WO2023098066A1

WO2023098066A1 - Method and apparatus for controlling condensation prevention of air conditioner and air conditioner

Info

Publication number: WO2023098066A1
Application number: PCT/CN2022/102704
Authority: WO
Inventors: 罗荣邦
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2021-12-02
Filing date: 2022-06-30
Publication date: 2023-06-08
Also published as: CN114322235B; CN114322235A

Abstract

A method and apparatus for controlling condensation prevention of an air conditioner and the air conditioner. The method comprises: determining a coil pipe temperature Tp and a dew point temperature t, calculating ΔT=Tp-t, and determining the value of ΔT; determining a rotating speed r of an inner fan, calculating K=ΔT/r, and determining the value of K; and controlling the rotating speed of the inner fan, a rotating speed of an outer fan and a frequency of a compressor according to an interval in which the value of K is. Under the condition that the impact on the refrigerating capacity of the air conditioner is minimum, condensation can be prevented, water blowing of the air conditioner is further prevented, and the requirement of a user for the refrigerating capacity of the air conditioner and the requirement for a water blowing prevention function are met.

Description

Method and device for controlling anti-condensation of air conditioner, air conditioner

This application is based on a Chinese patent application with application number 202111467200.4 and a filing date of December 2, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to the technical field of smart home appliances, for example, to a method and device for controlling anti-condensation of an air conditioner, and an air conditioner.

Background technique

At present, the function of the air conditioner is to adjust the temperature and humidity of the room, provide a comfortable environment conducive to people's living, can perform cooling and dehumidification, and can also heat the room, and automatically adjust according to the needs of users. However, in some areas in summer, the relative humidity is close to 100%, the humidity load of the air conditioner is very large, and the user’s air volume setting is low, which will cause the latent heat of the air conditioner to increase, and the air conditioner will blow water, causing the user’s furniture and floor to soak, causing great damage to the user. Dissatisfaction leads to double economic losses for home appliance manufacturers and users.

In the related technology, when the air conditioner is turned on for cooling, the temperature and humidity in the room are detected, and the dew point temperature of the air is calculated according to the formula input by the program. The lower the temperature, the greater the difference from the dew point temperature of the air, and the stronger the dehumidification capacity of the air conditioner. Therefore, the coil temperature is often adjusted to make the coil temperature higher than the dew point temperature to prevent condensation, but only by adjusting the coil temperature. Condensation will reduce the cooling capacity of the air conditioner.

It can be seen that how to maintain the cooling capacity of the air conditioner while preventing condensation from causing water blowing has become a technical problem to be solved urgently by those skilled in the art.

Contents of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide a method and device for controlling the anti-condensation of an air conditioner, and an air conditioner, so as to prevent the generation of condensation with minimal impact on the cooling capacity of the air conditioner, thereby preventing the air conditioner from blowing water, and satisfying the user's requirements for the cooling of the air conditioner. The demand for capacity and the demand for anti-blow function.

In some embodiments, the method for controlling the anti-condensation of the air conditioner includes:

Determine the coil temperature Tp and dew point temperature t, and calculate △T=Tp-t to determine the value of △T;

Determine the speed r of the internal fan, and calculate K=△T/r, and determine the value of K;

According to the range where the value of K is located, the speed of the internal fan, the speed of the external fan and the frequency of the compressor are controlled.

In some embodiments, the device for controlling the anti-condensation of the air conditioner includes: a processor and a memory storing program instructions, and the processor is configured to execute the method for controlling the air conditioner in any one of the above embodiments when executing the program instructions. Anti-condensation method.

In some embodiments, the air conditioner includes: the device for controlling the anti-condensation of the air conditioner in any one of the above embodiments.

The method and device for controlling the anti-condensation of air conditioners and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

Obtain the coil temperature and dew point temperature, and obtain the speed of the internal fan at the same time. Generally, it can be judged whether condensation is likely to occur according to the temperature difference between the coil temperature and dew point temperature, but the speed of the internal fan also has a certain influence on whether condensation occurs. Influence, the speed of the internal fan is increased, and the wind speed flowing through the coil is increased, which can improve the heat exchange efficiency of the coil, take away the cooling capacity of the coil better, which is beneficial to the increase of the temperature of the coil, and then reduces the condensation. Possibly, at the same time, the increase of wind speed can also make the airflow pass through the coil faster, and the heat exchanged by the unit volume of airflow in contact with the coil is reduced, which can also reduce the generation of condensation, so the temperature difference between the coil temperature and the dew point temperature ΔT Combined with the speed r of the internal fan, it is more accurate to judge whether condensation is prone to occur. This is used to control the speed of the internal fan, the speed of the external fan and the frequency of the compressor, which can prevent condensation with the least impact on the cooling capacity of the air conditioner. , and then prevent the air conditioner from blowing water, and meet the user's demand for the cooling capacity of the air conditioner and the demand for the anti-water blowing function.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications and drawings do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings are not limited to scale and in which:

