Method, apparatus for controlling air conditioner, air conditioner, and storage medium

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for controlling an air conditioner, wherein an outdoor unit of the air conditioner comprises: a first heat exchange part; a second heat exchange part; a first fan arranged corresponding to the first heat exchange part; and a second fan arranged corresponding to the second heat exchange part; the method comprises the following steps: obtaining the temperature of a surface of the first heat exchange part and the temperature of a surface of the second heat exchange part in response to a water blowing prevention instruction; controlling the first fan to reduce the rotating speed in the case that the temperature of the surface of the first heat exchange part is less than a first lower limit value; and controlling the second fan to reduce the rotating speed in the case that the temperature of the surface of the second heat exchange part is less than a second lower limit value. The fans corresponding to different heat exchange parts are controlled separately, the area is adjusted, and regional control is realized. Therefore, the influence on the operation efficiency of the air conditioner is reduced while preventing the condensation from being blown out. The application further discloses a device for controlling the air conditioner, the air conditioner and a storage medium.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, for example to a method, apparatus, air conditioner, and storage medium for controlling an air conditioner. Background Technology

[0002] To save on material costs in air conditioner manufacturing, miniaturization of heat exchangers has become a key research focus for air conditioner manufacturers. This is typically achieved by reducing the heat exchange area of ​​the heat exchanger. Simultaneously, to compensate for the reduced heat exchange performance due to the smaller area, the fan airflow is often increased to enhance heat exchange. However, this results in a high airflow velocity. During heating operation, especially in high-humidity environments, the condensate in the heat exchanger is blown off the fin surface by the high-speed fan, causing a water-blowing problem that negatively impacts the user experience.

[0003] A method for controlling an air conditioner is disclosed in related technology. The outdoor unit of the air conditioner includes an outdoor unit heat exchanger, a first throttling device, a heating module, and a compressor. Along the refrigerant flow direction, the heating module, the first throttling device, the outdoor unit heat exchanger, and the compressor are sequentially connected to the refrigerant pipeline. The method includes: during heating, determining whether there is a risk of condensation based on the ambient temperature and the temperature of the heating module; if the temperature of the heating module is less than or equal to the ambient temperature, determining that there is a risk of condensation and reducing the opening of the first throttling device.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] Reducing the opening of the throttling device to lower the risk of condensation will significantly impact the operating efficiency of the air conditioner, causing discomfort to the user.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a method, apparatus, air conditioner, and storage medium for controlling an air conditioner to reduce the impact on the air conditioner's operating efficiency while preventing the air conditioner from blowing out condensate.

[0009] In some embodiments, the outdoor unit of the air conditioner includes: a first heat exchange section; a second heat exchange section; a first fan disposed corresponding to the first heat exchange section; and a second fan disposed corresponding to the second heat exchange section. The method includes: in response to an anti-blowing command, obtaining the temperature of the surface of the first heat exchange section and the temperature of the surface of the second heat exchange section; if the temperature of the surface of the first heat exchange section is less than a first lower limit, controlling the first fan to reduce its speed; and if the temperature of the surface of the second heat exchange section is less than a second lower limit, controlling the second fan to reduce its speed.

[0010] Optionally, controlling the first fan to reduce its rotational speed includes: determining the rate of reduction of rotational speed based on the temperature of the surface of the second heat exchange section; and controlling the first fan to reduce its rotational speed based on the rate of reduction.

[0011] Optionally, determining the rate of decrease in rotational speed based on the temperature of the surface of the second heat exchanger includes: determining the rate of decrease in rotational speed as a first rate of decrease when the temperature of the surface of the second heat exchanger is greater than or equal to a first temperature threshold; and determining the rate of decrease in rotational speed as a second rate of decrease when the temperature of the surface of the second heat exchanger is less than the first temperature threshold; wherein the first rate of decrease is less than the second rate of decrease; and the first temperature threshold is less than or equal to the lower limit of the second temperature.

[0012] Optionally, the method for determining the lower limit of the first temperature includes: obtaining the current dew point temperature; and determining the lower limit of the first temperature based on the current dew point temperature.

[0013] Optionally, determining the lower limit of the first lower temperature based on the current dew point temperature includes: calculating the lower limit of the first lower temperature as the difference between the dew point temperature and the first temperature.

[0014] Optionally, after obtaining the temperature of the surface of the first heat exchange section, the method further includes: if the temperature of the surface of the first heat exchange section is greater than or equal to the first upper temperature limit, controlling the first fan to increase its rotation speed; if the temperature of the surface of the first heat exchange section is less than the first upper temperature limit but greater than the first lower temperature limit, controlling the first fan to maintain its original rotation speed.

[0015] Optionally, controlling the first fan to increase its rotational speed includes: determining the rate of increase of rotational speed based on the temperature of the surface of the second heat exchange section; and controlling the first fan to increase its rotational speed based on the rate of increase.

[0016] Optionally, determining the rotational speed increase rate based on the temperature of the second heat exchanger surface includes: determining the rotational speed increase rate as a first increase rate when the temperature of the second heat exchanger surface is greater than or equal to a third temperature threshold; and determining the rotational speed increase rate as a second increase rate when the temperature of the second heat exchanger surface is less than the third temperature threshold; wherein the first increase rate is greater than the second increase rate.

[0017] Optionally, after obtaining the temperature of the surface of the second heat exchange section, the method further includes: if the temperature of the surface of the second heat exchange section is greater than or equal to the upper limit of the second temperature, controlling the second fan to increase its rotation speed; if the temperature of the surface of the second heat exchange section is less than the upper limit of the second temperature but greater than the lower limit of the second temperature, controlling the second fan to maintain its original rotation speed.

[0018] Optionally, the method for determining the anti-blowing command includes: controlling the start of the first fan and the second fan; obtaining the dew point temperature of the heat exchange air inlet area after the running time after start-up reaches a preset time; and generating the anti-blowing command when the dew point temperature is greater than or equal to the start-up temperature threshold.

[0019] Optionally, after obtaining the dew point temperature of the heat exchange air inlet area, the method further includes: controlling the first fan and the second fan to increase their speed when the dew point temperature is less than the start-up temperature threshold.

[0020] Optionally, after controlling the first fan and the second fan to increase their speed, the method further includes: obtaining the temperature of the surface of the first heat exchange section and the temperature of the surface of the second heat exchange section; if the temperature of the surface of the first heat exchange section or the temperature of the surface of the second heat exchange section meets the defrosting conditions, controlling the air conditioner to start defrosting and controlling the first fan and the second fan to stop running.

[0021] Optionally, after controlling the air conditioner to start defrosting, the method further includes: after defrosting is completed, controlling the first fan and the second fan to start and run at a preset speed.

[0022] In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to execute the method for controlling an air conditioner as described above when the program instructions are executed.

[0023] In some embodiments, the air conditioner includes: an air conditioner body; and the aforementioned device for controlling the air conditioner is installed on the air conditioner body; wherein the outdoor unit of the air conditioner body includes: a first heat exchange section; a second heat exchange section; a first fan disposed corresponding to the first heat exchange section; and a second fan disposed corresponding to the second heat exchange section.

[0024] In some embodiments, the storage medium stores program instructions that, when executed, perform the method described above for controlling the air conditioner.

[0025] The method, apparatus, air conditioner, and storage medium for controlling an air conditioner provided in this disclosure can achieve the following technical effects:

[0026] Upon receiving an anti-condensation command, the temperatures of the surfaces of the first and second heat exchange sections are monitored. If the temperature of the first heat exchange section surface is below a first lower limit, the first fan reduces its speed; similarly, if the temperature of the second heat exchange section surface is below a second lower limit, the second fan reduces its speed. Lower surface temperatures indicate a higher likelihood of condensation formation; reducing fan speed in this case prevents excessive airflow that could blow out the condensation. By individually controlling the corresponding fan for each heat exchange section, adjustments are made for that specific area, achieving regionalized control. This prevents condensation from being blown out while minimizing the impact on the air conditioner's operating efficiency.

[0027] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0028] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0029] Figure 1 This is a partial structural schematic diagram of an air conditioner provided in an embodiment of this disclosure;

[0030] Figure 2 This is a schematic diagram of a method for controlling an air conditioner provided in an embodiment of this disclosure;

[0031] Figure 3 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0032] Figure 4 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0033] Figure 5 This is a schematic diagram of a device for controlling an air conditioner provided in an embodiment of this disclosure;

[0034] Figure 6 This is a schematic diagram of an air conditioner provided in an embodiment of this disclosure.

[0035] Figure label:

[0036] 11: First heat exchange section; 12: Second heat exchange section; 21: First fan; 22: Second fan; 31: First surface temperature sensor; 32: Second surface temperature sensor; 40: Ambient temperature and humidity sensor. Detailed Implementation

[0037] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0038] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0039] Unless otherwise stated, the term "multiple" means two or more.

