Silent plasma tuning control circuit and generating device

Abstract

The present invention discloses a silent plasma tuning control circuit and its generating device, comprising a transformer circuit coupled to a switching power supply and a tuning element coupled to the transformer circuit; the two output ends of the tuning element are respectively connected to two triodes, the two triodes are connected in series to form a signal output circuit, the signal output circuit is coupled to an amplifier circuit, the amplifier circuit is coupled to two high-voltage output circuits, the two high-voltage output circuits are coupled to an anode emitter and a cathode emitter to output a positive high-voltage signal and a negative high-voltage signal; the top of the anode emitter is rounded, and the top of the cathode emitter is pointed. In this way, the present invention can quickly form a plasma field to sterilize and kill viruses without generating high-frequency sound wave interference, thus avoiding being perceived by humans and animals and affecting their physiology and psychology.

Description

Technical Field

[0001] The present invention relates to the field of plasma, and in particular to a silent plasma tuning control circuit and a generating device thereof. Background Art

[0002] In today's global environment, people are increasingly demanding sterilization and virus control, leading to the emergence of various technologies designed to create a sterile, virus-free, and safe environment. Traditional virus control technologies rely on plasma generators to rapidly inactivate viruses, offering fast response times and high virus-killing effectiveness. However, these devices often rely on oscillating circuits, which easily generate high-frequency sound waves ranging from 10 to 30 kHz. For the human auditory system, sounds above 2 kHz can be irritating, disrupting both daily life and physiological function. This noise not only significantly disrupts sleep but also makes it difficult for humans to maintain a comfortable mood and maintain normal physiological function in such disruptive sound fields in the workplace. This is because these high-frequency waves are transmitted through the human auditory system to the brain's neurons, triggering a self-resistance mechanism that can disrupt the functioning of various physiological parameters, including the endocrine system.

[0003] For example, when using traditional plasma negative ion technology in livestock farming, as these animals have a higher sensitivity to high frequencies than humans, they are more susceptible to high-frequency sound fields that affect their physiological response mechanisms. Therefore, considering the potential impact on humans and animals, the audio generated by the plasma field should avoid noise at or below 30 kHz. Therefore, the host oscillator circuit must operate at a frequency higher than 30 kHz.

[0004] The prior art proposes a radio frequency transmitting device and an inductively coupled plasma generating device thereof. This technology provides an electromagnetic shielding cover on the radio frequency coil and the coil fixing part, thereby reducing the interference of the radio frequency coil to the outside world during operation and reducing the electromagnetic pollution to the surrounding environment.

[0005] The prior art also proposes a structure for suppressing electromagnetic interference and leakage waves, which includes a radio frequency power supply housing and multiple cavities with a certain depth arranged on the inner wall of the radio frequency power supply housing. The electromagnetic interference of the radio frequency power supply is incident on the cavity and is attenuated through multiple reflections and scattering in the cavity.

[0006] Both of the above technologies solve the problem of electromagnetic interference from the outside, isolating electromagnetic sound waves from the external environment. This technical means cannot solve the problem from the root, and it increases the complexity of the device and occupies more space.

[0007] Therefore, it is necessary to design a silent plasma tuning control circuit and its generating device which has a simple structure, can quickly sterilize and kill viruses, and can fundamentally solve the problem of high-frequency sound wave interference. Summary of the Invention

[0008] In order to overcome the above problems, the present invention provides a silent plasma tuning control circuit and a generating device thereof, which can push-pull and output two signals greater than 15KHz through a tuning chip, and the signal output circuit coupled to the tuning chip superimposes the two signals and transmits them to two transistors connected in series, and amplifies them through an amplifier circuit coupled to the series circuit of the two transistors, and then boosts the amplified signals into positive and negative high-voltage output signals at the transmitting end, and transmits the positive and negative high-voltage output signals to an anode emitter with a round top and a cathode emitter with a pointed top, respectively, so that the device can quickly form a plasma field to kill bacteria and viruses without generating high-frequency sound wave interference that can be perceived by humans and animals, thereby avoiding affecting the physiology and psychology of humans and animals.

