Whirlpool Corporation

James B Hull

Krati Bhargava

Fang Deng

Christoph J Miller

Steven Fricke

Eric J Walsh

Peter Wagoner

Tarun Sai Yadav Godha

Weitao Yang

Orlando Starke

Hideraldo V Santos

Pingjian Xu

Dennis L Kehl

Jagtanand More

Wang Jun

An axial flux motor for an appliance includes a stator yoke. A plurality of stator teeth extend from the stator yoke in an axial direction and are positioned about a central rotational axis. Each stator tooth includes a plurality of laminations that extend in the axial direction and form a 'T' shaped member. The plurality of stator teeth are overmolded with a polymeric material to define a plurality of axial stator poles. At least one winding extends around the plurality of axial stator poles. A ring-shaped rotor rotates about the central rotational axis of the stator yoke. The rotor is positioned proximate an axial end of the plurality of axial stator poles.

Axial flux motor having rectilinear stator teeth

A laundry appliance includes a tub having a rear wall that includes a plurality of structural ribs. A drive hub has a bearing housing insert injection molded into the rear wall. A stator is attached to the drive hub at stator fastening portions exposed through the rear wall of the tub. A reinforcing cap is fixed to the structural ribs of the rear wall of the tub. The bearing housing of the drive hub extends rearwards through a portion of the reinforcing cap. The stator fastening portions are exposed through the reinforcing cap.

Reinforcing cap for a tub rear wall of an appliance

A motor for a laundry appliance includes a drive shaft coupled to a drum at a first end. The rotor frame is coupled proximate the second end of the drive shaft, where the rotor frame includes at least one polymeric material. A central hub includes a core and a perimetrical ring that extends circumferentially around the core. A plurality of recesses are defined within a planar surface of the perimetrical ring, wherein a portion of the polymeric material is received within the plurality of recesses to secure the rotor frame to the central hub.

Multi-component rotor for an electric motor of an appliance

According to one aspect of the present disclosure, an electric motor for a laundry appliance includes a first stator having a central axis. A first rotor is in electromagnetic communication with the first stator and is rotationally operable about the central axis. A second stator is aligned with the central axis. A second rotor is in electromagnetic communication with the second stator and is rotationally operable about the central axis. The first and second stators are positioned within a common motor cavity of an outer housing. A controller regulates a first electrical current to the first stator and a second electrical current to the second stator. The controller includes a torque discrimination module for monitoring an output torque of at least the first rotor.

Dual motor dryer drive contained within a common assembly

A laundry appliance includes a drum that is rotationally operable about a rotational axis within a tub. The rotational axis is oriented in a generally horizontal configuration. An impeller is rotationally operable within the drum about the rotational axis. A dual-rotor motor is coupled to the drum and the impeller for providing separate and independent rotation of the drum and impeller about the rotational axis. An inner rotor of the dual-rotor motor is coupled with the impeller and an outer rotor of the dual-rotor motor is coupled with the drum.

Double-rotor washing type drum washing machine

A stator for an appliance motor includes an annular core made up of a metallic plate that is spirally wound into a laminated structure. An overmold extends around the core and further defines an interior section and a bridge section that extends between the core and the interior section. The interior section includes stator fastening portions that are used to attach the stator to a tub. The bridge section includes a first radial structure that extends from the interior section to the core. The bridge section includes a second radial structure that extends from the interior section to the core. The core, the interior section and the first and second radial structures define a toroidal cavity within the bridge section.

Electric motor for an appliance

A laundry appliance includes a drum rotationally positioned within a structural cabinet. An impeller is rotationally positioned within the drum. The impeller is selectively and independently operable with respect to the drum. A binary motor has a first motor and a second motor disposed within a common housing. A first drive belt extends between the first motor and the drum. A second drive belt extends between the second motor and the impeller. The first and second motors engage the first and second drive belts on a belt side of the common housing.

Growing community of inventors

Saint Joseph, MI, United States of America

James B Hull