US 12,081,069 B2
Stator, rotary electric machine, drive device, and mobile unit
Atsushi Sugaya, Kyoto (JP)
Assigned to NIDEC CORPORATION, Kyoto (JP)
Filed by NIDEC CORPORATION, Kyoto (JP)
Filed on Mar. 1, 2022, as Appl. No. 17/684,316.
Claims priority of application No. 2021-036634 (JP), filed on Mar. 8, 2021.
Prior Publication US 2022/0286000 A1, Sep. 8, 2022
Int. Cl. H02K 1/14 (2006.01); H02K 3/50 (2006.01); H02K 3/52 (2006.01)
CPC H02K 1/148 (2013.01) [H02K 3/50 (2013.01); H02K 3/521 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A stator comprising:
a stator core including:
a core back in an annular shape surrounding a central axis of the stator; and
a plurality of teeth extending radially inward from the core back,
the stator core having:
a hole provided in a radially outer portion of the stator core, the hole extending in an axial direction; and
a weld provided on a radially outer surface of the stator core, and
the weld including a first weld provided on the radially outer surface of the stator core on a virtual line connecting the hole and the central axis as viewed in the axial direction, wherein
the core back has an outer peripheral surface in a cylindrical shape,
the stator core has a protruding portion that protrudes radially outward from an outer peripheral surface of the core back,
the hole is provided in the protruding portion, and
the first weld is provided on a radially outer surface of the protruding portion.