公开(公告)号：US12255507B2

公开(公告)日：2025-03-18

申请号：US18057871

申请日：2022-11-22

Applicant: ABB Schweiz AG

Inventor： Ari Vartiainen ,  Teemu Laukkanen

IPC: H02K15/16 ,  H02K1/2713 ,  H02K7/04 ,  H02K15/165

Abstract: An electric machine assembly including a body part; a stator stationarily supported to the body part; a rotor adapted to rotate relative to the stator, and adapted to receive a shaft inside thereof; and a locking system for providing a locking state for the electric machine assembly in which the rotor is locked relative to the stator. The locking system includes at least one locking member adapted to be in a separating position between the rotor and the stator; and a plurality of radial bolt holes provided in the rotor, extending in a radial direction, and adapted to receive centring bolts such that distal ends of the centring bolts press the at least one locking member in the separating position radially outwards relative to the rotor.

公开(公告)号：US20230163668A1

公开(公告)日：2023-05-25

申请号：US18057871

申请日：2022-11-22

Applicant: ABB Schweiz AG

Inventor： Ari Vartiainen ,  Teemu Laukkanen

IPC: H02K15/16 ,  H02K1/2713 ,  H02K7/04

CPC classification number: H02K15/165 ,  H02K1/2713 ,  H02K7/04 ,  H02K2213/12

Abstract: An electric machine assembly including a body part; a stator stationarily supported to the body part; a rotor adapted to rotate relative to the stator, and adapted to receive a shaft inside thereof; and a locking system for providing a locking state for the electric machine assembly in which the rotor is locked relative to the stator. The locking system includes at least one locking member adapted to be in a separating position between the rotor and the stator; and a plurality of radial bolt holes provided in the rotor, extending in a radial direction, and adapted to receive centring bolts such that distal ends of the centring bolts press the at least one locking member in the separating position radially outwards relative to the rotor.

公开(公告)号：US10389190B2

公开(公告)日：2019-08-20

申请号：US15128839

申请日：2015-03-24

Applicant: ABB Schweiz AG

Inventor： Joonas Helander ,  Moritz Grün ,  Ari Vartiainen

IPC: H02K1/18 ,  H02K5/02 ,  H02K5/04 ,  H02K5/26

Abstract: The electric machine comprises a rotor, a stator surrounding the rotor and a support structure. The stator has a longitudinal center axis and is supported on the support structure with support elements. The stator comprises a cylindrical stator core having a laminated structure and slots for a stator winding and a stator frame surrounding the stator core. The stator frame comprises two opposite end constructions and at least one frame plate located between the end constructions. A support element is located between each end construction and the adjacent frame plate and between adjacent frame plates. The support element is made of cast iron and attached to the end constructions, the frame plate and the support structure with fastening means based on a compression joint, whereby the stator frame becomes attached to the support structure via the support elements.

公开(公告)号：US20240072592A1

公开(公告)日：2024-02-29

申请号：US18260347

申请日：2021-07-11

Applicant: ABB Schweiz AG

Inventor： Jori Keitamo ,  Aron Szucs ,  Ari Vartiainen ,  Juhani Mantere ,  Klas Sandholm

IPC: H02K3/28 ,  H02K21/22

CPC classification number: H02K3/28 ,  H02K21/22 ,  H02K29/03

Abstract: An annular stator provided with axial stator slots and stator teeth formed between adjacent stator slots. Each stator slot receives a conductor of a stator winding. The stator is formed of stator sectors. Each stator sector includes two outermost stator teeth and intermediate stator teeth between the two outermost stator teeth. A width of the two outermost stator teeth is equal. Adjacent stator slots within each stator sector are distanced by a first slot pitch and adjacent stator slots belonging to different stator sectors are distanced by a second slot pitch. The first slot pitch is smaller than the second slot pitch.

公开(公告)号：US10110087B2

公开(公告)日：2018-10-23

申请号：US15128979

申请日：2015-03-24

Applicant: ABB Schweiz AG

Inventor： Joonas Helander ,  Moritz Grün ,  Ari Vartiainen ,  Risto Pulkkinen

IPC: H02K5/24 ,  H02K5/04 ,  H02K1/18 ,  H02K5/26

Abstract: Electric machine comprises a rotor and a stator surrounding the rotor. The stator comprises a cylindrical stator core having a laminated structure and slots for a stator winding and a stator frame surrounding the stator core. The stator core is attached with fastening brackets by means of fastening means based on a compression joint to the stator frame. The stator frame comprises two opposite end constructions and a frame plate located between the end constructions. Back beams extending in the axial direction of the stator are attached to an outer surface of the stator core. Each fastening bracket comprises two perpendicular branches, a first branch attached to the stator frame plate and a second branch attached to the back beam by fastening means based on a compression joint. The fastening means passes through openings in each branch. The openings are allow a small movement of the fastening means in the openings so that the stator core can be centralized in a radial direction and in an axial direction in relation to the stator frame before the fastening means are tightened in order to lock the stator core to the stator frame.