Axial Flux Permanent Magnet Brushless Machine
First Claim
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1. An axial flux permanent magnet brushless machine comprising:
- a housing;
a stator comprising a stator core and a coil;
two rotors each including a permanent magnet, and positioned so as to sandwich the stator in the axial direction with air gaps being left between the rotors and the stator; and
a variable gap mechanism for changing distances of the air gaps;
wherein the variable gap mechanism operates from a power source that supplies other rotational power than a rotational power of the axial flux permanent magnet brushless machine, and changes the distances of the air gaps by shifting the rotors in the axial direction.
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Abstract
An axial flux permanent magnet brushless machine according to the present invention includes: a housing; a stator comprising a stator core and a coil; two rotors each including a permanent magnet, and positioned so as to sandwich the stator in the axial direction with air gaps being left between the rotors and the stator; and a variable gap mechanism for changing distances of the air gaps; wherein the variable gap mechanism operates from a power source that supplies other rotational power than a rotational power of the axial flux permanent magnet brushless machine, and changes the distances of the air gaps by shifting the rotors in the axial direction.
37 Citations
15 Claims
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1. An axial flux permanent magnet brushless machine comprising:
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a housing; a stator comprising a stator core and a coil; two rotors each including a permanent magnet, and positioned so as to sandwich the stator in the axial direction with air gaps being left between the rotors and the stator; and a variable gap mechanism for changing distances of the air gaps; wherein the variable gap mechanism operates from a power source that supplies other rotational power than a rotational power of the axial flux permanent magnet brushless machine, and changes the distances of the air gaps by shifting the rotors in the axial direction.
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2. An axial flux permanent magnet brushless machine comprising:
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a housing; a stator comprising a stator core and a coil; two rotors each including a output shaft and a permanent magnet, and positioned so as to sandwich the stator in the axial direction with air gaps being left between the rotors and the stator; a variable gap mechanism for changing distances of the air gaps; and a power source that supplies other rotational power than a rotational power of the axial flux permanent magnet brushless machine, and drives the variable gap mechanism; wherein the variable gap mechanism comprises two shifting shafts each with a screw portion and a gear portion and two nut portions each supporting the screw portion, and the screw portion is connected to the power source, and the variable gap mechanism shift the rotors due to movement of the shifting shafts each by rotation of the screw portion by the power source. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification