Air treatment equipment, control method and storage medium

Abstract

The invention discloses air treatment equipment, a control method and a storage medium, and the control method comprises the steps that a driving signal is sent to a resonance actuator; the maximum feedback current generated by the direct piezoelectric effect of the resonance actuator is obtained, and a driving signal corresponding to the maximum feedback current is sent to the resonance actuator; wherein the voltage peak value and / or the frequency of each driving signal are / is periodically changed, and the driving signals with different voltage peak value and / or frequency change rules correspond to different maximum feedback currents. According to the technical scheme, the technical problem that an existing air conditioner cannot create differentiated pulsating wind feelings by adjusting the rotating speed of a wind wheel of a draught fan is solved.

Description

Technical Field

[0001] The present invention relates to the field of electrical equipment, and in particular to an air treatment device, a control method and a storage medium. Background Art

[0002] At present, in order to create a strong and weak alternating pulsating wind feeling, the existing air conditioner usually adjusts the speed of the fan wheel, for example, the speed of the fan wheel is switched between high and low speeds in turn. The fan wheel is directly driven by a motor.

[0003] In order to create a pulsating wind feeling, the motor speed needs to change rapidly and alternately. Existing ordinary motors cannot respond quickly to create a clear pulsating wind feeling.

[0004] The rapid change of motor speed leads to the rapid change of wind wheel speed, which produces a large abnormal noise and increases the noise value of the whole machine when the air conditioner is running.

[0005] When the motor drives the wind wheel, the speed changes rapidly, so the motor and wind wheel are easily damaged, their service life is greatly reduced, and their reliability is reduced.

[0006] Since the rotation speed of the fan wheel directly affects the air volume of the air conditioner, the rotation speed of the fan wheel will affect the cooling capacity of the air conditioner when it switches between high and low speeds, increasing the difficulty of regulating the cooling capacity of the air conditioner.

[0007] Therefore, creating a pulsating wind feeling by adjusting the speed of the fan's impeller requires too high motor performance, too much noise, and reduces product reliability. In particular, it is impossible to create a differentiated pulsating wind feeling by adjusting the speed of the fan's impeller. Summary of the invention

[0008] The technical problem to be solved by the present invention is that the existing air conditioner creates a pulsating wind feeling by adjusting the speed of the fan wheel, but the wind effect is poor and a differentiated pulsating wind feeling cannot be created.

[0009] To achieve the above-mentioned purpose, the present application proposes a control method for an air treatment device, wherein an air outlet of the air treatment device is provided with an air guide component, wherein the air guide component includes one or a plurality of air guide blades arranged at intervals, wherein the air guide component also includes a driving device, wherein the driving device includes a resonant actuator, wherein the resonant actuator is a piezoelectric material, and wherein the resonant actuator can drive the air guide blade to resonate to achieve turbulence; the control method includes:

[0010] sending a drive signal to the resonant actuator;

[0011] Acquiring a maximum feedback current generated by a positive piezoelectric effect of the resonant actuator, and sending a driving signal corresponding to the maximum feedback current to the resonant actuator;

[0012] Among them, the voltage peak and / or frequency of each driving signal changes periodically, and the maximum feedback current corresponding to driving signals with different voltage peak and / or frequency change patterns is different. The frequency range of each driving signal is the resonant frequency range of the air guide component.

[0013] In an illustrative embodiment, the value range of the maximum feedback current includes multiple feedback current ranges, and the multiple feedback current ranges correspond to multiple different driving signals respectively;

[0014] The driving signal corresponding to the maximum feedback current is a driving signal corresponding to a feedback current range to which the maximum feedback current belongs.

[0015] In an exemplary embodiment, the driving signal includes a plurality of preset driving signals, and the voltage peak values ​​and / or frequencies of any two preset driving signals are different;

[0016] The preset driving signals in any two driving signals are not completely the same;

[0017] The step of sending a driving signal corresponding to the maximum feedback current to the resonant actuator includes:

[0018] A plurality of preset driving signals corresponding to the maximum feedback current are cyclically sent to the resonant actuator.

[0019] In an exemplary embodiment, in each driving signal, the voltage peak values ​​of all the preset driving signals are different from each other, and the frequencies of all the preset driving signals are the same; or

[0020] In each driving signal, the voltage peak values ​​of all the preset driving signals are the same, and the frequencies of all the preset driving signals are different from each other; or

[0021] In each driving signal, the voltage peak values ​​of all the preset driving signals are different from each other, and the frequencies of all the preset driving signals are different from each other.

[0022] In an exemplary embodiment, in each driving signal, a preset driving signal with a greater frequency has a greater voltage peak value.

[0023] In an exemplary embodiment, in each driving signal, voltage peak values ​​of at least two preset driving signals are different;

[0024] Among the voltage peak values ​​of all preset driving signals of each driving signal, the maximum voltage peak value is more than twice the minimum voltage peak value.

[0025] In an exemplary embodiment, the signal duration of each preset driving signal is 2 to 20 seconds.

[0026] In an exemplary embodiment, in each driving signal, the signal duration of each preset driving signal is the same; or,

[0027] In each driving signal, at least two preset driving signals have different signal durations.

[0028] In an exemplary embodiment, in each driving signal, a preset driving signal with a higher frequency has a longer signal duration; or

[0029] In each driving signal, a preset driving signal with a higher frequency has a shorter signal duration; or

[0030] In each driving signal, at least two preset driving signals with different frequencies have the same signal duration.

[0031] In an exemplary embodiment, the signal duration of the preset driving signal having the first resonant frequency of the air guide plate is 7 to 15 seconds; and / or

[0032] The signal duration of the preset driving signal with the frequency of the second resonant frequency is 3 to 5 seconds, and the order of the first resonant frequency is higher than the order of the second resonant frequency.

[0033] In an illustrative embodiment, the smaller the maximum feedback current is, the larger the average voltage peak value or the higher the average frequency of the corresponding driving signal is.

[0034] In an illustrative embodiment, before sending the driving signal to the resonant actuator, the control method further includes:

[0035] Receive user settings for the correspondence between the drive signal and the maximum feedback current, the preset drive signal quantity of each drive signal, the arrangement order of the preset drive signals of each drive signal, the signal duration of each preset drive signal, the voltage peak value of each preset drive signal and / or the frequency of each preset drive signal.

[0036] The present application also proposes a computer-readable storage medium on which a computer program is stored, wherein when the computer program is executed by a processor, the control method of the air treatment equipment as described above is implemented.

[0037] The present application also proposes an air treatment device, which comprises:

[0038] The housing is provided with an air supply channel and an air outlet arranged at one end of the air supply channel;

[0039] An air guide component is arranged at the air outlet, comprising one or a plurality of air guide plates arranged at intervals and a driving device, wherein the driving device comprises a resonant actuator, the resonant actuator is a piezoelectric material, and the resonant actuator can drive the air guide plates to resonate to achieve turbulence;

[0040] a current detection component, electrically connected to the resonant actuator, for detecting a maximum feedback current generated by a positive piezoelectric effect of the resonant actuator; and

[0041] The control device is electrically connected to the resonant actuator and is configured to execute the control method of the air treatment equipment as described above.

