US-20260126195-A1 - AIR CONDITIONER, CONTROL METHOD, CONTROL DEVICE, AND STORAGE MEDIUM

Abstract

An air conditioner, a control method, a control device, and a storage medium. The air conditioner includes an indoor fan, a live component, and an air pressure detection assembly. The indoor fan is in airflow communication with the live component via a first air duct. The air pressure detection assembly is configured to acquire a first air pressure of the indoor fan and a second air pressure of the first air duct, and to control energization and de-energization of the live component based on a difference between the first air pressure and the second air pressure. By disposing an air pressure switch between the air pressure detection assembly and the live component, the air pressure switch can detect a pressure difference in the first air duct.

Inventors

• Wenrui JIN
• Mingsheng XIE
• Hongjie Luo
• Zhongyu PAN
• Kongxiang WU

Assignees

• GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD.
• MIDEA GROUP CO., LTD.

Dates

Publication Date

20260507

Application Date

20251105

Priority Date

20241105

Claims (13)

1. 1 . An air conditioner comprising: an indoor fan; a live component, wherein the indoor fan is in airflow communication with the live component via a first air duct; and an air pressure detection assembly configured to acquire a first air pressure of the indoor fan and a second air pressure of the first air duct, and to control energization and de-energization of the live component based on a difference between the first air pressure and the second air pressure.
2. 2 . The air conditioner according to claim 1 , wherein: the live component is controlled to be energized when the difference between the first air pressure and the second air pressure is greater than a predetermined value; and the live component is controlled to be de-energized when the difference between the first air pressure and the second air pressure is smaller than or equal to the predetermined value.
3. 3 . The air conditioner according to claim 2 , wherein the predetermined value ranges from 25 Pa to 60 Pa.
4. 4 . The air conditioner according to claim 1 , wherein the air pressure detection assembly comprises an air pressure switch disposed in the first air duct and electrically connected to the live component, the air pressure switch being configured to control the energization and de-energization of the live component based on the difference between the first air pressure and the second air pressure.
5. 5 . The air conditioner according to claim 4 , wherein the live component comprises at least one of an electric heating element and an alternating current contactor, the at least one of the electric heating element and the alternating current contactor being connected in series to the air pressure switch.
6. 6 . The air conditioner according to claim 5 , further comprising at least one gear controller, wherein the air pressure switch, the at least one gear controller, and the electric heating element are connected in series in sequence.
7. 7 . The air conditioner according to claim 6 , wherein the at least one gear controller is connected to the alternating current contactor to jointly form a connection terminal, and wherein the air pressure switch has an end connected to the connection terminal and another end connected to a power supply.
8. 8 . The air conditioner according to claim 1 , further comprising: a housing, the first air duct and a second air duct spaced apart from the first air duct being formed in the housing therein; and an outdoor fan disposed in the housing and in airflow communication with the second air duct.
9. 9 . A control method for an air conditioner, wherein the air conditioner comprises an indoor fan, a live component, and an air pressure detection assembly, the indoor fan being in airflow communication with the live component via a first air duct, and an air pressure switch being disposed in the first air duct and electrically connected to the live component, and wherein the control method comprises: controlling, based on a start command, the live component to be energized; controlling the air pressure detection assembly to acquire a first air pressure of the indoor fan and a second air pressure of the first air duct; and controlling, based on a difference between the first air pressure and the second air pressure, the air pressure detection assembly to be turned on or off, to energize or de-energize the live component.
10. 10 . The control method according to claim 9 , wherein the controlling, based on the difference between the first air pressure and the second air pressure, the air pressure detection assembly to be turned on or off, to energize or de-energize the live component comprises: controlling, when the difference between the first air pressure and the second air pressure is smaller than or equal to a predetermined value, the air pressure detection assembly to be turned off to de-energize the live component; and controlling, when the difference between the first air pressure and the second air pressure is greater than the predetermined value, the air pressure detection assembly to be turned on to energize the live component.
11. 11 . A control device comprising: a processor; and at least one memory having a computer program stored therein, wherein the computer program, when executed by the processor, causes the processor to implement the steps of the control method according to claim 9 .
12. 12 . An air conditioner comprising the control device according to claim 11 .
13. 13 . A computer-readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, causes the processor to implement the steps of the control method according to claim 9 .

