Air conditioner, control method, control device and storage medium

Abstract

The invention discloses an air conditioner, a control method, a control device and a storage medium. The air conditioner comprises an indoor fan, a live part and an air pressure detection assembly, wherein the indoor fan communicates with the live part through a first air duct; the air pressure detection assembly is configured to collect the first air pressure of the indoor fan and the second air pressure of the first air duct and control the electrification part to be powered on and powered off according to the difference value between the first air pressure and the second air pressure. The air pressure switch is arranged between the air pressure detection assembly and the live part, so that the air pressure switch can detect the pressure difference in the first air duct, when it is detected that the pressure difference is reduced, it is indicated that the indoor fan breaks down, airflow blown out by the indoor fan cannot cool the live equipment or take away leaked refrigerants, and the indoor fan is prevented from breaking down. At the moment, the wind pressure switch controls the live part to be powered off, so that the live part can be prevented from exploding due to ignition of refrigerants caused by power-on ignition.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and more specifically, to an air conditioner, a control method, a control device, and a computer-readable storage medium. Background Technology

[0002] In related technologies, air conditioners are equipped with flammable refrigerant. However, according to the safety regulations for air conditioners, when refrigerant leaks on the indoor side of the air conditioner, the temperature of the air conditioner's electric auxiliary heating cannot exceed 700°C, and the concentration of flammable refrigerant around the potentially igniting electrical components of the air conditioner must be below the lower ignition limit concentration of 75%.

[0003] Currently, when an air conditioner is in normal use, the indoor fan ensures sufficient airflow through the duct to remove heat from the electric auxiliary heater, keeping its surface temperature below 700°C. It also removes refrigerant, keeping the refrigerant concentration around potentially ignition-prone electrical components below the required level. However, if the indoor fan malfunctions, it cannot remove leaked refrigerant, thus failing to meet the air conditioner's safety regulations and potentially leading to a fire or explosion. Summary of the Invention

[0004] The present invention provides an air conditioner, a control method, a control device, and a computer-readable storage medium that can solve the problem that when the indoor fan of an air conditioner malfunctions, the electric arc generated by the live parts can ignite the leaked refrigerant, causing an explosion.

[0005] An air conditioner provided by an embodiment of the present invention includes an indoor fan, a live component, and a wind pressure detection component. The indoor fan is connected to the live component through a first air duct. The wind pressure detection component is configured to collect a first wind pressure of the indoor fan and a second wind pressure of the first air duct, and control the live component to be energized and de-energized based on the difference between the first wind pressure and the second wind pressure.

[0006] Thus, by setting a pressure switch between the pressure detection component and the live parts, the pressure switch can detect the pressure difference in the first air duct. When the pressure difference drops, it indicates that the indoor fan is malfunctioning and the airflow blown by the indoor fan cannot cool the live parts or carry away the leaked refrigerant. At this time, the pressure switch can be used to cut off the power to the live parts, thereby preventing the live parts from igniting the refrigerant and causing an explosion due to electrical sparking.

[0007] In some implementations, when the difference between the first wind pressure and the second wind pressure is greater than a preset value, the energized component is controlled to be energized; when the difference between the first wind pressure and the second wind pressure is less than or equal to the preset value, the energized component is controlled to be de-energized.

[0008] In this way, by comparing the difference between the first and second air pressures with a preset value, it is possible to determine whether the indoor fan has malfunctioned based on the comparison result, and quickly control the power-off of the live parts in the event of a malfunction. Compared with the existing technology that uses refrigerant sensors and corresponding hardware to control the power-off of live parts, this method can save costs and improve the power-off rate.

[0009] In some implementations, the preset value is between 25 Pa and 60 Pa.

[0010] Therefore, by setting the preset value between 25 Pa and 60 Pa, it is possible to promptly and accurately detect whether the indoor fan has malfunctioned. Setting the preset value below 25 Pa is too low, making it impossible to detect the indoor fan malfunction in time, thus failing to disconnect the power to the live components and potentially causing an explosion. Conversely, setting the preset value below 60 Pa is too high, potentially causing misjudgment during normal operation of the indoor fan, leading to power disconnection of the live components and affecting the normal use of the air conditioner.

