Control Method of Air Conditioner, Air Conditioner and Computer Readable Storage Medium

Abstract

The present invention discloses a control method for an air conditioner, an air conditioner and a computer-readable storage medium, relating to the technical field of air conditioning equipment. The air conditioner includes an indoor unit, and the control method includes: when the operating state of the indoor unit is the windless feeling mode, obtaining the indoor environmental humidity; obtaining the return air temperature of the indoor unit; obtaining the indoor dew point temperature; when the indoor environmental humidity is greater than the first preset humidity and the return air temperature is less than the indoor dew point temperature, controlling the indoor unit to increase the outlet air temperature. Since the humidity of the indoor environment has a great influence on whether the air conditioner condenses, by detecting the magnitudes of the indoor environmental humidity, the return air temperature of the indoor unit and the indoor dew point temperature and comparing them, the accuracy of detecting whether the air conditioner is about to condense is improved, making the anti-condensation treatment of the air conditioner more reasonable and reducing the impact on the normal operation of the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular, to a control method for an air conditioner, an air conditioner, and a computer-readable storage medium. Background Art

[0002] When the air conditioner in the related art operates in the windless feeling mode, the air flow speed at the air outlet of the air conditioner is relatively slow. In the ordinary refrigeration mode, the air conditioner generally judges whether to perform the anti-condensation treatment by detecting the ambient temperature, the heat exchanger pipe temperature, and the compressor operation time. However, this judgment method is difficult to make the air conditioner reasonably enter the anti-condensation treatment. Especially when the air conditioner operates in the windless feeling mode, frequently entering the anti-condensation treatment will affect the refrigeration effect of the air conditioner and the user experience. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a control method for an air conditioner, which can more accurately judge whether to perform the anti-condensation treatment according to multiple parameters and reduce the impact on the normal operation of the air conditioner.

[0004] The present invention also provides an air conditioner using the above control method for an air conditioner.

[0005] According to a control method for an air conditioner according to an embodiment of the first aspect of the present invention, the air conditioner includes an indoor unit, and the control method includes: when the operating state of the indoor unit is the windless feeling mode, obtaining the indoor environmental humidity; obtaining the return air temperature of the indoor unit; obtaining the indoor dew point temperature; when the indoor environmental humidity is greater than a first preset humidity and the return air temperature is less than the indoor dew point temperature, controlling the indoor unit to increase the air outlet temperature.

[0006] The control method for an air conditioner according to an embodiment of the present invention has at least the following beneficial effects: Since the humidity level of the indoor environment has a great influence on whether the air conditioner condenses, by detecting the indoor environmental humidity, the return air temperature of the indoor unit, and the indoor dew point temperature, and comparing them, the accuracy of detecting whether the air conditioner is about to condense is improved, making the air conditioner perform the anti-condensation treatment more reasonably and reducing the impact on the normal operation of the air conditioner.

[0007] According to some embodiments of the present invention, after controlling the indoor unit to increase the air outlet temperature, the control method further includes: obtaining the air outlet temperature of the indoor unit; when the difference between the air outlet temperature and the indoor dew point temperature is greater than a first preset temperature, controlling the indoor unit to maintain the air outlet temperature for a first preset duration; after the first preset duration, controlling the indoor unit to decrease the air outlet temperature.

[0008] According to some embodiments of the present invention, the air conditioner further includes an outdoor unit provided with a compressor, and the indoor unit is provided with an electronic expansion valve; controlling the indoor unit to increase the outlet air temperature includes: calculating a target evaporation temperature of the indoor unit according to the indoor dew point temperature; and performing at least one of adjusting the operating frequency of the compressor and adjusting the opening degree of the electronic expansion valve according to the target evaporation temperature to increase the outlet air temperature.

[0009] According to some embodiments of the present invention, obtaining the indoor dew point temperature includes: obtaining the location information of the air conditioner; obtaining the meteorological information of the location where the air conditioner is located according to the location information; and obtaining the indoor dew point temperature according to the meteorological information.

[0010] According to some embodiments of the present invention, obtaining the indoor dew point temperature includes: calculating the indoor dew point temperature according to the return air temperature and the indoor environmental humidity.

[0011] According to some embodiments of the present invention, the control method further includes: when the indoor environmental humidity is less than or equal to a first preset humidity, or the return air temperature is greater than or equal to the indoor dew point temperature, maintaining the current operating state of the indoor unit.

