Air conditioner and air outlet control method, device and storage medium thereof

Abstract

The present invention discloses an air conditioner and its air outlet control method, device and storage medium. The method comprises: determining the target air outlet mode of the air conditioner; in the process of the air conditioner switching from the current air outlet mode to the target air outlet mode, if it is determined that the inner air duct has a surge risk, first controlling the speed of the wind wheel to decrease, then switching the swing angle of the swing blade to the target swing angle and / or switching the wind guide angle of the wind guide plate to the target wind guide angle, and then controlling the speed of the wind wheel to switch to the target speed. The air outlet control method according to an embodiment of the present invention can avoid the problem of surge in the process of switching the air outlet mode of the air conditioner, thereby helping to improve user experience and increase product competitiveness.

Description

Technical Field

[0001] The present invention relates to the field of air conditioning, and in particular to an air conditioner and an air outlet control method, device and storage medium thereof. Background Art

[0002] In the related art, the air conditioner is prone to surge problems during the switching of air outlet modes, which causes periodic noise during the operation of the air conditioner and affects the user experience. Summary of the Invention

[0003] The present invention aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, a first object of the present invention is to provide an air outlet control method for an air conditioner, which can avoid the problem of surging when the air conditioner switches the air outlet mode.

[0004] A second object of the present invention is to provide a computer-readable storage medium.

[0005] A third object of the present invention is to provide an air conditioner.

[0006] A fourth object of the present invention is to provide an air outlet control device for an air conditioner.

[0007] To achieve the above-mentioned objectives, a first embodiment of the present invention proposes an air outlet control method for an air conditioner, wherein the air conditioner is limited to an inner air duct, an air guide plate is arranged at the outlet of the inner air duct, a swing blade and a wind wheel are arranged in the inner air duct, and the swing blade is arranged between the wind guide plate and the wind wheel, and the method includes: determining a target air outlet mode of the air conditioner, wherein the air outlet operating parameters corresponding to the target air outlet mode include at least one of a target rotation speed of the wind wheel, a target swing angle of the swing blade and a target wind guide angle of the wind guide plate; in the process of the air conditioner switching from the current air outlet mode to the target air outlet mode, if it is determined that there is a surge risk in the inner air duct, the speed of the wind wheel is first controlled to decrease, and then the swing angle of the swing blade is switched to the target swing angle and / or the wind guide angle of the wind guide plate is switched to the target wind guide angle, and then the speed of the wind wheel is controlled to switch to the target speed.

[0008] According to the air outlet control method of an embodiment of the present invention, when the air conditioner switches the air outlet mode, if there is a surge risk in the inner air duct, the wind wheel is first controlled to reduce the speed, and then the swing angle of the swing blade and the air guide angle of the air guide plate are switched, and then the wind wheel is controlled to increase the speed to the target speed, thereby avoiding the surge problem in the process of switching the air outlet mode of the air conditioner, which is beneficial to improving user experience and increasing product competitiveness.

[0009] According to some embodiments of the present invention, when controlling the rotational speed of the wind wheel to decrease, if there is still a surge risk in the inner air duct, before switching the swing angle of the swing blade to the target swing angle and / or switching the wind guide angle of the wind guide plate to the target wind guide angle, continue to control the rotational speed of the wind wheel to decrease until the rotational speed of the wind wheel decreases to a preset minimum non-surge speed.

[0010] According to some embodiments of the present invention, determining whether the inner air duct has a surge risk includes: determining a surge interval based on the smaller value of the current rotational speed and the target rotational speed of the wind wheel; and determining that the inner air duct has a surge risk when the swing angle of the swing blade and the wind guide angle of the wind guide plate are both in the surge interval.

[0011] Furthermore, in the process of the air conditioner switching from the current air outlet mode to the target air outlet mode, if the swing angle of the pendulum blade and the air guide angle of the air guide plate are not in the surge range, and the target speed is less than the current speed, the speed of the wind wheel is first controlled to switch to the target speed, and then the swing angle of the pendulum blade is switched to the target swing angle and the air guide angle of the air guide plate is switched to the target air guide angle.

[0012] Furthermore, in the process of the air conditioner switching from the current air outlet mode to the target air outlet mode, if the swing angle of the swing blade and the air guide angle of the air guide plate are not in the surge range, and the target speed is greater than the current speed, the swing angle of the swing blade is first controlled to switch to the target swing angle and the air guide angle of the air guide plate is switched to the target air guide angle, and then the speed of the wind wheel is switched to the target speed.

[0013] According to some embodiments of the present invention, during the operation of the air conditioner, the method further includes: detecting the operating power of the wind wheel; when the operating power of the wind wheel fluctuates up and down, reducing the rotation speed of the wind wheel, and / or adjusting the swing angle of the swing blade and / or the wind guide angle of the wind guide plate.

[0014] Furthermore, when the operating power of the wind wheel fluctuates, the rotation speed of the wind wheel is preferentially reduced.

[0015] Furthermore, when the operating power of the wind wheel continues to increase or decrease, the air conditioner is controlled to issue an abnormal prompt message.

[0016] According to some embodiments of the present invention, each rotation speed of the wind wheel corresponds to a surge interval, and the surge interval is determined according to the swing angle of the swing blade and the wind guide angle of the wind guide plate.

[0017] Furthermore, the surge interval is determined according to the following steps: when the wind guide angle θ of the wind guide plate is used as the basis for determination, if the wind guide angle of the wind guide plate is θ t , then the angle at which the blade surges is 0°~α t , and determine the surge interval as [θ t , 0°~α t ]; When the swing angle α of the pendulum blade is used as the basis for determination, if the swing angle of the pendulum blade is α t , then the angle at which the wind deflector plate surges is 0°~θ 1t or 0°~θ 2t , and determine the surge interval as [α t , 0°~θ 1t ] and [α t , 0°~θ 2t ].

[0018] To achieve the above objectives, a second embodiment of the present invention proposes a computer-readable storage medium on which an air outlet control program of an air conditioner is stored. When the air outlet control program of the air conditioner is executed by a processor, the above-mentioned air outlet control method of the air conditioner is implemented.

[0019] According to the computer-readable storage medium of an embodiment of the present invention, through the air outlet control method of the above embodiment, when the air conditioner switches the air outlet mode, if there is a surge risk in the inner air duct, the wind wheel is first controlled to reduce the speed, and then the swing angle of the swing blade and / or the air guide angle of the air guide plate are switched, and then the wind wheel is controlled to increase the speed to the target speed, thereby avoiding the surge problem in the process of switching the air outlet mode of the air conditioner, which is beneficial to improving user experience and increasing product competitiveness.

