Air conditioner and control method and device thereof, storage medium and computer program product

Abstract

The invention discloses an air conditioner and a control method and device thereof, a storage medium and a computer program product.The method comprises the steps that when the air conditioner runs in a refrigeration mode, according to the current indoor environment temperature, the current indoor environment humidity and the current indoor heat exchanger pipe temperature, if it is determined that the air conditioner needs to enter a preset anti-condensation mode, the preset anti-condensation mode is started; if yes, the air conditioner is controlled to enter a preset anti-condensation mode; according to the current freeze-frame position of the air deflector, the current air sweeping angle of the air sweeping blade and the current indoor environment humidity, the current rotating speed of the indoor fan is corrected, the corrected rotating speed of the indoor fan is obtained, and the indoor fan is controlled to operate according to the corrected rotating speed of the indoor fan; and according to the current indoor environment temperature and / or the current indoor environment humidity, the air conditioner is controlled to exit a preset anti-condensation mode. According to the scheme, in the anti-condensation mode, the rotating speed of the indoor fan is corrected according to the freeze-frame position of the air guide plate of the indoor unit and the air sweeping angle of the air sweeping blade, so that condensation is reduced, the indoor comfort is improved, and the user experience is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and specifically relates to a control method, device, air conditioner, storage medium and computer program product of an air conditioner, and in particular to a control method, device, air conditioner, storage medium and computer program product for preventing condensation of an air conditioner. Background Art

[0002] When the air conditioner is in cooling operation and the indoor humidity is high, large condensation droplets are easily formed on the surface of the evaporator, causing condensation to easily form at the air outlet of the air conditioner or on the indoor unit panel of the air conditioner, dripping onto the ground or blowing onto the user, affecting the user experience.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The object of the present invention is to provide a control method, device, air conditioner, storage medium and computer program product for an air conditioner, so as to solve the problem that when the indoor humidity is high during the cooling operation of the air conditioner, condensation is easily formed on the surface of the indoor heat exchanger, and the condensation water drips onto the ground or blows onto the user, affecting the user experience. The purpose of the present invention is to achieve the effect of reducing condensation, improving indoor comfort and enhancing user experience by correcting the rotation speed of the indoor fan according to the fixed position of the air guide plate of the indoor unit and the sweeping angle of the wind sweeping blade in the anti-condensation mode.

[0005] The present invention provides a control method for an air conditioner, wherein the indoor unit of the air conditioner has an indoor heat exchanger, an indoor fan and an air outlet; the air outlet has an air guide plate and a wind sweeping blade; the air guide plate can be in different fixed positions, and the wind sweeping blade can be in different wind sweeping angles; the control method of the air conditioner comprises: in the case of cooling operation after the air conditioner is turned on, after the air conditioner has been running continuously for a first set time, obtaining the current indoor ambient temperature of the air conditioner, obtaining the current indoor ambient humidity of the air conditioner, obtaining the current indoor heat exchanger pipe temperature of the air conditioner, and obtaining the set temperature of the air conditioner; and obtaining the current rotation speed of the indoor fan, obtaining the current fixed position of the air guide plate, and obtaining the current wind sweeping angle of the wind sweeping blade; according to the air conditioner The method further comprises the steps of: determining whether the air conditioner needs to enter a preset anti-condensation mode based on the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger tube temperature of the air conditioner; if it is determined that the air conditioner needs to enter the preset anti-condensation mode, controlling the air conditioner to enter the preset anti-condensation mode; correcting the current rotational speed of the indoor fan according to the current fixed position of the air guide plate, the current sweeping angle of the sweeping blade, and the current indoor ambient humidity of the air conditioner to obtain a corrected rotational speed of the indoor fan; and controlling the indoor fan to operate at the corrected rotational speed of the indoor fan; and after a second set time, controlling the air conditioner to exit the preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner and / or the current indoor ambient humidity of the air conditioner.

[0006] In some embodiments, whether the air conditioner needs to enter a preset anti-condensation mode is determined based on the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger tube temperature of the air conditioner, including: determining the target humidity threshold of the air conditioner based on the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger tube temperature of the air conditioner; determining whether the current indoor ambient temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value, and the current indoor ambient humidity of the air conditioner is greater than or equal to the target humidity threshold of the air conditioner; if it is determined that the conditions are met, determining that the air conditioner needs to enter the preset anti-condensation mode.

[0007] In some embodiments, the current rotational speed of the indoor fan is corrected according to the current fixed position of the air guide plate, the current sweeping angle of the sweeping blade, and the current indoor ambient humidity of the air conditioner to obtain the corrected rotational speed of the indoor fan, including: determining a first correction coefficient according to the current fixed position of the air guide plate; determining a second correction coefficient according to the current sweeping angle of the sweeping blade; and using the first correction coefficient and the second correction coefficient as condensation correction coefficients; determining a rotational speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the current rotational speed of the indoor fan; and determining the sum of the current rotational speed of the indoor fan and the rotational speed compensation value of the indoor fan as the corrected rotational speed of the indoor fan.

[0008] In some embodiments, wherein a first correction coefficient is determined based on the current freeze position of the air guide plate, comprising: based on a correspondence between a preset freeze position and a preset correction coefficient, determining the preset correction coefficient corresponding to the preset freeze position that is the same as the current freeze position of the air guide plate in the correspondence as the correction coefficient corresponding to the current freeze position of the air guide plate, as the first correction coefficient; and / or, determining a second correction coefficient based on the current sweep angle of the wind sweep blade, comprising: based on a correspondence between a preset sweep angle and a preset correction coefficient, determining the preset correction coefficient corresponding to the preset sweep angle that is the same as the current sweep angle of the wind sweep blade in the correspondence as the correction coefficient corresponding to the current sweep angle of the wind sweep blade, as the second correction coefficient.

[0009] In some embodiments, determining the speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor environmental humidity of the air conditioner, and the current speed of the indoor fan includes: according to the correspondence between the preset speed and the preset speed coefficient, determining the preset speed coefficient corresponding to the preset speed that is the same as the current speed of the indoor fan in the correspondence as the speed coefficient corresponding to the current speed of the indoor fan as the speed coefficient of the indoor fan; and calculating the speed compensation value of the indoor fan according to the following formula according to the condensation correction coefficient, the current indoor environmental humidity of the air conditioner, and the speed coefficient of the indoor fan:

[0010] △r=(A+B)*K*RH 室内 +C 风档 ;

[0011] Wherein, △r is the speed compensation value of the indoor fan; A+B is the condensation correction coefficient, A is the first correction coefficient, B is the second correction coefficient; K is the preset calculation coefficient; RH 室内 is the current indoor ambient humidity of the air conditioner; C风档 is the speed coefficient of the indoor fan.

[0012] In some embodiments, the air conditioner is controlled to exit a preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner and / or the current indoor ambient humidity of the air conditioner, including: determining whether the current indoor ambient humidity of the air conditioner is less than a target humidity threshold of the air conditioner; if it is determined that the current indoor ambient humidity of the air conditioner is less than the target humidity threshold of the air conditioner, the air conditioner is controlled to exit the preset anti-condensation mode; if it is determined that the current indoor ambient humidity of the air conditioner is not less than the target humidity threshold of the air conditioner, the compressor of the air conditioner is controlled to operate at a reduced frequency until the current indoor ambient temperature of the air conditioner is greater than the sum of the set temperature and the set value of the air conditioner or the current indoor ambient humidity of the air conditioner is less than the target humidity threshold of the air conditioner, and then the air conditioner is controlled to exit the preset anti-condensation mode.

