Air conditioner and its control method, readable storage medium

Abstract

This application discloses an air conditioner and its control method, as well as a readable storage medium. The method includes: after the air conditioner starts in heating mode, acquiring the current temperature of the indoor heat exchanger; when the current temperature is less than or equal to a preset temperature, adjusting the opening angle of the air guide vane to a first preset angle, and starting the indoor fan, where the first preset angle is the minimum opening angle of the air guide vane. This solves the technical problem of cold air being blown directly onto the user when the air guide vane opens at a large angle during the initial stage of heating mode operation.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an air conditioner and its control method, and a readable storage medium. Background Technology

[0002] In existing technology, when an air conditioner enters heating mode, it detects whether the indoor heat exchanger is starting up or the indoor fan is turning off. For example, when the air conditioner is turned on to enter heating mode, the air deflector of the air conditioner maintains its maximum opening angle. Since the airflow blown into the room by the fan is at a lower temperature in the initial stage of compressor startup, it feels like a cold breeze when it blows on a person. Summary of the Invention

[0003] This application provides an air conditioner and its control method, as well as a readable storage medium, to solve the technical problem of cold air blowing directly onto the user when the air guide plate opens at a large angle during the initial stage of operation in heating mode.

[0004] To achieve the above objectives, embodiments of this application provide a control method for an air conditioner, the control method comprising:

[0005] After the air conditioner starts heating mode, the current temperature of the indoor heat exchanger of the air conditioner is obtained;

[0006] When the current temperature is less than or equal to the preset temperature, the opening angle of the air guide plate is adjusted to the first preset angle, and the indoor fan is started. The first preset angle is the minimum opening angle of the air guide plate.

[0007] Optionally, after the step of obtaining the current temperature of the indoor heat exchanger of the air conditioner, the method further includes:

[0008] When the current temperature is greater than the preset temperature, the opening angle of the air guide plate is adjusted to a second preset angle, wherein the second preset angle is greater than the first preset angle.

[0009] Optionally, after the step of adjusting the opening angle of the air guide plate to a first preset angle, the method further includes:

[0010] Obtain the runtime of the heating mode;

[0011] When the duration exceeds the preset duration, the opening angle of the air guide plate is increased.

[0012] Optionally, after the step of adjusting the opening angle of the air guide plate to the second preset angle, the method further includes:

[0013] Obtain the indoor temperature of the environment where the air conditioner is located;

[0014] When the indoor temperature is determined to be greater than the indoor temperature threshold, the compressor of the air conditioner is turned off, and the angle of the air guide plate is adjusted to a first preset angle.

[0015] Optionally, after the steps of turning off the compressor of the air conditioner and adjusting the angle of the air guide plate to a first preset angle, the method further includes:

[0016] Obtain the shutdown duration of the compressor;

[0017] When the shutdown duration exceeds the preset shutdown duration, the indoor fan is turned off.

[0018] Optionally, the air conditioner includes an electronic expansion valve, and after the step of obtaining the current temperature of the indoor heat exchanger of the air conditioner, the following steps are included:

[0019] When the current temperature of the indoor heat exchanger is less than or equal to the preset temperature, the opening degree of the electronic expansion valve is controlled to be the first opening degree.

[0020] When the current temperature of the indoor heat exchanger is greater than the preset temperature, the opening degree of the electronic expansion valve is controlled to be a second opening degree, where the first opening degree is less than the second opening degree.

[0021] Optionally, the air conditioner includes an indoor fan, and after obtaining the current temperature of the indoor heat exchanger of the air conditioner, it further includes:

[0022] Obtain the rotational speed corresponding to the temperature range in which the current temperature of the indoor heat exchanger falls;

[0023] The indoor fan is controlled to operate at the specified speed. The higher the temperature corresponding to the specified temperature range, the greater the speed corresponding to the specified temperature range.

[0024] In addition, to achieve the above objectives, this application also provides an air conditioner, including a memory, a processor, and an air conditioner control program stored in the memory and executable on the processor. When the processor executes the air conditioner control program, it implements the air conditioner control method as described above.

