Control method, control device, air conditioner and storage medium

Abstract

This invention discloses an air conditioner, a control method, a control device, and a storage medium. The control method is used in an air conditioner, which includes an indoor fan assembly, an electrical control box, a heating element, and a pressure detection assembly. The pressure detection assembly is electrically connected to the heating element. A first detection port of the pressure detection assembly is connected to the indoor fan assembly, and a second detection port is connected to the electrical control box. The control method includes, when the heating element is de-energized, controlling the pressure detection assembly to detect a first pressure of the indoor fan assembly and a second pressure of the electrical control box according to a heating start command; and controlling the heating element to be energized or de-energized based on the difference between the first and second pressures. By setting up the pressure detection assembly, the pressure difference between the indoor fan assembly and the electrical control box can be detected. By electrically connecting the pressure detection assembly to the heating element, the energization and de-energization of the heating element can be controlled according to the magnitude of the pressure difference, preventing damage to the air conditioner due to dry burning of the heating element and improving the service life of the air conditioner.

Description

Technical Field

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

[0002] Currently, the indoor fan assembly and electric auxiliary heater of an air conditioner operate independently. When the airflow generated by the indoor fan assembly blows towards the electric auxiliary heater, the airflow carries away the heat generated by the electric auxiliary heater, allowing the air conditioner to blow out hot air. However, when the indoor fan assembly malfunctions, the electric auxiliary heater will still start normally according to the command. However, without the airflow generated by the indoor fan assembly to carry away the heat generated by the electric auxiliary heater, the electric auxiliary heater will burn dry, leading to damage to the air conditioner and reducing its service life. Summary of the Invention

[0003] The present invention provides a control method, control device, air conditioner, and computer-readable storage medium that can solve the problem that the electric auxiliary heating is prone to dry burning and causing damage to the air conditioner when the indoor fan assembly of the air conditioner fails.

[0004] This invention provides a control method for an air conditioner, the air conditioner including an indoor fan assembly, an electrical control box, a heating element, and a wind pressure detection assembly. The wind pressure detection assembly is electrically connected to the heating element. A first detection port of the wind pressure detection assembly is connected to the indoor fan assembly, and a second detection port of the wind pressure detection assembly is connected to the electrical control box. The control method includes: when the heating element is in a de-energized state, controlling the wind pressure detection assembly to detect a first wind pressure of the indoor fan assembly and a second wind pressure of the electrical control box according to a heating start command; and controlling the heating element to be energized or kept de-energized based on the difference between the first wind pressure and the second wind pressure.

[0005] Thus, by installing a wind pressure detection component in the air conditioner, the component can detect the pressure difference between the indoor fan assembly and the electrical control box. Based on the magnitude of the pressure difference, it can determine whether the indoor fan assembly is working properly and control the connection and disconnection of the wind pressure detection component. Furthermore, by electrically connecting the wind pressure detection component to the heating element, it can control the power supply to the heating element based on the pressure difference, thereby preventing damage to the air conditioner caused by dry burning of the heating element and extending the service life of the air conditioner.

[0006] 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 heating element includes controlling the wind pressure detection component to turn off to keep the heating element de-energized 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 heating element when the difference between the first wind pressure and the second wind pressure is greater than the preset value.

[0007] 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 assembly has malfunctioned based on the comparison result, and quickly control the heating element to cut off power in the event of a malfunction. Compared with the existing technology that uses a refrigerant sensor and corresponding hardware to control the heating element to cut off power, this method can save costs and improve the power-off rate.

[0008] In some implementations, the preset value is between 25 Pa and 40 Pa.

[0009] Therefore, by setting the preset value between 25 Pa and 40 Pa, it is possible to promptly and accurately detect whether the indoor fan assembly has malfunctioned. Setting the preset value below 25 Pa is too low, making it impossible to detect malfunctions in the indoor fan assembly in time, thus failing to disconnect the power to the heating element and potentially causing dry burning, leading to damage to the air conditioner. Conversely, setting the preset value below 40 Pa is too high, potentially causing misjudgments during normal operation of the indoor fan assembly, leading to power outages to the heating element and affecting the normal use of the air conditioner.

[0010] An air conditioner provided by an embodiment of the present invention includes an indoor fan assembly, a heating element, an electrical control box, and a wind pressure detection assembly. The indoor fan assembly is connected to the heating element via a first air duct; the wind pressure detection assembly is connected to both the indoor fan assembly and the electrical control box, and is configured to collect a first wind pressure from the indoor fan assembly and a second wind pressure from the electrical control box, and control the heating element to be energized and de-energized based on the difference between the first and second wind pressures.

[0011] Thus, by installing a wind pressure detection component in the air conditioner, the component can detect the pressure difference between the indoor fan assembly and the electrical control box. Based on the magnitude of the pressure difference, it can determine whether the indoor fan assembly is working properly and control the connection and disconnection of the wind pressure detection component. Furthermore, by electrically connecting the wind pressure detection component to the heating element, it can control the power supply to the heating element based on the pressure difference, thereby preventing damage to the air conditioner caused by dry burning of the heating element and extending the service life of the air conditioner.

[0012] In some embodiments, the air conditioner includes an air duct, and the wind pressure detection component includes a first detection port, which is connected to the indoor fan component through the air duct.

[0013] Thus, by connecting the first detection port of the wind pressure detection component to the indoor fan component, the wind pressure detection component is able to detect the pressure of the indoor fan component.

[0014] In some embodiments, the indoor fan assembly includes a housing and a fan, the fan being disposed within the housing, the housing having an air outlet and a third detection port, one end of the air guide pipe being disposed at the detection port, and the third detection port and the air outlet being located on opposite sides of the rotation axis of the fan.

[0015] In this way, by placing the third detection port, which connects the air duct to the indoor fan assembly, and the air outlet of the indoor fan assembly on opposite sides of the rotation axis of the indoor fan assembly's fan, the third detection port can avoid the air outlet and prevent the detection port from being affected by the static pressure of the air outlet, thereby improving the accuracy of the detection results.

[0016] In some embodiments, the wind pressure detection component includes a second detection port, the wind pressure detection component is disposed on the electrical control box, and the second detection port is connected to the electrical control box.

[0017] Thus, by connecting the second detection port of the wind pressure detection component to the electrical control box, the wind pressure detection component can detect the pressure of the electrical control box.

[0018] In some embodiments, the wind pressure detection component includes a wind pressure switch, which is connected to the electrical control box and the indoor fan assembly, and is electrically connected to the heating element. The wind pressure switch is configured to control the power supply and de-energization of the heating element based on the difference between the first wind pressure and the second wind pressure.

[0019] Thus, by using the wind pressure switch as a wind pressure detection component to detect wind pressure and control the power on and off of the heating element, the mechanical wind pressure switch does not require other controllers, saving time in sending and receiving control information, improving the power on / off speed of the heating element and reducing costs.

[0020] In some embodiments, the heating element includes an electric heating element connected in series with the wind pressure switch.

[0021] In this way, by connecting the heating element in series with the air pressure switch, the power supply to the heating element can be controlled according to the opening and closing of the air pressure switch, thereby preventing the heating element from being damaged by dry burning and extending the service life of the air conditioner.

[0022] 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.

[0023] The air conditioner according to the embodiments of the present invention includes the control device described in the above embodiments.

[0024] 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.

[0025] 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

[0026] 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:

[0027] Figure 1 This is a structural schematic diagram of an air conditioner according to certain embodiments of the present invention;

[0028] Figure 2 This is a flowchart illustrating the control method of some embodiments of the present invention;

[0029] Figure 3 This is a schematic diagram of the control device according to certain embodiments of the present invention;

[0030] Figure 4 This is a flowchart illustrating the control method of some embodiments of the present invention;

[0031] Figure 5 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.

[0032] Explanation of reference numerals for key components:

[0033] 100. Air conditioner; 10. Indoor fan assembly; 11. Housing; 111. Air outlet; 112. Third detection port; 12. Fan; 20. Electrical control box; 30. Heating element; 31. Electric heating element; 40. Air pressure detection assembly; 41. First detection port; 42. Second detection port; 43. Air pressure switch; 50. First air duct; 60. Air guide pipe; 200. Control device; 210. Processor; 220. Memory; 221. Computer program; 300. Computer-readable storage medium. Detailed Implementation

[0034] 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.

[0035] When an air conditioner is in heating mode, the airflow from the indoor fan unit carries away the heat generated by the heating element, thus warming the indoor environment. However, the indoor fan unit and the heating element operate independently. If the indoor fan unit malfunctions, but the heating element continues to operate normally according to the heating command, no airflow from the indoor fan unit will carry away the heat generated by the heating element. This can cause the heating element to burn dry, damaging the air conditioner and reducing its lifespan.

[0036] To address the aforementioned technical problems, this invention provides a control method for an air conditioner.

[0037] Please see Figure 1 , Figure 2 and Figure 3 The present invention provides a control method for an air conditioner 100. The air conditioner 100 includes an indoor fan assembly 10, an electrical control box 20, a heating element 30, and a wind pressure detection assembly 40. The wind pressure detection assembly 40 is electrically connected to the heating element 30. The first detection port 41 of the wind pressure detection assembly 40 is connected to the indoor fan assembly 10, and the second detection port 42 of the wind pressure detection assembly 40 is connected to the electrical control box 20. The control method includes:

[0038] Step 011: When the heating element 30 is in a power-off state, according to the heating start command, control the wind pressure detection component 40 to detect the first wind pressure of the indoor fan component 10 and the second wind pressure of the electrical control box 20;

[0039] Step 012: Based on the difference between the first air pressure and the second air pressure, control the heating element 30 to be powered on or kept powered off.

[0040] Thus, by installing a wind pressure detection component 40 in the air conditioner 100, the wind pressure detection component 40 can detect the pressure difference between the indoor fan assembly 10 and the electrical control box 20. Based on the magnitude of the pressure difference, it can determine whether the indoor fan assembly 10 is working properly and control the connection and disconnection of the wind pressure detection component 40. Furthermore, by electrically connecting the wind pressure detection component 40 to the heating element 30, it can control the power supply to and from the heating element 30 based on the magnitude of the pressure difference. This can prevent the heating element 30 from being damaged by dry burning, thereby improving the service life of the air conditioner 100.

[0041] The air conditioner 100 is a device used to directly supply treated air to an enclosed room, space, or area. The air conditioner 100 can provide cooling, heating, dehumidification, and air purification functions to the indoor environment. The 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. The air conditioner 100 includes a control device 200, which includes a processor 210, a memory 220, and a computer program 221. The processor 210 can execute the computer program 221, which contains instructions for a detection method, and the memory 220 can store the computer program 221 containing instructions for the detection method.

[0042] Specifically, the air conditioner 100 includes an indoor fan assembly 10, a heating element 30, and a wind pressure detection assembly 40. The indoor fan assembly 10 includes a motor and a fan wheel. The motor controls the fan wheel's rotation to generate airflow, enabling the indoor fan assembly 10 to achieve heat exchange with the indoor environment. For example, when the air conditioner 100 is cooling, the indoor fan assembly 10 blows the cold air around the evaporator in the air conditioner 100 towards the indoor environment, achieving forced convection and lowering the indoor temperature. When the air conditioner 100 is heating, it exhausts the cold air from the indoor environment to the outside through ducts, while simultaneously blowing the hot air around the condenser in the air conditioner 100 towards the indoor environment, raising the indoor temperature.

