Patent · US Active

Permanent magnet rotor for an electric machine

US10211691B2 · kind B2 · utility

0Cited by

1References

19Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Erich Bott · Hollstadt, DE
Reiner Seufert · Freiensteinau, DE
Rolf Vollmer · Gersfeld, DE

Key dates

Filing date	Jul 19, 2018
Grant date	Feb 19, 2019
Priority date	—
Expiry date	Jul 19, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH02K15/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A permanent magnet having end surfaces and an envelope curve shaped as a biconvex lens having first and second convex portions, magnetization running in an arcuate manner along the first convex portion between a north pole and a south poles. The permanent magnet runs along the second convex portion in an arcuate manner, and at least one of the magnet's end surfaces within the envelope curve has a connection surface adapted for connecting with a connection device by fusing or by positive engagement. The rotor is preferably pressed onto the shaft of the rotor after the connection device is formed around a connection surface of the permanent magnets by injection molding.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.