Patent · US Active

Multipole permanent-magnet synchronous machine having tooth-wound coils

US7977826B2 · kind B2 · utility

13Cited by

10References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Rolf Vollmer · Gersfeld, DE
Holger Schunk · Lendershausen, DE
Erich Bott · Hollstadt, DE
Matthias Braun · Ludwigsburg, DE

Key dates

Filing date	Nov 28, 2005
Grant date	Jul 12, 2011
Priority date	—
Expiry date	Mar 8, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH02K3/28
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The permanently excited synchronous machine (1) includes a rotor (3) and a stand (2) which contains a three-branched winding system (8) which comprises tooth coils. The stand (2) has a total of three or six grooves (5) and a tooth (6, 7) is formed there between. A total of three tooth coils (9) are arranged in the grooves (5) and each coil is associated with one of the three winding phases. The number of user pole pairs (pN) is four or five. The rotor (3) has twice as many user pole pairs (pN) of permanent magnets (18) which are evenly distributed on the periphery.

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