Fig. 1 is a schematic diagram of a method for controlling anti-condensation of an air conditioner provided by an embodiment of the present disclosure;

Fig. 2 is a schematic diagram of another method for controlling anti-condensation of an air conditioner provided by an embodiment of the present disclosure;

Fig. 3 is a schematic diagram of another method for controlling anti-condensation of an air conditioner provided by an embodiment of the present disclosure;

Fig. 4 is a schematic diagram of a device for controlling anti-condensation of an air conditioner provided by an embodiment of the present disclosure.

Detailed ways

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so as to facilitate the embodiments of the disclosed embodiments described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiments of the present disclosure, the character "/" indicates that the preceding and following objects are an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

The term "correspondence" may refer to an association relationship or a binding relationship, and the correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

In the embodiments of the present disclosure, smart home appliances refer to home appliances formed by introducing microprocessors, sensor technologies, and network communication technologies into home appliances. They have the characteristics of intelligent control, intelligent perception, and intelligent applications. Relying on the application and processing of modern technologies such as the Internet of Things, the Internet, and electronic chips, for example, smart home appliances can realize remote control and management of smart home appliances by users by connecting electronic devices.

In the disclosed embodiments, a terminal device refers to an electronic device with a wireless connection function. The terminal device can communicate with the above-mentioned smart home appliance by connecting to the Internet, or directly communicate with the above-mentioned smart home appliance through Bluetooth, wifi, etc. communication connection. In some embodiments, the terminal device is, for example, a mobile device, a computer, or a vehicle-mounted device built into a hover vehicle, or any combination thereof. The mobile device may include, for example, a mobile phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, etc., or any combination thereof, wherein the wearable device includes, for example, a smart watch, a smart bracelet, a pedometer, and the like.

As shown in FIG. 1 , an embodiment of the present disclosure provides a method for controlling anti-condensation of an air conditioner, including:

S01, the processor of the air conditioner determines the coil temperature Tp and the dew point temperature t, and calculates △T=Tp-t to determine the value of △T;

S02, the processor of the air conditioner determines the speed r of the internal fan, and calculates K=△T/r, and determines the value of K;

S03, the processor of the air conditioner controls the speed of the internal fan, the speed of the external fan and the frequency of the compressor according to the range of the value of K.

Using the method for controlling air-conditioning anti-condensation provided by the embodiments of the present disclosure, the coil temperature and dew point temperature are obtained, and the speed of the internal fan is obtained at the same time. Generally, it can be judged according to the temperature difference between the coil temperature and the dew point temperature whether it is easy to occur Condensation, but the speed of the internal fan also has a certain impact on whether condensation occurs. Increasing the speed of the internal fan will increase the wind speed passing through the coil, which can improve the heat exchange efficiency of the coil and improve the cooling capacity of the coil. It is beneficial to increase the temperature of the coil, thereby reducing the possibility of condensation. At the same time, the increase of the wind speed can also make the air flow through the coil faster, and the heat exchanged by the air flow per unit volume in contact with the coil is reduced, which can also reduce Therefore, it is more accurate to judge whether condensation is prone to occur by combining the temperature difference ΔT between the coil temperature and the dew point temperature with the speed r of the internal fan, so as to control the speed of the internal fan, the speed of the external fan and the frequency of the compressor , It can prevent condensation with the least impact on the cooling capacity of the air conditioner, thereby preventing the air conditioner from blowing water, and meeting the user's needs for the cooling capacity of the air conditioner and the anti-water blowing function.

It can be understood that the coil temperature is detected by a temperature sensor installed near the coil, the dew point temperature is calculated from the detected indoor temperature and indoor humidity, and the speed of the internal fan is obtained by a controller that controls the fan speed.