[0020] To achieve the above-mentioned purpose, the third aspect of the present invention proposes an air conditioner, comprising a memory, a processor, and an air outlet control program of the air conditioner stored in the memory and runnable on the processor. When the processor executes the air outlet control program of the air conditioner, the above-mentioned air outlet control method of the air conditioner is implemented.

[0021] According to the air conditioner of an embodiment of the present invention, through the air outlet control method of the above embodiment, when the air conditioner switches the air outlet mode, if there is a surge risk in the inner air duct, the wind wheel is first controlled to reduce the speed, and then the swing angle of the swing blade and / or the air guide angle of the air guide plate are switched, and then the wind wheel is controlled to increase the speed to the target speed to realize the switching of the air outlet mode of the air conditioner, thereby avoiding the surge problem in the process of switching the air outlet mode of the air conditioner, which is beneficial to improving user experience and increasing product competitiveness.

[0022] To achieve the above-mentioned objectives, a fourth embodiment of the present invention proposes an air outlet control device for an air conditioner, wherein the air conditioner is limited to an inner air duct, an air guide plate is arranged at the outlet of the inner air duct, a swing blade and a wind wheel are arranged in the inner air duct, and the swing blade is arranged between the wind guide plate and the wind wheel, and the device includes: a determination module for determining a target air outlet mode of the air conditioner, wherein the air outlet operation parameters corresponding to the target air outlet mode include at least one of a target rotation speed of the wind wheel, a target swing angle of the swing blade and a target wind guide angle of the wind guide plate; a control module for, during the process of the air conditioner switching from the current air outlet mode to the target air outlet mode, if it is determined that there is a surge risk in the inner air duct, first controlling the rotation speed of the wind wheel to decrease, then switching the swing angle of the swing blade to the target swing angle and / or switching the wind guide angle of the wind guide plate to the target wind guide angle, and then controlling the rotation speed of the wind wheel to switch to the target rotation speed.

[0023] According to the air outlet control device of the air conditioner according to an embodiment of the present invention, when the air conditioner switches the air outlet mode, if the control module determines that there is a surge risk in the internal air duct, it first controls the wind wheel to reduce the speed, then switches the swing angle of the swing blade and / or the air guide angle of the air guide plate, and finally controls the wind wheel to increase the speed to the target speed, thereby avoiding the surge problem in the process of switching the air outlet mode of the air conditioner, which is beneficial to improving user experience and increasing product competitiveness.

[0024] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural diagram of an air conditioner according to an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of the swinging of an air deflector according to one embodiment of the present invention;

[0027] Figure 3 Schematic diagram of a swing blade according to an embodiment of the present invention.

[0028] Figure 4 is a schematic diagram of an air conditioner in a windless state according to one embodiment of the present invention;

[0029] Figure 5 FIG. 1 is a schematic diagram of an air conditioner at a maximum air supply angle according to an embodiment of the present invention.

[0030] Figure 6 is a schematic diagram of a surge angle of a swing blade according to an embodiment of the present invention;

[0031] Figure 7 FIG. 1 is a schematic diagram of a surge angle of an air guide plate according to an embodiment of the present invention.

[0032] Figure 8 is another schematic diagram of a surge angle of an air deflector according to an embodiment of the present invention;

[0033] Figure 9 FIG. 4 is a flow chart of an air outlet control method for an air conditioner according to an embodiment of the present invention.

[0034] Figure 10 is a flow chart of a method for determining surge of an air conditioner according to one embodiment of the present invention;

[0035] Figure 11 FIG. 4 is a flow chart of a method for starting an air conditioner according to an embodiment of the present invention.

[0036] Figure 12 is a flow chart of an air outlet control method for an air conditioner according to another embodiment of the present invention;

[0037] Figure 13 is a flow chart of an air outlet control method for an air conditioner according to another embodiment of the present invention;

[0038] Figure 14 is a flow chart of an air outlet control method for an air conditioner according to yet another embodiment of the present invention;

[0039] Figure 15 FIG. 4 is a block diagram of an air outlet control device for an air conditioner according to an embodiment of the present invention.

[0040] Reference numerals:

[0041] Air conditioner 10, inner air duct 101, air guide plate 102, swing blade 103, wind wheel 104, front volute tongue 105, PTC heater 106, evaporator 107, air inlet 108, protective net 109;

[0042] Air outlet control device 100, determination module 1, control module 2. DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. It should be noted that the embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0044] The air outlet control method of an air conditioner according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] Reference Figures 1-8As shown, the air conditioner 10 according to an embodiment of the present invention includes: an inner air duct 101, an air guide plate 102, a swing blade 103, a wind wheel 104, a front volute tongue 105, a PTC heater 106, an evaporator 107, an air inlet 108 and a protective net 109.

[0046] Among them, the air conditioner 10 can define an inner air duct 101. The air conditioner 10 can be the inner unit of a split-type air conditioner or an integrated air conditioner. The inner air duct 101 can be the outlet air duct of the air conditioner 10. In addition, in terms of the air duct type, the inner air duct 101 can be a cross-flow air duct, an axial flow air duct, etc. An air guide plate 102 is provided at the outlet of the inner air duct 101. The air guide plate 102 can swing in the up and down directions to change the air outlet direction of the air conditioner 10. A swing blade 103 and a wind wheel 104 are provided in the inner air duct 101. The swing blade 103 is provided between the wind guide plate 102 and the wind wheel 104. That is to say, in the flow direction of the air flow in the inner air duct 101, the swing blade 103 is located upstream of the wind guide plate 102. The wind wheel 104 can be used to provide wind pressure to form airflow. After the air flow enters the air conditioner 10 through the air inlet 108, heat exchange can be performed at the PTC heater 106 or the evaporator 107. PTC (Positive Temperature Coefficient) The heater (positive temperature coefficient) can be used to heat the air flow to achieve the heating function of the air conditioner 10, and the evaporator 107 can be used to cool the air flow to achieve the cooling function of the air conditioner 10.

[0047] The impeller 104 can be an outlet impeller and can be connected to the inner air duct 101 via a front volute 105 to ensure the air outlet effect of the impeller 104. The swing blade 103 can swing left and right to guide the air. A protective net 109 is provided on the outside of the swing blade 103 to protect the swing blade 103 and can also hide the swing blade 103, thereby improving the appearance of the air conditioner 10.