[0042] In the technical solution of the present application, when the voltage peak and / or frequency of the driving signal changes periodically, the degree of disturbance of the air flow output from the air outlet by the air guide plate changes periodically, and the degree of softening of the air flow at the air outlet changes periodically, thereby simulating a pulsating wind feeling.

[0043] Since different maximum feedback currents correspond to driving signals with different voltage peaks and / or frequency change patterns, the air handling equipment can deliver pulsating wind with different change patterns according to the size of the maximum feedback current (that is, the wind speed at the outlet), thereby creating a differentiated pulsating wind feeling.

[0044] The air guide vanes of the air guide component redistribute the wind field at the air outlet by resonance to create a pulsating wind. The air guide component has very little resistance to the airflow output from the air outlet and will not affect the air volume at the air outlet of the air handling device. It can process wind of different air volumes to form a pulsating wind. The air guide component makes little noise when working. At the same time, due to the rapid change of the driving signal input to the resonant actuator, the vibration amplitude or vibration frequency of the air guide vanes can change rapidly. Thus, by setting the voltage peak value and / or frequency of the driving signal to a rapid periodic change, the vibration amplitude and / or vibration frequency of the air guide vanes can also change rapidly periodically, and the air handling device can create a pulsating wind with a short change period. The change period of the pulsating wind can reach seconds. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0046] Figure 1 This is a three-dimensional schematic diagram of an air treatment device in an embodiment of the present application;

[0047] Figure 2 is a three-dimensional schematic diagram of an air guide component in an embodiment of the present application;

[0048] Figure 3 A partial schematic diagram of an air guide component in an embodiment of the present application;

[0049] Figure 4 This is a flow chart of a control method for air handling equipment in an embodiment of the present application.

[0050] Description of Figure Numbers:

[0051] 100. Indoor unit; 1. Casing; 11. Air outlet; 2. Air guide component; 21. Air guide assembly; 211. Driving device; 212. Air guide vane; 22. Connecting piece.

[0052] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0053] 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 only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0055] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In addition, the technical solutions between each embodiment of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0058] This embodiment proposes an air treatment device, which can take in and out air, and has unlimited air treatment functions, for example, it can perform at least one of temperature adjustment, humidification, purification, circulation, etc. on the air. The air treatment device includes but is not limited to an air conditioner, and the air treatment device can also be a purifier, a humidifier, a fan, etc. After the specific type of the air treatment device is determined, those skilled in the art can know other components of the air treatment device, which will not be described here.

[0059] like Figure 1 As shown, Figure 1 The structure of an air treatment device 100 in this embodiment is shown. The air treatment device 100 includes a housing 1, an air supply component, an air guide component 2, an adjustment component, a current detection component and a control device.

[0060] The top of the housing 1 is provided with an air inlet, and the bottom of the housing 1 is provided with an air outlet 11. The air outlet 11 can be configured as a strip, or a straight strip. An air supply flow channel is provided in the housing 1, and the two ends of the air supply flow channel are respectively connected to the air inlet and the air outlet 11. The air supply component can be a fan, such as a cross-flow fan, an axial flow fan, or a centrifugal fan.

[0061] The air supply component is arranged on the air supply flow channel, and is used to drive the air in the air supply flow channel to move toward the air outlet 11. When the air supply component is in operation, it can inhale air from the air inlet, flow through the air supply flow channel, and then output from the air outlet 11, so that the air outlet 11 can supply air outward.

[0062] The regulating component can be arranged on the air supply flow channel. The regulating component can be a temperature regulating component, a humidity regulating component or a purification component. The temperature regulating component is used to regulate the temperature of the air flow passing through, the humidity regulating component is used to regulate the humidity of the air flow passing through, and the purification component temperature regulating component is used to filter and purify the air flow passing through.

[0063] In this embodiment, the regulating component is a temperature regulating assembly, the temperature regulating assembly includes a first heat exchanger, and the air handling device 100 also includes a second heat exchanger and a compressor. The first heat exchanger is used to exchange heat with indoor air. The second heat exchanger is used to exchange heat with outdoor air. The compressor, the first heat exchanger and the second heat exchanger are connected to each other through a refrigerant pipeline. The compressor can drive the refrigerant to circulate between the first heat exchanger and the second heat exchanger, thereby realizing indoor and outdoor air heat exchange.

[0064] The first heat exchanger can be arranged on the air supply channel. The airflow exchanges heat with the first heat exchanger when flowing through the first heat exchanger. When the air handling device is in the heating mode, the first heat exchanger transfers heat to the airflow, so that the air outlet 11 can convey hot air to the outside. When the air handling device is in the cooling mode, the first heat exchanger transfers cold air to the airflow, so that the air outlet 11 can convey cold air to the outside.

[0065] like Figure 1 , 2 As shown, the air guide component 2 is arranged at the air outlet 11, and the air guide component 2 is used to disturb the wind sent out by the air supply component. The air guide component 2 serves as an air supply terminal device of the air handling equipment to regulate the wind feel of the air supply. The air guide component 2 includes a plurality of air guide components 21 and a connector 22. The connector 22 is configured as a strip, which may be a straight strip. The connector 22 is connected to the housing 1, and the extension direction of the connector 22 is the same as the extension direction of the air outlet 11. A plurality of air guide components 21 are connected to the connector 22, and are arranged in sequence along the connector 22.

[0066] like Figure 3 As shown, the air guide assembly 21 includes a driving device 211 and an air guide plate 212. The driving device 211 is respectively connected to the connecting member 22 and the air guide plate 212. The connecting member 22 and the air guide plate 212 are respectively arranged on opposite sides of the driving device 211. The air guide plate 212 is constructed as a sheet structure. One end of the air guide plate 212 is connected to the driving device 211. The connecting member 22 can be connected above the air outlet 11, and the air guide plate 212 is located at the front end of the air outlet 11. The plate surface of the air guide plate 212 is perpendicular to the extension direction of the air outlet 11. A plurality of air guide assemblies 21 are arranged in sequence along the extension direction of the air outlet 11, and the intervals between two adjacent air guide assemblies 21 can be the same. The air guide plate 212 is used at the air outlet 11 at the air supply end of the air handling equipment to regulate the wind feeling, thereby achieving the adjustment of the air outlet effect.

[0067] The driving device 211 includes a resonant actuator. The resonant actuator can drive the air guide plate 212 to resonate to achieve turbulence. In other words, the resonant actuator has the ability to drive the air guide plate 212 to resonate. When the air guide plate 212 resonates, turbulence can be achieved, thereby improving the wind feeling of the air outlet. The resonant actuator can be connected to one end of the air guide plate 212.

