Patent · US Expired

Armature for a direct current motor

US7388313B2 · kind B2 · utility

1Cited by

7References

18Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Gerald Roos · Achern, DE
Werner Grosch · Bad Krozingen, DE
Harold Bitzer · Laufenburg (Baden), DE
Guenter Kastinger · Gaggenau, DE
Wilhelm Braun · Laufenburg (Baden), DE
Gabriele Pfeiffer · Darmstadt, DE
Jochen Oser · Baden-Baden, DE
Markus Rauschning · Laufenburg (Baden), DE

Key dates

Filing date	Jan 20, 2005
Grant date	Jun 17, 2008
Priority date	—
Expiry date	Feb 8, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH02K23/04
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An armature for a direct current motor, in particular for a permanent-magnet-excited DC motor, has an armature body, with armature teeth joined in one piece together via a short-circuit ring and offset by equal circumferential angles, each with a tooth neck for receiving an armature winding and with a tooth head that protrudes past the tooth neck in the circumferential direction. For an axial lengthening of the armature body that is simple and economical to produce, one preferably stacked flux-conducting element each, whose profile corresponds to the tooth head profile, is placed on the axially pointing end faces of the tooth heads.

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