[0011] In some embodiments, the wind pressure detection component includes a wind pressure switch disposed in the first air duct and electrically connected to the energized component. The wind pressure switch is configured to control the energization and de-energization of the energized component based on the difference between the first wind pressure and the second wind pressure.

[0012] Thus, by using the wind pressure switch as a wind pressure detection component to detect wind pressure and control the energization and de-energization of live parts, the mechanical wind pressure switch does not require other controllers, saving time in sending and receiving control information, improving the energization or de-energization rate of live parts and reducing costs.

[0013] In some embodiments, the energized component includes at least one of a heating element and an AC contactor, wherein the heating element and the AC contactor are connected in series with the wind pressure switch.

[0014] Thus, by connecting at least one of the heating element and the AC contactor in series with the air pressure switch, the air pressure switch can control at least one of the heating element and the AC contactor, thereby preventing an explosion caused by an electric arc generated by at least one of the heating element and the AC contactor when refrigerant leaks.

[0015] In some embodiments, the air conditioner includes at least one speed control, and the pressure switch, the speed control, and the heating element are connected in series.

[0016] In this way, by connecting the air pressure switch, gear position controller and heating element in series, the air pressure switch can control the power supply to the gear position controller and heating element, thus preventing an explosion caused by the gear position controller and heating element being powered on when refrigerant leaks.

[0017] In some embodiments, the at least one gear position controller and the AC contactor are connected to form a connection terminal, which is connected to one end of the air pressure switch, and the other end of the air pressure switch is connected to a power source.

[0018] Thus, by connecting at least one gear position controller and an AC contactor to form a connection terminal connected in series with the air pressure switch, the air pressure switch can control the on / off state of the connection terminal, thereby improving the de-energizing efficiency of the gear position controller and the AC contactor.

[0019] In some embodiments, the air conditioner includes a housing and an outdoor fan, the housing having a first air duct and a second air duct separated from each other, and the outdoor fan being disposed within the housing and communicating with the second air duct.

[0020] In this way, by installing an outdoor fan in the air conditioner, the air conditioner can exchange air with the indoor unit through the second air duct and the outdoor fan. Furthermore, the outdoor fan and the indoor fan are integrated into the same casing, which saves space.

[0021] This invention provides a control method for an air conditioner, the air conditioner including an indoor fan, a live component, and a wind pressure detection component. The indoor fan is connected to the live component through a first air duct, and a wind pressure switch is disposed in the first air duct and electrically connected to the live component. The control method includes controlling the live component to be energized according to an activation command; controlling the wind pressure detection component to collect a first wind pressure of the indoor fan and a second wind pressure of the first air duct; and controlling the wind pressure detection component to be switched on and off according to the difference between the first wind pressure and the second wind pressure to energize and de-energize the live component.

[0022] In some embodiments, controlling the wind pressure detection component to turn on and off based on the difference between the first wind pressure and the second wind pressure to energize and de-energize the energized component includes controlling the wind pressure detection component to turn off to de-energize the energized component when the difference between the first wind pressure and the second wind pressure is less than or equal to a preset value; and controlling the wind pressure detection component to turn on to energize the energized component when the difference between the first wind pressure and the second wind pressure is greater than a preset value.

[0023] In this way, by comparing the difference between the first and second air pressures with a preset value, it is possible to determine whether the indoor fan has malfunctioned based on the comparison result, and quickly control the power-off of the live parts in the event of a malfunction. Compared with the existing technology that uses refrigerant sensors and corresponding hardware to control the power-off of live parts, this method can save costs and improve the power-off rate.

[0024] The control device according to the embodiments of the present invention includes a processor and a memory; the memory stores a computer program, which, when executed by the processor, implements the steps of the control method described in any of the above embodiments.

[0025] The air conditioner according to the embodiments of the present invention includes the control device described in the above embodiments.

[0026] The computer-readable storage medium of the present invention stores a computer program thereon, which, when executed by a processor, implements the steps of the control method described in any of the above embodiments.

