Air conditioner control method, device, air conditioner and computer-readable storage medium

Abstract

This application provides an air conditioner control method, apparatus, air conditioner, and computer-readable storage medium. The method includes: determining the current dirt level of a target air conditioner; determining whether to activate an air conditioner cleaning mode based on the current dirt level; if activating the air conditioner cleaning mode, obtaining the duration for which the evaporator in the target air conditioner maintains a frosting temperature; controlling the current temperature of the evaporator to the frosting temperature and extending the maintenance time to prolong the frosting time of the evaporator; and if the evaporator completes operation at the frosting temperature and after the extended maintenance time, controlling the temperature of the evaporator from the frosting temperature to the defrosting temperature. The air conditioner control method provided by this application can effectively clean the air conditioner, improve the cleaning effect of the air conditioner's self-cleaning, and eliminate the need for manual cleaning.

Description

Technical Field

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

[0002] After prolonged use, air conditioners often accumulate dust and dirt on the evaporator of the indoor unit. Current technology typically involves disassembling the air conditioner and manually cleaning the dust from the evaporator.

[0003] However, users typically don't manually clean their air conditioners frequently. This easily leads to a buildup of dust inside the unit over a long period. Furthermore, manual cleaning is also a costly process for users. Therefore, it's necessary to address the issues of low cleaning frequency and high cleaning costs. Summary of the Invention

[0004] This application provides an air conditioner control method that enables the air conditioner to clean itself automatically without the need for manual cleaning.

[0005] In a first aspect, this application provides an air conditioner control method, the method comprising:

[0006] Determine the current level of dirtiness of the target air conditioner;

[0007] Based on the current level of dirt, determine whether to activate the air conditioner cleaning mode;

[0008] If the air conditioner cleaning mode is activated, obtain the duration for which the evaporator in the target air conditioner maintains the frosting temperature.

[0009] Control the current temperature of the evaporator to the frosting temperature and extend the holding time to prolong the frosting time of the evaporator;

[0010] If the evaporator completes operation at the frosting temperature and after an extended maintenance time, the temperature of the evaporator is controlled from the frosting temperature to the defrosting temperature.

[0011] In some embodiments of this application, determining the current dirt level of the target air conditioner includes:

[0012] Obtain the historical running time of the last time the target air conditioner ran the air conditioner cleaning mode and the current time;

[0013] Determine the target time difference between the current time and the historical running time;

[0014] The current level of dirtiness of the target air conditioner is determined based on the target time difference.

[0015] In some embodiments of this application, determining the current dirt level of the target air conditioner includes:

[0016] Obtain the historical average temperature of the evaporator during the last operating time of the target air conditioner and the current average temperature of the evaporator during the current operating time of the target air conditioner;

[0017] Determine the target temperature difference between the current average temperature and the historical average temperature;

[0018] The current level of dirtiness of the target air conditioner is determined based on the target temperature difference.

[0019] In some embodiments of this application, determining whether to activate the air conditioner cleaning mode based on the current level of dirt includes:

[0020] If the current level of dirt is the first level of dirt, then the air conditioner cleaning mode will not be activated;

[0021] If the current level of dirt is level two, then the air conditioner cleaning mode is activated;

[0022] If the current dirt level is level three, then the air conditioner cleaning mode will be activated twice.

[0023] In some embodiments of this application, after determining that the air conditioner cleaning mode is activated, the method further includes:

[0024] Determine the current operating mode of the target air conditioner;

[0025] If the current operating mode of the target air conditioner is non-cooling mode, then the non-cooling mode is converted to cooling mode;

[0026] If the target air conditioner ends the air conditioner cleaning mode, then the cooling mode is switched back to the previous non-cooling mode;

[0027] If the target air conditioner is currently operating in the cooling mode, then the cooling mode will be maintained until the air conditioner cleaning mode ends.

[0028] In some embodiments of this application, controlling the current temperature of the evaporator to the frosting temperature and extending the holding time includes:

[0029] Determine the total duration after extending the duration;

[0030] The current evaporator temperature is obtained within the total maintenance time according to a preset sampling time interval.

[0031] Determine the rate of temperature change based on the current evaporator temperature;

[0032] The frequency of the compressor in the target air conditioner is controlled according to the rate of temperature change.

[0033] In some embodiments of this application, controlling the frequency of the compressor in the target air conditioner according to the rate of temperature change includes:

[0034] If the rate of temperature change is in the first rate range, then the current frequency of the compressor is increased by a first frequency value, and the opening degree of the target electronic expansion valve in the target air conditioner is decreased.

[0035] If the rate of temperature change is in the second rate range, then the frequency of the compressor is not adjusted;

[0036] If the rate of temperature change is within the third rate range, then the current frequency of the compressor is reduced by the first frequency value;

[0037] If the rate of temperature change is in the fourth rate range, then the current frequency of the compressor is reduced by the second frequency value;

[0038] If the rate of temperature change is within the fifth rate range, the current frequency of the compressor is reduced to the second frequency value, and the fan in the target air conditioner is started.