[0025] In addition, to achieve the above objectives, this application also provides a computer-readable storage medium storing an air conditioner control program thereon, which, when executed by a processor, implements the air conditioner control method as described in any of the preceding claims.

[0026] In this embodiment, after the air conditioner starts the heating mode, the current temperature of the indoor heat exchanger of the air conditioner is obtained. When it is determined that the current temperature of the indoor heat exchanger is less than or equal to the preset temperature, the opening angle of the air guide plate is adjusted to the first preset angle. At the first preset angle, the air guide plate disperses the air blown by the air conditioner into the room to the surroundings of the air conditioner, avoiding the phenomenon of air blowing into the room in gusts, causing the user to feel cold air. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiments of this application;

[0028] Figure 2 This is a schematic flowchart of an embodiment of the control method for the air conditioner of this application;

[0029] Figure 3 This is a schematic diagram of the air conditioning system in this application;

[0030] Figure 4 This is a schematic flowchart of another embodiment of the control method for the air conditioner of this application;

[0031] Figure 5 This is a schematic flowchart of another embodiment of the control method for the air conditioner of this application;

[0032] Figure 6 This is a schematic flowchart of another embodiment of the control method for the air conditioner of this application;

[0033] Figure 7 This is a schematic flowchart of another embodiment of the control method for the air conditioner of this application;

[0034] Figure 8 This is a schematic diagram illustrating the inventive concept of the control method for the air conditioner of this application. Detailed Implementation

[0035] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application.

[0036] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0037] In existing technology, when an air conditioner enters heating mode, it detects whether the indoor heat exchanger is starting or shutting down the indoor fan. For example, after stopping heating, the air conditioner only determines to shut down the fan and stop blowing cold air into the room when it detects that the indoor pipe temperature is 24 degrees Celsius. During the process from stopping heating to shutting down the indoor fan, the air guide vane maintains its maximum opening angle. However, since the air conditioner has stopped heating, the airflow blowing into the room is relatively cold, which feels like blowing cold air when it hits a person, reducing the user's experience.

[0038] Based on this, this application proposes a control method for an air conditioner. After the air conditioner starts the heating mode, the current temperature of the indoor heat exchanger of the air conditioner is obtained. When it is determined that the current temperature of the indoor heat exchanger is less than or equal to a preset temperature, the opening angle of the air guide plate is adjusted to a first preset angle. At the first preset angle, the air guide plate disperses the air blown by the air conditioner into the room to the surroundings of the air conditioner, so as to avoid the air being blown into the room in gusts, causing the user to feel cold air.

[0039] like Figure 1 As shown, Figure 1 This is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiments of this application.

[0040] like Figure 1 As shown, the terminal may include: a processor 1001, such as a CPU; a network interface 1004; a user interface 1003; a memory 1005; and a communication bus 1002. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard. Optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1005 may be high-speed RAM or non-volatile memory, such as a disk drive. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0041] Those skilled in the art will understand that Figure 1 The terminal structure shown does not constitute a limitation on the terminal device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0042] like Figure 1 As shown, the memory 1005, which is a computer-readable storage medium, may include an operating system, a network communication module, a user interface module, and a control program for an air conditioner.

[0043] exist Figure 1In the terminal shown, network interface 1004 is mainly used for data communication with the backend server; user interface 1003 is mainly used for data communication with the client (user terminal); and when the terminal is an air conditioner, processor 1001 can be used to call the air conditioner control program in memory 1005 and perform the following operations:

[0044] After the air conditioner starts heating mode, the current temperature of the indoor heat exchanger of the air conditioner is obtained;

[0045] When the current temperature is less than or equal to the preset temperature, the opening angle of the air guide plate is adjusted to the first preset angle, and the indoor fan is started. The first preset angle is the minimum opening angle of the air guide plate.

[0046] refer to Figure 2 , Figure 2 This is a flowchart illustrating an embodiment of the control method for the air conditioner of this application.

[0047] This application provides an embodiment of a control method for an air conditioner. It should be noted that although the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than that shown here.

[0048] Air conditioner control methods include:

[0049] Step S10: After the air conditioner starts the heating mode, obtain the current temperature of the indoor heat exchanger of the air conditioner;

[0050] The current temperature is the temperature obtained by the indoor heat exchanger through the temperature acquisition device.

[0051] Reference Figure 3 , Figure 3 This is a schematic diagram of the air conditioning system in this application.

[0052] In this application, the air conditioning system includes 1 fixed-frequency compressor, 2 four-way valve, 3 condenser, 31 upper fan, 32 lower fan, 33 pipeline temperature sensor T3, 4 filter, 5 heating throttling valve, 6 cooling throttling valve, 7 filter, 8 indoor heat exchanger, 81 indoor fan, 82 temperature sensor for collecting the current temperature T2 of the indoor heat exchanger, 9 vapor-liquid separator, and electronic expansion valve (not shown in the figure). Its functions are as follows: Fixed-frequency compressor: compresses and transports refrigerant; its speed is fixed. Four-way valve: switches between cooling and heating modes. Condenser: acts as the condenser during cooling, dissipating heat from the refrigerant; acts as the evaporator during heating, absorbing heat from the refrigerant. Upper and lower fans: drive outdoor air through the heat exchanger, allowing heat exchange between the air and the refrigerant in the pipes. Filter: filters impurities in the system, preventing them from entering the throttling components, which could lead to poor throttling efficiency or blockage. Heating throttling valve: throttling and pressure reduction during system heating; it does not throttle during system cooling (i.e., unidirectional throttling, no throttling in the reverse direction). Cooling throttling... Valve: During system cooling, it acts as a throttling and pressure-reducing device; during system heating, it does not throttle, i.e., it throttles in one direction only, and does not throttle in the reverse direction. Indoor heat exchanger: During cooling, it acts as the evaporator, absorbing heat from the refrigerant; during heating, it acts as the condenser, dissipating heat from the refrigerant. Indoor fan: It drives indoor air through the heat exchanger, allowing the air to exchange heat with the refrigerant in the pipes. Indoor pipe temperature sensor: It detects the current temperature of the indoor heat exchanger. Vapor-liquid separator: It separates the gaseous and liquid refrigerant in the system. The gaseous refrigerant returns to the compressor for further compression and circulation, while the liquid refrigerant remains in the vapor-liquid separator, preventing liquid slugging in the compressor.

[0053] When the air conditioning system is in heating mode, the high-temperature and high-pressure gaseous refrigerant discharged from the compressor flows through the four-way valve and enters the indoor heat exchanger side for heat dissipation. After passing through the filter, it then passes through the heating throttling valve to form a low-temperature and low-pressure refrigerant. The refrigerant then enters the outdoor condenser to absorb heat and evaporate. After flowing into the gas-liquid separator for gas-liquid separation, the gaseous refrigerant returns to the compressor for circulation, while the liquid refrigerant is stored in the gas-liquid separator.

[0054] In heating mode, to prevent the air conditioner from blowing cold air into the room due to insufficient heat at the beginning of the heating phase, which would create a feeling of cold air blowing on the user and negatively impact their experience, leading to complaints, existing technology detects the activation or deactivation of the indoor heat exchanger when the air conditioner enters heating mode. For example, when the air conditioner is turned on to enter heating mode, the air deflector is kept at its maximum opening angle. Because the airflow blowing into the room is relatively cold at the initial stage of compressor startup, it feels like cold air blowing on people, reducing their experience.

[0055] In this embodiment, after the air conditioner starts the heating mode, the current temperature of the indoor heat exchanger of the air conditioner is obtained.

[0056] Optionally, in practical applications, the air conditioner can activate its heating mode based on a user's command or its operating parameters. In some scenarios, activating the heating mode based on user input can be achieved by the user issuing a command to start the heating mode via the air conditioner remote control, or by the user issuing a command via a wireless communication terminal device or smart home appliance. Wireless communication methods include one or more of WiFi, ZigBee, and Bluetooth connections. In other scenarios, the air conditioner can activate its heating mode after detecting that the indoor temperature has reached the set temperature (30°C), then automatically re-activate the heating mode upon detecting that the indoor temperature has reached the set temperature (26°C) again. This prevents the indoor temperature from becoming too low and ensures that the indoor temperature meets the user's requirements.

[0057] Optionally, in this embodiment, the current temperature of the indoor heat exchanger can be obtained through a temperature sensor.

[0058] Step S20: When the temperature is less than or equal to the preset temperature, adjust the opening angle of the air guide plate to the first preset angle and start the indoor fan. The first preset angle is the minimum opening angle of the air guide plate.

[0059] The preset temperature is a pre-defined value that determines the opening angle of the air deflector on the air conditioner. It can be set by the user based on actual usage or automatically adjusted based on acquired environmental parameters. For example, after starting heating mode, the indoor temperature is acquired. If the indoor temperature is higher than the preset indoor temperature (e.g., 10 degrees Celsius), the preset temperature is set to 31°C; if the indoor temperature is lower than the preset indoor temperature, the preset temperature is set to 29°C. This means that a higher preset temperature is set when the indoor temperature is high to prevent the blown-out air from being colder than the indoor temperature, thus avoiding the phenomenon of cold air being blown out. With the preset temperature set to 32°C, when the air conditioner detects that the current temperature of the indoor heat exchanger is less than or equal to the preset temperature, the air deflector opens at an angle of 10 degrees. During the initial heating phase, controlling the opening angle of the air deflector disperses the generated cooler air into the indoor space, preventing it from being blown in gusts and causing cold air to be blown out.

[0060] Optionally, the angle of the air guide plate can also be determined based on the obtained indoor temperature. When the obtained indoor temperature is high, the first preset angle of the air guide plate is set to a larger value (e.g., 5 degrees); when the obtained indoor temperature is low, the first preset angle of the air guide plate is set to a larger value (7 degrees). By setting the relationship between the indoor temperature and the preset angle, the temperature of the air blown into the room by the air conditioner is close to the indoor temperature, thus avoiding the phenomenon of blowing cold air.

[0061] Optionally, in this application, the relationship between indoor temperature and the first preset angle can be set to a linear relationship, that is, the correspondence between different indoor temperatures and the first preset angle can be obtained. Therefore, when the air conditioner determines the indoor temperature, the corresponding first preset angle can be obtained, thereby adjusting the air guide plate and achieving stepless adjustment of the air guide plate angle.

[0062] In this embodiment, a ceiling-mounted air conditioner is used as an example for illustration.

[0063] In this embodiment, when the current temperature of the indoor heat exchanger obtained by the ceiling-mounted air conditioner is less than or equal to a preset temperature, the opening angle of the air guide vane is controlled to a first preset angle. The first preset angle is the minimum angle at which the air guide vane opens, for example, 5 degrees. At this first preset angle, the air blown into the room by the air conditioner disperses around the air conditioner, preventing the low-temperature air from being blown into the room in a concentrated stream during the initial stage of heating mode. If there are users below the air conditioner, the air blown into the room will be cold, causing user complaints. Especially in large conference rooms with high population density, the opening angle of the air guide vane needs to be controlled during the initial stage of the air conditioner's heating mode to prevent cold air from blowing into people and improve the user experience.

[0064] Optionally, in this embodiment, the indoor fan is activated when the current temperature of the indoor heat exchanger is greater than a predetermined temperature. The minimum predetermined temperature is set to 27°C, and the preset temperature is greater than the predetermined temperature. That is, in this application, the minimum predetermined temperature is further set to 27°C, increasing the current temperature at which the air conditioner activates the indoor fan and opens the air deflector. By increasing the predetermined value, the temperature of the incoming indoor air is controlled to be greater than the temperature at which the fan is activated and the air deflector is opened in the prior art. This ensures that when the current temperature of the indoor heat exchanger is high, the air deflector is opened and the indoor fan is activated to introduce air into the room, increasing the temperature of the introduced air and further preventing cold air from blowing in.

[0065] In this embodiment, after the air conditioner starts the heating mode, the current temperature of the indoor heat exchanger of the air conditioner is obtained. When it is determined that the current temperature of the indoor heat exchanger is less than or equal to the preset temperature, the opening angle of the air guide plate is adjusted to the first preset angle. At the first preset angle, the air guide plate disperses the air blown by the air conditioner into the room to the surroundings of the air conditioner, avoiding the phenomenon of air blowing into the room in gusts, causing the user to feel cold air.

[0066] Furthermore, referring to Figure 4 , Figure 4 This is a schematic flowchart of another embodiment of the control method for the air conditioner of this application.

[0067] After the step of obtaining the current temperature of the indoor heat exchanger of the air conditioner, the method further includes:

[0068] Step S30: When the current temperature is greater than the preset temperature, adjust the opening angle of the air guide plate to a second preset angle, wherein the second preset angle is greater than the first preset angle.

[0069] In this embodiment, when the current temperature of the indoor heat exchanger is greater than the preset temperature, the opening angle of the air guide plate is adjusted to a second preset angle, wherein the second preset angle is greater than the first preset angle.

[0070] Optionally, in this embodiment, the second preset angle can be set to a specific angle, or it can be set to an adjustable range. For example, when the first preset angle is 10 degrees, the second preset angle is 20 degrees, or any value within the range of 15 degrees to 90 degrees.

[0071] Optionally, when the current temperature is higher than the preset temperature, a second preset angle can be determined based on the difference between the coil temperature and the preset temperature. For example, if the difference between the current temperature and the preset temperature (current temperature minus preset temperature) is ▽1 equal to 5°C, the angle of the air guide vane is increased by 10 degrees, meaning the angle of the air guide vane is increased by 10 degrees from its original open position; if the difference between the current temperature and the preset temperature (current temperature minus preset temperature) is ▽2 equal to 10°C, the angle of the air guide vane is increased by 20 degrees. This allows the opening angle of the air guide vane to be controlled according to the current temperature of the indoor heat exchanger. When the current temperature of the indoor heat exchanger rises, the opening angle of the air guide vane is opened to the maximum angle for supplying air into the room, enabling the air conditioner to supply air into the room at the maximum angle, thus improving the speed of indoor temperature rise.

[0072] Furthermore, based on the previous embodiment, this application proposes yet another embodiment.

[0073] After the step of adjusting the opening angle of the air guide plate to the first preset angle, the method further includes:

[0074] Step S40: Obtain the running time of the heating mode;

[0075] Step S50: When the duration exceeds the preset duration, increase the opening angle of the air guide plate.

[0076] In this embodiment, the running time of the heating mode is obtained, and when the running time of the heating mode is longer than the preset time, the air conditioner is controlled to increase the opening angle of the air guide plate.

[0077] Optionally, the runtime can be set to 30 seconds. If the runtime of the air conditioner in heating mode exceeds 30 seconds, the opening angle of the air deflector will be increased (e.g., by 10 degrees). Understandably, after starting heating mode, the fixed-frequency compressor starts, raising the refrigerant temperature and delivering it to the room. After the fixed-frequency compressor has been running for a certain period (preset duration), once the refrigerant temperature of the air conditioner is confirmed to have reached a comfortable temperature, the opening angle of the air deflector will be increased.

[0078] Optionally, in this embodiment, the value of increasing the angle can be determined based on the time the air conditioner operates in heating mode. For example, if the air conditioner operates in heating mode for 2 minutes, the angle of the air guide plate is increased by 20°; if the air conditioner operates in heating mode for 4 minutes, the angle of the air guide plate is increased by 30°.

[0079] In this embodiment, the opening angle of the air guide vane can be adjusted based on the obtained running time of the air conditioner. This ensures that when the running time in heating mode reaches a preset duration, the opening angle of the air guide vane is controlled to a second preset angle. By increasing the opening angle of the air guide vane, more refrigerant with increased temperature is introduced into the room, achieving a rapid increase in indoor temperature.

[0080] Reference Figure 5 , Figure 5 This is a schematic flowchart of another embodiment of the control method for the air conditioner of this application.

[0081] After adjusting the opening angle of the air guide vane to the second preset angle, the following steps are also included:

[0082] Step S60: Obtain the indoor temperature of the environment where the air conditioner is located;

[0083] Step S70: When it is determined that the indoor temperature is greater than the indoor temperature threshold, the compressor of the air conditioner is turned off, and the angle of the air guide plate is adjusted to the first preset angle.

[0084] The indoor temperature threshold is a preset temperature value for controlling the air conditioner to shut down the compressor. It can be set by the user or left as the factory default setting.

[0085] Optionally, in this embodiment, the indoor temperature threshold is the temperature set by the user that best meets their comfort expectations (e.g., 27℃-29℃). The air conditioner obtains the indoor temperature in real time through a temperature sensor installed in the room and compares the obtained indoor temperature with the indoor temperature threshold. Based on the comparison result, it determines whether to shut down the compressor. When the indoor temperature is higher than the indoor temperature threshold, the air conditioner's compressor is turned off to prevent the indoor temperature from becoming too high, thus improving user satisfaction with the air conditioner.

[0086] When the air conditioner shuts off the compressor, the air guide plate is adjusted from the second preset angle to the first preset angle. At the first preset angle, the air guide plate blocks most of the air outlet from the air duct, preventing the indoor fan from blowing a large amount of air into the room along the air duct when the air guide plate is open at the second preset angle after the compressor is shut off, thus preventing cold air from blowing directly onto the user.

[0087] In this embodiment, when the indoor temperature exceeds the indoor temperature threshold, the compressor is turned off to prevent excessive heat and maintain the indoor temperature within the user's expected range, thus improving user comfort. Furthermore, after turning off the compressor, the air deflector is simultaneously adjusted to a first preset angle to prevent a large amount of cold air from blowing directly onto the user, avoiding user complaints.

[0088] After the steps of turning off the compressor of the air conditioner and adjusting the angle of the air guide plate to a first preset angle, the method further includes:

[0089] Step S80: Obtain the shutdown duration of the compressor;

[0090] Step S90: When the shutdown duration is longer than the preset shutdown duration, the indoor fan is turned off.

[0091] In this embodiment, when the compressor is turned off, a timer is started to obtain the compressor's off duration. When the compressor's off duration is longer than the preset off duration, the indoor fan is turned off.

[0092] Optionally, in this embodiment, the preset shutdown duration can be determined based on the time from starting the heating mode to shutting off the air conditioner's compressor. When the duration is long, the value of the preset shutdown duration is larger, meaning the indoor fan continues to run for a longer period after the compressor shuts off. Therefore, when controlling the first preset angle of the air guide plate, by controlling the indoor fan to continue running, the refrigerant in the duct is discharged from the duct, preventing residual refrigerant in the duct from affecting the adjustment of the air guide plate after the air conditioner restarts the heating mode.

[0093] In this embodiment, the indoor fan is kept running after the compressor stops, and the refrigerant in the duct is delivered to the room, which improves the adjustment accuracy of the air guide plate after the air conditioner restarts the heating mode.

[0094] Reference Figure 6 , Figure 6 This is a schematic flowchart of another embodiment of the control method for an air conditioner according to this application. The air conditioner includes an electronic expansion valve, and after the step of obtaining the current temperature of the indoor heat exchanger of the air conditioner, the method includes:

[0095] Step S100: When the current temperature of the indoor heat exchanger is less than or equal to the preset temperature, control the opening degree of the electronic expansion valve to the first opening degree.

[0096] Step S110: When the current temperature of the indoor heat exchanger is greater than the preset temperature, control the opening degree of the electronic expansion valve to a second opening degree, wherein the first opening degree is less than the second opening degree.

[0097] In this embodiment, the current temperature of the indoor heat exchanger is obtained. When the current temperature of the indoor heat exchanger is lower than a preset temperature, the opening degree of the electronic expansion valve of the air conditioner is controlled to a first opening degree (e.g., the first opening degree is 100 steps). That is, when the current temperature of the indoor heat exchanger is less than or equal to the preset temperature, it prevents the large amount of refrigerant in the air duct of the air conditioner from causing the temperature at the air duct outlet to rise slowly. When the current temperature of the indoor heat exchanger is greater than the preset temperature, the opening degree of the electronic expansion valve is controlled to a second opening degree (e.g., the second opening degree is 200 steps). At the second opening degree, a large amount of refrigerant with a raised temperature is delivered into the room to achieve the effect of rapidly raising the indoor temperature.

