公开(公告)号：US11656186B2

公开(公告)日：2023-05-23

申请号：US17069179

申请日：2020-10-13

申请人： SK Siltron Co., LTD.

发明人： Chung Hyun Lee

IPC分类号： G01N21/95 ,  G01B11/24 ,  G06T7/00 ,  H01L21/66

CPC分类号： G01N21/9501 ,  G01B11/24 ,  G06T7/0006 ,  H01L22/12 ,  H01L22/20 ,  G06T2207/30148

摘要： Disclosed is a method for analyzing a shape of a wafer. The method includes measuring external shapes of a plurality of wafers, detecting a first point having a maximum curvature in an edge region of each wafer from measured values acquired in the measuring the external shapes of the wafers, detecting a second point spaced apart from the first point in a direction towards an apex of a corresponding one of the wafers, measuring a first angle formed between a first line configured to connect the first point and the second point and a front side of the corresponding one of the wafers, forming a thin film layer on a surface of each wafer, measuring a thickness profile of the thin film layer, and confirming a wafer in which a maximum value of the thickness profile of the thin film layer is the smallest among the wafers.

公开(公告)号：US11644208B2

公开(公告)日：2023-05-09

申请号：US17557350

申请日：2021-12-21

申请人： LG ELECTRONICS INC.

发明人： Min Suk Kwak ,  Gilun Hwang

IPC分类号： F24F11/49 ,  F24F11/64 ,  F24F11/84 ,  F24F11/86 ,  F24F140/20 ,  F24F140/12

CPC分类号： F24F11/49 ,  F24F11/64 ,  F24F11/84 ,  F24F11/86 ,  F24F2140/12 ,  F24F2140/20

摘要： An air conditioner and a method for detecting an incorrectly connected pipe in an air conditioner are provided. The air conditioner may detect an incorrectly connected pipe by performing a serial pipe inspection when three or less indoor units are connected to an outdoor unit through pipes and performing a group pipe inspection when four or more indoor units are connected to the outdoor unit through the pipes. The structure may enable detecting the incorrectly connected pipe among pipes connecting the outdoor unit to the indoor units within a shorter time.

公开(公告)号：US11644042B2

公开(公告)日：2023-05-09

申请号：US17173586

申请日：2021-02-11

申请人： LG ELECTRONICS INC.

发明人： Hanyoung Park ,  Yoonjei Hwang

IPC分类号： F04D27/02 ,  F04D29/041 ,  F04D29/048 ,  F04D27/00 ,  F04D17/12

CPC分类号： F04D27/02 ,  F04D17/12 ,  F04D27/001 ,  F04D27/0261 ,  F04D29/048 ,  F04D29/0413 ,  F05D2270/334

摘要： A compressor that vibrates a rotary shaft or changes an operating frequency of a motor, in response to a vibration frequency of a discharge passage falling outside of a normal range. The compressor may include one or more impeller configured to draw in and compress refrigerant; a motor configured to rotate the one or more impeller; a rotary shaft, to which the one or more impeller and the motor are coupled; at least two thrust bearings that limit vibration of the rotary shaft; a vibration measuring sensor configured to measure a vibration frequency of a discharge passage; and a controller configured to control the at least two thrust bearings based on the vibration frequency. Upon determining that the vibration frequency falls outside of a normal vibration frequency range, the controller controls the at least two thrust bearings to vibrate the rotary shaft a predetermined number of times.

公开(公告)号：US11638506B2

公开(公告)日：2023-05-02

申请号：US17106043

申请日：2020-11-27

申请人： LG ELECTRONICS INC.

发明人： Woo Hong ,  Sangik Lee ,  Jongho Park

IPC分类号： A47L9/04 ,  A47L9/28

摘要： A robot cleaner includes a main body that autonomously travels, a suction nozzle configured to move up and down or swing with respect to the main body, and a support to support the suction nozzle. The robot cleaner may respond to a change in a height of a floor to improve travel performance and may respond better to obstacles. Even when a height difference of the floor is large, cleaning performance may be improved by maintaining contact and increasing a suction pressure of the suction nozzle.

公开(公告)号：US11635782B2

公开(公告)日：2023-04-25

申请号：US17727730

申请日：2022-04-23

申请人： LG ELECTRONICS INC.

