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.:
Date of Patent:
Dec. 17, 2024
Filed:
Feb. 28, 2019
Lappeenrannan-lahden Teknillinen Yliopisto Lut, Lappeenranta, FI;
Ilya Petrov, Lappeenranta, FI;
Juha Pyrhönen, Lappeenranta, FI;
LAPPEENRANNAN-LAHDEN TEKNILLINEN YLIOPISTO LUT, Lappeenranta, FI;
Abstract
A stator of an electric machine comprises a stator core structure () and a stator winding comprising a plurality of stator coils (-) mechanically supported by the stator core structure. Each stator coil comprises electrical conductors and a cooling tube () for conducting cooling fluid in the longitudinal direction of the electrical conductors. The stator comprises cooling elements (-) having heat-conductive mechanical contacts with the stator core structure. The cooling elements comprise channels for conducting the cooling fluid, and the cooling tubes of the stator coils are connected to each other via the cooling elements. The cooling elements transfer heat caused by iron losses from the stator core structure to the cooling fluid. Furthermore, the cooling elements act as manifolds for conducting the cooling fluid between the cooling tubes of the stator coils.