Air conditioner and control method

Abstract

The invention provides an air conditioner and a control method. According to the air conditioner, an air flue is arranged in a shell, and cross-flow fan blades, a vortex tongue structure and a sensor are all arranged in the air flue; the vortex tongue structure comprises a front vortex tongue and a driving mechanism, the front vortex tongue is arranged on the side close to the cross-flow fan blade, the driving mechanism is arranged below the front vortex tongue, and the front vortex tongue is driven by the driving mechanism to be close to or away from the cross-flow fan blade. According to the embodiment of the invention, the distance between the front vortex tongue and the cross-flow fan blade can be adjusted through the driving mechanism, so that the surge noise generated when the air conditioner operates at a low / medium wind gear can be reduced, and the whistle generated when the air conditioner operates at a high wind gear can also be reduced; according to the embodiment of the invention, the filth blockage degree of the filter screen can be detected according to the sound pressure signal collected by the sensor and the distance between the front vortex tongue and the cross-flow fan blade, and the user is reminded to clean the filter screen in time according to the detected filth blockage degree, so that the judgment precision of whether to carry out cleaning reminding on the filter screen or not can be improved.

Description

Technical Field

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

[0002] A crossflow fan is a sealed fan that is widely used in home and commercial environments due to its advantages such as smooth air flow and low noise. The working principle of the crossflow fan is to generate airflow inside the fan through the internal fan blade design, and then lead the air out. The design of the crossflow fan blade allows the air to flow in the fan in a continuous manner, thereby improving the efficiency and performance of the fan. However, the crossflow fan blade has the disadvantages of low pressure head and weak wind resistance. In some special cases, surge is very likely to occur. The intermittent airflow pulsation and abnormal noise caused by the surge phenomenon greatly affect the user experience.

[0003] Therefore, the existing air conditioner has the problem of loud operating noise. Summary of the invention

[0004] The embodiments of the present invention provide an air conditioner and a control method, aiming to solve the problem of high operating noise in the existing air conditioner.

[0005] In a first aspect, an embodiment of the present invention discloses an air conditioner, the air conditioner comprising: a housing, a crossflow fan blade, a vortex tongue structure and a sensor;

[0006] An air duct is arranged in the shell, and the crossflow blade, the vortex tongue structure and the sensor are all arranged in the air duct;

[0007] The vortex tongue structure includes a front vortex tongue and a driving mechanism, wherein the front vortex tongue is arranged on a side close to the crossflow fan blade, and the driving mechanism is arranged below the front vortex tongue. The front vortex tongue is driven by the driving mechanism to approach or move away from the crossflow fan blade.

[0008] Furthermore, the front vortex tongue comprises a vortex tongue surface and a serrated surface which are arranged adjacent to each other, and the serrated surface is arranged toward a side close to the crossflow fan blade;

[0009] The sawtooth surface is provided with a plurality of saw teeth, and the plurality of saw teeth are evenly arranged along the long axis direction of the sawtooth surface.

[0010] Furthermore, the driving mechanism includes a cam and a stepper motor, and the cam, the stepper motor and the front vortex tongue are sequentially connected in transmission.

[0011] Furthermore, the cam is a water drop-shaped structure, and the head of the cam abuts against the front volute.

[0012] Furthermore, a rear vortex tongue is also provided in the air duct, and the rear vortex tongue is provided on a side close to the crossflow fan blade;

[0013] An air outlet is formed between the front vortex tongue and the rear vortex tongue, and the sensor is arranged on a side of the rear vortex tongue away from the crossflow fan blade.

[0014] In a second aspect, an embodiment of the present invention further discloses a method for controlling an air conditioner, which is applied to the air conditioner in the first aspect. The method comprises:

[0015] Obtain the target control parameters corresponding to the current wind turbine operating gear according to the preset height control strategy;

[0016] The driving mechanism is controlled according to the target control parameter to adjust the distance between the front vortex tongue and the crossflow blade.