[0068] It is understandable that "resonance" is also called "resonance". When the frequency of the driving force is equal to the natural frequency of the system, the amplitude of the forced vibration of the system is the largest. This phenomenon is called resonance. When the frequency of the external force is the same as or very close to the natural oscillation frequency of the system, the amplitude of the oscillation system increases sharply under the action of periodic external forces. The frequency when resonance occurs is called "resonance frequency". In addition, "natural frequency" is also called "natural frequency". When an object vibrates freely, its displacement changes with time according to the sine or cosine law. The frequency of vibration has nothing to do with the initial conditions, but is only related to the inherent characteristics of the system (such as mass, shape, material, etc.). It is called the natural frequency, and its corresponding period is called the natural period. The natural frequency has nothing to do with external excitation and is an inherent property of the structure. Regardless of whether the structure is excited by the outside world, the natural frequency of the structure exists. It is just that when there is external excitation, the structure produces a vibration response according to the natural frequency. In addition, "free vibration" refers to the vibration that occurs in a mechanical system after the excitation or constraint is removed. The vibration is maintained only by its elastic restoring force. When there is damping, the vibration gradually decays. The frequency of free vibration is determined only by the physical properties of the system itself, which is called the natural frequency of the system.

[0069] In simple terms, when the excitation frequency of the resonant actuator is the same as or close to the natural frequency of the air guide component 2, the resonance effect is utilized, and the vibration generated by the air guide piece 212 is called resonance. The amplitude of the air guide piece 212 will increase sharply, so that the air guide piece 212 can more effectively disturb the flow and improve the wind feeling. The resonant frequency of the air guide component 2 is determined by the resonant actuator and the air guide piece 212. The size of the resonant actuator will affect the overall resonant frequency.

[0070] The resonant actuator is a piezoelectric material. A piezoelectric material is a device that uses the inverse piezoelectric effect of piezoelectric materials to convert electrical energy into mechanical energy output. When an alternating voltage is applied to the polarization direction of the piezoelectric material, the piezoelectric material will move in a certain direction (such as Figure 3 When the excitation frequency of the piezoelectric material is equal to or close to the natural frequency of the wind guide component 2, resonance (or resonance) occurs. At this time, the wind guide piece 212 (i.e. Figure 3 The amplitude of the vibration sheet (as shown) will increase sharply, so that the air guide sheet 212 can more effectively disturb the air flow and improve the wind feeling of the air outlet.

[0071] In some embodiments, the resonant frequency of the resonant actuator driving the air guide 212 to resonate is greater than or equal to 1 Hz. As a result, the air guide 212 can achieve a better turbulence effect and improve the wind feel of the air. However, the DC brushless motor and stepper motor used in general air conditioners cannot drive the air guide 212 to resonate with a resonant frequency greater than 1 Hz, and the air guide 212 cannot effectively turbulently improve the wind feel of the air.

[0072] The piezoelectric material piece may be a piezoelectric actuator or a piezoelectric sheet, for example, a piezoelectric ceramic. An alternating voltage is applied to the polarization direction of the piezoelectric material piece, and the piezoelectric material piece is deformed back and forth by utilizing the inverse piezoelectric effect of the piezoelectric material piece, thereby driving the air guide piece 212 to resonate and achieve the purpose of disturbing the flow. The piezoelectric sheet is a sheet-like body formed by a piezoelectric material, such as a piezoelectric film. The piezoelectric film is a flexible, lightweight, and highly tough plastic film that can be made into objects of various thicknesses and larger areas. It is a type of piezoelectric material piece, and the piezoelectric film can be driven by alternating current to produce an inverse piezoelectric effect, thereby driving the air guide piece 212 to resonate.

[0073] It is understandable that the vibration direction of the air guide piece 212 can be adjusted by changing the installation direction of the air guide piece 212 at the air outlet position, thereby performing turbulence in different directions. The control method of this embodiment can make the air handling device generate wind with different wind senses by controlling each air guide group to work in the same or different turbulence modes, thereby improving the user experience, and when there are many people in the space where the air handling device is located, different wind senses can be provided to different users, thereby providing air-conditioning wind to users in a more targeted manner.

[0074] In some embodiments, the resonant frequency of the resonant actuator driving the air guide plate 212 to resonate is greater than or equal to 1 Hz. Therefore, the air guide plate 212 can achieve a better turbulence effect and improve the wind feeling of the air outlet.

[0075] The resonant frequency of the resonant actuator driving the air guide piece 212 to resonate is 1 Hz-100 Hz. That is, a resonant actuator with a resonant frequency of 1 Hz-100 Hz (e.g., 1 Hz, 10 Hz, 20 Hz, 30 Hz, 40 Hz, 50 Hz, 60 Hz, 70 Hz, 80 Hz, 90 Hz, 100 Hz, etc.) can be selected as needed to drive the air guide piece 212 with a matching natural frequency to resonate, thereby meeting different requirements for airflow feel.

[0076] Furthermore, a resonant actuator with a resonant frequency of 10Hz-80Hz (e.g., 10Hz, 20Hz, 30Hz, 40Hz, 50Hz, 60Hz, 70Hz, 80Hz, etc.) can be selected to drive the air guide piece 212 with a matching natural frequency to resonate, thereby meeting different requirements for airflow feel. Of course, the present invention is not limited to this. In other embodiments, the resonant frequency of the resonant actuator driving the air guide piece 212 to resonate can also be greater than 100Hz, which will not be described in detail here.

[0077] The resonant actuator is a piezoelectric material. When an alternating voltage is applied in the polarization direction of the piezoelectric material, the piezoelectric material will undergo an inverse piezoelectric effect and produce periodic mechanical deformation in a certain direction. Resonance (or resonance) occurs only when the excitation frequency of the piezoelectric material is equal to or close to the natural frequency of the air guide component 2. At this time, the vibration amplitude of the air guide piece 212 will increase sharply, so that the air guide piece 212 can more effectively disturb the airflow and improve the wind feel of the air outlet.

[0078] The current detection component is electrically connected to the resonant actuator, and the current detection component can be electrically connected to the opposite ends of the resonant actuator in the polarization direction. The current detection component is used to detect the maximum feedback current generated by the positive piezoelectric effect of the resonant actuator. When the resonant actuator is deformed, polarization will occur, converting mechanical energy into electrical energy, and the piezoelectric material will produce positive piezoelectric effect and generate equal positive and negative charges at the opposite ends in the polarization direction. When the resonant actuator is repeatedly deformed, the feedback current can be measured at the opposite ends of the polarization direction of the resonant actuator, and the maximum value of the feedback current is the maximum feedback current. The current detection component can be an ammeter or an impact galvanometer. Ammeters or impact galvanometers have high accuracy in measuring small currents.

[0079] The control device is electrically connected to the air supply component, the air guide component 2, the current detection component and the adjustment component. The control device is electrically connected to the opposite ends of the resonant actuator in the polarization direction. The control device controls the vibration amplitude and vibration frequency of the resonant actuator driving the air guide plate 212 to swing by sending a drive signal to the resonant actuator. The drive signal can be a voltage pulse signal, and the voltage pulse signal can be an AC voltage signal.

[0080] The control device controls the vibration amplitude of the air guide plate 212 by controlling the voltage amplitude of the driving signal. When the air outlet speed of the air handling device is the same, the greater the absolute value of the voltage of the driving signal, the greater the amplitude at which the resonant actuator drives the air guide plate 212 to swing when receiving the driving signal.

[0081] The control device controls the vibration frequency of the air guide blade 212 by controlling the frequency of the driving signal. For example, when the driving signal is a voltage pulse signal, the resonant actuator receives a pulse of the driving signal and drives the air guide blade 212 to swing to one side once. The swing direction is determined by the positive and negative of the pulse. When the pulse is a positive pulse, the air guide blade 212 swings to one side, and when the pulse is a negative pulse, the air guide blade 212 swings to the other side.