[0039] Wherein, the first rate interval is smaller than the second rate interval, the second rate interval is smaller than the third rate interval, the third rate interval is smaller than the fourth rate interval, the fourth rate interval is smaller than the fifth rate interval, and the second frequency value is greater than the first frequency value.

[0040] Secondly, this application also provides an air conditioner control device, the device comprising:

[0041] The determination module is used to determine the current level of dirtiness of the target air conditioner;

[0042] The determination module is also used to determine whether to activate the air conditioner cleaning mode based on the current level of dirt.

[0043] The acquisition module is used to acquire the duration of the evaporator in the target air conditioner maintaining the frosting temperature if the air conditioner cleaning mode is determined to be activated.

[0044] A control module is used to control the current temperature of the evaporator to the frosting temperature and extend the holding time to prolong the frosting time of the evaporator;

[0045] The control module is also configured to control the temperature of the evaporator from the frosting temperature to the defrosting temperature after the evaporator has completed operation at the frosting temperature and with an extended holding time.

[0046] Thirdly, this application also provides an air conditioner, the terminal device including an air conditioner, a memory, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the steps in any of the air conditioner control methods described above.

[0047] Fourthly, this application also provides a computer-readable storage medium storing a computer program that is executed by a processor to implement the steps in any of the air conditioner control methods described above.

[0048] The air conditioner control method provided in this application can first determine the degree of dirt on the air conditioner itself. If the degree of dirt is high, the air conditioner's cleaning mode can be activated, preventing situations where the evaporator is too dirty before manual dust removal. Simultaneously, when the air conditioner cleaning mode is activated, the amount of frost on the evaporator can be increased by maintaining the frost-forming time. Furthermore, when the evaporator temperature reaches the defrost temperature, the increased frost amount leads to an increased amount of defrost water. This increased defrost water, flowing down the evaporator, carries away excess dust, thus achieving the effect of eliminating the need for manual defrosting. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of a scenario for the air conditioner control system provided in the embodiments of this application;

[0051] Figure 2 This is a schematic flowchart of one embodiment of the air conditioner control method in this application.

[0052] Figure 3 This is a schematic diagram of one embodiment of the air conditioner control device in this application.

[0053] Figure 4 This is a schematic diagram of the structure of an embodiment of the air conditioner in this application. Detailed Implementation

[0054] 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.

[0055] In the description of this application, it should be understood that the terms "a" and "an" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "a" or "an" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0057] This application provides an air conditioner control method, apparatus, air conditioner, and storage medium, which are described below.

[0058] The following section first introduces some basic concepts involved in the embodiments of this application:

[0059] An air conditioner generally consists of several main parts, including a cold / heat source unit, a cold / heat medium distribution system, terminal units, and other auxiliary equipment. The main components include the refrigeration unit, water pump, fan, and piping system. The terminal units are responsible for utilizing the distributed cold or heat to specifically process the air, ensuring that the air parameters of the target environment meet certain requirements.

[0060] Please see Figure 1 , Figure 1This is a schematic diagram of a scenario for the air conditioner control method provided in this application embodiment. The air conditioner control system may include an air conditioner 100. The air conditioner 100 can receive instruction information sent by an internal main control device, and the air conditioner 100 can perform a series of operations such as cooling, heating, dehumidification, and dust removal according to the corresponding instruction information, such as the air conditioner control method in this application.

[0061] In this embodiment of the application, the air conditioner 100 includes, but is not limited to, wall-mounted air conditioners, floor-standing air conditioners, window air conditioners, ceiling-mounted air conditioners, and recessed air conditioners.

[0062] Those skilled in the art will understand that Figure 1 The application environment shown is merely one application scenario of the solution in this application and does not constitute a limitation on the application scenario of the solution in this application. Other application environments may include those that are more specific to this application. Figure 1 The number of more or fewer air conditioners and air conditioners shown, for example Figure 1 Only one air conditioner or air conditioner is shown in the figure. The air conditioner control system of this application may also include one or more air conditioners and air conditioners for performing the air conditioner control method of this application. The specific details are not limited here.

[0063] In addition, the main control device may include any hardware device capable of data processing and instruction sending, such as a CPU or microcontroller embedded inside the air conditioner; no specific limitation is made here.

[0064] It should be noted that, Figure 1 The schematic diagram of the air conditioner control system shown is merely an example. The air conditioner control system and scenario described in this application embodiment are for the purpose of more clearly illustrating the technical solutions of this application embodiment and do not constitute a limitation on the technical solutions provided in this application embodiment. As those skilled in the art will know, with the evolution of air conditioner control systems and the emergence of new business scenarios, the technical solutions provided in this application embodiment are also applicable to similar technical problems.

[0065] like Figure 2 As shown, Figure 2 This is a schematic flowchart of one embodiment of the air conditioner control method in this application. The air conditioner control method may include the following steps 201-205:

[0066] 201. Determine the current level of dirtiness of the target air conditioner.

[0067] In this embodiment, the current dirt level can be determined by the cumulative operating time of the air conditioner. For example, a cumulative operating time threshold can be set. Each time the air conditioner runs, the main control device can time the air conditioner, record the operating time, and store it. This operating time is not cleared after the air conditioner is powered off. Then, when the recorded operating time reaches the cumulative operating time threshold, the current dirt level of the target air conditioner can be determined to be high; otherwise, it is low.

[0068] 202. Determine whether to activate the air conditioner cleaning mode based on the current level of dirt.

[0069] Based on the steps above, if the current dirt level is high, the air conditioner cleaning mode will be activated; if the current dirt level is low, the air conditioner cleaning mode will not be activated. Furthermore, if the air conditioner cleaning mode is activated, the recorded running time can be cleared, and the running time will be recorded again from the initial value the next time the air conditioner is turned on.

[0070] 203. If the air conditioner cleaning mode is activated, obtain the duration for which the evaporator in the target air conditioner maintains the frosting temperature.

[0071] Based on the above steps, if the air conditioner cleaning mode is activated, dust cleaning of the air conditioner's evaporator can begin. During normal operation, frost forms on the evaporator. After frost formation, the air conditioner performs a defrosting process to prevent frost from affecting its operation. After defrosting, the frost on the evaporator transforms into defrost water, which flows down the evaporator and is then discharged from the air conditioner through the drain pipe. Therefore, this embodiment of the application can utilize defrost water to clean the evaporator.

[0072] However, under normal circumstances, after the evaporator frosts up, the air conditioner will start defrosting. This results in a smaller amount of frost on the evaporator, and consequently, a smaller amount of defrost water, which is insufficient to clean the evaporator. Therefore, in this embodiment, the temperature at which the evaporator frosts under normal conditions can be determined first. For example, monitoring the time the evaporator temperature is at 0 degrees Celsius under normal conditions can be considered the frost temperature, and the duration the evaporator remains at 0 degrees Celsius can be considered the holding time. This step can be achieved by obtaining the evaporator temperature using a temperature sensor on the evaporator, and then determining the total duration the evaporator remains at the frost temperature using the main control device.

[0073] 204. Control the current temperature of the evaporator to the frosting temperature and extend the holding time to prolong the frosting time of the evaporator.

[0074] As described above, in order for the evaporator to utilize defrosting water for dust removal, the frosting time of the evaporator needs to be extended. After obtaining the maintenance time through the above steps, extending this maintenance time increases the amount of frost on the evaporator. Since the evaporator exchanges heat when the air conditioner operates at a certain frequency, the frosting temperature corresponds to a specific operating frequency of the air conditioner. Therefore, when the temperature sensor on the evaporator detects that the current temperature is the frosting temperature, the main control unit can determine the current operating frequency of the air conditioner. To extend this maintenance time, the main control unit can control the air conditioner to continue operating at the frequency corresponding to the frosting temperature, thus maintaining the frosting temperature and extending the maintenance time. Understanding this principle, if the air conditioner is in cleaning mode, the main control unit can control the air conditioner's frequency to the target frequency corresponding to the frosting temperature and maintain the target frequency with a longer operating time than normal, thereby achieving the effect of extending the frosting time. The extended duration can be set according to the actual situation, such as adding three minutes to the original duration. The specific implementation of this application is not limited.

[0075] 205. If the evaporator completes operation at the frosting temperature and after an extended holding time, control the evaporator temperature from the frosting temperature to the defrosting temperature.

[0076] Based on the steps described above, after extending the frosting time, the air conditioner's main control unit can adjust the air conditioner's operating frequency, for example, by reducing the operating frequency. This causes the evaporator temperature to gradually rise, slowly melting the frost on the evaporator and turning it into defrost water. Then, the larger amount of melted defrost water is used to leave a residue on the evaporator, thereby carrying away the dust on the evaporator.

[0077] The air conditioner control method provided in this application can first determine the degree of dirt on the air conditioner itself. If the degree of dirt is high, the air conditioner's cleaning mode can be activated, preventing situations where the evaporator is too dirty before manual dust removal. Simultaneously, when the air conditioner cleaning mode is activated, the amount of frost on the evaporator can be increased by maintaining the frost-forming time. Furthermore, when the evaporator temperature reaches the defrost temperature, the increased frost amount leads to an increased amount of defrost water. This increased defrost water, flowing down the evaporator, carries away excess dust, thus achieving the effect of eliminating the need for manual defrosting.

[0078] To better implement the method of this application, in some embodiments of this application, the current dirt level of the target air conditioner is determined, including:

[0079] Obtain the historical operating time of the target air conditioner's last operation of the air conditioning cleaning mode and the current time; determine the target time difference between the current time and the historical operating time; and determine the current dirt level of the target air conditioner based on the target time difference.

[0080] The above embodiments provide a method for determining the current level of dirtiness of an air conditioner based on its cumulative operating time. This application also provides a method for determining the current level of dirtiness of an air conditioner.

