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    LAUNDRY DRYING MACHINE AND CONTROLLING METHOD OF LAUNDRY DRYING MACHINE
    1.
    发明申请
    LAUNDRY DRYING MACHINE AND CONTROLLING METHOD OF LAUNDRY DRYING MACHINE 审中-公开

    公开(公告)号：WO2022050825A1

    公开(公告)日：2022-03-10

    申请号：PCT/KR2021/012167

    申请日：2021-09-07

    Applicant: LG ELECTRONICS INC.

    Inventor： KIM, Jihoon ,  KIM, Youngmin ,  MOON, Chanwoo ,  LEE, Junghoon

    IPC: D06F58/26 ,  D06F58/08 ,  D06F58/40 ,  D06F58/44 ,  D06F34/18 ,  D06F34/10 ,  D06F58/46 ,  D06F58/48 ,  D06F34/14 ,  F26B3/347

    Abstract: The present invention relates to a laundry drying machine and a control method of the laundry drying machine, and includes a cabinet, a drum that is rotatably installed in the cabinet to accommodate a subject to be dried, and an electric field generator that is spaced apart from the drum and generates an electric field inside the drum when power is applied. The electric field generator includes an anode electrode that is spaced apart from the drum, fixed to the cabinet, and applies the electric field to the subject to be dried accommodated in the drum, a power supply unit that supplies the power to the anode electrode, and a matcher that is provided in the cabinet and matches source impedance of the power and an impedance of a load side. The drum is rotated at a preset agitating rotation speed in a state in which the power supply to the anode electrode is stopped, and the agitating rotation speed is greater than 0, less than 50 rpm, so that there is an effect that the subject to be dried can slide along the inner circumferential surface of the drum without falling.

    LAUNDRY DRYING MACHINE AND CONTROLLING METHOD OF LAUNDRY DRYING MACHINE
    2.
    发明申请
    LAUNDRY DRYING MACHINE AND CONTROLLING METHOD OF LAUNDRY DRYING MACHINE 审中-公开

    公开(公告)号：WO2022050826A1

    公开(公告)日：2022-03-10

    申请号：PCT/KR2021/012168

    申请日：2021-09-07

    Applicant: LG ELECTRONICS INC.

    Inventor： KIM, Jihoon ,  KIM, Youngmin ,  MOON, Chanwoo ,  LEE, Junghoon

    IPC: D06F58/26 ,  D06F58/08 ,  D06F58/40 ,  D06F58/44 ,  D06F34/18 ,  D06F34/10 ,  D06F58/46 ,  D06F58/48 ,  D06F34/14 ,  F26B3/347

    Abstract: The present invention relates to a laundry drying machine and a control method of the laundry drying machine, and includes a cabinet, a drum that is rotatably installed in the cabinet to accommodate a subject to be dried, and an electric field generator that is spaced apart from the drum and generates an electric field inside the drum when power is applied. The electric field generator includes an anode electrode that is spaced apart from the drum, fixed to the cabinet, and applies the electric field to the subject to be dried accommodated in the drum, a power supply unit that supplies the power to the anode electrode, and a matcher that is provided in the cabinet and matches source impedance of the power and an impedance of a load side. When the reflectivity of the electric field exceeds a predetermined ratio, the rotation speed of the drum is reduced to lower the reflectivity of the electric field, and thus, there is an effect of preventing damage to equipment such as the matcher due to the reflected wave.

    LAUNDRY DRYING MACHINE
    4.
    发明申请
    LAUNDRY DRYING MACHINE 审中-公开

    公开(公告)号：WO2022055288A1

    公开(公告)日：2022-03-17

    申请号：PCT/KR2021/012327

    申请日：2021-09-10

    Applicant: LG ELECTRONICS INC.

    Inventor： KIM, Jihoon ,  LEE, Junghoon ,  MOON, Chanwoo ,  KIM, Youngmin

    IPC: D06F58/26 ,  H01R4/66 ,  D06F58/06 ,  D06F58/08

    Abstract: The present invention relates to a laundry drying machine having a ground electrode capable of maintaining the grounding of a rotating drum in the process of drying a subject to be dried using a high frequency wave, including a drum body, a ground electrode and a support roller. The shortest distance between the central axis of the support roller and the ground electrode is determined to be shorter than the sum of the diameter of the drum body and the radius of the support roller, thereby maintaining the ground during the rotation of the drum to prevent spark generation.

