A product-controllable plasma generating device, method and application

Abstract

The application discloses a product-controllable plasma generating device, method and application, and relates to the technical field of plasma generating devices. The device comprises a dielectric barrier discharge structure, and the electrode negative pole of the dielectric barrier discharge structure is made of a water-absorbing material. A capillary water pipe is arranged in the electrode negative pole, the capillary water pipe is connected with a water outlet of a piston cylinder, an upper end piston is arranged at an upper end of the piston cylinder, a water tank is arranged at a position higher than the maximum limiting height of the upper end piston, the water tank is annularly arranged around the piston cylinder, the water tank is communicated with the piston cylinder through a pipeline at the bottom, before the upper end piston is pressed, the water tank is communicated with the atmosphere through an air valve, and the piston cylinder is filled with water. When the upper end piston is pressed, the air valve is closed, the quantitative water flows to the capillary water pipe, and then uniformly penetrates into the electrode negative pole, and the water outflow amount is determined by the descending distance of the upper end piston. The application has the advantages of low energy consumption, high efficiency, low cost, good heat management capability, accurate product generation control, small size, and wide application prospect.

Description

Technical Field

[0001] The present invention belongs to the field of plasma technology and relates to a plasma generating device with controllable products, a method and an application thereof. Background Art

[0002] As an efficient and flexible means of energy conversion and reaction medium regulation, plasma technology has been widely used in recent years in areas such as surface treatment, medical device disinfection, environmental management, and food preservation. However, common plasma generators still face significant technical bottlenecks in product regulation, as shown in the following points:

[0003] (1) Difficulty in regulating active particles. Plasma sources generate a wide variety of active particles, including electrons, ions, free radicals, excited molecules, etc. The type and concentration of these particles directly determine the application performance of the device. However, existing plasma sources have significant limitations in regulating products, making it difficult to precisely control the generation of target active particles. This not only leads to instability in disinfection and sterilization effects, but also limits the widespread application of the device in specific scenarios.

[0004] (2) Traditional gas control methods are difficult to miniaturize. Existing plasma generators usually change the reaction conditions by adjusting the type, flow rate, and pressure of the input gas to achieve the selective generation of active particles. However, this gas control method requires a complex piping system, precise airflow control devices, and large gas source equipment, making it difficult to achieve miniaturization. Therefore, traditional gas control methods are more suitable for large-scale industrial scenarios, while their application in portable and handheld devices is greatly limited.

[0005] (3) Limitations of voltage control methods. Another common method for product control is to change the reaction conditions of the plasma by adjusting the input voltage. However, drastic changes in voltage can easily lead to overheating of electrical components, causing heat accumulation problems, affecting the operating stability and service life of the equipment. At the same time, high-voltage operation is usually accompanied by high energy consumption, which not only increases operating costs but is also detrimental to environmental protection.

[0006] (4) High energy consumption and large heat dissipation requirements. Traditional plasma generators typically have high power consumption, often exceeding 100 watts, and generate a large amount of heat, requiring additional heat dissipation devices for cooling. This high energy consumption design not only increases the operating cost of the equipment, but also increases the size and weight of the device, further limiting its application in home and portable scenarios.

[0007] Based on the above technical pain points, there is an urgent need for a plasma generating device with controllable products to adapt to diverse application needs and scenarios. Summary of the Invention

[0008] In order to solve the above problems, the present invention provides a product-controllable plasma generating device with low energy consumption, high efficiency, low cost, good heat management capability, the ability to accurately control the generated products, easy miniaturization, and broad application prospects.

[0009] A second object of the present invention is to provide a method for using a plasma generating device with controllable products.

[0010] The third object of the present invention is to provide a plasma generating device with controllable products for use in the disinfection of medical instruments and sensitive surfaces.

[0011] The technical solution adopted by the present invention is a product-controllable plasma generating device, comprising a dielectric barrier discharge structure, wherein the cathode of the dielectric barrier discharge structure is made of a water-absorbing material;

[0012] A capillary water tube is provided in the negative electrode of the electrode, and the capillary water tube is connected to the water outlet of the piston cylinder. An upper piston is installed at the upper port of the piston cylinder. A water tank is provided at a position higher than the maximum limit height of the upper piston. The water tank is annular and surrounds the piston cylinder. The bottom of the water tank is connected to the piston cylinder through a pipe. Before pressing the upper piston, the water tank is connected to the atmosphere through an air valve, and the piston cylinder is filled with water; when the upper piston is pressed, the air valve is closed, and a certain amount of water flows to the capillary water tube, and then evenly penetrates into the negative electrode of the electrode. The outflow of water is linearly related to the downward movement distance of the upper piston.