[0009] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is:

[0010] A silent plasma tuning control circuit is used to output high-voltage signals to the anode and cathode of a silent plasma generating device after frequency conversion and noise reduction processing; it includes a voltage conversion circuit coupled to a switching power supply and a tuning element coupled to the voltage conversion circuit; the voltage conversion circuit is used to convert the output current of the switching power supply; the two output ends of the tuning element are respectively connected to two triodes, and the two triodes are connected in series to form a signal output circuit, and the signal output circuit is used to superimpose the two push-pull output signals of the tuning element; the signal output circuit is coupled to an amplifier circuit, and the amplifier circuit amplifies the superimposed signal output by the signal output circuit; the amplifier circuit is coupled to two high-voltage output circuits, and the two high-voltage output circuits respectively output a positive high-voltage signal and a negative high-voltage signal.

[0011] Furthermore, several input ends of the tuning element are respectively coupled to the frequency tuning resistor and the frequency tuning capacitor, so that the two output ends push-pull output signals higher than 30KHz; the several input ends include a first input pin coupled to the resistor R4, a second input pin coupled to the resistor R3 and the capacitor C2 connected in series, and a third input pin coupled between the resistor R3 and the capacitor C2.

[0012] Furthermore, filtering circuits are respectively coupled between the two output ends and the two transistors; the filtering circuits include a first filtering circuit coupled between the first output pin and the transistor Q2, and a second filtering circuit coupled between the second output pin and the transistor Q1; the first filtering circuit includes a capacitor C13 and a resistor R9 connected in parallel; the second filtering circuit includes a capacitor C12 and a resistor R10 connected in parallel.

[0013] A silent plasma generating device for sterilizing and disinfecting air; the device uses the silent plasma tuning control circuit and includes a connection box composed of a plurality of insulating shells, a connection cavity arranged at the upper portion of the connection box, a circuit board arranged at the bottom of the connection cavity, and an anode emitter and a cathode emitter arranged above the connection cavity and connected to the circuit board. The silent plasma tuning control circuit is built into the circuit board, the top of the anode emitter is rounded, and the top of the cathode emitter is pointed.

[0014] Furthermore, the anode emitter and the cathode emitter are respectively located at two ends of the connection box, and the anode emitter and the cathode emitter are arranged in sequence along the air flow direction.

[0015] Furthermore, a power input line is connected to the circuit board, and an input end of the power input line is connected to a switching power supply.

[0016] Furthermore, the anode emitter and the cathode emitter are both connected to the circuit board via connecting wires, and the connecting wires are resistant to high voltage.

[0017] Furthermore, the connection cavity is filled with an insulating connector, and the insulating connector is used to adhere and fix the circuit board, the connecting wire and the power input wire.

[0018] Furthermore, the anode emitter and the cathode emitter are both made of corrosion-resistant metal materials.

[0019] Furthermore, the insulating shell is formed by injection molding of insulating material.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The silent plasma tuning control circuit of the present invention uses a tuning chip to push-pull and output two signals greater than 15 kHz. A signal output circuit coupled to the tuning chip superimposes the two signals and transmits them to two series-connected transistors. An amplifier circuit coupled to the series circuit of the two transistors amplifies the signals and then boosts the voltage of the amplified signals to generate positive and negative high-voltage output signals at the transmitter, thereby generating a plasma field. When the circuit outputs the high-voltage bipolar signals of the plasma field, the operating power of the host oscillator circuit must be above 30 kHz to prevent them from being perceived by humans and animals and potentially affecting their physiological and psychological well-being.

[0022] 2. The silent plasma tuning control circuit of the present invention can adjust the appropriate frequency by coupling external resistors and capacitors to the input pins of the tuning chip, thereby enabling the two output pins of the tuning chip to push-pull output signals higher than 30KHz, thereby effectively avoiding the generation of high-frequency sound waves below 30KHz.

[0023] 3. The silent plasma generator of the present invention adopts the silent plasma tuning control circuit, so that while generating a plasma field for rapid sterilization and virus removal, the generator will not generate high-frequency sound waves below 30 kHz that affect humans and animals; and the top of the anode emitter is set to a round head shape to prevent the formation of a high-frequency sharp electric explosion point effect below 30 kHz, and the top of the cathode emitter is set to a pointed shape, which can quickly release the electron flow into the air to form a plasma field.

[0024] 4. The silent plasma generating device of the present invention adopts epoxy resin to fill the connection cavity, thereby relatively fixing the circuit board, power input line and connection line. The structure is simple, the internal structure of the device is reduced, and an insulating environment is maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an equivalent circuit diagram of the silent plasma tuning control circuit of the present invention;

[0026] Figure 2 yes Figure 1 The local equivalent circuit diagram of area A in the middle;

[0027] Figure 3 yes Figure 1 The local equivalent circuit diagram of area B in the middle;

[0028] Figure 4 yes Figure 1 The local equivalent circuit diagram of the C area;

[0029] Figure 5 yes Figure 1 The local equivalent circuit diagram of the D area in the middle;

[0030] Figure 6 yes Figure 1 The local equivalent circuit diagram of the E region in the middle;

[0031] Figure 7 It is a structural schematic diagram of the silent plasma generating device of the present invention;

[0032] Figure 8 This is a schematic diagram of the use of the silent plasma generating device of the present invention;

[0033] The markings of the components in the accompanying drawings are as follows:

[0034] 5. Third input pin; 6. First input pin; 7. Second input pin; 11. First output pin; 14. Second output pin; 202. Signal output circuit; 203. Amplification circuit; 204. High-voltage output circuit; 205. Voltage conversion circuit;

[0035] 10. Connection box; 20. Circuit board; 2011. Tuning element; 30. Power input line; 40. Insulating connector; 50. Anode emitter; 60. Cathode emitter; 70. Connection line; 80. Ventilation duct. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the scope of protection of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making any creative work are within the scope of protection of the present invention.

[0037] Example

[0038] like Figures 1 to 6 As shown, a silent plasma tuning control circuit is used to output a high-voltage signal to the anode and cathode of a silent plasma generator after frequency conversion and noise reduction. The circuit includes a voltage transformer circuit 205 coupled to a switching power supply and a tuning element 2011 coupled to the voltage transformer circuit 205. The voltage transformer circuit 205 is used to transform the output current of the switching power supply. The tuning element 2011 is preferably an SG3525 chip, with its two output terminals connected to two transistors. The two transistors are connected in series to form a signal output circuit 202, which is used to superimpose the two push-pull output signals above 15 kHz from the tuning element 2011. The signal output circuit 202 is coupled to an amplifier circuit 203, which amplifies the superimposed signal above 30 kHz outputted by the signal output circuit 202. The amplifying circuit 203 is coupled to two high-voltage output circuits 204, which respectively output a positive high-voltage signal and a negative high-voltage signal to form a plasma field, so that the air passing through the field can be instantly sterilized and deviralized.

[0039] With this configuration, when the silent plasma tuning control circuit is connected to the switching power supply, the AC power input from the switching power supply is processed by the transformer circuit 205 and output as DC power, which is then transmitted to the SG3525 chip. Subsequently, the chip's two output pins output two signals exceeding 15 kHz in push-pull mode. The signal output circuit 202, coupled to the chip, superimposes these two signals and transmits them to two series-connected transistors. Subsequently, the amplifier circuit 203, coupled to the series circuit formed by the two transistors, amplifies the superimposed signal exceeding 30 kHz. The amplified signal is then boosted to generate positive and negative high-voltage output signals at the transmitter, generating a plasma field.

[0040] like Figure 2 As shown, in some embodiments, several input terminals of the tuning element 2011 are respectively coupled to the frequency modulation resistor and the frequency modulation capacitor, so that the two output terminals push-pull and output signals higher than 30KHz, ensuring that the required working power of the host oscillation circuit is higher than 30KHz to avoid being perceived by humans and animals.

[0041] Specifically, the plurality of input terminals include a first input pin 6 coupled to resistor R4, a second input pin 7 coupled to resistor R3 and capacitor C2 connected in series, and a third input pin 5 coupled between resistor R3 and capacitor C2. With this arrangement, the tuning element 2011 outputs a suitable frequency under the coordinated control of resistors R4, R3, and C2, such that the first output pin 11 and the second output pin 14 of the tuning element 2011 push-pull output a signal higher than 30 kHz.

[0042] like Figure 3 As shown, in some other embodiments, a first filtering circuit is coupled between the first output pin 11 and the transistor Q2 , and a second filtering circuit is coupled between the second output pin 14 and the transistor Q1 .

[0043] The first filter circuit includes a capacitor C13 and a resistor R9 connected in parallel; the second filter circuit includes a capacitor C12 and a resistor R10 connected in parallel.

[0044] With this arrangement, the push-pull output signals of the first output pin 11 and the second output pin 14 are filtered by the filter circuit to remove ripples in the rectified output voltage, making the waveform smoother and facilitating subsequent signal amplification and voltage boosting processing.

[0045] like Figure 7 As shown, a silent plasma generator is used for sterilizing and removing viruses from the air. The device uses the silent plasma tuning control circuit and includes a connection box 10 consisting of several insulating shells, a connection cavity disposed above the connection box 10, a circuit board 20 disposed at the bottom of the connection cavity, and an anode emitter 50 and a cathode emitter 60 disposed above the connection cavity and connected to the circuit board 20. The silent plasma tuning control circuit is built into the circuit board 20.

[0046] So set up, such as Figure 8As shown, in actual use, it is only necessary to extend the anode emitter 50 and the cathode emitter 60 into the ventilation duct 80, and the anode emitter 50 and the cathode emitter 60 are arranged in sequence along the wind direction, and the emission ends of the two are kept at a certain distance (this distance is further determined based on the positive and negative ion levels, wind speed requirements, and sterilization capacity requirements). In actual applications, according to specific design requirements, the entire device can also be placed in a duct.

[0047] When the device is powered on, air is positively ionized by the anode emitter 50 and then enters the negative ion field. During the plasma conversion process, microbial surface substances and protein chains are damaged by the instantaneous positive and negative changes, achieving both sterilization and virus elimination. Simultaneously, the voltage difference between the positive and negative ion fields creates a microscopic plasma current breakdown force, causing moisture in the air to transform into hydroxide ions, which ionize and dissolve proteins, thus achieving rapid sterilization and virus elimination.

[0048] In some embodiments, the anode emitter 50 and the cathode emitter 60 are both made of corrosion-resistant metal.

[0049] The top of the anode emitter 50 is configured in a rounded shape to prevent the formation of a high-frequency sharp electric explosion point effect below 30KHz.

[0050] The top of the cathode emitter 60 is configured in a pointed shape, which can quickly release electron flow into the air to form a plasma field.

[0051] In some embodiments, the anode emitter 50 and the cathode emitter 60 are both connected to the circuit board 20 via a connecting wire 70, which is connected to the circuit board 20 by soldering, and the connecting wire 70 is connected to the anode emitter 50 and the cathode emitter 60 by soldering or other welding methods. The connecting wire 70 is resistant to high voltage and is coated with a silicone material.

[0052] The circuit board 20 is connected to a power input line 30 by soldering. The input end of the power input line 30 is connected to a switching power supply for supplying power to the entire device.

[0053] In other embodiments, the connection cavity is filled with an insulating connector 40, and the insulating connector 40 is used to adhere and fix the circuit board 20, the connecting wire 70, and the power input wire 30. The insulating connector 40 is preferably epoxy resin.

[0054] In other embodiments, the insulating housing is formed by injection molding of an insulating material, wherein the insulating material is preferably ABS or PC+ABS.

[0055] Through the above method, when adopting a specific implementation method, the circuit is designed into a plasma module with a positive voltage of +6KV (±5%) and a negative voltage of -6KV (±5%), so that the two positive and negative ion emission ends form a voltage difference of 12KV (±10%). When the distance between the anode emission end and the cathode emission end is controlled to be 5-6cm, and the wind speed in the duct is greater than 3m / s, the device can be used in a ventilation duct 80 with a diameter of 60-200mm. It is worth noting that it is only suitable for insulating pipes such as plastics, and is not suitable for conductive pipes such as metals. If it needs to be used in a metal pipe, the device needs to be designed with an additional emission end structure, adjustment level, and installation method.

