A kind of permanent-magnet DC brush motor

A kind of permanent-magnet DC brush motor

  • CN 101,807,840 B
  • Filed: 02/13/2009
  • Issued: 05/25/2016
  • Est. Priority Date: 02/13/2009
  • Status: Active Grant
First Claim
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1. a permanent-magnet DC brush motor, comprises stator and rotor, and described rotor comprises rotating shaft(31), be fixed to rotating shaft rotor core (32) and commutator (33), be wrapped in rotor core (32)Tooth on winding, it is characterized in that:

  • The commutator segment quantity of commutator (33) is less than the number of teeth amount of described rotor core (32);

    Described winding comprises some element groups, and each element group comprises at least two directly elements of serial connection,Two elements that are positioned at each element group head and the tail are directly connected to respectively two commutator segments, described two commutationsSheet is non-conterminous;

    Each element group only directly connects two commutator segments;

    What in each element group, be directly connected in series is eachIndividual element spacing setting, between included two elements of each element group, electrical angle is apart 360 °

    Integral multiple, and for any two element groups, in one of them element group directly each element of serial connection itBetween spaced tooth between each element of being directly connected in series in spaced tooth and another one element groupDifferent.

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