CN116221944A

CN116221944A - Anti-condensation control method and device, air conditioning equipment and storage medium

Info

Publication number: CN116221944A
Application number: CN202211644460.9A
Authority: CN
Inventors: 单联瑜; 吴俊鸿; 周树锋; 崔松林; 孟红武
Original assignee: Beijing Xiaomi Mobile Software Co Ltd; Xiaomi Technology Wuhan Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd; Xiaomi Technology Wuhan Co Ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-06-06

Abstract

The application provides an anti-condensation control method, an anti-condensation control device, air conditioning equipment and a storage medium, wherein the anti-condensation control method comprises the following steps: under the condition that the air conditioning equipment is in the condensation prevention mode, according to a first temperature difference value between the ambient temperature and a first set temperature and a fan gear, the requirement of cold is determined, a target condensation prevention temperature difference value corresponding to the first temperature difference value and the fan gear is determined based on the requirement of cold, accuracy of determining the condensation prevention temperature difference value is improved, meanwhile, the target condensation prevention temperature difference value is adjusted according to operation time, expected temperature of an evaporator is determined based on the adjusted target condensation prevention temperature difference value, and the operation frequency of a compressor is adjusted based on a difference between the expected temperature and the actual temperature, so that the refrigeration requirement is fully considered in the condensation prevention process, and the condensation risk is reduced under the condition of guaranteeing the refrigeration effect.

Description

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

Technical Field

The present application relates to the field of automatic control technologies, and in particular, to an anti-condensation control method and apparatus, an air conditioning device, and a storage medium.

Background

When the air conditioning equipment operates in a refrigerating mode in an environment with higher humidity, when the surface temperature of the indoor heat exchanger is lower than the dew point temperature, water vapor in air is condensed on the surface of the indoor heat exchanger or the surface of the air duct to generate fine water drops, namely condensation, and excessive condensation not only can affect the refrigerating effect, but also can cause severe after-sales problems such as air duct water blowing and the like, so that anti-condensation treatment is needed.

In the related art, the refrigerating effect during the anti-condensation process cannot be ensured.

Disclosure of Invention

The present application aims to solve, at least to some extent, one of the technical problems in the related art.

Therefore, the application provides a condensation prevention control method, a condensation prevention control device, air conditioning equipment and a storage medium, so that the condensation prevention control is realized and the refrigeration effect is ensured.

In one aspect, an embodiment of the present application provides an anti-condensation control method, including:

determining the indoor dew point temperature, the ambient temperature and the fan gear of the air conditioning equipment under the condition that the air conditioning equipment is in an anti-condensation mode;

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;

Determining an expected temperature of an evaporator of the air conditioning equipment according to the operation time length of the air conditioning equipment, the target condensation prevention temperature difference value and the dew point temperature;

and adjusting the operation frequency of the compressor of the air conditioning equipment according to the expected temperature and the actual temperature of the evaporator.

Another embodiment of the present application provides an anti-condensation control device, including:

the first determining module is used for determining the indoor dew point temperature, the environment temperature and the fan gear of the air conditioning equipment under the condition that the air conditioning equipment is in the anti-condensation mode;

the second determining module is used for 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;

a third determining module, configured to determine a desired temperature of an evaporator of the air conditioning apparatus according to an operation duration of the air conditioning apparatus, the target condensation preventing temperature difference value, and the dew point temperature;

and the adjusting module is used for adjusting the operation frequency of the compressor of the air conditioning equipment according to the expected temperature and the actual temperature of the evaporator.

Another embodiment of the present application proposes an air conditioning apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, said processor implementing the method according to the previous aspect when executing said program.

Another aspect of the present application provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method according to the previous aspect.

Another embodiment of the present application proposes a computer program product having a computer program stored thereon, which, when being executed by a processor, implements a method according to the previous aspect.