[0012] An air conditioner according to an embodiment of the second aspect of the present invention includes an indoor unit, and the air conditioner further includes: an acquisition module for acquiring the indoor environmental humidity, the return air temperature of the indoor unit, and the indoor dew point temperature; and a control module for controlling the indoor unit to increase the outlet air temperature when the operating state of the indoor unit is the no-wind-sensation mode, the indoor environmental humidity is greater than the first preset humidity, and the return air temperature is less than the indoor dew point temperature.

[0013] According to some embodiments of the present invention, the acquisition module is further configured to acquire the outlet air temperature of the indoor unit; the control module is further configured to control the indoor unit to maintain the outlet air temperature for a first preset duration when the difference between the outlet air temperature and the indoor dew point temperature is greater than a first preset temperature, and to control the indoor unit to decrease the outlet air temperature after the first preset duration has elapsed.

[0014] An air conditioner according to an embodiment of the third aspect of the present invention includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, the control method of the air conditioner according to the first aspect embodiment is implemented.

[0015] A computer-readable storage medium according to an embodiment of the fourth aspect of the present invention stores computer-executable instructions for executing the control method of the air conditioner according to the first aspect embodiment.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the drawings and embodiments, where:

[0018] Figure 1 is a flowchart of a control method for an air conditioner according to an embodiment of the present invention;

[0019] Figure 2 is a flowchart of a control method for an air conditioner according to another embodiment of the present invention;

[0020] Figure 3 is a flowchart of raising the air outlet temperature according to an embodiment of the present invention;

[0021] Figure 4 is a flowchart of obtaining the indoor dew point temperature according to an embodiment of the present invention;

[0022] Figure 5 is a flowchart of obtaining the indoor dew point temperature according to another embodiment of the present invention;

[0023] Figure 6 is a flowchart of a control method for an air conditioner according to still another embodiment of the present invention;

[0024] Figure 7 is a flowchart of a control method for an air conditioner according to still another embodiment of the present invention;

[0025] Figure 8 is a module diagram of an air conditioner according to an embodiment of the present invention;

[0026] Figure 9 is a module diagram of an air conditioner according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where 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 by referring to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0028] In the description of the present invention, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as "setting", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0030] An embodiment of the present invention provides a control method for an air conditioner. It can be understood that the air conditioner includes an indoor unit and an outdoor unit, which are connected by a refrigerant pipe, and the indoor unit is located in an indoor space. The control method of the air conditioner according to the embodiment of the present invention is applicable when the operating state of the indoor unit is in the no-wind-sensation mode. It should be noted that the no-wind-sensation mode can be understood as one or more operating modes of the indoor unit. When the indoor unit is in the no-wind-sensation mode, the average air flow velocity of the air outlet of the indoor unit blowing air to the target area is generally not greater than 0.3 m / s, the blowing sensation index (DR value) of the full no-wind-sensation mode is not greater than 5%, and the blowing sensation index (DR value) of other no-wind-sensation modes is not greater than 10%. Therefore, when the indoor unit is in the no-wind-sensation mode, the air outlet is relatively gentle and the wind speed is low, so that the user cannot feel the air blowing from the air outlet, achieving the no-wind-sensation effect.

[0031] The no-wind-sensation mode can be achieved in the following several ways, but is not limited to the following. For example, by setting a microporous plate at the air outlet of the indoor unit, when the air conditioner is in the no-wind-sensation mode, the microporous plate at the air outlet is closed, so that the air blown out by the indoor unit passes through the microporous plate and then blows out. Through the micro-holes with different directions arranged on the microporous plate, the air flow blown out by the indoor unit is dispersed, reducing the air outlet speed of the indoor unit and achieving the no-wind-sensation effect. Another example is to set a wind-dispersing component at the air outlet of the indoor unit, so that the air blown out through the wind-dispersing component flows in a diffused manner, avoiding the air blowing directly from the air outlet in the same direction, and thus realizing the no-wind-sensation effect in the target area. Another example is that the indoor unit detects the distance between the user and the air conditioner, and adjusts the air speed of the air outlet according to the detected distance information, so that the air supply distance of the air outlet is less than the distance between the air conditioner and the user, thereby achieving the effect that the user does not feel the direct blowing of the air outlet and achieving the no-wind-sensation in the target area. How to make the air conditioner reach the no-wind-sensation mode is known to those skilled in the art and will not be elaborated here one by one.

