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    USAGE AS REFRIGERANT IN REFRIGERATION CYCLE DEVICE
    5.
    发明公开
    USAGE AS REFRIGERANT IN REFRIGERATION CYCLE DEVICE 审中-公开

    公开(公告)号：EP4450894A1

    公开(公告)日：2024-10-23

    申请号：EP22907337.4

    申请日：2022-12-08

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： KAWAE, Arisa

    IPC分类号： F25B1/00 ,  C09K5/04 ,  C10M105/38 ,  C10M107/24 ,  F25B41/31 ,  C10N30/00 ,  C10N40/30

    摘要： There is provided a use as a refrigerant in a refrigeration cycle apparatus capable of suppressing decomposition of the refrigerant. In a use as a refrigerant in a refrigeration cycle apparatus (1), the refrigeration cycle apparatus having a refrigerant circuit (10) including a compressor (11), the compressor (11) including a compression element (21) that compresses the refrigerant, and an oil reservoir (37) that stores a refrigerating machine oil, the pressure of air inside the refrigerant circuit (10) being 667 Pa or less, the refrigerating machine oil containing 3.0 wt% or more and 5.0 wt% or less of an acid scavenger, the temperature of the refrigerating machine oil in the oil reservoir (37) being maintained at 120°C or lower, and the refrigerant being at least one of a mixed refrigerant containing 1,2-difluoroethylene and one or more types of hydrofluorocarbon, a mixed refrigerant containing 1,2-difluoroethylene and one or more types of hydrofluoroolefin, and a mixed refrigerant containing one or more types of hydrofluorocarbon and one or more types of hydrofluoroolefin.

    HEAT MEDIUM CIRCULATION DEVICE
    8.
    发明公开
    HEAT MEDIUM CIRCULATION DEVICE 审中-公开

    公开(公告)号：EP4443079A1

    公开(公告)日：2024-10-09

    申请号：EP22898203.9

    申请日：2022-09-09

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： AOYAMA, Shigeo ,  YAMAOKA, Yuki ,  MORIWAKI, Shunji ,  YOSHIDA, Jun ,  NAKATANI, Kazuhito

    IPC分类号： F25B49/02 ,  F24F1/22 ,  F25B1/00

    CPC分类号： F25B49/02 ,  F25B1/00 ,  F24F1/22

    摘要： A heat source-side circuit 20, an outdoor blower 26, a use-side circuit 30, and an electrical box 27 are provided, and the heat source-side circuit 20 is charged with flammable refrigerant, and the use-side circuit 30 is charged with heat medium, and the flammable refrigerant and the heat medium flow through the intermediate heat exchanger 23, and the heat medium pipe 31 includes a gas discharge device 50 which at least includes an air vent valve 51 or a pressure relief valve 52, and the gas discharge device 50 is housed in the space C, and the space C and the electrical box 27 are isolated from each other by at least one or more partition walls, and in an outdoor unit 11 consisting of the source-side circuit 20, the refrigerant/heat medium heat exchanger 23, and the air vent valve 51 and the pressure relief valve 52, which are part of the use side circuit 30, by reducing the risk of ignition in the high-risk electrical box 27 that is the ignition source, to provide a heat medium circulation device that further improves safety.

    REFRIGERATION SYSTEM AND REFRIGERATOR VAN HAVING THE SAME
    9.
    发明公开
    REFRIGERATION SYSTEM AND REFRIGERATOR VAN HAVING THE SAME 审中-公开

    公开(公告)号：EP4438975A1

    公开(公告)日：2024-10-02

    申请号：EP24164948.2

    申请日：2024-03-20

    申请人： Carrier Corporation

    发明人： XIE, Fei ,  TIAN, Hai ,  HE, Zheng

    IPC分类号： F25B1/00 ,  F25B5/02 ,  F25B40/02 ,  F25B41/40 ,  F25B43/00 ,  B60H1/32 ,  B60H1/00

    CPC分类号： F25B1/00 ,  F25B41/40 ,  F25B43/006 ,  F25B2400/1620130101 ,  F25B2400/2320130101 ,  F25B2400/2420130101 ,  B60H2001/0030720130101 ,  F25B40/02 ,  F25B5/02 ,  B60H1/32 ,  B60H1/3228

    摘要： The present invention proposes a refrigeration system (100). The refrigeration system (100) comprises a compressor (110), a condenser (120), a reservoir (130), a throttling device (140), and an evaporator (150) connected in sequence through pipes, as well as a cooling device (160) for cooling high-temperature components (10). The cooling device (160) has a heat exchange container (161) and a flow pipe (162), where the heat exchange container (161) maintains fluid communication with the reservoir (130) through the flow pipe (162), and the heat exchange container (161) is used to absorb heat of the high-temperature components (10). The heat exchange container (161) receives liquid refrigerant from the reservoir (130) through the flow pipe (162), the liquid refrigerant in the heat exchange container (161) generates vapor after heat exchange with heat absorbed from the high-temperature components (10), and the vapor enters the reservoir (130) through the flow pipe (162), thus forming a circulation loop. The present invention also proposes a refrigerator van configured with a refrigeration system. The cooling device in the refrigeration system (100) can cool the high-temperature components (10) in an efficient and energy-saving manner.

    AIR CONDITIONER
    10.
    发明公开
    AIR CONDITIONER 审中-公开

    公开(公告)号：EP4438974A1

    公开(公告)日：2024-10-02

    申请号：EP21965632.9

    申请日：2021-11-25

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： NAGATA, Ryuichi

    IPC分类号： F25B1/00

    CPC分类号： F25B1/00

    摘要： An air conditioner (100) includes a refrigerant circuit in which a non-azeotropic refrigerant mixture circulates. The refrigerant circuit includes a compressor (1), a four-way valve (2), a first heat exchanger (3), a first expansion valve (4), and a second heat exchanger (5). The four-way valve is configured to switch between a first state in which the non-azeotropic refrigerant mixture flows sequentially through the compressor, the first heat exchanger, the first expansion valve, and the second heat exchanger, and a second state in which the non-azeotropic refrigerant mixture flows sequentially through the compressor, the second heat exchanger, the first expansion valve, and the first heat exchanger. The refrigerant circuit further includes a third heat exchanger (10) provided to allow heat exchange between the non-azeotropic refrigerant mixture flowing between the first heat exchanger and the first expansion valve or the non-azeotropic refrigerant mixture flowing between the first expansion valve and the second heat exchanger, and the non-azeotropic refrigerant mixture flowing between the four-way valve and a suction port of the compressor. The non-azeotropic refrigerant mixture is a two-refrigerant mixture of R32 and R1234yf. A mass fraction of R32 in the non-azeotropic refrigerant mixture is 30% by mass or more.