Multi-connected air conditioner control method and device, electronic equipment and readable storage medium

By switching the indoor unit on and off and connecting it to the refrigerant pipe in the heating mode of a multi-split air conditioner, and ensuring that the terminal indoor unit performs refrigerant recovery, the problem of heat loss caused by refrigerant recovery is solved, and effective refrigerant circulation and heat saving are achieved.

CN116878131BActive Publication Date: 2026-06-12GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Filing Date
2023-08-16
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

In the heating mode of a multi-split air conditioner, the refrigerant recovery of the indoor unit when it is turned off results in excessive heat loss.

⚗Method used

In air conditioning heating mode, the connection between the indoor unit and the refrigerant pipe is disconnected, the terminal indoor unit is identified, and refrigerant recovery is performed on it. The refrigerant circulation and recovery are achieved by controlling valves and throttling components.

🎯Benefits of technology

This avoids heat loss caused by refrigerant entering the indoor unit, and also prevents refrigerant accumulation, ensuring effective refrigerant circulation in the system and reducing overall heat loss.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a multi-connected air conditioner control method and device, electronic equipment and a readable storage medium. The method comprises the following steps: when the air conditioner running mode is a heating mode, determining a shutdown indoor unit with a shutdown running state in the indoor unit, and controlling the shutdown indoor unit to be disconnected with a refrigerant pipeline; determining a terminal indoor unit in the shutdown indoor unit; and performing a refrigerant recovery operation on the pipeline corresponding to the terminal indoor unit. By disconnecting the shutdown indoor unit with the refrigerant pipeline, the refrigerant can be prevented from entering the indoor unit to cause heat loss; meanwhile, by recovering the refrigerant in the terminal indoor unit, the refrigerant can be prevented from accumulating in the refrigerant pipeline, and the refrigerant recovery in the terminal indoor unit can drive the refrigerant in the refrigerant pipeline of the non-terminal indoor unit to circulate to a certain extent, so that the refrigerant recovery is ensured, and excessive heat loss of the system caused by the refrigerant recovery of too many indoor units is avoided.
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