[0032] When the operating state of the indoor unit of the air conditioner according to the embodiment of the present invention is in the no-wind-sensation mode, refer to Figure 1 and control the air conditioner to execute the control method of the air conditioner in steps S100 to S500.

[0033] S100, obtain the indoor environmental humidity, the return air temperature of the indoor unit, and the indoor dew point temperature;

[0034] Among them, the method for obtaining the indoor environmental humidity can be at least one of the following methods. By setting a humidity sensor at the air inlet of the indoor unit, when the humidity-sensitive element in the humidity sensor comes into contact with water vapor in the air, both the resistivity and resistance value of the humidity-sensitive element will change, and thus the indoor environmental humidity can be calculated; or the indoor unit obtains the humidity information collected by an electronic hygrometer independently placed indoors through a built-in wireless communication module. It can be understood that the purpose of the present invention is to prevent condensation from occurring on the indoor unit of the air conditioner. Therefore, the closer the obtained indoor environmental humidity value is to the humidity of the area where the indoor unit is located, the better. Therefore, the closer the electronic hygrometer is to the indoor unit, the better; or the indoor unit obtains the local humidity information detected by a reference ground meteorological observation station through a built-in wireless communication module. In the case where the indoor environment is connected to the outdoor environment, this humidity information can also be used as the indoor environmental humidity. Its setting method can be arbitrarily selected according to design requirements.

[0035] The return air temperature of the indoor unit is detected by a temperature sensor set at the return air inlet of the indoor unit, and the detected temperature value can be understood as the indoor environmental temperature. Therefore, it can be imagined that in some embodiments, the return air temperature of the indoor unit can also be obtained by a built-in wireless communication module in the indoor unit. By obtaining the indoor temperature value detected by an electronic thermometer placed indoors through the wireless communication module, and using this as the return air temperature of the indoor unit, the same effect can also be achieved.

[0036] The indoor dew point temperature is the temperature at which the air reaches saturation when the water vapor content in the air remains unchanged and the air pressure is constant. When the indoor temperature is less than the indoor dew point temperature, the air is in a supersaturated state, that is, the relative humidity of the indoor air is greater than 100% at this time. Under this environmental condition, it is easier for condensation to occur on the indoor unit of the air conditioner. The indoor dew point temperature can be calculated from the indoor environmental humidity and the return air temperature of the indoor unit, or the indoor unit can obtain the dew point temperature of the local area monitored by a reference ground meteorological observation station through a built-in wireless communication module, and use this as the indoor dew point temperature.

[0037] In a closed indoor environment, the indoor environmental humidity will gradually decrease as the air conditioner operates. Therefore, when the air conditioner starts to operate, it is easier for the indoor unit to condense. At this time, the indoor environmental humidity, environmental temperature, and dew point temperature are similar to those outside. Therefore, the method of obtaining the corresponding parameter information from the reference ground meteorological observation station is feasible and can effectively prevent condensation when the air conditioner starts up.

[0038] S200, the indoor environmental humidity is greater than the first preset humidity and the return air temperature is less than the indoor dew point temperature;

[0039] When the indoor environment humidity is greater than the first preset humidity, the indoor environment humidity is high at this time, and condensation is easy to occur in the indoor unit, that is, the air outlet frame or air outlet panel of the indoor unit is located near the air outlet and condensation is easy to occur, and the condensation water will be blown out through the air outlet or drip from the indoor unit to the indoor space, affecting the user experience. For example, the first preset humidity can be set to 40%. In some embodiments, the size of the first preset humidity can also be determined according to the specific structure of the indoor unit, the environmental humidity when condensation is easy to occur, and other parameters according to experiments. In order to improve the accuracy of detecting condensation in the indoor unit, when the return air temperature is less than the indoor dew point temperature, the indoor air is in an oversaturated state at this time, and condensation is more likely to occur in the indoor unit. The air outlet frame or air outlet panel of the indoor unit is located near the air outlet and condensation is more likely to occur. The indoor unit of this embodiment can more accurately judge the critical state of condensation in the indoor unit in the windless mode by judging the size of the indoor environment humidity and the return air temperature, thereby executing the subsequent anti-condensation program, so that the indoor unit can more reasonably enter the anti-condensation program to prevent condensation from occurring during operation of the indoor unit.

[0040] S300, controls the indoor unit to increase the air outlet temperature.

