公开(公告)号：US20190214179A1

公开(公告)日：2019-07-11

申请号：US16325616

申请日：2017-08-22

Applicant: LAPPEENRANNAN TEKNILLINEN YLIOPISTO

Inventor： Olli PYRHÖNEN ,  Rafal Piotr JASTRZEBSKI ,  Antti SALMINEN ,  Jussi SOPANEN

IPC: H01F27/245 ,  H02K1/16 ,  H02K1/26 ,  H02K15/02

CPC classification number: H01F27/245 ,  B22F3/008 ,  B33Y80/00 ,  F16C32/0476 ,  F16C32/048 ,  F16C2202/42 ,  F16C2220/24 ,  H01F3/14 ,  H01F41/02 ,  H02K1/12 ,  H02K1/16 ,  H02K1/22 ,  H02K1/26 ,  H02K15/00 ,  H02K15/02 ,  H02K2201/03

Abstract: A core element for a magnetic component includes a plurality of ferromagnetic sections for conducting a magnetic flux. Adjacent ones of the ferromagnetic sections are connected to each other with ferromagnetic isthmuses keeping the adjacent ones of the ferromagnetic sections a distance apart from each other, and/or the gaps between the ferromagnetic sections are filled with electrically insulating solid material and adjacent ones of the gaps are connected to each other via openings through the ferromagnetic sections and filled with electrically insulating solid material. The ferromagnetic sections can constitute for example a stack of ferromagnetic sheets or a bundle of ferromagnetic filaments. The core element can be manufactured by three-dimensional printing and thus it is possible to make core elements which are not possible or at least not cost effective to be made by shaping ferromagnetic sheets which are originally planar.

公开(公告)号：US20190115817A1

公开(公告)日：2019-04-18

申请号：US16155907

申请日：2018-10-10

Applicant: ETEL S.A.

Inventor： Sean David Monaghan ,  Vivien Baverel

IPC: H02K41/03 ,  H02K3/47

CPC classification number: H02K41/033 ,  H02K1/17 ,  H02K1/34 ,  H02K3/47 ,  H02K29/03 ,  H02K41/031 ,  H02K2201/03 ,  H02K2213/12

Abstract: A secondary part, which defines a magnetic path for a primary part of a linear motor, includes a spacer element having a plurality of mounting points that, in an application, are configured to fasten the secondary part. Two yoke plates that form lateral sides are configured to be fastened to the spacer element such that the two yoke plates extend in mutual opposition, orthogonally to the magnetic path. The two yoke plates are configured to accommodate a plurality of permanent magnets on respective inner sides thereof. The two yoke plates have, on respective outer sides thereof, a reinforcing structure that is formed by a periodic variation of plate thickness in the direction of the magnetic path. Local minima of the reinforcing structure overlapping with the mounting points along the direction of the magnetic path.

公开(公告)号：US10081497B2

公开(公告)日：2018-09-25

申请号：US15525248

申请日：2015-10-26

Applicant: Robert Bosch GmbH

Inventor： Anton Paweletz ,  Joachim Frangen ,  Heike Raatz

IPC: B65G45/10 ,  H02K41/02 ,  B65G54/02

CPC classification number: B65G45/10 ,  B65G54/02 ,  H02K41/02 ,  H02K2201/03

Abstract: An electromagnet-operated conveying device includes a movable conveying element, at least one permanent magnet, and a cleaning device. The at least one permanent magnet is arranged on the conveying element for the onward movement of the conveying element. The cleaning device is configured to remove particles from a surface of the at least one permanent magnet.

公开(公告)号：US20180223848A1

公开(公告)日：2018-08-09

申请号：US15877870

申请日：2018-01-23

Applicant: Emerson Climate Technologies, Inc.

Inventor： Roy J. DOEPKER ,  Robert C. STOVER

IPC: F04C28/28 ,  H02K7/14 ,  H02K7/09 ,  H02K11/21 ,  H02K11/30

CPC classification number: F04C28/28 ,  F04C18/023 ,  F04C23/008 ,  F04C2240/40 ,  F04C2240/50 ,  F04C2270/175 ,  H02K7/09 ,  H02K7/14 ,  H02K11/20 ,  H02K11/21 ,  H02K11/30 ,  H02K21/16 ,  H02K2201/03

Abstract: A compressor may include first and second compression members, first and second bearing assemblies, a sensor, and processing circuitry. The second compression member cooperates with the first compression member to define a compression pocket. The first and second bearing assemblies rotatably support the first and second compression members, respectively. The first bearing assembly may include a bearing rotor and a bearing stator. The bearing stator may surround the bearing rotor and may include poles each having a winding. The sensor may measure a radial position of the bearing rotor relative to the bearing stator. The processing circuitry may be in communication with the sensor and may control electrical current supplied to the windings based on the radial position measured by the sensor to adjust the radial position of the bearing rotor relative to the bearing stator.

公开(公告)号：US20180198339A1

公开(公告)日：2018-07-12

申请号：US15864663

申请日：2018-01-08

Applicant: Infinitum Electric Inc.

Inventor： Bernhard L. Schuler ,  Rich Lee ,  Jorgen Rasmussen

IPC: H02K3/26 ,  H02K1/18 ,  H02K1/27 ,  H02K1/32 ,  H02K3/28 ,  H02K9/12 ,  H02K16/00

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: An axial field rotary energy device can include a housing having coupling structures configured to mechanically couple the housing to a second housing of a second module. In addition, the housing can include electrical elements configured to electrically couple the housing to the second housing. A rotor can be rotatably mounted to the housing. The rotor can include an axis and a magnet. A stator can be mounted to the housing coaxially with the rotor. The stator can include a printed circuit board (PCB) having a PCB layer comprising a coil.