[0027] Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of the invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is a structural schematic diagram of an air conditioner according to certain embodiments of the present invention;

[0030] Figure 2 This is a schematic diagram of the connection between the wind pressure detection component and the connection end in some embodiments of the present invention;

[0031] Figure 3 This is another connection diagram of the wind pressure detection component and the connection end in some embodiments of the present invention;

[0032] Figure 4 This is another connection diagram of the wind pressure detection component and the connection end in some embodiments of the present invention;

[0033] Figure 5 This is another structural schematic diagram of an air conditioner according to certain embodiments of the present invention;

[0034] Figure 6 This is a flowchart illustrating the control method of some embodiments of the present invention;

[0035] Figure 7This is a schematic diagram of the structure of the control device according to some embodiments of the present invention;

[0036] Figure 8 This is a flowchart illustrating the control method of some embodiments of the present invention;

[0037] Figure 9 This is a schematic diagram illustrating the connection state of a computer-readable storage medium and a processor according to certain embodiments of the present invention.

[0038] Explanation of icon numbers:

[0039] 100. Air conditioner; 10. Indoor fan; 20. Live part; 21. Heating element; 22. AC contactor; 30. Wind pressure detection assembly; 31. Wind pressure switch; 40. First air duct; 50. Gear controller; 60. Connection terminal; 70. Power supply; 80. Housing; 90. Outdoor fan; 91. Second air duct; 200. Control device; 210. Processor; 220. Memory; 221. Computer program; 300. Computer-readable storage medium. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention.

[0041] Please see Figure 1 An air conditioner 100 provided by an embodiment of the present invention includes an indoor fan 10, a live component 20, and a wind pressure detection component 30. The indoor fan 10 is connected to the live component 20 through a first air duct 40. The wind pressure detection component 30 is configured to collect the first wind pressure of the indoor fan 10 and the second wind pressure of the first air duct 40, and control the live component 20 to be energized and de-energized based on the difference between the first wind pressure and the second wind pressure.

[0042] Thus, by setting a pressure switch 31 between the pressure detection component 30 and the live component 20, the pressure switch 31 can detect the pressure difference in the first air duct 40. When the pressure difference drops, it indicates that the indoor fan 10 has malfunctioned and the airflow blown by the indoor fan 10 cannot cool the live equipment or carry away the leaked refrigerant. At this time, the pressure switch 31 controls the live component 20 to cut off the power, thereby preventing the live component 20 from igniting the refrigerant and causing an explosion due to electrical sparking.

[0043] Air conditioner 100 is a device used to directly supply treated air to an enclosed room, space, or area. Air conditioner 100 can provide cooling, heating, dehumidification, and air purification functions to the indoor environment. Air conditioner 100 completes the cooling and heating processes through changes in the phase state, temperature, and pressure of the refrigerant within the air conditioner 100.

[0044] However, refrigerant leakage may occur during the operation of the air conditioner 100. When the leaked refrigerant reaches a certain concentration and comes into contact with the live parts 20 inside the air conditioner 100, it can easily cause an electric arc generated by the refrigerant contacting the live parts 20, igniting the refrigerant and causing an explosion, or the high temperature of the live parts 20 can ignite the refrigerant and cause an explosion. Therefore, the fan in the air conditioner 100 is usually designed to blow air onto the live parts 20, with the airflow from the fan carrying away the leaked refrigerant and cooling the high temperature of the live parts 20. However, if the fan malfunctions, it cannot carry away the leaked refrigerant in time, which can easily cause an explosion. Therefore, it is necessary to disconnect the power to the live parts 20 when the fan malfunctions to prevent the live parts 20 from igniting the refrigerant and causing an explosion.

[0045] Specifically, the air conditioner 100 includes an indoor fan 10, an electrical component 20, and a wind pressure detection assembly 30. The indoor fan 10 includes a motor and a fan wheel. The motor controls the fan wheel's rotation to generate airflow, enabling the indoor fan 10 to achieve heat exchange within the room. For example, when the air conditioner 100 is cooling, the indoor fan 10 blows the cold air around the evaporator in the air conditioner 100 into the room, achieving forced convection and lowering the indoor temperature. When the air conditioner 100 is heating, it exhausts the hot air from the room to the outside through ducts, while simultaneously blowing the hot air around the condenser in the air conditioner 100 into the room, raising the indoor temperature.

