US 12,218,554 B2
Motor
Katsunori Sakuragi, Kitasaku-gun (JP); Yoshihito Fujie, Kitasaku-gun (JP); and Masahiko Anko, Kitasaku-gun (JP)
Assigned to MINEBEA MITSUMI Inc., Nagano (JP)
Filed by MINEBEA MITSUMI Inc., Nagano (JP)
Filed on Aug. 21, 2023, as Appl. No. 18/452,712.
Application 18/452,712 is a continuation of application No. 17/451,505, filed on Oct. 20, 2021, granted, now 11,770,054.
Claims priority of application No. 2020-182862 (JP), filed on Oct. 30, 2020.
Prior Publication US 2023/0402906 A1, Dec. 14, 2023
Int. Cl. H02K 11/33 (2016.01); H02K 1/04 (2006.01); H02K 5/16 (2006.01); H02K 11/30 (2016.01)
CPC H02K 11/33 (2016.01) [H02K 1/04 (2013.01); H02K 5/16 (2013.01); H02K 11/30 (2016.01); H02K 2203/03 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A motor, comprising:
a rotor;
a stator including a stator core, an insulator, and a coil wound around the stator core via the insulator;
a first substrate arranged at the stator;
a second substrate;
an electronic component arranged at the second substrate, and
a casing, wherein
the first substrate and the second substrate are spaced apart in a rotation axis direction of the rotor,
an annular space surrounding an outer circumference part of the first substrate and an outer circumference part of the second substrate is formed in the casing, and
air passes through the annular space.