According to the anti-condensation control method, the device, the air conditioning equipment and the storage medium, when the air conditioning equipment is in the anti-condensation mode, the cooling capacity requirement is determined according to the first temperature difference value between the ambient temperature and the first set temperature and the fan gear, the target anti-condensation temperature difference value corresponding to the first temperature difference value and the fan gear is determined based on the cooling capacity requirement, the accuracy of determining the anti-condensation temperature difference value is improved, meanwhile, the target anti-condensation temperature difference value is adjusted according to the operation duration, the expected temperature of the evaporator is determined based on the adjusted target anti-condensation temperature difference value, the operation frequency of the compressor is adjusted based on the difference between the expected temperature and the actual temperature, the refrigeration requirement is fully considered in the anti-condensation process, and the condensation risk is reduced under the condition that the refrigeration effect is ensured.

Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic flow chart of an anti-condensation control method according to an embodiment of the present application;

FIG. 2 is a schematic flow chart of another anti-condensation control method according to an embodiment of the present disclosure;

FIG. 3 is a schematic flow chart of another anti-condensation control method according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of an anti-condensation control device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an air conditioning apparatus according to an embodiment of the present application.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

The following describes an anti-condensation control method, an apparatus, an air conditioning device, and a storage medium of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic flow chart of an anti-condensation control method according to an embodiment of the present application.

The main execution body of the anti-condensation control method in the embodiment of the present application is an anti-condensation control device, which may be provided in an air conditioning apparatus, for example, an air conditioner, a refrigerator, a dehumidifier, etc., and is not limited in this embodiment.

As shown in fig. 1, the method may include the steps of:

step 101, determining the dew point temperature, the ambient temperature and the fan gear of the air conditioning equipment in the current room under the condition that the air conditioning equipment is in the anti-condensation mode.

In this embodiment of the present application, when the air conditioning apparatus is in the cooling mode or the dehumidifying mode and is transported for a set period of time, for example, 20 minutes to 40 minutes, it is determined whether to enter the anti-condensation control mode, and if the following conditions are satisfied, it is determined that the air conditioning apparatus enters the anti-condensation mode:

1) The air conditioning device is in a cooling mode;

2) The indoor environment temperature is less than or equal to a first limit value (the first limit value takes 28-30 ℃) of the indoor environment temperature entering the condensation prevention;

3) The outdoor environment temperature is less than or equal to a second limit value (the second limit value is 26-35 ℃) of the outdoor environment temperature entering the condensation prevention;

4) The indoor relative humidity is larger than or equal to the indoor humidity limit value (the indoor humidity limit value is 70-75%)

If there is no humidity sensor, or the humidity sensor detection value is 0%, or the humidity sensor fails, the fourth humidity condition is not determined.

The dew point temperature is the temperature to which gaseous water contained in air needs to be reduced to saturated and condensed into liquid water. As an implementation manner, a set air enthalpy and humidity table is obtained, wherein the air enthalpy and humidity table comprises dew point temperatures corresponding to all humidity values, so that the air enthalpy and humidity table is searched according to the indoor humidity values to determine the dew point temperatures corresponding to the indoor humidity values. The indoor humidity value may be acquired based on a humidity sensor of the air conditioner, and if the air conditioner does not have the humidity sensor, the indoor humidity value may be set according to a set humidity value, for example, the set humidity value is 70% to 80%, which is not limited in this embodiment.

Wherein the current ambient temperature is detectable by a temperature sensor in the air conditioning apparatus. The gear of the indoor fan of the air conditioning equipment, that is, the gear of the fan set by the current air conditioning equipment, for example, the gear of any gear in 1 gear to 5 gears, wherein the larger the gear of the fan is, the more the cold output during refrigeration is, the smaller the gear is, and the smaller the cold output during refrigeration is.

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

The first set temperature is a target value of an indoor temperature that the air conditioning device needs to reach through cooling, and is set by a user, for example, the first set temperature is 25 degrees celsius, that is, the indoor temperature that the user wants to cool reaches is 25 degrees celsius.

The target condensation preventing temperature difference indicates the difference between the temperature of the evaporator in the inner machine of the air conditioning equipment and the dew point temperature under the condition that condensation preventing can be realized.

The evaporator temperature, i.e., the evaporator coil temperature, is also described.

