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公开(公告)号：US10910910B2
公开(公告)日：2021-02-02
申请号：US16104555
申请日：2018-08-17
Applicant: WHIRLPOOL CORPORATION
Inventor： Mark J. Christensen , Mihir Kikale , Eduardo Abraham Lopez Benitez , Sushil Sakharam Paradhe
Abstract: A drive motor for a laundry appliance includes a stator having a plurality of windings that extend around teeth of the stator. A rotor is in electromagnetic communication with the stator. The rotor is coupled to a drive shaft that extends through the stator. When the winding of the stator is electrically energized, the rotor rotates relative to the stator at a predetermined range of rotational frequencies that includes a baseline natural frequency of the rotor. A harmonic-modulating member is attached to the rotor that modulates the baseline natural frequency of the rotor to be a modulated natural frequency. The predetermined range of rotational frequencies is free of the modulated natural frequency of the rotor.
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公开(公告)号：US11456638B2
公开(公告)日：2022-09-27
申请号：US17125375
申请日：2020-12-17
Applicant: WHIRLPOOL CORPORATION
Inventor： Mark J. Christensen , Mihir Kikale , Eduardo Abraham Lopez Benitez , Sushil Sakharam Paradhe
Abstract: A drive motor for a laundry appliance includes a stator having a plurality of windings that extend around teeth of the stator. A rotor is in electromagnetic communication with the stator. The rotor is coupled to a drive shaft that extends through the stator. When the winding of the stator is electrically energized, the rotor rotates relative to the stator at a predetermined range of rotational frequencies that includes a baseline natural frequency of the rotor. A harmonic-modulating member is attached to the rotor that modulates the baseline natural frequency of the rotor to be a modulated natural frequency. The predetermined range of rotational frequencies is free of the modulated natural frequency of the rotor.
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公开(公告)号：US20210104933A1
公开(公告)日：2021-04-08
申请号：US17125375
申请日：2020-12-17
Applicant: WHIRLPOOL CORPORATION
Inventor： Mark J. Christensen , Mihir Kikale , Eduardo Abraham Lopez Benitez , Sushil Sakharam Paradhe
Abstract: A drive motor for a laundry appliance includes a stator having a plurality of windings that extend around teeth of the stator. A rotor is in electromagnetic communication with the stator. The rotor is coupled to a drive shaft that extends through the stator. When the winding of the stator is electrically energized, the rotor rotates relative to the stator at a predetermined range of rotational frequencies that includes a baseline natural frequency of the rotor. A harmonic-modulating member is attached to the rotor that modulates the baseline natural frequency of the rotor to be a modulated natural frequency. The predetermined range of rotational frequencies is free of the modulated natural frequency of the rotor.
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公开(公告)号：US20200059130A1
公开(公告)日：2020-02-20
申请号：US16104555
申请日：2018-08-17
Applicant: WHIRLPOOL CORPORATION
Inventor： Mark J. Christensen , Mihir Kikale , Eduardo Abraham Lopez Benitez , Sushil Sakharam Paradhe
Abstract: A drive motor for a laundry appliance includes a stator having a plurality of windings that extend around teeth of the stator. A rotor is in electromagnetic communication with the stator. The rotor is coupled to a drive shaft that extends through the stator. When the winding of the stator is electrically energized, the rotor rotates relative to the stator at a predetermined range of rotational frequencies that includes a baseline natural frequency of the rotor. A harmonic-modulating member is attached to the rotor that modulates the baseline natural frequency of the rotor to be a modulated natural frequency. The predetermined range of rotational frequencies is free of the modulated natural frequency of the rotor.
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