[0017] Furthermore, after controlling the driving mechanism according to the target control parameter, the method further includes:

[0018] Determine whether the current fan operation gear meets the detection conditions;

[0019] If the condition is satisfied, judging whether the air conditioner is surging according to the sound pressure signal collected by the sensor, and obtaining a first judgment result;

[0020] If the first judgment result is yes, then judging whether the distance between the front vortex tongue and the crossflow blade is the minimum distance, and obtaining a second judgment result;

[0021] If the second judgment result is yes, a corresponding filter cleaning reminder is issued based on sound and light signals and / or text signals.

[0022] Furthermore, after obtaining the second judgment result, the method further includes:

[0023] If the second judgment result is no, the driving mechanism is controlled according to the preset spacing adjustment parameter to reduce the spacing between the front vortex tongue and the crossflow fan blade, and the preset time is delayed to return to the step of determining whether the air conditioner is surging according to the sound pressure signal collected by the sensor.

[0024] Further, the determining whether the current fan operating gear meets the detection condition includes:

[0025] Determine whether the current fan operation gear is the same as the gear parameter in the detection condition;

[0026] If they are the same, it is determined that the detection condition is met;

[0027] If they are not the same, it is determined that the detection condition is not met.

[0028] In a third aspect, an embodiment of the present invention further provides a control device for an air conditioner, the device comprising:

[0029] An acquisition unit, used to acquire a target control parameter corresponding to the current wind turbine operating gear according to a preset height control strategy;

[0030] A control unit is used to control the driving mechanism according to the target control parameter to adjust the spacing between the front vortex tongue and the crossflow blade.

[0031] The present invention provides an air conditioner and a control method, the air conditioner comprising: a housing, a crossflow blade, a vortex tongue structure and a sensor; an air duct is arranged in the housing, the crossflow blade, the vortex tongue structure and the sensor are all arranged in the air duct; the vortex tongue structure comprises a front vortex tongue and a driving mechanism, the front vortex tongue is arranged on a side close to the crossflow blade, the driving mechanism is arranged below the front vortex tongue, and the front vortex tongue approaches or moves away from the crossflow blade under the driving of the driving mechanism. In the embodiment of the present invention, the distance between the front vortex tongue and the crossflow blade can be adjusted by the driving mechanism, so as to reduce the surging noise generated by the air conditioner when the air conditioner is running at a low / medium windshield, and also reduce the whistle sound generated by the air conditioner when the air conditioner is running at a high windshield; in the embodiment of the present invention, the degree of dirtiness and blockage of the filter screen can be detected according to the sound pressure signal collected by the sensor and the distance between the front vortex tongue and the crossflow blade, and the user can be reminded to clean the filter screen in time according to the detected degree of dirtiness and blockage, so as to improve the judgment accuracy of whether to remind the filter screen to be cleaned, and improve the user's satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0033] Figure 1 A cross-sectional schematic diagram of an air conditioner provided by an embodiment of the present invention;

[0034] Figure 2 A first state structural diagram of an air conditioner provided by an embodiment of the present invention;

[0035] Figure 3 A second state structural diagram of an air conditioner provided by an embodiment of the present invention;

[0036] Figure 4 A third state structural diagram of the air conditioner provided by an embodiment of the present invention;

[0037] Figure 5A structural diagram of a front vortex tongue provided in an embodiment of the present invention;

[0038] Figure 6 A schematic flow chart of a method for controlling an air conditioner provided by an embodiment of the present invention;

[0039] Figure 7 A schematic block diagram of a control device for an air conditioner provided in an embodiment of the present invention.

[0040] Figure Number:

[0041] 10. air conditioner; 11. housing; 12. crossflow blade; 13. sensor; 14. front vortex tongue; 141. vortex tongue surface; 142. serrated surface; 15. cam. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0043] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0044] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0045] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0046] The embodiment of the present invention provides an air conditioner 10, such as Figures 1 to 4As shown, the air conditioner 10 includes: a shell 11, a crossflow fan blade 12, a vortex tongue structure and a sensor 13; an air duct is arranged in the shell 11, and the crossflow fan blade 12, the vortex tongue structure and the sensor 13 are all arranged in the air duct; the vortex tongue structure includes a front vortex tongue 14 and a driving mechanism, the front vortex tongue 14 is arranged on a side close to the crossflow fan blade 12, the driving mechanism is arranged below the front vortex tongue 14, and the front vortex tongue 14 is driven by the driving mechanism to approach or move away from the crossflow fan blade 12.