In this embodiment of the present application, in the refrigeration mode of the air conditioning apparatus, along with the increase of the duration of refrigeration, the first temperature difference value may change, so as to improve the accuracy of the target anti-condensation temperature difference value, and according to the first temperature difference value between the ambient temperature detected in real time and the first set temperature, and the fan gear, the target anti-condensation temperature difference value may be determined, that is, the first temperature difference value changes, and/or the fan gear changes, the target anti-condensation temperature difference value may also change, so that the target anti-condensation temperature difference value is prevented from being changed all the time, and the accuracy is improved.

Step 103, determining the expected temperature of the evaporator of the air conditioning equipment according to the operation time length of the air conditioning equipment, the target condensation prevention temperature difference value and the dew point temperature.

In this embodiment of the present application, in the refrigerating process, the demand of cold energy is changed, the demand of the initial stage of air conditioning refrigeration is higher to the cold energy, and along with the refrigerating, the demand of cold energy is reduced, and the demand of cold energy is related to the duration of refrigeration, when the duration of refrigeration is shorter, the demand of cold energy is greater, when the duration of refrigeration is longer, the demand of cold energy is reduced, therefore, based on the operation duration of the air conditioning device, the target condensation temperature difference is adjusted, the adjusted target condensation temperature difference of the duration factor is taken into account, and then, the desired temperature of the evaporator of the air conditioning device is obtained by subtracting the adjusted target condensation temperature difference from the dew point temperature, wherein the desired temperature indicates the temperature to which the evaporator needs to be adjusted.

Step 104, adjusting the operation frequency of the compressor of the air conditioning equipment according to the expected temperature and the actual temperature of the inner tube of the evaporator.

According to the embodiment of the 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 obtained through actual measurement is compared with the determined temperature range, so that the operation frequency of the compressor of the air conditioning equipment for condensation control is determined, the operation frequency of the compressor is adjusted, the temperature of the inner tube of the evaporator is in a condensation-preventing range, the condensation-preventing control effect is improved, meanwhile, the cooling requirements of different stages of cooling are considered in the operation time, the cooling effect is guaranteed, that is to say, the generation of condensation phenomenon is slowed down while the cooling output of the air conditioning equipment is guaranteed, and the condensation-preventing control reliability is improved.

According to the anti-condensation control method, under the condition that the air conditioning equipment is in an anti-condensation mode, the first temperature difference value between the ambient temperature and the first set temperature and the fan gear are used for determining the requirement of cold, the target anti-condensation temperature difference value corresponding to the first temperature difference value and the fan gear is determined based on the requirement of cold, the accuracy of determining the anti-condensation temperature difference value is improved, meanwhile, the target anti-condensation temperature difference value is adjusted according to the operation time length, the expected temperature of the evaporator is determined based on the target anti-condensation temperature difference value obtained through adjustment, the operation frequency of the compressor is adjusted based on the difference between the expected temperature and the actual temperature, the refrigeration requirement is fully considered in the anti-condensation process, and the condensation risk is reduced under the condition that the refrigeration effect is guaranteed.

Based on the above embodiments, fig. 2 is a schematic flow chart of another anti-condensation control method according to the embodiments of the present application, as shown in fig. 2, the method includes the following steps:

in step 201, in the case that the air conditioning apparatus is in the anti-condensation mode, the dew point temperature in the current room, the ambient temperature, and the fan gear of the air conditioning apparatus are determined.

The principle of step 201 is the same as that of the previous embodiment, and will not be repeated here.

Step 202, obtaining a set initial condensation prevention temperature difference value.

In this application embodiment, can confirm the temperature that air conditioning equipment's evaporimeter needs to set up according to the indoor dew point temperature of determining to realize that the evaporimeter can realize preventing condensation under the temperature of this setting, avoid vapor in the air to condense on indoor heat exchanger surface or wind channel surface promptly, influence air conditioning equipment's refrigeration effect, can lead to more to wind channel blowing subalternation problem to appear. Furthermore, according to the dew point temperature and the requirement of condensation prevention, the set initial condensation prevention temperature difference can be determined, that is, condensation prevention can be realized under the condition that the initial condensation prevention temperature difference is satisfied.

