公开(公告)号：US20240383148A1

公开(公告)日：2024-11-21

申请号：US18689822

申请日：2022-05-25

Applicant: LG ELECTRONICS INC.

Inventor： Soonhong JUNG ,  Hyoungseok KIM

IPC: B25J9/16 ,  B25J13/08

Abstract: The present invention provides a robot and a method for controlling same. The robot according to an embodiment of the present invention may comprise: a light source unit including a plurality of light-emitting elements; a sensing unit which senses information related to a space from which light is output in the light source unit; and a control unit which makes the light source unit emit light so that an object existing in the space is recognized through the sensing unit, wherein the control unit makes at least one of the plurality of light-emitting elements emit light such that a light pattern that causes a recognition rate for recognizing the object, to be greater than or equal to a preset value, is irradiated to the space.

公开(公告)号：US20240297536A1

公开(公告)日：2024-09-05

申请号：US18280895

申请日：2021-03-09

Applicant: LG ELECTRONICS INC.

Inventor： Hyoungseok KIM ,  Jonggu KIM ,  Seonghun LEE ,  Jaeyeol KIM

IPC: H02J50/90 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80

CPC classification number: H02J50/90 ,  H02J50/12 ,  H02J50/402 ,  H02J50/80

Abstract: The present invention relates to a wireless power transmission device and a wireless power system comprising same. The wireless power transmission device and wireless power system comprising same, according to one embodiment of the present invention, comprise: a coil assembly including a plurality of coils; a first resonant capacitor connected to a first group of the plurality of coils; and a second resonant capacitor connected to a second group of the plurality of coils, and connected in parallel to the first resonant capacitor, wherein the number of groups of the plurality of coils is smaller than the number of the plurality of coils. Accordingly, a circuit for the selection and operation of at least some of the plurality of coils can be simply implemented, and charging can be quickly entered.

公开(公告)号：US20230344281A1

公开(公告)日：2023-10-26

申请号：US18024711

申请日：2021-09-06

Applicant: LG Electronics Inc.

Inventor： Hyoungseok KIM ,  Jaeyeol KIM ,  Seonghun LEE ,  Gyunghwan YOOK ,  Hongkwon KIM

IPC: H02J50/80 ,  H02J50/60 ,  H02J50/40 ,  H02J50/12

CPC classification number: H02J50/80 ,  H02J50/60 ,  H02J50/402 ,  H02J50/12

Abstract: A wireless power transmitting device according to an embodiment of the present specification relates to a wireless power transmitting device for transmitting wireless power to a wireless power receiving device, and comprises: a power conversion circuit including a primary coil for transmitting the wireless power to the wireless power receiving device; and a communication/control circuit for communicating with the wireless power receiving device and controlling the power conversion circuit, wherein, before transmitting the wireless power to the wireless power receiving device, the communication/control circuit temporarily applies driving power to the primary coil and then stops the transmission of the driving power, and obtains a quality factor on the basis of a change in the voltage or current of the primary coil during a period of time in which the transmission of the driving power is stopped.

公开(公告)号：US20230318363A1

公开(公告)日：2023-10-05

申请号：US18024675

申请日：2021-09-06

Applicant: LG Electronics Inc.

Inventor： Hyoungseok KIM ,  Jaeyeol KIM ,  Seonghun LEE ,  Gyunghwan YOOK ,  Hongkwon KIM

IPC: H02J50/60 ,  H02J50/10 ,  H02J50/80

CPC classification number: H02J50/60 ,  H02J50/10 ,  H02J50/80

Abstract: A wireless power transmitting device according to an embodiment of the present specification transmits wireless power to a wireless power receiving device, and includes a power conversion circuit including a primary coil for transmitting the wireless power to the wireless power receiving device and a communication/control circuit for communicating with the wireless power receiving device and controlling the power conversion circuit, wherein, to detect foreign substances between the wireless power receiving device and the wireless power transmitting device, the communication/control circuit stops the transmission of the wireless power for a slot time, detects the foreign substances on the basis of a change in the voltage or current of the primary coil within the slot time, and sets the slot time to start from a point in time when the current of the primary coil is 0.

公开(公告)号：US20180043619A1

公开(公告)日：2018-02-15

申请号：US15557989

申请日：2015-06-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyoungseok KIM ,  Kyujin CHOI

IPC: B29C64/357 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/264

CPC classification number: B29C64/357 ,  B29C64/129 ,  B29C64/264 ,  B33Y30/00 ,  B33Y40/00

Abstract: A three-dimensional (3D) printing apparatus is provided. The 3D printing apparatus includes a modeling material circulating part for circulating a modeling material for modeling a 3D model, a light source unit disposed on one side of the modeling material circulating part to supply light toward the modeling material so that the modeling material is cured, a stage on which the modeling material cured through the light source unit is seated, the stage being disposed to face the modeling material circulating part, a stage driving part connected to the stage to provide a driving force for moving the stage, a modeling material supply part for supplying the modeling material to the modeling material circulating part, a modeling material collecting part for collecting the modeling material, which passes through the light source unit, of the modeling material circulating by the modeling material circulating part, and a modeling material recycling part connected to the modeling material collecting part to filter the collected modeling material to resupply the filtered modeling material to the modeling material circulating part.