Global Patent Index - EP 1721378 A1

EP 1721378 A1 20061115 - ARMATURE FOR A DIRECT-CURRENT MOTOR

Title (en)

ARMATURE FOR A DIRECT-CURRENT MOTOR

Title (de)

ANKER FÜR EINEN GLEICHSTROMMOTOR

Title (fr)

INDUIT POUR MOTEUR A COURANT CONTINU

Publication

EP 1721378 A1 20061115 (DE)

Application

EP 05701564 A 20050120

Priority

  • EP 2005050228 W 20050120
  • DE 102004008936 A 20040225

Abstract (en)

[origin: WO2005081380A1] The invention relates to an armature for a direct-current motor, particularly for a permanent magnet-excited direct-current motor, comprising an armature body (19) with armature teeth (20) that are offset by the same circumferential angle and are joined to one another via a return ring (21) while forming a single piece. These armature teeth each have a tooth neck (22) for accommodating an armature winding and have a tooth head (23) projecting from the tooth neck (22) in a circumferential direction. The aim of the invention is to achieve an axial lengthening of the armature body (19) that is both simple and economical with regard to manufacturing. To this end, a preferably lamellar flux conducting element (34) is placed on the faces of the tooth heads (23), said faces pointing in an axial direction, and the profile of the flux conducting element corresponding to that of the tooth head.

IPC 8 full level

H02K 1/24 (2006.01); H02K 7/04 (2006.01); H02K 23/04 (2006.01)

CPC (source: EP KR US)

H02K 1/24 (2013.01 - EP KR US); H02K 3/345 (2013.01 - KR); H02K 23/04 (2013.01 - EP KR US)

Citation (search report)

See references of WO 2005081380A1

Designated contracting state (EPC)

DE ES FR HU PL

DOCDB simple family (publication)

WO 2005081380 A1 20050901; BR PI0507997 A 20070731; CN 100530896 C 20090819; CN 1922775 A 20070228; DE 102004008936 A1 20050915; EP 1721378 A1 20061115; JP 2007523588 A 20070816; KR 20060123596 A 20061201; US 2007176510 A1 20070802; US 7388313 B2 20080617

DOCDB simple family (application)

EP 2005050228 W 20050120; BR PI0507997 A 20050120; CN 200580005980 A 20050120; DE 102004008936 A 20040225; EP 05701564 A 20050120; JP 2007500199 A 20050120; KR 20067017179 A 20060825; US 59073605 A 20050120