[0043] The heating element 30 generates heat according to changes in the indoor ambient temperature, thereby improving the heating effect of the air conditioner 100. For example, the heating element 30 can be an electric auxiliary heater, which typically uses PTC (Positive Temperature Coefficient) semiconductor heating ceramics or resistance wire as the heating element. When the indoor ambient temperature decreases, the resistance value of the PTC decreases accordingly, and the heat generation of the electric auxiliary heater increases accordingly. This allows heat to be generated when current passes through the resistance wire of the electric auxiliary heater. The air conditioner 100 uses the airflow generated by the indoor fan assembly 10 to carry the heat into the indoor environment, thereby raising the indoor ambient temperature. Furthermore, the indoor fan assembly 10 can be connected to the heating element 30 through the first air duct 50, allowing the airflow generated by the indoor fan assembly 10 to reach and heat the heating element 30 through the first air duct 50.

[0044] The electrical control box 20 is an important component of the air conditioner 100, which can control and regulate the operation of the air conditioner 100. For example, the electrical control box 20 contains key components such as circuit boards, microprocessors 210, sensors, relays, and power supplies. Through the joint cooperation of multiple key components, precise control and regulation of the air conditioner 100 can be achieved.

[0045] The wind pressure detection component 40 can be used to detect the airflow pressure generated by the indoor fan assembly 10, and the wind pressure detection component 40 can be electrically connected to the heating element 30, so that the wind pressure detection component 40 can control the power supply and de-energization of the heating element 30 according to the pressure difference. For example, the wind pressure detection component 40 includes a first detection port 41 and a second detection port 42. The first detection port 41 can be connected to the indoor fan assembly 10, and the second detection port 42 can be connected to the electrical control box 20. So that when the indoor fan assembly 10 is working, the wind pressure detection component 40 can collect the first wind pressure at the impeller of the indoor fan assembly 10 and the second wind pressure in the electrical control box 20, and by calculating the difference between the first wind pressure and the second wind pressure, and comparing the difference with a preset value, the working state of the indoor fan assembly 10 can be determined, and the power supply and de-energization of the heating element 30 can be controlled according to the working state of the indoor fan assembly 10.

[0046] When the heating element 30 is de-energized and the air conditioner 100 receives a heating start command, the processor 210 can control the air pressure detection component 40 to collect the first air pressure of the indoor fan component 10 and the second air pressure of the electrical control box 20. The heating start command can be, for example, pressing the power button and heating button of a traditional button-type air conditioner 100; it can be, in a smart air conditioner 100, using voice commands such as "turn on air conditioner 100 for heating" or "start air conditioner heating"; it can be, via a mobile app clicking the corresponding button to remotely turn on the air conditioner 100; or it can be, via the ON button on a remote control.

[0047] For example, the wind pressure detection component 40 can be a pressure sensor. By placing the pressure sensor at the impeller of the indoor fan component 10, it can detect the first wind pressure and transmit the first wind pressure to the processor 210. By placing the pressure sensor in the electrical control box 20, it can detect the second wind pressure and transmit the second wind pressure to the processor 210. After the processor 210 obtains the first wind pressure and the second wind pressure, it can calculate the difference between the first wind pressure and the second wind pressure.

[0048] After the processor 210 calculates the difference between the first wind pressure and the second wind pressure, it can compare the difference with a preset value stored in the memory 220. Based on the comparison result, the processor 210 can control the connection and disconnection of the wind pressure detection component 40, thereby controlling the heating element 30 to be powered on and kept powered off.

[0049] Please see Figure 4 In some embodiments, step 012: controlling the heating element 30 to be energized and de-energized based on the difference between the first air pressure and the second air pressure, includes:

[0050] Step 0121: 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 40 to disconnect so that the heating element 30 is de-energized;

[0051] Step 0122: When the difference between the first wind pressure and the second wind pressure is greater than the preset value, control the wind pressure detection component 40 to conduct so that the heating element 30 is energized.

[0052] 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 assembly 10 has malfunctioned based on the comparison result, and quickly control the heating element 30 to cut off power in the event of a malfunction. Compared with the prior art, which controls the heating element 30 to cut off power through a refrigerant sensor and corresponding supporting hardware, this method can save costs and improve the power-off rate.