And 203, determining an adjustment value according to the first temperature difference value and the fan gear.

In this embodiment of the present invention, the requirement of indoor room cold is determined according to the first temperature difference, and the output of different fan gears to room cold is also different, for example, the output of room cold is less when the fan gear is lower, and the condensation phenomenon slightly improves for higher fan gear, therefore, the adjustment value under the different fan gears is determined, for correcting the set anti-condensation temperature difference, so that when the cold requirement is high, the output of cold can be ensured by the target anti-condensation temperature difference obtained through the adjustment of the corresponding adjustment value, and the generation of the condensation phenomenon is slowed down simultaneously, and when the cold requirement is gradually reduced, the output of cold is reduced, and the generation of the condensation phenomenon is slowed down simultaneously.

Thus, the first temperature difference and the fan gear are different, and the corresponding adjustment values are different, and the adjustment values can be set based on prior experience, and are described below for different scenes.

In one scenario, the first temperature difference is compared with a second set temperature and a third set temperature, respectively, wherein the third set temperature is greater than the second set temperature, and an adjustment value corresponding to the fan gear is determined in response to the first temperature difference being greater than the second set temperature.

And under a second scene, comparing the first temperature difference with a second set temperature and a third set temperature respectively, wherein the third set temperature is larger than the second set temperature, and determining an adjustment value corresponding to the fan gear in response to the first temperature difference being larger than or equal to the third set temperature and smaller than or equal to the second set temperature.

And under a third scene, comparing the first temperature difference with a second set temperature and a third set temperature respectively, wherein the third set temperature is larger than the second set temperature, and determining an adjustment value corresponding to the fan gear in response to the first temperature difference being smaller than the third set temperature.

It should be noted that, in the process of refrigeration, the requirements of refrigeration are different in different scenes, and under the condition that the first temperature difference value is different, the adjustment values determined for the same fan gear are also different, so that the combination of each first temperature difference value and the fan gear is realized, the corresponding adjustment values are all provided, and the requirements of condensation adjustment are met under different refrigeration requirements.

And 204, adjusting the initial condensation prevention temperature difference value according to the adjustment value to obtain a target condensation prevention temperature difference value.

In the embodiment of the application, after the adjustment value is determined, the initial condensation-preventing temperature difference is adjusted according to the adjustment value to obtain the target condensation-preventing temperature difference, so that the actual refrigeration requirement is considered in the condensation-preventing control process, the target condensation-preventing temperature difference is obtained through adjustment of the initial condensation-preventing temperature difference, the accuracy of determining the target condensation-preventing temperature difference is improved, and the condensation phenomenon is slowed down while the cold output of the air conditioning equipment is ensured.

As an example, taking an indoor fan gear of an air conditioning apparatus including 7 gears, a second set temperature of 1 degree celsius and a third set temperature of-1 degree celsius as an example, the corresponding target condensation prevention temperature differences in each case are shown in the following table 1.

TABLE 1

Wherein, deltaT is the initial anti-condensation temperature difference value, deltaT 1-DeltaT 11 is the determined each set adjustment value, wherein, under the condition that the first temperature difference value is unchanged, the set adjustment value is correspondingly reduced along with the increase of the windshield; meanwhile, under the same fan gear, the larger the first temperature difference value is, the larger the corresponding set adjustment value is, that is to say, the delta T1-delta T11 are sequentially reduced.

Step 205, determining the expected temperature of the evaporator of the air conditioning equipment according to the operation time length of the air conditioning equipment, the target condensation preventing temperature difference value and the dew point temperature.

The principle of step 205 is the same as that of the previous embodiment, and will not be repeated here.

Step 206, adjusting the operation frequency of the compressor of the air conditioning apparatus according to the desired temperature and the actual temperature of the evaporator.

In one implementation manner of the embodiment of the present application, the power adjustment manner under different scenarios shown in table 2 is based on:

TABLE 2

Wherein, troutine 1 and Troutine 2 are the temperature adjustment scope of settlement, have increased the scope of tolerance, have improved the accuracy of frequency adjustment.

