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OSCILLATING MOTOR AND ELECTRIC CLIPPERS

  • US 20180361601A1
  • Filed: 07/31/2018
  • Published: 12/20/2018
  • Est. Priority Date: 02/19/2016
  • Status: Active Grant
First Claim
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1. An oscillating motor, comprising:

  • a U-shaped magnetic yoke having a first support leg and a second support leg, and the first support leg and the second support leg are wound with coils;

    a control circuit electrically connected to the coils and generating alternating pulses to generate alternating magnetic poles at end faces of the the first support leg and the second support leg of the U-shaped magnetic yoke;

    a swing arm swingable around a fulcrum;

    wherein the swing arm extends outward from the end faces of the U-shaped magnetic yoke and is bounded by the fulcrum;

    an end of the swing arm close to the U-shaped magnetic yoke is an inner arm and the other end of the swing arm remote from the U-shaped magnetic yoke is an outer arm;

    a second magnetic yoke mounted at one end of the inner arm close to the U-shaped magnetic yoke; and

    a first permanent magnet, a second permanent magnet, a third permanent magnet, and a fourth permanent magnet being fixedly mounted on the second magnetic yoke;

    wherein the first permanent magnet, the second permanent magnet, the third permanent magnet, and the fourth permanent magnet are orderly spaced and distributed on a same circumference centered on the fulcrum;

    radial end faces of the first permanent magnet and of the fourth permanent magnet have a same polarity;

    radial end faces of the second permanent magnet and of the third permanent magnet have a same polarity;

    the radial end faces of the first permanent magnet and the second permanent magnet have opposite polarities and are provided corresponding to an end face of the first support leg;

    the radial end faces of the third permanent magnet and the fourth permanent magnet have opposite polarities and are provided corresponding to an end face of the second support leg;

    an air gap is provided between the end faces of the first permanent magnet and the second permanent magnet and of the corresponding first support leg and an air gap is provided between the end faces of the third permanent magnet and the fourth permanent magnet and of the corresponding second support leg.

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