发明人： Yeonsik Ha

IPC分类号： G05G1/12 ,  G05G1/08 ,  F24C3/12 ,  G05G1/10 ,  G05G25/00

摘要： A knob assembly includes a front panel, a knob located at a front side of the front panel and configured to rotate based on operation by a user, a knob shaft that is coupled to the knob and that extends through the front panel, a supporting pipe that receives the knob shaft and that supports the knob shaft, the supporting pipe being configured to maintain a position relative to the front panel, a valve configured to control supply of gas to the appliance, a valve shaft connected to the valve and configured to control the valve to adjust a flow rate of gas based on rotation of the valve shaft, and a joint that couples the knob shaft to the valve shaft and that is configured to transfer at least one of a rotational motion or a linear motion of the knob shaft to the valve shaft.

公开(公告)号：US11635251B2

公开(公告)日：2023-04-25

申请号：US16582755

申请日：2019-09-25

申请人： LG ELECTRONICS INC.

发明人： Seonwoo Choi

IPC分类号： F25D25/02 ,  F25D23/02 ,  F25D25/00 ,  A47B88/457 ,  A47B88/90

摘要： A refrigerator may include a rack gear assembly provided on a lower surface of a drawer. The rack gear assembly may have a first rack member and a second rack member that are pushed out by being moved forward sequentially so that a pushing-out distance of the drawer is maximized and the drawer is fully closed even when opposite sides thereof are pushed in a storage chamber without being in parallel.

公开(公告)号：US11635069B2

公开(公告)日：2023-04-25

申请号：US17462358

申请日：2021-08-31

申请人： LG ELECTRONICS INC.

发明人： Kiyeon Lee ,  Seungwook Kim ,  Kyeongho Kim

IPC分类号： F04B39/10

摘要： A hermetic compressor equipped with a valve assembly may include a valve plate having one suction port and a plurality of discharge ports; a suction valve provided at a first surface of the valve plate; a discharge valve provided at a second surface of the valve plate and having one fixing portion and a plurality of opening and closing portions that extends from the one fixing portion to respectively open and close the plurality of discharge ports; and a valve stopper that is fixed to the valve plate and limits a degree of opening of the opening and closing portions of the discharge valve. Accordingly, the opening and closing portions of the discharge valve may be reduced in size to thereby reduce inertia of the discharge valve. Thus, response of the discharge valve may be increased while simplifying a structure and assembly of the discharge valve.

公开(公告)号：US11633028B2

公开(公告)日：2023-04-25

申请号：US17077922

申请日：2020-10-22

申请人： LG ELECTRONICS INC.

发明人： Kyoungtae Kim ,  Hyunchul Kim ,  Yunhee Ku ,  Rayoung Park ,  Dongwon Kim

IPC分类号： A45D20/12

摘要： A hair dryer includes a main body, a handle, and a diffuser. The diffuser includes a diffusing case and a discharge cover. The discharge cover includes a plurality of massage protrusions protruding forward to press a target located in front of the discharge cover and at least one moisture measurement protrusion provided to measure a moisture amount of the target.

公开(公告)号：US11629316B2

公开(公告)日：2023-04-18

申请号：US16614849

申请日：2018-05-17

申请人： LG ELECTRONICS INC.

发明人： Daewoong Lee ,  Yongbum Kim ,  Jinpyo Hong

IPC分类号： C12C13/10 ,  F25B1/00 ,  F25B49/02 ,  B67D1/00 ,  C12C13/00 ,  C12C11/06 ,  C12C13/02

摘要： A beverage maker according to an embodiment of the present disclosure may comprise: a base; a fermentation module which comprises a fermenter module having an opening part, and a fermentation lid for opening and closing the opening part, and which is disposed on the upper side of the base; a passage module connected to the fermentation module and comprising at least one passage and at least one valve; and a main frame disposed on the upper side of the base and having at least a part of the passage module mounted thereto.

公开(公告)号：US11625040B2

公开(公告)日：2023-04-11

申请号：US17196070

申请日：2021-03-09

申请人： LG ELECTRONICS INC.

发明人： Minkuk Jung ,  Jeongwoo Ju

IPC分类号： G05D1/02

摘要： A moving robot according to an aspect of the present invention includes a body configured to define an exterior, a travelling unit configured to move the body against a travelling surface of a travelling area, a storage configured to store a grid map corresponding to a travelling area and cost information of grids included in the grid map, and a controller configured to generate a movement route based on the cost information, control the travelling unit to travel according to the generated movement route, and increase a stay cost of a grid corresponding to a route that has passed during the travelling and control the storage to store the increased stay cost.