Streaming sterilization device, control method and device thereof, equipment and storage medium

Abstract

The invention discloses a streamer sterilization device, a control method and device thereof, equipment and a storage medium. The streamer sterilization device comprises a power supply driving circuit and a plasma generator which works based on a driving power supply output by the power supply driving circuit, the power supply driving circuit comprises a square wave circuit used for outputting a high-voltage square wave signal and a sine wave circuit used for outputting a sine wave signal. Wherein the high-voltage square wave signal output by the square wave circuit and the sine wave signal output by the sine wave circuit are superposed and then are supplied to the plasma generator. Thus, power is supplied to the plasma generator after the sine wave signal is superposed on the high-voltage pulse square wave signal, so that in the air ionization process, a large number of positive ions and negative ions can be generated, a large number of high-oxidability molecules and free radicals can also be generated, and the air sterilization effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of air purification, and in particular to a streamer sterilization device and a control method, device, equipment and storage medium thereof. Background Art

[0002] In the related art, in order to enhance the air purification effect indoors and in air-conditioning ducts, there is a streamer sterilization device based on dielectric barrier discharge (DBD). The device refers to a dielectric barrier discharge driven by a high-voltage square wave. During the discharge process, the air will be ionized to generate a large number of positive ions and negative ions, and a large number of positive ions and negative ions will be used to produce electrochemical reactions, which will quickly degrade toxic and harmful gases in the air, achieving sterilization, deodorization and other effects, thereby achieving the purpose of streamer sterilization.

[0003] However, the above scheme only utilizes positive ions and negative ions for sterilization, the sterilization factor is single, the sterilization effect is poor, and comprehensive and efficient sterilization cannot be achieved. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a streamer sterilization device and a control method, device, equipment and storage medium thereof, aiming to enhance the sterilization effect of air.

[0005] The technical solution of the embodiment of the present invention is achieved as follows:

[0006] In a first aspect, an embodiment of the present application provides a streamer sterilization device, comprising: a power drive circuit and a plasma generator that operates based on a drive power output by the power drive circuit;

[0007] The power drive circuit includes: a square wave circuit for outputting a high-voltage square wave signal and a sine wave circuit for outputting a sine wave signal;

[0008] The high-voltage square wave signal output by the square wave circuit is superimposed on the sine wave signal output by the sine wave circuit to supply power to the plasma generator.

[0009] In some embodiments, the sine wave circuit comprises:

[0010] A shaping amplifier circuit, the shaping amplifier circuit is used to shape and amplify the first square wave signal, the shaping amplifier circuit includes a first shaping amplifier circuit and a second shaping amplifier circuit, the input end of the first shaping amplifier circuit is connected to the first square wave signal, and the output end of the first shaping amplifier circuit is connected to the input end of the second shaping amplifier circuit;

[0011] A boost circuit, the input end of which is connected to the output end of the second shaping amplifier circuit, and is used to amplify and output the initial sinusoidal wave signal output by the second shaping amplifier circuit.

[0012] In some embodiments, the square wave circuit is connected to the sine wave circuit and the plasma generator, and the square wave circuit includes: a self-excited oscillation circuit, a square wave generator, a resonant circuit, and a voltage doubling circuit;

[0013] The self-excited oscillation circuit is used to generate an AC oscillation signal, and the square wave generator is used to generate a second square wave signal;

[0014] The resonant circuit includes a transformer, a switch circuit and a first output terminal, the switch circuit controls the primary winding of the transformer to access the AC oscillation signal based on the second square wave signal, the secondary winding of the transformer outputs a voltage signal after boost conversion, and the first output terminal is used to output the voltage signal after boost conversion;

[0015] The voltage doubler circuit includes a second output terminal, and the voltage doubler circuit is located between the resonant circuit and the plasma generator. The voltage signal after the boost conversion is output as the high-voltage square wave signal after voltage doublement and rectification by the voltage doubler circuit. The second output terminal is used to output the high-voltage square wave signal to the plasma generator.

[0016] In some embodiments, one end of the boost circuit is connected to the first output terminal and then grounded, and the second output terminal is connected to the other end of the boost circuit and the positive electrode of the plasma generator.

[0017] In some embodiments, one end of the boost circuit is grounded, the first output terminal is connected to the other end of the boost circuit and the negative electrode of the plasma generator, and the second output terminal is connected to the positive electrode of the plasma generator and then grounded.

