Multi-connected air conditioning unit

• Main Authors: FENG WEIQING, SONG QIANG, LIU JIANGBIN, SONG NIANHUAN, MAO SHOUBO
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2024
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; RANGES; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; VENTILATING; WEAPONS

The invention relates to the technical field of air conditioning, and discloses a multi-connected air conditioning unit which comprises a refrigerant circulating system and a four-way valve group, the refrigerant circulating system comprises a compressor, an internal heat exchanger group and an external heat exchanger group, and the external heat exchanger group comprises a plurality of external heat exchangers; the four-way valve group comprises a plurality of external four-way valves, the external four-way valves are in one-to-one correspondence with the external heat exchangers, and the external four-way valves are used for communicating the compressor with the corresponding external heat exchangers; in the defrosting state, the multiple external heat exchangers communicate with one another, one external four-way valve communicates with an outlet of the compressor and the corresponding external heat exchanger, and the other external four-way valves communicate with the corresponding external heat exchanger