Motor and rotor

A motor comprising single motor sections in three stages arranged in order of a first stage, a second stage, and a third stage in an axial direction,

• each of the single motor sections includes:
• a rotor section including:
• a first rotor core including a plurality of claw-like magnetic poles in a circumferential direction;
• a second rotor core including a plurality of claw-like magnetic poles in the circumferential direction;
• and
• a permanent magnet arranged between the first and second rotor cores and magnetized in the axial direction;
• and
• a stator section including:
• a first stator core including a plurality of claw-like magnetic poles in the circumferential direction;
• a second stator core including a plurality of claw-like magnetic poles in the circumferential direction;
• and
• a winding wire arranged between the first and second stator cores and wound around in the circumferential direction, wherein
• in at least one of the rotor section and the stator section in the single motor section of the second stage, the plurality of claw-like magnetic poles are provided at unequal intervals in the circumferential direction.

A motor comprising single motor sections in a plurality of stages arranged in an axial direction,

• each of the single motor sections including:
• a rotor section including:
• a first rotor core including a plurality of first rotor side claw-like magnetic poles in a circumferential direction;
• a second rotor core including a plurality of second rotor side claw-like magnetic poles in the circumferential direction;
• and
• a magnetic field magnet arranged between the first and second rotor cores assembled to each other,
• the rotor section causing the first and second rotor side claw-like magnetic poles to alternately function as different magnetic poles;
• and
• a stator section including:
• a first stator core including a plurality of first stator side claw-like magnetic poles in the circumferential direction;
• a second stator core including a plurality of second stator side claw-like magnetic poles in the circumferential direction;
• and
• a coil section arranged between the first and second stator cores assembled to each other,
• the stator section being capable of switching polarities of the first and second stator side claw-like magnetic poles on the basis of energization to the coil section, wherein
• the single motor sections in the plurality of stages include (n+1) single motor sections for a U phase, n single motor sections for a V phase, and n single motor sections for a W phase, and
• the single motor sections for the U phase are arranged in stages located at axial two ends.

A rotor comprising:

• a magnetic field magnet magnetized in an axial direction;
• a first rotor core including:
• a first rotor core base arranged on one side in the axial direction of the magnetic field magnet;
• and
• a plurality of first claw-like magnetic poles located at equal intervals in an outer circumferential section of the first rotor core base and respectively bent to extend to the magnetic field magnet side in the axial direction;
• and
• a second rotor core including:
• a second rotor core base arranged on the other side in the axial direction of the magnetic field magnet;
• and
• a plurality of second claw-like magnetic poles located at equal intervals in an outer circumferential section of the second rotor core base and respectively bent to extend to the magnetic field magnet side in the axial direction,
• the second claw-like magnetic poles being respectively arranged between corresponding ones of the first claw-like magnetic poles of the first rotor core, wherein
• the magnetic field magnet causes the first claw-like magnetic poles to function as first magnetic poles and causes the second claw-like magnetic poles to function as second magnetic poles,
• the first claw-like magnetic poles of the first rotor core are coupled to each other by a ring-like first annular auxiliary magnet including a plurality of first magnet sections that control leakage fluxes from the first claw-like magnetic poles to the second claw-like magnetic poles adjacent thereto in the circumferential direction, and
• the second claw-like magnetic poles of the second rotor core are coupled to each other by a ring-like second annular auxiliary magnet including a plurality of second magnet sections that control leakage fluxes from the second claw-like magnetic poles to the first claw-like magnetic poles adjacent thereto in the circumferential direction.