[0048] Reference Figure 3-Figure 6 As shown, the blade 103 may be provided with a plurality of ventilation holes to form a windless blade. When the blade 103 swings to a direction perpendicular to the direction of the airflow passing through it (such as Figure 4 As shown), the resistance of the air flow through the ventilation holes on the swing blade 103 can be used to reduce the speed of the air flow, thereby achieving a windless effect. At the same time, since the swing blade 103 is located on the inner side of the inner air duct 101, the influence of the ventilation holes on the swing blade 103 on the aesthetics of the air conditioner 10 can be reduced.

[0049] Reference Figure 1 and Figure 2 As shown, the air guide plate 102 can swing in the up and down directions. The air guide plate 102 has a closed state that closes the outlet of the inner air duct 101. In the closed state, its swing angle is 0°, and it can swing upward at an angle of 0°~θ1 and downward at an angle of 0°~θ2.

[0050] Reference Figure 3-Figure 6 As shown, the swing angle α of the swing blade 103 is 0° to 180° or 0° to 90°, wherein when the swing angle of the swing blade 103 is 0°, the swing blade 103 swings to a direction perpendicular to the direction of the airflow passing through it (such as Figure 4 As shown), at this time, the air conditioner 10 is in a windless state, and the swing blade 103 swings at an angle of 90° (as shown Figure 5 ), corresponding to the maximum air supply angle of the air conditioner 10.

[0051] Figure 9 FIG. 1 is a flow chart of an air outlet control method for an air conditioner according to an embodiment of the present invention, wherein the method includes:

[0052] Step S1, determining a target air outlet mode of the air conditioner, wherein the air outlet operating parameters corresponding to the target air outlet mode include at least one of a target rotation speed of the wind wheel, a target swing angle of the swing blade, and a target air guide angle of the air guide plate.

[0053] Among them, the wind guide plate changes its air guide angle and the swing blade changes its swing angle, which will change the resistance of the inner air duct. The wind wheel changes its speed, which will change the wind pressure in the inner air duct. When the air volume is large, the wind pressure provided by the wind wheel cannot offset the resistance of the heat exchanger, swing blades, etc. in the inner air duct, which may cause the air flow to flow unevenly near the blades of the wind wheel, and then cause surge problems.

[0054] It should be noted that surge can be a process in which the wind wheel stalls and backflows near its blades due to a sudden increase in the inlet and outlet or internal resistance of the inner air duct during operation, thereby generating periodic noise. It can be understood that surge is mainly related to the resistance of the inner air duct and the pressure resistance of the wind wheel itself.

[0055] Step S2, during the process of the air conditioner switching from the current air outlet mode to the target air outlet mode, if it is determined that there is a surge risk in the internal air duct, the wind wheel speed is first controlled to decrease, and then the swing angle of the swing blade is switched to the target swing angle and / or the air guide angle of the air guide plate is switched to the target air guide angle, and then the wind wheel speed is controlled to switch to the target speed.

[0056] In one embodiment of the present invention, when the air conditioner switches the air outlet mode, if there is a surge risk, the speed of the wind wheel is first reduced, and then the swing blades are adjusted to an angle corresponding to the target air outlet mode, and then the speed of the wind wheel is adjusted to a speed corresponding to the target air outlet mode, and finally the air guide plate is adjusted to an angle corresponding to the target air outlet mode to ensure that there is no surge risk during the adjustment process.

[0057] In another embodiment of the present invention, if there is a surge risk during the process of switching the air outlet mode of the air conditioner, the speed of the wind wheel is first reduced, and then the air guide plate is adjusted to the angle corresponding to the target air outlet mode, and then the speed of the wind wheel is adjusted to the speed corresponding to the target air outlet mode, and finally the swing blade is adjusted to the angle corresponding to the target air outlet mode to ensure that there is no surge risk during the adjustment process.

[0058] In another embodiment of the present invention, if there is a surge risk when the air conditioner switches the air outlet mode, the speed of the wind wheel is first reduced, and then the swing blades and the air guide plate are adjusted to the angle corresponding to the target air outlet mode, and finally the speed of the wind wheel is adjusted to the speed corresponding to the target air outlet mode to ensure that there is no surge risk during the adjustment process.

[0059] According to the air outlet control method of an embodiment of the present invention, when the air conditioner switches the air outlet mode, if there is a surge risk in the inner air duct, the wind wheel is first controlled to reduce the speed, and then the swing angle of the swing blade and / or the air guide angle of the air guide plate are switched, and then the wind wheel is controlled to increase the speed to the target speed, thereby avoiding the surge problem in the process of switching the air outlet mode of the air conditioner, which is beneficial to improving user experience and increasing product competitiveness.

[0060] In some embodiments of the present invention, when controlling the speed of the wind wheel to decrease, if there is still a surge risk in the inner air duct, the speed of the wind wheel is continued to be controlled to decrease before the swing angle of the swing blade is switched to the target swing angle and / or the wind guide angle of the wind guide plate is switched to the target wind guide angle until the speed of the wind wheel is reduced to a preset minimum non-surge speed.

[0061] In some embodiments of the present invention, a plurality of reduction gears may be provided in the process of controlling the rotational speed of the wind rotor to reduce, so as to gradually reduce the rotational speed of the wind rotor until it is reduced to a minimum non-surge rotational speed.

[0062] For example, the preset minimum non-surge speed is 200r / min, when the speed of the front wind wheel is 600r / min and the target speed is 1000 / min, if it is determined that there is a surge risk during the air outlet mode switching process, the speed of the front wind wheel is reduced to 400r / min. If there is still a surge risk in the inner air duct, the speed of the wind wheel is continued to be controlled to be reduced to 200r / min, and then the swing angle of the swing blade is switched to the target swing angle and / or the wind guide angle of the wind guide plate is switched to the target wind guide angle, and then the speed of the wind wheel is controlled to be switched to 1000 / min.

[0063] It should be noted that the preset minimum surge-free speed can be the maximum speed of the wind wheel at which no surge occurs when the air conditioner switches to any air outlet mode, and the swing angle of the swing blade is at any angle between the current swing angle and the target swing angle, and the air guide angle of the air guide plate is at any angle between the current air guide angle and the target air guide angle, so as to reduce the impact of the air outlet mode switching on the wind wheel speed while ensuring that no surge occurs.