[0098] In this embodiment, when the current temperature of the indoor heat exchanger is less than or equal to the preset temperature, the opening of the electronic expansion valve is controlled to the first preset opening to prevent a large amount of low-temperature refrigerant from being blown directly into the room before it has been heated up, thus avoiding cold air. When the current temperature of the indoor heat exchanger is greater than the preset temperature, the opening of the electronic expansion valve is controlled to the second preset opening to allow a large amount of heated refrigerant to enter the room through the air duct outlet, thereby achieving the effect of rapidly increasing the indoor temperature.

[0099] Reference Figure 7 , Figure 7 This is a schematic flowchart of another embodiment of this application. The air conditioner includes an indoor fan, and after obtaining the current temperature of the indoor heat exchanger of the air conditioner, it further includes:

[0100] Step S120: Obtain the rotational speed corresponding to the temperature range where the current temperature of the indoor heat exchanger is located;

[0101] Step S130: Control the indoor fan to run at the specified speed. The higher the temperature corresponding to the temperature range, the greater the speed corresponding to the temperature range.

[0102] In this embodiment, after the air conditioner starts the heating mode, the current temperature of the indoor heat exchanger is obtained, and the temperature range in which the current temperature is located is determined. Then, the corresponding speed is determined according to the temperature range, and the indoor fan is controlled to run at the determined speed.

[0103] Optionally, in this embodiment, a mapping table between temperature ranges and the corresponding indoor fan speeds is first set, as shown in Table 1 below:

[0104] Table 1

[0105] Temperature range (°C) Rotational speed (r / s) X＜25 0 25≤X＜28 10 28≤X＜32 30 32≤X 50

[0106] When the current temperature of the indoor heat exchanger is 24 degrees Celsius, which is lower than the preset minimum temperature for starting the indoor fan, the indoor fan is controlled to remain stopped. When the current temperature of the indoor heat exchanger is 29 degrees Celsius, which is lower than the preset minimum temperature for starting the indoor fan, the indoor fan speed is controlled to be 30 r / s. When the current temperature of the indoor heat exchanger is 29 degrees Celsius, which is lower than the preset minimum temperature for starting the indoor fan, the indoor fan speed is controlled to be 50 r / s.

[0107] In this embodiment, upon obtaining the current temperature of the indoor heat exchanger, the current temperature range of the indoor heat exchanger is determined, thereby obtaining the rotational speed of the indoor fan. This achieves the following: in the initial stage of starting the heating mode, the indoor fan speed is controlled to operate at a lower speed to avoid a large amount of low-temperature refrigerant entering the room through the duct outlet. When the current temperature of the indoor heat exchanger reaches the preset temperature, the indoor fan speed is increased according to the temperature range in which the current temperature of the indoor heat exchanger falls, so that the current temperature of the indoor heat exchanger matches the rotational speed of the indoor fan. This improves the comfort of delivering the heated refrigerant to the room through the duct and increases the speed of indoor heating.

[0108] To more clearly illustrate the inventive concept of this invention, a specific example is provided below.

[0109] Reference Figure 8 , Figure 8 This is a schematic diagram illustrating the inventive concept of the control method for the air conditioner of this application.

[0110] After the air conditioner is turned on, the operating mode of the air conditioner is determined. When the operating mode is a non-heating mode (e.g., cooling mode), the angle of the air deflector of the air conditioner is controlled according to the cooling angle.

[0111] When the air conditioner's operating mode is determined to be heating mode, and the air conditioner is in the initial heating start-up phase, after the compressor reaches the preset temperature and stops running in heating mode, and re-enters heating mode after defrosting, the current temperature T2 of the indoor heat exchanger is obtained in the first 5 minutes after the compressor starts. When the current temperature T2 of the indoor heat exchanger is less than or equal to the preset temperature TE1 (32℃), the angle of the air guide is set to the first preset angle, which is the minimum angle of the heating air guide swing. When the current temperature T2 of the indoor heat exchanger is greater than the preset temperature TE1 (32℃), the angle of the air guide is set to the second preset angle, which is the angle set by the user and is greater than the first preset angle.