According to the embodiment of the application, according to the expected temperature and the set temperature adjustment range, the temperature interval corresponding to the evaporator is determined under the condition that the refrigerating capacity is met and the condensation phenomenon is slowed down, and then, according to the temperature interval to which the actual temperature of the evaporator belongs, the adjustment strategy of the corresponding compressor operation frequency is determined, and according to the corresponding compressor operation frequency adjustment strategy, the operation frequency of the compressor of the air conditioning equipment is adjusted, so that the cooling capacity output of the air conditioning equipment is ensured, the generation of the condensation phenomenon is slowed down, and the reliability of anti-condensation control is improved.

In the anti-condensation control method, during anti-condensation control, the operation frequency of the compressor is controlled by judging the indoor environment temperature, the humidity, the fan gear and the operation time, so that the output of indoor cold is ensured, the condensation phenomenon is improved, the refrigerating comfort of a user is ensured, meanwhile, the problems of safety and the like caused by the condensation phenomenon are avoided, and the reliability of anti-condensation control is improved.

Based on the above embodiments, fig. 3 is a schematic flow chart of another anti-condensation control method according to the embodiments of the present application, as shown in fig. 3, the method includes the following steps:

step 301, determining a dew point temperature, an ambient temperature and a fan gear of the air conditioning device in a current room in case the air conditioning device is in an anti-condensation mode.

Step 302, determining a target anti-condensation temperature difference according to a first temperature difference between the ambient temperature and a first set temperature and a fan gear.

The explanation in the foregoing method embodiment is also applicable to the step 301 and the step 302 in this embodiment, and the principle is the same, which is not repeated here.

Step 303, determining a corresponding time length coefficient according to the operation time length of the air conditioning equipment.

Wherein the time length coefficient and the operation time length are in inverse proportion.

In the embodiment of the application, the calculation is performed according to the operation time of the air conditioning equipment, when the operation time of the air conditioning equipment is short, the condensation phenomenon is good, at the moment, the cold output is taken as the main, the indoor temperature and the indoor humidity are reduced, the evaporator tube temperature is limited to be too low, and the deterioration of the condensation phenomenon is slowed down; when the running time of the air conditioner is gradually prolonged, the condensation phenomenon is gradually worsened, and the reliability is the main factor at the moment, the temperature of the evaporator tube is increased, so that the condensation is ensured not to be worsened.

In this embodiment of the present application, a duration coefficient corresponding to an operation duration may be determined according to a correspondence between an actual operation duration of an air conditioning device and a duration coefficient, and as an implementation manner, a set operation duration may be set, where the set operation duration includes a first duration and a second duration, where the second duration is longer than the first duration, and the corresponding duration coefficient is determined according to a section of the set operation duration to which the actual operation duration belongs.

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

in the 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, is [1.1, 1.2);

In the third scenario, if the operation time length of the air conditioning apparatus is longer than the second time length, the time length coefficient is a third set value, for example, 1.

It should be noted that, the value of the duration coefficient, the value of the first duration and the value of the second duration may be set according to the requirement, which is not limited in this embodiment.

Step 304, adjusting the target condensation prevention temperature difference value according to the duration coefficient, and determining the adjusted target condensation prevention temperature difference value.

In one implementation manner of the embodiment of the application, the time length coefficient is multiplied by the target condensation prevention temperature difference value to obtain an adjusted target condensation prevention temperature difference value, namely, the following relation is satisfied:

the adjusted target condensation preventing temperature difference=time length coefficient.

Step 305, determining the expected temperature of the evaporator according to the difference between the dew point temperature and the adjusted target condensation prevention temperature difference.

Wherein the desired temperature satisfies the following relationship:

desired temperature = dew point temperature-adjusted target anti-condensation temperature difference.

Step 306, adjusting the operating frequency of the compressor of the air conditioning apparatus according to the desired temperature and the actual temperature of the evaporator.