[0018] In a second aspect, the present application embodiment provides a control method of the streamer sterilization device described in the first aspect of the application embodiment, comprising:

[0019] Obtaining the required number of bactericidal factors and a first frequency, where the first frequency is the frequency of the current sinusoidal wave signal;

[0020] Determine a second frequency based on the number of the bactericidal factors and a correspondence between the preset number of bactericidal factors and the frequency of the sine wave signal, wherein the first frequency is the frequency of the sine wave signal corresponding to the required number of bactericidal factors;

[0021] The first frequency is adjusted to the second frequency.

[0022] In some embodiments, the frequency of the sine wave signal is determined by the frequency of a first square wave signal input by the sine wave circuit, and adjusting the first frequency to the second frequency includes:

[0023] Based on the adjustment of the frequency of the first square wave signal, the first frequency is adjusted to the second frequency.

[0024] In a third aspect, the embodiment of the present application provides a streamer sterilization device according to the first aspect of the embodiment of the present application, comprising:

[0025] An acquisition module, used to acquire the quantity of the required bactericidal factor and a first frequency, where the first frequency is the frequency of the current sinusoidal wave signal;

[0026] A determination module, configured to determine a second frequency based on the number of the bactericidal factors and a preset correspondence between the number of bactericidal factors and the frequency of the sine wave signal, wherein the first frequency is the frequency of the sine wave signal corresponding to the number of the required bactericidal factors;

[0027] The adjusting module is used to adjust the first frequency to the second frequency. In a fourth aspect, the embodiment of the present application provides an electronic device, including: the streamer sterilization device described in the third aspect of the embodiment of the present application.

[0028] In some embodiments, the electronic device is an air conditioner.

[0029] In a fifth aspect, an embodiment of the present application provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in the second aspect of the embodiment of the present application are implemented.

[0030] The technical solution provided by the embodiment of the present invention is that the streamer sterilization device includes: a power drive circuit and a plasma generator that works based on the drive power output by the power drive circuit; the power drive circuit includes: a square wave circuit for outputting a high-voltage square wave signal and a sine wave circuit for outputting a sine wave signal; wherein the high-voltage square wave signal output by the square wave circuit is superimposed with the sine wave signal output by the sine wave circuit and then supplies power to the plasma generator. In this way, by superimposing a sine wave signal on the high-voltage square wave signal and then supplying power to the plasma generator, the electric field generated after the waveforms are superimposed can provide more energy, so that in the process of ionizing the air, not only a large number of positive ions and negative ions can be generated, but also a large number of highly oxidizing molecules and free radicals can be generated, thereby improving the sterilization effect on the air and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the streamer sterilization device according to an embodiment of the present application;

[0032] Figure 2 This is a waveform diagram of a square wave signal superimposed on a sine wave signal in an embodiment of the present application;

[0033] Figure 3 A waveform diagram of a negative square wave signal superimposed on a sine wave signal in an embodiment of the present application;

[0034] Figure 4 This is a schematic diagram of a module of a streamer sterilization device according to an embodiment of the present application;

[0035] Figure 5 This is a circuit diagram of a square wave signal superimposed on a sine wave signal in an application example of the present application;

[0036] Figure 6 This is a circuit diagram of a negative square wave signal superimposed on a sine wave signal in an application example of the present application;

[0037] Figure 7 This is a flow chart of a control method of a streamer sterilization device according to an embodiment of the present application;

[0038] Figure 8 This is a flow chart of a control method of a streamer sterilization device in an application example of the present application;

[0039] Fig. 9 A schematic diagram of a control device of a control method for a streamer sterilization device in an embodiment of the present application;

[0040] Fig.10 Schematic diagram of the structure of the air conditioner in the embodiment of the present application. DETAILED DESCRIPTION

[0041] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0043] The present application embodiment provides a streamer sterilization device, such as Figure 1 As shown, the streamer sterilization device includes: a power drive circuit and a plasma generator that works based on the drive power output by the power drive circuit;

[0044] The power drive circuit includes: a square wave circuit for outputting a high-voltage square wave signal and a sine wave circuit for outputting a sine wave signal;

[0045] The high-voltage square wave signal output by the square wave circuit is superimposed with the sine wave signal output by the sine wave circuit to supply power to the plasma generator.