[0064] In some embodiments of the present invention, determining whether the inner air duct has a surge risk may include: determining a surge interval based on the smaller value of the current rotational speed of the wind rotor and the target rotational speed; determining whether the inner air duct has a surge risk when the swing angle of the swing blade and the wind guide angle of the wind guide plate are both in the surge interval. The surge interval may include a first surge interval and a second surge interval. Specifically, when the target rotational speed is less than the current rotational speed, the first surge interval is determined based on the target rotational speed. That is, the rotational speed of the target air outlet mode is first compared with the rotational speed of the front air outlet mode. If the rotational speed is lower, the first surge interval is determined based on the target rotational speed of the lower speed, thereby avoiding the problem of surge during the process of switching from the current air outlet mode to the target air outlet mode.

[0065] During the process of the swing blade switching from the current swing angle to the target swing angle, and the process of the air guide plate switching from the current air guide angle to the target air guide angle, if the swing blade swing angle and the air guide plate air guide angle are within the first surge range, it can be determined that there is a risk of surge in the inner air duct. The first surge range can be the swing blade swing angle range and the air guide plate air guide angle range corresponding to when the wind rotor surges at the target speed.

[0066] It should be noted that the rotational speed of the wind wheel is positively correlated with the size (range) of the swing angle range of the swing blade corresponding to the surge in the first surge interval, and the rotational speed of the wind wheel is positively correlated with the size (range) of the guide angle range of the wind guide plate corresponding to the surge in the first surge interval. That is to say, the smaller the rotational speed of the wind wheel, the smaller the swing angle range of the swing blade corresponding to the surge (the larger the swing angle range of the swing blade), and the smaller the guide angle range of the wind guide plate corresponding to the surge (the larger the swing angle range of the wind guide plate). Therefore, when the air outlet mode is switched, when the target speed is lower than the current speed, the first surge interval is determined by the target speed to minimize the size of the first surge interval as much as possible, which is conducive to reducing the probability of determining that there is a surge risk, and then in the process of switching the air outlet mode, it is conducive to reducing the number of times the wind wheel is reduced to the preset minimum non-surge speed to ensure user experience.

[0067] In some embodiments of the present invention, during the process of switching the pendulum blade from the current swing angle to the target swing angle, and during the process of switching the air guide plate from the current air guide angle to the target air guide angle, if the swing angle of the pendulum blade and the air guide angle of the air guide plate are not in the first surge interval, it is determined that there is no surge risk in the inner air duct, and the wind wheel can be controlled to switch from the current speed to the target speed first, and then the swing angle of the pendulum blade can be switched to the target swing angle, and the air guide angle of the air guide plate can be switched to the target air guide angle, so as to avoid the surge problem during the process of the air conditioner switching the air outlet mode.

[0068] It should be noted that, when the guide angle of the air guide plate and the swing angle of the pendulum blade remain unchanged, reducing the speed of the wind wheel will not cause surge problems. Therefore, when the target speed is less than the current speed, and the swing angle of the pendulum blade and the guide angle of the air guide plate are not in the first surge interval determined according to the target speed, the switching process of the air conditioner's air outlet mode is divided into two sections. The first section: keep the guide angle of the air guide plate and the swing angle of the pendulum blade unchanged, and reduce the speed of the wind wheel to the target speed. The second section: keep the speed of the wind wheel at the target speed, adjust the angles of the pendulum blade and the air guide plate, so that the pendulum blade switches to the target swing angle and the air guide plate switches to the target guide angle. Both of the above control processes will not cause surge, so as to avoid the problem of surge in the process of switching the air outlet mode of the air conditioner.

[0069] When the target speed is greater than the current speed, the second surge interval is determined according to the current speed. That is, the speed of the target air outlet mode is first compared with the speed of the previous air outlet mode. If the speed increases, the second surge interval is determined according to the current speed of the low speed, thereby avoiding the surge problem in the process of switching from the current air outlet mode to the target air outlet mode.

[0070] During the process of the swing blade switching from the current swing angle to the target swing angle, and the process of the air guide plate switching from the current air guide angle to the target air guide angle, if the swing blade swing angle and the air guide plate air guide angle are within the second surge range, it can be determined that there is a risk of surge in the inner air duct. The second surge range can be the swing blade swing angle range and the air guide plate air guide angle range corresponding to when the wind rotor surges at the current speed.

[0071] It should be noted that the rotational speed of the wind wheel is positively correlated with the size (range) of the swing angle range of the swing blade corresponding to the surge in the second surge interval, and the rotational speed of the wind wheel is positively correlated with the size (range) of the guide angle range of the wind guide plate corresponding to the surge in the second surge interval. That is to say, the smaller the rotational speed of the wind wheel, the smaller the swing angle range of the swing blade corresponding to the surge (the larger the swing angle range of the swing blade), and the smaller the guide angle range of the wind guide plate corresponding to the surge (the larger the swing angle range of the wind guide plate). Therefore, in the process of switching the air outlet mode, if the target speed is greater than the current speed, the second surge interval is determined by the current speed to minimize the size of the second surge interval as much as possible, which is conducive to reducing the probability of determining that there is a surge risk, and further, in the process of switching the air outlet mode, it is conducive to reducing the number of times the wind wheel is reduced to the preset minimum non-surge speed to ensure user experience.

[0072] In some embodiments of the present invention, during the process of switching the pendulum blade from the current swing angle to the target swing angle, and during the process of switching the air guide plate from the current air guide angle to the target air guide angle, if the pendulum blade swing angle and the air guide plate air guide angle are not in the second surge interval, it can be determined that there is no risk of surge in the inner air duct, and the pendulum blade swing angle can be switched to the target swing angle, and the air guide plate air guide angle can be switched to the target air guide angle first, and then the wind wheel can be controlled to switch from the current speed to the target speed, so as to avoid the surge problem in the process of the air conditioner switching the air outlet mode.

[0073] It should be noted that the air conditioner can be debugged before leaving the factory to ensure that no surge occurs when the air conditioner is in any specific air outlet mode. Therefore, when the guide plate air guide angle and the swing blade swing angle remain unchanged, the air outlet mode with a low wind rotor speed is increased to any high wind rotor speed air outlet mode without causing surge problems. Therefore, when the target speed is greater than the current speed, and the swing blade swing angle and the guide plate air guide angle are not in the second surge interval determined according to the current speed, the air conditioner air outlet mode switching process is divided into two stages. The first stage: maintain the wind rotor speed at the current speed, adjust the swing blade and the guide plate angle, so that the swing blade switches to the target swing angle and the guide plate switches to the target air guide angle. The second stage: maintain the guide plate air guide angle and the swing blade swing angle unchanged, and increase the wind rotor speed to the target speed. Both of the above control processes will not cause surge, so as to avoid the problem of surge occurring when the air conditioner switches the air outlet mode.

