Patent · US Active

Electric motor

US12224623B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Stefan Lampenscherf · Poing, DE
Gotthard Rieger · Munich, DE
Michael Krispin · Vaterstetten, DE

Key dates

Filing date	Apr 23, 2021
Grant date	Feb 11, 2025
Priority date	—
Expiry date	Dec 26, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2213/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Various embodiments of the teachings herein include an electric motor. In some embodiments, the motor includes: a stator; and a moving component comprising an iron-based soft-magnetic structural material including crystallites of a ferromagnetic iron-based alloy separated by grain boundaries, wherein there is interlayer-free contact between the crystallites at grain boundaries. The structural material comprises ceramic fibers. A content of the ceramic fibers is between 0.2% and 10% by volume. An aspect ratio of the ceramic fibers is less than 0.1.

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