[0046] The energized component 20 is a part of the air conditioner 100 that requires a power supply 70 to operate. Through the coordinated operation of the energized components 20, the normal operation and efficient functioning of the air conditioner 100 can be ensured. For example, the energized component 20 can be a compressor, sensor, controller, etc. The compressor compresses the low-temperature, low-pressure refrigerant into a high-temperature, high-pressure refrigerant, providing power for air conditioning. The sensor measures air temperature and humidity and transmits the data to the controller. The controller uses the sensor data to control the air conditioner's cooling, heating, and dehumidification functions, thereby achieving intelligent control of the indoor temperature. Furthermore, the indoor fan 10 can be connected to the energized component 20 through the first air duct 40, allowing the airflow generated by the indoor fan 10 to reach the energized component 20 through the first air duct 40.

[0047] The wind pressure detection component 30 can be used to detect the airflow pressure generated by the indoor fan 10 and control the energization and de-energization of the energized component 20 based on the pressure difference. For example, by placing the wind pressure detection component 30 in the first air duct 40, when the indoor fan 10 is working, the wind pressure detection component 30 can collect the first wind pressure at the impeller of the indoor fan 10 and the second wind pressure in the air duct, and by calculating the difference between the first wind pressure and the second wind pressure, and comparing the difference with a preset value, the operating state of the indoor fan 10 can be determined, thereby controlling the energization and de-energization of the energized component 20 based on the operating state of the indoor fan 10.

[0048] In some embodiments, when the difference between the first wind pressure and the second wind pressure is greater than a preset value, the energized component 20 is energized; when the difference between the first wind pressure and the second wind pressure is less than or equal to the preset value, the energized component 20 is de-energized.

[0049] In this way, by comparing the difference between the first and second air pressures with a preset value, it is possible to determine whether the indoor fan 10 has malfunctioned based on the comparison result, and quickly control the power-on component 20 to disconnect in the event of a malfunction. Compared with the prior art, which uses a refrigerant sensor and corresponding hardware to control the power-on component 20 to disconnect, this method can save costs and improve the power disconnection rate.

[0050] Specifically, when the wind pressure detection component 30 collects the first wind pressure of the indoor fan 10 and the second wind pressure of the first air duct 40, the difference between the first and second wind pressures can be calculated. Then, the difference is compared with a preset value set in the wind pressure detection component 30, so that the wind pressure detection component 30 can determine the magnitude of the difference and the preset value, and control the energization and de-energization of the live parts 20 according to the magnitude of the difference and the preset value.

[0051] In some implementations, the preset value is between 25 Pa and 60 Pa. For example, the preset value can be any value between 25 Pa, 30 Pa, 35 Pa, 40 Pa, 45 Pa, 50 Pa, 55 Pa, 60 Pa, or between 25 Pa and 60 Pa. Thus, by setting the preset value between 25 Pa and 60 Pa, it is possible to promptly and accurately detect whether the indoor fan 10 has malfunctioned. If the preset value is set to less than 25 Pa, the preset value is too small, making it impossible to detect the malfunction of the indoor fan 10 in time, thus failing to disconnect the power supply to the energized component 20 in time, which could easily lead to an explosion. If the preset value is set to less than 60 Pa, the preset value is too large, which could easily cause misjudgment during the normal operation of the indoor fan 10, leading to the de-energization of the energized component 20, thereby affecting the normal use of the air conditioner 100.

[0052] When the difference between the first and second air pressures is greater than a preset value, it indicates that the indoor fan 10 is in normal working condition. The indoor fan 10 can normally deliver air to the energized component 20 to remove the leaked refrigerant, so that the air pressure detection component 30 can control the energized component 20 to be powered on, so that the air conditioner 100 can work normally.