The explanation in the foregoing method embodiment is also applicable to step 306 in this embodiment, and the principle is the same, and will not be repeated here.

In the anti-condensation control method, when the operation time of the air conditioner is short, the condensation phenomenon is good, at the moment, the cold output is taken as the main part, the indoor temperature and the indoor humidity are reduced, the temperature of the inner tube of the evaporator is limited to be too low, and the deterioration of the condensation phenomenon is slowed down; when the running time of the air conditioner is gradually prolonged, the condensation phenomenon is gradually worsened, and the reliability is the main factor at the moment, the temperature of the inner tube of the evaporator is increased, and the condensation is ensured not to be worsened.

Based on the above embodiments, in order to further clearly describe the anti-condensation control method, the following description is given for a specific scenario:

the indoor environment temperature is determined to be 28 ℃ and the outdoor environment temperature is determined to be 32 ℃ according to data acquired by a temperature sensor arranged on the air conditioning equipment, the indoor humidity is determined to be 80% according to data acquired by a humidity sensor, and the anti-condensation temperature difference value is a set value determined based on priori experience. When a user starts the air conditioning equipment, the air conditioning equipment runs in a refrigerating mode, the first set temperature is 25 ℃, the gear of a fan of the internal machine is 4, and after the air conditioning equipment runs for 20 minutes, the air conditioning equipment is determined to enter an anti-condensation control mode based on detection of the anti-condensation condition.

According to indoor humidity values and a pre-recorded air enthalpy and humidity table, calculating to obtain a dew point temperature of 22 ℃;

At this time, based on the detection data, it is determined that the indoor environment temperature is 28 ℃, the fan gear is 4, the anti-condensation temperature difference is set to 6 ℃, the set adjustment value is determined to be 1.6 ℃ according to the first temperature difference between the indoor environment temperature and the first set temperature and the fan gear, and then the target anti-condensation temperature difference=the initial anti-condensation temperature difference+the adjustment value=6+1.6=7.6 ℃.

When the set first time length is determined to be 1 hour, and the operation time length of the air conditioning equipment is less than the first time length, namely 1 hour, the time length coefficient K takes a value of 1.3, the expected temperature=dew point temperature-target condensation prevention temperature difference value of the evaporator is k=22-7.6×1.3=12.12 ℃, and further, the operation frequency of the compressor is regulated and controlled according to the expected temperature and the actual temperature of the inner tube of the evaporator, and at present, the expected temperature of the evaporator is relatively low, so that the refrigerating effect can be ensured.

When the air conditioning equipment continuously operates, the set second time length is 2 hours, the first time length is less than or equal to the air conditioning operation time length and less than the second time length, the time length coefficient K is reduced by 1.1, the expected temperature of the evaporator=dew point temperature-target condensation prevention temperature difference value is 1.1.1=22-7.6, and further, the operation frequency of the compressor is regulated and controlled according to the expected temperature and the actual temperature of the inner tube of the evaporator, wherein the expected temperature of the evaporator is increased along with the increase of the air conditioning operation time length, and the condensation risk is reduced.

When the indoor temperature is reduced from 28 ℃ to 26 ℃, the difference between the indoor environment temperature and the first set temperature is 1 ℃, the room temperature is close to the first set temperature, the refrigerator is more comfortable, the refrigerating capacity output can be reduced, the temperature of the evaporator is improved, and the reliability of the condensation preventing capacity is ensured. The set adjustment value corresponding to the initial condensation preventing temperature difference is redetermined according to the first temperature difference between the indoor environment temperature and the first set temperature and the fan gear, for example, the adjustment value is 0.6, and the target condensation preventing temperature difference=the initial condensation preventing temperature difference+the adjustment value=6+0.6=6.6 ℃;

desired temperature of evaporator = dew point temperature-target anti-condensation temperature difference x K = 22-6.6 x 1.1 = 14.74 ℃.

