Anti-condensation control method and device, air conditioning equipment and storage medium

Abstract

The application provides a condensation prevention control method and device, air conditioning equipment and a storage medium. The method comprises the following steps: in the case that the air conditioning equipment is in a condensation prevention mode, determining the demand for cold energy according to a first temperature difference value between an ambient temperature and a first set temperature and a fan gear; determining a target condensation prevention temperature difference value corresponding to the first temperature difference value and the fan gear based on the demand for cold energy, which improves the accuracy of the determination of the condensation prevention temperature difference value; adjusting the target condensation prevention temperature difference value according to the running time; determining the expected temperature of an evaporator based on the adjusted target condensation prevention temperature difference value; adjusting the running frequency of a compressor based on the difference between the expected temperature and an actual temperature, so that the refrigeration demand is fully considered in the process of condensation prevention, and the condensation risk is reduced while the refrigeration effect is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic control, and in particular to a condensation prevention control method and device, an air conditioning device, and a storage medium. BACKGROUND

[0002] When an air conditioning device operates in a high-humidity environment, water vapor in the air will condense on the surface of an indoor heat exchanger or an air duct when the surface temperature of the indoor heat exchanger is lower than the dew point temperature, generating fine water droplets, i.e., condensation. Too much condensation will not only affect the cooling effect, but also cause adverse after-sales problems such as water blowing from the air duct. Therefore, condensation prevention needs to be performed.

[0003] In related technologies, the cooling effect cannot be guaranteed during condensation prevention. SUMMARY

[0004] The present application aims to at least partially solve one of the technical problems in related technologies.

[0005] To this end, the present application proposes a condensation prevention control method and device, an air conditioning device, and a storage medium to ensure the cooling effect while performing condensation prevention control.

[0006] An embodiment of the present application provides a condensation prevention control method, comprising:

[0007] In a case where an air conditioning device is in a condensation prevention mode, determining a dew point temperature, an ambient temperature, and a fan gear of the air conditioning device;

[0008] Determining a target condensation prevention temperature difference according to a first temperature difference between the ambient temperature and a first set temperature, and the fan gear;

[0009] Determining a desired temperature of an evaporator of the air conditioning device according to a running duration of the air conditioning device, the target condensation prevention temperature difference, and the dew point temperature;

[0010] Adjusting a running frequency of a compressor of the air conditioning device according to the desired temperature and an actual temperature of the evaporator.

[0011] Another embodiment of the present application provides a condensation prevention control device, comprising:

[0012] A first determining module configured to determine a dew point temperature, an ambient temperature, and a fan gear of an air conditioning device in a case where the air conditioning device is in a condensation prevention mode;

[0013] A second determining module configured to determine a target condensation prevention temperature difference according to a first temperature difference between the ambient temperature and a first set temperature, and the fan gear;

[0014] a third determining module, configured to determine a desired temperature of an evaporator of the air conditioning device according to a running length of the air conditioning device, the target anti-condensation temperature difference and the dew point temperature;

[0015] an adjusting module, configured to adjust a running frequency of a compressor of the air conditioning device according to the desired temperature and an actual temperature of the evaporator.

[0016] In an aspect of the present application, an air conditioning device is provided, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to the foregoing aspect when executing the program.

[0017] In an aspect of the present application, a non-transitory computer readable storage medium is provided, which stores a computer program, wherein the program is executable by a processor to implement the method according to the foregoing aspect.

[0018] In an aspect of the present application, a computer program product is provided, which stores a computer program, wherein the program is executable by a processor to implement the method according to the foregoing aspect.

[0019] The anti-condensation control method, device, air conditioning device and storage medium provided by the present application can determine the demand for cold energy according to the first temperature difference between the ambient temperature and the first set temperature and the fan gear when the air conditioning device is in the anti-condensation mode, determine the target anti-condensation temperature difference corresponding to the first temperature difference and the fan gear based on the demand for cold energy, improve the accuracy of the determination of the anti-condensation temperature difference, adjust the target anti-condensation temperature difference according to the running length, determine the desired temperature of the evaporator based on the adjusted target anti-condensation temperature difference, adjust the running frequency of the compressor based on the difference between the desired temperature and the actual temperature, and realize the full consideration of the refrigeration demand in the process of anti-condensation, and realize the reduction of the condensation risk while ensuring the refrigeration effect.

[0020] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1 A flowchart of an anti-condensation control method provided by an embodiment of the present application;

[0023] Figure 2A flowchart of another anti-condensation control method provided by an embodiment of the present application is shown in FIG. 2.

[0024] Figure 3 A flowchart of another anti-condensation control method provided by an embodiment of the present application is shown in FIG. 2.

[0025] Figure 4 A structural diagram of an anti-condensation control device provided by an embodiment of the present application is shown in FIG. 3.

[0026] Figure 5 A structural diagram of an air conditioning device provided by an embodiment of the present application is shown in FIG. 4. DETAILED DESCRIPTION

[0027] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which the same or similar notations used throughout the drawings and the specific description denote the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0028] The anti-condensation control method, device, air conditioning device and storage medium provided by the embodiments of the present application are described below with reference to the accompanying drawings.

