US 12,410,927 B2
Heat pump system, control method and apparatus thereof, air conditioning device and storage medium
Zhifeng Yang, Guangdong (CN); Wenchao You, Guangdong (CN); and Yongfu Dai, Guangdong (CN)
Assigned to Gree Electric Appliances, Inc. of Zhuhai, Guangdong (CN)
Appl. No. 18/015,571
Filed by Gree Electric Appliances, Inc. of Zhuhai, Guangdong (CN)
PCT Filed Nov. 3, 2021, PCT No. PCT/CN2021/128424
§ 371(c)(1), (2) Date Jan. 11, 2023,
PCT Pub. No. WO2022/105605, PCT Pub. Date May 27, 2022.
Claims priority of application No. 202011297044 (CN), filed on Nov. 18, 2020.
Prior Publication US 2023/0250982 A1, Aug. 10, 2023
Int. Cl. F24F 11/41 (2018.01); F24F 11/65 (2018.01); F24F 11/84 (2018.01); F25B 30/00 (2006.01); F25B 41/20 (2021.01)
CPC F24F 11/41 (2018.01) [F24F 11/65 (2018.01); F24F 11/84 (2018.01); F25B 30/00 (2013.01); F25B 41/20 (2021.01); F25B 2313/02742 (2013.01); F25B 2313/02791 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A heat pump system, comprising:
an indoor unit, an outdoor unit and a valve assembly; the indoor unit comprising: a compressor, a first control valve a first indoor heat exchanger and a second indoor heat exchanger;
the valve assembly being respectively connected with an exhaust outlet and a suction inlet of the compressor, a first end of the second indoor heat exchanger, and a first end of the outdoor unit, and a second end of the second indoor heat exchanger being connected with a second end of the outdoor unit; the valve assembly being configured to control a flow direction and on-off of refrigerant to form a refrigerant loop; and
the first indoor heat exchanger having a first end connected with the exhaust outlet of the compressor and a second end connected with a second connection pipeline between the second end of the second indoor heat exchanger and the second end of the outdoor unit through a first connection pipeline, wherein
the first control valve is provided in a pipeline between the first end of the first indoor heat exchanger and the exhaust outlet of the compressor; wherein:
the outdoor unit comprises; a first outdoor heat exchanger and a second outdoor heat exchanger; the valve assembly is respectively connected with the first end of the first outdoor heat exchanger and the first end of the second outdoor heat exchanger; the second end of the first outdoor heat exchanger and the second end of the second outdoor heat exchanger are connected with the second end of the second indoor heat exchanger through the second connection pipeline;
the valve assembly comprises: a first four-way valve and a second four-way valve; a first port (D1) of the first four-way valve and a first port (D2) of the second four-way valve are respectively connected with the exhaust outlet of the compressor, and a second port (E1) of the first four-way valve and a second port (E2) of the second four-way valve are respectively connected with the first end of the second indoor heat exchanger; a third port (C1) of the first four-way valve is connected with the first end of the second outdoor heat exchanger, and a third port (C2) of the second four-way valve is connected with the first end of the first outdoor heat exchanger; and a fourth port (S1) of the first four-way valve and a fourth port (S2) of the second four-way valve are connected with the suction inlet of the compressor.