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:
Jul. 19, 2022
Filed:
Apr. 02, 2020
Danfoss Editron Oy, Lappeenranta, FI;
Mikko Piispanen, Lappeenranta, FI;
Mika Bjorkholm, Lappeenranta, FI;
Juha Toikka, Lappeenranta, FI;
Tapani Siivo, Lappeenranta, FI;
Danfoss Editron OY, Lappeenranta, FI;
Abstract
An electric machine element comprises electric terminals () for connecting to an external AC system and a multiphase winding () comprising at least two multiphase winding portions (). Each multiphase winding portion comprises phase-windings (--) each having a first end () and a second end (). The multiphase winding portions are successively connected to constitute chains (-) of the phase-windings so that the first ends of the phase-windings of a first one () of the multiphase winding portions are connected to the electric terminals. Each multiphase winding portion comprises switches () for connecting the second ends of the phase-windings of the multiphase winding portion to each other. Thus, the number of turns of the multiphase winding is changeable by selecting which one of the multiphase winding portions has a star-point at the second ends of its phase-windings.