Control method, control device and medium

Abstract

The invention provides a control method, a control device and a medium. The control method comprises the steps that the air outlet state of the air conditioner is obtained, and when the air conditioner starts to enter the cold air outlet state, the humidity of an air outlet of the indoor unit is obtained so as to obtain the initial humidity; after the air conditioner enters the cold air outlet state, the current humidity at the air outlet is obtained, and the real-time humidity is obtained; and according to the magnitude relation between the real-time humidity and the initial humidity, whether the heating piece is in a heating state or not and / or the air deflector rotates upwards by a preset angle or not is determined. Through the technical scheme provided by the invention, the technical problem that condensation is easy to occur at the air deflector and the air outlet of the air conditioner in the prior art can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a control method, a control device and a medium. Background Art

[0002] At present, condensation on the air guide plate and the lower edge of the air outlet is a common problem when the air conditioner is discharging cold air. When the indoor unit of the air conditioner is working in cooling mode, the surface temperature of the evaporator will drop below the dew point temperature of the air, causing the water vapor in the air to condense into water droplets on the surface of the evaporator. These water droplets are usually discharged through the drainage system inside the air conditioner.

[0003] However, especially when the cold air blown by the indoor unit passes through the air guide plate and the lower edge of the air outlet, the temperature of these areas is lower than the indoor ambient temperature, resulting in a temperature difference, which leads to condensation. The water droplets formed by condensation will gather on the air guide plate and the lower edge of the air outlet, and eventually be blown out along with the cold air blown by the indoor unit, affecting the user's comfort and indoor environment. In addition, the generation of condensation may also increase the humidity of the air conditioning system, which has an adverse effect on the system performance, especially for air conditioning systems that pursue rapid cooling and drying effects, the appearance of condensation will reduce its efficiency. Summary of the invention

[0004] The main purpose of the present invention is to provide a control method, a control device and a medium to solve the technical problem that condensation is easy to occur at the air guide plate and the air outlet of the air conditioner in the prior art.

[0005] In order to achieve the above object, according to one aspect of the present invention, a control method is provided for an air conditioner, wherein an air guide plate of an indoor unit of the air conditioner is provided with a heating element for heating the air guide plate, and the control method comprises:

[0006] Obtain the air outlet state of the air conditioner, and when the air conditioner starts to enter the cold air outlet state, obtain the humidity at the air outlet of the indoor unit to obtain the initial humidity;

[0007] After the air conditioner enters the cold air state, the current humidity at the air outlet is obtained to obtain the real-time humidity;

[0008] According to the relationship between the real-time humidity and the initial humidity, it is determined whether to put the heating element into a heating state and / or to rotate the air guide plate upward by a preset angle.

[0009] Further, according to the relationship between the real-time humidity and the initial humidity, determining whether to put the heating element in a heating state and / or to rotate the air guide plate upward by a preset angle includes:

[0010] When the ratio of the real-time humidity to the initial humidity is less than a first preset ratio, the heating element is turned off and the air guide plate is maintained at a current rotation angle;

[0011] When the ratio of the real-time humidity to the initial humidity is greater than or equal to the first preset ratio and less than the second preset ratio, the air guide plate is rotated upward by a first preset angle;

[0012] When the ratio of the real-time humidity to the initial humidity is greater than or equal to a second preset ratio, the heating element is placed in a heating state, and the air guide plate is rotated upward by a second preset angle;

[0013] The second preset angle is greater than the first preset angle.

[0014] Further, when the ratio of the real-time humidity to the initial humidity is greater than or equal to a second preset ratio, the heating element is placed in a heating state, and the air guide plate is rotated upward by a second preset angle, including:

[0015] When the ratio of the real-time humidity to the initial humidity is greater than or equal to the second preset ratio and less than the third preset ratio, the heating element is placed in a heating state, and the air guide plate is rotated upward by a second preset angle;

[0016] When the ratio of the real-time humidity to the initial humidity is greater than or equal to the third preset ratio and less than the fourth preset ratio, the heating element is placed in a heating state, and the current real-time temperature of the indoor unit and the indoor environment in which the indoor unit is located is obtained to obtain the real-time inside temperature and the real-time outside temperature respectively; when the difference between the real-time inside temperature and the real-time outside temperature is greater than or equal to the first preset temperature difference, the air guide plate is rotated upward by a third preset angle; when the difference between the real-time inside temperature and the real-time outside temperature is less than the first preset temperature difference, the air guide plate is rotated upward by a second preset angle; wherein the third preset angle is greater than the second preset angle;

[0017] When the ratio of the real-time humidity to the initial humidity is greater than or equal to a fourth preset ratio, the air conditioner enters a dehumidification state.

[0018] Further, after the air guide plate is rotated upward by a third preset angle, the control method further includes:

[0019] The speed of the indoor unit fan is set to the maximum speed; and / or,

[0020] Reduce the operating frequency of the air conditioner's compressor by a preset frequency value.

