公开(公告)号：US20210172479A1

公开(公告)日：2021-06-10

申请号：US16709154

申请日：2019-12-10

Applicant: LCDRIVES CORP.

Inventor： DYLAN BROOMFIELD ,  RUSSEL HUGH MARVIN

IPC: F16C35/06 ,  F16C19/06

Abstract: A wedge for securing a bearing and a bearing sleeve to an end bell of a rotating electric machine includes an annular base extending about a centerline and having an inner surface defining an opening through the base for receiving the bearing and the bearing sleeve. The base includes opposing first and second ends spaced circumferentially from one another by a gap for allowing relative movement therebetween during securing of the bearing and the bearing sleeve to the end bell.

公开(公告)号：US20180048255A1

公开(公告)日：2018-02-15

申请号：US15790561

申请日：2017-10-23

Applicant: LCDRIVES CORP.

Inventor： Russel Hugh Marvin ,  David H. Leach

IPC: H02P27/06 ,  H05K1/02 ,  H02M7/00 ,  H05K1/18 ,  H03K17/16 ,  H02P29/02

CPC classification number: H02P27/06 ,  H02M7/003 ,  H02M2007/4835 ,  H02P27/14 ,  H02P29/02 ,  H03K17/161 ,  H05K1/0204 ,  H05K1/181 ,  H05K2201/10015 ,  H05K2201/10166 ,  H05K2201/10522 ,  H05K2201/10545

Abstract: One example includes a half-bridge switching circuit system. The system includes a first plurality of switches arranged between a first rail voltage and an output on which an output voltage is provided and a second plurality of switches arranged between a second rail voltage and the output, the first and second pluralities of switches being controlled via a plurality of switching signals. The system also includes a plurality of flying capacitors arranged to interconnect the first and second pluralities of switches, and further includes a plurality of snubber circuits that are each arranged in parallel with a respective one of the plurality of flying capacitors, the first plurality of switches, and the second plurality of switches.

公开(公告)号：US11245309B2

公开(公告)日：2022-02-08

申请号：US16864529

申请日：2020-05-01

Applicant: LCDRIVES CORP.

Inventor： Russel Hugh Marvin

IPC: H02K9/19 ,  H02K3/24

Abstract: A method for building a stator assembly for a rotary electric machine includes providing a plurality of axially extending teeth spaced circumferentially from one another to define slots therebetween. Cooling structure is provided in each slot. Stator windings are wound around the teeth and the cooling structures such that each winding is at least partially disposed in each slot. The windings are electrically connected to form a plurality of phases. The teeth, the cooling structures, and the windings cooperate to form a subassembly. An outer stator core is axially slid over the subassembly to connect the teeth to the outer stator core.

公开(公告)号：US20210281129A1

公开(公告)日：2021-09-09

申请号：US16810906

申请日：2020-03-06

Applicant: LCDRIVES CORP.

Inventor： DYLAN BROOMFIELD ,  RUSSEL HUGH MARVIN ,  MATTHEW HONICKMAN

IPC: H02K1/18 ,  H02K5/06 ,  H02K5/15

Abstract: A housing for a rotary electric machine having stacked laminations forming a stator core includes a first portion forming a slip fit with a first series of the stacked laminations. A second portion forms an interference fit with a second series of the stacked laminations.

公开(公告)号：US20210226504A1

公开(公告)日：2021-07-22

申请号：US16745465

申请日：2020-01-17

Applicant: LCDRIVES CORP.

Inventor： MATTHEW HONICKMAN ,  RUSSEL HUGH MARVIN

IPC: H02K3/52 ,  H02K15/00 ,  H02K15/02 ,  H02K3/48 ,  F16B21/12

Abstract: A stator for a rotary electric machine includes a core extending along an axis and having a series of axially extending passages arranged circumferentially about the axis. A plurality of teeth are provided with each tooth including an axially extending inner surface defining a passage and a projection extending therein. Retention devices secure each tooth to the stator. Each retention device includes a resilient member having a base extending within one of the passages of the stator and an arm extending from the base and within the passage of one of the teeth. The arm including an enlarged portion for engaging the projection to pull the tooth into engagement with the core.