[0081] Specifically, the level of dust accumulation can be determined by checking the last time the air conditioner ran its cleaning mode. This is because the longer the time difference between the last cleaning mode run and the current time, the more dust has accumulated on the air conditioner. Therefore, the air conditioner's main control unit can record the time each time the cleaning mode is run. Then, each time the air conditioner runs, the main control unit can obtain the current time. Afterward, the difference between the two times is calculated to obtain the target time difference. Similarly, a time difference threshold can be set; if the target time difference exceeds this threshold, the current level of dust accumulation is determined to be high; otherwise, the current level of dust accumulation is determined to be low.

[0082] To better implement the method of this application, in some embodiments of this application, the current dirt level of the target air conditioner is determined, including:

[0083] Obtain the historical average temperature of the evaporator during the last operating time of the target air conditioner and the current average temperature of the evaporator during the current operating time of the target air conditioner; determine the target temperature difference between the current average temperature and the historical average temperature; and determine the current dirt level of the target air conditioner based on the target temperature difference.

[0084] The above embodiments provide a method for determining the current level of dirtiness based on time. To more accurately determine the current level of dirtiness, this application also provides a scheme for determining the current level of dirtiness by detecting the temperature of the evaporator.

[0085] Specifically, as the amount of dust increases, it hinders heat exchange on the evaporator, leading to a rise in evaporator temperature. For example, under normal circumstances, when the evaporator is clean, assuming the air conditioner is operating at frequency B, the evaporator temperature should be temperature B. However, as dust accumulates, even while the air conditioner is still operating at frequency B, the evaporator temperature will be temperature C, which is higher than temperature B. Therefore, in this embodiment, temperature B can be understood as the historical average temperature, and temperature C can be understood as the current average temperature. Thus, when the temperature difference between temperature C and temperature B exceeds a certain threshold, the current level of dirtiness can be determined to be high; conversely, the current level of dirtiness is low.

[0086] To better implement the method of this application, in some embodiments of this application, it is determined whether to activate the air conditioner cleaning mode based on the current level of dirt, including:

[0087] If the current dirt level is Level 1, the air conditioner cleaning mode will not be activated; if the current dirt level is Level 2, the air conditioner cleaning mode will be activated; if the current dirt level is Level 3, the air conditioner cleaning mode will be activated twice.

[0088] The above embodiments provide various schemes for determining the level of dirt. However, in order to more accurately determine the current level of dirt, this application embodiment also provides a scheme for determining different levels of dirt.

[0089] Specifically, for any of the above-mentioned implementation methods for determining the current level of dirtiness, different thresholds can be set to classify the target time difference and the target temperature difference. When the target time difference or the target temperature difference falls within different threshold ranges, it corresponds to a level of dirtiness, namely the first level of dirtiness, the second level of dirtiness, or the third level of dirtiness in this application embodiment, etc.

[0090] The first level of dirt corresponds to a clean state, at which point the air conditioner does not need to activate the air conditioner cleaning mode, i.e., there is no need to extend the maintenance time. The second level of dirt corresponds to a moderate level of dirt, at which point the normal cleaning method described in the above embodiments can be used to clean the air conditioner. If the current level of dirt is the third level of dirt, it can be determined that the air conditioner is in a heavily dirty state. However, if the maintenance time is further extended beyond the above embodiments, it may lead to problems such as compressor liquid return and excessively high system pressure. Therefore, the maintenance time cannot be extended further. Therefore, after the first maintenance time has been extended and defrosting has occurred, the air conditioner cleaning mode can be activated again according to the cleaning method described in the above embodiments.

[0091] To better implement the method of this application, in some embodiments of this application, after determining that the air conditioning cleaning mode is activated, the method further includes:

[0092] Determine the current operating mode of the target air conditioner; if the current operating mode of the target air conditioner is non-cooling mode, switch from non-cooling mode to cooling mode; if the target air conditioner ends the air conditioner cleaning mode, switch from cooling mode back to the previous non-cooling mode; if the current operating mode of the target air conditioner is cooling mode, maintain the cooling mode until the air conditioner cleaning mode ends.

[0093] The above embodiments provide a solution for activating the air conditioner's cleaning mode. According to these embodiments, the air conditioner can increase the amount of defrost water by increasing the amount of frost. However, to further increase the amount of defrost water, the amount of condensation on the evaporator can also be increased, thereby increasing the amount of frost and further increasing the amount of defrost water.

[0094] Specifically, when an air conditioner is in cooling mode, condensation begins to gradually accumulate on the evaporator. Therefore, extending the cooling mode can increase condensation. Thus, in this embodiment, when it is determined that the air conditioner cleaning mode needs to be activated, the current operating mode of the air conditioner can be determined. If the current operating mode is a non-cooling mode, such as a fresh air mode or heating mode, the current non-cooling mode can be switched to a cooling mode. Afterwards, once the air conditioner finishes the cleaning mode, it can switch back to the previous non-cooling mode. For example, if the previous non-cooling mode was a heating mode, then the cooling mode can be switched back to the heating mode. Alternatively, if the target air conditioner's current operating mode is cooling mode, and the user issues a command to turn off the air conditioner or switch the cooling mode to another mode while the air conditioner is running the cleaning mode, the air conditioner can temporarily not respond to the user's command, but maintain the cooling mode until the cleaning mode ends, and then respond to the user's command again.

[0095] To better implement the method of this application, in some embodiments of this application, controlling the current temperature of the evaporator to the frosting temperature and extending the holding time includes:

[0096] Determine the total duration after extending the duration; acquire the current evaporator temperature within the total duration according to the preset sampling time interval; determine the temperature change rate based on the current evaporator temperature; control the compressor frequency in the target air conditioner based on the temperature change rate.

[0097] The above embodiments provide a solution for maintaining the frosting temperature of the evaporator within an extended holding time. However, current air conditioners include inverter air conditioners, so the operating frequency of the air conditioner is constantly changing. Therefore, in order for the evaporator of the air conditioner to maintain the frosting temperature, there will be certain temperature fluctuations, resulting in a poorer frosting effect. Therefore, this application also provides a solution for controlling the operating frequency of the air conditioner.

[0098] Specifically, during the period when the evaporator's current temperature is adjusted to the frosting temperature, i.e., during the operation of the air conditioner's cleaning mode, the air conditioner's main control device can obtain the evaporator temperature transmitted from the temperature sensor on the evaporator in real time. It should be noted that in this embodiment, the evaporator temperature can also refer to the temperature of the evaporator tube within the evaporator, which can be determined based on the location of the temperature sensor; this embodiment does not impose such a limitation. At this time, the main control device can sample the temperature transmitted from the temperature sensor through a pre-set temperature sampling interval to obtain the sampled temperature. Then, the main control device can divide two adjacent sampled temperatures by the temperature sampling interval to obtain the rate of temperature change, and control the air conditioner's operating frequency based on the rate of temperature change. In this embodiment, the advantage of controlling the air conditioner's operating frequency based on the rate of temperature change is that if the rate of temperature change is too fast, and the current temperature is higher than the frosting temperature, the main control device can calculate the time it takes for the evaporator to reach the frosting temperature based on the rate of temperature change and the current temperature. However, the evaporator temperature does not change immediately after the compressor frequency changes. In other words, the evaporator temperature change lags behind the compressor frequency change. If the evaporator temperature has already reached the frosting temperature, adjusting the compressor frequency at this point may cause the evaporator temperature to drop further, potentially leading to icing. However, icing can cause the air conditioner to malfunction. Therefore, this situation should be avoided.

[0099] In this embodiment, if the evaporator's temperature change rate indicates a rapid temperature drop, and the current temperature has not yet reached the frosting temperature, the compressor frequency can be appropriately reduced. This reduces the compressor's cooling effect, preventing the evaporator from continuing to drop in temperature after reaching the frosting temperature. Simultaneously, by appropriately reducing the compressor frequency, the evaporator temperature will still reach the frosting temperature due to previous operating inertia. Furthermore, after the compressor frequency is reduced, if the evaporator temperature reaches the frosting temperature, the evaporator will slowly heat up, re-establishing a rate of temperature increase. At this point, the compressor frequency can be increased again.

[0100] To better implement the method of this application, in some embodiments of this application, the frequency of the compressor in the target air conditioner is controlled according to the rate of temperature change, including:

[0101] If the temperature change rate is in the first rate range, the compressor's current frequency is increased by the first frequency value, and the opening degree of the target electronic expansion valve in the target air conditioner is decreased; if the temperature change rate is in the second rate range, the compressor's frequency is not adjusted; if the temperature change rate is in the third rate range, the compressor's current frequency is decreased by the first frequency value; if the temperature change rate is in the fourth rate range, the compressor's current frequency is decreased by the second frequency value; if the temperature change rate is in the fifth rate range, the compressor's current frequency is decreased by the second frequency value, and the fan in the target air conditioner is started; wherein, the first rate range is smaller than the second rate range, the second rate range is smaller than the third rate range, the third rate range is smaller than the fourth rate range, the fourth rate range is smaller than the fifth rate range, and the second frequency value is greater than the first frequency value.

[0102] The above embodiments provide a scheme for adjusting the operating frequency of an air conditioner based on the rate of temperature change. This application further provides a more detailed adjustment scheme.

[0103] Specifically, the rate of temperature change can be denoted as 'a'. When a < 0, i.e., the first rate range, the current compressor operating frequency f can be increased by 2Hz (i.e., f + 2), the current expansion valve opening p can be decreased by 20 steps (i.e., -20), and the remaining loads can remain unchanged. a < 0 indicates that the evaporator temperature is rising (this situation rarely occurs), and the evaporator temperature needs to be reduced by increasing the frequency and decreasing the opening.