Along with the operation of the air conditioning equipment, when the operation time length of the air conditioning equipment is more than or equal to the second operation time length, namely 2 hours, the time length coefficient K takes a value of 1, the expected temperature=dew point temperature-target condensation prevention temperature difference value of the evaporator is x k=22-6.6 x 1=15.4 ℃, and then the operation frequency of the compressor is regulated and controlled according to the expected temperature and the actual temperature of the inner tube of the evaporator. The desired temperature of the evaporator increases as the length of the air conditioner operation increases, reducing the risk of condensation. If the indoor temperature changes, the expected temperature of the evaporator is corrected according to logic judgment, so that the accuracy is improved.

Wherein, when any one of the following conditions is satisfied, the anti-condensation mode is exited:

a. entering other modes such as a heating mode and an air supply mode;

b. the indoor environment temperature is more than or equal to the limit value of the anti-condensation indoor environment temperature and is +1℃;

c. the outdoor environment temperature is more than or equal to the limit value of the anti-condensation outdoor environment temperature and is +1℃;

d. the indoor relative humidity is less than or equal to-10% of the indoor humidity limit value of the anti-condensation chamber. (if there is no humidity sensor, the detection value of the humidity sensor is 0%, and if the humidity sensor fails, the condition is not judged.)

In the anti-condensation control method, during anti-condensation control, the frequency of the compressor is controlled by judging the indoor environment temperature, the humidity, the fan gear and the operation time, so that the output of indoor cold is ensured, the condensation phenomenon is improved, the refrigerating comfort of a user is ensured, meanwhile, the problems of safety and the like caused by the condensation phenomenon are avoided, and the reliability of anti-condensation control is improved.

In order to achieve the above embodiments, the embodiments of the present application further provide an anti-condensation control device.

Fig. 4 is a schematic structural diagram of an anti-condensation control device according to an embodiment of the present application.

As shown in fig. 4, the apparatus may include:

the first determining module 41 is configured to determine a dew point temperature in a room, an ambient temperature, and a fan gear of the air conditioning apparatus when the air conditioning apparatus is in an anti-condensation mode.

The second determining module 42 is configured to determine a target anti-condensation temperature difference according to the first temperature difference between the ambient temperature and the first set temperature and the fan gear.

A third determining module 43, configured to determine a desired temperature of an evaporator of the air conditioning apparatus according to an operation duration of the air conditioning apparatus, the target condensation preventing temperature difference value, and the dew point temperature.

An adjustment module 44 for adjusting the operating frequency of the compressor of the air conditioning apparatus based on the desired temperature and the actual temperature of the evaporator.

Further, in an implementation manner of the embodiment of the present application, the second determining module 42 is configured to:

acquiring an initial condensation prevention temperature difference value;

determining an adjustment value according to the first temperature difference value and the fan gear;

and adjusting the initial condensation prevention temperature difference value according to the adjustment value to obtain the target condensation prevention temperature difference value.

In one implementation manner of the embodiment of the present application, the second determining module 42 is specifically configured to:

comparing 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;

Determining an adjustment value corresponding to the fan gear in response to the first temperature difference being greater than the second set temperature;

determining 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;

and determining an adjustment value corresponding to the fan gear in response to the first temperature difference being less than the third set temperature.

In one implementation manner of the embodiment of the present application, the third determining module 43 is specifically configured to:

determining a corresponding time length coefficient according to the operation time length of the air conditioning equipment; wherein the time length coefficient and the operation time length are in inverse proportion relation;

adjusting the target condensation prevention temperature difference value according to the duration coefficient, and determining an adjusted target condensation prevention temperature difference value;

and determining the expected temperature of the evaporator according to the difference value of the dew point temperature and the adjusted target condensation prevention temperature difference value.

In one implementation of the embodiment of the present application, the adjustment module 44 is specifically configured to:

determining 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 interval, reducing the operating frequency of the compressor at a set frequency reduction rate;

in response to the second temperature difference being within a set second temperature interval, increasing the operating frequency of the compressor at a set rate of frequency increase;

and in response to the second temperature difference being in a set third temperature interval, prohibiting adjustment of the operating frequency of the compressor.

In one implementation manner of the embodiment of the present application, the first determining module is specifically configured to:

acquiring a set air enthalpy and humidity table;

and searching the air enthalpy and humidity table according to the current indoor humidity value to determine the dew point temperature.