公开(公告)号：US20210184516A1

公开(公告)日：2021-06-17

申请号：US16710171

申请日：2019-12-11

Applicant: LCDRIVES CORP.

Inventor： RUSSEL HUGH MARVIN ,  Dylan Broomfield

IPC: H02K1/16 ,  H02K21/14 ,  H02K1/18 ,  H02K3/14

Abstract: A rotary electric machine includes a stator extending along an axis and having teeth arranged about the axis. The teeth are circumferentially spaced apart by slots. Winding coils extend around the teeth and through the slots. The winding coils are electrically connected to one another to form phases. At least one of the winding coils has a first portion extending through first and second slots of the slots and including first end turns extending between the first and second slots over an axial end surface of the teeth. A second portion extends through the first and second slots and includes second end turns extending between the first and second slots over the axial end surface of the teeth. The first and second portions are connected in series at a third end turn spaced closer to the axial end surface than either the first or second end turns.

公开(公告)号：US20200259399A1

公开(公告)日：2020-08-13

申请号：US16864529

申请日：2020-05-01

Applicant: LCDRIVES CORP.

Inventor： Russel Hugh Marvin

IPC: H02K9/19 ,  H02K3/24

Abstract: A method for building a stator assembly for a rotary electric machine includes providing a plurality of axially extending teeth spaced circumferentially from one another to define slots therebetween. Cooling structure is provided in each slot. Stator windings are wound around the teeth and the cooling structures such that each winding is at least partially disposed in each slot. The windings are electrically connected to form a plurality of phases. The teeth, the cooling structures, and the windings cooperate to form a subassembly. An outer stator core is axially slid over the subassembly to connect the teeth to the outer stator core.

公开(公告)号：US20170194838A1

公开(公告)日：2017-07-06

申请号：US15394522

申请日：2016-12-29

Applicant: LCDRIVES CORP.

Inventor： RUSSEL H. MARVIN ,  DYLAN BROOMFIELD ,  DAVID LEACH

IPC: H02K9/00 ,  H02K1/16 ,  H02K1/04 ,  H02K15/02

CPC classification number: H02K9/005 ,  H02K1/04 ,  H02K1/16 ,  H02K3/24 ,  H02K9/22 ,  H02K15/00 ,  H02K15/026

Abstract: A method for securing metallic first and second parts together includes positioning filler metal along an interface between the first and second parts. The first and second parts are inserted into a fixture such that at least one of the first and second parts engages the fixture. The fixture is heated with at least one electrical heating element to heat the filler metal by thermal conduction above a melting point of the filler metal and form metallurgical bonds between the filler metal and the first and second parts. The melted filler metal is cooled to join the first and second parts together.

公开(公告)号：US09379585B2

公开(公告)日：2016-06-28

申请号：US13670429

申请日：2012-11-06

Applicant: LCDrives Corp.

Inventor： Russel H. Marvin ,  Thomas Johnson

IPC: H02K3/12 ,  H02K3/18 ,  H02K3/24 ,  H02K15/04

CPC classification number: H02K3/18 ,  H02K3/24 ,  H02K15/045 ,  Y10T29/49009

Abstract: A permanent magnet motor, generator or the like that is constructed with a concentrated winding and edge form wound stator coils. This achieves less eddy current losses in the windings as well as a much higher power density than conventional techniques.

Abstract translation: 永久磁铁电动机，发电机等构成有集中绕组和边缘形式缠绕的定子线圈。 这在绕组中实现较少的涡流损耗以及比常规技术高得多的功率密度。

公开(公告)号：US20140300220A1

公开(公告)日：2014-10-09

申请号：US13855801

申请日：2013-04-03

Applicant: LCDRIVES CORP.

Inventor： Russel Hugh Marvin

IPC: H02K9/19 ,  H02K15/02

Abstract: A stator for a motor, generator or the like that is liquid cooled using glycol or similar fluid with the cooling applied directly in the winding slots of the stator in either concentrated wound or distributed wound configurations.

Abstract translation: 一种用于电动机，发电机等的定子，其使用二醇或类似流体进行液体冷却，其中冷却直接施加在定子的卷绕槽中，即集中卷绕或分布卷绕构型。