[0053] Specifically, when the difference between the first air pressure and the second air pressure is less than or equal to a preset value, that is, when the indoor fan assembly 10 malfunctions and causes the air pressure to decrease, the processor 210 can control the air pressure detection assembly 40 to disconnect so that the heating element 30 is de-energized; when the difference between the first air pressure and the second air pressure is greater than a preset value, that is, when the indoor fan assembly 10 can work normally, the processor 210 controls the air pressure detection assembly 40 to conduct so that the heating element 30 is energized.

[0054] In some implementations, the preset value is between 25 Pa and 40 Pa. For example, the preset value can be any value between 25 Pa, 30 Pa, 35 Pa, 40 Pa, or between 25 Pa and 40 Pa. Thus, by setting the preset value between 25 Pa and 40 Pa, it is possible to promptly and accurately detect whether the indoor fan assembly 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 a malfunction in the indoor fan assembly 10 in a timely manner, thus failing to disconnect the power supply to the heating element 30 in time, easily leading to dry burning and damage to the air conditioner 100. If the preset value is set to less than 40 Pa, the preset value is too large, easily causing misjudgment during the normal operation of the indoor fan assembly 10, leading to the power outage of the heating element 30, thereby affecting the normal use of the air conditioner 100.

[0055] Please see Figure 1 An embodiment of the present invention provides a control method for an air conditioner 100, which includes an indoor fan assembly 10, a heating element 30, an electrical control box 20, and a wind pressure detection assembly 40. The indoor fan assembly 10 is connected to the heating element 30 via a first air duct 50. The wind pressure detection assembly 40 is connected to both the indoor fan assembly 10 and the electrical control box 20. The wind pressure detection assembly 40 is configured to collect a first wind pressure of the indoor fan assembly 10 and a second wind pressure of the electrical control box 20, and control the heating element 30 to be energized and de-energized based on the difference between the first and second wind pressures.

[0056] Thus, by installing a wind pressure detection component 40 in the air conditioner 100, the wind pressure detection component 40 can detect the pressure difference between the indoor fan assembly 10 and the electrical control box 20. Based on the magnitude of the pressure difference, it can determine whether the indoor fan assembly 10 is working properly and control the connection and disconnection of the wind pressure detection component 40. Furthermore, by electrically connecting the wind pressure detection component 40 to the heating element 30, it can control the power supply to and from the heating element 30 based on the magnitude of the pressure difference. This can prevent the heating element 30 from being damaged by dry burning, thereby improving the service life of the air conditioner 100.

[0057] Specifically, the air conditioner 100 includes an indoor fan assembly 10, a heating element 30, an electrical control box 20, and a wind pressure detection assembly 40. The indoor fan assembly 10 includes a motor and a fan wheel. The motor controls the fan wheel to rotate, generating airflow, thereby enabling the indoor fan assembly 10 to achieve heat exchange with the indoor environment. For example, when the air conditioner 100 is cooling, the indoor fan assembly 10 is responsible for blowing the cold air around the evaporator in the air conditioner 100 towards the indoor environment, achieving forced convection and lowering the indoor temperature. When the air conditioner 100 is heating, it exhausts the cold air from the indoor environment to the outside through ducts, while simultaneously blowing the hot air around the condenser in the air conditioner 100 towards the indoor environment, raising the indoor temperature.

[0058] The heating element 30 generates heat according to changes in the indoor ambient temperature, thereby improving the heating effect of the air conditioner 100. For example, the heating element 30 can be an electric auxiliary heater, which typically uses PTC (Positive Temperature Coefficient) semiconductor heating ceramics or resistance wire as the heating element. When the indoor ambient temperature decreases, the resistance value of the PTC decreases accordingly, and the heat generation of the electric auxiliary heater increases accordingly. This allows heat to be generated when current passes through the resistance wire of the electric auxiliary heater. The air conditioner 100 uses the airflow generated by the indoor fan assembly 10 to carry the heat into the indoor environment, thereby raising the indoor ambient temperature. Furthermore, the indoor fan assembly 10 can be connected to the heating element 30 through the first air duct 50, allowing the airflow generated by the indoor fan assembly 10 to reach the heating element 30 through the first air duct 50.