[0046] Here, the power drive circuit is used to convert the low voltage input power into a high voltage square wave signal and a sine wave signal output, so that the plasma generator works under the drive of the high voltage square wave signal and the sine wave signal. The high voltage square wave signal here may include a negative square wave signal and / or a positive square wave signal. When the high voltage square wave signal and the sine wave signal are superimposed together, the overall shape of the output signal is the sum of the shapes of the two waveforms. The waveform output by the power drive circuit can be: a positive square wave signal superimposed on a sine wave signal or a negative square wave signal superimposed on a sine wave signal.

[0047] It can be understood that the plasma generator includes a positive electrode and a negative electrode that are spaced apart, and a high-voltage square wave signal and a sine wave signal can be applied to the plasma generator.

[0048] The waveform diagram of the square wave signal superimposed on the sine wave signal is as follows Figure 2 As shown, a sine wave signal is loaded on the negative square wave signal. Figure 3 shown.

[0049] It can be understood that when high-voltage square wave signals and sinusoidal wave signals are superimposed and input at both ends of the plasma generator, the electric field generated after the waveforms are superimposed can provide more energy, and free electrons will be generated. The free electrons gain energy under the action of the external electric field, and constantly collide with the surrounding gas molecules, causing the gas molecules to be excited and ionized, thereby generating more electrons, causing electron avalanche, causing some atoms or molecules to be excited, thereby forming active particles such as ions and free radicals that cannot be formed under normal conditions.

[0050] After discharge, a large number of active particles such as free radicals have strong reactivity, and toxic and harmful gases in the air and living viruses, bacteria, etc. undergo redox reactions to generate carbon dioxide and ozone, thereby purifying the air.

[0051] It can be seen that by superimposing a sinusoidal wave signal on the high-voltage square wave signal and then supplying power to the plasma generator, in the process of ionizing the air, not only a large number of positive ions and negative ions can be generated, but also a large number of highly oxidizing molecules and free radicals can be generated, thereby improving the sterilization effect on the air and enhancing the user experience.

[0052] Based on this, the present application embodiment provides a module diagram of a streamer sterilization device, such as Figure 4 As shown, the streamer sterilization device includes a square wave circuit, a sine wave circuit and a plasma generator.

[0053] Exemplarily, the sine wave circuit comprises:

[0054] A shaping amplifier circuit, the shaping amplifier circuit is used to shape and amplify the first square wave signal, the shaping amplifier circuit includes a first shaping amplifier circuit and a second shaping amplifier circuit, the input end of the first shaping amplifier circuit is connected to the first square wave signal, and the output end of the first shaping amplifier circuit is connected to the input end of the second shaping amplifier circuit;

[0055] A boost circuit, the input end of which is connected to the output end of the second shaping amplifier circuit, is used to amplify the initial sinusoidal wave signal output by the second shaping amplifier circuit and then output it.

[0056] Exemplarily, the first square wave signal may be a variable pulse signal, and the boost circuit may isolate and boost the initial sine wave signal based on a transformer and then output the signal.

[0057] Exemplarily, the square wave circuit is connected to the sine wave circuit and the plasma generator, and the square wave circuit includes: a self-excited oscillation circuit, a square wave generator, a resonant circuit, and a voltage doubling circuit;

[0058] The self-excited oscillation circuit is used to generate an AC oscillation signal, and the square wave generator is used to generate a second square wave signal;

[0059] The resonant circuit includes a transformer, a switching circuit and a first output terminal.

[0060] The switch circuit controls the primary winding of the transformer to access the AC oscillation signal based on the second square wave signal, and the secondary winding of the transformer outputs a voltage signal after the boost conversion, and the first output terminal is used to output the voltage signal after the boost conversion;

[0061] The voltage doubler circuit includes a second output terminal, and the voltage doubler circuit is located between the resonant circuit and the plasma generator. The voltage signal after the step-up conversion is processed by the voltage doubler circuit and then output as a high-voltage square wave signal. The second output terminal is used to output the high-voltage square wave signal to the plasma generator. Here, the resonant circuit includes a switch tube circuit and a transformer, and square wave modulation refers to the process of the square wave generator controlling the switch tube.

[0062] Exemplarily, one end of the boost circuit is connected to the first output terminal and then grounded, and the second output terminal is connected to the other end of the boost circuit and the positive electrode of the plasma generator.

[0063] Here, one end of the boost circuit is connected to the first output terminal and then grounded, and the second output terminal is connected to the other end of the boost circuit and the positive electrode of the plasma generator. At this time, the high-voltage square wave signal generated by the square wave circuit is a positive square wave signal, and accordingly, the waveform output by the power drive circuit is a positive square wave signal superimposed on a sine wave signal. After the second output terminal is connected to the positive electrode of the plasma generator, the plasma generator performs streamer sterilization based on the superimposed signal of the positive square wave signal superimposed on the sine wave signal.

[0064] Exemplarily, one end of the boost circuit is grounded, the first output terminal is connected to the other end of the boost circuit and the negative electrode of the plasma generator, and the second output terminal is connected to the positive electrode of the plasma generator and then grounded.

[0065] Here, one end of the boost circuit is grounded, the first output terminal is connected to the other end of the boost circuit and the negative electrode of the plasma generator, and the second output terminal is connected to the positive electrode of the plasma generator and then grounded. At this time, the waveform output by the power drive circuit is a negative square wave signal superimposed on a sine wave signal. Since the power drive circuit outputs a superimposed signal of a negative square wave superimposed on a sine wave, correspondingly, the first output terminal is connected to the other end of the boost circuit and the negative electrode of the plasma generator, and the first output terminal outputs the superimposed signal to the plasma generator, and the plasma generator performs streamer sterilization based on the superimposed signal.

[0066] The circuit for superimposing a square wave signal on a sine wave signal in an embodiment of the present application is described below with reference to an application example.

[0067] like Figure 5 As shown, the streamer sterilization device of this application example includes a square wave circuit, a sine wave circuit, and a plasma generator. The square wave circuit is connected to the sine wave circuit and the plasma generator, and the square wave circuit includes a self-excited oscillation circuit, a square wave generator, a resonant circuit, and a voltage doubling circuit.

[0068] In this application example, the square wave generator is used to generate a second square wave signal, and the low voltage input power supply (eg 12V) is supplied to the primary winding of the transformer in the resonant circuit after self-oscillation by the self-oscillation circuit.

[0069] Here, the self-excited oscillation circuit may be an LC oscillation circuit, in which L represents inductance and C represents capacitance, and when electromagnetic oscillation occurs in the self-excited oscillation circuit, the self-excited oscillation circuit may generate a sinusoidal wave signal, for example.

[0070] The resonant circuit can be a Royer circuit, which includes a switching circuit, a transformer T1 and a first output terminal a. The switching circuit controls the primary winding of the transformer T1 to access the AC oscillation signal based on the second square wave signal, and the secondary winding of the transformer T1 outputs a voltage signal after the boost conversion. The first output terminal a is used to output the voltage signal after the boost conversion. The switching circuit includes a first switching tube Q1 and a second switching tube Q2. The Royer circuit uses the magnetic flux saturation of the switching tube and the transformer core to perform self-excited oscillation, thereby realizing the DC conversion of the "on / off" conversion of the switching tube.

[0071] It can be understood that the square wave signal generator is used to output the second square wave signal. The square wave generator provides output without any input, so the square wave generator is a pulse input.

[0072] The square wave generator includes an operational amplifier IC1B, a resistor R, a capacitor C and a switch tube Q3. The second square wave signal is used to control the opening and closing of the first switch tube Q1 and the second switch tube Q2 of the switch circuit. Through the opening and closing of the first switch tube Q1 and the second switch Q2, the sine wave signal in the self-excited oscillation circuit is modulated and boosted by the transformer T1 to generate a high-voltage square wave signal with an output voltage of V1 high-voltage level.

[0073] It is understandable that in electronic circuits, when the voltage required by the latter stage is an integer multiple higher than that of the former stage and the required current is not very much, a voltage doubler circuit is needed. The voltage doubler circuit is composed of a diode with a higher reverse peak voltage and a capacitor with a higher withstand voltage. The voltage doubler circuit can generally only be used in low current and high voltage environments, and cannot be used in high current and high voltage environments. The voltage doubler circuit is generally divided into double voltage, triple voltage and multi-voltage rectifier circuits according to the number of times the input voltage.

[0074] Exemplarily, the voltage doubler circuit includes a second output terminal b, and the voltage doubler circuit is located between the resonant circuit and the plasma generator. The voltage signal after the boost conversion is doubled and rectified by the voltage doubler circuit and output as a high-voltage square wave signal. The second output terminal b is used to output the high-voltage square wave signal to the plasma generator. The voltage doubler circuit in this application is composed of three rectifier diodes (D1, D2, D3) and a capacitor CY1. The high-voltage square wave signal with a voltage of V1 high-voltage level is amplified by the voltage doubler circuit and outputs N1×V1 voltage to be loaded on the anode of the electrode. Here, N1 is the amplification factor of the voltage doubler circuit.

[0075] Exemplarily, the sine wave circuit includes a shaping amplifier circuit and a boost circuit.

[0076] It can be understood that the shaping amplifier circuit of the sine wave circuit includes a first shaping amplifier circuit and a second shaping amplifier circuit. The sine wave circuit can receive a square wave pulse signal generated from external input or internal self-excitation, that is, a first square wave signal. The square wave pulse signal is input to the first shaping amplifier circuit after being isolated from DC by capacitor C8, so that the square wave signal is smoothly alternating. Then it is input to the second shaping amplifier circuit, and after further shaping and amplification, an initial sine wave signal is generated, and the initial sine wave signal is output to the boost circuit through C11. The first shaping amplifier circuit and the second shaping amplifier circuit include comparator IC2B and comparator IC3B. Here, shaping is to modify or transform a distorted waveform or a different waveform, and amplification is to increase the amplitude of the waveform.

[0077] It can be understood that the input end of the boost circuit is connected to the output end of the second shaping amplifier circuit, and is used to amplify the initial sine wave signal output by the second shaping amplifier circuit and then output it. The boost circuit includes an isolation boost transformer T2, and the signal after secondary shaping and amplification is output to the primary winding of the isolation boost transformer T2 through C11, and the secondary winding of the transformer T2 outputs a sine wave signal.

[0078] It is understandable that if Figure 5 As shown, one end of the boost circuit of the sine wave circuit is connected to the first output terminal a and then grounded, and the second output terminal b is connected to the other end of the boost circuit and the positive electrode of the plasma generator.

[0079] Specifically, one end of the secondary winding of the isolated boost transformer T2 of the boost circuit is a grounding end, which is connected to the first output terminal a and then grounded; the other end is an output end for outputting a sinusoidal wave signal, and the second output terminal b is connected to the output end and the positive pole of the plasma generator.

[0080] In this connection mode, the square wave circuit generates a positive square wave signal and then superimposes it with the sine wave signal. At this time, the power drive circuit outputs a superimposed signal of the positive square wave signal and the sine wave signal to the plasma generator, and the plasma generator works to perform streamer sterilization.

[0081] The present application also provides a circuit diagram of a negative square wave signal superimposed on a sine wave signal, such as Figure 6 As shown, one end of the boost circuit is grounded, the first output terminal a is connected to the other end of the boost circuit and the negative electrode of the plasma generator, and the second output terminal b is connected to the positive electrode of the plasma generator and then grounded.

[0082] Specifically, one end of the isolated boost transformer T2 of the boost circuit is grounded, and the other end is an output end for outputting a sinusoidal wave signal. The first output terminal a is connected to the output end and the negative pole of the plasma generator, and the second output terminal b is connected to the positive pole of the plasma generator and then grounded.

[0083] In this way, the square wave circuit generates a negative square wave signal, and the power drive circuit outputs a superimposed signal of the negative square wave signal and the sine wave signal, and outputs the superimposed signal to the plasma generator after the first output terminal a is connected to the negative pole of the plasma generator to perform streamer sterilization.

[0084] The present application also provides a control method for the streamer sterilization device of the above embodiment. Figure 7 As shown,

[0085] Step 701: Obtain the quantity of the required bactericidal factors and the first frequency, where the first frequency is the frequency of the current sinusoidal wave signal;

[0086] Step 702: Determine a second frequency based on the number of bactericidal factors and the correspondence between the preset number of bactericidal factors and the frequency of the sine wave signal, wherein the first frequency is the frequency of the sine wave signal corresponding to the number of required bactericidal factors;

[0087] Step 703: Adjust the first frequency to the second frequency.

[0088] It is understood that the frequency of a sine wave refers to the number of cycles of the sine wave per unit time. Sterilization factors are a combination of factors that can exert a sterilization effect under specified conditions, and they can make the treated items reach a sterile state.

[0089] Here, there is a corresponding relationship between the number of bactericidal factors and the frequency of the sinusoidal wave signal. Generally speaking, the higher the frequency of the sine wave, the greater the number of bactericidal factors. However, as the number of bactericidal factors increases, the concentration of ozone also increases. High concentrations of ozone can irritate and damage mucous tissues such as the eyes and respiratory system, and have a negative effect on human health.

[0090] For example, the user can reasonably determine the number of sterilization factors, and determine the second frequency based on the number of sterilization factors and the correspondence between the preset number of sterilization factors and the frequency of the sine wave signal. The first frequency is adjusted to the second frequency.