[0013] Matching the above method, the present invention provides a control device for an air conditioner on the other hand, wherein the indoor unit of the air conditioner has an indoor heat exchanger, an indoor fan and an air outlet; the air outlet has an air guide plate and a wind sweeping blade; the air guide plate can be in different fixed positions, and the wind sweeping blade can be in different wind sweeping angles; the control device of the air conditioner comprises: an acquisition unit, configured to, when the air conditioner is in cooling operation after being turned on, obtain the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, the current indoor heat exchanger pipe temperature of the air conditioner, and the set temperature of the air conditioner after the air conditioner has been running continuously for a first set time; and obtain the current speed of the indoor fan, the current fixed position of the air guide plate, and the current wind sweeping angle of the wind sweeping blade; a control unit is configured to, according to the current rotation speed of the air conditioner The front room ambient temperature, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger tube temperature of the air conditioner are used to determine whether the air conditioner needs to enter a preset anti-condensation mode; the control unit is also configured to control the air conditioner to enter the preset anti-condensation mode if it is determined that the air conditioner needs to enter the preset anti-condensation mode; the control unit is also configured to correct the current rotation speed of the indoor fan according to the current fixed position of the air guide plate, the current sweeping angle of the sweeping blade, and the current indoor ambient humidity of the air conditioner to obtain the corrected rotation speed of the indoor fan; and control the indoor fan to operate at the corrected rotation speed of the indoor fan; the control unit is also configured to control the air conditioner to exit the preset anti-condensation mode after a second set time according to the current indoor ambient temperature of the air conditioner and / or the current indoor ambient humidity of the air conditioner.

[0014] In some embodiments, the control unit determines whether the air conditioner needs to enter a preset anti-condensation mode based on the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger tube temperature of the air conditioner, including: determining the target humidity threshold of the air conditioner based on the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger tube temperature of the air conditioner; determining whether the current indoor ambient temperature of the air conditioner is less than or equal to the sum of the set temperature and the set value of the air conditioner, and the current indoor ambient humidity of the air conditioner is greater than or equal to the target humidity threshold of the air conditioner; if it is determined that the conditions are met, determining that the air conditioner needs to enter the preset anti-condensation mode.

[0015] In some embodiments, the control unit corrects the current speed of the indoor fan according to the current fixed position of the air guide plate, the current sweep angle of the sweep blade, and the current indoor ambient humidity of the air conditioner to obtain the corrected speed of the indoor fan, including: determining a first correction coefficient according to the current fixed position of the air guide plate; determining a second correction coefficient according to the current sweep angle of the sweep blade; and using the first correction coefficient and the second correction coefficient as condensation correction coefficients; determining a speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the current speed of the indoor fan; and determining the sum of the current speed of the indoor fan and the speed compensation value of the indoor fan as the corrected speed of the indoor fan.

[0016] In some embodiments, the control unit determines a first correction coefficient based on the current freeze position of the air guide plate, including: based on the correspondence between the preset freeze position and the preset correction coefficient, determining the preset correction coefficient corresponding to the preset freeze position that is the same as the current freeze position of the air guide plate in the correspondence as the correction coefficient corresponding to the current freeze position of the air guide plate, as the first correction coefficient; and / or the control unit determines a second correction coefficient based on the current sweep angle of the wind sweep blade, including: based on the correspondence between the preset sweep angle and the preset correction coefficient, determining the preset correction coefficient corresponding to the preset sweep angle that is the same as the current sweep angle of the wind sweep blade in the correspondence as the correction coefficient corresponding to the current sweep angle of the wind sweep blade, as the second correction coefficient.

[0017] In some embodiments, the control unit determines the speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor environment humidity of the air conditioner, and the current speed of the indoor fan, including: according to the correspondence between the preset speed and the preset speed coefficient, determining the preset speed coefficient corresponding to the preset speed that is the same as the current speed of the indoor fan in the correspondence as the speed coefficient corresponding to the current speed of the indoor fan as the speed coefficient of the indoor fan; according to the condensation correction coefficient, the current indoor environment humidity of the air conditioner, and the speed coefficient of the indoor fan, calculating the speed compensation value of the indoor fan according to the following formula:

[0018] △r=(A+B)*K*RH 室内 +C 风档 ;

[0019] Wherein, △r is the speed compensation value of the indoor fan; A+B is the condensation correction coefficient, A is the first correction coefficient, B is the second correction coefficient; K is the preset calculation coefficient; RH 室内 is the current indoor ambient humidity of the air conditioner; C 风档 is the speed coefficient of the indoor fan.

[0020] In some embodiments, the control unit controls the air conditioner to exit a preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner and / or the current indoor ambient humidity of the air conditioner, including: determining whether the current indoor ambient humidity of the air conditioner is less than a target humidity threshold of the air conditioner; if it is determined that the current indoor ambient humidity of the air conditioner is less than the target humidity threshold of the air conditioner, controlling the air conditioner to exit the preset anti-condensation mode; if it is determined that the current indoor ambient humidity of the air conditioner is not less than the target humidity threshold of the air conditioner, controlling the compressor of the air conditioner to operate at a reduced frequency until the current indoor ambient temperature of the air conditioner is greater than the sum of the set temperature and the set value of the air conditioner or the current indoor ambient humidity of the air conditioner is less than the target humidity threshold of the air conditioner, and then controlling the air conditioner to exit the preset anti-condensation mode.

[0021] Matching the above device, the present invention provides an air conditioner on another aspect, including: the control device of the air conditioner described above.

[0022] Matching the above method, the present invention provides a storage medium on another aspect, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the steps of the air conditioner control method described above.

[0023] Matching the above method, the present invention further provides a computer program product on the other hand, including a computer program, which implements the steps of the above air conditioner control method when executed by a processor.

[0024] Therefore, the solution of the present invention is aimed at the control of air conditioning anti-condensation. When the air conditioning is in cooling operation, the indoor ambient temperature (such as the indoor ambient temperature T 内环 ), indoor heat exchanger tube temperature (such as evaporator temperature T 内管 ), indoor relative humidity (such as indoor relative humidity RH 室内 ) determine the time when the air conditioner enters the anti-condensation mode; after the air conditioner enters the anti-condensation mode, determine the condensation correction coefficient according to the fixed position of the air guide plate of the indoor unit and the angle of the sweeping blade; correct the speed of the indoor fan according to the condensation correction coefficient and the relative humidity of the indoor environment; and determine that the air conditioner exits the anti-condensation mode according to the relative humidity of the indoor environment and / or the indoor environment temperature; thereby, by correcting the speed of the indoor fan according to the fixed position of the air guide plate of the indoor unit and the sweeping angle of the sweeping blade in the anti-condensation mode, condensation can be reduced, indoor comfort can be improved, and user experience can be improved.

[0025] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention.

[0026] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a flow chart of an embodiment of a method for controlling an air conditioner of the present invention;

[0028] Figure 2 A flow chart of an embodiment of the method of the present invention for determining whether the air conditioner needs to enter a preset anti-condensation mode;

[0029] Figure 3 It is a flow chart of an embodiment of correcting the current rotation speed of the indoor fan in the method of the present invention;

[0030] Figure 4 A schematic diagram of a flow chart of an embodiment of determining a rotation speed compensation value of the indoor fan in the method of the present invention;

[0031] Figure 5 A flow chart of an embodiment of controlling the air conditioner to exit a preset anti-condensation mode in the method of the present invention;

[0032] Figure 6 A schematic structural diagram of an embodiment of a control device for an air conditioner of the present invention;

[0033] Figure 7 The figure is a flow chart of an embodiment of a method for controlling condensation prevention of an air conditioner according to the present invention.