[0040] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0041] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0042] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0043] Combination Figure 1 As shown in the figure, this disclosure provides an air conditioner. The outdoor unit of the air conditioner includes: a first heat exchange section 11 and a second heat exchange section 12, a first fan 21 and a second fan 22. The first fan 21 is disposed corresponding to the first heat exchange section 11, and the second fan 22 is disposed corresponding to the second heat exchange section 12. This correspondence means that the airflow directions of both are in a straight line. Increasing the fan speed can increase the air velocity on the surface of the heat exchange section corresponding to the fan.

[0044] The first heat exchange section 11 and the second heat exchange section 12 can be two independent heat exchangers, or they can be two heat exchange areas on the same heat exchanger.

[0045] The air conditioner also includes a first surface temperature sensor 31 and a second surface temperature sensor 32. The first surface temperature sensor is configured to detect the temperature of the surface of the first heat exchange section, and the second surface temperature sensor is configured to detect the temperature of the surface of the second heat exchange section.

[0046] The air conditioner also includes an ambient temperature and humidity sensor 40, configured to detect the temperature and humidity at the air inlets of the areas where the first heat exchange section and the second heat exchange section are located. The humidity includes relative humidity. Optionally, in some embodiments, the ambient temperature and humidity sensor includes a first temperature and humidity sensor and a second temperature and humidity sensor. The first temperature and humidity sensor is configured to detect the temperature and humidity at the air inlets of the areas where the first heat exchange section is located. The second temperature and humidity sensor is configured to detect the temperature and humidity at the air inlets of the areas where the second heat exchange section is located.

[0047] It is understood that in other embodiments, the number of heat exchange sections and fans is not limited to two. In this case, one or more fans may be provided for each heat exchange section.

[0048] Optionally, the first heat exchange section is disposed above the second heat exchange section.

[0049] The aforementioned air conditioner also includes a processor. The processor is configured to, in response to an anti-blowing command, obtain the temperature of the surface of the first heat exchange section and the temperature of the surface of the second heat exchange section, and control the first fan to reduce its speed when the temperature of the surface of the first heat exchange section is less than a first lower limit value, and control the second fan to reduce its speed when the temperature of the surface of the second heat exchange section is less than the second lower limit value.

[0050] Combination Figure 1 The present disclosure provides a method for controlling the air conditioner.

[0051] Combination Figure 2 As shown, the method for controlling an air conditioner includes:

[0052] S201, the processor responds to the anti-blowing command and obtains the temperature of the surface of the first heat exchange section and the temperature of the surface of the second heat exchange section.

[0053] S202, when the temperature of the surface of the first heat exchange section is lower than the first lower limit value, the processor controls the first fan to reduce its speed.

[0054] S203, when the temperature of the surface of the second heat exchange section is lower than the lower limit of the second temperature, the processor controls the second fan to reduce its speed.

[0055] The method for controlling an air conditioner provided in this disclosure detects the surface temperatures of the first and second heat exchange sections upon receiving an anti-condensation command. If the surface temperature of the first heat exchange section is below a first lower limit, the first fan reduces its speed; similarly, if the surface temperature of the second heat exchange section is below a second lower limit, the second fan reduces its speed. Lower surface temperatures indicate a higher likelihood of condensation formation, and reducing fan speed prevents excessive airflow that could blow out the condensation. By individually controlling the corresponding fan for each heat exchange section, regional control is achieved. This prevents condensation from being blown out while minimizing the impact on the air conditioner's operating efficiency.

[0056] The anti-dampness command can be a fixed command input by the user, allowing them to set it according to their actual needs. Alternatively, the anti-dampness command can be generated based on the air conditioner's start-up time. Specifically, it can be automatically generated upon startup or after a fixed period of time following startup. This activates the anti-dampness logic without user intervention.

[0057] Optionally, the method for determining the lower limit of the first temperature includes: the processor obtains the current dew point temperature and determines the lower limit of the first temperature based on the dew point temperature.

[0058] The method for determining the dew point temperature Td includes: the processor determines the dew point temperature based on the temperature Tg at the air inlet of the first heat exchange section and the relative humidity RH.

[0059] More specifically, calculate the dew point temperature Td = Tg - (100 - RH) / 5. Alternatively, determine the dew point temperature by looking up a table using an air enthalpy-humidity chart.