[0091] Exemplarily, the frequency of the sine wave signal is determined by the frequency of the first square wave signal input by the sine wave circuit, and adjusting the first frequency to the second frequency includes:

[0092] Based on the adjustment of the frequency of the first square wave signal, the first frequency is adjusted to a second frequency.

[0093] It can be understood that the frequency of the sine wave is determined by the frequency of the first square wave signal input by the sine wave circuit, and the frequency of the first square wave signal is determined by the frequency of the first square wave signal. Therefore, the first frequency can be adjusted to the second frequency based on the adjustment of the frequency of the first square wave signal.

[0094] The control process of the streamer sterilization device of the embodiment of the present application is described below with reference to an application example. Figure 8 As shown in the figure, through this control process, a sine wave signal is superimposed on the high-voltage pulse square wave signal and then supplied to the plasma generator. The electric field generated by the waveform superposition can provide more energy, so that in the process of ionizing the air, not only a large number of positive ions and negative ions can be generated, but also a large number of highly oxidizing molecules and free radicals can be generated, thereby improving the sterilization effect on the air and enhancing the user experience. The specific steps of this process include:

[0095] Step 801: Receive a first square wave signal.

[0096] The sine wave circuit can generate the first square wave signal through external input or internal self-excitation of the sine wave module. Taking the external input first square wave signal as an example, the sine wave circuit receives the first square wave signal through the output interface of the first square wave signal, and the output interface of the first square wave signal here can be the I / O (Input / Output) interface of the single-chip microcomputer.

[0097] Step 802: Generate a high voltage square wave signal.

[0098] The square wave generator is used to control the on / off of the first switch tube Q1 and the second switch tube Q2 in the switch circuit of the Royer circuit, modulate the sine wave generated by the self-excited oscillation circuit, and generate a high-voltage fundamental wave signal.

[0099] The high-voltage fundamental wave signal here is the second square wave signal, which is boosted to V1 by transformer T1 and then generates a high-voltage square wave signal by voltage doubling circuit. The voltage of the high-voltage square wave signal is N1×V1. The high-voltage square wave signal here is loaded to both ends of the electrode to generate positive ions or negative ions.

[0100] Step 803: Amplify and shape the first square wave signal.

[0101] The sine wave circuit includes a first shaping amplifier circuit. After receiving the first square wave signal, the first square wave signal is input from the input end of the first shaping amplifier circuit, and the first square wave signal is amplified and shaped by the first shaping amplifier circuit, so that the first square wave signal undergoes smooth alternation, providing a basis for the generation of a sine wave signal.

[0102] Step 804: Diode amplification and shaping to generate a sine wave signal.

[0103] After the first square wave signal is smoothly alternating, a qualified sinusoidal wave signal has not yet been formed, and the smoothly alternating signal needs to be amplified and shaped at a secondary level to generate an initial sinusoidal wave signal. The initial sinusoidal wave signal is isolated and boosted by transformer T2 to obtain a sinusoidal wave signal.

[0104] Step 805: Superimpose the sine wave signal and the high voltage square wave signal.

[0105] Here, as described above, superimposing the sine wave signal and the high voltage square wave signal may include: superimposing the positive square wave signal with the sine wave signal or superimposing the negative square wave signal with the sine wave signal. The user can select Figure 5 or Figure 6 The circuit generates a superimposed signal of a positive square wave signal and a sine wave signal or a superimposed signal of a negative square wave signal and a sine wave signal.

[0106] After the generated sinusoidal wave signal is superimposed with the high-voltage square wave signal, it is input to both ends of the plasma generator. At this time, under the action of the superimposed signal, the external electric field of the plasma generator will generate more energy. The free electrons obtain energy under the action of the external electric field and continuously collide with the surrounding gas molecules, causing the gas molecules to be excited and ionized, thereby generating more electrons, causing electron avalanche, causing some atoms or molecules to be excited, thereby forming active particles such as ions, free radicals, and highly oxidizing molecules that cannot be formed under normal conditions.

[0107] After discharge, a large number of active particles such as free radicals have strong reactivity and will produce redox reactions with toxic and harmful gases, living viruses, bacteria, etc. in the air to generate carbon dioxide and ozone, thereby purifying the air.

[0108] Step 806: Adjust the amount of bactericidal factor.