[0056] The above description is only used to illustrate the technical solution of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be understood by those skilled in the art that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied to other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A silent plasma tuning control circuit, used to output high-voltage signals after frequency conversion and noise reduction processing to the anode and cathode of a silent plasma generating device; characterized in that: The invention comprises a voltage conversion circuit (205) coupled to a switching power supply, and a tuning element (2011) coupled to the voltage conversion circuit (205); the voltage conversion circuit (205) is used for performing voltage conversion processing on the output current of the switching power supply; two output ends of the tuning element (2011) are respectively connected to two triodes, the two triodes are connected in series to form a signal output circuit (202), the signal output circuit (202) is used for superimposing two push-pull output signals higher than 15 kHz of the tuning element (2011); the signal output circuit (202) is coupled to an amplifier circuit (203), the amplifier circuit (203) amplifies the superimposed signal higher than 30 kHz output by the signal output circuit (202); the amplifier circuit (203) is coupled to two high-voltage output circuits (204), the two high-voltage output circuits (204) respectively output a positive high-voltage signal and a negative high-voltage signal; The plurality of input terminals of the tuning element (2011) are respectively coupled to a frequency-modulating resistor and a frequency-modulating capacitor, so that the two output terminals push-pull and output a signal higher than 30 kHz; the plurality of input terminals include a first input pin (6) coupled to the resistor R4, a second input pin (7) coupled to the resistor R3 and the capacitor C2 connected in series, and a third input pin (5) coupled between the resistor R3 and the capacitor C2; Wherein, the tuning element (2011) is an SG3525 chip.

2. The silent plasma tuning control circuit according to claim 1, characterized in that: Filter circuits are coupled between the two output terminals and the two transistors respectively; the filter circuits include a first filter circuit coupled between the first output pin (11) and the transistor Q2, and a second filter circuit coupled between the second output pin (14) and the transistor Q1; the first filter circuit includes a capacitor C13 and a resistor R9 connected in parallel; the second filter circuit includes a capacitor C12 and a resistor R10 connected in parallel.

3. A silent plasma generator for sterilizing and killing viruses in the air; characterized in that: The device uses the silent plasma tuning control circuit described in any one of claims 1 to 2, comprising a connection box (10) composed of a plurality of insulating shells, a connection cavity arranged on the upper part of the connection box (10), a circuit board (20) arranged at the bottom of the connection cavity, and an anode emitter (50) and a cathode emitter (60) arranged above the connection cavity and connected to the circuit board (20), wherein the silent plasma tuning control circuit is built into the circuit board (20), the top of the anode emitter (50) is arranged in a round head shape, and the top of the cathode emitter (60) is arranged in a pointed head shape.

4. The silent plasma generator according to claim 3, characterized in that: The anode emitter (50) and the cathode emitter (60) are respectively located at two ends of the connection box (10), and the anode emitter (50) and the cathode emitter (60) are arranged in sequence along the air flow direction.

5. The silent plasma generator according to claim 3, characterized in that: A power input line (30) is connected to the circuit board (20), and an input end of the power input line (30) is connected to a switching power supply.

6. The silent plasma generator according to claim 5, characterized in that: The anode emitter (50) and the cathode emitter (60) are both connected to the circuit board (20) via a connecting wire (70), and the connecting wire (70) has high voltage resistance.

7. The silent plasma generator according to claim 6, characterized in that: The connection cavity is filled with an insulating connector (40), and the insulating connector (40) is used to adhere and fix the circuit board (20), the connecting wire (70), and the power input wire (30).

8. The silent plasma generator according to claim 3, characterized in that: The anode emitter (50) and the cathode emitter (60) are both made of corrosion-resistant metal materials.

9. The silent plasma generator according to claim 3, characterized in that: The insulating shell is formed by injection molding of insulating material.

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