公开(公告)号：US20220110496A1

公开(公告)日：2022-04-14

申请号：US17556325

申请日：2021-12-20

Applicant: LG Electronics Inc.

Inventor： Daeho CHANG ,  Ingyu YANG ,  Donggeun LEE

IPC: A47L9/14 ,  A47L9/28 ,  A47L9/00 ,  A47L5/24

Abstract: A cleaner system includes a cleaner and a cleaner station that performs a method for removing residual dust. The cleaner station is configured to suction dust stored in the cleaner. Residual dust in the cleaner station after suctioning dust in a dust bin of the cleaner is suctioned through a bypass hole that penetrates an outside and an inside of a suction tube.

公开(公告)号：US20210068313A1

公开(公告)日：2021-03-04

申请号：US17010935

申请日：2020-09-03

Applicant: LG Electronics Inc.

Inventor： Seongju KIM ,  Donggeun LEE

IPC: H05K7/20 ,  A47L9/28 ,  H02K11/33 ,  H02P27/06

Abstract: A motor driving apparatus for a cleaner includes a DC terminal capacitor, an inverter including switching elements configured to convert the DC power into AC power, a motor configured to operate the inverter, an impeller connected to the motor and configured to circulate air, and a printed circuit board having a first surface that mounts the switching elements and faces toward the motor and the impeller, and a second surface that mounts the DC terminal capacitor. The printed circuit board includes circuit elements mounted on a first area of the first surface and configured to carry a current having a level greater than or equal to a predetermined level. The first area is positioned in a flow path of the air circulated by the impeller.

公开(公告)号：US20210021220A1

公开(公告)日：2021-01-21

申请号：US16929636

申请日：2020-07-15

Applicant: LG Electronics Inc.

Inventor： Jungsong MOON ,  Seongju KIM ,  Donggeun LEE

IPC: H02P21/09 ,  H02P21/18 ,  H02P21/22 ,  H02P27/12

Abstract: A motor driving apparatus and a control method thereof, including a dc-link capacitor configured to store DC power, an inverter including a plurality of switching elements and converting the DC power stored in the dc-link capacitor into AC power to output the power to a motor, a dc-link resistor element disposed between the dc-link capacitor and the inverter; and a controller configured to control an operation of the inverter. The controller calculates a phase difference between a first reference voltage vector among a plurality of reference voltage vectors that are preset on the space vector and a voltage command, generates a switching frequency, determines a first operating point located in a dead band that is a one-phase current undetectable area in one switching cycle and a second operating point located at an outer position including a boundary of the dead band, and controls operation of the plurality of switching elements.

公开(公告)号：US20200015644A1

公开(公告)日：2020-01-16

申请号：US16509866

申请日：2019-07-12

Applicant: LG Electronics Inc.

Inventor： Dongjae LEE ,  Hwayeong KANG ,  Jinho KIM ,  Donggeun LEE

IPC: A47L9/04 ,  A47L11/40

Abstract: A nozzle for a cleaner may comprise a nozzle housing and a rotation cleaning unit rotatably disposed under the nozzle housing. The rotation cleaning unit may comprise a mop configured to clean a floor and a rotation plate coupled to the mop. The nozzle may comprise a driving device disposed in the nozzle housing and comprising a motor configured to drive the rotation cleaning unit, and a water tank mounted on the nozzle housing and configured to store water. The mop may comprise a floor cleaning portion, an attaching portion disposed above the floor cleaning portion to be coupled to the rotation plate, and an upper absorbing portion disposed above the floor cleaning portion and at least partially overlapping the attaching portion. The upper absorbing portion may be sewn to the attaching portion and may be configured to absorb water from the water tank.

公开(公告)号：US20140137423A1

公开(公告)日：2014-05-22

申请号：US14086000

申请日：2013-11-21

Applicant: LG Electronics Inc.

Inventor： Youngsuk CHUNG ,  Donggeun LEE ,  Myoungjong KIM

IPC: D06F58/20

CPC classification number: D06F58/206 ,  D06F58/02 ,  D06F58/20

Abstract: A dryer with a heat pump that includes a cabinet, a drum installed within the cabinet, and an exhaust duct configured to exhaust air from the drum to outside of the cabinet. The dryer also includes a fan configured to inhale air from the drum and pump the air to the exhaust duct, an evaporator configured to exchange heat with air being exhausted through the exhaust duct, and a condenser disposed at a rear side of the drum. The dryer further includes an intake passage member configured to guide air that has passed through the condenser into the drum and a compressor and an expansion apparatus configured to define a heat pump along the evaporator and condenser.

Abstract translation: 一种具有热泵的干衣机，其包括机壳，安装在机壳内的滚筒和排气管道，该排气管道构造成将空气从滚筒排出到机柜外部。 干燥机还包括风扇，其构造成吸入来自滚筒的空气并将空气泵送到排气管道，蒸发器构造成与通过排气管道排出的空气进行热交换，以及设置在滚筒后侧的冷凝器。 干燥机还包括构造成将已经通过冷凝器的空气引导到滚筒中的进气通道构件以及构造成沿着蒸发器和冷凝器限定热泵的压缩机和膨胀装置。