[0021] Further, the first preset ratio is greater than or equal to 0.55 and less than or equal to 0.65; the second preset ratio is greater than or equal to 0.65 and less than or equal to 0.75; the third preset ratio is greater than or equal to 0.75 and less than or equal to 0.85; the fourth preset ratio is greater than or equal to 0.85 and less than or equal to 0.95; and / or,

[0022] The first preset temperature difference is greater than or equal to 3°C and less than or equal to 7°C.

[0023] Further, the control method further includes: obtaining the current real-time temperature inside the indoor unit and the indoor environment where the indoor unit is located, so as to obtain the real-time inside temperature and the real-time outside temperature respectively; after determining whether to put the heating element in a heating state and / or to rotate the air guide plate upward by a preset angle, the control method further includes:

[0024] According to the magnitude relationship between the real-time temperature inside and the real-time temperature outside, it is determined whether to make the heating element in the closed state enter the heating state or to make the heating element in the heating state continue to be in the heating state.

[0025] Further, according to the magnitude relationship between the inner real-time temperature and the outer real-time temperature, determining whether to make the heating element in the off state enter the heating state or to make the heating element in the heating state continue to be in the heating state includes:

[0026] When the difference between the real-time temperature inside and the real-time temperature outside is greater than or equal to a second preset temperature difference, the heating element is placed in a heating state, and the speed of the fan of the indoor unit is increased by a preset speed value;

[0027] When the difference between the real-time temperature inside and the real-time temperature outside is less than the second preset temperature difference, the heating element is turned off and the speed of the fan is set to the speed set by the user.

[0028] Further, the second preset temperature difference is greater than or equal to 2° C. and less than or equal to 3.5° C.; and / or,

[0029] Increasing the speed of the fan of the indoor unit by a preset speed value includes: obtaining the current speed of the fan; when the current speed of the fan is less than the maximum speed of the fan, increasing the speed of the fan by a preset speed value; when the current speed of the fan is the maximum speed, maintaining the speed of the fan at the maximum speed.

[0030] According to another aspect of the present invention, a control device is provided for executing the control method provided above, the control device comprising:

[0031] A first acquisition unit is used to acquire the air outlet state of the air conditioner, and when the air conditioner starts to enter the cold air outlet state, acquire the humidity at the air outlet of the indoor unit to obtain the initial humidity;

[0032] A second acquisition unit is used to acquire the current humidity at the air outlet after the air conditioner enters the cold air state to obtain the real-time humidity;

[0033] The control unit is used to determine whether to put the heating element into a heating state and / or to rotate the air guide plate upward by a preset angle according to the relationship between the real-time humidity and the initial humidity.

[0034] According to another aspect of the present invention, a nonvolatile storage medium is provided, the nonvolatile storage medium including a stored program, wherein when the program is running, the device where the nonvolatile storage medium is located is controlled to execute the control method provided above.

[0035] By applying the technical solution of the present invention, by respectively obtaining the humidity at the air outlet when the air conditioner starts cooling and the humidity at the air outlet during the air conditioner cooling process, and by calculating the magnitude relationship between the real-time humidity and the initial humidity, the degree of humidity change at the air outlet can be evaluated. When the magnitude relationship between the two reaches or exceeds a specific preset value, this indicates that the humidity at the air outlet has increased significantly, and there may be a risk of condensation. At this time, the control method will start the heating element to increase the surface temperature near the air outlet to prevent the humidity from reaching the dew point, thereby avoiding the occurrence of condensation. At the same time, the control method may also adjust the angle of the air guide plate and change the air outlet direction to avoid the condensation formed from blowing downward and blowing directly to the user, thereby affecting the user experience. Alternatively, the heating element is started at the same time and the angle of the air guide plate is adjusted, so as to increase the temperature at the air outlet to reduce the temperature difference between the inside and outside of the air outlet, and change the air outlet direction to avoid the condensation formed from blowing downward and blowing directly to the user. By monitoring the humidity changes at the air outlet of the indoor unit of the air conditioner, the heating state of the heating element and the rotation angle of the air guide plate are dynamically controlled, thereby achieving effective management of the humidity level at the air outlet, reducing the condensation phenomenon caused by excessive humidity, and avoiding the problem of poor user experience caused by condensation blowing directly on the human body. In this way, it is possible to intelligently decide whether to start the heating element and adjust the angle of the air guide plate based on the real-time humidity and the operating state of the air conditioner, thereby improving the operating efficiency of the air conditioner in the cold air outlet state and the user comfort. Therefore, the technical solution of the present invention can solve the technical problem of condensation easily occurring at the air guide plate and air outlet of the air conditioner in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0037] Figure 1 A schematic diagram showing the steps of a control method provided according to Embodiment 1 of the present invention is shown;

[0038] Figure 2 A logical schematic diagram of a control method provided according to the first embodiment of the present invention is shown. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] like Figure 1 and Figure 2 As shown, embodiment 1 of the present invention provides a control method, which is used for an air conditioner. A heating element for heating the air guide plate is provided on the air guide plate of the indoor unit of the air conditioner. The control method includes: obtaining the air outlet state of the air conditioner, and when the air conditioner starts to enter the cold air outlet state, obtaining the humidity at the air outlet of the indoor unit to obtain the initial humidity; after the air conditioner enters the cold air outlet state, obtaining the current humidity at the air outlet to obtain the real-time humidity; and determining whether to put the heating element into the heating state and / or rotate the air guide plate upward by a preset angle according to the relationship between the real-time humidity and the initial humidity.

