公开(公告)号：EP3670136A1

公开(公告)日：2020-06-24

申请号：EP19218203.8

申请日：2019-12-19

Applicant: ABB Schweiz AG

Inventor： Zhong, Sheng ,  Bednarowski, Dariusz ,  Tschida, Colin E. ,  Tremelling, Darren ,  Malinowski, Lukasz

IPC: B29C45/14 ,  H02K15/12 ,  H02K3/50 ,  H02K5/02 ,  H02K5/08 ,  H02K15/02 ,  B29L31/34

Abstract: A method for manufacturing a polymeric electrical machine includes manufacturing a stator (18, 30) including a laminated stator core (30) and a plurality of windings (20) including winding overhangs (48);
applying a surface treatment to the stator (18, 30) core constructed to reduce defects at an interface between a polymeric material and the stator (18, 30) core and enhance adherence between the polymeric material and the stator (18, 30) core;
mounting the stator (18, 30) onto a mandrel (108);
inserting the stator (18, 30) into an electrical machine housing mold (100);
molding an electrical machine housing (22) including a stator band (34) with an integral nondrive end endplate (36, 38), including overmolding the stator (18, 30) and winding overhangs (48) within the stator band (34);
molding a drive end endplate (38), including forming polymeric ribs (72) in the drive end endplate (38) and overmolding a metallic structure (61) into the endplate (36, 38), the metallic structure (61) enhancing mechanical stiffness of the endplate (36, 38);
installing a rotor (14) assembly (124) into the electrical machine housing (22);
and installing the endplate (36, 38) onto the electrical machine housing (22).

公开(公告)号：EP3789137A1

公开(公告)日：2021-03-10

申请号：EP19195644.0

申请日：2019-09-05

Applicant: ABB Schweiz AG

Inventor： Scherf, Lavinia Maria ,  Jacimovic, Jacim ,  Kessler, Reto ,  Tremelling, Darren ,  Shrestha, Ghanshyam

IPC: B22F5/00 ,  B22F7/06 ,  B33Y80/00 ,  B22F3/02 ,  B22F3/10 ,  B22F9/02 ,  B22F3/105 ,  B22F9/04 ,  H01F1/055 ,  H01F1/057 ,  H01F1/09 ,  H01F41/02 ,  C22C1/05

Abstract: The present invention relates to high-resistivity permanent magnets, their preparation and their application in electrical machines. A permanent magnet according to the present invention comprises a permanent magnet comprising a magnetic material and a shaped inorganic insulating element, wherein a shape and a size of the shaped inorganic insulating element have been substantially unchanged by the sintering, wherein the shaped inorganic insulating element has a width and a length which are both at least 10 times larger than an average grain diameter of the magnetic material after sintering, and wherein an arithmetic average waviness Wa of an interface between the magnetic material and the shaped inorganic insulating element is less than 10% of a local wall thickness of the shaped inorganic insulating element after sintering.

公开(公告)号：EP3708330A1

公开(公告)日：2020-09-16

申请号：EP19217508.1

申请日：2019-12-18

Applicant: ABB Schweiz AG

Inventor： Zhong, Sheng ,  Bednarowski, Dariusz ,  Tschida, Colin E ,  Tremelling, Darren ,  Malinowski, Lukasz

IPC: B29C45/14 ,  H02K3/50 ,  H02K5/02 ,  H02K5/08 ,  H02K15/02 ,  H02K15/12 ,  B29L31/34

Abstract: An electrical machine comprises a polymeric housing (22) having a stator band (34), the polymeric housing (22) formed by a polymeric material and constructed to house components of the electrical machine, structurally support the electrical machine and react torque loads generated by the electrical machine;
a stator (18, 30) overmolded into and partially encapsulated by the stator band (34), the stator (18, 30) including a laminated stator core (30) and a plurality of stator windings (20);
a rotor (14) in magnetic communication with the stator (18, 30);
a first endplate (36) integral with the polymeric housing (22);
and a second endplate (38), the second endplate (38) being a polymeric endplate (36, 38), the second endplate (38) including a plurality of ribs (72) and a metallic structure (61), wherein the electrical machine is constructed as an industrial electrical machine.

公开(公告)号：EP3579384A1

公开(公告)日：2019-12-11

申请号：EP19178176.4

申请日：2019-06-04

Applicant: ABB Schweiz AG

Inventor： Tschida, Colin E. ,  Tremelling, Darren

IPC: H02K1/28 ,  H02K1/24 ,  H02K1/27

Abstract: A rotor is provided for an electric motor. The rotor shaft is located within a central opening of the rotor core. The central opening is sized larger than the rotor shaft such that a circumferential gap exists between the rotor core and the rotor shaft while the shaft is located by protrusions in the central opening of the rotor core. The circumferential gap is filled with a resin.