[0109] Based on the above structure, the number of bactericidal factors has a corresponding relationship with the frequency of the sine wave signal, and the frequency of the first square wave signal input by the sine wave circuit is determined. Therefore, the user can further adjust the frequency of the sine wave by adjusting the frequency of the first square wave signal to obtain the amount of bactericidal factors required by the user. In addition, as the number of bactericidal factors increases, the concentration of ozone increases, and high concentrations of ozone will irritate and damage mucous tissues such as the eyes and respiratory system, and have a negative effect on human health. The user can reasonably determine the number of bactericidal factors.

[0110] It can be understood that in order to implement the control method of the streamer sterilization device of the embodiment of the present application, the embodiment of the present application also provides a streamer sterilization control device, which corresponds to the above-mentioned control method, and each step in the above-mentioned control method embodiment is also fully applicable to the control device embodiment of the air conditioner.

[0111] like Fig. 9 As shown, the control device of the air conditioner according to the embodiment of the present application includes: an acquisition module 901 , a determination module 902 and an adjustment module 903 .

[0112] The acquisition module 901 is used to acquire the quantity of the required bactericidal factor and the first frequency, where the first frequency is the frequency of the current sinusoidal wave signal;

[0113] The determination module 902 is used to determine the second frequency based on the number of bactericidal factors and the correspondence between the preset number of bactericidal factors and the frequency of the sine wave signal, wherein the first frequency is the frequency of the sine wave signal corresponding to the number of required bactericidal factors;

[0114] The adjustment module 903 is used to adjust the first frequency to the second frequency.

[0115] In some embodiments, the adjustment module 903 is further configured to adjust the first frequency to a second frequency based on the adjustment of the frequency of the first square wave signal.

[0116] The embodiment of the present application also provides an electronic device, which includes the streamer sterilization device described in the embodiment of the present application. In this way, by superimposing a sine wave signal on the high-voltage square wave signal and then supplying power to the plasma generator, the electric field generated after the waveform superposition can provide more energy, so that in the process of ionizing the air, not only a large number of positive ions and negative ions can be generated, but also a large number of highly oxidizing molecules and free radicals can be generated, thereby improving the sterilization effect on the air and enhancing the user experience.

[0117] Exemplarily, the electronic device may be an air conditioner. The air conditioner is used to adjust the temperature, humidity, etc. of the environment. The air conditioner may be a cooling-only air conditioner or a cooling-heating dual-purpose air conditioner. The air conditioner may be a wall-mounted air conditioner, a cabinet-type air conditioner, a window-type air conditioner, or a ceiling-mounted air conditioner, etc., which is not specifically limited in the embodiments of the present application.

[0118] Exemplarily, the streamer sterilization device can be arranged in the air duct of the air conditioner, and can utilize the free radicals and highly oxidizing molecules generated by the operation of the plasma generator to eliminate bacteria in the air duct and the indoor environment, thereby purifying the air well.

[0119] Based on the hardware implementation of the above program modules and in order to implement the method of the embodiment of the present application, the embodiment of the present application also provides an air conditioner. Fig.10 Only an exemplary structure of the air conditioner is shown, not all structures, and it can be implemented as needed. Fig.10 Partial or complete structure shown.

[0120] like Fig.10 As shown, the air conditioner 1000 provided in the embodiment of the present application includes: at least one processor 1001, a memory 1002 and a user interface 1003. The various components in the air conditioner 1000 are coupled together through a bus system 1004. It can be understood that the bus system 1004 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1004 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, Fig.10 Various buses are labeled as bus system 1004 .

[0121] The user interface 1003 may include a display, a keyboard, a mouse, a trackball, a click wheel, keys, buttons, a touch pad or a touch screen.

[0122] The memory 1002 in the embodiment of the present application is used to store various types of data to support the operation of the air conditioner. Examples of such data include: any computer program used to operate on the air conditioner.

[0123] The control method of the air conditioner disclosed in the embodiment of the present application can be applied to the processor 1001, or implemented by the processor 1001. The processor 1001 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the control method of the air conditioner can be completed by the hardware integrated logic circuit or software instructions in the processor 1001. The above-mentioned processor 1001 can be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 1001 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 1002. The processor 1001 reads the information in the memory 1002 and completes the steps of the control method of the air conditioner provided in the embodiment of the present application in combination with its hardware.

[0124] In an exemplary embodiment, the air conditioner can be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD), field programmable gate array (FPGA), general processor, controller, microcontroller (MCU), microprocessor, or other electronic components to execute the aforementioned method.

