Energy-saving control method applied to air conditioner, air conditioner, electronic device and storage medium

Abstract

This application discloses an energy-saving control method, air conditioner, electronic device, and storage medium for use in air conditioning, including: in response to the air conditioner entering defrost mode, acquiring current environmental parameters of the area where the air conditioner is located; wherein the current environmental parameters include at least one of current ambient humidity and current ambient temperature; determining a target operating frequency of the compressor based on the current environmental parameters; wherein the target operating frequency is lower than the rated operating frequency of the compressor in cooling mode; and controlling the compressor to operate at the target operating frequency to defrost the evaporator. This application achieves uninterrupted defrosting by adaptively reducing the frequency based on current environmental parameters, which can shorten defrosting time and reduce power loss while ensuring defrosting effect, thereby reducing the overall energy consumption of the air conditioner and extending its service life.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an energy-saving control method for air conditioning, an air conditioner, electronic equipment, and a storage medium. Background Technology

[0002] When an air conditioner is running for a long time, dust and other contaminants accumulate on the surface of the evaporator, which can affect heat exchange efficiency. Currently, self-cleaning technology is commonly used to clean the evaporator, which includes multiple stages such as condensation, frosting, and defrosting. The core principle is to remove contaminants through frosting and then discharge them with the condensate through defrosting.

[0003] In related technologies, self-cleaning is achieved through the following methods: The first method is to reduce the speed of the indoor fan and use humidification to achieve frosting, and then stop the machine and rely on ambient heat to defrost; the second method is to use the cooling mode to achieve frosting, then turn off the compressor and outdoor fan and turn on the indoor fan to defrost; the third method is to adjust the motor speed and the angle of the air guide vanes to achieve frosting, then turn on the electric heating and reverse the motor to defrost after stopping the machine, and complete the self-cleaning process by repeating the frosting-defrosting process.

[0004] However, all of the above methods require the compressor to be stopped during defrosting, which prolongs the defrosting time. At the same time, frequent start-stop of the compressor will increase additional power loss due to the surge in starting current, resulting in increased power consumption. Furthermore, there is a delay in restarting the compressor after it stops, which further prolongs the self-cleaning cycle and accelerates compressor wear. Summary of the Invention

[0005] This application provides an energy-saving control method, air conditioner, electronic device and storage medium for use in air conditioning, which helps to enable the compressor to run continuously during defrosting, thereby shortening the defrosting time and reducing compressor start-stop losses.

[0006] The first technical solution adopted in this application is to provide an energy-saving control method for air conditioners, including: in response to the air conditioner entering defrost mode, acquiring the current environmental parameters of the area where the air conditioner is located; wherein the current environmental parameters include at least one of the current environmental humidity and the current environmental temperature; determining the target operating frequency of the compressor based on the current environmental parameters; wherein the target operating frequency is lower than the rated operating frequency of the compressor in cooling mode; and controlling the compressor to operate at the target operating frequency to defrost the evaporator.

[0007] The step of determining the target operating frequency of the compressor based on the current environmental parameters includes: in response to the current ambient humidity being less than or equal to a preset humidity threshold, and / or the current ambient temperature being greater than or equal to a preset temperature threshold, determining the target operating frequency as a first operating frequency; wherein the first operating frequency is less than the rated operating frequency; in response to the current ambient humidity being greater than the preset humidity threshold, and / or the current ambient temperature being less than the preset temperature threshold, determining the target operating frequency as a second operating frequency; wherein the second operating frequency is less than the first operating frequency.

[0008] The step of determining the target operating frequency as the first operating frequency includes: calculating the first operating frequency based on a first proportional coefficient and the rated operating frequency; the step of determining the target operating frequency as the second operating frequency includes: calculating the second operating frequency based on a second proportional coefficient and the rated operating frequency; wherein the second proportional coefficient is less than the first proportional coefficient.

[0009] The step of determining the target operating frequency of the compressor based on the current environmental parameters includes: determining the target operating frequency as a first operating frequency in response to the current ambient humidity being less than or equal to a preset humidity threshold and the current ambient temperature being less than a preset temperature threshold; and determining the target operating frequency as a second operating frequency in response to the current ambient humidity being greater than the preset humidity threshold and the current ambient temperature being greater than or equal to the preset temperature threshold.

[0010] The step of controlling the compressor to operate at a target operating frequency to defrost the evaporator also includes: increasing the opening of the air conditioner's electronic expansion valve, and / or decreasing the speed of the air conditioner's outdoor fan.

[0011] The step of controlling the compressor to operate at a target operating frequency to defrost the evaporator includes: acquiring the coil temperature of the evaporator and detecting whether the coil temperature has reached a preset temperature; and determining that defrosting is complete in response to the coil temperature reaching the preset temperature and the duration of the coil temperature reaching the preset temperature being greater than or equal to a preset duration.

[0012] Before the step of obtaining the current environmental parameters of the area where the air conditioner is located in response to the air conditioner entering the defrosting mode, the steps include: in response to receiving a self-cleaning command, controlling the air conditioner to sequentially enter the condensation mode and the frosting mode to form a frost layer on the evaporator surface; after the frosting mode ends, controlling the air conditioner to enter the defrosting mode to defrost the frost layer formed on the evaporator surface.

[0013] The second technical solution adopted in this application is to provide an air conditioner, which is controlled by the energy-saving control method applied to the air conditioner described above.

[0014] The third technical solution adopted in this application is to provide an electronic device, including: a memory for storing program data, which, when executed, implements the steps in the energy-saving control method for air conditioners as described above; and a processor for executing the program data stored in the memory to implement the steps in the energy-saving control method for air conditioners as described above.

[0015] The fourth technical solution adopted in this application is to provide a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, it implements the steps in the energy-saving control method for air conditioners as described in any of the above claims.

[0016] The beneficial effects of this application are as follows: This application provides an energy-saving control method, air conditioner, electronic device, and storage medium for air conditioning. By acquiring the current environmental parameters of the area where the air conditioner is located when it enters defrost mode, and determining the target operating frequency of the compressor based on the current environmental parameters, and ensuring that the target operating frequency is lower than the compressor's rated operating frequency in cooling mode, the compressor frequency can be adaptively reduced according to environmental conditions to reduce power consumption during defrost and avoid compressor shutdown. By controlling the compressor to operate at the target operating frequency to defrost the evaporator, continuous compressor operation can be achieved during defrost, thereby shortening defrost time and reducing compressor start-up and shutdown losses. This application achieves uninterrupted defrosting by adaptively reducing the frequency based on current environmental parameters, which can shorten defrost time and reduce power loss while ensuring defrost effectiveness, thereby reducing overall air conditioner energy consumption and extending the service life of the air conditioner. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart illustrating the first embodiment of the energy-saving control method for air conditioners applied in this application; Figure 2 This is a flowchart illustrating the second embodiment of the energy-saving control method for air conditioners applied in this application; Figure 3 This is a flowchart illustrating the third embodiment of the energy-saving control method for air conditioners applied in this application; Figure 4 This is a flowchart of an application scenario of the energy-saving control method for air conditioning applied in this application; Figure 5 This is a schematic diagram of the structure of one embodiment of the electronic device of this application; Figure 6 This is a schematic diagram of one embodiment of the computer-readable storage medium of this application. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the foregoing clearly indicates otherwise.

[0021] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0022] It should be understood that the terms "comprising," "including," or any other variations used herein are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] In related technologies, self-cleaning is achieved through the following methods: The first method is to reduce the speed of the indoor fan and use humidification to achieve frosting, and then stop the machine and rely on ambient heat to defrost; the second method is to use the cooling mode to achieve frosting, then turn off the compressor and outdoor fan and turn on the indoor fan to defrost; the third method is to adjust the motor speed and the angle of the air guide vanes to achieve frosting, then turn on the electric heating and reverse the motor to defrost after stopping the machine, and complete the self-cleaning process by repeating the frosting-defrosting process.

[0024] However, the inventors discovered in further research that the above methods all require the compressor to be stopped during defrosting, which prolongs the defrosting time; at the same time, frequent start-stop of the compressor will increase additional power loss due to the starting current surge, resulting in increased power consumption; and there is a delay in restarting the compressor after it stops, which further prolongs the self-cleaning cycle and accelerates compressor wear.

[0025] Based on the above, this application provides an energy-saving control method, air conditioner, electronic device and storage medium for use in air conditioners, which can solve the problem that the defrosting time is long and the compressor start-stop loss is high when the compressor needs to be stopped during defrosting.

[0026] The energy-saving control method, air conditioner, electronic equipment, and storage medium disclosed in this application can be used in an air-source single-cooling control system.

[0027] Please see Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the energy-saving control method for air conditioners according to this application. In this embodiment, the energy-saving control method for air conditioners includes: S11: In response to the air conditioner entering defrost mode, obtain the current environmental parameters of the area where the air conditioner is located; wherein, the current environmental parameters include at least one of the current ambient humidity and the current ambient temperature.

[0028] In this embodiment, defrosting mode refers to the operating mode that melts the frost layer formed on the surface of the evaporator.

[0029] The evaporator refers to the heat exchanger in the indoor unit of an air conditioner. In cooling mode, it operates as an evaporator to absorb indoor heat.

[0030] The defrosting mode can be one stage in the self-cleaning process (including multiple stages such as condensation, frosting, and defrosting), or it can be a working mode in which the air conditioner operates independently.

[0031] In this embodiment, the current environmental parameters refer to the parameters that reflect the environmental status of the space in which the air conditioner is located, collected in real time by the built-in or external sensors of the air conditioner when the air conditioner enters defrost mode.

[0032] In this embodiment, the current ambient humidity refers to the relative humidity value of the air in the area where the air conditioner is located, collected by the humidity sensor when the air conditioner enters defrost mode.

[0033] The current ambient humidity is used to reflect the thickness of the frost layer that may form on the evaporator surface during the initial frosting process. Generally, the higher the current ambient humidity, the thicker the frost layer will be during the frosting process; the lower the current ambient humidity, the thinner the frost layer will be.

[0034] In some implementations, the current ambient humidity is collected in real time by a humidity sensor built into or connected to the air conditioner.

[0035] In some implementations, the air conditioner is a cooling-only type.

[0036] In some specific implementations, the defrosting mode is the defrosting stage within the self-cleaning process. After the air conditioner completes the frosting stage, a certain thickness of frost has formed on the evaporator surface. At this point, the controller of a single-cooling air conditioner automatically triggers the entry into defrosting mode. The compressor does not stop but instead switches to the control logic of the defrosting stage. When entering defrosting mode, the current ambient humidity of the space where the air conditioner is located is collected in real time by the humidity sensor built into the air conditioner. Since the amount of frost on the evaporator surface is positively correlated with the humidity of the air flowing through the evaporator during the initial frosting stage, the current ambient humidity can be used as a basis for predicting the thickness of the frost layer on the evaporator surface: the higher the humidity, the thicker the frost layer; the lower the humidity, the thinner the frost layer.

[0037] In this embodiment, the current ambient temperature refers to the air temperature value of the area where the air conditioner is located, collected by the temperature sensor when the air conditioner enters defrost mode.

[0038] The current ambient temperature is used to reflect the thickness of the frost layer that may form on the evaporator surface during the initial frosting process. At high temperatures, the frost layer on the evaporator surface is relatively thin; at low temperatures, the frost layer is relatively thick.

[0039] In some implementations, the current ambient temperature is collected in real time using a temperature sensor built into or connected to the air conditioner.

[0040] In some specific implementations, the defrosting mode is the defrosting stage of the self-cleaning process. After the air conditioner completes the frosting stage, a certain thickness of frost has formed on the evaporator surface. At this point, the controller of the single-cooling air conditioner automatically triggers the entry into defrosting mode. The compressor does not stop but switches to the control logic of the defrosting stage. When entering defrosting mode, the current ambient temperature of the space where the air conditioner is located is collected in real time by the temperature sensor built into the air conditioner. Since the frosting rate on the evaporator surface is negatively correlated with the ambient temperature during the initial frosting stage, the lower the ambient temperature, the easier it is for the evaporator surface temperature to drop below freezing point, the faster the frosting rate, and the thicker the frost layer; conversely, the higher the ambient temperature, the slower the frosting rate, and the thinner the frost layer. Therefore, the current ambient temperature can be used as a basis for predicting the thickness of the frost layer on the evaporator surface: the higher the temperature, the thinner the frost layer; the lower the temperature, the thicker the frost layer.

[0041] In this application, the current ambient humidity and the current ambient temperature can be used as the sole basis for judgment, or the two can be combined for judgment.

[0042] For example, when judging solely by the current ambient humidity, the lower the humidity, the thinner the frost layer, and the higher the humidity, the thicker the frost layer; when judging solely by the current ambient temperature, the higher the temperature, the thinner the frost layer, and the lower the temperature, the thicker the frost layer.

[0043] When both are used for judgment, humidity is the primary factor and temperature is the secondary factor. That is, when the humidity is low, higher temperature can further confirm the condition of thin frost; when the humidity is high, lower temperature can further confirm the condition of thick frost, thereby further improving the accuracy of frost thickness prediction.

[0044] Specifically, during the frosting stage, the formation of frost on the evaporator surface mainly depends on the condensation and freezing of water vapor in the air. Ambient humidity directly determines the amount of usable water vapor in the air and is the primary determinant of frost thickness. Higher humidity provides more water vapor for condensation, resulting in a thicker frost layer; lower humidity, even at low temperatures, limits the amount of water vapor in the air, making it difficult for the frost layer to thicken significantly. Ambient temperature primarily affects the frosting rate. At lower temperatures, the evaporator surface is more likely to drop below freezing, leading to faster condensation and freezing of water vapor; at higher temperatures, the frosting rate is relatively slower. In other words, the effect of temperature on the final frost thickness is indirect. If the ambient humidity is low, even at low temperatures, the frost thickness will still be limited. For example, under conditions of high humidity and low temperature, a thicker and more complete frost layer is likely; if both humidity and temperature are high, the frost layer may have some thickness but may not be densely packed. Conversely, under conditions of low humidity, the frost layer will be thin regardless of temperature.

[0045] Understandably, the current ambient humidity can be used as the primary indicator to accurately determine the basic thickness range of the frost layer. By combining this with the current ambient temperature for further assessment, the frost layer thickness can be predicted more accurately, thus providing a more reliable basis for determining the subsequent frequency reduction range.

[0046] Understandably, by acquiring the current environmental parameters of the area where the air conditioner is located when it enters defrost mode, the humidity level of the environment can be sensed in real time. Furthermore, since ambient humidity is positively correlated with the thickness of the frost layer on the evaporator surface, and ambient temperature is negatively correlated with the thickness of the frost layer, acquiring the current ambient humidity and / or current ambient temperature can provide a basis for subsequently predicting the frost layer thickness to determine the appropriate frequency reduction range, thereby avoiding problems such as incomplete defrosting or excessive energy consumption due to inappropriate frequency reduction.

[0047] S12: Determine the target operating frequency of the compressor based on the current environmental parameters; wherein the target operating frequency is lower than the rated operating frequency of the compressor in refrigeration mode.

[0048] In this embodiment, the rated operating frequency of the compressor in refrigeration mode refers to the normal operating frequency of the compressor in normal refrigeration mode, determined based on parameters such as the set temperature and the current room temperature.

[0049] In this embodiment, the target operating frequency refers to the target operating frequency of the compressor determined based on the current environmental parameters when the air conditioner enters defrost mode.

[0050] In this embodiment, the target operating frequency is lower than the compressor's rated operating frequency in refrigeration mode, so that the compressor operates at a frequency lower than the rated operating frequency during the defrosting process.

[0051] Understandably, as the compressor frequency decreases, its exhaust temperature decreases, reducing the cooling capacity of the refrigeration cycle system. The indoor evaporator gradually transitions from a heat-absorbing state during normal cooling to a heat-releasing state, causing the evaporator coil temperature to gradually rise and melt the frost layer on the evaporator surface. Furthermore, the greater the frequency reduction, the more pronounced this evaporator transition process, and the stronger the defrosting capability.

[0052] In this embodiment, the reduction in the target operating frequency compared to the rated operating frequency is related to the current environmental parameters.

[0053] In some implementations, the reduction in the target operating frequency is determined solely based on the current ambient humidity. That is, when the current ambient humidity is low, the reduction in the target operating frequency relative to the rated operating frequency is smaller; when the current ambient humidity is high, the reduction in the target operating frequency relative to the rated operating frequency is larger.

[0054] In other implementations, the reduction in the target operating frequency is determined solely based on the current ambient temperature. That is, when the current ambient temperature is high, the reduction in the target operating frequency relative to the rated operating frequency is smaller; when the current ambient temperature is low, the reduction in the target operating frequency relative to the rated operating frequency is larger.

[0055] In other implementations, the reduction in the target operating frequency is determined based on both the current ambient humidity and the current ambient temperature, with the current ambient humidity being the primary factor in the judgment. That is, when the current ambient humidity is low, the reduction in the target operating frequency relative to the rated operating frequency is smaller, regardless of whether the current ambient temperature is high or low; when the current ambient humidity is high, the reduction in the target operating frequency relative to the rated operating frequency is larger, regardless of whether the current ambient temperature is high or low.

[0056] Specifically, the compressor frequency is significantly reduced when the frost layer is thick because the frost layer on the evaporator surface is thicker, requiring more heat for defrosting. A significant reduction in compressor frequency makes the evaporator's defrosting process more pronounced, resulting in stronger defrosting capabilities and faster frost melting. Conversely, the frequency is slightly reduced when the frost layer is thinner because the frost layer on the evaporator surface is thinner, requiring less heat for defrosting. A slight reduction in compressor frequency is sufficient to maintain stable system operation while providing the necessary heat for defrosting.

[0057] Understandably, by determining the compressor's target operating frequency based on current environmental parameters and ensuring that the target operating frequency is lower than the rated operating frequency in cooling mode, an appropriate frequency reduction can be adaptively selected based on the frost thickness. When humidity is low and / or temperature is high and the frost layer is thin, a small frequency reduction is sufficient to provide the heat required for defrosting, avoiding excessive frequency reduction and energy waste. When humidity is high and / or temperature is low and the frost layer is thick, a significant frequency reduction enhances defrosting capability, ensuring that thick frost layers are fully melted. This embodiment, through the correlation control of the current environmental parameters and the frequency reduction magnitude, enables on-demand adjustment of the defrosting process, thereby reducing unnecessary power consumption while ensuring defrosting effectiveness.

[0058] S13: Control the compressor to operate at the target operating frequency to defrost the evaporator.

[0059] In this embodiment, after determining the target operating frequency based on the current environmental parameters, the current operating frequency of the compressor is reduced from the rated operating frequency to the target operating frequency, so that the compressor switches to a relatively low frequency of operation and does not stop during the defrosting process of the evaporator.

[0060] In some implementations, when the current ambient humidity is low, the target operating frequency is obtained by reducing the rated operating frequency by a small margin, and the compressor is controlled to operate at the target operating frequency.

[0061] Because the frequency reduction is relatively small, the compressor discharge temperature decreases slightly, and the cooling capacity of the refrigeration cycle system weakens slightly. Therefore, the indoor evaporator slowly transitions from a heat-absorbing state to a heat-releasing state, and the evaporator coil temperature gradually rises at a relatively slow rate. When the coil temperature rises above 0°C, the thin frost layer begins to melt from the inside out. The melted condensate, carrying away dust and other contaminants, flows into the drip tray and is discharged outdoors. Due to the thin frost layer, the entire defrosting process can be completed in a short time with low power consumption.

[0062] In other implementations, when the ambient humidity is high, the target operating frequency is obtained by significantly reducing the rated operating frequency, and the compressor is controlled to operate at the target operating frequency.

[0063] Due to the significant frequency reduction, the compressor discharge temperature drops substantially, greatly weakening the cooling capacity of the refrigeration cycle system. The indoor evaporator rapidly transitions from a heat-absorbing state to a heat-releasing state, causing the evaporator coil temperature to rise at a relatively rapid rate. When the coil temperature rises above 0°C, the thick frost layer begins to melt gradually from the inside out. The melted condensate, carrying away dust and other contaminants, flows into the drip tray and is discharged outdoors. Because the significant frequency reduction provides stronger defrosting capabilities, the thick frost layer can be completely melted within a reasonable timeframe.

[0064] Understandably, controlling the compressor to operate at a target frequency to defrost the evaporator allows the compressor to run continuously during the defrosting process. This avoids prolonged defrosting time caused by compressor shutdown, as well as power surges and start-stop losses when the compressor restarts. Consequently, defrosting time is shortened, overall air conditioning energy consumption is reduced, and compressor lifespan is extended.

[0065] In this embodiment, the defrosting mode is automatically exited after defrosting is completed, and the compressor is controlled to gradually increase the frequency from the target operating frequency to restore the rated operating frequency in normal cooling mode.

[0066] Unlike related technologies, this embodiment acquires the current environmental parameters of the area where the air conditioner is located when it enters defrost mode, and determines the target operating frequency of the compressor based on these parameters. The target operating frequency is kept lower than the compressor's rated operating frequency in cooling mode. This allows for adaptive reduction of the compressor frequency according to environmental conditions, reducing power consumption during defrost and preventing compressor shutdown. By controlling the compressor to operate at the target frequency to defrost the evaporator, continuous compressor operation during defrost is achieved, shortening defrost time and reducing compressor start-up and shutdown losses. This application achieves uninterrupted defrosting through adaptive frequency reduction based on current environmental parameters, shortening defrost time and reducing power loss while ensuring effective defrosting, thereby reducing overall air conditioner energy consumption and extending the air conditioner's lifespan.

[0067] Please see Figure 2 , Figure 2 This is a flowchart illustrating the second embodiment of the energy-saving control method for air conditioners according to this application. In this embodiment, the energy-saving control method for air conditioners includes: S21: In response to the air conditioner entering defrost mode, obtain the current environmental parameters of the area where the air conditioner is located; wherein, the current environmental parameters include at least one of the current ambient humidity and the current ambient temperature.

[0068] Please refer to the description in S11 for the specific process, which will not be repeated here.

[0069] S22: In response to the current ambient humidity being less than or equal to a preset humidity threshold, and / or the current ambient temperature being greater than or equal to a preset temperature threshold, the target operating frequency is determined as the first operating frequency; wherein the first operating frequency is less than the rated operating frequency.

[0070] In this embodiment, the first operating frequency is the set defrosting operating frequency, which is lower than the rated operating frequency and the frequency reduction is small.

[0071] In this embodiment, the preset humidity threshold refers to a pre-set humidity reference value used to determine the current level of ambient humidity.

[0072] The preset humidity threshold is used to divide the current ambient humidity into low humidity range and high humidity range, which serves as the basis for determining the compressor frequency reduction range.

[0073] If the current ambient humidity is less than or equal to the preset humidity threshold, it indicates that the environment where the air conditioner is located is relatively dry, the frost layer formed on the evaporator surface during the initial frosting stage is thin, and less heat is required for defrosting. If the current ambient humidity is greater than the preset humidity threshold, it indicates that the environment where the air conditioner is located is relatively humid, the frost layer formed on the evaporator surface during the initial frosting stage is thick, and more heat is required for defrosting.

[0074] In some implementations, the preset humidity threshold is 70%. In other implementations, the preset humidity threshold is 60%. In still other implementations, the preset humidity threshold is 80%.

[0075] In this embodiment, the preset temperature threshold refers to a pre-set temperature reference value used to determine the degree of high or low ambient temperature. The current ambient temperature is compared with the preset temperature threshold to determine the thickness of the frost layer on the evaporator surface.

[0076] If the current ambient temperature is greater than or equal to the preset temperature threshold, it indicates that the ambient temperature where the air conditioner is located is relatively high, and the frost layer is relatively thin. If the current ambient temperature is less than the preset temperature threshold, it indicates that the ambient temperature where the air conditioner is located is relatively low, and the frost layer is relatively thick.

[0077] In some embodiments, the preset temperature threshold is 27°C. In other embodiments, the preset temperature threshold is 25°C. In still other embodiments, the preset temperature threshold is 30°C.

[0078] In this embodiment, the current ambient humidity and current ambient temperature can be used individually or in combination to determine the first operating frequency. When determined by combination, the current ambient humidity is the primary factor, and the current ambient temperature is secondary.

[0079] In some implementations, when the target operating frequency is determined solely based on the current ambient humidity, the target operating frequency is determined as the first operating frequency in response to the current ambient humidity being less than or equal to a preset humidity threshold.

[0080] In other implementations, when the target operating frequency is determined solely based on the current ambient temperature, the target operating frequency is determined as the first operating frequency in response to the current ambient temperature being greater than or equal to a preset temperature threshold.

[0081] Understandably, when the current ambient humidity is less than or equal to the preset humidity threshold, or when the current ambient temperature is greater than or equal to the preset temperature threshold, slightly reducing the compressor frequency allows the compressor to still maintain a relatively high frequency of operation. At this time, due to the slight decrease in exhaust temperature, the cooling capacity of the refrigeration cycle system is slightly reduced, and the evaporator coil temperature rises at a slower rate, which can achieve gentle melting of the thin frost layer. Thus, while meeting the defrosting requirements, it avoids excessive defrosting capacity and energy waste caused by excessive frequency reduction, thereby achieving energy-saving defrosting under low humidity or high temperature conditions.

[0082] In other embodiments, when determining the target operating frequency based on the current ambient humidity and the current ambient temperature, the target operating frequency is determined as the first operating frequency in response to the current ambient humidity being less than or equal to a preset humidity threshold and the current ambient temperature being greater than or equal to a preset temperature threshold.

[0083] In other embodiments, when determining the target operating frequency based on the current ambient humidity and the current ambient temperature, the target operating frequency is determined as the first operating frequency in response to the current ambient humidity being less than or equal to a preset humidity threshold and the current ambient temperature being less than a preset temperature threshold.

[0084] Understandably, combining the current ambient temperature and humidity for judgment, and setting the target operating frequency as the first operating frequency when the current ambient humidity is less than or equal to a preset humidity threshold, can more accurately identify high-temperature and low-humidity operating conditions or low-temperature and low-humidity operating conditions. Furthermore, since the frost layer is thinner in high-temperature environments, a slight frequency reduction can meet the defrosting requirements, further improving the accuracy of operating condition identification and the precision of frequency reduction control.

[0085] In this embodiment, the first operating frequency is obtained by calculation based on the first proportional coefficient and the rated operating frequency.

[0086] The first proportionality coefficient has a value range of less than 1 and greater than or equal to 0.6.

[0087] In some embodiments, the first scaling factor is 0.6. In other embodiments, the first scaling factor is 0.7. In still other embodiments, the first scaling factor is 0.9.

[0088] Specifically, in this embodiment, the first operating frequency is calculated in the following manner: (1) (2) in, The first operating frequency, For the rated operating frequency, This is the first proportionality coefficient.

[0089] Understandably, by calculating the first operating frequency based on the first proportional coefficient and the rated operating frequency, the frequency reduction can be precisely controlled within a reasonable range, so that the compressor operating frequency matches the defrosting heat required by the thin frost layer, thereby minimizing power consumption while ensuring the defrosting effect.

[0090] S23: In response to the current ambient humidity being greater than a preset humidity threshold and / or the current ambient temperature being less than a preset temperature threshold, the target operating frequency is determined as the second operating frequency; wherein the second operating frequency is less than the first operating frequency.

[0091] In this embodiment, the second operating frequency is the defrosting operating frequency set by the compressor. The second operating frequency is lower than the first operating frequency, and the frequency reduction is relatively large.

[0092] In this embodiment, the current ambient humidity and current ambient temperature can be used individually or in combination to determine the second operating frequency. When determined by combination, the current ambient humidity is the primary factor, and the current ambient temperature is secondary.

[0093] In some implementations, when the target operating frequency is determined solely based on the current ambient humidity, the target operating frequency is determined as a second operating frequency in response to the current ambient humidity being greater than a preset humidity threshold.

[0094] In other implementations, when the target operating frequency is determined solely based on the current ambient temperature, the target operating frequency is determined as a second operating frequency in response to the current ambient temperature being less than a preset temperature threshold.

[0095] Understandably, when the current ambient humidity is greater than the preset humidity threshold, or when the current ambient temperature is less than the preset temperature threshold, significantly reducing the compressor frequency allows the compressor to operate at a lower frequency. At this time, the exhaust temperature drops significantly, the cooling capacity of the refrigeration cycle system is greatly reduced, and the evaporator quickly changes from a heat absorption state to a heat release state. As a result, the evaporator coil temperature rises at a relatively fast rate, which can fully melt the thick frost layer, thereby avoiding incomplete defrosting due to insufficient frequency reduction and ensuring the defrosting effect under high humidity conditions.

[0096] In other embodiments, when determining the target operating frequency based on the current ambient humidity and the current ambient temperature, the target operating frequency is determined as the second operating frequency in response to the current ambient humidity being greater than a preset humidity threshold and the current ambient temperature being less than a preset temperature threshold.

[0097] In other embodiments, when determining the target operating frequency based on the current ambient humidity and the current ambient temperature, the target operating frequency is determined as the second operating frequency in response to the current ambient humidity being greater than a preset humidity threshold and the current ambient temperature being greater than or equal to a preset temperature threshold.

[0098] Understandably, combining the current ambient temperature and humidity for judgment, and setting the target operating frequency as the second operating frequency when the current ambient humidity exceeds a preset humidity threshold, can more accurately identify high-temperature and high-humidity or low-temperature and high-humidity operating conditions. Furthermore, since the frost layer is thicker in low-humidity environments, a significant frequency reduction can provide stronger defrosting capabilities, further improving the accuracy of operating condition identification and the reliability of defrosting effects.

[0099] In this embodiment, the second operating frequency is calculated based on the second proportional coefficient and the rated operating frequency. The second proportional coefficient is less than the first proportional coefficient.

[0100] The value of the second proportional coefficient is less than 0.6 and greater than or equal to 0.3.

[0101] In some embodiments, the second scaling factor is 0.3. In other embodiments, the second scaling factor is 0.4. In still other embodiments, the second scaling factor is 0.5.

[0102] Specifically, in this embodiment, the second operating frequency is calculated in the following manner: (3) (4) in, For the second operating frequency, For the rated operating frequency, This is the second proportionality coefficient.

[0103] Understandably, the second operating frequency is calculated based on the second proportional coefficient and the rated operating frequency, and the second proportional coefficient is less than the first proportional coefficient. This allows the frequency reduction to be precisely controlled within a reasonable range, so that the compressor operating frequency matches the defrosting heat required by the thick frost layer. This ensures the defrosting effect while avoiding system instability caused by excessively low frequency.

[0104] S24: Control the compressor to operate at the target operating frequency to defrost the evaporator.

[0105] In this embodiment, after determining the target operating frequency based on the current environmental parameters, the current operating frequency of the compressor is reduced from the rated operating frequency to the first operating frequency or the second operating frequency, so that the compressor switches to a relatively low frequency of operation and does not stop during the defrosting process of the evaporator.

[0106] In some implementations, after determining the target operating frequency based on the current ambient humidity and / or current ambient temperature, the compressor's current operating frequency is reduced from the rated operating frequency to a first operating frequency or a second operating frequency.

[0107] In some specific implementations, if the current ambient humidity is less than or equal to a preset humidity threshold, the target operating frequency is determined as the first operating frequency, and the compressor is controlled to operate at the first operating frequency to defrost the evaporator.

[0108] Understandably, when the current ambient humidity is less than or equal to the preset humidity threshold, slightly reducing the frequency to the first operating frequency can gently melt the frost layer at a slower rate, thereby meeting the defrosting requirements while avoiding energy waste caused by excessive frequency reduction.

[0109] In other specific embodiments, if the current ambient humidity is greater than a preset humidity threshold, the target operating frequency is determined as the second operating frequency, and the compressor is controlled to operate at the second operating frequency to defrost the evaporator.

[0110] Understandably, when the current ambient humidity is greater than the preset humidity threshold, the frequency is significantly reduced to the second operating frequency, which can melt the frost layer more quickly, thereby ensuring thorough defrosting.

[0111] In some other specific implementations, if the current ambient humidity is less than a preset humidity threshold and the current ambient temperature is greater than a preset temperature threshold, the target operating frequency is determined as the first operating frequency, and the compressor is controlled to operate at the first operating frequency to defrost the evaporator.

[0112] In other specific embodiments, if the current ambient humidity is greater than a preset humidity threshold and the current ambient temperature is less than a preset temperature threshold, the target operating frequency is determined as the second operating frequency, and the compressor is controlled to operate at the second operating frequency to defrost the evaporator.

[0113] In some implementations, during the defrosting phase, the air conditioning controller can also control the indoor fan to operate at the preset fan speed before self-cleaning. By activating the indoor fan, heat exchange on the indoor side is enhanced, accelerating the heat exchange between the indoor air and the evaporator, causing the evaporator coil temperature to rise more quickly, thereby strengthening the defrosting effect. In actual operation, the combined effect of the compressor operating at reduced frequency and the indoor fan blowing air, compared to a solution that only reduces frequency without activating the indoor fan, results in faster defrosting and a better defrosting effect.

[0114] Unlike related technologies, this embodiment acquires current environmental parameters when the air conditioner enters defrost mode and adaptively determines the compressor's frequency reduction range based on a comparison between the current environmental parameters and a corresponding preset threshold. This enables on-demand frequency reduction control based on environmental conditions. By controlling the compressor to operate at a first or second operating frequency, the compressor can run continuously during defrost, thereby shortening defrost time and reducing compressor start-stop losses. This application achieves uninterrupted defrosting through adaptive frequency reduction based on current environmental parameters, shortening defrost time and reducing power loss while ensuring defrosting effectiveness, thus reducing overall air conditioner energy consumption and extending the air conditioner's lifespan.

[0115] Please see Figure 3 , Figure 3 This is a flowchart illustrating the third embodiment of the energy-saving control method for air conditioners according to this application. In this embodiment, the energy-saving control method for air conditioners includes: S31: In response to receiving a self-cleaning command, the air conditioner is controlled to sequentially enter condensation mode and frosting mode to form a frost layer on the evaporator surface.

[0116] In this embodiment, the self-cleaning command refers to the control command used to activate the self-cleaning function of the air conditioner.

[0117] In some implementations, the self-cleaning command is actively triggered by the user via remote control, panel buttons, or mobile application. In other implementations, the self-cleaning command is automatically generated by the air conditioner controller based on preset conditions (such as cumulative runtime).

[0118] In this embodiment, after receiving the self-cleaning command, the air conditioner controller controls the air conditioner to sequentially enter the condensation mode, the frosting mode, and the defrosting mode to complete the automatic cleaning of the evaporator.

[0119] In this embodiment, the condensation mode refers to the first operating stage of the air conditioner's self-cleaning process. In condensation mode, the air conditioner operates in cooling mode, and the controller keeps the indoor fan off to prevent airflow from carrying away the cold energy from the evaporator surface. This allows the evaporator surface temperature to drop below the dew point temperature more quickly, promoting the condensation of water vapor in the air onto the evaporator surface to form tiny water droplets (i.e., condensation). This wets the evaporator surface, providing a moisture basis for the formation of frost in the subsequent frosting stage. The frosting mode refers to the second operating stage of the air conditioner's self-cleaning process, immediately following the condensation mode. In frosting mode, the air conditioner continues to operate in cooling mode, further reducing the evaporator surface temperature to below 0°C, causing the water droplets formed in the condensation stage to freeze into frost on the evaporator surface. The volume expansion force generated during frost formation removes dust and other contaminants adhering to the evaporator surface. The defrosting mode refers to the third operating stage of the air conditioner's self-cleaning process, immediately following the frosting mode. In defrosting mode, the air conditioner melts the frost layer formed on the evaporator surface.

[0120] S32: After the frosting mode ends, control the air conditioner to enter the defrosting mode to defrost the frost layer formed on the evaporator surface.

[0121] S33: In response to the air conditioner entering defrost mode, obtain the current environmental parameters of the area where the air conditioner is located; wherein, the current environmental parameters include at least one of the current ambient humidity and the current ambient temperature.

[0122] Please refer to the description in S11 for the specific process, which will not be repeated here.

[0123] S34: Determine the target operating frequency of the compressor based on the current environmental parameters; wherein the target operating frequency is lower than the rated operating frequency of the compressor in refrigeration mode.

[0124] For details, please refer to the descriptions in S12 and S22~S23, which will not be repeated here.

[0125] S35: Controls the compressor to operate at the target operating frequency to defrost the evaporator.

[0126] In this embodiment, while controlling the compressor to operate at the target operating frequency, the opening of the air conditioner's electronic expansion valve is increased, and / or the speed of the air conditioner's outdoor fan is reduced.

[0127] The electronic expansion valve, in particular, is a throttling device used in air conditioning refrigeration systems to control the flow of refrigerant. It regulates the flow and pressure drop of the refrigerant by adjusting its opening degree. When the opening degree increases, the throttling effect weakens, resulting in relatively higher pressure and temperature of the refrigerant flowing through it; conversely, when the opening degree decreases, the throttling effect strengthens, and the refrigerant is sufficiently throttled, depressurized, and cooled. In normal cooling mode, the electronic expansion valve typically maintains a moderate opening degree to ensure that the refrigerant, after sufficient throttling, enters the evaporator at a low temperature and low pressure to absorb heat and cool.

[0128] The outdoor fan refers to the component in the outdoor unit of an air conditioner used for forced air cooling of the outdoor condenser. The outdoor fan drives airflow across the condenser surface, carrying away heat from the condenser and dissipating it into the outdoor environment. The speed of the outdoor fan determines the condenser's heat dissipation efficiency. In normal cooling mode, the outdoor fan typically operates at a higher speed to ensure sufficient heat dissipation from the condenser.

[0129] In some implementations, in response to the air conditioner entering defrost mode, the opening of the air conditioner's electronic expansion valve is increased while controlling the compressor to operate at a target operating frequency.

[0130] Understandably, during the defrosting process, by increasing the opening of the air conditioner's electronic expansion valve, the throttling effect can be weakened, allowing the refrigerant flowing from the outdoor condenser back to the indoor evaporator to maintain a higher pressure and temperature, thereby increasing the evaporator coil temperature and accelerating the melting of the frost layer.

[0131] In some specific implementations, in defrost mode, the opening degree of the electronic expansion valve is increased to the maximum opening degree for cooling, based on the opening degree corresponding to the normal cooling mode.

[0132] Understandably, increasing the opening of the electronic expansion valve to its maximum cooling capacity during the defrosting stage minimizes the throttling effect and reduces the pressure and temperature drop of the refrigerant at the electronic expansion valve. At this time, the refrigerant flowing back from the outdoor condenser to the indoor evaporator maintains a higher pressure and temperature, significantly increasing the evaporation temperature. With the increased evaporation temperature, the evaporator coil temperature rises accordingly, increasing the temperature difference between the coil and the frost layer, accelerating the heat exchange rate, and thus speeding up the melting of the frost layer and improving the defrosting effect.

[0133] In other implementations, in response to the air conditioner entering defrost mode, the speed of the outdoor fan of the air conditioner is reduced while controlling the compressor to operate at the target operating frequency.

[0134] In some specific implementations, in defrost mode, the speed of the outdoor fan of the air conditioner is adjusted to the lowest speed.

[0135] Understandably, during the defrosting process, by reducing the speed of the outdoor fan of the air conditioner, the heat dissipation efficiency of the outdoor condenser can be reduced, thereby maintaining the temperature and pressure on the high-pressure side of the system. This promotes the transfer of heat to the indoor evaporator side, thus increasing the defrosting speed.

[0136] In other implementations, in response to the air conditioner entering defrost mode, while controlling the compressor to operate at the target operating frequency, the opening of the air conditioner's electronic expansion valve is increased, and the speed of the air conditioner's outdoor fan is reduced.

[0137] Understandably, during the defrosting process, by increasing the opening of the electronic expansion valve to reduce refrigerant pressure drop and reducing the speed of the outdoor fan to reduce system heat loss, the evaporator coil temperature can rise at a faster rate through the synergistic effect of the two, thereby further shortening the defrosting time and further improving the defrosting efficiency and overall self-cleaning efficiency.

[0138] S36: Obtain the coil temperature of the evaporator and check whether the coil temperature has reached the preset temperature.

[0139] In this embodiment, the coil temperature refers to the temperature of the evaporator coil, which is collected by a temperature sensor installed on the evaporator coil.

[0140] During the defrosting process, the coil temperature is used to monitor the evaporator's temperature rise in real time, serving as a basis for determining whether the frost has completely melted. As defrosting progresses, the coil temperature gradually rises, and when the coil temperature reaches the preset temperature and remains there for a certain period of time, it indicates that the frost has completely melted.

[0141] In this embodiment, the preset temperature refers to the coil temperature threshold that is set in advance to determine whether defrosting is complete.

[0142] When the evaporator coil temperature reaches the preset temperature, it indicates that the frost layer on the evaporator surface has basically melted.

[0143] In some implementations, the preset temperature ranges from 5°C to 10°C.

[0144] In some embodiments, the preset temperature is 5°C. In other embodiments, the preset temperature is 7°C. In still other embodiments, the preset temperature is 10°C.

[0145] S37: In response to the coil temperature reaching the preset temperature, and the duration of the coil temperature reaching the preset temperature being greater than or equal to the preset duration, defrosting is confirmed to be complete.

[0146] In this embodiment, the duration refers to the length of time that the coil temperature remains above the preset temperature after it reaches the preset temperature.

[0147] The purpose of setting the duration is to prevent premature defrosting completion due to instantaneous fluctuations in coil temperature.

[0148] In this embodiment, the preset duration refers to the shortest time that the coil temperature must be maintained above the preset temperature.

[0149] When the coil temperature reaches the preset temperature and its duration is greater than or equal to the preset duration, it indicates that the frost layer on the evaporator surface has been completely and stably melted. Based on this, the air conditioning controller can determine that defrosting is complete and then exit the defrosting mode.

[0150] In some implementations, the preset duration ranges from 5s to 20s.

[0151] In some implementations, the preset duration is 5 seconds. In other implementations, the preset duration is 10 seconds. In still other implementations, the preset duration is 15 seconds.

[0152] In this embodiment, after defrosting is completed, the air conditioner controller controls the air conditioner to exit the defrosting mode and then executes frequency increase control to gradually increase the compressor's current operating frequency from the target operating frequency in the defrosting mode to the rated operating frequency in the normal cooling mode, so that the air conditioner returns to normal operation.

[0153] Unlike related technologies, this implementation automates the entire evaporator self-cleaning process by controlling the air conditioner to sequentially enter condensation mode, frosting mode, and defrosting mode. In defrosting mode, the compressor runs continuously without stopping, avoiding compressor start-stop shocks and reducing extra energy consumption during start-stop processes, thereby extending the compressor's lifespan. By adaptively determining the compressor's frequency reduction based on the current ambient humidity, a small frequency reduction in low humidity avoids excessive frequency reduction leading to wasted cooling capacity and room temperature fluctuations; while a significant frequency reduction in high humidity increases the coil temperature, ensuring complete frost melting. Furthermore, frequency increase control after defrosting restores the air conditioner to normal operation.

[0154] Please see Figure 4 , Figure 4This is a flowchart illustrating an application scenario of the energy-saving control method for air conditioning, as described in this application. In this embodiment, in response to the air conditioner entering defrost mode, the current environmental parameters of the area where the air conditioner is located are obtained, including the current ambient humidity. It is determined whether the current ambient humidity is less than or equal to a preset humidity threshold. If the current ambient humidity is less than or equal to the preset humidity threshold, a target operating frequency is determined as a first operating frequency, where the first operating frequency is less than the rated operating frequency. If the current ambient humidity is greater than the preset humidity threshold, the target operating frequency is determined as a second operating frequency, where the second operating frequency is less than the first operating frequency. The compressor is controlled to operate at the target operating frequency to defrost the evaporator, while simultaneously increasing the opening of the air conditioner's electronic expansion valve and decreasing the speed of the air conditioner's outdoor fan. The evaporator coil temperature is obtained, and it is detected whether the coil temperature has reached a preset temperature. If the coil temperature reaches the preset temperature, and the duration of the coil temperature reaching the preset temperature is greater than or equal to a preset duration, defrosting is determined to be complete, and the self-cleaning function is deactivated. Then, frequency boosting control is executed to gradually increase the compressor's current operating frequency from the target operating frequency in defrost mode to the rated operating frequency in normal cooling mode, so that the air conditioner can return to normal operation.

