US 11,750,046 B2
Electric motor for an appliance
Krati Bhargava, Stevensville, MI (US); Fang Deng, Novi, MI (US); and James Hull, St. Joseph, MI (US)
Assigned to Whirlpool Corporation, Benton Harbor, MI (US)
Filed by WHIRLPOOL CORPORATION, Benton Harbor, MI (US)
Filed on Mar. 18, 2021, as Appl. No. 17/204,989.
Prior Publication US 2022/0302772 A1, Sep. 22, 2022
Int. Cl. H02K 1/14 (2006.01); H02K 1/02 (2006.01); H02K 1/18 (2006.01); H02K 5/24 (2006.01); H02K 7/14 (2006.01)
CPC H02K 1/145 (2013.01) [H02K 1/02 (2013.01); H02K 1/18 (2013.01); H02K 5/24 (2013.01); H02K 7/14 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An electric motor for an appliance comprising:
a tub;
a metallic hub molded within the tub to define a rotational axis;
a drum that is rotationally operable within the tub along the rotational axis; and
a stator attached to the metallic hub and a rotor that rotationally operates about the stator, the stator comprising:
an annular core made up of a laminated structure;
an overmold that extends around the core;
fastening portions located within an interior section of the overmold that is located within a central area of the core wherein the fastening portions of the stator include compression limiters that are injection molded within the interior section, wherein each compression limiter includes an outer wall having an outwardly extending perimetrical ridge that engages the interior section of the overmold; and
a bridge section of the overmold that extends from the interior section to at least one of an area above the core and an area below the core, the bridge section defining a toroidal cavity that extends between the core and the fastening portions.