[0034] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0035] 102 - acquisition unit; 104 - control unit. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] Considering that when the indoor humidity is high during the cooling operation of the air conditioner, condensation is easy to form on the surface of the indoor heat exchanger, and the condensation water drips onto the ground or blows onto the user, affecting the user experience. The anti-condensation mode control method in the relevant scheme is to achieve the anti-condensation effect by controlling the compressor to reduce the frequency at a specific air outlet angle; however, in actual use, it is not considered that the condensation state is different when the angles of the indoor unit's air guide plate and wind sweeping blade are different.

[0038] The condensation situation varies with the angles of the air guide plate and the sweeping blades of the indoor unit. The air conditioner enters the anti-condensation mode only at a specific air guide plate angle (such as the angle where the condensation phenomenon is most serious), and solves the condensation problem by correcting the compressor frequency and reducing the cooling capacity. However, under harsh working conditions, that is, when the indoor humidity is high, condensation will also occur when the air guide plate is at other angles.

[0039] In addition, the anti-condensation mode in the relevant solutions is achieved by reducing the frequency of the compressor, which is often accompanied by a significant drop in cooling capacity, resulting in a situation where the cooling demand is not met, affecting the user experience.

[0040] It can be seen that the anti-condensation control method of the air conditioner in the relevant scheme does not take into account the influence of different air guide plate positions and sweeping blade angles on the condensation effect of the air conditioner; in addition, the anti-condensation mode in the relevant scheme is achieved by reducing the frequency of the compressor, which is often accompanied by a significant decrease in cooling capacity, resulting in a situation where the cooling demand is not met, affecting the user experience.

[0041] Therefore, the scheme of the present invention proposes a control method for an air conditioner, specifically a control method for preventing condensation of an air conditioner. By correcting the system operating parameters of the air conditioner under different air guide plate positions and wind sweeping blade angles, the anti-condensation function can be achieved while avoiding a significant drop in cooling capacity, thereby improving the user experience.

[0042] According to an embodiment of the present invention, a method for controlling an air conditioner is provided. Figure 1 The indoor unit of the air conditioner has an indoor heat exchanger, an indoor fan and an air outlet; the air outlet has an air guide plate and a wind sweeping blade; the air guide plate can be in different fixed positions, and the wind sweeping blade can be in different wind sweeping angles; in the scheme of the present invention, Figure 1 As shown, the control method of the air conditioner includes: steps S110 to S150.

[0043] At step S110, when the air conditioner is turned on and in cooling operation, after the air conditioner has been running continuously for a first set time, the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, the current indoor heat exchanger pipe temperature of the air conditioner, and the set temperature of the air conditioner are obtained; and the current speed of the indoor fan, the current fixed position of the air guide plate, and the current sweep angle of the sweep blade are obtained; wherein the first set time is such as t1 minutes, and the current indoor ambient temperature of the air conditioner is such as the indoor side ambient temperature T 内环 , the current indoor ambient humidity of the air conditioner such as the indoor relative humidity RH 室内 , the current indoor heat exchanger tube temperature of the air conditioner is such as the evaporator temperature T 内管 The set temperature of the air conditioner is such as the user remote control set value T 遥控 The current speed of the indoor fan is the speed R corresponding to the current wind speed of the indoor fan. 当前风档 .

[0044] In step S120, it is determined whether the air conditioner needs to enter a preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger pipe temperature of the air conditioner.

[0045] At step S130, if it is determined that the air conditioner needs to enter the preset anti-condensation mode, the air conditioner is controlled to enter the preset anti-condensation mode; of course, if it is determined that the air conditioner does not need to enter the preset anti-condensation mode, the air conditioner is controlled to maintain the current operation.

[0046] At step S140, after controlling the air conditioner to execute the preset anti-condensation mode, the current speed of the indoor fan is corrected according to the current fixed position of the air guide plate, the current sweeping angle of the sweeping blade, and the current indoor ambient humidity of the air conditioner to obtain the corrected speed of the indoor fan; and the indoor fan is controlled to operate at the corrected speed of the indoor fan; wherein the corrected speed of the indoor fan is such as the system corrected actual operating speed R.

[0047] At step S150, when the operating stability of the air conditioner reaches a set stability level, after a second set time, the air conditioner is controlled to exit a preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner and / or the current indoor ambient humidity of the air conditioner.

[0048] The solution of the present invention proposes a control scheme for preventing condensation of an air conditioner, which increases the correction of the system operating parameters of the air conditioner under different air guide plate positions and wind sweeping blade angles; at the same time, through relevant control, while realizing the anti-condensation function, the cooling capacity demand is met to avoid a significant drop in cooling capacity.

[0049] In some embodiments, the specific process of determining whether the air conditioner needs to enter a preset anti-condensation mode in step S120 is based on the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger tube temperature of the air conditioner. Please refer to the following exemplary description.

[0050] Combine the following Figure 2 The flowchart of an embodiment of determining whether the air conditioner needs to enter the preset anti-condensation mode in the method of the present invention further illustrates the specific process of determining whether the air conditioner needs to enter the preset anti-condensation mode in step S120, including: steps S210 to S230.

[0051] Step S210, determining the target humidity threshold of the air conditioner according to the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger tube temperature of the air conditioner; wherein the target humidity threshold of the air conditioner is a preset humidity RH 凝露临界 .

[0052] Step S220, determining whether the current indoor ambient temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value, and whether the current indoor ambient humidity of the air conditioner is greater than or equal to the target humidity threshold of the air conditioner.

[0053] Step S230: If it is determined that the conditions are met, it is determined that the air conditioner needs to enter the preset anti-condensation mode; of course, if it is determined that the conditions are not met, it is determined that the air conditioner does not need to enter the preset anti-condensation mode.

[0054] Figure 7 FIG. 2 is a flow chart of an embodiment of a method for controlling condensation prevention of an air conditioner according to the present invention. Figure 7 As shown, the solution of the present invention proposes a method for controlling the anti-condensation of an air conditioner, comprising: step T01, turning on the air conditioner, detecting whether it enters the anti-condensation mode, and then executing step T02.

[0055] Specifically, the air conditioner receives a power-on signal and runs in cooling mode for t1 minutes. Then, the temperature and humidity sensor arranged in the indoor unit detects the current indoor ambient temperature T 内环 , evaporator temperature T 内管 , Indoor relative humidity RH 室内 .

[0056] If the indoor ambient temperature T 内环 ≤ User remote control setting value T 遥控 +0.5℃, indoor relative humidity RH 室内 ≥Preset humidity RH 凝露临界 , it means that the current indoor temperature is close to the user's required value, but the ambient humidity is high, higher than the critical humidity for condensation, and there is a risk of condensation aggravation. The system judges to enter the anti-condensation mode. Among them, the preset humidity RH 凝露临界 In the indoor unit control program, the indoor ambient temperature T 内环 , evaporator temperature T 内管 Calculated.

[0057] In the scheme of the present invention, whether the air conditioner needs to enter the preset anti-condensation mode is determined based on the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger tube temperature of the air conditioner, so as to accurately control the timing of the air conditioner entering the preset anti-condensation mode, which is conducive to improving the timeliness and accuracy of anti-condensation control.

