Invention Grant
US08115360B2 Electric machine with stepped winding structure 有权
电机具有阶梯式绕组结构

  • Patent Title: Electric machine with stepped winding structure
  • Patent Title (中): 电机具有阶梯式绕组结构
  • Application No.: US12505903
    Application Date: 2009-07-20
  • Publication No.: US08115360B2
    Publication Date: 2012-02-14
  • Inventor: Rolf Vollmer
  • Applicant: Rolf Vollmer
  • Applicant Address: DE München
  • Assignee: Siemens Aktiengesellschaft
  • Current Assignee: Siemens Aktiengesellschaft
  • Current Assignee Address: DE München
  • Agent Henry M. Feiereisen; Ursula B. Day
  • Priority: EP08013097 20080721
  • Main IPC: H02K21/00
  • IPC: H02K21/00 H02K21/24
Electric machine with stepped winding structure
Abstract:
An electric machine for direct drive or braking applications with coils providing improved power efficiency and heat transfer is disclosed. The electric machine has a coil body and a winding with a plurality of turns wound on the coil body. Each of the various turns is located in a separate plane. Respective end sections of two different turns are connected by a connecting element, with a major directional component of the connecting element being oriented in an axial direction perpendicular to the plane of one of the two turns. Axially adjacent turns can thereby be connected to one another together. This arrangement reduces or eliminates empty spaces in the slots, particularly when the turns are made from flat wire.
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