[0029] Figure 1 A flowchart of an anti-condensation control method provided by an embodiment of the present application is shown in FIG. 1.

[0030] The execution subject of the anti-condensation control method of the embodiments of the present application is an anti-condensation control device, which can be arranged in an air conditioning device, such as an air conditioner, a refrigerator, a dehumidifier, etc., and is not limited in the present embodiment.

[0031] As shown in FIG. 1, the method can include the following steps: Figure 1

[0032] Step 101, in the case that the air conditioning device is in an anti-condensation mode, determining the dew point temperature, the ambient temperature and the fan gear of the air conditioning device in the current indoor environment.

[0033] In the embodiments of the present application, the air conditioning device is in a cooling mode or a dehumidifying mode, and is operated for a set duration, such as 20 minutes to 40 minutes, and then it is determined whether to enter an anti-condensation control mode. In the case that the following conditions are met, it is determined that the air conditioning device enters the anti-condensation mode:

[0034] 1) the air conditioning device is in a cooling mode;

[0035] 2) the indoor ambient temperature is less than or equal to a first limit value (the first limit value is 28-30℃) of the indoor ambient temperature for entering the anti-condensation mode;

[0036] ​3) the outdoor ambient temperature is less than or equal to a second limit value of the entering anti-condensation outdoor ambient temperature (the second limit value is 26-35℃);

[0037] 4) the indoor relative humidity is greater than or equal to an entering anti-condensation indoor humidity limit value (the indoor humidity limit value is 70-75%)

[0038] It should be noted that when there is no humidity sensor, or the humidity sensor detection value is 0%, or the humidity sensor is faulty, the fourth humidity condition is not judged.

[0039] The dew point temperature is the temperature at which the gaseous water contained in the air needs to be reduced to reach saturation and condense into liquid water. As an implementation, an air enthalpy humidity table is obtained, wherein the air enthalpy humidity table includes the dew point temperature corresponding to each humidity value, so that the indoor humidity value is looked up in the air enthalpy humidity table to determine the dew point temperature corresponding to the indoor humidity value. The indoor humidity value can be obtained based on the humidity sensor of the air conditioning device. If the air conditioning device does not have a humidity sensor, the set humidity value can be used as the indoor humidity value, for example, the set humidity value is 70% to 80%, and the value of the set humidity value is not limited in this embodiment.

[0040] The current ambient temperature can be detected by a temperature sensor in the air conditioning device. The indoor fan gear of the air conditioning device, i.e., the fan gear set by the current air conditioning device, is, for example, any gear in 1-5 gears, wherein the larger the fan gear, the more cold output during cooling, and the smaller the gear, the less cold output during cooling.

[0041] Step 102, determining a target anti-condensation temperature difference value according to a first temperature difference value between the ambient temperature and a first set temperature, and the fan gear.

[0042] The first set temperature is a target value of the indoor temperature that the user sets for the air conditioning device to reach through cooling, for example, the first set temperature is 25 degrees Celsius, i.e., the user hopes to cool the indoor temperature to 25 degrees Celsius.

[0043] The target anti-condensation temperature difference value indicates the difference between the temperature of the evaporator in the indoor unit of the air conditioning device and the dew point temperature in the case of achieving anti-condensation.

[0044] It should be noted that the temperature of the evaporator, i.e., the temperature of the evaporator coil.

[0045] In the embodiment of the present application, the air conditioning device is in the refrigeration mode, and the first temperature difference value changes with the increase of the refrigeration time. In order to improve the accuracy of the target anti-condensation temperature difference value, the target anti-condensation temperature difference value can be determined according to the first temperature difference value between the real-time detected ambient temperature and the first set temperature, and the fan gear. That is, when the first temperature difference value changes and / or the fan gear changes, the target anti-condensation temperature difference value also changes, thereby avoiding the target anti-condensation temperature difference value being constant all the time and improving the accuracy.

[0046] In step 103, the expected temperature of the evaporator of the air conditioning device is determined according to the running time of the air conditioning device, the target anti-condensation temperature difference value, and the dew point temperature.

[0047] In the embodiment of the present application, the demand for cold energy changes during the refrigeration process. The demand for cold energy is high at the initial stage of air conditioning refrigeration, and decreases with the progress of refrigeration. The demand for cold energy is related to the refrigeration time. When the refrigeration time is short, the demand for cold energy is large, and when the refrigeration time is long, the demand for cold energy decreases. Therefore, the target anti-condensation temperature difference value is adjusted based on the running time of the air conditioning device to obtain an adjusted target anti-condensation temperature difference value considering the time factor. Then, the expected temperature of the evaporator of the air conditioning device is obtained by subtracting the adjusted target anti-condensation temperature difference value from the dew point temperature, wherein the expected temperature indicates the temperature to which the evaporator needs to be adjusted.

[0048] In step 104, the running frequency of the compressor of the air conditioning device is adjusted according to the expected temperature and the actual temperature of the inner tube of the evaporator.