[0041] Since the indoor unit operates in the windless mode, the wind speed at the air outlet of the indoor unit is lower than that in the normal control mode. When the air outlet wind speed is low, condensation is more likely to occur at the air outlet of the indoor unit. Therefore, the indoor unit is controlled to increase the air outlet temperature so that the temperature at the air outlet of the indoor unit increases. When the temperature at the air outlet is higher than the dew point temperature, condensation is not easy to occur at the air outlet of the indoor unit, thereby preventing the condensation water generated at the air outlet of the indoor unit from being blown out through the outlet air or dripping from the indoor unit into the indoor space, affecting the user experience.

[0042] Through the control method of the air conditioner in the above embodiment, when the operating state of the indoor unit is the windless mode, by obtaining the indoor environmental humidity, return air temperature, indoor dew point temperature, and comparing and judging, the accuracy of judging whether condensation will occur in the indoor unit is improved, and condensation is prevented from occurring at the air outlet of the indoor unit, making it more reasonable for the indoor unit to perform anti-condensation processing, thereby reducing the impact on the cooling effect of the air conditioner.

[0043] Reference Figure 2 , a control method for an air conditioner according to another embodiment of the present invention. After controlling the indoor unit to increase the air outlet temperature, the control method for the air conditioner further includes:

[0044] S400, obtaining the air outlet temperature of the indoor unit;

[0045] S500, when the difference between the outlet air temperature and the indoor dew point temperature is greater than a first preset temperature, controlling the indoor unit to maintain the outlet air temperature for a first preset time period;

[0046] S600: After a first preset time has passed, the indoor unit is controlled to lower the air outlet temperature.

[0047] In step S400, the outlet air temperature is collected by a temperature sensor set at the air outlet of the indoor unit. After the indoor unit obtains the outlet air temperature, it is compared with the previously obtained indoor dew point temperature. Since step S300 is to control the indoor unit to increase the outlet air temperature, the outlet air temperature obtained at this time will be higher than the indoor dew point temperature. The first preset temperature is the temperature magnitude of the outlet air temperature higher than the indoor dew point temperature. For example, the first preset temperature is set to 1 to 2 degrees Celsius. As long as the outlet air temperature is slightly higher than the indoor dew point temperature, condensation is not easy to form at the air outlet of the indoor unit. It can be understood that the higher the first preset temperature, the better the anti-condensation effect of the indoor unit, but too high a first preset temperature will also affect the cooling effect of the air conditioner.

[0048] When it is detected that the difference between the outlet air temperature and the indoor dew point temperature is greater than the first preset temperature, the indoor unit will no longer increase the outlet air temperature, and the indoor unit will maintain the current outlet air temperature and maintain the first preset time. By maintaining the outlet air temperature continuously higher than the indoor dew point temperature for a period of time, condensation is prevented from occurring in the indoor unit during this period. After the first preset time of anti-condensation control, the indoor air humidity will decrease due to the continuous operation of the air conditioner, and the indoor dew point temperature will also decrease. At this time, the indoor unit is controlled to lower the outlet air temperature. When the outlet air temperature decreases, condensation is not likely to occur in the indoor unit. The outlet air temperature can be reduced to the temperature before the indoor unit increases the outlet air temperature, so that the indoor unit can continue to operate according to the original program setting. The first preset time can be pre-set according to parameters such as the operating power of the air conditioner and the size of the indoor space.

[0049] For example, the first preset duration is set to 30 minutes, the first preset temperature is set to 1 degree Celsius, the indoor dew point temperature is detected to be 22 degrees Celsius, the air outlet temperature of the indoor unit is 18 degrees Celsius in cooling mode, and when the air conditioner enters the windless mode and meets the trigger conditions of anti-condensation control, the air outlet temperature of the indoor unit is increased to 23 degrees Celsius and maintained at 23 degrees Celsius for 30 minutes. After 30 minutes, the air outlet temperature is lowered to 18 degrees Celsius.

[0050] Another embodiment of the air conditioner of the present invention further comprises a compressor and an electronic expansion valve, wherein the compressor is installed in the outdoor unit and the electronic expansion valve is installed in the indoor unit. Figure 3 ,include:

[0051] S311, calculating a target evaporation temperature of the indoor unit according to the indoor dew point temperature;

[0052] S312. Perform at least one of the following operations according to the target evaporation temperature: adjust the operating frequency of the compressor and adjust the opening degree of the electronic expansion valve, so as to increase the air outlet temperature.

