US 12,255,522 B2
Motor
Makoto Otsuka, Nagano (JP)
Assigned to MINEBEA MITSUMI Inc., Nagano (JP)
Filed by MINEBEA MITSUMI Inc., Nagano (JP)
Filed on Sep. 14, 2022, as Appl. No. 17/932,042.
Claims priority of application No. 2021-163008 (JP), filed on Oct. 1, 2021.
Prior Publication US 2023/0107866 A1, Apr. 6, 2023
Int. Cl. H02K 9/22 (2006.01); H02K 9/06 (2006.01)
CPC H02K 9/227 (2021.01) [H02K 9/06 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A motor comprising:
a rotation shaft;
a blade provided at the rotation shaft;
a holder including a tubular member;
a rotor; and
a stator facing the rotor in a radial direction of the rotor, wherein
the stator is fixed to the tubular member,
the stator includes a magnetic body, a coil, and a resin member,
a part of the resin member enters into between windings of the coil,
another part of the resin member forms a side surface of the stator, and
another part of the resin member face the blade in an axial direction of the rotation shaft,
the resin member is arranged to be exposed to the outside of the holder in a radial direction, a heat sink is attached to a side surface of the stator in a radial direction, the heat sink includes a plurality of fins extending toward an outer side of the motor.