[0049] In the embodiment of the present application, the temperature range of the inner tube of the evaporator can be determined according to the calculated expected temperature. The actual temperature of the inner tube of the evaporator measured is compared with the determined temperature range to determine how to adjust the running frequency of the compressor of the air conditioning device for condensation control. By adjusting the running frequency of the compressor, the temperature of the inner tube of the evaporator is adjusted so that the temperature of the inner tube of the evaporator is within the range that can prevent condensation, thereby improving the control effect of preventing condensation. At the same time, the running time takes into account the demand for cold energy at different stages of refrigeration, thereby ensuring the effect of refrigeration, that is, while ensuring the cold energy output of the air conditioning device, the generation of condensation is slowed down, and the reliability of the anti-condensation control is improved.

[0050] The anti-condensation control method of the embodiments of the present application, in the case that the air conditioning device is in the anti-condensation mode, determines the demand for cold energy according to the first temperature difference between the ambient temperature and the first set temperature and the fan gear, determines the target anti-condensation temperature difference corresponding to the first temperature difference and the fan gear based on the demand for cold energy, improves the accuracy of the determination of the anti-condensation temperature difference, and at the same time, adjusts the target anti-condensation temperature difference according to the running time, determines the expected temperature of the evaporator based on the target anti-condensation temperature difference obtained by the adjustment, adjusts the running frequency of the compressor based on the gap between the expected temperature and the actual temperature, realizes sufficient consideration of the refrigeration demand in the process of anti-condensation, and realizes the reduction of the condensation risk while ensuring the refrigeration effect.

[0051] Based on the above embodiments, Figure 2 Another anti-condensation control method provided by the embodiments of the present application is shown in the flowchart as Figure 2 The method comprises the following steps:

[0052] Step 201, in the case that the air conditioning device is in the anti-condensation mode, the dew point temperature of the current indoor environment, the ambient temperature and the fan gear of the air conditioning device are determined.

[0053] In step 201, the same principles as the above embodiments can be referred to for explanation, and details are not repeated here.

[0054] Step 202, an initial anti-condensation temperature difference is set.

[0055] In the embodiments of the present application, the temperature required to be set for the evaporator of the air conditioning device can be determined according to the determined dew point temperature of the indoor environment, so that the evaporator can realize anti-condensation at the set temperature, that is, to avoid the water vapor in the air from condensing on the surface of the indoor heat exchanger or the surface of the air duct, affecting the refrigeration effect of the air conditioning device, and even causing the problem of water blowing in the air duct. Further, according to the dew point temperature and the demand for anti-condensation, the initial anti-condensation temperature difference can be determined, that is, in the case that the initial anti-condensation temperature difference is met, anti-condensation can be realized.

[0056] Step 203, an adjustment value is determined according to the first temperature difference and the fan gear.

[0057] In the embodiments of the present application, the indoor room cooling demand is determined according to the first temperature difference, and the cooling output of the room is different at different fan positions, for example, the cooling output of the room is less at a lower fan position, and the condensation phenomenon is slightly improved compared to a higher fan position. Therefore, the adjustment value at different fan positions is determined to correct the set condensation prevention temperature difference, so that when the cooling demand is high, the target condensation prevention temperature difference obtained by adjusting the corresponding adjustment value can ensure the cooling output and slow down the generation of condensation phenomenon, and when the cooling demand gradually decreases, the cooling output is reduced and the condensation phenomenon is slowed down.

[0058] Therefore, the first temperature difference and the fan position are different, and the corresponding adjustment value is also different. The adjustment value can be set based on prior experience, and different scenarios will be described below.

[0059] In one scenario, the first temperature difference is compared with the second set temperature and the third set temperature respectively, wherein the third set temperature is greater than the second set temperature. In response to the first temperature difference being greater than the second set temperature, the adjustment value corresponding to the fan position is determined.

[0060] In the second scenario, the first temperature difference is compared with the second set temperature and the third set temperature respectively, wherein the third set temperature is greater than the second set temperature. In response to the first temperature difference being greater than or equal to the third set temperature and less than or equal to the second set temperature, the adjustment value corresponding to the fan position is determined.

[0061] In the third scenario, the first temperature difference is compared with the second set temperature and the third set temperature respectively, wherein the third set temperature is greater than the second set temperature. In response to the first temperature difference being less than the third set temperature, the adjustment value corresponding to the fan position is determined.

[0062] It should be noted that in the process of refrigeration, the refrigeration demand is different in different scenarios, and the adjustment value determined for the same fan position is different under different first temperature differences. Each combination of the first temperature difference and the fan position has a corresponding adjustment value, which meets the different refrigeration demands and the condensation adjustment requirements.

[0063] In step 204, the initial condensation prevention temperature difference is adjusted according to the adjustment value to obtain a target condensation prevention temperature difference.

[0064] In the embodiment of the present application, after the adjustment value is determined, the initial anti-condensation temperature difference is adjusted according to the adjustment value to obtain the target anti-condensation temperature difference, which realizes that the actual refrigeration demand is considered in the process of anti-condensation control, the target anti-condensation temperature difference is obtained by adjusting the initial anti-condensation temperature difference, the accuracy of determining the target anti-condensation temperature difference is improved, and the occurrence of condensation is slowed down while ensuring the cold output of the air conditioning equipment.

[0065] As an example, the indoor fan gear of the air conditioning equipment contains 7 gears, the second set temperature is 1 degree Celsius, and the third set temperature is -1 degree Celsius. The corresponding target anti-condensation temperature difference in various cases is shown in the following Table 1.

[0066] Table 1

[0067]

[0068] Wherein, △T is the initial anti-condensation temperature difference, △T1-△T11 is the determined adjustment value of each set, wherein the adjustment value of the set decreases with the increase of the gear under the condition that the first temperature difference is unchanged; at the same time, under the same fan gear, the greater the first temperature difference, the greater the corresponding adjustment value of the set, that is, △T1-△T11 decreases in turn.

[0069] In step 205, the expected temperature of the evaporator of the air conditioning equipment is determined according to the running length of the air conditioning equipment, the target anti-condensation temperature difference and the dew point temperature.

[0070] Wherein, the step 205 can refer to the explanation and description in the foregoing embodiments, the principle is the same, and details are not repeated here.

[0071] In step 206, the running frequency of the compressor of the air conditioning equipment is adjusted according to the expected temperature and the actual temperature of the evaporator.

[0072] In an implementation manner of the embodiment of the present application, based on the power adjustment mode in different scenarios shown in Table 2:

[0073] Table 2

[0074]

[0075]

[0076] Wherein, Tconventional 1 and Tconventional 2 are the set temperature adjustment range, which increases the tolerance range and improves the accuracy of frequency adjustment.

[0077] In the embodiment of the present application, according to the expected temperature and the set temperature adjustment range, the temperature interval corresponding to the evaporator is determined in the case of meeting the refrigerating capacity while slowing down the occurrence of condensation phenomenon, and then according to the temperature interval to which the actual temperature of the evaporator belongs, the adjustment strategy of the corresponding compressor operating frequency is determined, and according to the corresponding compressor operating frequency adjustment strategy, the operating frequency of the compressor of the air conditioning equipment is adjusted, so as to realize the slow down of the condensation phenomenon while ensuring the cold output of the air conditioning equipment, and improve the reliability of the anti-condensation control.

[0078] In the anti-condensation control method of the embodiment of the present application, during the anti-condensation control, the compressor operating frequency is controlled by judging the indoor environment temperature, humidity, fan gear and running time, so as to improve the condensation phenomenon while ensuring the output of indoor cold, ensure the user's refrigeration comfort, and avoid the safety problems caused by the condensation phenomenon, and improve the reliability of the anti-condensation control.

[0079] Based on the above embodiment, Figure 3 Another flowchart of the anti-condensation control method provided by the embodiment of the present application is shown in Figure 3 As shown in the figure, the method comprises the following steps:

[0080] Step 301, in the case that the air conditioning equipment is in the anti-condensation mode, the dew point temperature, the environment temperature and the fan gear of the air conditioning equipment in the current indoor environment are determined.

[0081] Step 302, according to the first temperature difference between the environment temperature and the first set temperature, and the fan gear, the target anti-condensation temperature difference is determined.

[0082] Wherein, the explanation and description in the foregoing method embodiment are also applicable to step 301 and step 302 of the present embodiment, and the principle is the same, which will not be repeated here.

[0083] Step 303, according to the running time of the air conditioning equipment, the corresponding time coefficient is determined.

[0084] Wherein, the time coefficient and the running time are in inverse proportional relationship.

[0085] In the embodiment of the present application, according to the running time of the air conditioning equipment, when the air conditioning running time is short, the condensation phenomenon is better, at this time, the cold output is mainly considered, the indoor temperature and humidity are reduced, and the evaporator tube temperature is limited to be too low to slow down the deterioration of the condensation phenomenon; when the air conditioning running time gradually increases, the condensation phenomenon gradually deteriorates, at this time, the reliability is mainly considered, the evaporator tube temperature is increased to ensure that the condensation does not deteriorate.

[0086] In the embodiment of the application, the time length coefficient corresponding to the actual operation time length of the air conditioning device can be determined according to the corresponding relationship between the actual operation time length and the time length coefficient. As an implementation manner, the set operation time length can be set to include a first time length and a second time length, the second time length being greater than the first time length. The corresponding time length coefficient can be determined according to the interval of the set operation time length to which the actual operation time length belongs.

[0087] In one scenario, the operation time length of the air conditioning device is less than the first time length, and the time length coefficient is a first set value, for example, [1.2, 1.4];

[0088] In a second scenario, the operation time length of the air conditioning device is greater than or equal to the first time length and less than the second time length, and the time length coefficient is a second set value, for example, [1.1, 1.2).

[0089] In a third scenario, the operation time length of the air conditioning device is greater than the second time length, and the time length coefficient is a third set value, for example, 1.

[0090] It should be noted that the values of the time length coefficient, the first time length and the second time length can be set according to requirements, and are not limited in the embodiment.

[0091] In step 304, the target anti-condensation temperature difference is adjusted according to the time length coefficient to determine an adjusted target anti-condensation temperature difference.