[0082] The control device can control the resonant actuator to swing the air guide plate 212 at a preset vibration amplitude and a preset frequency by sending a driving signal to the resonant actuator, so as to realize that the air treatment device outputs wind with different wind sensations. When the air guide plate 212 vibrates at different vibration frequencies and / or different vibration amplitudes, the air guide component 2 can process the airflow output by the air outlet 11 to form wind with different wind sensations, and the wind with different wind sensations has different wind speeds and / or turbulence. The air treatment device outputs wind with different wind sensations in different air supply modes. For example, after processing the airflow output by the air outlet 11, the air guide component 2 can simulate wind with a natural wind sensation, wind without a wind sensation, and wind with a pulsating wind sensation.

[0083] like Figure 4 As shown, this embodiment also proposes a control method for air treatment equipment, which is implemented based on the above air treatment equipment. The control method includes:

[0084] Step S1: The control device receives a wind sense adjustment instruction and proceeds to step S2;

[0085] The air supply component is in operation so that the air outlet of the air handling device supplies air outward. The air volume of the air outlet can be freely set by the user. For example, the air handling device has multiple air volume gears, and different air volume gears correspond to different air volumes of the air outlet. The user can select one of the air volume gears to set the air volume of the air outlet.

[0086] The air volume of the air outlet can also be determined by the degree of difference between the preset parameters and the current environmental parameters. Environmental parameters are used to characterize the characteristics of the air in the environment. Depending on the function of the air handling device, the type of environmental parameters can be air temperature, humidity or pollutant concentration. The current environmental parameters can be obtained through different types of sensors. The preset parameters are the target values ​​for the air handling device to adjust the environmental parameters. After the air handling device has been running for a period of time, the environmental parameters of the inner room can be adjusted to the preset parameters. The preset parameters are usually set in advance by the user, and the user can set the preset parameters through the remote control, control panel or mobile terminal of the air handling device when starting the air handling device. The degree of difference between the preset parameters and the current environmental parameters is positively correlated with the air volume of the air outlet. The greater the degree of difference between the preset parameters and the current environmental parameters, the higher the control device drives the air supply component to operate with higher operating parameters, and the higher the air volume of the air outlet, the faster the air handling device can adjust the environmental parameters.

[0087] The user can send the wind sense adjustment instruction to the control device of the air treatment equipment through a remote control or a mobile terminal, and the mobile terminal can be a mobile phone, a tablet computer or a smart speaker. The wind sense adjustment instruction is used to instruct the resonant actuator to drive the air guide component 2 to resonate, so as to adjust the airflow output from the air outlet of the air treatment equipment to have a pulsating wind sense.

[0088] Step S2: the control device sends a driving signal to the resonant actuator, the voltage peak value and / or frequency of the driving signal changes periodically, and the frequency of the driving signal has a value range that is the resonant frequency range of the air guide plate;

[0089] The driving signal is an alternating voltage signal, preferably an alternating voltage signal. The frequency of the driving signal is equal to the resonant frequency of the air guide component 2. The air guide plate 212 usually has multiple resonant frequencies, which are arranged in order from small to large. The resonant frequencies of the air guide component 2 are respectively the first-order resonant frequency, the second-order resonant frequency, the third-order resonant frequency... and the n-th order resonant frequency. The air guide plate 212 is preferably an air guide plate 212 such that the first-order resonant frequency and the second-order resonant frequency of the air guide component 2 are both within a frequency of 100 Hz. The frequency of the driving signal is equal to any one of the first-order resonant frequency to the n-th order resonant frequency, and the initial frequency of the driving signal is preferably equal to the first-order resonant frequency.

[0090] The control device sends a driving signal to the resonant actuator. When the resonant actuator receives the driving signal, it deforms due to the inverse piezoelectric effect, and drives the air guide plate 212 to vibrate through its own deformation. The resonant actuator drives the air guide plate 212 to swing at the same frequency as the driving signal. The excitation frequency applied by the resonant actuator to the air guide plate 212 is equal to the resonant frequency of the air guide component 2, and the air guide plate 212 resonates. The initial driving signal includes a preset initial voltage and an initial frequency.

[0091] The voltage peak value and / or frequency of the driving signal varies periodically, and the variation period of the voltage peak value and / or frequency is greater than the pulse period of a single voltage pulse of the driving signal.

[0092] The voltage peak value of the driving signal is positively correlated with the deformation amplitude of the resonant actuator, and the deformation amplitude of the resonant actuator is positively correlated with the vibration amplitude of the air guide piece 212. When the voltage peak value of the driving signal changes periodically, the degree of disturbance of the airflow output from the air outlet by the air guide piece 212 changes periodically, that is, the resonance of the air guide piece 212 causes the wind speed and / or turbulence of the airflow to change periodically, and therefore, the softening degree of the airflow at the air outlet changes periodically, thereby simulating the wind with a pulsating wind feeling.

[0093] The frequency of the driving signal is the same as the excitation frequency of the resonant actuator on the air guide plate 212, that is, the same as the vibration frequency of the air guide plate 212. When the frequency of the driving signal changes periodically, that is, when the frequency of the driving signal switches between the resonant frequencies of different orders of the air guide component 2, the degree of turbulence of the airflow output from the air outlet by the air guide plate 212 changes periodically, that is, the resonance of the air guide component 2 causes the wind speed and / or turbulence of the airflow to change periodically, and therefore, the softening degree of the airflow at the air outlet changes periodically, thereby simulating the wind with a pulsating wind feeling.

[0094] Similarly, when the voltage peak and frequency of the driving signal change periodically synchronously, the degree of disturbance of the airflow output from the air outlet by the air guide plate 212 changes periodically, and the degree of softening of the airflow at the air outlet changes periodically, thereby simulating a pulsating wind feeling.

[0095] Therefore, the periodic change in the voltage peak value and / or frequency of the driving signal can create a pulsating wind feeling.

[0096] Step S3: the control device obtains the maximum feedback current generated by the positive piezoelectric effect of the resonant actuator, and sends a drive signal corresponding to the maximum feedback current to the resonant actuator, the voltage peak value and / or frequency of the drive signal changes periodically, and the maximum feedback current corresponding to the drive signal with different voltage peak value and / or frequency change rules is different. The value range of the frequency of the drive signal is the resonant frequency range of the air guide component 2, and the process re-enters step S3;

[0097] Since the driving signal drives the resonant actuator to deform repeatedly, a positive piezoelectric effect occurs when the resonant actuator deforms, generating a feedback current. The greater the deformation amplitude of the resonant actuator, the greater the feedback current, and there is a positive correlation between the deformation amplitude of the resonant actuator and the feedback current. The greater the wind speed at the air outlet 11, the greater the wind pressure borne by the air guide plate 212, the smaller the deformation amplitude of the air guide plate 212, the smaller the deformation amplitude of the resonant actuator, and the smaller the feedback current generated by the resonant actuator. Conversely, the smaller the wind speed at the air outlet 11, the greater the feedback current generated by the resonant actuator. There is a negative correlation between the feedback current and the wind speed at the air outlet 11, and the magnitude of the feedback current can reflect the wind speed at the air outlet 11 of the air treatment equipment.