[0053] It can be understood that the evaporation temperature is the temperature at which the refrigerant boils in the evaporator. When the evaporation temperature is increased, the air outlet temperature of the indoor unit will also increase accordingly. Therefore, according to the obtained indoor dew point temperature, the corresponding target evaporation temperature can be calculated, so that the air outlet temperature of the indoor unit can meet the requirements of anti-condensation treatment at the target evaporation temperature, that is, the air outlet temperature of the indoor unit is higher than the indoor dew point temperature, thereby preventing condensation from occurring at the air outlet of the indoor unit. According to the target evaporation temperature, the air conditioner can increase the evaporation temperature and thus increase the air outlet temperature of the indoor unit by adjusting the operating frequency of the compressor, adjusting the opening degree of the electronic expansion valve, etc.

[0054] Refer to Figure 4 In another embodiment of the control method of the air conditioner according to the embodiment of the present invention, the step of obtaining the indoor dew point temperature includes:

[0055] S111. Obtain the position information of the air conditioner;

[0056] S112. Obtain the meteorological information of the location where the air conditioner is located according to the position information;

[0057] S113. Obtain the indoor dew point temperature according to the meteorological information.

[0058] In step S111, there are various methods to obtain the position information of the air conditioner. For example, the position information of the area where the air conditioner is located can be obtained through a wireless positioning module set on the air conditioner, such as using satellite positioning, base station positioning or WIFI-assisted positioning technology; or the position information is pre-stored in the memory of the air conditioner, and the user manually selects the position information of the installation area of the air conditioner through the air conditioner remote control or control software, and uses this as the position information of the air conditioner during subsequent use.

[0059] Then, according to the obtained position information, through the wireless communication module on the air conditioner, obtain the meteorological information of the location where the air conditioner is located from the Internet. It can be understood that the meteorological information is generally detected from a reference ground meteorological observation station, and the meteorological information of the environment near the reference ground meteorological observation station is detected. Therefore, obtain the meteorological information of the reference ground meteorological observation station closest to the air conditioner.

[0060] Finally, obtain the indoor dew point temperature according to the obtained meteorological information. Generally, the meteorological information of the reference ground meteorological observation station will include the dew point temperature of the nearby environment, and the air conditioner screens out the dew point temperature in the obtained meteorological information as the indoor dew point temperature.

[0061] It can be understood that when the air conditioner starts to operate, the indoor environmental humidity, environmental temperature and dew point temperature are similar to those outside. Therefore, it is feasible to obtain the corresponding parameter information from the reference ground meteorological observation station. The obtained dew point temperature can quantitatively represent the corresponding indoor dew point temperature, and can be verified bidirectionally through the directly obtained indoor environmental humidity information, so as to accurately judge whether the air conditioner will condensate.

[0062] Some embodiments, referring to Figure 5 , the steps of obtaining the indoor dew point temperature include:

[0063] S121, according to the return air temperature and the indoor environmental humidity,

[0064] S122, calculate the indoor dew point temperature.

[0065] According to the previously detected return air temperature and indoor environmental humidity, through the processor in the air conditioner, calculate the indoor dew point temperature according to the pre-designed calculation rules. The dew point temperature calculated by this method is relatively accurate and can better reflect the dew point temperature information of the indoor space. It can be understood that the indoor environmental humidity can also be obtained from the meteorological information in the reference ground meteorological observation station. In some embodiments, the dew point temperature obtained from the reference ground meteorological observation station and the calculated dew point temperature can also be processed by weighted average to better reflect the indoor dew point temperature.

[0066] Referring to Figure 6 , the control method of the air conditioner according to another embodiment of the present invention further includes:

[0067] S700, the indoor environmental humidity is less than or equal to the first preset humidity, or the return air temperature is greater than or equal to the indoor dew point temperature;

[0068] S800, maintain the current operating state of the indoor unit.

[0069] Referring to Figure 7 , the air conditioner judges the obtained indoor environmental humidity, the return air temperature of the indoor unit and the indoor dew point temperature. When the judgment condition is not met, that is, when the air conditioner detects that the indoor environmental humidity is less than or equal to the first preset humidity, or the return air temperature is greater than or equal to the indoor dew point temperature, it means that the indoor environmental humidity is relatively low or the indoor temperature is relatively high at this time. At this time, it is not easy for the indoor unit to condensate, that is, the air conditioner does not need to perform anti-condensation treatment. Therefore, the indoor unit continues to maintain the current operating state and continues to operate in the normal windless mode, and the outlet air temperature remains unchanged.

