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公开(公告)号：US12029380B2
公开(公告)日：2024-07-09
申请号：US17627968
申请日：2020-06-18
Applicant: LG ELECTRONICS INC.
Inventor： Sunku Kwon , Sehwa Choe , Donghyun Lim , Chaseung Jun
CPC classification number: A47L9/2842 , A47L5/225 , A47L5/24 , A47L5/28 , A47L5/362 , A47L9/0673 , A47L9/2805 , A47L9/2831 , A47L9/2847
Abstract: The present disclosure provides a control method for automatically detecting what kind of nozzle is a nozzle mounted on a cleaner by using different starting current profiles. The cleaner may include a suction unit for suctioning dust, and various nozzles which are detachable from the suction unit. The nozzle may include a rotation cleaning unit which is accommodated in the nozzle to clean a surface to be cleaned, and a nozzle driving unit for driving the rotation cleaning unit. The nozzle may exhibit different starting current profiles depending on the number of rotations or reduction ratio of the nozzle driving unit, or whether an auxiliary control unit is included.
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公开(公告)号：US11805967B2
公开(公告)日：2023-11-07
申请号：US17627917
申请日：2020-06-18
Applicant: LG ELECTRONICS INC.
Inventor： Sunku Kwon , Sehwa Choe , Donghyun Lim , Chaseung Jun
CPC classification number: A47L9/2831 , A47L5/30 , A47L5/362 , A47L9/0411 , A47L9/2842 , A47L9/2847 , A47L9/0477
Abstract: The present disclosure provides a control method capable of, by using a current value of a nozzle, determining whether a nozzle is separated from a vacuum cleaner and whether the nozzle is reconnected to the vacuum cleaner after separation. To this end, a vacuum cleaner may comprise a nozzle connectable to a suction unit for suctioning dusts. The nozzle may comprise a rotary cleaning unit for applying pressure to a cleaning target surface so as to separate a foreign substance therefrom, and a nozzle motor for driving the rotary cleaning unit. In order to drive the nozzle, a voltage having been controlled by a pulse width modulation (PWM) method is applied, and a measurement unit included in the vacuum cleaner may measure a current value of the nozzle, the current value depending on the applied voltage.
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公开(公告)号：US11705832B2
公开(公告)日：2023-07-18
申请号：US17744303
申请日：2022-05-13
Applicant: LG Electronics Inc.
Inventor： Sunku Kwon , Chaseung Jun , Sehwa Choe , Wookjin Lee
CPC classification number: H02P5/50 , H02P21/22 , H02P2201/03 , H02P2209/01
Abstract: A device for driving a plurality of motors, including an inverter connected to a DC terminal; a multi-phase motor connected to the inverter; and a single-phase motor serially connected to the multi-phase motor, wherein a number of frequency of current input to the multi-phase motor when driving the single-phase motor and the multi-phase motor at the same speed is smaller than the number of frequency of current input to the multi-phase motor when driving the single-phase motor and the multi-phase motor at different speeds. Accordingly, a plurality of motors can be simultaneously driven at different speeds, by using a single inverter.
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公开(公告)号：US20210044224A1
公开(公告)日：2021-02-11
申请号：US16987628
申请日：2020-08-07
Applicant: LG ELECTRONICS INC.
Inventor： Sunku Kwon , Chaseung Jun , Sehwa Choe , Wookjin Lee
IPC: H02P5/50
Abstract: A device for driving a plurality of motors and an electric apparatus having the same is disclosed. The device includes an inverter connected to a DC terminal, a multi-phase motor connected to the inverter, a single-phase motor serially connected to the multi-phase motor, and a first capacitor and a second capacitor connected in series between a first end and a second end of the DC terminal, wherein the single-phase motor is connected to the multi-phase motor, and a node between the first capacitor and the second capacitor. Accordingly, a plurality of motors serially connected with each other can be driven by using a single inverter.
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公开(公告)号：US09255354B2
公开(公告)日：2016-02-09
申请号：US13659060
申请日：2012-10-24
Applicant: LG Electronics Inc.
Inventor： Chaseung Jun , Byungkeol Choi , Youngmin Kim , Dongwon Kim , Hyundong Kim , Hwanjin Jung , Byungwook Min , Kyeonghwan Kim , Jinwoong Kim , Changwoo Son , Hyunseok Seo
IPC: D06F37/30 , D06F37/04 , D06F33/02 , D06F35/00 , B23P11/00 , B23P11/02 , H02K1/27 , H02K21/12 , H02K1/16 , H02K1/28 , H02K3/52 , H02K7/00 , H02K7/14 , H02K11/00 , H02K16/02 , D06F37/00 , D06F37/06 , D06F37/26 , D06F31/00 , H02K21/16 , H02K21/22 , D06F23/02
CPC classification number: D06F37/304 , B23P11/00 , B23P11/02 , D06F21/02 , D06F23/02 , D06F31/00 , D06F37/00 , D06F37/04 , D06F37/06 , D06F37/206 , D06F37/269 , D06F37/30 , H02K1/148 , H02K1/16 , H02K1/26 , H02K1/265 , H02K1/2706 , H02K1/2773 , H02K1/28 , H02K3/522 , H02K7/003 , H02K7/14 , H02K11/215 , H02K15/022 , H02K16/00 , H02K16/02 , H02K21/12 , H02K21/16 , H02K21/22 , H02K29/08 , Y02B40/52 , Y10T29/49826 , Y10T29/49945
Abstract: A method for driving a washing machine that includes a main body, a tub disposed within the main body, a main drum rotatably mounted in the tub, a sub drum mounted in the main drum to be relatively rotatable with respect to the main drum, a driving motor, and a control unit to control operations of the driving motor includes producing a three-dimensional motion of laundry in the washing machine by moving the laundry in a circumferential direction and an axial direction simultaneously by relative motions of the main drum and the sub drum to perform the washing process while supplying washing water and detergent.