[0058] In some embodiments, in step S140, the current rotation speed of the indoor fan is corrected according to the current fixed position of the air guide plate, the current sweeping angle of the sweeping blade, and the current indoor ambient humidity of the air conditioner. The specific process of obtaining the corrected rotation speed of the indoor fan is shown in the following exemplary description.

[0059] Combine the following Figure 3 The flowchart of an embodiment of correcting the current rotation speed of the indoor fan in the method of the present invention further illustrates the specific process of correcting the current rotation speed of the indoor fan in step S140, including: steps S310 to S330.

[0060] Step S310, determining a first correction coefficient according to the current fixed position of the wind guide plate; determining a second correction coefficient according to the current wind sweeping angle of the wind sweeping blade; and using the first correction coefficient and the second correction coefficient as condensation correction coefficients; wherein the first correction coefficient is such as correction coefficient A, and the second correction coefficient is such as correction coefficient B.

[0061] Step S320, determining a speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the current speed of the indoor fan; wherein the speed compensation value of the indoor fan is such as a speed compensation value △r.

[0062] Step S330: determining the sum of the current rotation speed of the indoor fan and the rotation speed compensation value of the indoor fan as the corrected rotation speed of the indoor fan.

[0063] like Figure 7 As shown, the solution of the present invention provides a method for controlling condensation prevention of an air conditioner, further comprising:

[0064] Step T02, determine the condensation correction coefficient according to different fixed positions of the air guide plate and different angles of the wind sweeping blades, obtain the condensation correction coefficient, and then execute step T03.

[0065] Among them, when the air conditioner is turned off, the air guide plate is closed and this angle is set to 0°. Freeze 1, freeze 2, freeze 3, freeze 4, and freeze 5 represent the air guide plate's rotation angle 1, angle 2, angle 3, angle 4, and angle 5 around the axis, that is, the degree of opening of the air guide plate. The same is true for the sweep blade. When the sweep blade is centered, the angle is set to 0°, and the left and right directions of the air outlet are controlled by rotating around the axis. The corresponding angle values ​​of each freeze position of the air guide plate and the sweep blade are preset in the built-in memory. The user controls the angle of the air guide plate and the sweep blade through the up / down / left / right sweep buttons on the remote control. The air conditioner detects the freeze position selected by the user, and then opens the air guide plate and rotates the sweep blade to the corresponding angle.

[0066] In step T02, the model with both up and down wind sweeping and left and right wind sweeping functions is considered here, and the correction coefficient is determined based on the wind guide plate and the wind sweeping blade angle. However, some models do not have the left and right wind sweeping function, and such models can be determined only based on the wind guide plate angle.

[0067] Step T03: Detect the current operating wind speed of the indoor fan, and determine the indoor fan speed compensation value △r in combination with the indoor ambient temperature and humidity and the condensation correction coefficient.

[0068] The system corrects the actual operating speed R = R 当前风档 +△r, increase the air volume and the air outlet temperature to optimize the condensation situation, and then execute step T04. 当前风档It is the speed corresponding to the current operating wind speed of the indoor fan.

[0069] In the solution of the present invention, the accuracy of anti-condensation control is improved by adding different air guide plate positions and wind sweeping blade angles to correct the system operating parameters; at the same time, through relevant control, the cooling demand is met while realizing the anti-condensation function.

[0070] In some embodiments, in step S310, a first correction coefficient is determined based on the current freeze position of the air guide plate, including: based on the correspondence between the preset freeze position and the preset correction coefficient, the preset correction coefficient corresponding to the preset freeze position that is the same as the current freeze position of the air guide plate in the correspondence is determined as the correction coefficient corresponding to the current freeze position of the air guide plate, as the first correction coefficient.

[0071] like Figure 7 As shown, a control method for preventing condensation of an air conditioner proposed in the solution of the present invention also includes: in step T02, specifically, when the fan speed is the same, the different angles of the air guide plate and the wind sweeping blade will cause different condensation conditions around the air outlet and the air guide plate. When the air conditioner is running, the correction coefficient A is determined by detecting the fixed position of the air guide plate: five correction coefficients A1, A2, A3, A4, and A5 are set according to the different fixed positions of the air guide plate. Depending on the different movement mechanisms of the air guide plate (such as a push-out large air guide plate, a single air guide plate, a double air guide plate, etc.), the corresponding correction coefficient is different. Taking a single air guide plate as an example here, the recommended values ​​of the correction coefficients are shown in Table 1.

[0072] Table 1

[0073]

[0074] In the scheme of the present invention, by adding corrections to the system operating parameters of the air conditioner under different air guide plate positions, the rotation speed of the indoor fan can be controlled so that the cooling capacity demand can be met while the anti-condensation function is realized, thereby avoiding a significant drop in cooling capacity.

[0075] In some embodiments, in step S310, a second correction coefficient is determined based on the current sweep angle of the sweep blade, including: based on the correspondence between the preset sweep angle and the preset correction coefficient, the preset correction coefficient corresponding to the preset sweep angle that is the same as the current sweep angle of the sweep blade in the correspondence is determined as the correction coefficient corresponding to the current sweep angle of the sweep blade, as the second correction coefficient.

[0076] like Figure 7As shown, the control method for preventing condensation of an air conditioner proposed by the solution of the present invention also includes: in step T02, similarly, by detecting the value of the sweeping blade angle, the correction coefficient B is determined. The rotatable angle of the sweeping blade is divided into five areas: the left area (angle 1° to angle 2°) corresponds to the correction coefficient B1, the left middle area (angle 2° to angle 3°) corresponds to the correction coefficient B2, the middle area (angle 3° to angle 4°) corresponds to the correction coefficient B3, the right middle area (angle 4° to angle 5°) corresponds to the correction coefficient B2, and the right area (angle 5° to angle 6°) corresponds to the correction coefficient B1. Generally, the sweeping blade's angle 1° to angle 2° and angle 5° to angle 6°, angle 2° to angle 3° and angle 4° to angle 5° are symmetrical positions, and the sweeping blade with angle 3° to angle 4° is in the middle area. For details, please refer to Table 2.

[0077] Table 2

[0078]

[0079] In the scheme of the present invention, by adding corrections to the system operating parameters of the air conditioner under different sweep blade angles, the rotation speed of the indoor fan can be controlled so that the cooling capacity demand can be met while the anti-condensation function is realized, thereby avoiding a significant drop in cooling capacity.

[0080] In some implementations, the specific process of determining the speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the current speed of the indoor fan in step S320 is described in the following exemplary embodiment.

[0081] Combine the following Figure 4 The flowchart of an embodiment of determining the speed compensation value of the indoor fan in the method of the present invention further illustrates the specific process of determining the speed compensation value of the indoor fan in step S320, including: step S410 to step S420.

[0082] Step S410, based on the correspondence between the preset speed and the preset speed coefficient, the preset speed coefficient corresponding to the preset speed that is the same as the current speed of the indoor fan in the correspondence is determined as the speed coefficient corresponding to the current speed of the indoor fan, as the speed coefficient of the indoor fan.

[0083] Step S420, based on the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the speed coefficient of the indoor fan, the speed compensation value of the indoor fan is calculated according to the following formula:

[0084] △r=(A+B)*K*RH 室内 +C 风档 ;

[0085] in,

[0086] Wherein, △r is the speed compensation value of the indoor fan; A+B is the condensation correction coefficient, A is the first correction coefficient, B is the second correction coefficient; K is the preset calculation coefficient; RH 室内 is the current indoor ambient humidity of the air conditioner; C 风档 is the speed coefficient of the indoor fan.

[0087] like Figure 7 As shown, the solution of the present invention proposes a control method for preventing condensation of an air conditioner, further comprising: in step T03, after confirming the correction coefficient A and the correction coefficient B in step T02, the system performs compensation correction on the speed of the indoor fan. The speed of the indoor fan is compensated by a preset formula such as formula (1), and the air volume is increased, which not only increases the air outlet temperature, improves the condensation situation, but also maintains the stability of the cooling output.

[0088] Speed ​​compensation value △r=(A+B)*K*RH 室内 +C 风档 (1).

[0089] Among them, the K value is a preset parameter based on laboratory tests and is determined by the cooling capacity of the model. The higher the cooling capacity of the unit, the larger the K value. The recommended K value for household 26 and 35 models is 50. In addition, in order to ensure that the noise value during operation meets the national standard requirements, the windshield coefficient C 风档 It is determined according to the current operating wind speed of the indoor fan, which is negatively correlated. The higher the current operating wind speed of the indoor fan, the higher the wind speed coefficient C. 风档 The smaller the value.

[0090] In the scheme of the present invention, by increasing the correction of the system operating parameters of the air conditioner under different air guide plate positions and wind sweeping blade angles, and by controlling the speed of the indoor fan, the cooling capacity demand is met while realizing the anti-condensation function, avoiding a significant drop in cooling capacity.

[0091] In some embodiments, the specific process of controlling the air conditioner to exit the preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner and / or the current indoor ambient humidity of the air conditioner in step S150 is described in the following exemplary embodiments.

[0092] Combine the following Figure 5 The flowchart of an embodiment of controlling the air conditioner to exit the preset anti-condensation mode in the method of the present invention further illustrates the specific process of controlling the air conditioner to exit the preset anti-condensation mode in step S150, including: steps S510 to S530.

[0093] Step S510, determining whether the current indoor humidity of the air conditioner is less than the target humidity threshold of the air conditioner; wherein the target humidity threshold of the air conditioner is a preset humidity RH 凝露临界 .

[0094] Step S520: If it is determined that the current indoor environmental humidity of the air conditioner is less than the target humidity threshold of the air conditioner, the air conditioner is controlled to exit the preset anti-condensation mode.

[0095] Step S530, if it is determined that the current indoor ambient humidity of the air conditioner is not less than the target humidity threshold of the air conditioner, the compressor of the air conditioner is controlled to operate at a reduced frequency until the current indoor ambient temperature of the air conditioner is greater than the sum of the set temperature of the air conditioner and the set value or the current indoor ambient humidity of the air conditioner is less than the target humidity threshold of the air conditioner, and then the air conditioner is controlled to exit the preset anti-condensation mode.

[0096] like Figure 7 As shown, the solution of the present invention proposes a control method for preventing condensation of an air conditioner, which also includes: Step T04: After the system runs stably for t2 minutes, the relative humidity RH inside the room is detected. 室内 , if the indoor relative humidity RH 室内 <Preset humidity RH 凝露临界 , it means that the current condensation condition is good and the system exits the anti-condensation control; if the indoor relative humidity RH 室内 >Preset humidity RH 凝露临界 , it means that the indoor humidity load is heavy or the temperature of the evaporator tube is low, and the temperature of the tube needs to be further increased, thereby increasing the air outlet temperature and reducing condensation. In the cooling mode, the temperature of the tube is increased by reducing the frequency of the compressor. At the same time, in order to ensure that the indoor ambient temperature does not fluctuate greatly, the compressor frequency is reduced at a rate of 1Hz / 180s until the indoor ambient temperature T 内环 >User remote control setting value T 遥控 +0.5℃ or relative humidity RH indoors 室内 <Preset humidity RH 凝露临界 , the system exits the anti-condensation parameter control.

[0097] Some solutions achieve the anti-condensation function by adjusting the movement angle of the air guide plate of the cabinet, focusing on the air guide plate being in motion, that is, in the automatic wind sweeping state; other solutions add an anti-condensation mechanism to achieve the anti-condensation function by changing the wind direction of the cold air. The solution of the present invention considers that when the user sets the air guide plate to freeze, that is, when the air guide plate is in a static state, the condensation situation is different at different freeze positions; and improves the condensation situation by correcting the fan speed; thus, by adding the control logic that prioritizes the correction of the fan speed, the occurrence of insufficient cooling capacity is reduced, and while achieving the anti-condensation function, a significant drop in cooling capacity is avoided, thereby improving the user experience.

[0098] By adopting the technical solution of this embodiment, through the control of air conditioning anti-condensation, when the air conditioning is in cooling operation, according to the indoor ambient temperature (such as the indoor side ambient temperature T 内环 ), indoor heat exchanger tube temperature (such as evaporator temperature T 内管 ), indoor relative humidity (such as indoor relative humidity RH 室内 ) determine the time when the air conditioner enters the anti-condensation mode; after the air conditioner enters the anti-condensation mode, determine the condensation correction coefficient according to the fixed position of the air guide plate of the indoor unit and the angle of the sweeping blade; correct the speed of the indoor fan according to the condensation correction coefficient and the relative humidity of the indoor environment; and determine that the air conditioner exits the anti-condensation mode according to the relative humidity of the indoor environment and / or the indoor environment temperature; thereby, by correcting the speed of the indoor fan according to the fixed position of the air guide plate of the indoor unit and the sweeping angle of the sweeping blade in the anti-condensation mode, condensation can be reduced, indoor comfort can be improved, and user experience can be improved.

[0099] According to an embodiment of the present invention, a control device for an air conditioner corresponding to the control method for the air conditioner is also provided. Figure 7 The structure diagram of an embodiment of the device of the present invention is shown. The indoor unit of the air conditioner has an indoor heat exchanger, an indoor fan and an air outlet; the air outlet has an air guide plate and a wind sweeping blade; the air guide plate can be in different fixed positions, and the wind sweeping blade can be in different wind sweeping angles; in the scheme of the present invention, Figure 7 As shown, the control device of the air conditioner includes: an acquisition unit 102 and a control unit 104.

[0100] Wherein, the acquisition unit 102 is configured to, when the air conditioner is turned on and in cooling operation, obtain the current indoor ambient temperature of the air conditioner, obtain the current indoor ambient humidity of the air conditioner, obtain the current indoor heat exchanger pipe temperature of the air conditioner, and obtain the set temperature of the air conditioner after the air conditioner has been running continuously for a first set time; and obtain the current speed of the indoor fan, obtain the current fixed position of the air guide plate, and obtain the current sweep angle of the sweep blade; wherein the first set time is such as t1 minutes, and the current indoor ambient temperature of the air conditioner is such as the indoor side ambient temperature T 内环 , the current indoor ambient humidity of the air conditioner such as the indoor relative humidity RH 室内 , the current indoor heat exchanger tube temperature of the air conditioner is such as the evaporator temperature T 内管 The set temperature of the air conditioner is such as the user remote control set value T 遥控 The current speed of the indoor fan is the speed R corresponding to the current wind speed of the indoor fan. 当前风档 The specific functions and processing of the acquisition unit 102 refer to step S110.

[0101] The control unit 104 is configured to determine whether the air conditioner needs to enter a preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger pipe temperature of the air conditioner. The specific functions and processing of the control unit 104 refer to step S120.

[0102] The control unit 104 is further configured to control the air conditioner to enter the preset anti-condensation mode if it is determined that the air conditioner needs to enter the preset anti-condensation mode; of course, if it is determined that the air conditioner does not need to enter the preset anti-condensation mode, control the air conditioner to maintain the current operation. The specific functions and processing of the control unit 104 are also shown in step S130.

[0103] The control unit 104 is further configured to, after controlling the air conditioner to execute the preset anti-condensation mode, correct the current speed of the indoor fan according to the current fixed position of the air guide plate, the current sweeping angle of the sweeping blade, and the current indoor ambient humidity of the air conditioner to obtain a corrected speed of the indoor fan; and control the indoor fan to operate at the corrected speed of the indoor fan; wherein the corrected speed of the indoor fan is such as the system corrected actual operating speed R. The specific functions and processing of the control unit 104 are also referred to step S140.

[0104] The control unit 104 is further configured to control the air conditioner to exit the preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner and / or the current indoor ambient humidity of the air conditioner after a second set time when the operation stability of the air conditioner reaches a set stability. The specific functions and processing of the control unit 104 are also shown in step S150.

[0105] The solution of the present invention proposes a control scheme for preventing condensation of an air conditioner, which increases the correction of the system operating parameters of the air conditioner under different air guide plate positions and wind sweeping blade angles; at the same time, through relevant control, while realizing the anti-condensation function, the cooling capacity demand is met to avoid a significant drop in cooling capacity.

[0106] In some implementations, the control unit 104 determines whether the air conditioner needs to enter a preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger pipe temperature of the air conditioner, including:

[0107] The control unit 104 is further configured to determine a target humidity threshold of the air conditioner according to the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger tube temperature of the air conditioner; wherein the target humidity threshold of the air conditioner is a preset humidity RH 凝露临界 The specific functions and processing of the control unit 104 can also be found in step S210.

[0108] The control unit 104 is further configured to determine whether the current indoor ambient temperature of the air conditioner is less than or equal to the sum of the set temperature and the set value of the air conditioner, and the current indoor ambient humidity of the air conditioner is greater than or equal to the target humidity threshold of the air conditioner. The specific functions and processing of the control unit 104 are also referred to step S220.

[0109] The control unit 104 is further configured to determine that the air conditioner needs to enter the preset anti-condensation mode if the condition is satisfied; of course, if the condition is not satisfied, determine that the air conditioner does not need to enter the preset anti-condensation mode. The specific functions and processing of the control unit 104 are also shown in step S230.

[0110] Figure 7 FIG. 1 is a flow chart of an embodiment of a method for controlling condensation prevention of an air conditioner according to the present invention. Figure 7 As shown, the solution of the present invention proposes a control method for preventing condensation of an air conditioner, comprising: step T01, turning on the air conditioner, detecting whether to enter the anti-condensation mode, and then executing step T02.

[0111] Specifically, the air conditioner receives a power-on signal and runs in cooling mode for t1 minutes. Then, the temperature and humidity sensor arranged in the indoor unit detects the current indoor ambient temperature T 内环 , evaporator temperature T 内管 , Indoor relative humidity RH 室内 .

[0112] If the indoor ambient temperature T 内环 ≤ User remote control setting value T 遥控 +0.5℃, indoor relative humidity RH 室内 ≥Preset humidity RH 凝露临界 , it means that the current indoor temperature is close to the user's required value, but the ambient humidity is high, higher than the critical humidity for condensation, and there is a risk of condensation aggravation. The system judges to enter the anti-condensation mode. Among them, the preset humidity RH 凝露临界 In the indoor unit control program, the indoor ambient temperature T 内环 , evaporator temperature T 内管 Calculated.

[0113] In the scheme of the present invention, whether the air conditioner needs to enter the preset anti-condensation mode is determined based on the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger tube temperature of the air conditioner, so as to accurately control the timing of the air conditioner entering the preset anti-condensation mode, which is conducive to improving the timeliness and accuracy of anti-condensation control.

[0114] In some implementations, the control unit 104 corrects the current speed of the indoor fan according to the current fixed position of the air guide plate, the current sweeping angle of the sweeping blade, and the current indoor ambient humidity of the air conditioner to obtain the corrected speed of the indoor fan, including:

[0115] The control unit 104 is further configured to determine a first correction coefficient according to the current fixed position of the wind guide plate; determine a second correction coefficient according to the current wind sweeping angle of the wind sweeping blade; and use the first correction coefficient and the second correction coefficient as condensation correction coefficients; wherein the first correction coefficient is such as correction coefficient A, and the second correction coefficient is such as correction coefficient B. The specific functions and processing of the control unit 104 are also referred to step S310.

[0116] The control unit 104 is further configured to determine the speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the current speed of the indoor fan; wherein the speed compensation value of the indoor fan is such as the speed compensation value △r. The specific functions and processing of the control unit 104 are also referred to step S320.

[0117] The control unit 104 is further configured to determine the sum of the current speed of the indoor fan and the speed compensation value of the indoor fan as the corrected speed of the indoor fan. The specific functions and processing of the control unit 104 are also shown in step S330.

[0118] like Figure 7 As shown, the solution of the present invention provides a method for controlling condensation prevention of an air conditioner, further comprising:

[0119] Step T02, determine the condensation correction coefficient according to different fixed positions of the air guide plate and different angles of the wind sweeping blades, obtain the condensation correction coefficient, and then execute step T03.

[0120] In step T02, the model with both up and down wind sweeping and left and right wind sweeping functions is considered here, and the correction coefficient is determined based on the wind guide plate and the wind sweeping blade angle. However, some models do not have the left and right wind sweeping function, and such models can be determined only based on the wind guide plate angle.

[0121] Step T03: Detect the current operating wind speed of the indoor fan, and determine the indoor fan speed compensation value △r in combination with the indoor ambient temperature and humidity and the condensation correction coefficient.

[0122] The system corrects the actual operating speed R = R 当前风档 +△r, increase the air volume and the air outlet temperature to optimize the condensation situation, and then execute step T04. 当前风档 It is the speed corresponding to the current operating wind speed of the indoor fan.

[0123] In the solution of the present invention, the accuracy of anti-condensation control is improved by adding different air guide plate positions and wind sweeping blade angles to correct the system operating parameters; at the same time, through relevant control, the cooling demand is met while realizing the anti-condensation function.

[0124] In some embodiments, the control unit 104 determines a first correction coefficient based on the current freeze position of the air guide plate, including: the control unit 104 is specifically configured to determine, based on the correspondence between the preset freeze position and the preset correction coefficient, a preset correction coefficient corresponding to the preset freeze position that is the same as the current freeze position of the air guide plate in the correspondence as the correction coefficient corresponding to the current freeze position of the air guide plate, as the first correction coefficient.

[0125] like Figure 7As shown, a control method for preventing condensation of an air conditioner proposed in the solution of the present invention also includes: in step T02, specifically, when the fan speed is the same, the different angles of the air guide plate and the wind sweeping blade will cause different condensation conditions around the air outlet and the air guide plate. When the air conditioner is running, the correction coefficient A is determined by detecting the fixed position of the air guide plate: five correction coefficients A1, A2, A3, A4, and A5 are set according to the different fixed positions of the air guide plate. Depending on the different movement mechanisms of the air guide plate (such as a push-out large air guide plate, a single air guide plate, a double air guide plate, etc.), the corresponding correction coefficient is different. Taking a single air guide plate as an example here, the recommended values ​​of the correction coefficients are shown in Table 1.

[0126] In the scheme of the present invention, by adding corrections to the system operating parameters of the air conditioner under different air guide plate positions, the rotation speed of the indoor fan can be controlled so that the cooling capacity demand can be met while the anti-condensation function is realized, thereby avoiding a significant drop in cooling capacity.