[0092] In one implementation manner of the embodiment of the application, the time length coefficient is multiplied by the target anti-condensation temperature difference to obtain the adjusted target anti-condensation temperature difference, that is, the following relationship is satisfied:

[0093] Adjusted target anti-condensation temperature difference = time length coefficient * target anti-condensation temperature difference.

[0094] In step 305, the expected temperature of the evaporator is determined according to the difference between the dew point temperature and the adjusted target anti-condensation temperature difference.

[0095] The expected temperature satisfies the following relationship:

[0096] Expected temperature = dew point temperature - adjusted target anti-condensation temperature difference.

[0097] In step 306, the operation frequency of the compressor of the air conditioning device is adjusted according to the expected temperature and the actual temperature of the evaporator.

[0098] The explanation and description in the foregoing method embodiment also apply to step 306 of the embodiment, and the principle is the same, which will not be described here.

[0099] The condensation control method of the embodiments of the present application is better when the air conditioner is running for a short time, at which time cold output is mainly used to reduce indoor temperature and humidity, while limiting the temperature of the inner tube of the evaporator from being too low to slow down the deterioration of condensation. When the air conditioner is running for a gradually increasing length of time, the condensation gradually deteriorates, at which time reliability is mainly used to increase the temperature of the inner tube of the evaporator to ensure that condensation does not deteriorate.

[0100] Based on the above embodiments, in order to further clearly illustrate the condensation control method, the following describes specific scenarios:

[0101] The data collected by the temperature sensor arranged on the air conditioning equipment determines that the indoor environment temperature is 28°C and the outdoor environment temperature is 32°C. The data collected by the humidity sensor determines that the indoor humidity is 80%, and the condensation temperature difference is a set value determined based on prior experience. When the user starts the air conditioning equipment and runs in the cooling mode, the first set temperature is 25°C, the fan gear of the indoor unit is 4 gears, and after running for 20 minutes, it is determined to enter the condensation control mode based on the detection of the condensation condition.

[0102] According to the indoor humidity value and the pre-recorded air enthalpy table, the dew point temperature is calculated to be 22°C;

[0103] At this time, based on the detection data, it is determined that the indoor environment temperature is 28°C, the fan gear is 4 gears, and the condensation temperature difference is set to 6°C. According to the first temperature difference between the indoor environment temperature and the first set temperature and the fan gear, the set adjustment value is determined to be 1.6°C, so the target condensation temperature difference = initial condensation temperature difference + adjustment value = 6 + 1.6 = 7.6°C.

[0104] The set first time length is determined to be 1 hour, and when the running time of the air conditioning equipment < the first time length, i.e. 1 hour, the time length coefficient K takes the value 1.3, the expected temperature of the evaporator = dew point temperature - target condensation temperature difference * K = 22 - 7.6 * 1.3 = 12.12°C, and then the compressor operating frequency is adjusted according to the expected temperature and the actual temperature of the inner tube of the evaporator. At present, the expected temperature of the evaporator is relatively low, which can ensure the refrigeration effect.

[0105] When the air conditioning equipment continues to run, the set second time length is 2 hours, the first time length ≤ the running time of the air conditioner < the second time length, and the time length coefficient K takes a lower value of 1.1, the expected temperature of the evaporator = dew point temperature - target condensation temperature difference * K = 22 - 7.6 * 1.1 = 13.64°C, and then the compressor operating frequency is adjusted according to the expected temperature and the actual temperature of the inner tube of the evaporator, wherein the expected temperature of the evaporator increases with the increase of the running time of the air conditioner to reduce the risk of condensation.

[0106] When the indoor temperature decreases from 28℃ to 26℃, the difference between the indoor ambient temperature and the first set temperature is 1℃, the room temperature is close to the first set temperature, and it is more comfortable, the cooling capacity output can be reduced, and the temperature of the evaporator is increased to ensure the reliability of the anti-condensation capability. Then, according to the first temperature difference between the indoor ambient temperature and the first set temperature and the fan gear, the set adjustment value corresponding to the initial anti-condensation temperature difference is re-determined, for example, the adjustment value is 0.6, and the target anti-condensation temperature difference = initial anti-condensation temperature difference + adjustment value = 6 + 0.6 = 6.6℃;

[0107] The expected temperature of the evaporator = dew point temperature - target anti-condensation temperature difference * K = 22 - 6.6 * 1.1 = 14.74℃.

[0108] As the air conditioning regulating device operates, when the operating time of the air conditioning regulating device is greater than or equal to the second operating time, i.e., 2h, the time coefficient K takes the value 1, the expected temperature of the evaporator = dew point temperature - target anti-condensation temperature difference * K = 22 - 6.6 * 1 = 15.4℃, and then the operating frequency of the compressor is regulated according to the expected temperature and the actual temperature of the inner tube of the evaporator. The expected temperature of the evaporator increases with the increase of the operating time of the air conditioner, and the risk of condensation is reduced. If the indoor temperature changes, the expected temperature of the evaporator is corrected again according to the logical judgment to improve the accuracy.