[0112] After the air conditioner reaches the set temperature and stops, or during the protection shutdown phase, the angle of the air guide is controlled to the first preset angle.

[0113] When the air conditioner is in the heating off stage, the angle of the air guide vanes is adjusted to the first preset angle, and the indoor fan speed is operated according to the anti-cold air rule (the corresponding fan speed is determined according to the current temperature range of the indoor heat exchanger).

[0114] In addition, to achieve the above objectives, this application also provides an air conditioner, including a memory, a processor, and an air conditioner control program stored in the memory and executable on the processor. When the processor executes the air conditioner control program, it implements the air conditioner control method as described above.

[0115] In addition, to achieve the above objectives, this application also provides a computer-readable storage medium storing an air conditioner control program thereon, which, when executed by a processor, implements the air conditioner control method as described in any of the preceding claims.

[0116] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0117] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0118] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0119] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0120] It should be noted that any reference signs placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. This application can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words target, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0121] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0122] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of the invention. Therefore, if these modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include these modifications and variations.

Claims

1. A control method for an air conditioner, characterized in that, The control method for the air conditioner includes the following steps: After the air conditioner starts heating mode, the current temperature of the indoor heat exchanger of the air conditioner is obtained; When the current temperature is less than or equal to the preset temperature, the opening angle of the air guide plate is adjusted to the first preset angle, and the indoor fan is started. The first preset angle is the minimum opening angle of the air guide plate. When the current temperature is greater than the preset temperature, the opening angle of the air guide plate is adjusted to a second preset angle, wherein the first preset angle is 10 degrees and the second preset angle is 20 degrees. When the difference between the current temperature and the preset temperature is equal to 5°C, the angle of the air guide plate is increased by 10 degrees; when the difference between the current temperature and the preset temperature is equal to 10°C, the angle of the air guide plate is increased by 20 degrees. Obtain the indoor temperature of the environment where the air conditioner is located; When the indoor temperature is determined to be greater than the indoor temperature threshold, the compressor of the air conditioner is turned off, and the angle of the air guide plate is adjusted to the first preset angle. When the air guide plate is adjusted to the first preset angle, the indoor fan is controlled to continue running to discharge the refrigerant in the air duct. Obtain the shutdown duration of the compressor; When the shutdown duration exceeds the preset shutdown duration, the indoor fan is turned off.

2. The control method for an air conditioner as described in claim 1, characterized in that, After the step of adjusting the opening angle of the air guide plate to the first preset angle, the method further includes: Obtain the runtime of the heating mode; When the duration exceeds the preset duration, the opening angle of the air guide plate is increased.

3. The control method for an air conditioner as described in claim 1, characterized in that, The air conditioner includes an electronic expansion valve, and after the step of obtaining the current temperature of the indoor heat exchanger of the air conditioner, the following steps are included: When the current temperature of the indoor heat exchanger is less than or equal to the preset temperature, the opening degree of the electronic expansion valve is controlled to be the first opening degree. When the current temperature of the indoor heat exchanger is greater than the preset temperature, the opening degree of the electronic expansion valve is controlled to be a second opening degree, where the first opening degree is less than the second opening degree.

4. The control method for an air conditioner as described in claim 1, characterized in that, The air conditioner includes an indoor fan, and after obtaining the current temperature of the indoor heat exchanger of the air conditioner, it further includes: Obtain the rotational speed corresponding to the temperature range in which the current temperature of the indoor heat exchanger falls; The indoor fan is controlled to operate at the specified speed. The higher the temperature corresponding to the specified temperature range, the greater the speed corresponding to the specified temperature range.

5. An air conditioner, characterized in that, The device includes a memory, a processor, and a control program for an air conditioner stored in the memory and executable on the processor. When the processor executes the control program for the air conditioner, it implements the control method for the air conditioner according to any one of claims 1-4.

6. A computer-readable storage medium, characterized in that, It stores the control program of the air conditioner, which, when executed by the processor, implements the control method of the air conditioner according to any one of claims 1-4.

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