[0074] In some embodiments of the present invention, during operation of the air conditioner, the air outlet control method of the air conditioner further includes:

[0075] The operating power of the wind wheel is continuously detected. When the value of the operating power of the wind wheel fluctuates up and down, it can be determined that the inner air duct has a surge risk, so that the rotation speed of the wind wheel can be reduced, and / or the swing angle of the wind-free pendulum and / or the wind guide angle of the wind guide plate are adjusted. When the wind guide angle of the wind guide plate and the swing angle of the swing blade are manually changed by the user, which affects the resistance of the inner air duct, it is judged whether the inner air duct has surged by the fluctuation of the operating power of the wind wheel, and at least one of the rotation speed of the wind wheel, the wind guide angle of the wind guide plate and the swing angle of the swing blade is adjusted to avoid the occurrence of surge. At the same time, the user can be prompted to switch to the air outlet mode corresponding to the wind guide angle of the wind guide plate changed by the user.

[0076] In some embodiments of the present invention, when the operating power of the wind wheel fluctuates, the rotation speed of the wind wheel is preferentially reduced. It is understandable that when the swing angle of the pendulum blade is manually changed by the user and the value of the wind wheel operating power fluctuates, it indicates that the user requires the air conditioner to maintain the changed pendulum blade angle. At this time, in order to avoid the problem of surge, the rotation speed of the wind wheel can be preferentially reduced while keeping the pendulum blade angle unchanged, so as to meet the user's demand for the air outlet direction of the air conditioner. In some embodiments of the present invention, when the wind wheel is continuously operated at the current rotation speed, if the operating power of the wind wheel continues to decrease or increase, it indicates that the wind wheel is operating abnormally, and the fault indicator light and other prompting devices of the air conditioner can be controlled to issue an abnormal prompt information to realize the error reporting function, thereby prompting the user that the wind wheel has an abnormal operation.

[0077] In some embodiments of the present invention, each rotational speed of the wind rotor corresponds to a surge interval, and the surge interval is determined based on the guide angle of the wind deflector and the swing angle of the swing blade. It is understood that when the wind rotor operates at a constant rotational speed, resulting in a surge phenomenon in the wind rotor, all angles corresponding to the wind deflector and the swing blade constitute the surge interval. Therefore, if the guide angle of the wind deflector and the swing angle of the swing blade are within the surge interval corresponding to the current wind rotor rotational speed, the inner air duct is determined to have a surge risk. If the guide angle of the wind deflector and the swing angle of the swing blade are not within the surge interval corresponding to the current wind rotor rotational speed, the inner air duct is determined to have no surge risk.

[0078] In some embodiments of the present invention, the surge interval can be calibrated using an exhaustive method to find the surge interval corresponding to each speed. In some embodiments, in all air delivery modes of the air conditioner, the fan has N speed changes. While maintaining the fan at the nth (n≤N, and n is a positive integer) speed, the air guide plate and the swing blade are adjusted sequentially so that the air guide plate swings within the swingable angle range. At the same time, when each air guide plate is at any swing angle, the swing blade swings within the swingable angle range, thereby finding the surge interval corresponding to each speed. The swing angle accuracy of the air guide plate and the swing blade can be the minimum rotation amount of the motor driving them.

[0079] It should be noted that the surge interval varies with the internal air duct and the speed of the wind wheel. The better the internal air duct, the lower the wind wheel speed and the smaller the surge interval. When the air duct is good enough and / or the wind wheel speed is low enough, the surge interval may not exist. In other words, at this time, when the swing angle of the pendulum blade and the wind guide angle of the air guide plate are at any value, surge will not occur in the internal air duct. However, since the current trend of air conditioners is large air volume, it is difficult to eradicate surge with built-in pendulum blades under large air volume, and there is a high probability that surge will occur during operation. The present invention can be used to address the surge situation that has already occurred in current products, as well as air conditioners that are very likely to experience surge in the future.

[0080] In some embodiments of the present invention, reference Figure 2 、 Figure 6-Figure 8 As shown in Figure 2, the surge range is determined according to the following steps:

[0081] When the wind deflector angle θ is used as the basis for judgment, if the wind deflector angle is θ t , then the corresponding blade surge angle is 0°~α t , so as to determine the surge range is [θ t , 0°~α t ], where the wind guide angle θ of the wind guide plate t When the change occurs, the corresponding blade surge angle may also change accordingly. The corresponding blade surge angle may be calibrated by experiment and stored in the air conditioner. That is to say, each speed of the wind wheel corresponds to a surge interval. When the wind wheel speed is determined, the judgment basis may be the guide angle θ. According to the blade surge angle 0°~α corresponding to the guide angle θ, t , to determine whether the swing angle of the swing blade and the air guide angle of the air guide plate are in the surge range. If so, it is determined that the inner air duct has a surge risk.

[0082] When the swing angle α of the pendulum blade is used as the basis for judgment, if the swing angle of the pendulum blade is α t , then the angle at which the wind deflector plate surges is 0°~θ 1t Or 0°~θ 2t , so as to determine the surge range is [α t , 0°~θ 1t ] and [α t , 0°~θ 2t ], wherein, when the swing blade swing angle α changes, the corresponding wind guide plate surge angle may also change accordingly. The wind guide plate surge angle may be calibrated by experiment and stored in the air conditioner. That is to say, each speed of the wind wheel corresponds to a surge interval. When the wind wheel speed is determined, the judgment basis may be the swing blade swing angle α. According to the wind guide plate surge angle 0°~θ corresponding to the swing blade swing angle α, 1tor 0°~θ 2t , to determine whether the swing angle of the swing blade and the air guide angle of the air guide plate are in the surge range. If so, it is determined that there is a surge risk in the inner air duct.

[0083] In some embodiments of the present invention, during the process of switching the air conditioner from the current air outlet mode to the target air outlet mode, in order to avoid surge in the inner air duct and reduce the complexity of the air conditioner control process, each time the air conditioner switches to the target air outlet mode, the fan rotor may be first controlled to decrease to a minimum non-surge speed, then the swing blades and air guide plates may be controlled to switch to a target angle, and finally the fan rotor speed may be controlled to switch to the target speed. It is understood that when the fan rotor is reduced to the minimum non-surge speed, the inner air duct will not surge even if the swing blades and air guide plates swing to any angle.