[0127] In some embodiments, the control unit 104 determines a second correction coefficient based on the current sweep angle of the sweep blade, including: the control unit 104 is specifically configured to determine, based on the correspondence between the preset sweep angle and the preset correction coefficient, the preset correction coefficient corresponding to the preset sweep angle that is the same as the current sweep angle of the sweep blade in the correspondence as the correction coefficient corresponding to the current sweep angle of the sweep blade, as the second correction coefficient.

[0128] like Figure 7 As shown, the control method for preventing condensation of an air conditioner proposed by the solution of the present invention also includes: in step T02, similarly, by detecting the value of the sweeping blade angle, the correction coefficient B is determined. The rotatable angle of the sweeping blade is divided into five areas: the left area (angle 1° to angle 2°) corresponds to the correction coefficient B1, the left middle area (angle 2° to angle 3°) corresponds to the correction coefficient B2, the middle area (angle 3° to angle 4°) corresponds to the correction coefficient B3, the right middle area (angle 4° to angle 5°) corresponds to the correction coefficient B2, and the right area (angle 5° to angle 6°) corresponds to the correction coefficient B1. Generally, the sweeping blade's angle 1° to angle 2° and angle 5° to angle 6°, angle 2° to angle 3° and angle 4° to angle 5° are symmetrical positions, and the sweeping blade with angle 3° to angle 4° is in the middle area. For details, please refer to Table 2.

[0129] In the scheme of the present invention, by adding corrections to the system operating parameters of the air conditioner under different sweep blade angles, the rotation speed of the indoor fan can be controlled so that the cooling capacity demand can be met while the anti-condensation function is realized, thereby avoiding a significant drop in cooling capacity.

[0130] In some implementations, the control unit 104 determines the speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the current speed of the indoor fan, including:

[0131] The control unit 104 is further configured to determine, according to the correspondence between the preset speed and the preset speed coefficient, the preset speed coefficient corresponding to the preset speed that is the same as the current speed of the indoor fan in the correspondence as the speed coefficient corresponding to the current speed of the indoor fan, as the speed coefficient of the indoor fan. The specific functions and processing of the control unit 104 are also shown in step S410.

[0132] The control unit 104 is further configured to calculate the speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the speed coefficient of the indoor fan according to the following formula:

[0133] △r=(A+B)*K*RH 室内 +C 风档 ;

[0134] in,

[0135] Wherein, △r is the speed compensation value of the indoor fan; A+B is the condensation correction coefficient, A is the first correction coefficient, B is the second correction coefficient; K is the preset calculation coefficient; RH 室内 is the current indoor ambient humidity of the air conditioner; C 风档 The specific functions and processing of the control unit 104 can also be found in step S420.

[0136] like Figure 7 As shown, the solution of the present invention proposes a control method for preventing condensation of an air conditioner, further comprising: in step T03, after confirming the correction coefficient A and the correction coefficient B in step T02, the system performs compensation correction on the speed of the indoor fan. The speed of the indoor fan is compensated by a preset formula such as formula (1), and the air volume is increased, which not only increases the air outlet temperature, improves the condensation situation, but also maintains the stability of the cooling output.

[0137] Speed ​​compensation value △r=(A+B)*K*RH 室内 +C 风档 (1).

[0138] Among them, the K value is a preset parameter based on laboratory tests and is determined by the cooling capacity of the model. The higher the cooling capacity of the unit, the larger the K value. The recommended K value for household 26 and 35 models is 50. In addition, in order to ensure that the noise value during operation meets the national standard requirements, the windshield coefficient C 风档It is determined according to the current operating wind speed of the indoor fan, which is negatively correlated. The higher the current operating wind speed of the indoor fan, the higher the wind speed coefficient C. 风档 The smaller the value.

[0139] In the scheme of the present invention, by increasing the correction of the system operating parameters of the air conditioner under different air guide plate positions and wind sweeping blade angles, and by controlling the speed of the indoor fan, the cooling capacity demand is met while realizing the anti-condensation function, avoiding a significant drop in cooling capacity.

[0140] In some implementations, the control unit 104 controls the air conditioner to exit the preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner and / or the current indoor ambient humidity of the air conditioner, including:

[0141] The control unit 104 is further configured to determine whether the current indoor humidity of the air conditioner is less than the target humidity threshold of the air conditioner; wherein the target humidity threshold of the air conditioner is a preset humidity RH 凝露临界 The specific functions and processing of the control unit 104 can also be found in step S510.

[0142] The control unit 104 is further configured to control the air conditioner to exit the preset anti-condensation mode if it is determined that the current indoor environmental humidity of the air conditioner is less than the target humidity threshold of the air conditioner. The specific functions and processing of the control unit 104 are also shown in step S520.

[0143] The control unit 104 is further configured to control the compressor of the air conditioner to reduce the frequency of operation if it is determined that the current indoor ambient humidity of the air conditioner is not less than the target humidity threshold of the air conditioner, until the current indoor ambient temperature of the air conditioner is greater than the sum of the set temperature of the air conditioner and the set value or the current indoor ambient humidity of the air conditioner is less than the target humidity threshold of the air conditioner, and then control the air conditioner to exit the preset anti-condensation mode. The specific functions and processing of the control unit 104 are also shown in step S530.

[0144] like Figure 7 As shown, the solution of the present invention proposes a control method for preventing condensation of an air conditioner, which also includes: Step T04: After the system runs stably for t2 minutes, the relative humidity RH inside the room is detected. 室内 , if the indoor relative humidity RH 室内 <Preset humidity RH 凝露临界 , it means that the current condensation condition is good and the system exits the anti-condensation control; if the indoor relative humidity RH 室内 >Preset humidity RH 凝露临界, it means that the indoor humidity load is heavy or the temperature of the evaporator tube is low, and the temperature of the tube needs to be further increased to increase the air outlet temperature and reduce condensation. At the same time, in order to ensure that the indoor ambient temperature does not fluctuate greatly, the compressor frequency is reduced at a rate of 1Hz / 180s until the indoor ambient temperature T 内环 >User remote control setting value T 遥控 +0.5℃ or relative humidity RH indoors 室内 <Preset humidity RH 凝露临界 , the system exits the anti-condensation parameter control.

[0145] Some solutions achieve the anti-condensation function by adjusting the movement angle of the air guide plate of the cabinet, focusing on the air guide plate being in motion, that is, in the automatic wind sweeping state; other solutions add an anti-condensation mechanism to achieve the anti-condensation function by changing the wind direction of the cold air. The solution of the present invention considers that when the user sets the air guide plate to freeze, that is, when the air guide plate is in a static state, the condensation situation is different at different freeze positions; and improves the condensation situation by correcting the fan speed; thus, by adding the control logic that prioritizes the correction of the fan speed, the occurrence of insufficient cooling capacity is reduced, and while achieving the anti-condensation function, a significant drop in cooling capacity is avoided, thereby improving the user experience.

[0146] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0147] According to an embodiment of the present invention, an air conditioner corresponding to the control device of the air conditioner is also provided. The air conditioner may include: the control device of the air conditioner described above.

[0148] Since the processing and functions implemented by the air conditioner of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0149] According to an embodiment of the present invention, a computer program product corresponding to the air conditioner control method is also provided, including a computer program, which implements the steps of the air conditioner control method described above when executed by a processor.

[0150] Since the processing and functions implemented by the product of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0151] According to an embodiment of the present invention, a storage medium corresponding to the air conditioner control method is also provided, the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the steps of the air conditioner control method described above.