公开(公告)号：US20180198327A1

公开(公告)日：2018-07-12

申请号：US15864544

申请日：2018-01-08

Applicant: Infinitum Electric Inc.

Inventor： Bernhard L. Schuler ,  Rich Lee ,  Jorgen Rasmussen

IPC: H02K1/18 ,  H02K15/03 ,  H02K35/02 ,  H02K1/27 ,  H02K3/12 ,  H02K3/26 ,  H02K3/28 ,  H02K3/47 ,  H02K21/24

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: An axial field rotary energy device can include a rotor having an axis of rotation and a magnet; a stator coaxial with the rotor, the stator can have a printed circuit board (PCB) having a plurality of PCB layers that are spaced apart in an axial direction, each PCB layer can include a coil having only two terminals for electrical connections, each coil is continuous and uninterrupted between its only two terminals, each coil consists of a single electrical phase, and one of the two terminals of each coil is electrically coupled to another coil with a via to define a coil pair; and each coil pair is electrically coupled to another coil pair with another via.

公开(公告)号：US20180138768A1

公开(公告)日：2018-05-17

申请号：US15574224

申请日：2016-05-19

Applicant: GREENSPUR RENEWABLES LIMITED

Inventor： Hugh-Peter Granville Kelly

IPC: H02K1/30 ,  H02K1/27 ,  H02K16/00

CPC classification number: H02K1/30 ,  H02K1/2793 ,  H02K7/083 ,  H02K16/00 ,  H02K2201/03 ,  Y02E10/725

Abstract: A generator comprises as a first part a stack of disc-like annular rotors spaced one from the other and coaxially located upon and rotating with an elongate central member each rotor having an inner annular portion and an outer annular portion, the outer annular portion bearing and/or comprising a magnetic annulus, one or more spacers being coaxially mounted around the central member in between the inner annular portions of each rotor and abutting against them in such manner such as to brace them to remain orthogonal to the longitudinal axis of the assembly as well as providing the required spacing therebetween, and as a second part, a stack of annular stators interposed between the rotors and mounted over the spacers but having an inner clearance diameter greater than that of the outer diameter of the portion of spacer over which they are located.

公开(公告)号：US20180138761A1

公开(公告)日：2018-05-17

申请号：US15354323

申请日：2016-11-17

Applicant: General Electric Company

Inventor： Daniel Alan Niergarth ,  Brandon Wayne Miller ,  Paul Robert Gemin

IPC: H02K1/18 ,  H02K1/27

CPC classification number: H02K1/187 ,  H02K1/2786 ,  H02K16/00 ,  H02K21/22 ,  H02K2201/03 ,  H02K2213/09

Abstract: An electric machine is provided which includes a rotor disk extending along a radial direction and having a rotor flange attached to or formed integrally with the rotor disk and extending substantially along the axial direction. A plurality of rotor magnets are mounted on the rotor disk and positioned against the rotor flange. The electric machine includes a stator assembly including a tracking tooth in magnetic flux communication with the rotor magnets across an air gap. The stator assembly further includes an actuator operable with the tracking tooth to move the tracking tooth along the radial direction to adjust a height of the air gap.

公开(公告)号：US20180076676A1

公开(公告)日：2018-03-15

申请号：US15686601

申请日：2017-08-25

Applicant: Nanjing Chervon Industry Co., Ltd.

Inventor： Shibo Chen ,  Qian Xu

IPC: H02K1/27

CPC classification number: H02K1/276 ,  H02K1/2766 ,  H02K2201/03 ,  H02K2213/03

Abstract: A rotor lamination assembly is formed with a central hole wherein a central axis goes through the central hole. The rotor lamination assembly is further formed with an even number of mounting holes arranged between a rim of the central hole and an outer rim of the rotor lamination assembly. The outer rim of the rotor lamination assembly has a projection on a plane substantially perpendicular to the central axis. The projection includes an even number of base curve edges, an even number of protruding curve edges, and connecting curve edges. Each protruding curve edge is arranged between two adjacent base curve edges in a circumferential direction of the central axis. The protruding curve edges and the base curve edges are connected with each other through the connecting curve edges. Every two mounting holes which are arranged symmetrically constitute a mounting hole group. A supporting portion is disposed between the two mounting holes and corresponded with the base curve edge in the circumferential direction of the central axis. Edges of the two mounting holes of the mounting hole group which are farthest from each other are respectively corresponded with the two adjacent protruding curve edges in the circumferential direction of the central axis.

公开(公告)号：US20180048213A1

公开(公告)日：2018-02-15

申请号：US15549659

申请日：2016-02-08

Applicant: Indiana University Research and Technology Corporation

Inventor： Matthew J. Rubin

IPC: H02K7/12 ,  H02K9/19 ,  H02K1/32

CPC classification number: H02K7/12 ,  H02K1/06 ,  H02K1/325 ,  H02K9/19 ,  H02K21/14 ,  H02K2201/03 ,  H02K2213/09

Abstract: An electric motor is disclosed, comprising a stator and a rotor mounted relative to the stator to form a gap between a surface of the stator and a surface of the rotor, the gap having a width. One of the stator and the rotor is mounted for movement relative to the other of the stator and the rotor about a central axis, and one of the stator and the rotor is mounted for movement relative to the other of the stator and the rotor along the central axis in response to thermal expansion of at least one of the stator and the rotor to maintain the width of the gap.