[0104] When 0 ≤ a < 0.4, i.e., the second rate range, the current logic control remains in operation. Within this range, the evaporator temperature variation is considered acceptable, therefore no adjustment to the logic control is necessary.

[0105] When 0.4 ≤ a < 0.8, which is the third rate range, the current compressor operating frequency f decreases by 2 Hz (i.e., f-2), while the other loads remain unchanged. If a is within this range, it indicates that the evaporator temperature drops rapidly, and reducing the frequency can effectively alleviate this.

[0106] When 0.8 ≤ a < 1, i.e., the fourth rate interval, the current compressor operating frequency f decreases by 4 Hz (i.e., f - 4), while the remaining load remains unchanged. Since a is within this range, it indicates that the evaporator temperature drops rapidly, requiring a further reduction in frequency to increase the evaporator temperature.

[0107] When a ≥ 1, i.e., the fifth rate range, the current compressor operating frequency f decreases by 4 Hz (i.e., f - 4), while the internal fan starts and runs at a silent speed (i.e., r = silent speed), and the remaining load remains unchanged. When a is within this range, it indicates that the evaporator temperature drops very rapidly. Therefore, it is necessary to reduce the frequency while simultaneously starting the fan to force convection and remove the cold air from the internal tubes, quickly raising the evaporator temperature.

[0108] It should be noted that the specific values ​​of each temperature rate range in the embodiments of this application can also be set according to the actual situation, and the specific embodiments of this application are not limited.

[0109] To better implement the air conditioner control method in the embodiments of this application, an air conditioner control device is also provided in the embodiments of this application, such as... Figure 3 As shown, the device 300 includes:

[0110] Module 301 is used to determine the current level of dirtiness of the target air conditioner;

[0111] The determination module 301 is also used to determine whether to activate the air conditioner cleaning mode based on the current level of dirt.

[0112] The acquisition module 302 is used to acquire the duration of the evaporator in the target air conditioner maintaining the frosting temperature if the air conditioner cleaning mode is determined to be started.

[0113] The control module 303 is used to control the current temperature of the evaporator to the frosting temperature and extend the holding time to prolong the frosting time of the evaporator;

[0114] The control module 303 is also used to control the temperature of the evaporator from the frosting temperature to the defrosting temperature after the evaporator has completed operation at the frosting temperature and with an extended holding time.

[0115] The air conditioner control device provided in this application can first determine the dirt level of the air conditioner itself through the determination module 301. If the dirt level is high, the air conditioner's cleaning mode can be activated, preventing situations where the evaporator is too dirty without manual dust removal. Simultaneously, when the air conditioner cleaning mode is activated, the frosting time can be obtained through the acquisition module 302, and then the frosting time of the evaporator can be extended through the control module 303 to increase the amount of frost on the evaporator. Furthermore, when the evaporator temperature reaches the defrosting temperature, the increased frost amount leads to an increased amount of defrost water after defrosting. This increased defrost water carries away excess dust from the evaporator, achieving the effect of eliminating the need for manual defrosting.

[0116] In some embodiments of this application, the determining module 301 is specifically used for:

[0117] Obtain the historical running time of the target air conditioner's last operation of the air conditioning cleaning mode and the current time;

[0118] Determine the target time difference between the current moment and the historical running moments;

[0119] Determine the current level of dirtiness of the target air conditioner based on the target time difference.

[0120] In some embodiments of this application, the determining module 301 is further configured to:

[0121] Obtain the historical average temperature of the evaporator during the last operating time of the target air conditioner and the current average temperature of the evaporator during the current operating time of the target air conditioner;

[0122] Determine the target temperature difference between the current average temperature and the historical average temperature;

[0123] Determine the current level of dirtiness of the target air conditioner based on the target temperature difference.

[0124] In some embodiments of this application, the determining module 301 is further configured to:

[0125] If the current level of dirt is Level 1, the air conditioner cleaning mode will not be activated.

[0126] If the current dirt level is level two, then activate the air conditioner cleaning mode;

[0127] If the current dirt level is level 3, then the air conditioner cleaning mode will be activated twice.

[0128] In some embodiments of this application, the control module 303 is specifically used for:

[0129] Determine the current operating mode of the target air conditioner;

[0130] If the target air conditioner is currently in non-cooling mode, then switch the non-cooling mode to cooling mode.

[0131] If the target air conditioner ends the air conditioner cleaning mode, the cooling mode will be switched back to the previous non-cooling mode.

[0132] If the target air conditioner is currently in cooling mode, then maintain cooling mode until the air conditioner cleaning mode ends.

[0133] In some embodiments of this application, the control module 303 is further configured to:

[0134] Determine the total duration after extending the duration;

[0135] Based on the preset sampling time interval, the current evaporator temperature is obtained within the total maintenance time;

[0136] Determine the rate of temperature change based on the current evaporator temperature;

[0137] The frequency of the compressor in the target air conditioner is controlled based on the rate of temperature change.