[0060] Optionally, the processor determines a first lower limit value based on the dew point temperature, including: the processor determines that the first lower limit value is the difference between the dew point temperature and the first temperature. Specifically, the first lower limit value is the difference between the dew point temperature and the first temperature. The first temperature is greater than or equal to 0. The dew point temperature is the temperature at which air is cooled to saturation. If the temperature of the surface of the first heat exchanger is less than or equal to the dew point temperature, it indicates that condensation is likely to form under the current conditions. Therefore, determining the first lower limit value based on the dew point temperature allows for a more accurate assessment of the condensation formation on the surface of the first heat exchanger, thereby adjusting the speed of the first fan in a timely manner to prevent condensation from being blown out and causing water blowing.

[0061] The first temperature ranges from [0℃ to 5℃]. More specifically, it can be 0℃, 1℃, 2℃, 3℃, 4℃, or 5℃.

[0062] Optionally, the method for determining the second lower temperature limit includes: the processor obtaining the current dew point temperature and determining the second lower temperature limit based on the dew point temperature. Specifically, the processor obtaining the current dew point temperature means that the processor determines the dew point temperature based on the temperature and relative humidity at the air inlet of the second heat exchange section.

[0063] Optionally, the processor determines the second lower limit value based on the dew point temperature, including: the processor determines the second lower limit value as the difference between the dew point temperature and the second temperature. Specifically, the second lower limit value is the difference between the dew point temperature and the second temperature. The second temperature is greater than or equal to 0. The dew point temperature is the temperature at which air is cooled to saturation. If the temperature of the surface of the second heat exchanger is less than or equal to the dew point temperature, it indicates that condensation is likely to form under the current conditions. Therefore, determining the second lower limit value based on the dew point temperature allows for a more accurate assessment of the condensation formation on the surface of the second heat exchanger, thereby adjusting the speed of the second fan in a timely manner to prevent condensation from being blown out and causing water blowing.

[0064] The second temperature ranges from 0°C to 5°C. More specifically, it can be 0°C, 1°C, 2°C, 3°C, 4°C, or 5°C.

[0065] Optionally, the processor controls the first fan to reduce its speed, including: the processor determines the rate of speed reduction based on the temperature of the second heat exchanger surface, and controls the first fan to reduce its speed according to the rate of reduction. When there is no significant obstruction between the first and second heat exchangers, the reduction in the speed of the first fan will also affect the airflow velocity on the surface of the second heat exchanger. Therefore, determining the rate of speed reduction of the first fan based on the temperature of the second heat exchanger surface helps improve the accuracy of the first fan's operation.

[0066] Optionally, the processor determines the speed reduction rate based on the temperature of the second heat exchanger surface, including: if the temperature of the second heat exchanger surface is greater than or equal to a first temperature threshold, the processor determines the speed reduction rate as a first reduction rate; if the temperature of the second heat exchanger surface is less than the first temperature threshold, the processor determines the speed reduction rate as a second reduction rate. Wherein, the first reduction rate is less than the second reduction rate; the first temperature threshold is less than or equal to the second lower temperature threshold. The first reduction rate and the second reduction rate are the ratio of the absolute value of the change in wind speed of the first fan within a first time period to the unit time. It can be understood that both the first reduction rate and the second reduction rate are positive numbers. That is, when the second fan is in a speed reduction state, the first fan is controlled to reduce its speed at a higher reduction rate. At this time, the demand of the second heat exchanger is also to reduce the wind speed. The first fan reducing the wind speed at a higher speed is beneficial to reducing the wind speed on the surface of the second heat exchanger and will not cause reverse interference.

[0067] The first temperature threshold can be further set to be equal to the second lower temperature threshold.

[0068] Optionally, the first decreasing rate ranges from 3 rpm / s to 10 rpm / s. Optionally, while maintaining the relative magnitude relationship between the first decreasing rate and the second decreasing rate, the greater the temperature difference between the surface temperature of the first heat exchange section and the lower limit of the first lower temperature, the greater the first decreasing rate.

[0069] Optionally, the processor controls the first fan to reduce its speed according to the reduction rate, including: the processor controls the first fan to reduce its speed according to the reduction rate until a safe speed is reached. The safe speed is less than the preset speed at which the first fan initially operates. After the safe speed is reached, the processor controls the first fan to maintain the safe speed until the surface temperature of the first heat exchange section is greater than or equal to a first lower temperature limit.

