| CPC H02K 1/2766 (2013.01) [H02K 21/16 (2013.01); H02K 29/03 (2013.01)] | 6 Claims |
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1. A rotor comprising:
an iron core;
at least three adjacent magnet sets in the rotor that are directly next to each other, wherein each of the adjacent magnet sets respectively includes:
a plurality of permanent magnets housed in magnet slots different from each other formed in the iron core, and arranged in series magnetically; and
a flux barrier provided to be close to an end in a direction orthogonal to a direction of a main magnetic flux, for each of at least two permanent magnets among the plurality of permanent magnets arranged in series magnetically, wherein the magnet slots of each of the magnet sets includes a first magnetic slot and a second magnetic slot different from the first magnetic slot for respectively accommodating the at least two permanent magnets,
wherein for each magnet set, the first magnetic slot, the second magnetic slot, the flux barrier provided for one of the at least two permanent magnets and the flux barrier provided for another one of the at least two permanent magnets are interconnected to form a single hole,
wherein the plurality of the permanent magnets of each of the magnet sets include a first permanent magnet accommodated in the first magnetic slot and a second permanent magnet accommodated in the second magnetic slot, the second permanent magnet having a first end surface facing toward a space in the single hole between the first permanent magnet and the second permanent magnet and a second end surface opposite to the first end surface,
wherein the iron core includes an inner rib, the inner rib being in direct contact with the second end surface of the second permanent magnet of each of the magnet sets.
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