[0138] In some embodiments of this application, the control module 303 is further configured to:

[0139] If the rate of temperature change is in the first rate range, then the current frequency of the compressor is increased by the first frequency value, and the opening degree of the target electronic expansion valve in the target air conditioner is reduced.

[0140] If the rate of temperature change is in the second rate range, then the compressor frequency is not adjusted;

[0141] If the rate of temperature change is in the third rate range, then reduce the compressor's current frequency to the first frequency value;

[0142] If the rate of temperature change is in the fourth rate range, then the compressor's current frequency is reduced to the second frequency value.

[0143] If the rate of temperature change is in the fifth rate range, the compressor's current frequency is reduced to the second frequency value, and the fan in the target air conditioner is started.

[0144] Among them, the first rate interval is smaller than the second rate interval, the second rate interval is smaller than the third rate interval, the third rate interval is smaller than the fourth rate interval, the fourth rate interval is smaller than the fifth rate interval, and the second frequency value is greater than the first frequency value.

[0145] This application also provides an air conditioner that integrates any of the air conditioner control methods provided in this application, such as... Figure 4 As shown, it illustrates a structural schematic diagram of the air conditioner involved in the embodiments of this application, specifically:

[0146] The air conditioner may include components such as a processor 401 with one or more processing cores, a storage device 402 with one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will understand that... Figure 4 The air conditioner structure shown does not constitute a limitation on the air conditioner and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0147] in:

[0148] The processor 401 is the control center of the air conditioner. It connects to various parts of the air conditioner via various interfaces and lines. By running or executing software programs and / or modules stored in the storage device 402, and by calling data stored in the storage device 402, it performs various functions and processes data, thereby providing overall monitoring of the air conditioner. Optionally, the processor 401 may include one or more processing cores. The processor 401 may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor. Preferably, the processor 401 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 401.

[0149] Storage device 402 can be used to store software programs and modules. Processor 401 executes various functional applications and data processing by running the software programs and modules stored in storage device 402. Storage device 402 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created based on the use of the air conditioner, etc. In addition, storage device 402 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, storage device 402 may also include a memory controller to provide processor 401 with access to storage device 402.

[0150] The air conditioner also includes a power supply 403 that supplies power to the various components. Preferably, the power supply 403 can be logically connected to the processor 401 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 403 may also include one or more DC or AC power supplies, a recharging system, a power fault detection circuit, a power converter or inverter, a power status indicator, or any other components.

[0151] The air conditioner may also include an input unit 404, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0152] Although not shown, the air conditioner may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 401 in the air conditioner loads the executable files corresponding to the processes of one or more application programs into the storage device 402 according to the following instructions, and the processor 401 runs the application programs stored in the storage device 402 to realize various functions, such as:

[0153] Determine the current level of dirtiness of the target air conditioner;

[0154] Determine whether to activate the air conditioner cleaning mode based on the current level of dirt.

[0155] If the air conditioner cleaning mode is activated, obtain the duration for which the evaporator in the target air conditioner maintains the frosting temperature.

[0156] Control the current temperature of the evaporator to the frosting temperature and extend the holding time to prolong the frosting time of the evaporator;

[0157] If the evaporator completes operation at the frosting temperature and after an extended holding time, control the evaporator temperature from the frosting temperature to the defrosting temperature.

[0158] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0159] Therefore, embodiments of this application provide a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk, etc. A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in any of the air conditioner control methods provided in embodiments of this application. For example, the computer program loaded by the processor can execute the following steps:

[0160] Determine the current level of dirtiness of the target air conditioner;

[0161] Determine whether to activate the air conditioner cleaning mode based on the current level of dirt.

[0162] If the air conditioner cleaning mode is activated, obtain the duration for which the evaporator in the target air conditioner maintains the frosting temperature.

[0163] Control the current temperature of the evaporator to the frosting temperature and extend the holding time to prolong the frosting time of the evaporator;

[0164] If the evaporator completes operation at the frosting temperature and after an extended holding time, control the evaporator temperature from the frosting temperature to the defrosting temperature.

[0165] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0166] In practice, each of the above units or structures can be implemented as an independent entity or can be arbitrarily combined to be implemented as the same or several entities. For the specific implementation of each of the above units or structures, please refer to the previous method embodiments, which will not be repeated here.