[0070] Optionally, the processor controls the first fan to reduce its speed according to the reduction rate, including: the processor controls the first fan to reduce its speed according to the reduction rate until the temperature of the surface of the first heat exchange section is greater than or equal to the first lower limit value.

[0071] Optionally, the processor controls the second fan to reduce its speed, including: the processor determines the rate of speed reduction based on the temperature of the surface of the first heat exchange section, and controls the second fan to reduce its speed based on the rate of speed reduction.

[0072] Optionally, the processor determines the speed reduction rate based on the temperature of the first heat exchanger surface, including: if the temperature of the first heat exchanger surface is greater than or equal to a second temperature threshold, the processor determines the speed reduction rate as a third reduction rate; if the temperature of the first heat exchanger surface is less than the second temperature threshold, the processor determines the speed reduction rate as a fourth reduction rate. The third reduction rate is less than the fourth reduction rate; the second temperature threshold is less than or equal to a first lower temperature threshold. The third and fourth reduction rates are the ratios of the absolute value of the change in wind speed of the first fan within a first time period to the unit time. It can be understood that both the third and fourth reduction rates are positive numbers. That is, when the first fan is in a speed reduction state, the second fan is controlled to reduce its speed at a higher reduction rate. At this time, the demand of the first heat exchanger is also to reduce the wind speed. The second fan reducing the wind speed at a higher speed is beneficial to reducing the wind speed on the surface of the first heat exchanger and will not cause reverse interference.

[0073] The second temperature threshold can be further set to be equal to the lower limit of the first temperature.

[0074] Optionally, the third reduction rate can be set to [3 rpm / s, 10 rpm / s].

[0075] Optionally, while maintaining the relative magnitudes of the third and fourth decreasing rates, the greater the temperature difference between the surface temperature of the second heat exchange section and the lower limit of the second lower temperature, the greater the first decreasing rate.

[0076] Optionally, the processor controls the second fan to reduce its speed according to the reduction rate, including: the processor controls the second fan to reduce its speed according to the reduction rate until a safe speed is reached. The safe speed is less than the preset speed at which the second fan initially operates. After the safe speed is reached, the processor controls the second fan to maintain the safe speed until the surface temperature of the second heat exchange section is greater than or equal to the second lower temperature limit.

[0077] Optionally, the processor controls the second fan to reduce its speed according to the reduction rate, including: the processor controls the second fan to reduce its speed according to the reduction rate until the temperature of the surface of the second heat exchange section is greater than or equal to the lower limit of the second temperature.

[0078] Combination Figure 3 As shown in the embodiments of this disclosure, another method for controlling an air conditioner is provided, including:

[0079] S301, the processor responds to the anti-blowing command and obtains the temperature of the surface of the first heat exchange section and the temperature of the surface of the second heat exchange section.

[0080] S302, when the temperature of the surface of the first heat exchange section is greater than or equal to the first upper temperature limit, the processor controls the first fan to increase its speed.

[0081] S303, when the temperature of the surface of the first heat exchange section is less than the first upper temperature limit and greater than the first lower temperature limit, the processor controls the first fan to maintain its original speed.

[0082] S304, when the wind speed on the surface of the first heat exchange section is less than or equal to the lower limit of the first temperature, the processor controls the first fan to reduce its speed.

[0083] S305, when the temperature of the surface of the second heat exchange section is greater than or equal to the upper limit of the second temperature, the processor controls the second fan to increase its speed.

[0084] S306, when the temperature of the surface of the second heat exchange section is less than the upper limit of the second temperature and greater than the lower limit of the second temperature, the processor controls the second fan to maintain its original speed.

[0085] S307, when the wind speed on the surface of the second heat exchange section is less than or equal to the lower limit of the second temperature, the processor controls the second fan to reduce its speed.

[0086] In this way, when the surface temperature of the heat exchange section is high and condensation is not likely to occur temporarily, the speed of the fan corresponding to that heat exchange section can be increased. This helps to promote heat exchange in that section, improve the operating efficiency of the air conditioner, and compensate for the losses caused by other fans reducing their speed.

[0087] The method for determining the first upper temperature limit includes: the processor obtains the current dew point temperature and determines the first upper temperature limit based on the current dew point temperature. The dew point temperature is determined based on the temperature and relative humidity at the air inlet of the first heat exchange section.