[0041] By adopting the control method provided in the first embodiment of the present invention, by respectively obtaining the humidity at the air outlet when the air conditioner starts cooling and the humidity at the air outlet during the air conditioner cooling process, and by calculating the magnitude relationship between the real-time humidity and the initial humidity, the degree of humidity change at the air outlet can be evaluated. When the magnitude relationship between the two reaches or exceeds a specific preset value, this indicates that the humidity at the air outlet has increased significantly, and there may be a risk of condensation. At this time, the control method will start the heating element to increase the surface temperature near the air outlet to prevent the humidity from reaching the dew point, thereby avoiding the occurrence of condensation. At the same time, the control method may also adjust the angle of the air guide plate and change the air outlet direction to avoid the condensation formed from blowing downward and blowing directly to the user, thereby affecting the user experience. Alternatively, the heating element is started and the angle of the air guide plate is adjusted at the same time, so as to increase the temperature at the air outlet to reduce the temperature difference between the inside and outside of the air outlet, and change the air outlet direction to avoid the condensation formed from blowing downward and blowing directly to the user. By monitoring the humidity changes at the air outlet of the indoor unit of the air conditioner, the heating state of the heating element and the rotation angle of the air guide plate are dynamically controlled, thereby achieving effective management of the humidity level at the air outlet, reducing the condensation phenomenon caused by excessive humidity, and avoiding the problem of poor user experience caused by condensation blowing directly on the human body. In this way, it is possible to intelligently decide whether to start the heating element and adjust the angle of the air guide plate based on the real-time humidity and the operating state of the air conditioner, thereby improving the operating efficiency and user comfort of the air conditioner in the cold air outlet state. Therefore, the control method provided in this embodiment can solve the technical problem of condensation easily occurring at the air guide plate and air outlet of the air conditioner in the prior art.

[0042] It should be noted that the air guide plate is rotatably arranged at the air outlet of the indoor unit.

[0043] It should be noted that the cold air outlet state refers to the air blown out from the air outlet of the indoor unit being used to cool down the indoor environment for heat exchange.

[0044] Specifically, the heating element is a heating copper wire installed in the air guide plate, and the maximum temperature of the heating copper wire does not exceed 25°C.

[0045] Specifically, according to the relationship between the real-time humidity and the initial humidity, the method for determining whether to put the heating element in a heating state and / or to rotate the air guide plate upward by a preset angle includes: when the ratio of the real-time humidity to the initial humidity is less than the first preset ratio, the heating element is in a closed state and the air guide plate is maintained at the current rotation angle; when the ratio of the real-time humidity to the initial humidity is greater than or equal to the first preset ratio and less than the second preset ratio, the air guide plate is rotated upward by the first preset angle; when the ratio of the real-time humidity to the initial humidity is greater than or equal to the second preset ratio, the heating element is in a heating state and the air guide plate is rotated upward by a second preset angle; wherein the second preset angle is greater than the first preset angle. With such a setting, by comparing the real-time humidity with the initial humidity, the system can intelligently determine whether it is necessary to start the heating element to prevent condensation, and whether to adjust the angle of the air guide plate to improve the wind direction, so as to ensure that the humidity of the indoor air does not cause discomfort or damage. When the humidity ratio is less than the first preset ratio, it means that the real-time humidity is not high and the risk of condensation is low. At this time, there is no need to turn on the heating element, and the current angle of the air guide plate can be maintained, thereby avoiding unnecessary energy consumption. When the humidity ratio is greater than or equal to the first preset ratio and less than the second preset ratio, the real-time humidity increases, and a small amount of condensation may be generated at this time. There is no need to turn on the heating element, because the heating effect of the heating element will also have a certain impact on the outlet air temperature. Instead, it is only necessary to rotate the air guide plate upward by the first preset angle to avoid the possible condensation from directly affecting the user experience. When the humidity ratio is greater than or equal to the second preset ratio, the real-time humidity is relatively higher, and more condensation may be generated. Therefore, it is necessary to turn on the heating element to reduce the temperature difference between the inside and outside of the air outlet, and at the same time rotate the air guide plate upward by a larger angle to further reduce the impact on the user. In this way, by setting different humidity ratio thresholds, the system can make different levels of adjustments according to the severity of humidity changes to achieve more precise control.

[0046] Specifically, when the ratio of the real-time humidity to the initial humidity is greater than or equal to the second preset ratio, the method of placing the heating element in a heating state and rotating the air guide plate upward by a second preset angle includes: when the ratio of the real-time humidity to the initial humidity is greater than or equal to the second preset ratio and less than the third preset ratio, placing the heating element in a heating state and rotating the air guide plate upward by a second preset angle; when the ratio of the real-time humidity to the initial humidity is greater than or equal to the third preset ratio and less than the fourth preset ratio, placing the heating element in a heating state, and obtaining the current real-time temperature inside the indoor unit and the indoor environment where the indoor unit is located, so as to obtain the real-time temperature inside and the real-time temperature outside respectively; when the difference between the real-time temperature inside and the real-time temperature outside is greater than or equal to the first preset temperature difference, rotating the air guide plate upward by a third preset angle; when the difference between the real-time temperature inside and the real-time temperature outside is less than the first preset temperature difference, rotating the air guide plate upward by a second preset angle; wherein the third preset angle is greater than the second preset angle; when the ratio of the real-time humidity to the initial humidity is greater than or equal to the fourth preset ratio, placing the air conditioner in a dehumidification state. With such a setting, when the humidity ratio reaches a certain level, not only the heating element is started, but also the inclination angle of the air guide plate is adjusted according to the further change of the temperature difference, which enhances the control flexibility and efficiency of the system. When the humidity ratio is greater than or equal to the second preset ratio and less than the third preset ratio, the real-time humidity is relatively high at this time, so the heating element is turned on accordingly to reduce the temperature difference inside and outside the air outlet, and the air guide plate is turned upward at a larger angle to further reduce the impact on the user. When the humidity ratio is greater than or equal to the third preset ratio and less than the fourth preset ratio, it is necessary to further introduce temperature difference control, and adjust the angle of the air guide plate according to the temperature difference between the indoor and outdoor environments of the indoor unit, which can effectively reduce the condensation phenomenon caused by the air temperature difference, while maintaining a good cooling or heating effect. Because if the temperature difference is large, the cold air blown out by the air conditioner contacts the higher temperature air in the room, and a lower temperature area will be formed near the air guide plate and the air outlet. When the cold air encounters these areas, its temperature is easy to drop below the dew point temperature, causing the moisture in the air to condense, especially when the air humidity is high at this time. By setting the second and third preset angles, the system can make a more precise response according to the size of the temperature difference, avoiding the limitations that may exist in a single control strategy. When the humidity ratio reaches the fourth preset ratio, the real-time humidity is higher, and the system switches the air conditioner to the dehumidification state, which can effectively handle extremely high humidity environments and prevent excessive condensation inside the air conditioner and the surrounding environment.

[0047] Specifically, the third preset angle is the maximum rotation angle of the air guide plate. When the air guide plate is rotated upward by the third preset angle, the air-conditioned air sent out from the air outlet will blow upward. In this way, condensation dripping can be prevented from affecting the user experience, while also maintaining the performance and life of the air-conditioning equipment. In addition, the upward wind flow reduces direct contact with room temperature air, reducing the possibility of condensation water precipitation.

[0048] Specifically, the upward rotation angle of the air guide plate is adjusted according to the gear position, the first preset angle corresponds to the first gear, the second preset angle corresponds to the second gear, and the third preset angle corresponds to the third gear.

[0049] It should be noted that the dehumidification state refers to the dehumidification mode of the air conditioner.

[0050] Specifically, after the air guide plate is rotated upward by a third preset angle, the control method further includes: setting the rotation speed of the fan of the indoor unit to the maximum rotation speed. With such a setting, the heat exchange of the indoor evaporator can be accelerated by increasing the rotation speed of the fan to the maximum rotation speed, so that the inner ring temperature and the internal temperature of the indoor unit are close as soon as possible, thereby preventing excessive condensation.

[0051] Specifically, after the air guide plate is rotated upward by a third preset angle, the control method further includes: reducing the operating frequency of the compressor of the air conditioner by a preset frequency value. With such a setting, the cooling output of the air conditioner can be reduced to prevent the inner pipe temperature from being too low and generating more condensation. In this way, through more precise control, unnecessary waste of cooling can be avoided, thereby achieving optimization of energy efficiency, preventing over-cooling under extreme conditions, and keeping the indoor temperature within a comfortable range.

[0052] Specifically, the operating frequency of the compressor is adjusted according to the gear position, and the preset frequency value is the frequency difference between adjacent gear positions. Lowering the preset frequency value can be understood as lowering the operating frequency of the compressor by one gear. In this way, by adjusting the operating frequency of the compressor according to the gear position, more precise and flexible cooling output control can be performed according to different environmental conditions and system requirements. The preset frequency value, as the frequency difference between adjacent gear positions, provides a standardized adjustment method for the system, so that the frequency adjustment has a clear quantitative standard.