[0098] Since the voltage peak value and / or frequency of the driving signal vary periodically, both the voltage peak value and the frequency of the driving signal will affect the feedback current. Specifically, both the voltage peak value and the frequency of the driving signal are positively correlated with the feedback current, and the feedback current will vary periodically due to the periodic variation of the voltage peak value and / or the frequency of the driving signal.

[0099] The control device can detect the maximum feedback current (maximum value of the feedback current) generated by the positive piezoelectric effect of the resonant actuator through the current detection component, and use the maximum feedback current to characterize the wind speed at the air outlet 11 of the air treatment device, which can eliminate the influence of the periodic change of the voltage peak and / or frequency of the driving signal, thereby accurately reflecting the wind speed at the air outlet 11 of the air treatment device. The maximum feedback current is negatively correlated with the wind speed at the air outlet 11 of the air treatment device. The larger the maximum feedback current, the smaller the wind speed at the air outlet 11 of the air treatment device.

[0100] There are multiple drive signals corresponding to the maximum feedback current, and the voltage peaks and / or frequency variation rules of the multiple drive signals are different. The maximum feedback current is pre-established with the drive signal, and the multiple drive signals correspond to different maximum feedback currents.

[0101] After obtaining the maximum feedback current, the control device obtains a driving signal corresponding to the maximum feedback current according to the maximum feedback current, and sends the driving signal to the resonant actuator to drive the air guide plate 212 to vibrate.

[0102] Since different maximum feedback currents correspond to driving signals with different voltage peaks and / or frequency variation rules, the air handling device can deliver pulsating wind with different variation rules according to the size of the maximum feedback current (i.e., the wind speed size at the air outlet 11 of the air handling device), which can create differentiated pulsating wind feelings.

[0103] The wind guide component 2 redistributes the wind field at the air outlet by resonating to create a pulsating wind. The wind guide component 2 has very little resistance to the airflow output from the air outlet and will not affect the air volume at the air outlet of the air treatment device. Winds of different air volumes can be processed to form pulsating wind. At the same time, since the rapid change of the drive signal input to the resonant actuator can cause the vibration amplitude or vibration frequency of the air guide plate 212 to change rapidly, by setting the voltage peak value and / or frequency of the drive signal to a rapid periodic change, the vibration amplitude and / or vibration frequency of the air guide plate 212 can also change rapidly periodically, and the air treatment device can create a pulsating wind with a short change period. The change period of the pulsating wind can reach the second level.

[0104] In an illustrative embodiment, the value range of the maximum feedback current includes multiple feedback current ranges. The feedback current ranges are continuous intervals. The feedback current ranges do not overlap each other. The multiple feedback current ranges are respectively corresponded to multiple drive signals in advance. The drive signal corresponding to the maximum feedback current is the drive signal corresponding to the feedback current range to which the maximum feedback current belongs.

[0105] For example, the multiple feedback current ranges include a first feedback current range, a second feedback current range, a third feedback current range, and a fourth feedback current range. The current values ​​of the first feedback current range, the second feedback current range, the third feedback current range, and the fourth feedback current range increase in sequence. The first feedback current range is less than or equal to a. The second feedback current range is greater than a and less than or equal to b, the third feedback current range is greater than b and less than or equal to c, and the fourth feedback current range is greater than c, where 0<a<b<c.

[0106] The plurality of drive signals include a first drive signal, a second drive signal, a third drive signal and a fourth drive signal. The voltage peak value and / or frequency of the first drive signal, the second drive signal, the third drive signal and the fourth drive signal all change periodically. The voltage peak value and / or frequency change rules of the first drive signal, the second drive signal, the third drive signal and the fourth drive signal are different. The first drive signal is transmitted to the resonant actuator to obtain a wind with a first pulsating wind feeling. The second drive signal is transmitted to the resonant actuator to obtain a wind with a second pulsating wind feeling. The third drive signal is transmitted to the resonant actuator to obtain a wind with a third pulsating wind feeling. The fourth drive signal is transmitted to the resonant actuator to obtain a wind with a fourth pulsating wind feeling. The first feedback current range corresponds to the first drive signal, the second feedback current range corresponds to the second drive signal, the third feedback current range corresponds to the third drive signal, and the third feedback current range corresponds to the fourth drive signal.

[0107] Step S3 includes steps S31 to S34.

[0108] Step S31: The control device obtains the maximum feedback current generated by the positive piezoelectric effect of the resonant actuator, and then proceeds to step S32;

[0109] Step S32: the control device determines the feedback current range to which the maximum feedback current belongs according to the maximum feedback current, and then proceeds to step S33;

[0110] After acquiring the maximum feedback current, the control device determines the feedback current range in which the maximum feedback current is located according to the value of the maximum feedback current.

[0111] Step S33: the control device obtains a driving signal corresponding to the feedback current range to which the maximum feedback current belongs, and then proceeds to step S34;

[0112] The control device can obtain a driving signal corresponding to the feedback current range to which the maximum feedback current belongs according to the corresponding relationship between the preset feedback current range and the driving signal and the feedback current range to which the maximum feedback current belongs.

[0113] Step S34: the control device sends a drive signal corresponding to the feedback current range to which the maximum feedback current belongs to the resonant actuator so that the resonant actuator drives the air guide plate 212 to resonate, and the voltage peak value and / or frequency of the drive signal changes periodically.

[0114] A driving signal corresponding to the feedback current range to which the maximum feedback current belongs is sent to the resonant actuator, and the driving signal is transmitted to the resonant actuator so as to obtain a pulsating wind feeling corresponding to the driving signal.

[0115] For example, when the maximum feedback current belongs to the first feedback current range, the control device outputs a first drive signal, and the air treatment equipment outputs wind with a first pulsating wind sense; when the maximum feedback current belongs to the second feedback current range, the control device outputs a second drive signal, and the air treatment equipment outputs wind with a second pulsating wind sense; when the maximum feedback current belongs to the third feedback current range, the control device outputs a third drive signal, and the air treatment equipment outputs wind with a third pulsating wind sense; when the maximum feedback current belongs to the fourth feedback current range, the control device outputs a fourth drive signal, and the air treatment equipment outputs wind with a fourth pulsating wind sense.

[0116] In some embodiments, in step S2, the driving signal sent to the resonant actuator is one of a plurality of driving signals corresponding to the maximum feedback current.

[0117] For example, the driving signal sent to the resonant actuator for the first time is one of the first driving signal, the second driving signal, the third driving signal, and the fourth driving signal. The driving signal sent to the resonant actuator for the first time is preferably the first driving signal.

[0118] Thus, if the driving signal corresponding to the maximum feedback current sent to the resonant actuator in step S3 is the same as the driving signal sent to the resonant actuator in step S2, there is no need to adjust the driving signal, thereby reducing the number of times the driving signal is adjusted.