[0088] Optionally, the processor determines a first temperature upper limit based on the dew point temperature, including: the processor determines the first temperature upper limit as the sum of the dew point temperature and a third temperature. The third temperature is greater than or equal to 0. The dew point temperature is the temperature at which air is cooled to saturation. If the temperature of the surface of the first heat exchanger is higher than the dew point temperature, it indicates that condensation is unlikely to form under the current conditions. Therefore, determining the first temperature upper limit based on the dew point temperature allows for a more accurate assessment of the condensation formation on the surface of the first heat exchanger.

[0089] The third temperature ranges from 1°C to 5°C. More specifically, it can be 1°C, 2°C, 3°C, 4°C, or 5°C.

[0090] Optionally, the second upper temperature limit is determined by the processor obtaining the current dew point temperature and determining the second upper temperature limit based on the current dew point temperature. The dew point temperature is determined based on the temperature and relative humidity at the air inlet of the second heat exchange section.

[0091] Optionally, the processor determines a second upper temperature limit based on the dew point temperature, including: the processor determines the second upper temperature limit as the sum of the dew point temperature and a fourth temperature. The fourth temperature is greater than or equal to 0. The dew point temperature is the temperature at which air is cooled to saturation. If the temperature of the surface of the second heat exchanger is higher than the dew point temperature, it indicates that condensation is unlikely to form under the current conditions. Therefore, determining the second upper temperature limit based on the dew point temperature allows for a more accurate assessment of the condensation formation on the surface of the first heat exchanger.

[0092] The fourth temperature ranges from 1°C to 5°C. More specifically, it can be 1°C, 2°C, 3°C, 4°C, or 5°C.

[0093] Optionally, the processor controlling the first fan to increase its rotational speed includes: the processor determining the rate of increase of rotational speed based on the temperature of the surface of the second heat exchange section, and controlling the first fan to increase its rotational speed based on the rate of increase.

[0094] Optionally, the processor determines the rotational speed increase rate based on the temperature of the second heat exchanger surface, including: if the temperature of the second heat exchanger surface is greater than or equal to a third temperature threshold, the processor determines the rotational speed increase rate as a first increase rate; if the temperature of the second heat exchanger surface is less than the third temperature threshold, the processor determines the rotational speed increase rate as a second increase rate. The first increase rate is greater than the second increase rate. The third temperature threshold is greater than or equal to the lower limit of the second temperature threshold. In the absence of a clear obstruction between the first and second heat exchangers, the rate of increase of the first fan speed affects the airflow velocity on the surface of the second heat exchanger. If the rotational speed of the first fan increases rapidly, it causes a greater disturbance to the airflow velocity on the surface of the second heat exchanger, causing the airflow velocity on the surface of the second heat exchanger to tend to increase. If the temperature of the second heat exchanger surface is low, it indicates that condensation is more likely to form on the surface of the second heat exchanger. In this case, controlling the rotational speed of the first fan to increase at a lower increase rate helps to reduce the disturbance to the airflow velocity on the surface of the second heat exchanger and reduces the risk of blowing out condensation on the surface of the second heat exchanger.

[0095] Optionally, the second growth rate can be in the range of [3 rpm / s, 10 rpm / s].

[0096] Optionally, while maintaining the relative magnitude of the first growth rate and the second growth rate, the greater the temperature difference between the surface temperature of the first heat exchange section and the first upper temperature limit, the greater the second growth rate. This allows for a rapid increase in airflow speed, thereby improving heat dissipation performance, without blowing out condensation.

[0097] Optionally, the processor controls the first fan to increase its rotational speed according to the growth rate, including: the processor controls the first fan to increase its rotational speed according to the growth rate until it reaches a maximum rotational speed. The maximum rotational speed is greater than the preset rotational speed at which the first fan initially operates. After reaching the maximum rotational speed, the processor controls the first fan to maintain its maximum rotational speed until the surface temperature of the first heat exchange section is lower than a first upper temperature limit.

[0098] Optionally, the processor controls the first fan to increase its rotation speed according to the growth rate, including: the processor controls the first fan to increase its rotation speed according to the growth rate until the temperature of the surface of the first heat exchange section is less than the first upper temperature limit.

[0099] It is understandable that the effects of the first and second fans are overlapping. The above setup demonstrates the influence of the first fan speed on the surface velocity of the second heat exchanger. The second fan speed will have a similar effect on the surface velocity of the first heat exchanger. Therefore, corresponding to the above setup:

[0100] Optionally, the processor controls the second fan to increase its rotational speed by: the processor determining the rate of increase of rotational speed based on the temperature of the surface of the first heat exchange section, and controlling the second fan to increase its rotational speed based on the rate of increase.

