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    INTEGRATED HEAT PUMP SYSTEM AND CONTROL METHOD THEREFOR
    41.
    发明公开
    INTEGRATED HEAT PUMP SYSTEM AND CONTROL METHOD THEREFOR 审中-公开

    公开(公告)号：EP4040072A1

    公开(公告)日：2022-08-10

    申请号：EP22161182.5

    申请日：2020-12-15

    申请人： Carrier Corporation

    发明人： SHEN, Guangyu ,  LIU, Hongsheng ,  WANG, Jinxiang ,  ZHANG, Shuguang ,  LU, Shuang ,  ZHAI, Hui

    IPC分类号： F25B5/02 ,  F25B6/02 ,  F25B13/00 ,  F25B40/00 ,  F25B41/26 ,  F25B49/02

    摘要： The present application provides an integrated heat pump system and a control method therefor. The integrated heat pump system (100) comprises: an air-conditioning indoor unit (110) having a first indoor heat exchanger set (111a, 111b) and a first throttle valve assembly (112a, 112b); a display cabinet indoor unit (120) having a second indoor heat exchanger set (121a, 121b) and a second throttle valve assembly (122a, 122b); and an outdoor unit (130) connected to the air-conditioning indoor unit and the display cabinet indoor unit through pipelines. The outdoor unit comprises: at least two compressors (133a, 133b); an outdoor heat exchanger set (131); a third throttle valve assembly (132); and a mode switch valve assembly configured to switch at least one of the first indoor heat exchanger set and the outdoor heat exchanger set to be connected to the downstream of at least two compressors.

    REFRIGERATOR AND DRIVING METHOD THEREOF
    47.
    发明公开
    REFRIGERATOR AND DRIVING METHOD THEREOF 审中-公开

    公开(公告)号：EP3998438A1

    公开(公告)日：2022-05-18

    申请号：EP21218323.0

    申请日：2011-07-27

    申请人： LG Electronics Inc.

    发明人： CHAE, Sunam ,  HEO, Juyeong ,  JHEE, Sung ,  JEON, Chanho

    IPC分类号： F25B1/10 ,  F25B5/02 ,  F25B40/00 ,  F25B31/00

    摘要： A refrigerator and a driving method thereof are disclosed. A primary compressor(11) and a secondary compressor(12) can form independent cycles together with corresponding evaporators(14,15) so as to reduce unnecessary power consumption. Also, a backflow prevention valve(20) is installed between the primary and secondary compressors to prevent an increase in pressure of the secondary compressor, or an auxiliary heat exchanger(30) is installed at the outlet side of a second evaporator(15) with high temperature to allow heat exchange of an inlet side pipe(L1) of a first evaporator with low temperature so as to shift a load of a freezing chamber into a relatively large refrigerating chamber, thereby improving efficiency of the refrigerator. In addition, an oil separator(120,130) or an oil collection pipe(121,131) is installed at the outlet sides of the compressors or an oil balancing pipe(221) and an oil balancing valve(222) are installed between the compressors, so as to uniformly maintain an oil amount between the compressors.

    COOLING SYSTEM WITH FLEXIBLE EVAPORATING TEMPERATURE
    48.
    发明公开
    COOLING SYSTEM WITH FLEXIBLE EVAPORATING TEMPERATURE 审中-公开

    公开(公告)号：EP3957930A3

    公开(公告)日：2022-05-11

    申请号：EP21186716.3

    申请日：2021-07-20

    申请人： Heatcraft Refrigeration Products LLC

    发明人： ZHA, Shitong

    IPC分类号： F25B5/02 ,  F25B43/00 ,  F25B40/00 ,  F25B49/02 ,  F25B41/20 ,  F25B41/00 ,  F25B9/00

    摘要： A cooling system (200) implements various processes to improve efficiency in high ambient temperatures. First, the system can flood one or more low side heat exchangers (108A, 108B) in the system (200). Second, the system can direct a portion of vapor refrigerant (220) from a low side heat exchanger (108A) to a flash tank (104) rather than to a compressor (110). Third, the system (200) can transfer heat from refrigerant at a compressor suction to refrigerant at the discharge of a high side heat exchanger (102).