[0053] If the difference between the first and second air pressures is less than or equal to a preset value, it indicates that the indoor fan 10 is in an abnormal operating state, such as a malfunction that causes the indoor fan 10 to stop generating airflow or a blockage in the first air duct 40. In this case, the indoor fan 10 cannot deliver air to the energized component 20 to remove the leaked refrigerant. Therefore, the air pressure detection component 30 can control the energized component 20 to disconnect from the power supply, preventing the energized component 20 from generating an electric arc and high temperature, thereby preventing the energized component 20 from igniting the leaked refrigerant.

[0054] Please see Figure 1 In some embodiments, the wind pressure detection assembly 30 includes a wind pressure switch 31, which is disposed in the first air duct 40 and electrically connected to the energized component 20. The wind pressure switch 31 is configured to control the energization and de-energization of the energized component 20 based on the difference between the first wind pressure and the second wind pressure.

[0055] Thus, by using the wind pressure switch 31 as the wind pressure detection component 30 to detect wind pressure and control the energization and de-energization of the live parts 20, the mechanical wind pressure switch 31 does not require other controllers for control, saving the time of sending and receiving control information, and can improve the energization or de-energization rate of the live parts 20 and reduce costs.

[0056] Specifically, the wind pressure detection assembly 30 includes a wind pressure switch 31, which is a mechanical component for detecting wind pressure. The wind pressure switch 31 includes a detection port, a differential pressure, a diaphragm, a microswitch, a positive pressure chamber, and a negative pressure chamber. The wind pressure switch 31 utilizes the static pressure of the gas to actuate the microswitch, thereby controlling the flow of current. The wind pressure switch 31 has two detection ports: a positive pressure detection port and a negative pressure detection port, which also divide its cavity into a positive pressure chamber and a negative pressure chamber. A diaphragm isolates the negative pressure zone of the indoor fan 10 from the negative pressure detection port of the wind pressure switch 31. When the indoor fan 10 rotates, a negative pressure is created in the negative pressure chamber through the wind pressure duct. At this time, the diaphragm moves and triggers the microswitch, thus achieving the on / off function.

[0057] The wind pressure switch 31 can be installed inside the first air duct 40, and the micro switch inside the wind pressure switch 31 can be electrically connected to the energized component 20. Thus, the wind pressure switch 31 can push the micro switch to move according to the difference between the first wind pressure and the second wind pressure to control the energization and de-energization of the energized component 20.

[0058] Please see Figures 1 to 4In some embodiments, the energized component 20 includes at least one of a heating element 21 and an AC contactor 22, and at least one of the heating element 21 and the AC contactor 22 is connected in series with the wind pressure switch 31.

[0059] Thus, by connecting at least one of the heating element 21 and the AC contactor 22 in series with the air pressure switch 31, the air pressure switch 31 can control at least one of the heating element 21 and the AC contactor 22, thereby preventing an explosion caused by an electric arc generated by at least one of the heating element 21 and the AC contactor 22 when the refrigerant leaks.

[0060] Specifically, in one embodiment, the energized component 20 includes an electric heating element 21 and an AC contactor 22; in another embodiment, the energized component 20 includes an AC contactor 22; in other embodiments, the energized component 20 may include, but is not limited to, the electric heating element 21 and the AC contactor 22. The electric heating element 21 may be an auxiliary electric heater, capable of heating the airflow delivered into the room when the air conditioner 100 is in heating mode, thereby increasing the room temperature.

[0061] The AC contactor 22 can connect or disconnect the circuit as needed, thereby controlling the air conditioning equipment. The AC contactor 22 mainly consists of contacts, a coil, and a spring. When the coil is energized, the generated magnetic field attracts the spring, causing the contacts to close and thus connecting the circuit. When the coil is de-energized, the magnetic field disappears, the spring returns to its original state, the contacts open, and the circuit is disconnected.

[0062] In one embodiment, the heating element 21 and the AC contactor 22 can be connected in series with the air pressure switch 31, and the air pressure switch 31 controls the energization and de-energization of the heating element 21 and the AC contactor 22.

[0063] In another embodiment, the AC contactor 22 can be connected in series with the wind pressure switch 31, and the wind pressure switch 31 controls the energization and de-energization of the AC contactor 22.

[0064] In other embodiments, the energized components 20, which are not limited to the heating element 21 and the AC contactor 22, can be connected in series with the air pressure switch 31, and the air pressure switch 31 controls the energization and de-energization of the energized components 20, which are not limited to the heating element 21 and the AC contactor 22.

