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    REFRIGERATING CYCLE APPARATUS AND METHOD FOR OPERATING THE SAME
    4.
    发明申请
    REFRIGERATING CYCLE APPARATUS AND METHOD FOR OPERATING THE SAME 审中-公开
    制冷循环装置及其操作方法

    公开(公告)号：US20150068229A1

    公开(公告)日：2015-03-12

    申请号：US14503756

    申请日：2014-10-01

    Applicant: LG ELECTRONICS INC.

    Inventor： Minkyu OH ,  Jangseok Lee ,  Myungjin Chung ,  Chanho Jeon ,  Sunam Chae ,  Juyeong Heo ,  Kwangwook Kim ,  Hoyoun Lee

    IPC: F25B49/02

    CPC classification number: F25B49/022 ,  F25B1/10 ,  F25B31/004 ,  F25B43/02 ,  F25B2400/073 ,  F25B2600/02 ,  F25B2600/2511 ,  F25B2700/03

    Abstract: A refrigerating cycle apparatus and a method of operating the same are provided. For a refrigerating cycle having a plurality of compressors connected in series for multi-stage compression, an inner space of each compressor and a pipe of the refrigerating cycle may be connected via an oil collection pipe, and oil may be discharged into the refrigerating cycle by pressure reversal during a pressure balancing operation, so as to allow the discharged oil to be collected into a high-stage compressor or a low-stage compressor. Accordingly, an amount of oil may be uniformly maintained in each of the plurality of compressors to prevent losses due to friction and/or increases in power consumption due to a lack of oil in one or more of the compressors. The structure of a device and pipes for performing oil balancing between the compressors may be simplified to enhance efficiency of the compressors.

    Abstract translation: 提供了一种制冷循环装置及其操作方法。 对于具有串联连接多级压缩的多台压缩机的制冷循环，每个压缩机的内部空间和制冷循环的管道可以经由采油管连接，并且可以通过以下方式将油排出到制冷循环中： 在压力平衡操作期间的压力反转，以便将排放的油收集到高级压缩机或低级压缩机中。 因此，可以在多个压缩机的每一个中均匀地保持一定量的油，以防止由于一个或多个压缩机中的油不足而导致的摩擦损失和/或功率消耗增加。 可以简化用于在压缩机之间执行油平衡的装置和管道的结构，以提高压缩机的效率。

    Method for controlling refrigerator
    5.
    发明授权
    Method for controlling refrigerator 有权

    公开(公告)号：US12235023B2

    公开(公告)日：2025-02-25

    申请号：US17433403

    申请日：2020-02-13

    Applicant: LG ELECTRONICS INC.

    Inventor： Seokjun Yun ,  Hyoungkeun Lim ,  Junghun Lee ,  Hoyoun Lee

    IPC: F25B21/02 ,  F25D11/02 ,  F25D17/06 ,  F25D29/00

    Abstract: A method for controlling a refrigerator according to an embodiment of the present invention comprises: if an ultra-low temperature compartment mode is turned on, performing control such that one of low voltage, middle voltage, high voltage, and reverse voltage is applied to the thermoelectric module according to the operation mode of the refrigerator; and if the temperature of the ultra-low temperature compartment is determined to be in a satisfactory temperature range, applying low voltage to the thermoelectric module by the control unit.

    Refrigerating cycle apparatus
    8.
    发明授权
    Refrigerating cycle apparatus 有权

    公开(公告)号：US09651285B2

    公开(公告)日：2017-05-16

    申请号：US13898665

    申请日：2013-05-21

    Applicant: LG ELECTRONICS INC.

    Inventor： Sangoh Kim ,  Hoyoun Lee

    IPC: F25B5/00 ,  F25B39/02 ,  F25B49/00 ,  F25B1/10 ,  F25B5/02 ,  F25B41/04 ,  F25B31/00

    CPC classification number: F25B49/00 ,  F25B1/10 ,  F25B5/02 ,  F25B31/004 ,  F25B41/04 ,  F25B2500/06 ,  F25B2600/2511

    Abstract: A refrigerating cycle apparatus is provided. The refrigerating cycle apparatus may include a refrigerant switching valve, which may be moved to a predetermined position through a simple circuit structure, during a blackout (power outage). Further, in a case in which input power is cut off due to a blackout, while the refrigerating cycle apparatus operates, oil may be collected. Even if input power is cut off due to a power outage, in a state in which the refrigerant switching valve is open while a refrigerating cycle apparatus having two compressors of two stages (2tage-2comp) is operating, the refrigerant switching valve may be converted to a closed state. This may reduce a pressure difference between the two compressors, and prevent damage to the compressors.

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