Optionally, as shown in Figure 2, execute S01 to determine the coil temperature Tp and dew point temperature t, and calculate ΔT=Tp-t, before determining the value of ΔT, it also includes:

S04, the processor of the air conditioner judges the running time of the air conditioner, and executes S01 when it is determined that the running time of the air conditioner exceeds the preset time. In this way, in the early stage of the start-up of the air conditioner, there will generally be no condensation phenomenon. At this time, it is not necessary to perform anti-condensation control to prevent the normal operation of the air conditioner. The air conditioner produces condensation, which reduces the impact of the anti-condensation control process on the normal temperature adjustment of the air conditioner.

Optionally, the preset duration is greater than or equal to 5 minutes and less than or equal to 10 minutes. In this way, under normal circumstances, the air conditioner tends to be stable when it is turned on for 5 to 10 minutes, and condensation is likely to occur when the humidity in the air is too high. Therefore, after 5 to 10 minutes The anti-condensation control can effectively prevent the generation of condensation, and has no effect on the operation of the air conditioner, such as adjusting the temperature, and improves the stability of the air conditioner.

Optionally, as shown in Figure 3, execute S01 to determine the coil temperature Tp and dew point temperature t, and calculate ΔT=Tp-t, before determining the value of ΔT, it also includes:

S05, the processor of the air conditioner obtains the anti-condensation instruction, and executes S01 when it is determined that the anti-condensation instruction is obtained. In this way, the anti-condensation function can be turned on through the anti-condensation control command when the user artificially determines whether it is necessary to prevent the air conditioner from blowing water, which is more flexible in use and avoids affecting the operation of other functions of the air conditioner. Need to be turned on.

It can be understood that the anti-condensation command is issued by the remote control of the air conditioner or obtained by acquiring the user's voice command. The control through the remote control of the air conditioner is more stable and reliable, and the control through the user's voice command is more intelligent and convenient.

Optionally, according to the interval of the value of K, controlling the speed of the internal fan, the speed of the external fan and the frequency of the compressor includes:

When it is determined that the coil temperature is greater than the dew point temperature and K≤a, increase the speed of the internal fan to the highest value of the speed of the internal fan, and reduce the speed of the external fan and the frequency of the compressor until K>a. In this way, when the coil temperature is higher than the dew point temperature, △T is a positive number, and K is also a positive number at this time. When the coil temperature is closer to the dew point temperature, the smaller the value of △T and the smaller the value of K. When K≤a, it means that the coil temperature is close to the dew point temperature, and there is a risk of condensation at any time. At this time, increasing the speed of the internal fan to the maximum speed of the internal fan can speed up the gas circulation, improve the heat exchange efficiency, and reduce the external temperature. The speed of the fan and the frequency of the compressor increase the temperature of the coil and increase the value of △T, thereby increasing K. When K>a, it means that the difference between the temperature of the coil and the dew point increases. The risk of condensation is low, which can avoid the phenomenon of blowing water. At the same time, the increase of the speed of the internal fan will speed up the heat exchange, thereby maintaining the cooling capacity of the air conditioner, which can take into account both anti-condensation and cooling capacity of the air conditioner.

Optionally, increasing the speed of the internal fan to the highest value of the speed of the internal fan includes: directly adjusting the speed of the internal fan to the highest value, or gradually increasing the speed of the internal fan to the highest value of the speed of the internal fan according to the first set increment . In this way, it is more convenient to directly perform one-step regulation when the fan speed needs to be increased to the highest value. However, if the fan speed is adjusted too fast, it will easily lead to unstable operation. When there is condensation on the coil, a small part of the condensation will be blown out directly, causing the air conditioner to blow water. According to the first setting increase, the speed of the internal fan will be gradually increased. Increase, the process is softer, which can improve the stability of the air conditioner and prevent a small amount of condensation on the coil from being blown out.

Optionally, 0.00901≤a≤0.00905. In this way, when the value of a is set between 0.00901 and 0.00905, the difference between the coil temperature and the dew point temperature is at the critical point of condensation, which is more reliable for judging whether there is a risk of condensation in the air conditioner. It can improve the accuracy of judgment, better control the internal fan, external fan and compressor of the air conditioner, and prevent condensation while maintaining the cooling capacity of the air conditioner. Preferably, a=0.00903.

When it is determined that the coil temperature is less than or equal to the dew point temperature and c≤K<b, control the speed of the internal fan, the speed of the external fan and the frequency of the compressor to maintain the current state. In this way, when the coil temperature is less than or equal to the dew point temperature, if the internal fan speed is not considered at this time, there is a risk of condensation, but because the internal fan speed has a certain impact on condensation, the coil temperature and dew point The ratio K between the temperature difference △T and the speed r of the internal fan is within a specific range, which can maintain a balance. Even if the coil temperature is lower than the dew point temperature, but the speed of the air flow is too fast, the water in the unit air flow The contact time between the steam and the coil is short enough to release enough heat to condense the water vapor. At this time, there will be no condensation, or the amount of condensation will be small, and the phenomenon of blowing water will not occur. Therefore, the control inside The speed of the fan, the speed of the external fan and the frequency of the compressor maintain the current operating conditions to avoid condensation.