[0059] The electrical control box 20 is an important component of the air conditioner 100, which can control and regulate the operation of the air conditioner 100. For example, the electrical control box 20 contains key components such as circuit boards, microprocessors 210, sensors, relays, and power supplies. Through the joint cooperation of multiple key components, precise control and regulation of the air conditioner 100 can be achieved.

[0060] The wind pressure detection component 40 can be used to detect the airflow pressure generated by the indoor fan assembly 10, and the wind pressure detection component 40 can be electrically connected to the heating element 30, so that the wind pressure detection component 40 can control the power supply and de-energization of the heating element 30 according to the pressure difference. For example, the wind pressure detection component 40 includes a first detection port 41 and a second detection port 42. The first detection port 41 can be connected to the indoor fan assembly 10, and the second detection port 42 can be connected to the electrical control box 20. So that when the indoor fan assembly 10 is working, the wind pressure detection component 40 can collect the first wind pressure at the impeller of the indoor fan assembly 10 and the second wind pressure in the electrical control box 20, and by calculating the difference between the first wind pressure and the second wind pressure, and comparing the difference with a preset value, the working state of the indoor fan assembly 10 can be determined, and the power supply and de-energization of the heating element 30 can be controlled according to the working state of the indoor fan assembly 10.

[0061] The indoor fan assembly 10 can be connected to the heating element 30 through the first air duct 50. The first air duct 50 can be connected to the indoor environment and can deliver the airflow generated by the indoor fan assembly 10 to the indoor environment. The heating element 30 is set in the first air duct 50, so that the airflow can deliver the heat generated by the heating element 30 to the indoor environment, thereby raising the temperature of the indoor environment.

[0062] The wind pressure detection component 40 can be connected to the indoor fan component 10 and the electrical control box 20 respectively, so that the wind pressure detection component 40 can collect the first wind pressure of the indoor fan component 10 and the second wind pressure of the electrical control box 20, and control the power supply and keep the heating element 30 off according to the difference between the first wind pressure and the second wind pressure.

[0063] Please see Figure 1 In some embodiments, the air conditioner 100 includes an air duct 60, and the wind pressure detection assembly 40 includes a first detection port 41, which is connected to the indoor fan assembly 10 through the air duct 60.

[0064] Thus, by connecting the first detection port 41 of the wind pressure detection component 40 to the indoor fan component 10, the wind pressure detection component 40 can detect the pressure of the indoor fan component 10.

[0065] Specifically, the air conditioner 100 includes an air duct 60, which connects to the indoor fan assembly 10, thereby guiding the airflow generated by the indoor fan assembly 10. The air pressure detection assembly 40 includes a first detection port 41, which is used to detect the pressure at various points inside the air conditioner 100. By connecting the first detection port 41 and the indoor fan assembly 10 through the air duct 60, the airflow generated by the indoor fan assembly 10 can enter the first detection port 41 through the air duct 60, thus enabling the air pressure detection assembly 40 to detect the air pressure of the indoor fan assembly 10.

[0066] Please see Figure 1 In some embodiments, the indoor fan assembly 10 includes a housing 11 and a fan 12. The fan 12 is disposed inside the housing 11. The housing 11 is provided with an air outlet 111 and a third detection port 112. One end of the air duct 60 is disposed at the detection port. The third detection port 112 and the air outlet 111 are located on both sides of the rotation axis L of the fan 12.

[0067] Thus, by placing the third detection port 112, which connects the air duct 60 to the indoor fan assembly 10, and the air outlet 111 of the indoor fan assembly 10 on opposite sides of the rotation axis L of the fan 12 of the indoor fan assembly 10, the detection port can avoid the air outlet 111, thus preventing the third detection port 112 from being affected by the static pressure of the air outlet 111, thereby improving the accuracy of the detection results.