[0065] Please refer to the figure. Figure 2 and Figure 4 In some embodiments, the air conditioner 100 includes at least one speed control 50, and the wind pressure switch 31, the speed control 50 and the heating element 21 are connected in series.

[0066] Thus, by connecting the air pressure switch 31, the gear position controller 50, and the heating element 21 in series, the air pressure switch 31 can control the power supply to the gear position controller 50 and the heating element 21, thereby preventing an explosion caused by the gear position controller 50 and the heating element 21 being powered on when the refrigerant leaks.

[0067] Specifically, the air conditioner 100 needs to adjust the outlet air temperature according to the indoor room temperature, therefore, it needs to adjust the power of the heating element 21 according to the temperature setting. The air conditioner 100 includes at least one setting controller 50, which can adjust the heating power of the heating element 21 according to the setting. For example, the air conditioner 100 includes a first-level setting controller and a second-level setting controller, the second-level setting controller being able to increase the heating power of the heating element 21 compared to the first-level setting controller.

[0068] The wind pressure switch 31 can connect the gear position controller 50 and the heating element 21 in series, and multiple gear position controllers 50 can be connected in parallel, so that the wind pressure switch 31 can control the power supply and power cut-off of the gear position controller 50 and the heating element 21.

[0069] Please see Figure 2 , Figure 3 and Figure 4 In some embodiments, at least one gear position controller 50 and AC contactor 22 are connected to form a connection terminal 60, which is connected to one end of a wind pressure switch 31, and the other end of the wind pressure switch 31 is connected to a power supply 70.

[0070] Thus, by connecting at least one gear position controller 50 and AC contactor 22 together to form a connection terminal 60 connected in series with the wind pressure switch 31, the wind pressure switch 31 can control the on / off state of the connection terminal 60, thereby improving the power-off efficiency of the gear position controller 50 and AC contactor 22.

[0071] Specifically, to facilitate the control between the pressure switch 31 and the gear position controller 50 and the AC contactor 22, at least one gear position controller 50 and the AC contactor 22 are connected to form a connection terminal 60. The connection terminal 60 can be a pin or terminal block, etc. The connection terminal 60 can be connected to one end of the pressure switch 31, and the other end of the pressure switch 31 can be connected to the power supply 70. Thus, the pressure switch 31 can direct the current supplied by the power supply 70 to the connection terminal 60, and the pressure switch 31 can also disconnect the current supplied by the power supply 70 to the connection terminal 60.

[0072] Please see Figure 5 In some embodiments, the air conditioner 100 includes a housing 80 and an outdoor fan 90. The housing 80 has a first air duct 40 and a second air duct 91 that are separated from each other. The outdoor fan 90 is located inside the housing 80 and is connected to the second air duct 91.

[0073] Thus, by installing an outdoor fan 90 in the air conditioner 100, the air conditioner 100 can exchange air with the indoor unit through the second air duct 91 and the outdoor fan 90. Furthermore, the outdoor fan 90 and the indoor fan 10 are integrated into the same housing 80, which saves space.

[0074] Specifically, the air conditioner 100 can be an integrated air conditioner 100 or a split-type air conditioner 100. The air conditioner 100 includes a casing 80 and an outdoor fan 90. The outdoor fan 90 helps the air conditioner 100 dissipate heat. In the process of cooling the high-temperature and high-pressure gas compressed by the compressor into a liquid, the outdoor fan 90 removes heat by blowing air through the condenser, allowing the refrigerant in the condenser to liquefy smoothly.

[0075] The housing 80 is provided with a first air duct 40 and a second air duct 91 separated from each other. The outdoor fan 90 is located inside the housing 80 and is connected to the second air duct 91. The wind pressure detection component 30 can be installed inside the second air duct 91 and collect the third wind pressure of the outdoor fan 90 and the fourth wind pressure of the second air duct 91. The difference between the third wind pressure and the fourth wind pressure is used to control the power supply and de-energization of the live parts 20.