[0047] In this embodiment, the air conditioner 10 includes: a shell 11, a crossflow fan blade 12, a vortex tongue structure and a sensor 13; wherein the sensor 13 is used to detect a sound pressure signal to determine the degree of dirtiness and blockage of the filter; an air duct is arranged in the shell 11, and the crossflow fan blade 12, the vortex tongue structure and the sensor 13 are all arranged in the air duct; the vortex tongue structure includes a front vortex tongue 14 and a driving mechanism, the front vortex tongue 14 is arranged on a side close to the crossflow fan blade 12, and the driving mechanism is arranged below the front vortex tongue 14, and the front vortex tongue 14 is driven by the driving mechanism to approach or move away from the crossflow fan blade 12.

[0048] When a traditional air conditioner is operated at a low windshield, it is easy for the fan resistance to be less than the system resistance, thereby causing air backflow and causing surge. The embodiment of the present invention can effectively alleviate surge and reduce surge noise emitted by the air conditioner 10 during operation by setting the front vortex tongue 14 on the side close to the crossflow fan blade 12; wherein, the serrated surface 142 of the front vortex tongue 14 is provided with a plurality of serrations, and the serrated surface 142 can guide the airflow, reduce the wall swirl phenomenon, and improve the uniformity of gas flow.

[0049] When the air conditioner 10 is operated at a high wind speed, if the distance between the front vortex tongue 14 and the crossflow fan blade 12 is too close, a whistling sound will be emitted. The embodiment of the present invention can reduce the whistling sound emitted by the air conditioner 10 when operating at a high wind speed by adjusting the distance between the front vortex tongue 14 and the crossflow fan blade 12 through the driving mechanism, thereby improving the user experience.

[0050] Specifically, when the air conditioner 10 is operated at a low windshield, the driving mechanism is used to adjust the distance between the front vortex tongue 14 and the crossflow blade 12 to a first distance to reduce the system resistance, so that the fan resistance is greater than the system resistance, thereby increasing the air intake and reducing the surging phenomenon; wherein the first distance may be the minimum distance (for details, see Figure 2 ).

[0051] When the windshield in the air conditioner 10 is running, the driving mechanism is used to adjust the distance between the front vortex tongue 14 and the crossflow blade 12 to a second distance to eliminate surge and reduce the operating noise of the air conditioner 10 (for details, please refer to Figure 3 ).

[0052] When the air conditioner 10 is operated at a high windshield, the driving mechanism is used to adjust the spacing between the front vortex tongue 14 and the crossflow blade 12 to a third spacing to reduce the whistling sound generated by the air conditioner 10 when the air conditioner 10 is operated at a high windshield; wherein the third spacing may be a maximum spacing, and the first spacing < the second spacing < the third spacing (for details, please refer to Figure 4 ).

[0053] The embodiment of the present invention can adjust the distance between the front vortex tongue 14 and the crossflow blade 12 by utilizing the driving mechanism according to the operating gear of the air conditioner 10, thereby reducing the surge noise generated when the air conditioner 10 is operated at a low / medium windshield, and can also reduce the whistling sound generated when the air conditioner 10 is operated at a high windshield, thereby improving the user experience.

[0054] Furthermore, when the air conditioner 10 is running at a low / medium windshield, it is determined whether surge occurs in the air conditioner 10 based on the sound pressure signal collected by the sensor 13. If surge occurs, the driving mechanism is used to reduce the distance between the front vortex tongue 14 and the crossflow fan blades 12 to mitigate the surge. When the distance between the front vortex tongue 14 and the crossflow fan blades 12 is the minimum distance, and the sensor 13 still detects surge fluctuations, it means that the filter is seriously clogged. At this time, the user can be reminded to clean the filter to ensure the smooth operation of the air conditioner 10.

[0055] In one embodiment, if Figure 1 and Figure 5 As shown, the front vortex tongue 14 includes a vortex tongue surface 141 and a serrated surface 142 that are adjacently arranged, and the serrated surface 142 is arranged toward a side close to the crossflow fan blade 12 ; a plurality of saw teeth are arranged on the serrated surface 142 , and the plurality of saw teeth are evenly arranged along the long axis direction of the serrated surface 142 .