[0068] Specifically, the indoor fan assembly 10 includes a housing 11 and a fan 12. The housing 11 can be volute-shaped, forming a space to accommodate the fan 12. The fan 12 includes a motor and fan blades, with the blades fixed to the motor shaft. The rotation of the motor drives the fan blades to generate airflow. The housing 11 has an air outlet 111 and a third detection port 112. The airflow generated by the fan 12 is delivered from the air outlet 111 into the first air duct. The third detection port 112 can be connected to one end of an air duct 60, and the other end of the air duct 60 can be connected to a wind pressure detection component 40. Thus, the airflow generated by the fan 12 enters the air duct 60 through the third detection port 112 and is detected by the wind pressure detection component 40 to obtain the first wind pressure of the indoor fan assembly 10.

[0069] It should be noted that the third detection port 112 and the air outlet 111 are located on opposite sides of the rotation axis L of the fan 12. For example, as Figure 1 As shown, the third detection port 112 is located on the side of the rotation axis L of the fan 12 away from the air outlet 111, so as to avoid the third detection port 112 being affected by the static pressure of the air outlet 111, thereby improving the accuracy of the wind pressure detection component 40 in detecting the first wind pressure of the indoor fan 12.

[0070] Please see Figure 1 In some embodiments, the wind pressure detection component 40 includes a second detection port 42, the wind pressure detection component 40 is disposed on the electrical control box 20, and the second detection port 42 is connected to the electrical control box 20.

[0071] Thus, by connecting the second detection port 42 of the wind pressure detection component 40 to the electrical control box 20, the wind pressure detection component 40 can detect the pressure of the electrical control box 20.

[0072] Specifically, the wind pressure detection component 40 is mounted on the electrical control box 20. For example, the wind pressure detection component 40 can be fixed to the outer shell of the electrical control box 20 by welding or bolting. The wind pressure detection component 40 includes a second detection port 42, which can penetrate the outer shell of the electrical control box 20 and communicate with the interior of the electrical control box 20, thereby enabling the second detection port 42 to detect the second air pressure inside the electrical control box 20.

[0073] Please see Figure 1 In some embodiments, the wind pressure detection component 40 includes a wind pressure switch 43, which is connected to the electrical control box 20 and the indoor fan assembly 10, and is electrically connected to the heating element 30. The wind pressure switch 43 is configured to control the power supply and de-energization of the heating element 30 based on the difference between the first wind pressure and the second wind pressure.

[0074] Thus, by using the wind pressure switch 43 as the wind pressure detection component 40 to detect wind pressure and control the power on and off of the heating element 30, the mechanical wind pressure switch 43 does not require other controllers, saving time in sending and receiving control information, increasing the power on or off speed of the heating element 30 and reducing costs.

[0075] Specifically, the wind pressure detection component 40 includes a wind pressure switch 43, which is a mechanical component for detecting wind pressure. The wind pressure switch 43 includes a first detection port 41, a second detection port 42, a diaphragm, a microswitch, a positive pressure chamber, and a negative pressure chamber. The wind pressure switch 43 utilizes the static pressure of the gas to actuate the microswitch, thereby switching the current on and off. The wind pressure switch 43 has two detection ports, namely the first detection port 41 and the second detection port 42, which divide its cavity into a positive pressure chamber and a negative pressure chamber. A diaphragm separates the negative pressure area and the positive pressure area of ​​the indoor fan assembly 10 between the two chambers, and a third detection port 112 is connected to the negative pressure detection port of the wind pressure switch 43. When the indoor fan assembly 10 rotates, airflow is delivered to the negative pressure chamber through the air guide pipe 60 to create negative pressure. At this time, the diaphragm moves and triggers the microswitch, thereby achieving the purpose of opening / closing.

[0076] The wind pressure switch 43 can be installed on the outer shell of the electrical control box 20, and the micro switch inside the wind pressure switch 43 can be electrically connected to the heating element 30. Thus, the wind pressure switch 43 can push the micro switch to move according to the difference between the first wind pressure and the second wind pressure to control the power supply and power cut-off of the heating element 30.

[0077] Please see Figure 1 In some embodiments, the heating element 30 includes an electric heating element 31, which is connected in series with the wind pressure switch 43.