[0109] Wherein, when any of the following conditions is met, the anti-condensation mode is exited:

[0110] a. Entering other modes such as heating mode, air supply mode;

[0111] b. The indoor ambient temperature is greater than or equal to the anti-condensation indoor ambient temperature limit + 1℃;

[0112] c. The outdoor ambient temperature is greater than or equal to the anti-condensation outdoor ambient temperature limit + 1℃;

[0113] d. The indoor relative humidity is less than or equal to the anti-condensation indoor humidity limit - 10%. (If there is no humidity sensor, the humidity sensor detects 0%, and the humidity sensor is faulty, the condition is not judged.)

[0114] In the anti-condensation control method of the embodiment of the application, during the anti-condensation control, the compressor frequency is controlled by judging the indoor ambient temperature, humidity, fan gear and operating time, the condensation phenomenon is improved while ensuring the output of indoor cooling capacity, the user's cooling comfort is ensured, the safety problem caused by the condensation phenomenon is avoided, and the reliability of the anti-condensation control is improved.

[0115] In order to realize the above-mentioned embodiments, an anti-condensation control device is further provided in the embodiments of the application.

[0116] Figure 4A structural schematic diagram of a condensation prevention control device provided in an embodiment of the present application.

[0117] As shown in Figure 4 the device can include:

[0118] A first determining module 41 is configured to determine a dew point temperature, an ambient temperature and a fan gear of the air conditioning device in a condensation prevention mode.

[0119] A second determining module 42 is configured to determine a target condensation prevention temperature difference according to a first temperature difference between the ambient temperature and a first set temperature and the fan gear.

[0120] A third determining module 43 is configured to determine an expected temperature of an evaporator of the air conditioning device according to a running time of the air conditioning device, the target condensation prevention temperature difference and the dew point temperature.

[0121] An adjusting module 44 is configured to adjust a running frequency of a compressor of the air conditioning device according to the expected temperature and an actual temperature of the evaporator.

[0122] Further, in an implementation form of the embodiment of the present application, the second determining module 42 is configured to:

[0123] obtain an initial condensation prevention temperature difference;

[0124] determine an adjustment value according to the first temperature difference and the fan gear;

[0125] adjust the initial condensation prevention temperature difference according to the adjustment value to obtain the target condensation prevention temperature difference.

[0126] In an implementation form of the embodiment of the present application, the second determining module 42 is specifically configured to:

[0127] compare the first temperature difference with a second set temperature and a third set temperature respectively; wherein the third set temperature is greater than the second set temperature;

[0128] determine an adjustment value corresponding to the fan gear in response to the first temperature difference being greater than the second set temperature;

[0129] determine an adjustment value corresponding to the fan gear in response to the first temperature difference being greater than or equal to the third set temperature and less than or equal to the second set temperature;

[0130] determine an adjustment value corresponding to the fan gear in response to the first temperature difference being less than the third set temperature.

[0131] In an implementation form of the embodiment of the application, the third determining module 43 is specifically configured to:

[0132] determine a corresponding duration coefficient according to the running duration of the air conditioning device, wherein the duration coefficient and the running duration are in an inverse proportional relationship;

[0133] adjust the target anti-condensation temperature difference according to the duration coefficient to determine an adjusted target anti-condensation temperature difference;

[0134] determine the expected temperature of the evaporator according to a difference between the dew point temperature and the adjusted target anti-condensation temperature difference.

[0135] In an implementation form of the embodiment of the application, the adjusting module 44 is specifically configured to:

[0136] determine a second temperature difference between the actual temperature and the expected temperature;

[0137] in response to the second temperature difference being in a set first temperature interval, reduce the running frequency of the compressor at a set frequency reduction speed;

[0138] in response to the second temperature difference being in a set second temperature interval, increase the running frequency of the compressor at a set frequency increase speed;

[0139] in response to the second temperature difference being in a set third temperature interval, prohibit adjusting the running frequency of the compressor.

[0140] In an implementation form of the embodiment of the application, the first determining module is specifically configured to:

[0141] obtain a set air enthalpy-humidity table;

[0142] determine the dew point temperature according to a current indoor humidity value by searching the air enthalpy-humidity table.

[0143] It should be noted that the foregoing explanation and description of the method embodiment are also applicable to the device of this embodiment, which will not be described here again.

[0144] The application provides a condensation prevention control device. In the case that an air conditioning device is in a condensation prevention mode, a first temperature difference between an ambient temperature and a first set temperature is determined, and a demand for cooling capacity is determined according to the first temperature difference and a fan gear. A target condensation prevention temperature difference corresponding to the first temperature difference and the fan gear is determined based on the demand for cooling capacity. The accuracy of the determination of the condensation prevention temperature difference is improved. Meanwhile, the target condensation prevention temperature difference is adjusted according to a running time length. A desired temperature of an evaporator is determined based on the adjusted target condensation prevention temperature difference. The running frequency of a compressor is adjusted based on a difference between the desired temperature and an actual temperature. In the process of preventing condensation, the refrigeration demand is fully considered, and the condensation risk is reduced while the refrigeration effect is ensured.