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims priority to Chinese Patent Application No. 202411571149.5, filed with China National Intellectual Property Administration on Nov. 5, 2024 and entitled “AIR CONDITIONER, CONTROL METHOD, CONTROL DEVICE, AND STORAGE MEDIUM”, the entire contents of which are incorporated herein by reference for all purposes. No new matter has been introduced. FIELD The present disclosure relates to the field of air conditioner technologies, and more particularly, to an air conditioner, a control method, a control device, and a computer-readable storage medium. BACKGROUND In the related art, an air conditioner is charged with a flammable refrigerant. However, according to safety requirements for an air conditioner, when refrigerant leaks occur on an indoor side of the air conditioner, an electric auxiliary heating temperature of the air conditioner may not exceed 700° C., and a concentration of the flammable refrigerant surrounding a potential ignition electrical component needs to be guaranteed to be below 75% of a lower flammability limit. Currently, when the air conditioner is in normal use, since an indoor fan is turned on, enough air flow can pass through an air duct to take away heat of an electric auxiliary heater, enabling a surface temperature of the air conditioner to be continuously lower than 700° C. Also, the refrigerant can be carried away to make the concentration of the refrigerant surrounding the potential ignition electrical component be continuously below a desired concentration value. However, when the indoor fan malfunctions, the leaked refrigerant cannot be taken away, failing to meet the safety requirements for the air conditioner, which may lead to fire or explosion of the air conditioner. SUMMARY An air conditioner, a control method, a control device, and a computer-readable storage medium according to an embodiment of the present disclosure are capable of solving the problem that, when an indoor fan of the air conditioner malfunctions, an electric arc generated by an energized component may ignite a leaked refrigerant, leading to an explosion. The air conditioner according to an embodiment of the present disclosure includes an indoor fan; a live component, wherein the indoor fan is in airflow communication with the live component via a first air duct; and an air pressure detection assembly configured to acquire a first air pressure of the indoor fan and a second air pressure of the first air duct, and to control energization and de-energization of the live component based on a difference between the first air pressure and the second air pressure. In this way, by disposing the air pressure switch between the air pressure detection assembly and the live component, the air pressure switch can detect a pressure difference in the first air duct. Therefore, when the pressure difference drops, it indicates that the indoor fan malfunctions, and an airflow blown out by the indoor fan cannot cool the live component and take away the leaked refrigerant. In this case, the live component is controlled to be de-energized by the air pressure switch, thereby preventing the live component from igniting the refrigerant due to energization and sparking, which would result in an explosion. In some embodiments, the live component is controlled to be energized when the difference between the first air pressure and the second air pressure is greater than a predetermined value. The live component is controlled to be de-energized when the difference between the first air pressure and the second air pressure is smaller than or equal to the predetermined value. In this way, by comparing the difference between the first air pressure and the second air pressure with the predetermined value, based on a comparison result, whether the indoor fan malfunctions can be determined, and the live component can be quickly controlled to be de-energized in the event of malfunction. Compared with the related art, in which the live component is controlled to be de-energized by a refrigerant sensor and a corresponding supporting hardware, this approach can reduce a cost and improve a de-energization speed. In some embodiments, the predetermined value ranges from 25 Pa to 60 Pa. Therefore, by setting the predetermined value to range from 25 Pa to 60 Pa, whether the indoor fan malfunctions can be promptly and accurately reflected. When setting the predetermined value to be smaller than 25 Pa, the predetermined value is too small to detect a fault of the indoor fan in time, resulting in a risk of explosion due to a failure to promptly de-energize the live component. When setting the predetermined value to greater than 60 Pa, the predetermined value is too large, which is prone to cause misjudgment during normal operation of the indoor fan, leading to de-energization of the live component. Therefore, normal use of the air conditioner can be affected. In some embodiments, the air pressure d