the rotation direction. The first groove portion and the second groove portion are asymmetric with respect to d-axis.
-
232.发明申请公开(公告)号：US20190214896A1
公开(公告)日：2019-07-11
申请号：US16334903
申请日：2017-10-25
Applicant: Danfoss Editron Oy
Inventor： Kimmo Rauma
CPC classification number: H02K41/02 , H02K3/04 , H02K11/33 , H02K41/03 , H02K2201/03
Abstract: A linear electric machine comprises a primary part (101) and a secondary part (102) linearly movable with respect to each other. The primary part comprises primary sections (103, 104) each having an airgap surface. The secondary part comprises secondary sections (105, 106) each having an airgap surface facing towards the air-gap surface of the respective primary section. Each primary section comprises force-generating windings (U1, V1, W1, U2, V2, W2) for generating a magnetic thrust force and a transversal magnetic force pulling the primary section towards the respective secondary section. The resultant of the transversal magnetic forces is controllable to levitate the primary part. The primary part further comprises one or more tilt-control windings (T1, T2) for controlling tilting of the primary part with respect to the secondary part.
-
公开(公告)号：US20190214052A1
公开(公告)日：2019-07-11
申请号：US16192060
申请日：2018-11-15
Applicant: Nidec Corporation
Inventor： Kazuhiro SATO , Seiji MARUOKA , Katsuya TAKAHASHI
CPC classification number: G11B19/2045 , H02K1/2786 , H02K1/30 , H02K15/03 , H02K2201/03
Abstract: A yoke includes a first cylindrical unit held by a radially outside surface of a rotor base, a yoke annular unit extending radially outwardly from an axially lower end of the first cylindrical unit, and a second cylindrical unit extending axially downward from a radially outer end of the yoke annular unit, and a magnet fixed to a radially inside surface of the second cylindrical unit.
-
公开(公告)号：US20190211746A1
公开(公告)日：2019-07-11
申请号：US16353679
申请日：2019-03-14
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Adam Larson , Frank C. Formas
CPC classification number: F02B63/042 , H02K1/182 , H02K7/1815 , H02K9/005 , H02K9/19 , H02K9/22 , H02K19/28 , H02K19/38 , H02K2201/03 , H02P9/302
Abstract: An alternator includes an exciter field device generating an exciter magnetic field in a first air gap, an exciter armature device configured to rotate with respect to the exciter magnetic field and impart a first voltage in a first set of coils at the first air gap, a main stator device including a second set of coils, and a rotor field device configured to be energized by the first current in the first set of coils and generate a main magnetic field that imparts a second voltage on the main stator device at a second air gap. The main stator device and the exciter field device lie in on a common plane normal to an axis of rotation, and the exciter armature device is inwardly spaced from the exciter field device, main stator device, and the rotor field device.
-
公开(公告)号：US10075035B2
公开(公告)日：2018-09-11
申请号：US15450098
申请日：2017-03-06
Applicant: Bryan Prucher
Inventor： Bryan Prucher
CPC classification number: H02K1/278 , H02K1/2786 , H02K3/522 , H02K7/088 , H02K21/16 , H02K21/225 , H02K41/031 , H02K2201/03 , H02K2201/15 , H02K2203/06 , H02K2203/09 , H02K2213/09 , Y02E10/72 , Y02E10/725
Abstract: The present invention provides a module dual radial gap brushless, permanent magnet AC or DC (BLPMAC/BLPMDC) rotary electrical motor/generator suitable for direct drive wind or other fluid medium driven turbines. The motor/generator includes a circular rotor ring of individual rotor segments and a circular stator ring of individual stator segments. Each rotor segment includes a plurality of magnet modules disposed therein and arranged in alternating magnetic plurality. The stator includes a plurality of stator induction modules nested within the rotating rotor. Each stator induction module includes a coil electrically connected to a phase bus bar and a common bus bar. In a first embodiment of the stator induction modules, the motor/generator has a pre-established, fixed gap between the magnets and the coils. In a second embodiment of the stator induction modules, the generator has a gap controlled by a self-calibrating mechanism that compensates for variations in dimensional tolerance and concentricity between the rotor and the stator.