[0084] In some embodiments of the present invention, during the process of switching the air conditioner from the current air outlet mode to the target air outlet mode, in order to avoid surging in the internal air duct and reduce the complexity of the control process of the air conditioner, each time the air conditioner switches to the target air outlet mode, if it is necessary to adjust the angle of the swing blade, the air guide plate will first move up or down to the maximum swing angle, and then the swing blade will be adjusted to the target swing angle and the air guide plate will be adjusted to the target air guide angle in turn.

[0085] If the angle of the air guide plate needs to be adjusted, first swing the blade to the maximum air supply angle of 90°, and then adjust the air guide plate to the target air guide angle and the swing blade to the target swing angle in sequence.

[0086] Figure 10 FIG. 1 is a flow chart of a method for determining surge of an air conditioner according to an embodiment of the present invention, wherein the method for determining surge includes:

[0087] Step S11: Real-time monitoring of the wind wheel speed n m and power P m .

[0088] Step S12, same speed n m Under the record power P m , and the power P at the next moment m+1 、P m+2 …P m+i .

[0089] Step S13, determine P m+1 / P m ≥1.1 or P m+1 / P m ≤0.9, if yes, execute step S14, if no, return to step S11.

[0090] Step S14, record K1=P m+1 / P m K2=P m+2 / P m+1 …K i =P m+i / P m+i-1 .

[0091] Step S15, determining whether K is greater than or equal to 1.1 or less than or equal to 0.9 during the monitoring period, if yes, executing step S16, if not, executing step S17.

[0092] Step S16: Report an error and prompt the user that the operation is abnormal.

[0093] In step S17, the power of the wind wheel fluctuates up and down, and it is determined that surge occurs.

[0094] According to an embodiment of the present invention, a method for determining surge of an air conditioner adopts a dynamic surge determination mode. When the power of the wind wheel suddenly increases or decreases while the wind wheel speed remains unchanged, the surge determination mode is entered. The power change is then analyzed. When the power fluctuates and meets preset conditions, surge is determined to have occurred. When the power continues to increase or decrease, an abnormality is determined to have occurred, and the user is prompted.

[0095] Figure 11 FIG. 1 is a flow chart of a method for starting an air conditioner according to an embodiment of the present invention, wherein the method for starting an air conditioner includes:

[0096] Step S21: receiving a power-on command and opening the air guide plate and the swing blade to the maximum opening.

[0097] Step S22 : determining a target swing angle of the blades and a target air guide angle of the air guide plate according to the target air outlet mode selected by the user.

[0098] Step S23: Adjust the swing blades and the air guide plate to the target position.

[0099] Step S24, turn on the wind wheel and the whole machine starts running.

[0100] According to the method for starting up the air conditioner in the embodiment of the present invention, the swing blades and the air guide plate are first adjusted to the target positions, and then the fan wheel is turned on, which can prevent the air conditioner from surging during the startup process.

[0101] Figure 12 FIG. 1 is a flow chart of an air outlet control method for an air conditioner according to another embodiment of the present invention, wherein the method includes:

[0102] Step S31: The air conditioner operates normally.

[0103] Step S32: The user chooses to switch to the target air outlet mode.

[0104] Step S33, determining the change in the rotational speed of the wind wheel after switching to the wind outlet mode, if the rotational speed decreases, executing step S34, if the rotational speed increases, executing step S37.

[0105] Step S34, determining whether there is a surge risk, if there is a risk, executing step S35, if there is no risk, executing step S36.

[0106] Among them, the surge risk is judged based on the target speed of the wind wheel, the target swing angle of the swing blade, and the target wind guide angle of the wind guide plate. That is, the first surge interval is determined according to the target speed, and it is calculated whether the swing angle of the swing blade and the wind guide angle of the wind guide plate are in the first surge interval during the mode switching process. If so, there is a risk, otherwise there is no risk.

[0107] Step S35: reduce the rotor speed to the minimum non-surge speed, and then increase the speed after the wind guide plate and the swing blade are switched to the target angle.

[0108] Step S36: reduce the wind wheel speed to the target speed, and then switch the wind guide plate and the swing blade to the target angle.

[0109] Step S37, determine whether there is a surge risk, if there is a risk, execute step S38, if there is no risk, execute step S39.

[0110] Among them, the surge risk is judged based on the current speed of the wind wheel, the target swing angle of the swing blade and the target wind guide angle of the wind guide plate, that is, the first surge interval is determined according to the current speed, and it is calculated whether the swing angle of the swing blade and the wind guide angle of the wind guide plate are in the first surge interval during the mode switching process. If so, there is a risk, if not, there is no risk.

[0111] Step S38: Reduce the rotor speed to the minimum non-surge speed, and then increase the speed after the wind guide plate and the swing blade are switched to the target angle.

[0112] Step S39: switch the wind guide plate and the swing blade to the target angle, and then increase the wind wheel speed to the target speed.

[0113] According to the air outlet control method of an embodiment of the present invention, during the process of switching the air outlet mode of the air conditioner, if the switching of the working mode requires reducing the speed, the speed is first reduced and then the air guide plate and the swing blade are adjusted, that is, the speed is first reduced and then the angle interval of the air guide plate and the swing blade path after the speed reduction is calculated to see whether there is a surge risk. If not, the air conditioner is switched directly. If so, the speed is further reduced and then the air guide plate and the swing blade are switched to the target working position before returning to the normal speed. If the switching of the working mode requires increasing the speed, the air guide plate and the swing blade are first adjusted and then the speed is increased. That is, the speed is first calculated and then the angle interval of the air guide plate and the swing blade path after the speed reduction is calculated to see whether there is a surge risk. If not, the air conditioner is switched directly. If so, the speed is reduced and then the air guide plate and the swing blade are switched to the target working position before returning to the normal speed. This can avoid the problem of surge in the process of switching the air outlet mode of the air conditioner, thereby improving user experience and increasing product competitiveness.

[0114] Figure 13 FIG. 1 is a flow chart of an air outlet control method for an air conditioner according to another embodiment of the present invention, wherein the method includes:

[0115] Step S41: The air conditioner operates normally.

[0116] Step S42: detecting that the power of the wind wheel changes at the same rotation speed.

[0117] Step S43, judging the power change situation, if the power changes continuously, executing step S44, if the power fluctuates, executing step S45.

[0118] Among them, the same speed n m Under the record power P m , and the power P at the next moment m+1 、P m+2 …P m+i , record K1 = P m+1 / P m K2=P m+2 / P m+1 …K i =P m+i / P m+i-1 , if P m+1 / P m ≥1.1 or P m+1 / P m ≤0.9, and K is greater than or equal to 1.1 or less than or equal to 0.9 during the monitoring period, the power fluctuation changes. If P m+1 / P m ≥1.1 or P m+1 / P m ≤0.9, and K is less than 1.1 or greater than 0.9 during the monitoring period, the power changes continuously.