Understandably, controlling the speed of the internal fan, the speed of the external fan, and the frequency of the compressor to maintain the current state refers to maintaining the speed of the internal fan, the speed of the external fan, and The frequency of the compressor does not change.

When it is determined that the coil temperature is less than or equal to the dew point temperature and d≤K<c, control the speed of the external fan and the frequency of the compressor unchanged, and increase the speed of the internal fan until c≤K<b. In this way, the temperature of the coil is less than or equal to the dew point temperature, and there is a risk of condensation regardless of the speed of the internal fan. At this time, the value of △T is a negative number. The lower the coil temperature, the smaller the value of K. When K If the value of K is less than c, it means that the coil is easy to condense, but when K is between c and d, the amount of condensation will not be large. At this time, keep the speed of the external fan and the compressor If the frequency remains the same, increasing the speed of the internal fan can increase the value of K so that the value of K falls between c and b again to maintain balance and prevent condensation. Increasing the speed of the internal fan can reduce The contact time between the water vapor and the coil is such that the water vapor in the airflow is not enough to release enough heat to generate condensation and prevent the formation of water blowing. At the same time, the speed of the internal fan is increased, and the heat exchange efficiency is increased, which will not affect the cooling capacity of the air conditioner. , keep the indoor temperature stable and improve the user experience.

Optionally, the speed of the internal fan is increased with a second set increment until c≤K<b. In this way, the rotation speed of the internal fan is gradually increased with the second set increment, and the rotation speed changes more uniformly, so that when the value of K satisfies c≤K<b, the adjustment of the rotation speed of the internal fan is stopped in time.

Optionally, the second set increment is smaller than the first set increment. In this way, in the process of adjusting the speed of the internal fan so that the value of K satisfies c≤K<b, the adjustment of the speed of the internal fan will stop at any time. Therefore, setting the second setting increment too small can be more accurate. Precisely control the speed of the internal fan to make the speed adjustment of the internal fan more reasonable.

Optionally, the first set increment is greater than or equal to 10 revolutions per second and less than or equal to 15 revolutions per second. In this way, setting the first setting increment at 10 rpm to 15 rpm can quickly increase the speed of the internal fan, reducing the reaction time of fan speed increase, and at the same time, it will not adjust too quickly and cause a small amount of condensation to be blown out. Preferably, the first setting increment is 10 revolutions per second.

Optionally, the second set increment is greater than or equal to 3 revolutions per second and less than or equal to 7 revolutions per second. In this way, setting the second set increase rate within the range of 3 rpm to 7 rpm can stably increase the speed of the internal fan, and the speed increase is moderate, so that the value of K can reach the situation of c≤K<b Stop the adjustment of the speed of the internal fan in time to keep the speed of the internal fan within a reasonable range. Preferably, the second setting increment is 5 revolutions per second.

Optionally, -0.000883≤b≤-0.00088, -0.00534≤c≤-0.005342, -0.00682≤d≤-0.006824. In this way, when the value of K is between -0.00088 and -0.005342, although the coil temperature is lower than the dew point temperature, but the speed of the internal fan is high, the water vapor in the air flow quickly passes through the coil, which is not enough to release Heat condensation, the risk of condensation is small at this time; and when the value of K is between -0.005342 and -0.00682, the coil temperature is lower than the dew point temperature and there is a greater risk of condensation. When the speed of the fan is increased, the value of K can be increased to make it fall between -0.00088 and -0.005342 again. At this time, the speed of the internal fan is increased, and the water vapor in the airflow quickly passes through the coil, which is not enough to release heat and condense , the risk of condensation is small; when the value of K is less than the range of -0.00682 to -0.006824, it means that the temperature of the coil is too low, and condensation will appear, and the effect of simply adjusting the speed of the internal fan is not obvious enough. Therefore, first reduce the speed of the external fan and the frequency of the compressor, so that the temperature of the coil rises rapidly and reduces the generation of condensation. When the temperature of the coil rises, the value of K changes and falls between -0.00088 and -0.005342 , the risk of condensation is reduced, which can effectively prevent condensation, and because the speed of the internal fan is increased, the heat exchange efficiency is increased, and the impact on the cooling capacity of the air conditioner is small. Preferably, b=0.000881, c=0.006822, d=0.005341.

