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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10110087 B1

PDFFull Text
Expired
Date of Patent:
Oct. 23, 2018

Filed:

Mar. 24, 2015

Electric machine

Applicant:

Abb Schweiz Ag, Baden, CH;

Inventors:

Joonas Helander, Helsinki, FI;

Moritz Grün, Espoo, FI;

Ari Vartiainen, Vantaa, FI;

Risto Pulkkinen, Helsinski, FI;

Assignee:

ABB Schweiz AG, Baden, CH;

Attorneys:

J. Bruce Schelkopf

Taft Stettinius & Hollister LLP

Primary Examiner:

Thanh Lam

Int. Cl.
CPC ...
H02K 5/24 (2006.01); H02K 5/04 (2006.01); H02K 1/18 (2006.01); H02K 5/26 (2006.01);
U.S. Cl.
CPC ...
H02K 5/24 (2013.01); H02K 1/185 (2013.01); H02K 5/04 (2013.01); H02K 5/26 (2013.01);
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.

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Helander, Joonas. (2018). Electric machine (U.S. Patent No. 10110087). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10110087

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