[0053] In this embodiment, the first preset ratio is greater than or equal to 0.55 and less than or equal to 0.65; the second preset ratio is greater than or equal to 0.65 and less than or equal to 0.75; the third preset ratio is greater than or equal to 0.75 and less than or equal to 0.85; the fourth preset ratio is greater than or equal to 0.85 and less than or equal to 0.95. With such a setting, by setting the first, second, third and fourth preset ratios, the system can take different control measures according to the change in the ratio of real-time humidity to initial humidity, thereby effectively managing indoor humidity and reducing condensation. As the humidity ratio increases, the control measures taken by the system are gradually strengthened, from turning off the heating element and maintaining the angle of the air guide plate, to turning on the heating element and adjusting the angle of the air guide plate, to the joint control of the heating element, the angle of the air guide plate and the fan speed, and finally entering the dehumidification state. This progressive control strategy can respond to different humidity conditions more accurately and efficiently. The hierarchical control of humidity ratios can not only reduce discomfort during air-conditioning use, such as condensation and direct cold air caused by excessive humidity, but also ensure the stable operation of the system under different humidity conditions and improve the overall performance.

[0054] Specifically, the first preset ratio is 0.6, the second preset ratio is 0.7, the third preset ratio is 0.8, and the fourth preset ratio is 0.9.

[0055] In this embodiment, the first preset temperature difference is greater than or equal to 3°C and less than or equal to 7°C. With such a setting, by setting the first preset temperature difference, when the temperature difference between the indoor unit and the environment reaches this threshold, a more active wind deflector angle adjustment strategy is adopted, which can effectively reduce the condensation phenomenon caused by the temperature difference. In addition, the implementation of the temperature difference control strategy can avoid excessive operation of the compressor and reduce energy waste. Especially in a high humidity environment, more economical energy use can be achieved by effectively controlling the temperature difference.

[0056] Specifically, the first preset temperature difference is 5°C.

[0057] Specifically, the control method further includes: obtaining the current real-time temperature of the indoor unit and the indoor environment where the indoor unit is located, so as to obtain the real-time temperature inside and the real-time temperature outside respectively; after determining whether to put the heating element in the heating state and / or to rotate the air guide plate upward by a preset angle, the control method further includes: determining whether to put the heating element in the off state into the heating state or to make the heating element in the heating state continue to be in the heating state according to the magnitude relationship between the real-time temperature inside and the real-time temperature outside. With such a setting, by obtaining the real-time temperature inside the indoor unit and the indoor environment where it is located, that is, the real-time temperature inside and the real-time temperature outside, the system can monitor the temperature difference change in real time, which is the key basis for judging whether to start the heating element. Based on the magnitude relationship between the real-time temperature inside and outside, the system automatically determines whether the heating element should enter the heating state or continue to heat. This intelligent control can ensure that the heating element plays a role when it is most needed, and improve the efficiency and effect of air conditioning dehumidification.

[0058] It should be noted that the current real-time temperature inside the indoor unit corresponds to the inside real-time temperature, and the current real-time temperature of the indoor environment where the indoor unit is located corresponds to the outside real-time temperature.

[0059] Specifically, according to the magnitude relationship between the real-time temperature inside and the real-time temperature outside, the method for determining whether to make the heating element in the off state enter the heating state or to make the heating element in the heating state continue to be in the heating state includes: when the difference between the real-time temperature inside and the real-time temperature outside is greater than or equal to the second preset temperature difference, the heating element is in the heating state, and the speed of the fan of the indoor unit is increased by the preset speed value; when the difference between the real-time temperature inside and the real-time temperature outside is less than the second preset temperature difference, the heating element is in the off state, and the speed of the fan is set by the user. With such a setting, when the difference between the real-time temperature inside and the real-time temperature outside is less than the second preset temperature difference, the system will turn off the heating element and restore the speed of the fan to the speed set by the user. This dynamic adjustment avoids unnecessary energy consumption and realizes a more economical operation mode. Setting the second preset temperature difference as the trigger condition for starting and shutting down the heating element can ensure that the activation and deactivation of the heating element are within a reasonable range, avoid system instability caused by frequent startup and shutdown, and also prevent energy waste caused by long-term operation of the heating element. When the temperature difference is small and no heating or dehumidification is required, the system restores the fan speed to the speed set by the user. This reflects the priority of user needs and allows users to adjust the air-conditioning operation according to their personal preferences, thereby improving the personalization and comfort of air-conditioning use.

[0060] It should be noted that the rotation speed set by the user is the original rotation speed before the fan rotation speed is adjusted according to the control method.

[0061] In this embodiment, the second preset temperature difference value is greater than or equal to 2°C and less than or equal to 3.5°C. With such a setting, the system automatically starts the heating element when it detects that the temperature difference reaches this range, effectively dealing with the condensation caused by the temperature difference. By setting a more specific temperature difference threshold, the system can more accurately determine when the heating element needs to be started, avoiding energy waste or insufficient dehumidification caused by starting too early or too late. A reasonable temperature difference threshold helps the system to operate stably under different environmental conditions, ensuring the dehumidification effect, while avoiding system wear that may be caused by frequent starting and shutting down of the heating element.