When it is determined that the coil temperature is less than or equal to the dew point temperature and K<d, the frequency of the compressor is controlled to decrease in the first decreasing range, and the speed of the external fan is controlled to decrease in the second decreasing range until d≤K<c is satisfied. In this way, when K is less than d, the coil temperature is too low, and it is necessary to increase the coil temperature. At this time, the coil temperature can be increased by reducing the speed of the external fan and the frequency of the compressor. The frequency of the compressor is reduced by the first Decrease evenly, the speed of the external fan is uniformly reduced by the second decrease, which can prevent the frequency of the compressor and the speed of the external fan from changing too fast, resulting in large fluctuations in the temperature of the coil and affecting the cooling capacity of the air conditioner. Prevent condensation in the air conditioner and avoid blowing water During the process, keep the air conditioner with sufficient cooling capacity.

Optionally, control the frequency of the compressor to decrease with the first decrease, and control the speed of the external fan to decrease with the second decrease until d≤K<c is satisfied, and then continue to control the speed of the internal fan to increase under the condition of d≤K<c . In this way, after increasing the temperature of the coil by controlling the frequency of the compressor and the speed of the external fan, there is still a risk of post-condensation when d≤K<c. Therefore, it is still necessary to adjust the speed of the internal fan until c ≤K<b can better prevent condensation.

Optionally, the first decreasing rate is 0.1 Hz per second. In this way, the frequency of the compressor is reduced at a rate of 0.1 Hz per second, the frequency of the compressor is uniformly reduced, and the stability of the operation of the compressor is improved, and the adjustment of the frequency of the compressor is stopped in time after the value of K meets d≤K<c, so that The frequency of the compressor is controlled within a reasonable range.

Optionally, the second decreasing rate is 10 revolutions per second. In this way, the speed of the outdoor fan is reduced at a rate of 10 revolutions per second, and the adjustment of the speed of the outdoor fan is stopped in time after the value of K satisfies d≤K<c, so that the speed of the outdoor fan is controlled within a reasonable range.

Optionally, while controlling the rotational speed of the internal fan, the rotational speed of the external fan and the frequency of the compressor, the value of K is recalculated every set period of time. In this way, the value of K is recalculated every set time length, and the interval of the value of K can be determined in real time, so as to better control the speed of the internal fan, the speed of the external fan and the frequency of the compressor, so that the That is, no condensation will be generated, and the impact on the cooling capacity of the air conditioner will be minimized, improving user experience.

Optionally, the set duration is greater than or equal to 10 seconds and less than or equal to 20 seconds. In this way, recalculating the value of K within 10 to 20 seconds can better judge the interval of the value of K, stop the adjustment of the speed of the internal fan, the speed of the external fan and the frequency of the compressor in time, and improve the internal The accuracy of fan speed, external fan speed and compressor frequency control ensures that condensation will not cause the air conditioner to blow water, and it can also avoid the impact on the air conditioner's cooling capacity. Preferably, the set duration is 15 seconds.

As shown in FIG. 4 , an embodiment of the present disclosure provides a device for controlling anti-condensation of an air conditioner, including a processor (processor) 100 and a memory (memory) 101 . Optionally, the device may also include a communication interface (Communication Interface) 102 and a bus 103. Wherein, the processor 100 , the communication interface 102 , and the memory 101 can communicate with each other through the bus 103 . Communication interface 102 may be used for information transfer. The processor 100 can call the logic instructions in the memory 101 to execute the method for controlling the anti-condensation of the air conditioner in the above embodiment.

In addition, the above logic instructions in the memory 101 may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as an independent product.

As a computer-readable storage medium, the memory 101 can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes the program instructions/modules stored in the memory 101 to execute functional applications and data processing, that is, to implement the method for controlling the anti-condensation of the air conditioner in the above embodiments.

The memory 101 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a non-volatile memory.

An embodiment of the present disclosure provides an air conditioner, including the above-mentioned device for controlling the anti-condensation of the air conditioner.

An embodiment of the present disclosure provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are configured to execute the above-mentioned method for controlling the anti-condensation of an air conditioner.

An embodiment of the present disclosure provides a computer program product, the computer program product includes a computer program stored on a computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the The computer executes the above-mentioned method for controlling the anti-condensation of the air conditioner.

