Air conditioning apparatus
    102.
    发明授权

    公开(公告)号:US11739956B2

    公开(公告)日:2023-08-29

    申请号:US17143328

    申请日:2021-01-07

    摘要: An air conditioning apparatus is provided that may include an outdoor unit including a compressor and an outdoor heat exchanger and through which a refrigerant is circulated, an indoor unit through which a fluid, such as water is circulated, and at least one heat exchange device including a heat exchanger in which the refrigerant and the fluid are heat-exchanged with each other. The at least one heat exchange device may include a high-pressure guide tube that extends from a high-pressure gas tube of the outdoor unit so as to be connected to a first side of the heat exchanger, a low-pressure guide tube that extends from a low-pressure gas tube of the outdoor unit so as to be combined with the high-pressure guide tube, a liquid guide tube that extends from a liquid tube of the outdoor unit so as to be connected to a second side of the heat exchanger, and a solenoid valve installed in the high-pressure guide tube or the low-pressure guide tube to perform an opening and closing operation so as to allow the refrigerant to flow in a first direction. The high-pressure gas tube and the low-pressure gas tube may be connected to each other by a single gas tube, and when the indoor unit performs a cooling operation or a heating operation, flow of refrigerant in the first direction may be blocked in a state in which power is applied to the solenoid valve.

    Refrigerator
    105.
    发明授权

    公开(公告)号:US11732957B2

    公开(公告)日:2023-08-22

    申请号:US17747143

    申请日:2022-05-18

    发明人: Changseok Oh

    摘要: A refrigerator includes a cabinet including an inner case, and a drawer assembly installed in the inner case. The drawer assembly includes a basket which forms a receiving space and can be pulled in and out of the inner case, a supporter assembly connected to the basket to guide an insertion or withdrawal of the basket, and a cover connected to the supporter assembly to cover or uncover the receiving space. The cover may be movable in a direction opposite to a movement of the basket when the basket is inserted or withdrawn. The basket includes a protrusion configured to engage with or disengage from a notch of a connection member to facilitate or prevent transmission of a movement force of the basket to the cover.

    Condenser and turbo chiller having condenser

    公开(公告)号:US11732936B2

    公开(公告)日:2023-08-22

    申请号:US17528626

    申请日:2021-11-17

    IPC分类号: F25B39/04 F25B1/00

    CPC分类号: F25B39/04 F25B1/00

    摘要: A condenser and a turbochiller including a condenser are provided. The turbochiller may include a compressor including an impeller that compresses refrigerant and a motor that drives the impeller; a condenser for heat exchange between the refrigerant introduced from the compressor and cooling water; an evaporator for heat exchange between the refrigerant discharged from the condenser and cold water; an expansion valve provided between the condenser and the evaporator; and a collector configured to collect noncondensable gas inside of the condenser. Accordingly, it is possible to efficiently collect noncondensable gas inside of a condenser of a turbochiller.

    Lighting device
    108.
    发明授权

    公开(公告)号:US11732861B2

    公开(公告)日:2023-08-22

    申请号:US17617045

    申请日:2020-06-10

    发明人: Kwang Hyun Ko

    摘要: An embodiment relates to a lighting device. An embodiment may comprise a lighting device comprising: a light emitting module comprising a circuit board and a plurality of light emitting devices arranged on the circuit board; and a coupling member coupled to the lower surface of the circuit board, wherein the coupling member comprises: a head portion arranged on the lower surface of the circuit board and comprising a first side, a second side opposite the first side, a third side connected to the first side and the second side, and a fourth side opposite the third side; a first support portion extending from one end portion of the head portion in the vertical direction; a second support portion extending from the other end portion of the head portion in the vertical direction; a first elastic portion bent from the first support portion in an outward direction from the first support portion; a second elastic portion bent from the second support portion in an outward direction from the second support portion; a first detachment preventing portion extending from an end of the first elastic portion toward the first support portion; a second detachment preventing portion extending from an end of the second elastic portion toward the second support portion; a first leg portion extending from an end of the first detachment preventing portion toward the lower surface of the circuit board; and a second leg portion extending from an end of the second detachment preventing portion toward the lower surface of the circuit board, wherein the first leg portion has a plurality of first elastic pieces, the second leg portion has a plurality of second elastic pieces, the first elastic pieces of the first leg portion are inclined outwards from the first leg portion, and the second elastic pieces of the second leg portion are inclined outwards from the second leg portion.

    Robot cleaner
    110.
    发明授权

    公开(公告)号:US11712140B2

    公开(公告)日:2023-08-01

    申请号:US16985871

    申请日:2020-08-05

    发明人: Hwang Kim

    IPC分类号: A47L9/04 A47L9/28 A47L9/00

    摘要: Provided is a robot cleaner including a main body including a suction portion disposed therein, a main wheel for moving the main body, wherein a vertical level of the main wheel varies in a vertical direction with respect to the main body, an auxiliary wheel disposed at a front portion or a rear portion of the main body, wherein a vertical level of the auxiliary wheel is fixed with respect to the main body, and a driving member assembly disposed in the main body, wherein the driving member assembly varies a vertical level of the main body from a floor face while rotating in forward and rearward directions of the main body, wherein the driving member assembly has different hitting radii when rotating forward and rearward.