Abstract translation: 一种用于驱动洗衣机的方法，包括主体，设置在主体内的桶，可旋转地安装在桶中的主滚筒，安装在主滚筒中以相对于主滚筒相对旋转的副滚筒， 驱动电动机和控制单元来控制驱动电动机的操作包括通过主鼓和副的相对运动同时沿着圆周方向和轴向移动衣物来在洗衣机中产生衣物的三维运动 滚筒在提供洗涤水和洗涤剂的同时执行洗涤过程。
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Patent Agency Ranking
公开(公告)号：US11362601B2
公开(公告)日：2022-06-14
申请号：US16988329
申请日：2020-08-07
Applicant: LG Electronics Inc.
Inventor： Sunku Kwon , Chaseung Jun , Sehwa Choe , Wookjin Lee
Abstract: A device for driving a plurality of motors, including an inverter connected to a DC terminal; a multi-phase motor connected to the inverter; and a single-phase motor serially connected to the multi-phase motor, wherein a number of frequency of current input to the multi-phase motor when driving the single-phase motor and the multi-phase motor at the same speed is smaller than the number of frequency of current input to the multi-phase motor when driving the single-phase motor and the multi-phase motor at different speeds. Accordingly, a plurality of motors can be simultaneously driven at different speeds, by using a single inverter.
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公开(公告)号：US09290881B2
公开(公告)日：2016-03-22
申请号：US13659117
申请日：2012-10-24
Applicant: LG Electronics Inc.
Inventor： Chaseung Jun , Byungkeol Choi , Youngmin Kim , Dongwon Kim , Hyundong Kim , Hwanjin Jung , Byungwook Min , Kyeonghwan Kim , Jinwoong Kim , Changwoo Son , Hyunseok Seo
IPC: D06F37/30 , H02K1/26 , D06F37/20 , B23P11/00 , B23P11/02 , D06F37/04 , H02K1/27 , H02K21/12 , H02K1/16 , H02K1/28 , H02K3/52 , H02K7/00 , H02K7/14 , H02K11/00 , H02K16/02 , D06F37/00 , D06F37/06 , D06F37/26 , D06F31/00 , H02K21/16 , H02K21/22 , D06F23/02
CPC classification number: D06F37/304 , B23P11/00 , B23P11/02 , D06F21/02 , D06F23/02 , D06F31/00 , D06F37/00 , D06F37/04 , D06F37/06 , D06F37/206 , D06F37/269 , D06F37/30 , H02K1/148 , H02K1/16 , H02K1/26 , H02K1/265 , H02K1/2706 , H02K1/2773 , H02K1/28 , H02K3/522 , H02K7/003 , H02K7/14 , H02K11/215 , H02K15/022 , H02K16/00 , H02K16/02 , H02K21/12 , H02K21/16 , H02K21/22 , H02K29/08 , Y02B40/52 , Y10T29/49826 , Y10T29/49945
Abstract: A washing machine includes a main body defining an outer appearance, a tub disposed within the main body, a main drum rotatably mounted in the tub, and a sub drum mounted in the main drum to be relatively rotatable with respect to the main drum. The washing machine includes an outer shaft for rotating the main drum, an inner shaft for rotating the sub drum, being disposed inside the outer shaft, and a driving motor having a stator, an outer rotor connected to the inner shaft and rotatable outside the stator, and an inner rotor connected to the outer shaft and rotatable inside the stator. The washing machine also includes a spring washer inserted into a connection part of the outer shaft and the inner rotor that attenuates vibrations of the outer shaft to prevent noise and to prevent separation of the outer shaft due to the vibrations.
Abstract translation: 洗衣机包括限定外观的主体，设置在主体内的桶，可旋转地安装在桶中的主鼓，以及安装在主鼓中的相对于主鼓相对旋转的副滚筒。 洗衣机包括用于使主鼓旋转的外轴，用于使副鼓旋转的内轴，设置在外轴内部;以及驱动电动机，其具有定子，外转子连接到内轴并可定转位置 以及连接到外轴并且可在定子内旋转的内转子。 洗衣机还包括插入到外轴和内转子的连接部分中的弹簧垫圈，该弹簧垫圈衰减外轴的振动，以防止噪音和防止由于振动而使外轴分离。
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公开(公告)号：US09279209B2
公开(公告)日：2016-03-08
申请号：US13659059
申请日：2012-10-24
Applicant: LG Electronics Inc.