[0145] To achieve the above-mentioned embodiments, the application further provides an air conditioning device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method as described in the foregoing method embodiments when executing the program.

[0146] To achieve the above-mentioned embodiments, the application further provides a non-transitory computer-readable storage medium having a computer program stored thereon, wherein the program is executable by a processor to implement the method as described in the foregoing method embodiments.

[0147] To achieve the above-mentioned embodiments, the application further provides a computer program product having a computer program stored thereon, wherein the computer program is executable by a processor to implement the method as described in the foregoing method embodiments.

[0148] Figure 5 A block diagram of an air conditioning device is provided for the embodiments of the application. For example, the air conditioning device 800 can be an air conditioner, an air purifier, a dehumidifier, a refrigerator, etc.

[0149] Reference Figure 5 The air conditioning device 800 can include one or more of the following components: a processing component 802, a memory component 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0150] The processing component 802 usually controls overall operations of the air conditioning device 800, such as operations associated with displaying, making phone calls, data communications, camera operations and recording operations. The processing component 802 can include one or more processors 820 to execute instructions to complete all or part of the steps of the methods described above. In addition, the processing component 802 can include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0151] The memory 804 is configured to store various types of data to support the operation of the air conditioning device 800. Examples of such data include instructions for any application programs or methods operating on the air conditioning device 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 can be implemented by any type of volatile or nonvolatile memory, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disc, or optical disc.

[0152] The power component 806 provides power to various components of the air conditioning device 800. The power component 806 can include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the air conditioning device 800.

[0153] The multimedia component 808 includes a screen providing an output interface between the air conditioning device 800 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide, and a gesture on the touch panel. The touch sensor can not only sense a boundary of a touching or a sliding action, but also detect duration and pressure related to the touching or sliding action.

[0154] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC) configured to receive external audio signals when the air conditioning device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0155] The I / O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which can be a keypad, a click wheel, buttons, and the like.

[0156] The sensor component 814 includes one or more sensors for providing various aspects of state assessment for the air conditioning device 800. For example, the sensor component 814 can detect an on / off state of the air conditioning device 800, relative positioning of components, such as a display and keypad of the air conditioning device 800, a change in position of the air conditioning device 800 or a component of the air conditioning device 800, presence or absence of user contact with the air conditioning device 800, orientation or acceleration / deceleration of the air conditioning device 800, and temperature change of the air conditioning device 800. The sensor component 814 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor component 814 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 814 can also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0157] The communication component 816 is configured to facilitate wired or wireless communication between the air conditioning device 800 and other devices. The air conditioning device 800 can access a wireless network based on a communication standard, such as WiFi, 4G, or 5G, or a combination thereof. In an example embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an example embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0158] In an example embodiment, the air conditioning device 800 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic elements for performing the above-described methods.

[0159] In an example embodiment, a non-transitory computer-readable storage medium including instructions, such as the memory 804 including instructions, is also provided, which can be executed by the processor 820 of the air conditioning device 800 to complete the above-described methods. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0160] In the description of the application, reference to "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Moreover, the usage of the terms "first", "second" or "third" does not limit the quantity or order of the specific features, structures, materials or characteristics, but rather the term "first", "second" or "third" can be used to distinguish the specific features, structures, materials or characteristics from one another. In addition, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples, without changing the scope of the application.

[0161] Furthermore, the terms "first", "second", or the like do not denote any quantity or order, but rather serve as labels to distinguish between different instances of an element. Thus, a feature labeled "first" can imply or be understood to mean that there is at least one such feature, either explicitly or implicitly. In the description of the application, the meaning of "a plurality" is at least two, for example two, three or more, unless otherwise expressly specified.

[0162] Any process or method descriptions or blocks in flow charts or otherwise described herein represent embodiments which can be managed as one or more modules, segments, or portions of code which include one or more steps for implementing specific logic functions or steps, and the terms in the description are used for causing or carrying out or upgrading of an action between other hardware under their control. The flow diagrams of the methods and processes described in this specification can be understood as representing some of the many alternative sequences of steps that can be implemented in the processes or methods. Alternative sequences can be implemented and practiced within the scope of the described implementations. Furthermore, the described processes or methods can be implemented as one or more of the following: an apparatus, a machine, a system, a device, a computer program product of a computer readable medium configured to cause a computer or computational system to carry out actions specified in the processes or methods.

[0163] The logic and / or steps represented in the flowcharts and / or described herein, for example, can be considered as a sequence of executable instructions stored in a computer readable medium, which can be executed by an instruction execution system, apparatus or device, such as a computer-based system, processor- based system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions, or a combination thereof. For the purposes of this specification, a "computer readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. The computer readable medium can specifically include the following, which are non-exhaustive list: electrical connection (electrical device having one or more wires), portable computer diskette (magnetic device), random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or Flash memory), optical fiber device, and portable compact disc read-only memory (CDROM). In addition, the computer readable medium can even be paper or other suitable medium upon which the program is printed, as the program can be electronically captured, for example, by optically scanning the paper or other suitable medium, then electronically converted into a form that can be edited, compiled, or interpreted, or otherwise processed in electronic form into an executable form suitable for use in the instruction execution system, apparatus or device.