[0076] Please see Figure 1 , Figure 6 and Figure 7 The present invention provides a control method for an air conditioner 100, the air conditioner 100 including an indoor fan 10, a live component 20, and a wind pressure detection component 30. The indoor fan 10 is connected to the live component 20 through a first air duct 40, and a wind pressure switch 31 is disposed in the first air duct 40 and electrically connected to the live component 20. The control method includes:

[0077] Step 011: According to the start command, control the energized component 20 to be powered on;

[0078] Step 012: Control the wind pressure detection component 30 to collect the first wind pressure of the indoor fan 10 and the second wind pressure of the first air duct 40;

[0079] Step 013: Based on the difference between the first wind pressure and the second wind pressure, control the wind pressure detection component 30 to turn on and off so that the energized component 20 is energized and de-energized.

[0080] The air conditioner 100 includes an indoor fan 10, a live component 20, and a wind pressure detection assembly 30. The indoor fan 10 is connected to the live component 20 through a first air duct 40. A wind pressure switch 31 is located in the first air duct 40 and is electrically connected to the live component 20. The air conditioner 100 also includes a control device 200, which includes a processor 210, a memory 220, and a computer program 221. The processor 210 is capable of executing the computer program 221, which contains instructions for a detection method. The memory 220 is capable of storing the computer program 221, which contains instructions for a detection method.

[0081] Specifically, when the air conditioner receives an on / off command, the processor 210 can control the energized component 20 to be powered on. The on / off command can be pressing the power button 70 of a traditional button-type air conditioner 100, using voice commands such as "turn on the air conditioner" or "start the air conditioner" in a smart air conditioner 100, remotely turning on the air conditioner 100 by clicking a corresponding button on a mobile app, or turning on the air conditioner 100 using the ON button on a remote control.

[0082] The processor 210 can control the wind pressure detection component 30 to collect the first wind pressure of the indoor fan 10 and the second wind pressure of the first air duct 40. For example, the wind pressure detection component 30 can be a pressure sensor. By placing the pressure sensor at the impeller of the indoor fan 10 to detect the first wind pressure and placing the pressure sensor inside the first air duct 40 to detect the second wind pressure, the processor 210 can transmit the first and second wind pressures to the processor 210, so that the processor 210 can calculate the difference between the first and second wind pressures.

[0083] After the processor 210 calculates the difference between the first wind pressure and the second wind pressure, it can compare the preset values ​​stored in the memory 220. Based on the comparison result, the processor 210 can control the wind pressure detection component 30 to disconnect, thereby causing the energized component 20 to lose power.

[0084] Please see Figure 8 In some embodiments, step 013: based on the difference between the first wind pressure and the second wind pressure, controlling the wind pressure detection component 30 to be turned on and off to energize and de-energize the energized component 20 includes:

[0085] Step 0131: If the difference between the first wind pressure and the second wind pressure is less than or equal to a preset value, control the wind pressure detection component 30 to disconnect so that the live part 20 is de-energized;

[0086] Step 0132: When the difference between the first wind pressure and the second wind pressure is greater than a preset value, control the wind pressure detection component 30 to conduct so that the live component 20 is energized.

[0087] In this way, by comparing the difference between the first and second air pressures with a preset value, it is possible to determine whether the indoor fan 10 has malfunctioned based on the comparison result, and in the event of a malfunction, quickly control at least one of the heating element 21 and the AC contactor 22 to cut off the power. Compared with the prior art, which uses a refrigerant sensor and corresponding supporting hardware to control the power cut-off of the live parts 20, this method can save costs and improve the power cut-off rate.

[0088] Specifically, in one embodiment, the energized component 20 includes a heating element 21 and an AC contactor 22. When the difference between the first and second air pressures is less than or equal to a preset value, i.e., when the indoor fan 10 malfunctions and causes a decrease in air pressure, the processor 210 can control the air pressure detection component 30 to disconnect, thereby de-energizing the heating element 21 and the AC contactor 22. When the difference between the first and second air pressures is greater than a preset value, i.e., when the indoor fan 10 is functioning normally, the processor 210 controls the air pressure detection component 30 to conduct, thereby energizing the heating element 21 and the AC contactor 22.