[0101] Optionally, the processor determines the rotational speed increase rate based on the temperature of the first heat exchanger surface, including: if the processor determines the rotational speed increase rate as a third increase rate when the temperature of the first heat exchanger surface is greater than or equal to a fourth temperature threshold; and if the processor determines the rotational speed increase rate as a fourth increase rate when the temperature of the first heat exchanger surface is less than the fourth temperature threshold. Wherein, the third increase rate is greater than the fourth increase rate.

[0102] Optionally, the fourth growth rate can be in the range of [3 rpm / s, 10 rpm / s].

[0103] Optionally, while maintaining the relative magnitude of the third growth rate and the fourth growth rate, the greater the temperature difference between the surface temperature of the second heat exchange section and the upper limit of the second temperature, the greater the fourth growth rate.

[0104] Optionally, the processor controls the first fan to increase its rotational speed according to the growth rate, including: the processor controls the first fan to increase its rotational speed according to the growth rate until it reaches a maximum rotational speed. The maximum rotational speed is greater than the preset rotational speed at which the first fan initially operates. After reaching the maximum rotational speed, the processor controls the first fan to maintain its maximum rotational speed until the surface temperature of the first heat exchange section is lower than a first upper temperature limit.

[0105] Optionally, the processor controls the first fan to increase its rotation speed according to the growth rate, including: the processor controls the first fan to increase its rotation speed according to the growth rate until the temperature of the surface of the first heat exchange section is less than the first upper temperature limit.

[0106] Combination Figure 4 As shown in the embodiments of this disclosure, a method for controlling an air conditioner is provided, comprising:

[0107] S401, the processor controls the start-up of the first and second fans.

[0108] Specifically, the processor controls the first and second fans to start and run at preset speeds.

[0109] S402, after the startup time reaches the preset duration, the processor obtains the dew point temperature of the heat exchange air intake area.

[0110] The preset duration ranges from 5 minutes to 30 minutes. Setting the preset duration ensures that the air conditioner's operation is relatively stable during subsequent evaluation processes.

[0111] The heat exchange air inlet area refers to the air inlet of the area where the first and second heat exchange sections are located. (Combined with...) Figure 1 The dew point temperature of the air conditioner shown is determined based on the temperature and relative humidity of the air exchange inlet area.

[0112] S403: When the dew point temperature is greater than or equal to the startup temperature threshold, the processor generates a water-proof instruction.

[0113] S404, the processor responds to the anti-blowing command and obtains the temperature of the surface of the first heat exchange section and the temperature of the surface of the second heat exchange section.

[0114] S405, the processor adjusts the speed of the first fan according to the temperature of the surface of the first heat exchange section.

[0115] S406, the processor adjusts the speed of the second fan according to the temperature of the surface of the second heat exchange section.

[0116] The activation temperature threshold is less than -2℃, preferably -3℃. If the dew point temperature reaches this threshold, the condensation begins to condense into frost, making it difficult to blow out and reducing the likelihood of water seepage. However, if the dew point temperature is greater than or equal to the threshold, there is a risk of water seepage. In this case, an anti-water seepage command is generated to activate the anti-water seepage control logic to monitor the condensation and control water seepage. This setting avoids unnecessary execution of the anti-water seepage process.

[0117] Optionally, after obtaining the dew point temperature of the heat exchange air inlet area, the processor further includes: if the dew point temperature is lower than the start-up temperature threshold, the processor controls the first and second fans to increase their speeds. This helps ensure the overall heating performance of the air conditioner under low-temperature conditions.

[0118] Optionally, after the processor controls the first and second fans to increase their speeds, the process further includes: the processor obtaining the temperature of the surface of the first heat exchanger and the temperature of the surface of the second heat exchanger. If the temperature of either the surface of the first or second heat exchanger meets the defrosting conditions, the processor controls the air conditioner to start defrosting and stops the first and second fans. This enables automatic defrosting.

[0119] Optionally, after the processor controls the air conditioner to start defrosting, the process further includes: after defrosting is complete, the processor controls the first and second fans to start and operate at preset speeds. That is, after defrosting is complete, the process returns to normal. Figure 4 The control logic shown continues to monitor the operation.

[0120] Combination Figure 5As shown, this disclosure provides an apparatus 300 for controlling an air conditioner, including a processor 50 and a memory 51. Optionally, the apparatus may further include a communication interface 52 and a bus 53. The processor 50, communication interface 52, and memory 51 can communicate with each other via the bus 53. The communication interface 52 can be used for information transmission. The processor 50 can call logical instructions in the memory 51 to execute the method for controlling the air conditioner described in the above embodiment.