[0056] In this embodiment, the front vortex tongue 14 includes a vortex tongue surface 141 and a serrated surface 142 that are adjacent to each other. The serrated surface 142 is arranged on a side close to the cross-flow fan blade 12; a plurality of serrations are arranged on the serrated surface 142, and the plurality of serrations are evenly arranged along the long axis direction of the serrated surface 142. The serrated surface 142 can guide the airflow, reduce the wall swirl phenomenon, improve the uniformity of the gas flow, and reduce the surge noise of the air conditioner 10.

[0057] In one embodiment, if Figure 1 and Figure 5As shown, the driving mechanism includes a cam 15 and a stepper motor, and the cam 15, the stepper motor and the front vortex tongue 14 are sequentially connected in transmission.

[0058] In this embodiment, the driving mechanism includes a cam 15 and a stepper motor. The cam 15 can rotate under the drive of the stepper motor, thereby driving the front vortex tongue 14 to rotate synchronously. When the front vortex tongue 14 rotates, the inclination angle of the front vortex tongue 14 will change, thereby achieving precise adjustment of the rotation height of the serrated surface 142.

[0059] Specifically, when the air conditioner 10 is operated at a low windshield, the drive mechanism is used to adjust the rotation height of the sawtooth surface 142 to a first height to reduce system resistance, so that the fan resistance is greater than the system resistance, thereby increasing the air intake and reducing the surging phenomenon; when the rotation height of the sawtooth surface 142 is the first height, the spacing between the front vortex tongue 14 and the crossflow fan blade 12 is the first spacing; wherein, when the first height is the maximum height, the first spacing is the minimum spacing (for details, please refer to Figure 2 ).

[0060] When the windshield in the air conditioner 10 is running, the drive mechanism is used to adjust the rotation height of the sawtooth surface 142 to the second height to eliminate surge and reduce the operating noise of the air conditioner 10; when the rotation height of the sawtooth surface 142 is adjusted to the second height, the spacing between the front vortex tongue 14 and the crossflow fan blade 12 is the second spacing (for details, please refer to Figure 3 ).

[0061] When the air conditioner 10 is operated at a high windshield, the drive mechanism is used to adjust the rotation height of the sawtooth surface 142 to a third height to reduce the whistling sound generated by the air conditioner 10 when the air conditioner 10 is operated at a high windshield. At this time, the vortex tongue surface 141 is flush with the sawtooth surface 142; when the rotation height of the sawtooth surface 142 is adjusted to the third height, the spacing between the front vortex tongue 14 and the crossflow fan blade 12 is the third spacing; wherein, when the third height is the minimum height, the third spacing is the maximum spacing, the first height> the second height> the third height, the first spacing< the second spacing< the third spacing (for details, please refer to Figure 4 ).

[0062] In one embodiment, if Figure 1 and Figure 5 As shown, the cam 15 is a water drop-shaped structure, and the head of the cam 15 abuts against the front vortex tongue 14 .

[0063] In this embodiment, the cam 15 is a teardrop-shaped structure or a conical structure or a truncated cone structure. The cam 15 can rotate under the drive of the stepper motor. The head of the cam 15 abuts against the front vortex tongue 14. When the cam 15 rotates, the front vortex tongue 14 can be driven to rotate synchronously. When the front vortex tongue 14 rotates, its inclination angle will change accordingly. When its inclination angle changes, the rotation height of the serrated surface 142 will also change accordingly. The embodiment of the present invention can accurately adjust the spacing between the front vortex tongue 14 and the crossflow fan blade 12 by adjusting the rotation height of the serrated surface 142, thereby reducing the surge noise generated by the air conditioner 10 when operating at a low / medium windshield, and can also reduce the whistle sound generated by the air conditioner 10 when operating at a high windshield.

[0064] In one embodiment, if Figure 1 As shown, a rear vortex tongue is also provided in the air duct, and the rear vortex tongue is arranged on a side close to the crossflow fan blade 12; an air outlet is formed between the front vortex tongue 14 and the rear vortex tongue, and the sensor 13 is arranged on a side of the rear vortex tongue away from the crossflow fan blade 12.

