Patent · US Active

Rotor bar for squirrel-cage rotor, and squirrel-cage rotor provided with rotor bar

US10700582B2 · kind B2 · utility

0Cited by

3References

22Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Klaus Büttner · Hollstadt, DE
Michael Müller · Hennef (Sieg), DE
Norbert Wöhner · Heustreu, DE

Key dates

Filing date	Sep 29, 2011
Grant date	Jun 30, 2020
Priority date	—
Expiry date	Oct 18, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH02K17/20
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A squirrel-cage rotor of an asynchronous machine has a rotor bar (4) in a rotor stack (1), wherein the bar (4) can be tipped at a tipping point (11, 12, 13) when the bar (4) has not yet been cast. The rotor bar (4) can in this case have a contour on a radial outer face, wherein the bar (4) can also have a channel (27), the opening (29) in said channel being wider than the shoulders (32, 33) of the limbs (30, 31) which form the channel (27).

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