Patent · US Active

Magnetic sheet stack, method for manufacturing a magnetic sheet stack and electric machine

US12266464B2 · kind B2 · utility

0Cited by

0References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jörg Buschbeck · Nuremberg, DE
Gotthard Rieger · Munich, DE
Carsten Schuh · Baldham, DE
Thomas Soller · Deggendorf, DE
Rolf Vollmer · Gersfeld, DE

Key dates

Filing date	Apr 16, 2020
Grant date	Apr 1, 2025
Priority date	—
Expiry date	Mar 28, 2042

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 a magnetic sheet stack for an electric machine comprising: a plurality of magnetic sheets electrically insulated from one another by being spaced apart from one another predominantly with a non-vanishing clearance; a respective set of ceramic spacers distributed between each of the plurality of magnetic sheets from an adjacent sheet in the stack; and a respective gas layer filling a gap between a predominant part of a planar extent of each of the plurality of magnetic sheets allowing a cooling fluid to be circulated between the adjacent sheets.

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