[0119] In an illustrative embodiment, each drive signal includes multiple preset drive signals. The number of preset drive signals in a single drive signal may be two, three, four or five. Multiple preset drive signals are circulated in sequence to form a drive signal. Each preset drive signal is an alternating voltage signal, which may be an alternating voltage signal. Each preset drive signal includes multiple identical voltage pulses. The voltage peak value and frequency of each preset drive signal will not change. The frequency value range of the preset drive signal is equal to the resonant frequency range of the air guide component 2. The voltage peak value and / or frequency of any two preset drive signals in each drive signal are different, that is, at least one of the voltage peak value and frequency between different preset drive signals is different.

[0120] In any two drive signals, all preset drive signals in one drive signal are not completely the same as all preset drive signals in the other drive signal. Preferably, in any two drive signals, all preset drive signals in one drive signal are completely different from all preset drive signals in the other drive signal.

[0121] All preset drive signals of any two drive signals are not exactly the same. The number of preset drive signals in one drive signal may be different from the number of preset drive signals in another drive signal; or the frequency and / or voltage peak value of at least one preset drive signal in one drive signal may be different from any preset drive signal in the other drive signal.

[0122] In a single driving signal, multiple preset driving signals may have the same voltage peak value, but the frequencies of the multiple preset driving signals are respectively equal to the resonance frequencies of different orders of the air guide component 2 .

[0123] In a single driving signal, multiple preset driving signals may also have different voltage peak values, but the frequencies of the multiple driving signals are all the same order of resonant frequencies of the air guide component 2 .

[0124] In a single driving signal, the multiple preset driving signals may also have different voltage peak values, and the frequencies of the multiple preset driving signals are respectively equal to the resonance frequencies of different orders of the air guide component 2 .

[0125] In step S33, a driving signal corresponding to the maximum feedback current is sent to the resonant actuator, including: cyclically sending a plurality of preset driving signals corresponding to the feedback current range to which the maximum feedback current belongs to the resonant actuator.

[0126] Multiple preset drive signals of the drive signal are cyclically sent to the resonant actuator, and in each cycle of the preset drive signal, the multiple preset drive signals are sequentially sent to the resonant actuator in the same order. Since at least one of the voltage peak value and the frequency between different preset drive signals is different, the resonant actuator drives the air guide plate 212 to vibrate with different vibration amplitudes and / or different vibration frequencies after receiving different preset drive signals, so that the air treatment device outputs wind with different softening degrees in one cycle.

[0127] Since the preset driving signals corresponding to the driving signals in different feedback current ranges are not exactly the same, different driving signals correspond to pulsating wind sensations with different changing patterns, and thus the air handling equipment can output pulsating wind sensations with different changing patterns at different air volumes, thereby creating differentiated pulsating wind sensations.

[0128] In some embodiments, the first driving signal includes a first preset driving signal, a second preset driving signal, and a third preset driving signal.

[0129] The control device can cyclically send a first preset drive signal, a second preset drive signal, and a third preset drive signal of the first drive signal to the resonant actuator.

[0130] The voltage peak values ​​of at least two of the first preset drive signal, the second preset drive signal, and the third preset drive signal are different, and / or the frequencies of at least two of the first preset drive signal, the second preset drive signal, and the third preset drive signal are different, and / or the signal durations of at least two of the first preset drive signal, the second preset drive signal, and the third preset drive signal are different.

[0131] The voltage peak values ​​of the first preset drive signal, the second preset drive signal, and the third preset drive signal may increase sequentially, the frequencies of the first preset drive signal, the second preset drive signal, and the third preset drive signal may increase sequentially, and the signal durations of the first preset drive signal, the second preset drive signal, and the third preset drive signal may increase sequentially.

[0132] The second driving signal includes a fourth preset driving signal, a fifth preset driving signal, a sixth preset driving signal, and a seventh preset driving signal.

[0133] The control device can cyclically send a fourth preset drive signal, a fifth preset drive signal, a sixth preset drive signal, and a seventh preset drive signal of the second drive signal to the resonant actuator.

[0134] The voltage peak values ​​of at least two of the fourth preset drive signal, the fifth preset drive signal, the sixth preset drive signal, and the seventh preset drive signal are different, and / or the frequencies of at least two of the fourth preset drive signal, the fifth preset drive signal, the sixth preset drive signal, and the seventh preset drive signal are different, and / or the signal durations of at least two of the fourth preset drive signal, the fifth preset drive signal, the sixth preset drive signal, and the seventh preset drive signal are different.

[0135] The voltage peak values ​​of the fourth preset drive signal, the fifth preset drive signal, the sixth preset drive signal, and the seventh preset drive signal may decrease in sequence, the frequencies of the fourth preset drive signal, the fifth preset drive signal, the sixth preset drive signal, and the seventh preset drive signal may decrease in sequence, and the signal durations of the fourth preset drive signal, the fifth preset drive signal, the sixth preset drive signal, and the seventh preset drive signal may decrease in sequence.

[0136] Among them, the frequency, voltage peak value and / or signal duration of at least one of the first preset drive signal, the second preset drive signal and the third preset drive signal of the first drive signal is different from the frequency, voltage peak value and / or signal duration of any one of the fourth preset drive signal, the fifth preset drive signal, the sixth preset drive signal and the seventh preset drive signal of the second drive signal.

[0137] The third driving signal includes an eighth preset driving signal, a ninth preset driving signal, and a tenth preset driving signal.

[0138] The control device can cyclically send the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal to the resonant actuator.

[0139] The voltage peak values ​​of at least two of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal are different, and / or the frequencies of at least two of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal are different, and / or the signal durations of at least two of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal are different.

[0140] The voltage peak values ​​of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal may be first small and then increase, the frequencies of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal may be first small and then increase, and the signal durations of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal may be first small and then increase.

[0141] Among them, the frequency, voltage peak value and / or signal duration of at least one preset drive signal among the first preset drive signal, the second preset drive signal and the third preset drive signal of the first drive signal are different from the frequency, voltage peak value and / or signal duration of any one preset drive signal among the eighth preset drive signal, the ninth preset drive signal and the tenth preset drive signal of the third drive signal.

[0142] The frequency, voltage peak value and / or signal duration of at least one of the fourth preset drive signal, the fifth preset drive signal, the sixth preset drive signal and the seventh preset drive signal of the second drive signal is different from the frequency, voltage peak value and / or signal duration of any one of the eighth preset drive signal, the ninth preset drive signal and the tenth preset drive signal of the third drive signal.

[0143] The third driving signal includes an eighth preset driving signal, a ninth preset driving signal, and a tenth preset driving signal.

[0144] The control device can cyclically send the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal to the resonant actuator.

[0145] The voltage peak values ​​of at least two of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal are different, and / or the frequencies of at least two of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal are different, and / or the signal durations of at least two of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal are different.

[0146] The voltage peak values ​​of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal may be first small and then increase, the frequencies of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal may be first small and then increase, and the signal durations of the eighth preset drive signal, the ninth preset drive signal, and the tenth preset drive signal may be first small and then increase.

[0147] Among them, the frequency, voltage peak value and / or signal duration of at least one preset drive signal among the first preset drive signal, the second preset drive signal and the third preset drive signal of the first drive signal are different from the frequency, voltage peak value and / or signal duration of any one preset drive signal among the eighth preset drive signal, the ninth preset drive signal and the tenth preset drive signal of the third drive signal.