-
Patent Agency Ranking
公开(公告)号：US20180198355A1
公开(公告)日：2018-07-12
申请号：US15864709
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
Abstract: A system for an axial field rotary energy device can include modules that each are an axial field rotary energy device. The modules can be connected together for a desired power input or output. Each module can include a housing having an axis. The housing can be mechanically coupled to at least one other module. In addition, the housing can be electrically coupled to one other module. Rotors can be rotatably mounted to the housing. Each rotor can include magnets. The housing also can have stators. Each stator can include a printed circuit board (PCB) having PCB layers comprising coils.
-
公开(公告)号：US20180198335A1
公开(公告)日：2018-07-12
申请号：US15742075
申请日：2016-07-20
Inventor： Koji INOUE , Takashi HIEKATA , Hiroaki KAWAI , Shintaro SASAI , Tetsuya OGAWA , Toshiro YAMASHITA , Shingo KASAI , Shumpei HAYASHI
CPC classification number: H02K1/30 , H02K1/2793 , H02K16/02 , H02K2201/03
Abstract: An axial gap type dynamo-electric machine (1) comprises: a stator (2) provided with a magnetic core (21) and an exciting coil (22); a rotor (3) provided with a plurality of permanent magnets (4) circumferentially arranged around a rotation center axis (AX), the rotor (3) being also provided with a disk-shaped base material (31) for supporting the permanent magnets, the rotor (3) being disposed at an axial distance from the stator (2); and affixation members (5) for affixing the permanent magnets (4) to the base material (31). The permanent magnets (4) are provided with front surfaces facing the stator (2), rear surfaces facing the base material, and engagement-receiving sections (412, 422, 432) formed at peripheral edges of the permanent magnets (4). The affixation members (5) include: engagement sections (512) engaging the engagement-receiving sections; and affixation sections (511) forming mechanical affixation structures relative to the base material.
-
公开(公告)号：US10020696B2
公开(公告)日：2018-07-10
申请号：US15616829
申请日：2017-06-07
Applicant: COAVIS
Inventor： Gyu Sang Yu , Hyun Tae Lee , Wan Sung Pae
CPC classification number: H02K1/17 , F02M59/44 , H02K23/04 , H02K29/03 , H02K2201/03 , H02K2213/03
Abstract: Provided is a DC motor for a fuel pump for a vehicle. The DC motor for a fuel pump for a vehicle includes: a housing whose inside is hollow; a stator coupled to the inside of the housing and having a first permanent magnet whose N pole is disposed inwardly in a radial direction and a second permanent magnet whose S pole is disposed inwardly in a radial direction, the first permanent magnet and the second permanent magnet being spaced apart from each other to face each other; and a rotor disposed on an inside of the stator while being spaced apart from the stator, in which a first gap g1 between the first permanent magnet and the rotor is different from a second gap g2 between the second permanent magnet and the rotor, whereby a torque ripple that is a fluctuation width of a cogging torque is reduced.
-
公开(公告)号：US09997969B2
公开(公告)日：2018-06-12
申请号：US14879284
申请日：2015-10-09
Applicant: AISIN SEIKI KABUSHIKI KAISHA
Inventor： Takanori Tsuzuki , Daisuke Miyata
CPC classification number: H02K1/276 , H02K29/03 , H02K2201/03 , H02K2213/03
Abstract: An embedded magnet motor includes a stator core, a plurality of permanent magnets each having a rectangular cross section, and a rotor core. The stator core and the rotor core define a first air gap being positioned at an intermediate portion of the rotor core, a second air gap being positioned at a first portion corresponding to a first axis of the rotor core, and a third air gap being positioned at a second portion corresponding to a second axis of the rotor core. Because a diameter of the intermediate portion being positioned between the first portion and the second portion of the rotor core is set smaller than a diameter of the first portion and than a diameter of the second portion, the first air gap is set greater than the second air gap and than the third air gap.
-
公开(公告)号：US20180159383A1
公开(公告)日：2018-06-07
申请号：US15577321
申请日：2016-05-09
Applicant: Shuichi NOWATARI
Inventor： Shuichi NOWATARI
IPC: H02K1/06
CPC classification number: H02K1/06 , H02K7/08 , H02K7/088 , H02K21/22 , H02K21/24 , H02K2201/03 , H02K2205/03
Abstract: The present invention pertains to a motor 1 or a power generator provided with: a stator 2; a rotor 3 that rotates about a rotation shaft 313 so as to be apart from the stator 2 by a space K; and a buffering member 5 located in the space K.
-
-
-
-
-
-
-
-
-
Search Results
564
records
(took 0.075 seconds)