[0070] Referring to Figure 8 , an embodiment of the present invention also proposes an air conditioner, including an indoor unit and an outdoor unit. The air conditioner further includes:

[0071] An acquisition module for acquiring the indoor environmental humidity, the return air temperature of the indoor unit, and the indoor dew point temperature;

[0072] A control module for controlling the indoor unit to increase the air outlet temperature when the operating state of the indoor unit is the windless feeling mode, the indoor environmental humidity is greater than the first preset humidity, and the return air temperature is less than the indoor dew point temperature.

[0073] Wherein, the acquisition module can communicate with a humidity sensor arranged at the air inlet of the indoor unit to acquire the indoor environmental humidity through the humidity sensor; or the acquisition module acquires the humidity information collected by an electronic hygrometer independently placed indoors in a wireless communication manner; or the acquisition module acquires the local humidity information monitored by a reference ground meteorological observation station through a built-in wireless communication module in the air conditioner.

[0074] The return air temperature of the indoor unit is detected by a temperature sensor arranged at the return air outlet of the indoor unit, and the detected temperature value is the indoor environmental temperature. The acquisition module is connected to the temperature sensor and receives the temperature information sent by it, and uses this as the return air temperature of the indoor unit.

[0075] The control module controls the indoor unit to execute as Figure 1 shown in the steps.

[0076] For the air conditioner proposed by the present invention, when the operating state of the indoor unit is the windless feeling mode, by acquiring the indoor environmental humidity, the return air temperature, and the indoor dew point temperature and making a comparison and judgment, the accuracy of judging whether the air conditioner will condensate is improved, the condensation of the air conditioner is prevented, and the anti-condensation treatment of the air conditioner is made more reasonable, reducing the influence on the normal operation of the air conditioner.

[0077] In another embodiment of the air conditioner according to the embodiment of the present invention, the acquisition module is further used to acquire the air outlet temperature of the indoor unit, and the control module is further used to control the indoor unit to maintain the air outlet temperature for a first preset duration when the difference between the air outlet temperature and the indoor dew point temperature is greater than a first preset temperature, and after the first preset duration, control the indoor unit to reduce the air outlet temperature.

[0078] Specifically refer to Figure 2, the acquisition module collects the outlet air temperature through a temperature sensor set at the air outlet of the indoor unit. After receiving the outlet air temperature, the control module compares it with the previously obtained indoor dew point temperature. Since step S300 is to control the indoor unit to increase the outlet air temperature, the outlet air temperature obtained at this time will be higher than the indoor dew point temperature. The first preset temperature is the temperature difference between the outlet air temperature and the indoor dew point temperature. In some embodiments, the first preset temperature is set to 1 to 2 degrees Celsius. As long as the outlet air temperature is slightly higher than the indoor dew point temperature, condensation is not likely to occur at the air outlet of the indoor unit. It can be understood that the larger the first preset temperature, the better the anti-condensation effect of the indoor unit, but it will also affect the refrigeration effect of the indoor unit.

[0079] When it is detected that the difference between the outlet air temperature and the indoor dew point temperature is greater than the first preset temperature, the indoor unit stops increasing the outlet air temperature. The indoor unit maintains the current outlet air temperature and sustains for the first preset duration. By maintaining the outlet air temperature continuously higher than the indoor dew point temperature for a period of time, condensation of the indoor unit during this period is prevented. After the anti-condensation control for the first preset duration, due to the continuous operation of the air conditioner, the air humidity in the room will decrease, and at the same time, the indoor dew point temperature will also decrease. At this time, the indoor unit is controlled to decrease the outlet air temperature. In the case of the decrease in the outlet air temperature, condensation is not likely to occur in the indoor unit, and the outlet air temperature can be decreased to the temperature before the indoor unit increased the outlet air temperature. The magnitude of the first preset duration can be preset according to parameters such as the operating power of the air conditioner and the size of the indoor space.

[0080] In another embodiment of the air conditioner according to the embodiment of the present invention, the control module is further configured to calculate the target evaporation temperature of the indoor unit according to the indoor dew point temperature; and perform at least one of adjusting the operating frequency of the compressor and adjusting the opening degree of the electronic expansion valve according to the target evaporation temperature to increase the outlet air temperature.

[0081] In another embodiment of the air conditioner according to the embodiment of the present invention, the control module is further configured to perform at least one of adjusting the operating frequency of the compressor and adjusting the opening degree of the electronic expansion valve according to the indoor environmental humidity and the return air temperature to increase the outlet air temperature.

