公开(公告)号：US20220034575A1

公开(公告)日：2022-02-03

申请号：US17500261

申请日：2021-10-13

Applicant: LG ELECTRONICS INC.

Inventor： Myungkeun YOO ,  Yongdae KIM ,  Hohyun SON

IPC: F25D21/14

Abstract: A drip tray provided in a machine compartment of a refrigerator including a fan assembly accommodation space blocked from a defrosted water storage space via an inner wall such that defrosted water does not flow into the fan assembly accommodation space. The fan assembly includes a cutout, wherein the cut-out overlaps a portion of the defrosted water storage space beyond the inner wall when the fan assembly is provided in the fan assembly accommodation space.

公开(公告)号：US20180289229A1

公开(公告)日：2018-10-11

申请号：US15766701

申请日：2016-10-07

Applicant: LG Electronics Inc. ,  Seoul National University R&DB Foundation

Inventor： Jongwon KIM ,  Jungdae LEE ,  Myungkeun YOO ,  Junho AHN ,  Jungik HA ,  Sungho JUNG ,  Jaeyong PARK

IPC: A47L9/28 ,  H02P21/14 ,  H02P27/06

Abstract: The present invention relates to a motor driving apparatus and a home appliance comprising the same. The motor driving apparatus according to an embodiment of the present invention comprises: an inverter which converts a direct current power source of a DC stage capacitor to an alternating current power source and outputs the converted alternating power source to a motor by a switching operation; a DC stage resistance device arranged between the DC stage capacitor and the inverter; and a control unit which controls the inverter on the basis of phase current sampled by means of the DC stage resistance device, wherein the control unit controls the frequency of voltage applied to the motor or the rotation frequency of the motor to be synchronized with the sampling frequency of the phase current sampled via the DC stage resistance device. Accordingly, it is possible to accurately calculate the phase current flowing through the motor by means of the DC stage resistance device.

公开(公告)号：US20240235324A9

公开(公告)日：2024-07-11

申请号：US18238828

申请日：2023-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon LEE ,  Myungkeun YOO ,  Changhum JO

IPC: H02K7/14 ,  B60K7/00 ,  H02K9/06 ,  H02K9/22

CPC classification number: H02K7/14 ,  B60K7/0007 ,  H02K9/06 ,  H02K9/227 ,  H02K2211/03

Abstract: A robot wheel driving apparatus includes a wheel to which a tire is coupled and configured to drive a robot, a wheel cover covering and coupled to both sides of the wheel, a motor housing inserted into the wheel, and a motor embedded in the motor housing and configured to provide a rotating force to the wheel. The wheel cover includes a wheel cover hole configured to allow air to flow from an outside of the wheel cover toward the wheel, and the wheel includes a wheel hole configured to allow air flowing into the wheel through the wheel cover hole to flow toward the motor housing, and a blade configured to allow air to flow between the wheel and the motor housing by rotation of the wheel.

公开(公告)号：US20240136889A1

公开(公告)日：2024-04-25

申请号：US18238828

申请日：2023-08-27

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon LEE ,  Myungkeun YOO ,  Changhum JO

IPC: H02K7/14 ,  B60K7/00 ,  H02K9/06 ,  H02K9/22

CPC classification number: H02K7/14 ,  B60K7/0007 ,  H02K9/06 ,  H02K9/227 ,  H02K2211/03

Abstract: A robot wheel driving apparatus includes a wheel to which a tire is coupled and configured to drive a robot, a wheel cover covering and coupled to both sides of the wheel, a motor housing inserted into the wheel, and a motor embedded in the motor housing and configured to provide a rotating force to the wheel. The wheel cover includes a wheel cover hole configured to allow air to flow from an outside of the wheel cover toward the wheel, and the wheel includes a wheel hole configured to allow air flowing into the wheel through the wheel cover hole to flow toward the motor housing, and a blade configured to allow air to flow between the wheel and the motor housing by rotation of the wheel.

公开(公告)号：US20190120541A1

公开(公告)日：2019-04-25

申请号：US16148266

申请日：2018-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Myungkeun YOO ,  Yongdae KIM ,  Hohyun SON

IPC: F25D21/14

Abstract: A drip tray provided in a machine compartment of a refrigerator including a fan assembly accommodation space blocked from a defrosted water storage space via an inner wall such that defrosted water does not flow into the fan assembly accommodation space. The fan assembly includes a cutout, wherein the cut-out overlaps a portion of the defrosted water storage space beyond the inner wall when the fan assembly is provided in the fan assembly accommodation space.