公开(公告)号：US11251681B2

公开(公告)日：2022-02-15

申请号：US15394522

申请日：2016-12-29

Applicant: LCDRIVES CORP.

Inventor： Russel H. Marvin ,  Dylan Broomfield ,  David Leach

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

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：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.