    LAUNDRY DRYING MACHINE
    6.
    发明公开
    LAUNDRY DRYING MACHINE 审中-公开

    公开(公告)号：EP4015700A1

    公开(公告)日：2022-06-22

    申请号：EP21212675.9

    申请日：2021-12-07

    Applicant: LG Electronics Inc.

    Inventor： LEE, Junghoon ,  MOON, Chanwoo ,  KIM, Jihoon ,  KIM, Youngmin

    IPC: D06F58/26

    Abstract: The present invention relates to a laundry drying machine that heats and dries a subject to be dried by projecting RF electromagnetic wave onto the subject to be dried through a probe (450) disposed on a central axis inside a drum (200), and includes an oscillator (410), a probe (450) that is disposed in the inner space of the drum to radiate the electromagnetic wave, a guide (420) of hollow conductive waveguide that transmits the electromagnetic wave to the probe, and has an effect of improving drying efficiency by directly projecting the electromagnetic wave into the inner space of the drum through the probe disposed inside the drum to enlarge a resonance area of a subject to be dried and by transmitting high-power RF electromagnetic wave through the guide.

    APPARATUS AND METHOD FOR RECOGNIZING A PLURALITY OF WAKE-UP WORDS
    7.
    发明公开
    APPARATUS AND METHOD FOR RECOGNIZING A PLURALITY OF WAKE-UP WORDS 审中-公开

    公开(公告)号：EP3971887A1

    公开(公告)日：2022-03-23

    申请号：EP21154966.2

    申请日：2021-02-03

    Applicant: LG Electronics Inc.

    Inventor： CHOI, Woojin ,  KIM, Changhoe ,  KIM, Jihoon

    IPC: G10L15/08 ,  G10L15/30 ,  G10L15/32 ,  G10L15/22 ,  G06F3/16 ,  G10L25/78

    Abstract: Disclosed is an artificial intelligence apparatus for recognizing a plurality of wake-up words, including a microphone, a memory configured to store a first wake-up word recognition engine, a communication interface configured to communicate with a server storing a second wake-up word recognition engine, and a processor configured to acquire an audio signal through the microphone, generate a pre-processed audio signal from the acquired audio signal, extract a voice interval from the generated pre-processed audio signal, set a wake-up word recognition interval comprising the extracted voice interval and a buffer interval corresponding to the extracted voice interval in the generated pre-processed audio signal, wherein the wake-up word recognition interval is an interval used for recognizing wake-up words, and transmit the set wake-up recognition interval in the generated pre-processed audio signal to the first wake-up word recognition engine and the second wake-up word recognition engine.

    CIRCULATING PUMP DRIVING DEVICE AND LAUNDRY PROCESSING APPARATUS
    8.
    发明公开
    CIRCULATING PUMP DRIVING DEVICE AND LAUNDRY PROCESSING APPARATUS 审中-公开

    公开(公告)号：EP3819503A1

    公开(公告)日：2021-05-12

    申请号：EP19830931.2

    申请日：2019-07-05

    Applicant: LG Electronics Inc.

    Inventor： KIM, Junsung ,  KIM, Jihoon ,  LEE, Junho

    IPC: F04D15/02 ,  F04D15/00 ,  H02P27/06 ,  D06F39/08 ,  D06F37/30

    Abstract: The present disclosure relates to a circulation pump driving apparatus and a laundry treatment machine. A circulation pump driving apparatus and a laundry treatment machine according to an embodiment of the present disclosure includes an inverter converting a DC voltage from a converter into an alternating current (AC) voltage by a switching operation and outputting the converted AC voltage to a circulation pump motor, and a controller to control the circulation pump motor to operate in at least two modes among a first mode in which a speed of the circulation pump motor is constant, a second mode in which the speed of the circulation pump motor repeatedly rises and falls, and a third mode in which the speed of the circulation pump motor rises at a first rising slope and a second rising slope and then remains constant. Accordingly, it is possible to improve washing power due to circulation pumping during washing.

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