Inventor： Chaseung Jun , Byungkeol Choi , Youngmin Kim , Dongwon Kim , Hyundong Kim , Hwanjin Jung , Byungwook Min , Kyeonghwan Kim , Jinwoong Kim , Changwoo Son , Hyunseok Seo
IPC: D06F23/02 , D06F37/04 , D06F37/30 , H02K1/26 , B23P11/00 , B23P11/02 , H02K1/27 , H02K21/12 , H02K1/16 , H02K1/28 , H02K3/52 , H02K7/00 , H02K7/14 , H02K11/00 , H02K16/02 , D06F37/00 , D06F37/06 , D06F37/26 , D06F31/00 , H02K21/16 , H02K21/22
CPC classification number: D06F37/304 , B23P11/00 , B23P11/02 , D06F21/02 , D06F23/02 , D06F31/00 , D06F37/00 , D06F37/04 , D06F37/06 , D06F37/206 , D06F37/269 , D06F37/30 , H02K1/148 , H02K1/16 , H02K1/26 , H02K1/265 , H02K1/2706 , H02K1/2773 , H02K1/28 , H02K3/522 , H02K7/003 , H02K7/14 , H02K11/215 , H02K15/022 , H02K16/00 , H02K16/02 , H02K21/12 , H02K21/16 , H02K21/22 , H02K29/08 , Y02B40/52 , Y10T29/49826 , Y10T29/49945
Abstract: A washing machine includes a driving motor having a stator, an outer rotor connected to the inner shaft and rotatable outside the stator, and an inner rotor connected to the outer shaft and rotatable inside the stator. Stator slots, which are fixedly-installed as a coil are wound on stator teeth. The outer rotor and the inner rotor include rotor teeth, a permanent magnet and a bushing, spaced from an inner circumference of the stator and rotates centering around a rotor shaft by magnetic force. The rotor teeth includes a teeth extension portion extending from a side end of an outer circumference of the rotor teeth in a circumferential direction, a cut recess cut in a concaved manner from the outer circumference of the rotor teeth toward the center of the rotor shaft, and an insertion recess cut in a concaved manner in a radial direction from an inner circumference of the rotor teeth.
Abstract translation: 一种洗衣机包括具有定子的驱动电动机，与内轴连接的外转子，并且可旋转地定位在定子外部的转子，以及连接到外轴并可在定子内转动的内转子。 固定在线圈上的定子槽被缠绕在定子齿上。 外转子和内转子包括转子齿，永磁体和衬套，其与定子的内圆周隔开并且通过磁力以转子轴为中心旋转。 转子齿包括从圆周方向的转子齿的外周侧的端部延伸的齿延伸部，从转子齿的外周朝向转子轴的中心以凹部方式切断的切口凹部， 以及从转子齿的内周沿径向从凹部切下的插入凹部。
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公开(公告)号：US12301129B2
公开(公告)日：2025-05-13
申请号：US17909245
申请日：2021-03-03
Applicant: LG ELECTRONICS INC.
Inventor： Sangchul Han , Chaseung Jun , Sangju Lee , Taewoong Kong , Hyojin Choi , Jinwoo Park
Abstract: The present disclosure relates to a power converting device and a home appliance including the same. A power converting device according to an embodiment of the present disclosure comprises a first capacitor, a first switching element turned on to output a first voltage stored in the first capacitor to a first node which is one end of an inductive load, a second switching element, one end of which is connected to the first switching element and which is turned on to decrease the voltage of the first node to the first voltage, a third switching element turned on to output a second voltage greater than the first voltage to the first node which is one end of the inductive load, and a fourth switching element, one end of which is connected to the third switching element and which is turned on to decrease the voltage of the first node to the ground voltage. Accordingly, switching loss may be reduced when power is supplied to an inductive load.
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公开(公告)号：US12301053B2
公开(公告)日：2025-05-13
申请号：US17921843
申请日：2020-09-16
Applicant: LG Electronics Inc.
Inventor： Jinwook Cha , Chaseung Jun , Jaehoon Jeong , Charyeom Park
Abstract: A motor assembly includes a shaft configured to form a rotational axis of a motor, a rotor coupled to the shaft, and a plurality of cores provided along the circumference of the rotor and configured to form a magnetic path. The cores are spaced apart from the outer circumferential surface of the rotor by a predetermined distance and configured to surround at least a portion of the outer circumferential surface of the rotor, and each comprise: a pole shoe having a first surface parallel to the radial direction of the rotor; and a pole arm extending from the pole shoe toward the radially outer side of the rotor. Among the plurality of cores, the first surfaces formed on the pole shoes of adjacent cores are symmetrical with respect to the radial direction of the rotor.
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