[0082] In another embodiment of the air conditioner according to the embodiment of the present invention, the control module is further configured to obtain the position information of the air conditioner, obtain the meteorological information of the location where the air conditioner is located according to the position information, and then obtain the indoor dew point temperature according to the meteorological information.

[0083] In another embodiment of the air conditioner according to the embodiment of the present invention, the control module is further configured to calculate the indoor dew point temperature according to the return air temperature and the indoor environmental humidity.

[0084] In another embodiment of the air conditioner according to an embodiment of the present invention, the control module is further configured to maintain the current operating state of the indoor unit when the indoor environmental humidity is less than or equal to a first preset humidity, or the return air temperature is greater than or equal to the indoor dew point temperature.

[0085] Another embodiment of the present invention also provides an air conditioner. Referring to Figure 9 , it includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, it implements the control method of the air conditioner in the above embodiment.

[0086] In some embodiments, the present invention also provides a computer-readable storage medium storing computer-executable instructions for executing the control method of the air conditioner in the above embodiment.

[0087] In the description of the present invention, the descriptions with reference to terms such as "some embodiments", "examples", "specific examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0088] Those of ordinary skill in the art can understand that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and their appropriate combinations. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or a non-transitory medium) and a communication medium (or a transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, a communication medium typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0089] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the relevant art. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A control method for an air conditioner, the air conditioner including an indoor unit, characterized in that, The control method includes: When the operating state of the indoor unit is the draft-free mode, obtain the indoor environmental humidity; Obtain the return air temperature of the indoor unit; Obtain the indoor dew point temperature; When the indoor environmental humidity is greater than the first preset humidity and the return air temperature is less than the indoor dew point temperature, control the indoor unit to increase the outlet air temperature; Obtain the outlet air temperature of the indoor unit; When the difference between the outlet air temperature and the indoor dew point temperature is greater than the first preset temperature, control the indoor unit to maintain the outlet air temperature for a first preset duration; After the first preset duration has elapsed, control the indoor unit to decrease the outlet air temperature.

2. The control method of the air conditioner according to claim 1, characterized in that: The air conditioner further includes an outdoor unit, the outdoor unit is provided with a compressor, and the indoor unit is provided with an electronic expansion valve; The controlling the indoor unit to increase the outlet air temperature includes: Calculate the target evaporation temperature of the indoor unit according to the indoor dew point temperature; Perform at least one of adjusting the operating frequency of the compressor and adjusting the opening degree of the electronic expansion valve according to the target evaporation temperature to increase the outlet air temperature.

3. The control method of the air conditioner according to claim 1, wherein: The obtaining the indoor dew point temperature includes: Obtain the location information of the air conditioner; Obtain the meteorological information of the location where the air conditioner is located according to the location information; Obtain the indoor dew point temperature according to the meteorological information.

4. The control method of the air conditioner according to claim 1, characterized in that: The obtaining the indoor dew point temperature includes: Calculate the indoor dew point temperature according to the return air temperature and the indoor environmental humidity.

5. The control method of the air conditioner according to claim 1, wherein: The control method further includes: When the indoor environmental humidity is less than or equal to the first preset humidity, or the return air temperature is greater than or equal to the indoor dew point temperature, maintain the current operating state of the indoor unit.

6. An air conditioner, comprising an indoor unit, characterized in that, The air conditioner further includes: An acquisition module, configured to acquire the indoor environmental humidity, the return air temperature of the indoor unit, and the indoor dew point temperature; A control module, configured to control the indoor unit to increase the outlet air temperature when the operating state of the indoor unit is the draft-free mode, the indoor environmental humidity is greater than the first preset humidity, and the return air temperature is less than the indoor dew point temperature; Wherein, the acquisition module is further configured to acquire the outlet air temperature of the indoor unit; The control module is further configured to control the indoor unit to maintain the outlet air temperature for a first preset duration when the difference between the outlet air temperature and the indoor dew point temperature is greater than the first preset temperature, and after the first preset duration has elapsed, control the indoor unit to decrease the outlet air temperature.

7. An air conditioner, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the control method of the air conditioner according to any one of claims 1 to 5.

8. A computer-readable storage medium storing computer-executable instructions, characterized in that, The computer-executable instructions are used to execute the control method of the air conditioner according to any one of claims 1 to 5.

Images