[0065] In this embodiment, a rear vortex tongue is further provided in the air duct, and the rear vortex tongue is provided on a side close to the crossflow fan blade 12; an air outlet is formed between the front vortex tongue 14 and the rear vortex tongue, and the sensor 13 is provided on a side of the rear vortex tongue away from the crossflow fan blade 12, and the sensor 13 is used to collect sound pressure signals; specifically, the sensor 13 can sense fluctuations of different frequencies. When the air conditioner 10 surges, the sound pressure signal will show regular peak fluctuations. When the sensor 13 detects this fluctuation, it will send a spacing adjustment signal to the controller of the air conditioner 10, so that it can control the driving structure and thereby reduce the spacing between the front vortex tongue 14 and the crossflow fan blade 12 to reduce the surge phenomenon.

[0066] The present invention also provides a control method for an air conditioner, which is applied to the above-mentioned air conditioner. Figure 6 As shown, the method includes steps S110-S120:

[0067] S110. Obtain target control parameters corresponding to the current wind turbine operating gear according to a preset height control strategy.

[0068] In this embodiment, the height control strategy includes a first control parameter, a second control parameter and a third control parameter; wherein, the first control parameter corresponds to the low windshield, the second control parameter corresponds to the middle windshield, and the third control parameter corresponds to the high windshield; the embodiment of the present invention can obtain the target control parameter corresponding to the current fan operating gear according to the height control strategy to accurately adjust the spacing between the front vortex tongue and the crossflow fan blade, which can reduce the surge noise generated by the air conditioner when operating at a low / medium windshield, and can also reduce the whistle sound generated by the air conditioner when operating at a high windshield, thereby improving the user experience.

[0069] S120. Control the driving mechanism according to the target control parameter to adjust the distance between the front vortex tongue and the crossflow blade.

[0070] In this embodiment, the driving mechanism is controlled according to the target control parameter to adjust the spacing between the front vortex tongue and the crossflow fan blade; specifically, the driving structure includes a cam and a stepper motor, and the cam, the stepper motor and the front vortex tongue are sequentially connected in transmission; the cam can be rotated under the drive of the stepper motor, and the head of the cam abuts against the front vortex tongue. When the cam rotates, the front vortex tongue can be driven to rotate synchronously. When the front vortex tongue rotates, its inclination angle will change accordingly. When its inclination angle changes, the rotation height of the serrated surface will also change accordingly. The embodiment of the present invention can accurately adjust the spacing between the front vortex tongue and the crossflow fan blade by adjusting the rotation height of the serrated surface, which can reduce the surge noise generated by the air conditioner when operating at a low / medium windshield, and can also reduce the whistle sound generated by the air conditioner when operating at a high windshield.

[0071] Specifically, when the air conditioner is operated at a low windshield, the driving mechanism is controlled according to the first control parameter to adjust the spacing between the front vortex tongue and the crossflow fan blade to a first spacing to reduce system resistance, so that the fan resistance is greater than the system resistance, thereby increasing the air intake volume and reducing the surging phenomenon; wherein the first spacing may be a minimum spacing (for details, see Figure 2 ).

[0072] When the windshield in the air conditioner is running, the driving mechanism is controlled according to the second control parameter to adjust the spacing between the front vortex tongue and the crossflow fan blade to the second spacing to eliminate surge and reduce the operating noise of the air conditioner (for details, please refer to Figure 3 ).

[0073] When the air conditioner is operated at a high windshield, the driving mechanism is controlled according to the third control parameter to adjust the spacing between the front vortex tongue and the crossflow fan blade to a third spacing to reduce the whistling sound generated by the air conditioner when the air conditioner is operated at a high windshield; wherein the third spacing may be a maximum spacing, the first spacing < the second spacing < the third spacing (for details, please refer to Figure 4 ).

[0074] In one implementation, after step S120, it also includes: determining whether the current fan operating gear meets the detection conditions; if so, determining whether the air conditioner is surging based on the sound pressure signal collected by the sensor to obtain a first judgment result; if the first judgment result is yes, determining whether the spacing between the front vortex tongue and the crossflow fan blade is the minimum spacing to obtain a second judgment result; if the second judgment result is yes, issuing a corresponding filter cleaning reminder based on sound and light signals and / or text signals.

