Clocks Driven By Synchronous Motors [g04c 15/00] Patents (Class 968/553)
  • Patent number: 11670974
    Abstract: A pump for a water-conducting appliance, the pump having an electric motor comprising: a rotor comprising a ferrite body with at least four magnetic poles, wherein the ferrite body has a lateral-circumferential magnetization; and a stator comprising a pole chain made of a stack of a plurality of straight transformer sheets and rounded to a circular configuration by bending the stacked transformer sheets, wherein the pole chain has a plurality of pole portions each comprising a pole tooth; and a plurality of winding cores attached to the respective pole teeth for accommodating coils of a three-phase winding comprising wires; wherein the wires of respective phases of the three-phase winding are routed spatially separated from each other and without mutual contact at an axial end surface of the pole chain between and along adjacent winding cores around the pole chain; and wherein the wires are supported and guided such that their positions relative to the pole chain are substantially maintained when the pole cha
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: June 6, 2023
    Assignee: Bleckmann GmbH & Co. KG
    Inventors: Heinz Frederic Hackl, Hubert Unterberger, Andreas Pleschinger
  • Patent number: 6603236
    Abstract: In an electromagnetic converter comprising a rotor arranged by including a permanent magnet, a yoke disposed in the vicinity of the rotor for flowing magnetic flux and a coil wound around the yoke, at least a portion of the yoke is composed of an amorphous metal magnetic material. The amorphous metal magnetic material is a Co amorphous metal or a Fe amorphous metal. The electromagnetic converter is a small generator, a motor and the like. In an electronic timepiece provided with a generator device, the Co amorphous metal magnetic material is used for a first yoke (stator) and the Fe amorphous metal magnetic material is used for a second yoke (coil core). In an electronically-controlled mechanical watch, the Co amorphous metal magnetic material is used for a yoke.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: August 5, 2003
    Assignee: Seiko Epson Corporation
    Inventor: Eiichi Nagasaka