It should be noted that the foregoing explanation of the method embodiment is also applicable to the apparatus of this embodiment, and will not be repeated here.

According to the anti-condensation control device, under the condition that air conditioning equipment is in an anti-condensation mode, the first temperature difference value between the ambient temperature and the first set temperature and the fan gear are used for determining the requirement of cold, the target anti-condensation temperature difference value corresponding to the first temperature difference value and the fan gear is determined based on the requirement of cold, the accuracy of determining the anti-condensation temperature difference value is improved, meanwhile, the target anti-condensation temperature difference value is adjusted according to the operation time length, the expected temperature of an evaporator is determined based on the target anti-condensation temperature difference value obtained through adjustment, the operation frequency of a compressor is adjusted based on the difference between the expected temperature and the actual temperature, the refrigeration requirement is fully considered in the anti-condensation process, and the condensation risk is reduced under the condition that the refrigeration effect is guaranteed.

In order to implement the above embodiment, the present application further proposes an air conditioning apparatus including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the method according to the foregoing method embodiment when executing the program.

In order to implement the above-mentioned embodiments, the present application also proposes a non-transitory computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, implements a method as described in the foregoing method embodiments.

In order to implement the above-described embodiments, the present application also proposes a computer program product having a computer program stored thereon, which, when being executed by a processor, implements a method as described in the method embodiments described above.

Fig. 5 is a block diagram of an air conditioning apparatus provided in an embodiment of the present application. For example, the air conditioning apparatus 800 may be an air conditioner, an air cleaner, a dehumidifier, a refrigerator, or the like.

Referring to fig. 5, the air conditioning apparatus 800 may include one or more of the following components: a processing component 802, a memory 804, a power 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.

The processing component 802 generally controls overall operation of the air conditioning device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operation at the air conditioning device 800. Examples of such data include instructions for any application or method operating on the air conditioning device 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices 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 or optical disk.

The power component 806 provides power to the various components of the air conditioning apparatus 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the air conditioning device 800.

The multimedia component 808 includes a screen between the air conditioning apparatus 800 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation.

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 apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc.

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

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 may access a wireless network based on a communication standard, such as WiFi,4G, or 5G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the air conditioning device 800 may 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, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 804 including instructions executable by processor 820 of air conditioning device 800 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.

Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.

It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.

Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims

1. An anti-condensation control method, characterized by comprising:

determining the dew point temperature, the ambient temperature and the fan gear of the air conditioning equipment in the current room under the condition that the air conditioning equipment is in an anti-condensation mode;

2. The method of claim 1, wherein determining the target anti-condensation temperature difference based on the first temperature difference between the ambient temperature in the room and the first set temperature, and the fan gear comprises:

Acquiring a set initial condensation preventing temperature difference value;

3. The method of claim 2, wherein said determining an adjustment value based on said first temperature difference and said fan gear comprises:

4. A method according to any one of claims 1-3, wherein said determining a desired temperature of an evaporator of said air conditioning apparatus based on an operating time period of said air conditioning apparatus, said target anti-condensation temperature difference value, and said dew point temperature comprises:

5. A method according to any one of claims 1-3, wherein said adjusting the operating frequency of the compressor of the air conditioning apparatus in accordance with the desired temperature and the actual temperature of the evaporator comprises:

responsive to the second temperature difference being within a set first temperature interval, reducing the operating frequency of the compressor at a set frequency reduction rate;

in response to the second temperature difference being within a set second temperature interval, increasing the operating frequency of the compressor at a set frequency increase rate;

6. A method according to any one of claims 1-3, wherein said determining the dew point temperature in the current room comprises:

acquiring a set air enthalpy and humidity table;

7. An anti-condensation control device, comprising:

8. The apparatus of claim 7, wherein the second determination module is to:

Acquiring an initial condensation prevention temperature difference value;

9. An air conditioning apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any of claims 1-6 when the program is executed.

10. A non-transitory computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the method according to any of claims 1-6.