[0152] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0153] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0154] The above description is only an 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 substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that: The indoor unit of the air conditioner has an indoor heat exchanger, an indoor fan and an air outlet; the air outlet has an air guide plate and a wind sweeping blade; The wind guide plate can be in different fixed positions, and the wind sweeping blades can be in different wind sweeping angles; The control method of the air conditioner comprises: In the case where the air conditioner is in cooling operation after being turned on, after the air conditioner has been running continuously for a first set time, obtaining the current indoor ambient temperature of the air conditioner, obtaining the current indoor ambient humidity of the air conditioner, obtaining the current indoor heat exchanger pipe temperature of the air conditioner, and obtaining the set temperature of the air conditioner; and obtaining the current rotation speed of the indoor fan, obtaining the current fixed position of the air guide plate, and obtaining the current sweeping angle of the sweeping blade; Determining whether the air conditioner needs to enter a preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger pipe temperature of the air conditioner; If it is determined that the air conditioner needs to enter the preset anti-condensation mode, controlling the air conditioner to enter the preset anti-condensation mode; According to the current fixed position of the air guide plate, the current sweeping angle of the sweeping blade, and the current indoor ambient humidity of the air conditioner, the current rotation speed of the indoor fan is corrected to obtain a corrected rotation speed of the indoor fan; and the indoor fan is controlled to operate at the corrected rotation speed of the indoor fan; After the second set time, the air conditioner is controlled to exit the preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner and / or the current indoor ambient humidity of the air conditioner.

2. The air conditioner control method according to claim 1, characterized in that: Determining whether the air conditioner needs to enter a preset anti-condensation mode according to the current indoor ambient temperature of the air conditioner, the current indoor ambient humidity of the air conditioner, and the current indoor heat exchanger pipe temperature of the air conditioner includes: Determining a target humidity threshold of the air conditioner according to a current indoor ambient temperature of the air conditioner and a current indoor heat exchanger tube temperature of the air conditioner; Determine whether the current indoor ambient temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value, and the current indoor ambient humidity of the air conditioner is greater than or equal to the target humidity threshold of the air conditioner; If it is determined that the conditions are met, it is determined that the air conditioner needs to enter a preset anti-condensation mode.

3. The air conditioner control method according to claim 1 or 2, characterized in that: According to the current fixed position of the air guide plate, the current sweeping angle of the sweeping blade, and the current indoor ambient humidity of the air conditioner, the current rotation speed of the indoor fan is corrected to obtain the corrected rotation speed of the indoor fan, including: Determine a first correction coefficient according to the current fixed position of the wind guide plate; determine a second correction coefficient according to the current wind sweeping angle of the wind sweeping blade; and use the first correction coefficient and the second correction coefficient as condensation correction coefficients; Determining a speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the current speed of the indoor fan; The sum of the current rotation speed of the indoor fan and the rotation speed compensation value of the indoor fan is determined as the corrected rotation speed of the indoor fan.

4. The control method of the air conditioner according to claim 3, characterized in that: in, Determining a first correction coefficient according to the current fixed position of the air guide plate includes: According to the correspondence between the preset frame positions and the preset correction coefficients, the preset correction coefficient corresponding to the preset frame position that is the same as the current frame position of the air guide plate in the correspondence is determined as the correction coefficient corresponding to the current frame position of the air guide plate as the first correction coefficient; and / or, Determining a second correction coefficient according to a current wind sweeping angle of the wind sweeping blade includes: According to the correspondence between the preset sweep angle and the preset correction coefficient, the preset correction coefficient corresponding to the preset sweep angle that is the same as the current sweep angle of the sweep blade in the correspondence is determined as the correction coefficient corresponding to the current sweep angle of the sweep blade, as the second correction coefficient.

5. The air conditioner control method according to claim 3, characterized in that: Determining a speed compensation value of the indoor fan according to the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the current speed of the indoor fan includes: According to the correspondence between the preset speed and the preset speed coefficient, the preset speed coefficient corresponding to the preset speed that is the same as the current speed of the indoor fan in the correspondence is determined as the speed coefficient corresponding to the current speed of the indoor fan, as the speed coefficient of the indoor fan; According to the condensation correction coefficient, the current indoor ambient humidity of the air conditioner, and the speed coefficient of the indoor fan, the speed compensation value of the indoor fan is calculated according to the following formula: △r=(A+B)*K*RH 室内 +C 风档 ; Wherein, △r is the speed compensation value of the indoor fan; A+B is the condensation correction coefficient, A is the first correction coefficient, B is the second correction coefficient; K is the preset calculation coefficient; RH 室内 is the current indoor ambient humidity of the air conditioner; C 风档 is the speed coefficient of the indoor fan.

6. The control method of an air conditioner according to any one of claims 1 to 5, characterized in that: According to the current indoor ambient temperature of the air conditioner and / or the current indoor ambient humidity of the air conditioner, controlling the air conditioner to exit a preset anti-condensation mode includes: Determining whether the current indoor environmental humidity of the air conditioner is less than the target humidity threshold of the air conditioner; If it is determined that the current indoor environmental humidity of the air conditioner is less than the target humidity threshold of the air conditioner, controlling the air conditioner to exit the preset anti-condensation mode; If it is determined that the current indoor ambient humidity of the air conditioner is not lower than the target humidity threshold of the air conditioner, the compressor of the air conditioner is controlled to operate at a reduced frequency until the current indoor ambient temperature of the air conditioner is greater than the sum of the set temperature and the set value of the air conditioner or the current indoor ambient humidity of the air conditioner is lower than the target humidity threshold of the air conditioner, and then the air conditioner is controlled to exit the preset anti-condensation mode.

7. A control device for an air conditioner, characterized in that: The indoor unit of the air conditioner has an indoor heat exchanger, an indoor fan and an air outlet; the air outlet has an air guide plate and a wind sweeping blade; The wind guide plate can be in different fixed positions, and the wind sweeping blades can be in different wind sweeping angles; The control device of the air conditioner comprises: an acquisition unit configured to, when the air conditioner is turned on and in cooling operation, acquire the current indoor ambient temperature of the air conditioner, acquire the current indoor ambient humidity of the air conditioner, acquire the current indoor heat exchanger pipe temperature of the air conditioner, and acquire the set temperature of the air conditioner after the air conditioner has been running continuously for a first set time; and acquire the current rotation speed of the indoor fan, acquire the current fixed position of the air guide plate, and acquire the current sweeping angle of the sweeping blade; A control unit configured to determine whether the air conditioner needs to enter a preset anti-condensation mode according to a current indoor ambient temperature of the air conditioner, a current indoor ambient humidity of the air conditioner, and a current indoor heat exchanger pipe temperature of the air conditioner; The control unit is further configured to control the air conditioner to enter the preset anti-condensation mode if it is determined that the air conditioner needs to enter the preset anti-condensation mode; The control unit is further configured to correct the current rotation speed of the indoor fan according to the current fixed position of the air guide plate, the current sweeping angle of the sweeping blade, and the current indoor ambient humidity of the air conditioner to obtain a corrected rotation speed of the indoor fan; and control the indoor fan to operate at the corrected rotation speed of the indoor fan; The control unit is further configured to control the air conditioner to exit a preset anti-condensation mode according to a current indoor ambient temperature of the air conditioner and / or a current indoor ambient humidity of the air conditioner after a second set time.

8. An air conditioner, characterized in that: include: The control device for an air conditioner as claimed in claim 7.

9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the air conditioner control method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the air conditioner control method according to any one of claims 1 to 6 are implemented.

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