[0062] Specifically, the second preset temperature difference is 2°C.

[0063] In this embodiment, the method for increasing the speed of the fan of the indoor unit by a preset speed value includes: obtaining the current speed of the fan; when the current speed of the fan is less than the maximum speed of the fan, increasing the speed of the fan by a preset speed value; when the current speed of the fan is the maximum speed, maintaining the speed of the fan at the maximum speed. In this way, during the process of increasing the speed of the fan, the preset speed value set by the system ensures that the increase in the speed will not exceed the maximum speed, avoiding the safety risks and equipment damage that may be caused by excessive speed. At all times, the system will ensure that the speed of the fan does not exceed the maximum speed, which not only helps the dehumidification efficiency, but also ensures that the user can feel comfortable and the wind speed is not too strong in any mode of the air conditioner.

[0064] Specifically, the speed of the fan is adjusted according to the gear, and the preset speed value is less than or equal to the speed difference between adjacent gears. Therefore, when the current speed of the fan is less than the maximum speed, the sum of the current speed and the preset speed value is less than or equal to the maximum speed. With such a setting, by adjusting the speed of the fan according to the gear, the system can perform more precise wind speed control according to actual needs and avoid the discomfort caused by sudden changes in speed. The preset speed value is set to be less than or equal to the speed difference between the gears, which ensures that the speed increase is within a safe and reasonable range, preventing the performance and life of the fan from being affected by excessive speed increase.

[0065] Specifically, the preset rotation speed value is equal to the rotation speed difference between adjacent gears.

[0066] like Figure 2As shown, the control logic of the control method includes: after the air conditioner is turned on and starts to blow cold air, the humidity sensor arranged under the air guide plate starts to collect data and record the initial humidity S1 of the air guide plate and the lower edge of the air outlet. At the same time, the temperature sensors inside and outside the lower edge of the air outlet are also started, and the internal temperature T1 of the internal machine (equivalent to the real-time temperature inside) and the external indoor ambient temperature T2 (equivalent to the real-time temperature outside) are recorded respectively, providing a basis for subsequent temperature control. When the air conditioner is running in cooling mode, as the cold air continues to blow out, the humidity sensor will continue to detect the real-time humidity S2 of the lower edge of the air outlet. The control unit determines the angle adjustment of the air guide plate and the working state of the heating element according to the ratio change of S2 to S1.

[0067] Specifically, when the ratio of S2 / S1 reaches the range of [0.6, 0.7), the control unit will instruct the angle of the indoor unit air guide plate to be raised by one gear. In this gear adjustment, the angle change of the air guide plate is set to the first preset angle. This adjustment is intended to reduce the humidity at the air outlet and prevent condensation by changing the wind direction. In order to further improve the effect of humidity management, under the current humidity ratio, when the temperature difference between T2 and T1 reaches or exceeds 2°C, the control unit will start the heating element to perform heating operations, and at the same time increase the speed of the indoor unit fan to increase the gear operation. The heating element here refers to the electric heating copper wire installed on the air guide plate. Its function is to heat the air guide plate and increase the temperature of the air guide plate surface, thereby reducing the condensation phenomenon when the cold air contacts the air guide plate. If the fan is currently running in the super gear, the speed will be maintained at this gear until the temperature difference between T2 and T1 is less than 2°C again, at which time the heating element will be turned off and the fan speed will return to the user-set or original gear.

[0068] Specifically, as the humidity ratio increases, when S2 / S1 reaches the range of [0.7, 0.8), at this stage, the control unit will not only start the heating element, but also raise the angle of the air guide plate by one gear on the basis of the first preset angle, that is, the second preset angle. The logic behind this strategy is that when the humidity is high, the adjustment and heating of the first preset angle alone may not be enough to effectively prevent condensation, and a larger wind direction change and more efficient heating are required to cope with it.

[0069] Specifically, when the ratio of S2 / S1 continues to increase and reaches the range of [0.8, 0.9), and the temperature difference between T2 and T1 is greater than or equal to 5°C, the air guide plate will be raised to the top position, that is, the third preset angle, to change the wind direction to the greatest extent, ensuring that condensation will not blow directly to people or sensitive areas. At the same time, the electric heating copper wire at the bottom of the air guide plate and the air outlet will be powered on, the speed of the indoor fan will instantly increase to the maximum speed, and the operating frequency of the outdoor compressor will be reduced to the preset frequency value to reduce energy consumption and maintain efficient cooling.