[0148] The frequency, voltage peak value and / or signal duration of at least one of the fourth preset drive signal, the fifth preset drive signal, the sixth preset drive signal and the seventh preset drive signal of the second drive signal is different from the frequency, voltage peak value and / or signal duration of any one of the eighth preset drive signal, the ninth preset drive signal and the tenth preset drive signal of the third drive signal.

[0149] The fourth driving signal includes an eleventh preset driving signal and a twelfth preset driving signal.

[0150] The control device can cyclically send the eleventh preset driving signal and the twelfth preset driving signal to the resonant actuator.

[0151] The voltage peak values ​​of the eleventh preset driving signal and the twelfth preset driving signal are different, and / or the frequencies of the eleventh preset driving signal and the twelfth preset driving signal are different, and / or the signal durations of the eleventh preset driving signal and the twelfth preset driving signal are different.

[0152] In an exemplary embodiment, in each driving signal, the voltage peak values ​​of at least two preset driving signals are different. The voltage peak values ​​of different preset driving signals may be different.

[0153] Among the voltage peaks of all preset driving signals of each driving signal, the maximum voltage peak is more than twice the minimum voltage peak, and the maximum voltage peak is preferably 2 to 3 times the minimum voltage peak.

[0154] Since there is a positive correlation between the voltage peak value of the preset driving signal and the vibration amplitude of the air guide plate 212, when the maximum voltage peak value is more than twice the minimum voltage peak value, when the preset driving signal of the maximum voltage peak value and the preset driving signal of the minimum voltage peak value are respectively transmitted to the resonant actuator, the difference in the vibration amplitude of the air guide plate 212 is large enough so that the user can clearly feel the large difference in the degree of softening of the wind, thereby making the switching between strong and weak wind more obvious, and the pulsation of the wind is stronger, thereby enhancing the user experience.

[0155] In an exemplary embodiment, among all preset driving signals of each driving signal, the preset driving signal with a larger frequency has a larger voltage peak value. The frequency of the preset driving signal may be positively correlated with the voltage peak value of the preset driving signal.

[0156] The smaller the frequency of the preset driving signal, the smaller its voltage peak value is. When the preset driving signal drives the resonant actuator to drive the air guide plate 212 to vibrate, the vibration amplitude and vibration frequency of the air guide plate 212 are smaller. Since the smaller the vibration amplitude of the air guide plate 212, the smaller the degree of wind softening, and the smaller the frequency of the air guide plate 212, the smaller the degree of wind softening, the smaller the vibration amplitude and vibration frequency of the air guide plate 212, the smaller the degree of wind softening.

[0157] The larger the frequency of the preset driving signal, the larger its voltage peak value. When the preset driving signal drives the resonant actuator to drive the air guide plate 212 to vibrate, the vibration amplitude and vibration frequency of the air guide plate 212 are larger. Since the larger the vibration amplitude of the air guide plate 212, the greater the degree of wind softening, and the larger the frequency of the air guide plate 212, the greater the degree of wind softening, the larger the vibration amplitude and vibration frequency of the air guide plate 212, the greater the degree of wind softening.

[0158] In this way, the wind softening degrees corresponding to the preset driving signals with relatively small frequency and voltage peak values ​​and the preset driving signals with relatively large frequency and voltage peak values ​​are more different, making the switching between strong and weak winds more obvious and the pulsation of the wind stronger.

[0159] In an exemplary embodiment, the signal duration of each preset driving signal is 2 to 20 seconds. The signal duration of each preset driving signal is preferably 3 to 5 seconds.

[0160] When a preset driving signal is continuously sent to the resonant actuator, the sending duration of the preset driving signal is the signal duration of the preset driving signal. The signal duration of each preset driving signal is equal to the duration of the preset driving signal driving the resonant actuator to drive the air guide plate 212 to vibrate.

[0161] The signal duration of each preset driving signal is set to be more than 2 seconds, and the duration of each preset driving signal driving the resonant actuator to drive the air guide plate 212 to vibrate is more than 2 seconds, so that the user can clearly distinguish the different degrees of wind softening corresponding to two adjacent preset driving signals. The boundaries of the wind softening degrees corresponding to different preset driving signals are clearer.

[0162] The signal duration of each preset driving signal is set to be less than 20s. Then, each preset driving signal drives the resonant actuator to drive the air guide plate 212 to vibrate for less than 20s. The wind output by the air treatment equipment will be maintained at the same softening degree for no longer than 20s, and the user can clearly feel the fluctuation of the wind softening degree in a relatively short period of time.

[0163] In an exemplary embodiment, the signal duration of each preset driving signal is the same, for example, the signal duration of each preset driving signal may be 3 seconds.

[0164] The signal durations of the preset driving signals are all the same, and the softening degree of the wind output by the air handling device can be switched evenly in the time dimension, forming a pulsating wind feeling with a more regular softening degree fluctuation.

[0165] In an exemplary embodiment, in each driving signal, at least two preset driving signals have different signal durations.

[0166] For example, the signal durations of the plurality of preset driving signals are all different; or, the signal durations of a portion of the preset driving signals are different, and the signal durations of another portion of the preset driving signals are different.

[0167] The signal durations of the preset driving signals are different, and the softening degree of the wind output by the air handling device is switched unevenly in the time dimension, forming a pulsating wind feeling with irregular fluctuations in the softening degree.

[0168] In an exemplary embodiment, at least two preset drive signals in one drive signal have different frequencies. The frequencies of each preset drive signal may be different. Among the multiple preset drive signals, the preset drive signal with a higher frequency has a longer signal duration.

[0169] The higher the frequency of the preset driving signal, the higher the frequency at which the preset driving signal drives the resonant actuator to vibrate the air guide plate 212, and the higher the softening degree of the airflow. Since the higher the frequency of the preset driving signal, the longer the signal duration, the higher the softening degree of the airflow, the longer the airflow maintains a high softening degree, and the better the user experience.

[0170] In some embodiments, a portion of a driving signal presets a frequency of the driving signal equal to a first resonant frequency of the air guide plate 212 , and another portion of the driving signal presets a frequency of the driving signal equal to a second resonant frequency of the air guide plate 212 .

[0171] When the frequency of the preset driving signal is equal to the first resonant frequency of the air guide plate 212, the signal duration is 7 to 15 seconds, and when the frequency of the preset driving signal is equal to the driving signal of the second resonant frequency, the signal duration is 3 to 5 seconds. The order of the first resonant frequency may be higher than the order of the second resonant frequency.

[0172] In an illustrative embodiment, the control method further includes a step S0 before the step S1 .

[0173] Step S0: The control device receives the user's settings for the correspondence between the drive signal and the maximum feedback current, the preset number of drive signals for each drive signal, the arrangement order of the preset drive signals for each drive signal, the signal duration of each preset drive signal, the voltage peak value of each preset drive signal and / or the frequency of each preset drive signal.

