| CPC H02K 16/04 (2013.01) [H02K 5/207 (2021.01); H02K 9/06 (2013.01); H02K 11/33 (2016.01); H02K 2201/03 (2013.01)] | 20 Claims |
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1. A rotary device comprising a rotor part, a stator part, an inner support part, and a housing part,
wherein the inner support part is coupled and fixed to the housing part,
wherein the stator part includes an inner stator part which includes an inner iron core coupled and fixed to the inner support part, and an inner wire wound on the inner iron core; and an outer stator part which includes an outer iron core coupled and fixed to the inner circumferential surface of the housing part, and an outer wire wound on the outer iron core,
wherein the rotor part includes a rotor-side magnetic force application part which has an inner air gap between the inner circumferential side thereof and the inner stator part and an outer air gap between the outer circumferential side thereof and the outer stator part; and a pair of end support parts installed at respective ends of the rotor-side magnetic force application part,
wherein at least one of the pair of end support parts is coupled and fixed to a rotary shaft which is rotatably installed in the housing part,
wherein the rotor-side magnetic force application part includes:
a plurality of radial direction permanent magnets, and
a radial direction permanent magnet side surface support part for supporting the plurality of radial direction permanent magnets,
wherein the radial direction permanent magnets are arranged so that polarities of the permanent magnets are alternated between a →direction and a ← direction or between a ↑ direction and a ↓, direction along a circumferential direction from a rotation center of the rotor part,
wherein the radial direction permanent magnet side surface support part is fixed and coupled to the end support part so that radial direction permanent magnets are not scattered when the rotor part rotates, and
wherein the end support part and the radial direction permanent magnet side surface support part are made of a magnetic material through which a magnetic flux easily passes or a non-magnetic material, the end support part and the radial direction permanent magnet side surface support part has an integrated structure, a groove to which the radial direction permanent magnets are inserted is formed in the integrated structure, and the radial direction permanent magnets are attached to the integrated structure to prevent separation during rotation or inserted and coupled by applying an angle to a portion between the radial direction permanent magnet side surface support part, the end support part, and the radial direction permanent magnet.
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