[0078] Thus, by connecting the heating element 31 in series with the air pressure switch 43, the power supply to the heating element 31 can be controlled by the opening and closing of the air pressure switch 43, thereby preventing the heating element 30 from being damaged by dry burning and improving the service life of the air conditioner 100.

[0079] Specifically, the heating element 30 includes an electric heating element 31. The electric heating element 31 can be an auxiliary electric heater, which heats the airflow delivered to the indoor environment when the air conditioner 100 is in heating mode, thereby increasing the indoor temperature. The electric heating element 31 can be connected in series with the air pressure switch 43, so that the energization and de-energization of the electric heating element 31 are determined based on the difference between the first air pressure and the second air pressure collected by the air pressure switch 43.

[0080] For example, when the difference between the first air pressure and the second air pressure is less than or equal to a preset value, that is, when the indoor fan assembly 10 malfunctions and causes the air pressure to decrease, the air pressure switch 43 can be controlled to open so that the heating element 31 is de-energized; when the difference between the first air pressure and the second air pressure is greater than a preset value, that is, when the indoor fan assembly 10 can work normally, the air pressure switch 43 can be controlled to open so that the heating element 31 is energized.

[0081] Please see Figure 5 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.

[0082] 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.

[0083] 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.

[0084] 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. A control method for an air conditioner, characterized in that, The air conditioner includes an indoor fan assembly, an electrical control box, a heating element, and a wind pressure detection assembly. The wind pressure detection assembly is electrically connected to the heating element. A first detection port of the wind pressure detection assembly is connected to the indoor fan assembly, and a second detection port of the wind pressure detection assembly is connected to the electrical control box. The control method includes: When the heating element is in a power-off state, the wind pressure detection component is controlled to detect the first wind pressure of the indoor fan assembly and the second wind pressure of the electrical control box according to the heating start command; The heating element is controlled to be powered on or kept powered off based on the difference between the first air pressure and the second air pressure.

2. The control method according to claim 1, characterized in that, The step of controlling the heating element to be energized or kept de-energized based on the difference between the first wind pressure and the second wind pressure 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 heating element remains de-energized; If the difference between the first wind pressure and the second wind pressure is greater than the preset value, the wind pressure detection component is turned on to energize the heating element.

3. The control method according to claim 2, characterized in that, The preset value is between 25 Pa and 40 Pa.

4. An air conditioner, characterized in that, include: Indoor fan assembly; A heating element, wherein the indoor fan assembly is connected to the heating element through a first air duct; Electrical control box; A wind pressure detection component is connected to the indoor fan assembly and the electrical control box. The wind pressure detection component is configured to collect the first wind pressure of the indoor fan assembly and the second wind pressure of the electrical control box, and control the heating element to be powered on and kept powered off 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 air conditioner includes an air duct, and the wind pressure detection component includes a first detection port, which is connected to the indoor fan component through the air duct.

6. The air conditioner according to claim 5, characterized in that, The indoor fan assembly includes a housing and a fan. The fan is disposed inside the housing. The housing is provided with an air outlet and a third detection port. One end of the air guide pipe is disposed at the third detection port. The third detection port and the air outlet are located on opposite sides of the rotation axis of the fan.

7. The air conditioner according to claim 4, characterized in that, The wind pressure detection component includes a second detection port, which is mounted on the electrical control box and is connected to the electrical control box.

8. The air conditioner according to claim 4, characterized in that, The wind pressure detection component includes a wind pressure switch, which is connected to the electrical control box and the indoor fan assembly, and is electrically connected to the heating element. The wind pressure switch is configured to control the power supply and de-energization of the heating element based on the difference between the first wind pressure and the second wind pressure.

9. The air conditioner according to claim 8, characterized in that, The heating element includes an electric heating element, which is connected in series with the wind pressure switch.

10. 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 any one of claims 1 to 3.

11. An air conditioner, characterized in that, Includes the control device as described in claim 10.

12. 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 any one of claims 1 to 3.

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