[0174] The user can use the mobile terminal to set the corresponding relationship between the drive signal and the maximum feedback current, the preset number of drive signals for each drive signal, the arrangement order of the preset drive signals for each drive signal, the signal duration of each preset drive signal, the voltage peak value of each preset drive signal and / or the frequency of each preset drive signal. The mobile terminal sends the user's settings to the control device of the air treatment equipment.

[0175] In step S3, the driving signal sent by the control device to the resonant actuator is the driving signal set by the user.

[0176] Users can pre-set multiple drive signals and freely create personalized pulsating wind to enhance user experience.

[0177] In an illustrative embodiment, the smaller the maximum feedback current, the larger the average voltage peak value and / or the higher the average frequency of the corresponding driving signal. The smaller the maximum feedback current, the greater the wind speed, the greater the wind pressure on the air guide blade 212 caused by the wind pressure, and the smaller the vibration amplitude of the air guide blade 212. At this time, it is necessary to increase the average voltage peak value and / or the average frequency of the driving signal to compensate for the vibration amplitude of the air guide blade 212 to maintain a better turbulence effect.

[0178] In an exemplary embodiment, each driving signal is sent to the resonant actuator so that the theoretical maximum feedback current generated by the positive piezoelectric effect of the resonant actuator is the same.

[0179] For example, each driving signal includes the same preset driving signal, the voltage peak value of the preset driving signal is the largest voltage peak value among all preset driving signals in each driving signal, and the frequency of the preset driving signal is the largest frequency among all preset driving signals in each driving signal.

[0180] In this way, different driving signals sent to the resonant actuator can make the theoretical maximum feedback current generated by the positive piezoelectric effect of the resonant actuator (for example, the feedback current measured when the wind speed is 0) the same. Therefore, even if different driving signals are sent to the resonant actuator, the maximum feedback current measured by the current detection component can still accurately characterize the wind speed at the outlet.

[0181] In an exemplary embodiment of the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the control method described above in this specification is stored. In some possible implementations, each aspect of the present invention can also be implemented in the form of a program product, which includes a program code, and when the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps according to various exemplary embodiments of the present invention described in the above "Exemplary Method" section of this specification.

[0182] A program product for implementing the above control method according to an embodiment of the present invention may adopt a portable compact disk read-only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, apparatus, or device.

[0183] The program product may use any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0184] Computer readable signal media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Readable signal media may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0185] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0186] Program code for performing the operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the insurance customer computing device, partially on the insurance customer device, as a separate software package, partially on the insurance customer computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the insurance customer computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., through the Internet using an Internet service provider).

[0187] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0188] In addition, although each step of the method in the present disclosure is described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0189] Through the description of the above implementation methods, it is easy for those skilled in the art to understand that the example implementation methods described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation method of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including a number of instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the control method according to the implementation method of the present disclosure. The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A control method for air handling equipment, characterized in that: The air outlet of the air handling device is provided with an air guide component, the air guide component includes one or a plurality of air guide plates arranged at intervals, the air guide component also includes a driving device, the driving device includes a resonant actuator, the resonant actuator is a piezoelectric material, and the resonant actuator can drive the air guide plate to resonate to achieve turbulence; the control method includes: sending a drive signal to the resonant actuator; Acquiring a maximum feedback current generated by a positive piezoelectric effect of the resonant actuator, and sending a driving signal corresponding to the maximum feedback current to the resonant actuator; Among them, the voltage peak and / or frequency of each driving signal changes periodically, and the maximum feedback current corresponding to driving signals with different voltage peak and / or frequency change patterns is different. The frequency range of each driving signal is the resonant frequency range of the air guide component.

2. The control method according to claim 1, characterized in that: The value range of the maximum feedback current includes multiple feedback current ranges, and the multiple feedback current ranges correspond to multiple different driving signals respectively; The driving signal corresponding to the maximum feedback current is a driving signal corresponding to a feedback current range to which the maximum feedback current belongs.

3. The control method according to claim 1 or 2, characterized in that: The driving signal includes a plurality of preset driving signals, and the voltage peak values ​​and / or frequencies of any two preset driving signals are different; The preset driving signals in any two driving signals are not completely the same; The step of sending a driving signal corresponding to the maximum feedback current to the resonant actuator includes: A plurality of preset driving signals corresponding to the maximum feedback current are cyclically sent to the resonant actuator.

4. The control method according to claim 3, characterized in that: In each driving signal, the voltage peak values ​​of all the preset driving signals are different from each other, and the frequencies of all the preset driving signals are the same; or In each driving signal, the voltage peak values ​​of all the preset driving signals are the same, and the frequencies of all the preset driving signals are different from each other; or In each driving signal, the voltage peak values ​​of all the preset driving signals are different from each other, and the frequencies of all the preset driving signals are different from each other.

5. The control method according to claim 3, characterized in that: In each driving signal, a preset driving signal with a greater frequency has a greater voltage peak value.

6. The control method according to claim 3, characterized in that: In each driving signal, voltage peak values ​​of at least two preset driving signals are different; Among the voltage peak values ​​of all preset driving signals of each driving signal, the maximum voltage peak value is more than twice the minimum voltage peak value.

7. The control method according to claim 3, characterized in that: The signal duration of each preset driving signal is 2 to 20 seconds.

8. The control method according to claim 3, characterized in that: In each driving signal, the signal duration of each preset driving signal is the same; or, In each driving signal, at least two preset driving signals have different signal durations.

9. The control method according to claim 3, characterized in that: In each driving signal, a preset driving signal with a higher frequency has a longer signal duration; or In each driving signal, a preset driving signal with a higher frequency has a shorter signal duration; or In each driving signal, at least two preset driving signals with different frequencies have the same signal duration.

10. The control method according to claim 9, characterized in that: The signal duration of the preset driving signal having the first resonant frequency of the air guide plate is 7 to 15 seconds; and / or The signal duration of the preset driving signal with the frequency of the second resonant frequency is 3 to 5 seconds, and the order of the first resonant frequency is higher than the order of the second resonant frequency.

11. The control method according to any one of claims 1 to 10, characterized in that: The smaller the maximum feedback current is, the larger the average voltage peak value or the higher the average frequency of the corresponding driving signal is.

12. The control method according to claim 3, characterized in that: Before sending the driving signal to the resonant actuator, the control method further includes: Receive user settings for the correspondence between the drive signal and the maximum feedback current, the preset drive signal quantity of each drive signal, the arrangement order of the preset drive signals of each drive signal, the signal duration of each preset drive signal, the voltage peak value of each preset drive signal and / or the frequency of each preset drive signal.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the air treatment equipment according to any one of claims 1 to 12 is implemented.

14. An air treatment device, characterized in that: include: The housing is provided with an air supply channel and an air outlet arranged at one end of the air supply channel; An air guide component is arranged at the air outlet, comprising one or a plurality of air guide plates arranged at intervals and a driving device, wherein the driving device comprises a resonant actuator, the resonant actuator is a piezoelectric material, and the resonant actuator can drive the air guide plates to resonate to achieve turbulence; A current detection component, electrically connected to the resonant actuator, for detecting a maximum feedback current generated by a positive piezoelectric effect of the resonant actuator; as well as A control device, electrically connected to the resonant actuator, is configured to execute the control method for the air treatment equipment according to any one of claims 1-12.

Images