[0164] It should be understood that parts of the present application can be implemented in hardware, software, firmware or a combination thereof. In the above embodiments, a plurality of steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As in another embodiment, if implemented in hardware, any of the following technologies known in the art or their combination can be used: discrete logic circuit with logic gate circuit for implementing logic functions on data signals, application specific integrated circuit with suitable combination logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA), etc.

[0165] Those skilled in the art of the present technology can understand that all or part of the steps carried out by the above-mentioned embodiment method can be completed by a program instructing the relevant hardware, and the program can be stored in a computer readable storage medium. When the program is executed, it includes one of the steps of the method embodiment or a combination thereof.

[0166] In addition, each of the functional units in the various embodiments of the present application can be integrated in one processing module, or each of the units can be physically present separately, or two or more units can be integrated in one module. The integrated module can be realized in the form of hardware or in the form of a software functional module. When the integrated module is realized in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer readable storage medium.

[0167] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A method for preventing condensation control, characterized in that, include: When the air conditioning equipment is in anti-condensation mode, determine the current indoor dew point temperature, ambient temperature, and fan speed of the air conditioning equipment; The target anti-condensation temperature difference is determined based on the first temperature difference between the ambient temperature and the first set temperature, and the fan speed. Based on the operating time of the air conditioning equipment, the target anti-condensation temperature difference is adjusted to obtain the adjusted target anti-condensation temperature difference. The desired temperature of the evaporator of the air conditioning equipment is determined based on the adjusted target anti-condensation temperature difference and the dew point temperature. The operating frequency of the compressor of the air conditioning equipment is adjusted according to the desired temperature and the actual temperature of the evaporator. Determining the target anti-condensation temperature difference based on the first temperature difference between the indoor ambient temperature and the first set temperature, and the fan speed setting, includes: Obtain the set initial anti-condensation temperature difference value; The adjustment value is determined based on the first temperature difference and the fan speed setting; The initial anti-condensation temperature difference is adjusted according to the adjustment value to obtain the target anti-condensation temperature difference.

2. The method as described in claim 1, characterized in that, The step of determining the adjustment value based on the first temperature difference and the fan speed includes: The first temperature difference is compared with the second set temperature and the third set temperature, respectively; wherein the third set temperature is greater than the second set temperature. In response to the first temperature difference being greater than the second set temperature, an adjustment value corresponding to the fan speed is determined; In response to the first temperature difference being greater than or equal to the third set temperature and less than or equal to the second set temperature, an adjustment value corresponding to the fan speed is determined; In response to the first temperature difference being less than the third set temperature, an adjustment value corresponding to the fan speed is determined.

3. The method according to any one of claims 1-2, characterized in that, The step of adjusting the target anti-condensation temperature difference based on the operating time of the air conditioning equipment to obtain the adjusted target anti-condensation temperature difference includes: A corresponding duration coefficient is determined based on the operating time of the air conditioning equipment; wherein the duration coefficient and the operating time are inversely proportional. The target anti-condensation temperature difference is adjusted according to the duration coefficient to determine the adjusted target anti-condensation temperature difference.

4. The method according to any one of claims 1-2, characterized in that, The step of adjusting the operating frequency of the compressor of the air conditioning equipment according to the desired temperature and the actual temperature of the evaporator includes: Determine a second temperature difference between the actual temperature and the desired temperature; In response to the second temperature difference being within a set first temperature range, the operating frequency of the compressor is reduced at a set rate. In response to the second temperature difference being within a set second temperature range, the operating frequency of the compressor is increased at a set rate. In response to the second temperature difference being within the set third temperature range, the operating frequency of the compressor is prohibited from being adjusted.

5. The method according to any one of claims 1-2, characterized in that, Determining the current indoor dew point temperature includes: Obtain the set air enthalpy and humidity gauge; The air enthalpy-humidity meter is used to determine the dew point temperature based on the current indoor humidity value.

6. A device for preventing condensation control, characterized in that, include: The first determining module is used to determine the indoor dew point temperature, ambient temperature, and fan speed of the air conditioning equipment when the air conditioning equipment is in anti-condensation mode. The second determining module is used to determine the target anti-condensation temperature difference based on the first temperature difference between the ambient temperature and the first set temperature, and the fan speed. The third determining module is used to adjust the target anti-condensation temperature difference based on the operating time of the air conditioning equipment, and obtain the adjusted target anti-condensation temperature difference. The desired temperature of the evaporator of the air conditioning equipment is determined based on the adjusted target anti-condensation temperature difference and the dew point temperature. An adjustment module is used to adjust the operating frequency of the compressor of the air conditioning equipment according to the desired temperature and the actual temperature of the evaporator; The second determining module is specifically used for: Obtain the initial anti-condensation temperature difference; The adjustment value is determined based on the first temperature difference and the fan speed setting; The initial anti-condensation temperature difference is adjusted according to the adjustment value to obtain the target anti-condensation temperature difference.

7. An air conditioning device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the method as described in any one of claims 1-5.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1-5.

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