[0119] Step S44: If the operation is abnormal, prompt the user.

[0120] Step S45: When surge occurs, the angles of the wind guide plate and the swing blade are calculated, and the angles of the wind guide plate and the swing blade are adjusted or the wind wheel speed is reduced in combination with the working mode.

[0121] According to the air outlet control method of the air conditioner according to an embodiment of the present invention, when the air guide angle of the air guide plate and the swing angle of the swing blade are manually changed by the user, which affects the resistance of the inner air duct, the method can judge whether surge occurs in the inner air duct through the fluctuation of the operating power of the wind wheel, and adjust at least one of the rotation speed of the wind wheel, the air guide angle of the air guide plate and the swing angle of the swing blade to avoid the occurrence of surge. At the same time, the user can also be prompted to switch to the air outlet mode corresponding to the air guide angle of the air guide plate changed by the user.

[0122] Figure 14 FIG. 1 is a flow chart of an air outlet control method for an air conditioner according to another embodiment of the present invention, wherein the method includes:

[0123] Step S51: The air conditioner operates normally.

[0124] When the air conditioner is operating normally, if the user chooses to switch to the target air outlet mode, step S52 is executed. If it is detected that the power of the wind wheel changes at the same speed, step S60 is executed.

[0125] Step S52: The user chooses to switch to the target air outlet mode.

[0126] Step S53, determining the change in the rotational speed of the wind wheel after switching to the wind outlet mode, if the rotational speed decreases, executing step S54, if the rotational speed increases, executing step S57.

[0127] Step S54, determining whether there is a surge risk, if there is a risk, executing step S55, if there is no risk, executing step S56.

[0128] Step S55: reduce the rotor speed to the minimum non-surge speed, and then increase the speed after the wind guide plate and the swing blade are switched to the target angle.

[0129] After step S55 is completed, the air conditioner can be in a normal operating state.

[0130] Step S56: reduce the wind wheel speed to the target speed, and then switch the wind guide plate and the swing blade to the target angle.

[0131] After step S56 is completed, the air conditioner can be in a normal operating state.

[0132] Step S57, determine whether there is a surge risk, if there is a risk, execute step S58, if there is no risk, execute step S59.

[0133] Step S58: Reduce the rotor speed to the minimum non-surge speed, and then increase the speed after the wind guide plate and the swing blade are switched to the target angle.

[0134] After step S58 is completed, the air conditioner can be in a normal operating state.

[0135] Step S59: switch the wind guide plate and the swing blade to the target angle, and then increase the wind wheel speed to the target speed.

[0136] After step S59 is completed, the air conditioner can be in a normal operating state.

[0137] Step S60: detecting that the power of the wind wheel changes at the same rotation speed.

[0138] Step S61, determine the power change situation. If the power changes continuously, execute step S62; if the power fluctuates, execute step S63.

[0139] Step S62: If the operation is abnormal, prompt the user.

[0140] After step S62 is completed, the air conditioner is in an abnormal operating state.

[0141] Step S63: When surge occurs, calculate the angles of the wind guide plate and the swing blade, and adjust the angles of the wind guide plate and the swing blade or reduce the wind wheel speed in combination with the working mode.

[0142] After step S63 is completed, the air conditioner can be in a normal operating state. In addition, an embodiment of the present invention further provides a computer-readable storage medium, on which an air outlet control program for the air conditioner is stored. When the air outlet control program for the air conditioner is executed by a processor, the air outlet control method for the air conditioner according to the above embodiment is implemented.

[0143] According to the computer-readable storage medium of an embodiment of the present invention, through the air outlet control method of the above embodiment, when the air conditioner switches the air outlet mode, if there is a surge risk in the inner air duct, the wind wheel is first controlled to reduce the speed, and then the swing angle of the swing blade and the air guide angle of the air guide plate are switched, and then the wind wheel is controlled to increase the speed to the target speed, thereby avoiding the surge problem in the process of switching the air outlet mode of the air conditioner, which is beneficial to improving user experience and increasing product competitiveness.

[0144] In addition, an embodiment of the present invention also provides an air conditioner, which includes a processor, a memory, and an air outlet control program of the air conditioner stored in the memory and runnable on the processor. When the processor executes the air outlet control program of the air conditioner, the air outlet control method of the air conditioner of the above embodiment is implemented.

[0145] According to the air conditioner of an embodiment of the present invention, through the air outlet control method of the above embodiment, when the air conditioner switches the air outlet mode, if there is a surge risk in the inner air duct, the wind wheel is first controlled to reduce the speed, and then the swing angle of the swing blade and / or the air guide angle of the air guide plate are switched, and then the wind wheel is controlled to increase the speed to the target speed, thereby avoiding the surge problem in the process of switching the air outlet mode of the air conditioner, which is beneficial to improving user experience and increasing product competitiveness.

[0146] Based on the same inventive concept, an embodiment of the present invention further provides an air outlet control device corresponding to the method in the above embodiment.

[0147] The air conditioner can define an internal air duct, and an air guide plate is provided at the outlet of the internal air duct. The air guide plate can swing up and down to change the air outlet direction of the air conditioner. A swing blade and a wind wheel are provided in the internal air duct. The swing blade can be provided with multiple ventilation holes. The swing blade is arranged between the wind guide plate and the wind wheel.

[0148] Figure 15 The air outlet control device 100 of an air conditioner according to an embodiment of the present invention includes: a determination module 1 and a control module 2 .

[0149] The determination module can be used to determine the target air outlet mode of the air conditioner, wherein the air outlet operating parameters corresponding to the target air outlet mode include at least one of the target rotational speed of the wind wheel, the target swing angle of the swing blade and the target air guide angle of the air guide plate. The control module is used to, during the process of switching the air conditioner from the current air outlet mode to the target air outlet mode, if it is determined that there is a surge risk in the inner air duct, first control the rotational speed of the wind wheel to decrease, then switch the swing angle of the swing blade to the target swing angle and / or switch the air guide angle of the air guide plate to the target air guide angle, and then control the wind wheel to switch from a preset minimum non-surge rotational speed to the target rotational speed.

[0150] It should be noted that the specific implementation method of the air outlet control device of the air conditioner in the embodiment of the present invention is similar to the specific implementation method of the air outlet control method of the air conditioner in the embodiment of the present invention. The control module can also be used to implement the method in the above embodiment. Please refer to the description of the method part for details. In order to reduce redundancy, it will not be repeated here.

