MULTI-SPLIT AIR CONDITIONER

WIPO Patent Application WO/2023/092889

A1

Provided is a multi-split air conditioner, comprising a refrigerant charging device, a storage unit, and a processing unit. The refrigerant charging device is configured to charge refrigerant into a heat exchange pipeline; the internal refrigerant volume VO of an outdoor unit and the internal refrigerant volume VI of each indoor unit are stored in the storage unit; the processing unit is configured to read data VO and VI stored in the storage unit, calculate a ratio VI/VO of VO and VI, and determine a target subcooling degree SCO at an outlet of an outdoor heat exchanger (4) according to the ratio VI/VO; during a refrigerant charging process, the multi-split air conditioner monitors a supercooling degree SC at the outlet of the outdoor heat exchanger (4) in real time, and when SC ≥ SCO, the refrigerant charging device stops refrigerant charging. The present disclosure ensures that the refrigerant charging amount is appropriate, thereby avoiding the phenomenon of too little or too much refrigerant.

WO/2015/075199	AIR CONDITIONING SYSTEM, PERIPHERAL AIR-CONDITIONING UNIT THEREOF AND WATER PIPELINE UPGRADING METHOD FOR HEATING PURPOSES
JP6541806	Indoor unit of air conditioner
JP4815452	Air conditioner

XIA XINGXIANG (CN)
ZHANG HENG (CN)
MENG JIANJUN (CN)
SHI LEI (CN)

PCT/CN2022/079619

June 01, 2023

March 07, 2022

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QINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD (CN)

F24F1/0063; F24F11/64; F24F13/30; F25B45/00; F24F140/20

CN113883690A	2022-01-04
CN113465240A	2021-10-01
CN112797680A	2021-05-14
CN107726534A	2018-02-23
CN105004116A	2015-10-28
JP2009115340A	2009-05-28
CN113465131A	2021-10-01
JP2002054836A	2002-02-20

BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)

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