The utility model discloses an
underwater propeller's no -shaft rotor structure, including inner shell, permanent
magnet and blade, the inner shell is the
pipe body that has the fluid passageway in the middle part, the permanent
magnet is equipped with a plurality, and
interval distribution along the outer
peripheral wall of inner shell, the blade is equipped with a plurality, and locates the inner wall of inner shell, the blade extends from the inner wall of
pipe body to the axle core. In actual design, still include the shell, wherein the shell is equipped with
stator (
magnetic inductance coil) and also presents the
pipe body shape, and the shell is equipped with the drive passageway, and the inner shell is located in the drive passageway, and can rotate relative to the drive passageway, wherein the inner shell is the integral of rotation axis and rotor, can provide greater torque therefore, reduces the
wear and tear, the inner extension setting of blade not only considers the
water flow efficiency, but also considers the ability of
foreign matter processing, even if the blade is hooked to the
foreign matter in the operation process, also can not easily influence the normal rotation of rotor, effectively improves the rotor operation stability, also improves its service life (that is smaller
wear and tear).