Refrigerant leakage control method and device, air conditioner, and computer-readable storage medium

A refrigerant leakage control method comprising:

• obtaining a refrigerant leakage concentration of an indoor unit of an air conditioner;
• and
• in response to the refrigerant leakage concentration of the indoor unit being greater than or equal to a predetermined leakage protection threshold:
• controlling an indoor fan of the indoor unit to operate at a predetermined wind speed level;
• and
• controlling an indoor-unit universal conversion board of the air conditioner to output a compressor shutdown signal to an outdoor unit of the air conditioner through a communication port of the indoor-unit universal conversion board, to cause a compressor of the outdoor unit to shut down.

A control device comprising:

• a memory storing a computer program;
• and
• a processor configured to execute the computer program to:
• obtain a refrigerant leakage concentration of an indoor unit of an air conditioner;
• and
• in response to the refrigerant leakage concentration of the indoor unit being greater than or equal to a predetermined leakage protection threshold:
• control an indoor fan of the indoor unit to operate at a predetermined wind speed level;
• and
• control an indoor-unit universal conversion board of the air conditioner to output a compressor shutdown signal to an outdoor unit of the air conditioner through a communication port of the indoor-unit universal conversion board, to cause a compressor of the outdoor unit to shut down.

An air conditioner comprising:

• an indoor unit including an indoor fan;
• an outdoor unit including an outdoor fan and a compressor;
• a wired controller;
• an indoor-unit universal conversion board in a communication connection with the indoor unit and the wired controller, and including a communication port electrically connected to the compressor;
• a refrigerant sensor at the indoor unit;
• and
• a control device electrically connected to the indoor-unit universal conversion board, the outdoor fan, the compressor, the indoor fan, and the refrigerant sensor, and configured to:
• obtain a refrigerant leakage concentration of the indoor unit;
• and
• in response to the refrigerant leakage concentration of the indoor unit being greater than or equal to a predetermined leakage protection threshold:
• control the indoor fan to operate at a predetermined wind speed level;
• and
• control the indoor-unit universal conversion board to output a compressor shutdown signal to the outdoor unit through the communication port, to cause the compressor to shut down.