[0075] In this embodiment, the detection conditions include low wind speed and medium wind speed, that is, if the current fan operating gear is low wind speed or medium wind speed, it is determined that the current fan operating gear meets the detection conditions; if satisfied, it is determined whether the air conditioner has surge according to the sound pressure signal collected by the sensor to obtain a first judgment result; if the first judgment result is yes, it is determined whether the spacing between the front vortex tongue and the crossflow fan blade is the minimum spacing, or it is determined whether the rotation height of the serrated surface of the front vortex tongue is the maximum height to obtain a second judgment result; if the second judgment result is yes, a corresponding filter cleaning reminder is issued based on sound and light signals and / or text signals to remind the user to clean the filter in time to ensure the smooth operation of the air conditioner.

[0076] Furthermore, if the current fan operating gear does not meet the detection condition, the air conditioner is controlled to maintain the current operating state and operate normally.

[0077] If the first judgment result is no, the air conditioner is controlled to maintain the current operating state and operate normally.

[0078] In one embodiment, after obtaining the second judgment result, it also includes: if the second judgment result is no, controlling the driving mechanism according to a preset spacing adjustment parameter to reduce the spacing between the front vortex tongue and the crossflow fan blade, and delaying for a preset time to return to the step of determining whether the air conditioner is experiencing surge based on the sound pressure signal collected by the sensor.

[0079] In this embodiment, if the second judgment result is no, the driving mechanism is controlled according to the preset spacing adjustment parameter to reduce the spacing between the front vortex tongue and the crossflow fan blade (i.e., increase the rotation height of the serrated surface), and delays for a preset time to return to the step of determining whether the air conditioner is surging based on the sound pressure signal collected by the sensor, thereby ensuring the smooth operation of the air conditioner and improving the user experience.

[0080] In one embodiment, the determining whether the current fan operating gear meets the detection condition includes: determining whether the current fan operating gear is the same as the gear parameter in the detection condition; if the same, determining that the detection condition is met; if not the same, determining that the detection condition is not met.

[0081] In this embodiment, the gear parameters include low wind gear and middle wind gear. If the current fan operating gear is low wind gear or middle wind gear, it is determined that the current fan operating gear meets the detection condition; if the current fan operating gear is high wind gear, the current fan operating gear is different from the gear parameter, and it is determined that the current fan operating gear does not meet the detection condition.

[0082] To sum up, the embodiment of the present invention can adjust the distance between the front vortex tongue and the crossflow fan blade through the driving mechanism, which can reduce the surging noise generated by the air conditioner when operating at a low / medium windshield, and can also reduce the whistling sound generated by the air conditioner when operating at a high windshield; the embodiment of the present invention can also detect the degree of dirtiness and blockage of the filter according to the sound pressure signal collected by the sensor and the distance between the front vortex tongue and the crossflow fan blade, and remind the user to clean the filter in time according to the detected degree of dirtiness and blockage, which can improve the judgment accuracy of whether to remind the filter to clean the filter and improve user satisfaction.

[0083] Figure 7 Schematic block diagram of a control device for an air conditioner provided by an embodiment of the present invention. Figure 7 As shown, corresponding to the above air conditioner control method, the present invention also provides an air conditioner control device, which is configured in the air conditioner controller. Figure 7 , the control device 700 of the air conditioner comprises:

[0084] An acquisition unit 701 is used to acquire a target control parameter corresponding to the current wind turbine operating gear according to a preset height control strategy;

[0085] The control unit 702 is used to control the driving mechanism according to the target control parameter to adjust the distance between the front vortex tongue and the crossflow blade.

[0086] In some embodiments, after executing the step of controlling the driving mechanism according to the target control parameter, the control unit 702 is further configured to:

[0087] Determine whether the current fan operating gear meets the detection conditions; if so, determine whether the air conditioner is surging according to the sound pressure signal collected by the sensor to obtain a first judgment result; if the first judgment result is yes, determine whether the spacing between the front vortex tongue and the crossflow fan blade is the minimum spacing to obtain a second judgment result; if the second judgment result is yes, issue a corresponding filter cleaning reminder based on sound and light signals and / or text signals.