[0167] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0168] The above provides a detailed description of an air conditioner control method and apparatus provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An air conditioner control method, characterized in that, The method includes: Determine the current level of dirtiness of the target air conditioner; Based on the current level of dirt, determine whether to activate the air conditioner cleaning mode; If the air conditioner cleaning mode is activated, obtain the duration for which the evaporator in the target air conditioner maintains the frosting temperature. Control the current temperature of the evaporator to the frosting temperature and extend the holding time to prolong the frosting time of the evaporator; The control of the evaporator's current temperature to the frosting temperature and the extension of the holding time include: Determine the total duration after extending the duration; The current evaporator temperature is obtained within the total maintenance time according to a preset sampling time interval. Determine the rate of temperature change based on the current evaporator temperature; The frequency of the compressor in the target air conditioner is controlled according to the rate of temperature change. The step of controlling the frequency of the compressor in the target air conditioner according to the rate of temperature change includes: If the rate of temperature change is in the first rate range, then the current frequency of the compressor is increased by a first frequency value, and the opening degree of the target electronic expansion valve in the target air conditioner is decreased. If the rate of temperature change is in the second rate range, then the frequency of the compressor is not adjusted; If the rate of temperature change is within the third rate range, then the current frequency of the compressor is reduced by the first frequency value; If the rate of temperature change is in the fourth rate range, then the current frequency of the compressor is reduced by the second frequency value; If the rate of temperature change is within the fifth rate range, the current frequency of the compressor is reduced to the second frequency value, and the fan in the target air conditioner is started. Wherein, the first rate interval is smaller than the second rate interval, the second rate interval is smaller than the third rate interval, the third rate interval is smaller than the fourth rate interval, the fourth rate interval is smaller than the fifth rate interval, and the second frequency value is greater than the first frequency value. If the evaporator completes operation at the frosting temperature and after an extended maintenance time, the temperature of the evaporator is controlled from the frosting temperature to the defrosting temperature.

2. The air conditioner control method according to claim 1, characterized in that, Determining the current dirt level of the target air conditioner includes: Obtain the historical running time of the last time the target air conditioner ran the air conditioner cleaning mode and the current time; Determine the target time difference between the current time and the historical running time; The current level of dirtiness of the target air conditioner is determined based on the target time difference.

3. The air conditioner control method according to claim 1, characterized in that, Determining the current dirt level of the target air conditioner includes: Obtain the historical average temperature of the evaporator during the last operating time of the target air conditioner and the current average temperature of the evaporator during the current operating time of the target air conditioner; Determine the target temperature difference between the current average temperature and the historical average temperature; The current level of dirtiness of the target air conditioner is determined based on the target temperature difference.

4. The air conditioner control method according to claim 1, characterized in that, The step of determining whether to activate the air conditioner cleaning mode based on the current level of dirt includes: If the current level of dirt is the first level of dirt, then the air conditioner cleaning mode will not be activated; If the current level of dirt is level two, then the air conditioner cleaning mode is activated; If the current dirt level is level three, then the air conditioner cleaning mode will be activated twice.

5. The air conditioner control method according to claim 1, characterized in that, If it is determined that the air conditioner cleaning mode is activated, the method further includes: Determine the current operating mode of the target air conditioner; If the current operating mode of the target air conditioner is non-cooling mode, then the non-cooling mode is converted to cooling mode; If the target air conditioner ends the air conditioner cleaning mode, then the cooling mode is switched back to the previous non-cooling mode; If the target air conditioner is currently operating in the cooling mode, then the cooling mode will be maintained until the air conditioner cleaning mode ends.

6. An air conditioner control device, characterized in that, The device includes: The determination module is used to determine the current level of dirtiness of the target air conditioner; The determination module is also used to determine whether to activate the air conditioner cleaning mode based on the current level of dirt. The acquisition module is used to acquire the duration of the evaporator in the target air conditioner maintaining the frosting temperature if the air conditioner cleaning mode is determined to be activated. A control module is used to control the current temperature of the evaporator to the frosting temperature and extend the holding time to prolong the frosting time of the evaporator; The control of the evaporator's current temperature to the frosting temperature and the extension of the holding time include: Determine the total duration after extending the duration; The current evaporator temperature is obtained within the total maintenance time according to a preset sampling time interval. Determine the rate of temperature change based on the current evaporator temperature; The frequency of the compressor in the target air conditioner is controlled according to the rate of temperature change. The step of controlling the frequency of the compressor in the target air conditioner according to the rate of temperature change includes: If the rate of temperature change is in the first rate range, then the current frequency of the compressor is increased by a first frequency value, and the opening degree of the target electronic expansion valve in the target air conditioner is decreased. If the rate of temperature change is in the second rate range, then the frequency of the compressor is not adjusted; If the rate of temperature change is within the third rate range, then the current frequency of the compressor is reduced by the first frequency value; If the rate of temperature change is in the fourth rate range, then the current frequency of the compressor is reduced by the second frequency value; If the rate of temperature change is within the fifth rate range, the current frequency of the compressor is reduced to the second frequency value, and the fan in the target air conditioner is started. Wherein, the first rate interval is smaller than the second rate interval, the second rate interval is smaller than the third rate interval, the third rate interval is smaller than the fourth rate interval, the fourth rate interval is smaller than the fifth rate interval, and the second frequency value is greater than the first frequency value. The control module is also configured to control the temperature of the evaporator from the frosting temperature to the defrosting temperature after the evaporator has completed operation at the frosting temperature and with an extended holding time.

7. An air conditioner, characterized in that, The air conditioner includes a processor, a memory, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the steps of the air conditioner control method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that is executed by a processor to implement the steps of the air conditioner control method according to any one of claims 1 to 5.

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