Invention Grant
US07683515B2 Rotating field machine with bell-shaped rotor 有权
旋转现场机具有钟形转子

  • Patent Title: Rotating field machine with bell-shaped rotor
  • Patent Title (中): 旋转现场机具有钟形转子
  • Application No.: US11630944
    Application Date: 2005-03-08
  • Publication No.: US07683515B2
    Publication Date: 2010-03-23
  • Inventor: Heinz LeiberThomas Leiber
  • Applicant: Heinz LeiberThomas Leiber
  • Agency: Robert Becker & Associates
  • Agent Robert W. Becker
  • Priority: DE102004030063 20040623
  • International Application: PCT/EP2005/002441 WO 20050308
  • International Announcement: WO2006/000260 WO 20060105
  • Main IPC: H02K21/12
  • IPC: H02K21/12
Rotating field machine with bell-shaped rotor
Abstract:
An electrical drive comprising stationary outer and inner stators; a rotatably mounted rotor with at least one pot-shaped element having a cylindrical wall and a base wall, wherein the cylindrical wall is thin-walled and made of magnetic material, wherein the base wall extends perpendicular and a cylindrical coaxial to a rotor shaft axis and the base wall is connected to the rotor shaft for transfer of torque; at least one electrical excitation coil; and a plurality of permanent magnet elements secured to the rotor for producing an excitation flux, wherein the magnet elements rest only against a radially inner side of the cylindrical wall and in the circumferential direction are disposed next to one another, wherein the magnet elements, together with the stators, form magnetic circuits that pass radially entirely through the cylindrical wall, and wherein the radial thickness of the magnet elements is greater than the thickness of the cylindrical wall.
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