[0155] Unlike related technologies, this embodiment acquires the current ambient humidity when the air conditioner enters defrost mode and adaptively determines the compressor's frequency reduction range based on a comparison between the current ambient humidity and a preset humidity threshold. This enables on-demand frequency reduction control based on environmental conditions. By controlling the compressor to operate at a first or second operating frequency, the compressor can run continuously during defrost, thereby shortening defrost time and reducing compressor start-up and shutdown losses. This application achieves uninterrupted defrosting through adaptive frequency reduction based on current environmental parameters, shortening defrost time and reducing power loss while ensuring defrosting effectiveness, thus reducing overall air conditioner energy consumption and extending the air conditioner's lifespan.

[0156] Correspondingly, this application provides an electronic device.

[0157] Please see Figure 5 , Figure 5 This is a schematic diagram of one embodiment of the electronic device of this application. For example... Figure 5 As shown, in this embodiment, the electronic device 50 includes a memory 51 and a processor 52.

[0158] In this embodiment, memory 51 is used to store program data, which, when executed, implements the steps of the energy-saving control method for air conditioners as described above. Processor 52 is used to execute the program instructions stored in memory 51 to implement the steps of the energy-saving control method for air conditioners as described above.

[0159] Specifically, processor 52 controls itself and memory 51 to implement the steps in the energy-saving control method applied to air conditioning as described above. Processor 52 can also be called a CPU (Central Processing Unit). Processor 52 may be an integrated circuit chip with signal processing capabilities. Processor 52 can also be a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. A general-purpose processor can be a microprocessor or any conventional processor. Furthermore, processor 52 can be implemented using multiple integrated circuit chips.

[0160] Unlike related technologies, this embodiment uses processor 52 to acquire the current ambient humidity when the air conditioner enters defrost mode, and adaptively determines the compressor's frequency reduction range based on a comparison between the current ambient humidity and a preset humidity threshold. This enables on-demand frequency reduction control based on environmental conditions. By controlling the compressor to operate at a first or second operating frequency, the compressor can run continuously during defrost, thereby shortening defrost time and reducing compressor start-up and shutdown losses. This application achieves uninterrupted defrosting through adaptive frequency reduction based on current environmental parameters, which shortens defrost time and reduces power loss while ensuring defrosting effectiveness, thereby reducing overall air conditioner energy consumption and extending the air conditioner's lifespan.

[0161] Correspondingly, this application provides a computer-readable storage medium.

[0162] Please see Figure 6 , Figure 6 This is a schematic diagram of one embodiment of the computer-readable storage medium of this application.

[0163] The computer-readable storage medium 60 includes a computer program 601 stored on it. When executed by the aforementioned processor, the computer program 601 implements the steps of the energy-saving control method for air conditioning as described above. Specifically, if the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium 60. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the related technology, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a computer-readable storage medium 60 and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of various embodiments of this application. The aforementioned computer-readable storage medium 60 includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0164] In the several embodiments provided in this application, it should be understood that the disclosed methods and apparatus can be implemented in other ways. For example, the apparatus implementations described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0165] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0166] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0167] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0168] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An energy-saving control method applied to air conditioning, characterized in that, include: In response to the air conditioner entering defrost mode, the current environmental parameters of the area where the air conditioner is located are obtained; wherein, the current environmental parameters include at least one of the current ambient humidity and the current ambient temperature; The target operating frequency of the compressor is determined based on the current environmental parameters; wherein the target operating frequency is lower than the rated operating frequency of the compressor in cooling mode; The compressor is controlled to operate at the target operating frequency to defrost the evaporator.

2. The energy-saving control method according to claim 1, characterized in that, The step of determining the target operating frequency of the compressor based on the current environmental parameters includes: In response to the current ambient humidity being less than or equal to a preset humidity threshold, and / or the current ambient temperature being greater than or equal to a preset temperature threshold, the target operating frequency is determined as a first operating frequency; wherein the first operating frequency is less than the rated operating frequency; In response to the current ambient humidity being greater than the preset humidity threshold, and / or the current ambient temperature being less than the preset temperature threshold, the target operating frequency is determined as a second operating frequency; wherein the second operating frequency is less than the first operating frequency.

3. The energy-saving control method according to claim 2, characterized in that, The step of determining the target operating frequency as the first operating frequency includes: The first operating frequency is obtained by calculating based on the first proportional coefficient and the rated operating frequency; The step of determining the target operating frequency as the second operating frequency includes: The second operating frequency is obtained by calculating based on the second proportional coefficient and the rated operating frequency; wherein the second proportional coefficient is less than the first proportional coefficient.

4. The energy-saving control method according to claim 2, characterized in that, The step of determining the target operating frequency of the compressor based on the current environmental parameters includes: In response to the current ambient humidity being less than or equal to the preset humidity threshold and the current ambient temperature being less than the preset temperature threshold, the target operating frequency is determined as the first operating frequency; In response to the current ambient humidity being greater than the preset humidity threshold and the current ambient temperature being greater than or equal to the preset temperature threshold, the target operating frequency is determined as the second operating frequency.

5. The energy-saving control method according to claim 1, characterized in that, The step of controlling the compressor to operate at the target operating frequency to defrost the evaporator further includes: Increase the opening of the electronic expansion valve of the air conditioner, and / or decrease the speed of the outdoor fan of the air conditioner.

6. The energy-saving control method according to claim 1, characterized in that, After the step of controlling the compressor to operate at the target operating frequency to defrost the evaporator, the following steps are included: The temperature of the evaporator coil is obtained, and it is detected whether the coil temperature has reached the preset temperature. In response to the coil temperature reaching the preset temperature, and the duration for which the coil temperature reaches the preset temperature being greater than or equal to the preset duration, defrosting is determined to be complete.

7. The energy-saving control method according to claim 6, characterized in that, Before the step of obtaining the current environmental parameters of the area where the air conditioner is located in response to the air conditioner entering defrost mode, the following steps are included: In response to receiving a self-cleaning command, the air conditioner is controlled to sequentially enter condensation mode and frosting mode to form a frost layer on the surface of the evaporator. After the frosting mode ends, the air conditioner is controlled to enter the defrosting mode to defrost the frost layer formed on the evaporator surface.

8. An air conditioner, characterized in that, The air conditioner is controlled by the energy-saving control method applied to the air conditioner as described in any one of claims 1 to 7.

9. An electronic device, characterized in that, include: A memory for storing program data, which, when executed, implements the steps of the energy-saving control method for air conditioning as described in any one of claims 1 to 7; A processor is configured to execute the program data stored in the memory to implement the steps in the energy-saving control method for an air conditioner as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the energy-saving control method for air conditioning as described in any one of claims 1 to 7.

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