Homopolar brushless alternative stepping DC motor

Homopolar brushless alternative stepping DC motor

  • CN 1,671,030 B
  • Filed: 03/18/2004
  • Issued: 05/23/2012
  • Est. Priority Date: 03/18/2004
  • Status: Active Grant
First Claim
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1. the brushless alternately stepping DC motor of a homopolarity;

  • Comprise constant pole pair of the same name answer main pole, electric demonstration DC-pulse pole pair of the same name answer main pole, DC power supply and control section thereof, complete machine supporting structure part;

    Normal conductive magnetism winding is assisted in forward and reverse startup;

    It is characterized in that;

    Said constant pole pair of the same name answer main pole be by the magnetic pole of the same name of the more than one constant magnets N utmost point or the S utmost point on the same group equi-spaced apart arrange the corresponding working face upper set of a side that is fixed on rotary structure and form;

    The DC-pulse pole pair of said electric demonstration magnetic pole of the same name answer main pole be by the magnetic pole identical of more than one DC pulse electromagnet with its corresponding constant pole polarity of the same name on the same group equi-spaced apart arrange the corresponding working face upper set of the opposing party that is fixed in the corresponding rotary structure and form;

    Said constant magnetic pole is made up of permanent magnet;

    Said DC pulse electromagnetic pole is made up of normal conductive magnet;

    Each constant magnetic pole is identical with the main pole end face standard stride values that each DC-pulse pole pair is answered;

    Interval between constant on the same group magnetic pole and on the same group the interval between the DC pulse electromagnetic pole be the standard stride values of a main pole end face;

    Said DC power supply and control section thereof comprise DC power supply and terminal and connection line and DC power supply control section;

    Said DC power supply and terminal thereof and connection line are civil power transformation rectification DC power supply and terminal and connection line, unit generation DC power supply and terminal thereof and connection line, accumulator direct current supply and terminal thereof and connection line;

    Said DC power supply control section comprises;

    rotor position detecting sensor and power supply thereof, signal transmission special circuit, two groups replace intermittent continuous current excitation controller and transmission special circuit, the auxiliary normal conductive magnetism winding excitation dc power switching controller of forward and reverse startup and transmit special circuit and brake reverse DC power supply direction selecting controller and the transmission special circuit;

    Identical and the two groups of DC pulse electromagnets that replace electricly of corresponding magnetic pole end face geometric center lines constitute a pair of direct current pulse electromagnetic utmost point;

    The logarithm of DC pulse electromagnetic pole is between 1-3;

    Corresponding many to the DC pulse electromagnetic pole;

    The distance arrangement of staggering a main pole end face of said DC-pulse magnetic pole logarithm five equilibrium standard stride values gained between the corresponding magnetic pole end face of each the DC-pulse pole pair geometric center lines;

    Logarithm according to the DC pulse electromagnetic pole;

    Said two groups replace intermittent continuous current excitation controller and transmission special circuit thereof adopt a pair of two groups replace the basic rest-set flip-flop of intermittent continuous current field power supply and transmission special circuit thereof, a pair of two groups replace intermittent continuous current field power supply bipolar power supply type resonance inverter and transmission special circuit thereof, two pairs four groups replace intermittent continuous current field power supply bipolar power supply type resonance inverter and transmission special circuit or three pairs six groups replace intermittent continuous current field power supply bipolar power supply type resonance inverter and transmission special circuit thereof;

    Said complete machine supporting structure partly be by mechanical rolling bearing be the bearing-type supporting of supporting constitute in rotary outer shroud type stator and interior axle type rotor complete machine supporting structure or outward turning rotatable in axle type stator and outer ring-like rotor complete machine supporting structure, alternately through each to two groups of DC pulse electromagnetic poles and the corresponding constant magnetic pole set same sex generation pushing torque realization motor rotation that repels each other.

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