[0070] Specifically, when the ratio of S2 / S1 reaches or exceeds 0.9, the air conditioner will automatically enter dehumidification mode. In dehumidification mode, the main task of the air conditioner is to reduce indoor humidity rather than cooling. This mode adjusts the operating frequency of the compressor and uses the condensation principle to condense the moisture in the air and discharge it outdoors, thereby reducing indoor humidity and providing users with a drier and more comfortable environment.

[0071] In this embodiment, the design of the entire control method and control device fully considers the humidity and temperature changes of the indoor environment. By intelligently adjusting the angle of the air guide plate, the working state of the heating element, the speed of the fan, and the operating frequency of the compressor, the air conditioner can effectively control the condensation phenomenon in the cooling mode, which not only improves the user experience, but also reduces energy consumption and enhances the efficiency and comfort of the air conditioner operation. In addition, the setting of each preset ratio, temperature difference value and preset frequency value in the control method provides a more flexible and accurate control strategy for the air conditioner, so that it can better adapt to different environments and user needs.

[0072] Embodiment 2 of the present invention provides a control device, which is used to execute the control method provided in embodiment 1, and the control device includes a first acquisition unit, a second acquisition unit and a control unit. The first acquisition unit is used to acquire the air outlet state of the air conditioner, and when the air conditioner begins to enter the cold air outlet state, acquire the humidity at the air outlet of the indoor unit to obtain the initial humidity. The second acquisition unit is used to acquire the current humidity at the air outlet after the air conditioner enters the cold air outlet state to obtain the real-time humidity. The control unit is used to determine whether to put the heating element in the heating state and / or rotate the air guide plate upward by a preset angle based on the relationship between the real-time humidity and the initial humidity.

[0073] By using the control device provided in the second embodiment of the present invention, the humidity at the air outlet when the air conditioner starts cooling and the humidity at the air outlet during the air conditioner cooling process are obtained respectively, and the magnitude relationship between the real-time humidity and the initial humidity is calculated, the degree of humidity change at the air outlet can be evaluated. When the magnitude relationship between the two reaches or exceeds a specific preset value, this indicates that the humidity at the air outlet has increased significantly, and there may be a risk of condensation. At this time, the control method will start the heating element to increase the surface temperature near the air outlet to prevent the humidity from reaching the dew point, thereby avoiding the occurrence of condensation. At the same time, the control method may also adjust the angle of the air guide plate and change the air outlet direction to avoid the formed condensation from blowing downward and blowing directly to the user, thereby affecting the user experience. Alternatively, the heating element is started and the angle of the air guide plate is adjusted at the same time, so as to increase the temperature at the air outlet to reduce the temperature difference between the inside and outside of the air outlet, and change the air outlet direction to avoid the formed condensation from blowing downward and blowing directly to the user. By monitoring the humidity changes at the air outlet of the indoor unit of the air conditioner, the heating state of the heating element and the rotation angle of the air guide plate are dynamically controlled, thereby achieving effective management of the humidity level at the air outlet, reducing the condensation phenomenon caused by excessive humidity, and avoiding the problem of poor user experience caused by condensation blowing directly on the human body. In this way, it is possible to intelligently decide whether to start the heating element and adjust the angle of the air guide plate based on the real-time humidity and the operating state of the air conditioner, thereby improving the operating efficiency of the air conditioner in the cold air outlet state and the user comfort. Therefore, the control device provided in this embodiment can solve the technical problem of condensation being easy to occur at the air guide plate and air outlet of the air conditioner in the prior art.

[0074] Embodiment 3 of the present invention provides a non-volatile storage medium, wherein the non-volatile storage medium includes a stored program, wherein when the program is running, the device where the non-volatile storage medium is located is controlled to execute the control method provided in embodiment 1.

[0075] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: by modifying the air guide plate and the lower edge of the air outlet of the air-conditioning indoor unit, installing electric heating copper wire, and adjusting the air guide plate angle and the compressor frequency, the condensation phenomenon of the indoor unit is effectively controlled, the comfort level is improved, and the user experience is enhanced.

[0076] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0077] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0078] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0079] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0080] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A control method for an air conditioner, wherein an air guide plate of an indoor unit of the air conditioner is provided with a heating element for heating the air guide plate, characterized in that: The control method comprises: Acquire the air outlet state of the air conditioner, and when the air conditioner starts to enter the cold air outlet state, acquire the humidity at the air outlet of the indoor unit to obtain the initial humidity; After the air conditioner enters the cold air outlet state, obtaining the current humidity at the air outlet to obtain the real-time humidity; According to the magnitude relationship between the real-time humidity and the initial humidity, it is determined whether to put the heating element into a heating state and / or to rotate the air guide plate upward by a preset angle.