[0151] According to the air outlet control device of the air conditioner according to an embodiment of the present invention, when the air conditioner switches the air outlet mode, if the control module determines that there is a surge risk in the internal air duct, it first controls the wind wheel to reduce the speed, then switches the swing angle of the swing blade and / or the air guide angle of the air guide plate, and then controls the wind wheel to increase the speed to the target speed, thereby avoiding the surge problem in the process of switching the air outlet mode of the air conditioner, which is beneficial to improving user experience and increasing product competitiveness.

[0152] It should be noted that the processor may be an integrated circuit chip with signal processing capabilities. The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention.

[0153] Additionally, the logic and / or steps represented in the flowcharts or otherwise described herein, which can be considered, for example, as a sequenced list of executable instructions for implementing the logical functions, can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection having one or more wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0154] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0155] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0156] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A method for controlling air flow of an air conditioner, characterized in that: The air conditioner is defined as having an inner air duct, an air guide plate is provided at an outlet of the inner air duct, a swing blade and a wind wheel are provided in the inner air duct, and the swing blade is provided between the air guide plate and the wind wheel, and the method includes: determining a target air outlet mode for the air conditioner, wherein the air outlet operating parameters corresponding to the target air outlet mode include at least one of a target rotation speed of the impeller, a target swing angle of the swing blade, and a target air guide angle of the air guide plate; During the process of switching the air conditioner from the current air outlet mode to the target air outlet mode, if it is determined that there is a surge risk in the inner air duct, firstly controlling the rotation speed of the wind wheel to decrease, then switching the swing angle of the swing blade to the target swing angle and / or switching the air guide angle of the air guide plate to the target air guide angle, and then controlling the rotation speed of the wind wheel to switch to the target rotation speed; Determining that there is a surge risk in the inner air duct includes: determining a surge interval according to the smaller value of the current rotation speed of the wind wheel and the target rotation speed; When the swing angle of the swing blade and the air guide angle of the air guide plate are both in the surge range, it is determined that there is a surge risk in the inner air duct.

2. The method according to claim 1, characterized in that When controlling the speed of the wind wheel to decrease, if there is still a surge risk in the inner air duct, before switching the swing angle of the swing blade to the target swing angle and / or switching the wind guide angle of the wind guide plate to the target wind guide angle, continue to control the speed of the wind wheel to decrease until the speed of the wind wheel decreases to a preset minimum non-surge speed.

3. The method according to claim 1, characterized in that During the process of the air conditioner switching from the current air outlet mode to the target air outlet mode, if the swing angle of the pendulum blade and the air guide angle of the air guide plate are not in the surge range, and the target speed is less than the current speed, the speed of the wind wheel is first controlled to switch to the target speed, and then the swing angle of the pendulum blade is switched to the target swing angle and the air guide angle of the air guide plate is switched to the target air guide angle.

4. The method according to claim 1, wherein During the process of the air conditioner switching from the current air outlet mode to the target air outlet mode, if the swing angle of the pendulum blade and the air guide angle of the air guide plate are not in the surge range, and the target speed is greater than the current speed, the swing angle of the pendulum blade is first controlled to switch to the target swing angle and the air guide angle of the air guide plate is switched to the target air guide angle, and then the speed of the wind wheel is switched to the target speed.

5. The method according to claim 1, wherein During the operation of the air conditioner, the method further includes: detecting the operating power of the wind wheel; When the operating power of the wind wheel fluctuates, the rotation speed of the wind wheel is reduced, and / or the swing angle of the swing blade and / or the wind guide angle of the wind guide plate are adjusted.

6. The method according to claim 5, characterized in that When the operating power of the wind wheel fluctuates up and down, the rotation speed of the wind wheel is preferentially reduced.

7. The method according to claim 5, characterized in that When the operating power of the wind wheel continues to increase or decrease, the air conditioner is controlled to issue an abnormal prompt message.

8. The method according to claim 1, characterized in that Each rotation speed of the wind wheel corresponds to a surge interval, and the surge interval is determined according to the swing angle of the swing blade and the wind guide angle of the wind guide plate.

9. The method according to claim 8, characterized in that The surge interval is determined according to the following steps: When the wind guide angle θ of the wind guide plate is used as the basis for determination, if the wind guide angle of the wind guide plate is θ t , then the angle at which the blade surges is 0°~α t , and determine the surge interval as [θ t , 0°~α t ]; When the swing angle α of the swing blade is used as the basis for determination, if the swing angle of the swing blade is α t , then the angle at which the wind deflector plate surges is 0°~θ 1t or 0°~θ 2t , and determine the surge interval as [α t , 0°~θ 1t ] and [α t , 0°~θ 2t ].

10. A computer-readable storage medium, characterized in that An air outlet control program of an air conditioner is stored thereon, and when the air outlet control program of the air conditioner is executed by a processor, an air outlet control method of an air conditioner according to any one of claims 1 to 9 is implemented.

11. An air conditioner, characterized in that: The invention comprises a memory, a processor and an air outlet control program of an air conditioner stored in the memory and executable on the processor. When the processor executes the air outlet control program of the air conditioner, the air outlet control method of the air conditioner according to any one of claims 1 to 9 is implemented.

12. An air outlet control device for an air conditioner, characterized in that: The air conditioner is defined as having an inner air duct, an air guide plate is provided at the outlet of the inner air duct, a swing blade and a wind wheel are provided in the inner air duct, and the swing blade is provided between the air guide plate and the wind wheel, and the device comprises: a determination module, configured to determine a target air outlet mode of the air conditioner, wherein the air outlet operation parameters corresponding to the target air outlet mode include at least one of a target rotation speed of the impeller, a target swing angle of the swing blade, and a target air guide angle of the air guide plate; A control module is used for, during the process of the air conditioner switching from the current air outlet mode to the target air outlet mode, if it is determined that the inner air duct has a surge risk, first controlling the rotation speed of the wind wheel to decrease, then switching the swing angle of the swing blade to the target swing angle and / or switching the air guide angle of the air guide plate to the target air guide angle, and then controlling the rotation speed of the wind wheel to switch to the target rotation speed, to determine that the inner air duct has a surge risk, including: determining a surge interval based on the smaller value of the current rotation speed of the wind wheel and the target rotation speed; and determining that the inner air duct has a surge risk when the swing angle of the swing blade and the air guide angle of the air guide plate are both in the surge interval.

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