The above-mentioned computer-readable storage medium may be a transitory computer-readable storage medium, or a non-transitory computer-readable storage medium.

The technical solutions of the embodiments of the present disclosure can be embodied in the form of software products, which are stored in a storage medium and include one or more instructions to enable a computer device (which may be a personal computer, a server, or a network equipment, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc. A medium that can store program code, or a transitory storage medium.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, procedural, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Also, the terms used in the present application are used to describe the embodiments only and are not used to limit the claims. As used in the examples and description of the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well unless the context clearly indicates otherwise . Similarly, the term "and/or" as used in this application is meant to include any and all possible combinations of one or more of the associated listed ones. Additionally, when used in this application, the term "comprise" and its variants "comprises" and/or comprising (comprising) etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these. Without further limitations, an element defined by the statement "comprising a ..." does not exclude the presence of additional identical elements in the process, method or apparatus comprising said element. Herein, what each embodiment focuses on may be the difference from other embodiments, and the same and similar parts of the various embodiments may refer to each other. For the method, product, etc. disclosed in the embodiment, if it corresponds to the method part disclosed in the embodiment, then the relevant part can refer to the description of the method part.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software may depend on the specific application and design constraints of the technical solution. Said artisans may implement the described functions using different methods for each particular application, but such implementation should not be regarded as exceeding the scope of the disclosed embodiments. The skilled person can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units may only be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined Or it can be integrated into another system, or some features can be ignored, or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the disclosure. In this regard, each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions. In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than that disclosed in the description, and sometimes there is no specific agreement between different operations or steps. order. For example, two consecutive operations or steps may, in fact, be performed substantially concurrently, or they may sometimes be performed in the reverse order, depending upon the functionality involved. Each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by dedicated hardware implemented in combination with computer instructions.

Claims

A method for controlling air-conditioning anti-condensation, characterized in that it comprises:

Determine the coil temperature Tp and dew point temperature t, and calculate △T=Tp-t to determine the value of △T;

Determine the speed r of the internal fan, and calculate K=△T/r, and determine the value of K;

According to the interval where the numerical value of K is located, the rotational speed of the internal fan, the rotational speed of the external fan, and the frequency of the compressor are controlled.
The method according to claim 1, characterized in that, according to the interval of the numerical value of K, controlling the speed of the internal fan, the speed of the external fan and the frequency of the compressor comprises:

When it is determined that the coil temperature is greater than the dew point temperature and K≤a, increase the speed of the internal fan to the highest value of the speed of the internal fan, and reduce the speed of the external fan and the speed of the compressor. frequency until K>a.
The method according to claim 2, characterized in that 0.00901≤a≤0.00905.
The method according to any one of claims 1 to 3, wherein controlling the speed of the internal fan, the speed of the external fan and the frequency of the compressor according to the interval of the value of K includes:

When it is determined that the coil temperature is less than or equal to the dew point temperature and c≦K<b, control the rotation speed of the internal fan, the rotation speed of the external fan, and the frequency of the compressor to maintain the current state.
The method according to claim 4, characterized in that, according to the interval of the numerical value of K, controlling the speed of the internal fan, the speed of the external fan and the frequency of the compressor comprises:

When it is determined that the coil temperature is less than or equal to the dew point temperature and d≤K<c, control the rotation speed of the external fan and the frequency of the compressor to remain unchanged, and increase the rotation speed of the internal fan until c ≤K<b.
The method according to claim 5, characterized in that -0.000883≤b≤-0.00088, -0.00534≤c≤-0.005342, -0.00682≤d≤-0.006824.
The method according to claim 5, wherein controlling the speed of the internal fan, the speed of the external fan and the frequency of the compressor according to the range of the value of K includes:

When it is determined that the coil temperature is less than or equal to the dew point temperature and K<d, the frequency of the compressor is controlled to decrease with a first decrease, and the speed of the external fan is controlled to decrease with a second decrease until d is satisfied. ≤K<c.
The method according to claim 7, characterized in that while controlling the rotation speed of the internal fan, the rotation speed of the external fan and the frequency of the compressor, the value of K is recalculated every set period of time.
A device for controlling the anti-condensation of an air conditioner, comprising a processor and a memory storing program instructions, characterized in that the processor is configured to execute any of claims 1 to 8 when running the program instructions. A method for controlling the anti-condensation of an air conditioner.
An air conditioner, characterized by comprising the device for controlling the anti-condensation of the air conditioner as claimed in claim 9 .