2. The control method according to claim 1, characterized in that: The determining, based on the magnitude relationship between the real-time humidity and the initial humidity, whether to put the heating element in a heating state and / or to rotate the air guide plate upward by a preset angle comprises: When the ratio of the real-time humidity to the initial humidity is less than a first preset ratio, the heating element is turned off and the air guide plate is maintained at a current rotation angle; When the ratio of the real-time humidity to the initial humidity is greater than or equal to the first preset ratio and less than the second preset ratio, the air guide plate is rotated upward by a first preset angle; When the ratio of the real-time humidity to the initial humidity is greater than or equal to the second preset ratio, the heating element is placed in the heating state, and the air guide plate is rotated upward by a second preset angle; Wherein, the second preset angle is greater than the first preset angle.

3. The control method according to claim 2, characterized in that: When the ratio of the real-time humidity to the initial humidity is greater than or equal to the second preset ratio, the heating element is placed in the heating state, and the air guide plate is rotated upward by a second preset angle, including: When the ratio of the real-time humidity to the initial humidity is greater than or equal to the second preset ratio and less than the third preset ratio, the heating element is placed in the heating state, and the air guide plate is rotated upward by the second preset angle; When the ratio of the real-time humidity to the initial humidity is greater than or equal to the third preset ratio and less than a fourth preset ratio, the heating element is placed in the heating state, and the current real-time temperature of the interior of the indoor unit and the indoor environment in which the indoor unit is located is obtained to obtain the real-time inside temperature and the real-time outside temperature, respectively; when the difference between the real-time inside temperature and the real-time outside temperature is greater than or equal to the first preset temperature difference, the air guide plate is rotated upward by a third preset angle; when the difference between the real-time inside temperature and the real-time outside temperature is less than the first preset temperature difference, the air guide plate is rotated upward by the second preset angle; wherein the third preset angle is greater than the second preset angle; When the ratio of the real-time humidity to the initial humidity is greater than or equal to the fourth preset ratio, the air conditioner enters a dehumidification state.

4. The control method according to claim 3, characterized in that: After the air guide plate is rotated upward by a third preset angle, the control method further includes: The rotation speed of the fan of the indoor unit is set to the maximum rotation speed; and / or, The operating frequency of the compressor of the air conditioner is reduced by a preset frequency value.

5. The control method according to claim 3, characterized in that: The first preset ratio is greater than or equal to 0.55 and less than or equal to 0.65; the second preset ratio is greater than or equal to 0.65 and less than or equal to 0.75; the third preset ratio is greater than or equal to 0.75 and less than or equal to 0.85; the fourth preset ratio is greater than or equal to 0.85 and less than or equal to 0.95; and / or, The first preset temperature difference is greater than or equal to 3°C and less than or equal to 7°C.

6. The control method according to claim 1, characterized in that: The control method further includes: acquiring the current real-time temperature of the interior of the indoor unit and the indoor environment where the indoor unit is located, so as to obtain the real-time inside temperature and the real-time outside temperature respectively; after determining whether to put the heating element in a heating state and / or to rotate the air guide plate upward by a preset angle, the control method further includes: According to the magnitude relationship between the inner real-time temperature and the outer real-time temperature, it is determined whether to make the heating element in the closed state enter the heating state or to make the heating element in the heating state continue to be in the heating state.

7. The control method according to claim 6, characterized in that: The determining, based on the magnitude relationship between the inner real-time temperature and the outer real-time temperature, whether to make the heating element in the off state enter the heating state or to make the heating element in the heating state continue to be in the heating state comprises: When the difference between the real-time temperature inside and the real-time temperature outside is greater than or equal to a second preset temperature difference, the heating element is placed in the heating state, and the speed of the fan of the indoor unit is increased by a preset speed value; When the difference between the real-time temperature inside and the real-time temperature outside is less than the second preset temperature difference, the heating element is placed in the closed state, and the rotation speed of the fan is set to the rotation speed set by the user.

8. The control method according to claim 7, characterized in that: The second preset temperature difference is greater than or equal to 2°C and less than or equal to 3.5°C; and / or, The method of increasing the rotation speed of the fan of the indoor unit by a preset rotation speed value comprises: obtaining the current rotation speed of the fan; when the current rotation speed of the fan is less than the maximum rotation speed of the fan, increasing the rotation speed of the fan by a preset rotation speed value; when the current rotation speed of the fan is the maximum rotation speed, maintaining the rotation speed of the fan at the maximum rotation speed.

9. A control device, characterized in that: For executing the control method according to any one of claims 1 to 8, the control device comprises: A first acquisition unit is used to acquire the air outlet state of the air conditioner, and when the air conditioner starts to enter the cold air outlet state, acquire the humidity at the air outlet of the indoor unit to obtain the initial humidity; A second acquisition unit is used to acquire the current humidity at the air outlet after the air conditioner enters the cold air outlet state to obtain the real-time humidity; The control unit is used to determine whether to put the heating element into a heating state and / or to rotate the air guide plate upward by a preset angle according to the relationship between the real-time humidity and the initial humidity.

10. A non-volatile storage medium, characterized in that: The non-volatile storage medium includes a stored program, wherein when the program is executed, the device where the non-volatile storage medium is located is controlled to execute the control method according to any one of claims 1 to 8.

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