[0088] In some embodiments, after executing the step of obtaining the second judgment result, the control unit 702 is further configured to:

[0089] If the second judgment result is no, the driving mechanism is controlled according to the preset spacing adjustment parameter to reduce the spacing between the front vortex tongue and the crossflow fan blade, and the preset time is delayed to return to the step of determining whether the air conditioner is surging according to the sound pressure signal collected by the sensor.

[0090] In some embodiments, when executing the step of determining whether the current fan operating gear meets the detection condition, the control unit 702 is specifically used to:

[0091] Determine whether the current fan operation gear is the same as the gear parameter in the detection condition; if the same, determine that the detection condition is met; if not the same, determine that the detection condition is not met.

[0092] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the control device and each unit of the above-mentioned air conditioner can refer to the corresponding description in the aforementioned method embodiment, and for the convenience and brevity of description, it will not be repeated here.

[0093] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An air conditioner, characterized in that: The air conditioner comprises: a housing, a crossflow fan blade, a vortex tongue structure and a sensor; An air duct is arranged in the shell, and the crossflow blade, the vortex tongue structure and the sensor are all arranged in the air duct; The vortex tongue structure includes a front vortex tongue and a driving mechanism, wherein the front vortex tongue is arranged on a side close to the crossflow fan blade, and the driving mechanism is arranged below the front vortex tongue. The front vortex tongue is driven by the driving mechanism to approach or move away from the crossflow fan blade.

2. The air conditioner according to claim 1, characterized in that: The front vortex tongue comprises a vortex tongue surface and a serrated surface which are arranged adjacent to each other, and the serrated surface is arranged toward a side close to the crossflow fan blade; The sawtooth surface is provided with a plurality of saw teeth, and the plurality of saw teeth are evenly arranged along the long axis direction of the sawtooth surface.

3. The air conditioner according to claim 1, characterized in that: The driving mechanism comprises a cam and a stepping motor, and the cam, the stepping motor and the front vortex tongue are sequentially connected in transmission.

4. The air conditioner according to claim 3, characterized in that: The cam is a water drop-shaped structure, and the head of the cam abuts against the front volute.

5. The air conditioner according to claim 1, characterized in that: A rear vortex tongue is also provided in the air duct, and the rear vortex tongue is provided close to one side of the crossflow fan blade; An air outlet is formed between the front vortex tongue and the rear vortex tongue, and the sensor is arranged on a side of the rear vortex tongue away from the crossflow fan blade.

6. A method for controlling an air conditioner, applied to the air conditioner according to any one of claims 1 to 5, characterized in that: The method comprises: Obtain the target control parameters corresponding to the current wind turbine operating gear according to the preset height control strategy; The driving mechanism is controlled according to the target control parameter to adjust the distance between the front vortex tongue and the crossflow blade.

7. The air conditioner control method according to claim 6, characterized in that: After the driving mechanism is controlled according to the target control parameter, the method further includes: Determine whether the current fan operation gear meets the detection conditions; If the condition is satisfied, judging whether the air conditioner is surging according to the sound pressure signal collected by the sensor, and obtaining a first judgment result; If the first judgment result is yes, then judging whether the distance between the front vortex tongue and the crossflow blade is the minimum distance, and obtaining a second judgment result; If the second judgment result is yes, a corresponding filter cleaning reminder is issued based on sound and light signals and / or text signals.

8. The air conditioner control method according to claim 7, characterized in that: After obtaining the second judgment result, the method further includes: If the second judgment result is no, the driving mechanism is controlled according to the preset spacing adjustment parameter to reduce the spacing between the front vortex tongue and the crossflow fan blade, and the preset time is delayed to return to the step of determining whether the air conditioner is surging according to the sound pressure signal collected by the sensor.

9. The air conditioner control method according to claim 7, characterized in that: The determining whether the current fan operating gear meets the detection condition includes: Determine whether the current fan operation gear is the same as the gear parameter in the detection condition; If they are the same, it is determined that the detection condition is met; If they are not the same, it is determined that the detection condition is not met.

10. A control device for an air conditioner, characterized in that: The device comprises: An acquisition unit, used to acquire a target control parameter corresponding to the current wind turbine operating gear according to a preset height control strategy; A control unit is used to control the driving mechanism according to the target control parameter to adjust the spacing between the front vortex tongue and the crossflow blade.

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