Invention Grant
- Patent Title: Direct drive electric motor having stator and magnet configurations for improved torque capability
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Application No.: US16704622Application Date: 2019-12-05
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Publication No.: US11245317B2Publication Date: 2022-02-08
- Inventor: Fang Deng , Cheng Gong
- Applicant: WHIRLPOOL CORPORATION
- Applicant Address: US MI Benton Harbor
- Assignee: WHIRLPOOL CORPORATION
- Current Assignee: WHIRLPOOL CORPORATION
- Current Assignee Address: US MI Benton Harbor
- Agency: Price Heneveld LLP
- Main IPC: H02K16/02
- IPC: H02K16/02 ; H02K21/12 ; D06F21/02 ; D06F37/30

Abstract:
An electric motor for an appliance includes a rotor coupled with a drive shaft. The rotor includes a plurality of rotor magnets that each define a magnet assembly including a plurality of magnet portions having different magnet pole orientations. A stator is in electromagnetic communication with the rotor. A gap is defined between the stator and the rotor. The stator comprises a stator core. A plurality of stator poles define the gap. Stator magnets are positioned within the stator core and are located to partially define the gap. Each stator magnet defines a pair of flux paths that extend around an outer perimeter of the stator magnet and onto the gap. The different magnet pole orientations of the plurality of rotor magnets operate to direct an effective magnetic flux toward the gap.
Public/Granted literature
- US20210175785A1 DIRECT DRIVE ELECTRIC MOTOR HAVING STATOR AND MAGNET CONFIGURATIONS FOR IMPROVED TORQUE CAPABILITY Public/Granted day:2021-06-10
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