[0121] Furthermore, the logic instructions in the aforementioned memory 51 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0122] The memory 51, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 50 executes functional applications and data processing by running the program instructions / modules stored in the memory 51, that is, it implements the method for controlling the air conditioner in the above embodiments.

[0123] The memory 51 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 51 may include high-speed random access memory and may also include non-volatile memory.

[0124] Combination Figure 6 As shown, this disclosure provides an air conditioner 100, including an air conditioner body and the aforementioned device 200 for controlling the air conditioner. The device 200 for controlling the air conditioner is installed on the air conditioner body. The installation relationship described herein is not limited to placement inside the product, but also includes installation connections with other components of the product, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art will understand that the device 200 for controlling the air conditioner can be adapted to feasible product bodies to achieve other feasible embodiments.

[0125] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling an air conditioner.

[0126] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0127] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0128] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0129] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0130] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. 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 between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0131] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions 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 disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, characterized in that, The outdoor unit of the air conditioner includes: a first heat exchange section; a second heat exchange section; a first fan, disposed corresponding to the first heat exchange section; and a second fan, disposed corresponding to the second heat exchange section; the method includes: In response to the anti-blowing command, the temperature of the surface of the first heat exchange section and the temperature of the surface of the second heat exchange section are obtained; When the temperature of the surface of the first heat exchange section is lower than a first lower temperature limit, the speed of the first fan is controlled to decrease; wherein the first lower temperature limit is the difference between the dew point temperature and the first temperature; the control of the first fan speed to decrease includes: determining the rate of decrease of the speed based on the temperature of the surface of the second heat exchange section; and controlling the first fan speed to decrease based on the rate of decrease. When the temperature on the surface of the second heat exchange section is lower than the lower limit of the second lower temperature, the speed of the second fan is reduced; wherein the lower limit of the second lower temperature is the difference between the dew point temperature and the second temperature.

2. The method according to claim 1, characterized in that, The rate of decrease in rotational speed is determined based on the surface temperature of the second heat exchange section, including: When the temperature on the surface of the second heat exchange section is greater than or equal to the first temperature threshold, the rate of decrease in rotational speed is determined as the first rate of decrease. When the temperature on the surface of the second heat exchange section is less than the first temperature threshold, the rate of decrease in rotational speed is determined to be the second rate of decrease. Wherein, the first decreasing rate is less than the second decreasing rate; and the first temperature threshold is less than or equal to the second lower temperature limit.

3. The method according to claim 1, characterized in that, After obtaining the temperature of the surface of the first heat exchange section, the process also includes: When the temperature on the surface of the first heat exchange section is greater than or equal to the first upper temperature limit, the speed of the first fan is increased. When the temperature on the surface of the first heat exchange section is less than the first upper temperature limit but greater than the first lower temperature limit, the first fan is controlled to maintain its original rotation speed.

4. The method according to claim 3, characterized in that, Controlling the first fan to increase its speed includes: The rate of increase in rotational speed is determined based on the surface temperature of the second heat exchange section; The first fan is controlled to increase its rotational speed based on the stated growth rate. The first growth rate is greater than the second growth rate.

5. The method according to any one of claims 1 to 4, characterized in that, The methods for determining the anti-blowing instruction include: Control the start-up of the first and second fans; If the running time after startup reaches the preset time, the dew point temperature of the heat exchange air inlet area is obtained; When the dew point temperature is greater than or equal to the start-up temperature threshold, a water-prevention command is generated.

6. The method according to claim 5, characterized in that, After obtaining the dew point temperature of the heat exchange inlet air area, the following steps are also included: When the dew point temperature is lower than the start-up temperature threshold, control the first and second fans to increase their speed.

7. A device for controlling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the method for controlling an air conditioner as described in any one of claims 1 to 6.

8. An air conditioner, characterized in that, include: Air conditioner body; and, The device for controlling an air conditioner as described in claim 7 is installed on the air conditioner body; The outdoor unit of the air conditioner includes: First heat exchange section; Second heat exchange section; The first fan is installed corresponding to the first heat exchange section; The second fan is installed corresponding to the second heat exchange section.

9. A storage medium storing program instructions, characterized in that, When the program instructions are executed, they perform the method for controlling an air conditioner as described in any one of claims 1 to 6.

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