[0089] In one embodiment, the energized component 20 includes an AC contactor 22. When the difference between the first and second air pressures is less than or equal to a preset value (i.e., when the indoor fan 10 malfunctions and causes a decrease in air pressure), the processor 210 can control the air pressure detection component 30 to disconnect, thereby de-energizing the AC contactor 22. When the difference between the first and second air pressures is greater than a preset value (i.e., when the indoor fan 10 is functioning normally), the processor 210 controls the air pressure detection component 30 to conduct, thereby energizing the AC contactor 22.

[0090] In other embodiments, the energized component 20 may include, but is not limited to, the heating element 21 and the AC contactor 22.

[0091] Please see Figure 9 The present invention also provides a computer-readable storage medium 300 storing a computer program 221 thereon. When the computer program 221 is executed by the processor 210, it implements the steps of the control method described in any of the above embodiments. For the sake of brevity, these steps will not be repeated here.

[0092] In the description of this specification, the references to terms such as "some embodiments," "in one example," and "exemplarily" indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0093] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.

[0094] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An air conditioner, characterized in that, include: Indoor fan; The indoor fan is connected to the live component via a first air duct. A wind pressure detection component is configured to collect the first wind pressure of the indoor fan and the second wind pressure of the first air duct, and control the power supply and de-energization of the live components based on the difference between the first wind pressure and the second wind pressure.

2. The air conditioner according to claim 1, characterized in that, If the difference between the first wind pressure and the second wind pressure is greater than a preset value, the energized component is controlled to be powered on. If the difference between the first wind pressure and the second wind pressure is less than or equal to a preset value, the energized component is de-energized.

3. The air conditioner according to claim 2, characterized in that, The preset value is between 25 Pa and 60 Pa.

4. The air conditioner according to claim 1, characterized in that, The wind pressure detection component includes a wind pressure switch, which is located in the first air duct and electrically connected to the energized component. The wind pressure switch is configured to control the energization and de-energization of the energized component based on the difference between the first wind pressure and the second wind pressure.

5. The air conditioner according to claim 4, characterized in that, The energized component includes at least one of an electric heating element and an AC contactor, and the electric heating element and the AC contactor are connected in series with the wind pressure switch.

6. The air conditioner according to claim 5, characterized in that, The air conditioner includes at least one speed control, and the wind pressure switch, the speed control, and the heating element are connected in series.

7. The air conditioner according to claim 6, characterized in that, The at least one gear position controller and the AC contactor are connected to form a connection terminal, which is connected to one end of the wind pressure switch, and the other end of the wind pressure switch is connected to a power source.

8. The air conditioner according to claim 1, characterized in that, The air conditioner includes a housing and an outdoor fan. The housing has a first air duct and a second air duct that are separated from each other. The outdoor fan is located inside the housing and is connected to the second air duct.

9. A control method for an air conditioner, characterized in that, The air conditioner includes an indoor fan, a live component, and a wind pressure detection component. The indoor fan is connected to the live component via a first air duct. The wind pressure switch is located in the first air duct and is electrically connected to the live component. The control method includes: According to the activation command, the energized components are energized; The wind pressure detection component is controlled to collect the first wind pressure of the indoor fan and the second wind pressure of the first air duct; Based on the difference between the first wind pressure and the second wind pressure, the wind pressure detection component is controlled to be turned on and off to energize and de-energize the energized component.

10. The control method according to claim 9, characterized in that, The step of controlling the wind pressure detection component to turn on and off based on the difference between the first wind pressure and the second wind pressure to energize and de-energize the energized component includes: If the difference between the first wind pressure and the second wind pressure is less than or equal to a preset value, the wind pressure detection component is controlled to disconnect so that the energized component is de-energized; If the difference between the first wind pressure and the second wind pressure is greater than a preset value, the wind pressure detection component is controlled to be turned on so that the energized component is powered on.

11. A control device, characterized in that, include: Processor, and; A memory storing a computer program, which, when executed by the processor, implements the steps of the control method according to claim 9 or 10.

12. An air conditioner, characterized in that, Includes the control device as described in claim 11.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the control method according to claim 9 or 10.

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