[0125] It can be understood that the memory 1002 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAM bus random access memory (DRRAM, Direct Rambus Random Access Memory).The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0126] It is understandable that, in other embodiments, the electronic device may also be an electronic device with air purification function such as a fresh air blower.

[0127] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0128] In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0129] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A streamer sterilization device, characterized in that: include: A power drive circuit and a plasma generator that operates based on a drive power output by the power drive circuit; The power drive circuit includes: a square wave circuit for outputting a high-voltage square wave signal and a sine wave circuit for outputting a sine wave signal; The high-voltage square wave signal output by the square wave circuit is superimposed on the sine wave signal output by the sine wave circuit to supply power to the plasma generator.

2. The streamer sterilization device according to claim 1, characterized in that: The sine wave circuit comprises: A shaping amplifier circuit, the shaping amplifier circuit is used to shape and amplify the first square wave signal, the shaping amplifier circuit includes a first shaping amplifier circuit and a second shaping amplifier circuit, the input end of the first shaping amplifier circuit is connected to the first square wave signal, and the output end of the first shaping amplifier circuit is connected to the input end of the second shaping amplifier circuit; A boost circuit, the input end of which is connected to the output end of the second shaping amplifier circuit, and is used to amplify and output the initial sinusoidal wave signal output by the second shaping amplifier circuit.

3. The streamer sterilization device according to claim 1, characterized in that: The square wave circuit is connected to the sine wave circuit and the plasma generator, and the square wave circuit includes: a self-excited oscillation circuit, a square wave generator, a resonant circuit and a voltage doubling circuit; The self-excited oscillation circuit is used to generate an AC oscillation signal, and the square wave generator is used to generate a second square wave signal; The resonant circuit includes a transformer, a switch circuit and a first output terminal, the switch circuit controls the primary winding of the transformer to access the AC oscillation signal based on the second square wave signal, the secondary winding of the transformer outputs a voltage signal after boost conversion, and the first output terminal is used to output the voltage signal after boost conversion; The voltage doubler circuit includes a second output terminal, and the voltage doubler circuit is located between the resonant circuit and the plasma generator. The voltage signal after the boost conversion is output as the high-voltage square wave signal after voltage doublement and rectification by the voltage doubler circuit. The second output terminal is used to output the high-voltage square wave signal to the plasma generator.

4. The streamer sterilization device according to claim 3, characterized in that: One end of the boost circuit is connected to the first output terminal and then grounded, and the second output terminal is connected to the other end of the boost circuit and the positive electrode of the plasma generator.

5. The streamer sterilization device according to claim 3, characterized in that: One end of the boost circuit is grounded, the first output terminal is connected to the other end of the boost circuit and the negative electrode of the plasma generator, and the second output terminal is connected to the positive electrode of the plasma generator and then grounded.

6. A control method for the streamer sterilization device according to any one of claims 1 to 5, characterized in that: The method comprises: Obtaining the required number of bactericidal factors and a first frequency, where the first frequency is the frequency of the current sinusoidal wave signal; Determine a second frequency based on the number of the bactericidal factors and a correspondence between the preset number of bactericidal factors and the frequency of the sine wave signal, wherein the first frequency is the frequency of the sine wave signal corresponding to the required number of bactericidal factors; The first frequency is adjusted to the second frequency.

7. The method according to claim 6, characterized in that The frequency of the sine wave signal is determined by the frequency of the first square wave signal input by the sine wave circuit, and adjusting the first frequency to the second frequency includes: Based on the adjustment of the frequency of the first square wave signal, the first frequency is adjusted to the second frequency.

8. A control device for a streamer sterilization device as claimed in any one of claims 1 to 5, characterized in that: include: An acquisition module, used to acquire the quantity of the required bactericidal factor and a first frequency, where the first frequency is the frequency of the current sinusoidal wave signal; A determination module, configured to determine a second frequency based on the number of the bactericidal factors and a preset correspondence between the number of bactericidal factors and the frequency of the sine wave signal, wherein the first frequency is the frequency of the sine wave signal corresponding to the number of the required bactericidal factors; An adjustment module is used to adjust the first frequency to the second frequency.

9. An electronic device, characterized in that: include: The streamer sterilization device according to any one of claims 1 to 5, wherein the electronic device further comprises: a processor and a memory for storing a computer program that can be run on the processor, wherein: The processor is used to execute the steps of the method according to any one of claims 6 to 7 when running a computer program.

10. The electronic device according to claim 9, characterized in that: The electronic device is an air conditioner.

11. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 6 to 7 are implemented.

Images