[0013] Furthermore, the water outlet of the piston cylinder is annular and is located below the pipe; an opening and closing device is provided at the bottom of the piston cylinder, and the opening and closing device includes a piston and a spring, a sealing gasket is provided at the edge of the piston head of the piston, and a spring is provided between the piston head and the inner bottom wall of the piston cylinder; when the upper piston is pressed down, the water in the piston cylinder pushes the piston head of the opening and closing device downward, the spring is compressed, and the water outlet of the piston cylinder opens. After the water flows out, the spring recovers its deformation and pushes the piston head to seal the water outlet of the piston cylinder; after the air valve is opened, due to the principle of communicating vessels, the water in the water tank enters the piston cylinder, and the piston cylinder is filled with water.

[0014] Furthermore, the negative electrode is provided with grooves distributed in a star-shaped pattern, and the capillary water tubes are fixed in the grooves.

[0015] Furthermore, the water distribution pipe is distributed in a scattered manner around the piston cylinder, and the side of the water distribution pipe away from the piston cylinder is lower than the side close to the piston cylinder, forming a slope. The side of the water distribution pipe close to the piston cylinder is located at the water outlet of the piston cylinder, and the side of the water distribution pipe away from the piston cylinder is connected to the capillary water pipe through a vertical pipe, so that the water flowing out of the piston cylinder is evenly distributed to the capillary water pipes distributed in a star-shaped manner.

[0016] Furthermore, the port of the air valve is provided with a closing plug, which is fixedly connected to the upper piston, and a supporting spring is provided between the upper piston and the outer wall of the piston cylinder; when the upper piston is pressed down and moves downward, the closing plug moves downward at the same time, closing the air valve and compressing the supporting spring; when the upper piston is not pressed down, the supporting spring recovers its deformation, driving the upper piston and the closing plug to reset, and the air valve opens.

[0017] Furthermore, the top of the upper piston is connected to a trigger device for quantitatively pressing the upper piston downward.

[0018] Furthermore, the lower end cylinder of the trigger device is connected to the top of the upper end piston through a bearing, and can rotate coaxially relative to the upper end piston; the side wall of the lower end cylinder of the trigger device is provided with a radially extending limit pin, and a limit slot is provided below the limit pin, and the limit slot is fixedly connected to the piston cylinder, and the limit slot is provided with a multi-layer step structure with decreasing height along the circumference, and each step corresponds to a gear; when the limit pin rotates to different layers of steps, the downward movement distance of the downward pressure trigger device is different, and each time the limit pin rotates to a fixed step, the downward movement distance of the downward pressure trigger device remains unchanged, ensuring that the water output is accurate and consistent.

[0019] Furthermore, the dielectric barrier discharge structure further includes an electrode positive pole and an intermediate medium, wherein the intermediate medium is sandwiched between the electrode positive pole and the electrode negative pole.

[0020] A method for using a product-controllable plasma generating device comprises the following steps:

[0021] S1, device initialization: fill the water tank with water and move the upper piston to the highest position to ensure that the water level in the water tank is higher than the pipe;

[0022] S2, the operation process of the device:

[0023] Water injection discharge: Before pressing the upper piston, the water tank is connected to the atmosphere through the air valve so that the piston cylinder is filled with water; when the upper piston is pressed, the air valve closes, and a certain amount of water flows into the capillary water pipe. The outflow of water corresponds to the downward movement distance of the upper piston. The capillary water pipe evenly infiltrates the water into the negative electrode through multiple capillary pores evenly distributed; dielectric barrier discharge is started, and the corresponding product is obtained according to the amount of water injected;

[0024] Rebound and water replenishment: After the discharge treatment is completed, the pressure on the upper piston is released and reset; the water outlet of the piston cylinder is closed, the air valve is opened, and the water in the water tank enters the piston cylinder, so that the piston cylinder is filled with water, and the device returns to its initial position, waiting to enter the next cycle.

[0025] The invention discloses an application of a product-controllable plasma generating device in the disinfection of medical instruments and sensitive surfaces.

[0026] The beneficial effects of the present invention are:

[0027] (1) The present invention greatly reduces the reliance on electrical control and achieves equal control of water volume through a purely mechanical structure, successfully reducing the energy consumption of the device during use, reducing manufacturing costs, extending the device's battery life, and greatly improving the device's efficiency. When not in use, the upper piston will keep the water in the piston cylinder and will not communicate with the water distribution device; when in use, the upper piston pushes down and water will enter the water distribution device. Subsequently, during the rebound process, the water in the water tank will be sucked into the piston cylinder due to atmospheric pressure, and the amount of water will be the same as the amount of water used previously.

[0028] (2) Compared with existing plasma generators, the present invention does not require significant voltage adjustments to control the reaction products. Instead, it adjusts the electrode conductivity to precisely control the generated products. This is more accurate and reliable, and can be flexibly adjusted according to different needs, thereby achieving a more stable and efficient disinfection and sterilization effect. At the same time, the plasma generator can be miniaturized, making it easier to integrate into handheld devices, thereby improving user-friendliness.

[0029] (3) The plasma generator of the present invention has low energy consumption, and it is expected that the energy consumption can be reduced by up to 30%. The energy consumption of traditional plasma generators often exceeds 100 watts, while the design of the present invention can be controlled within 70 watts, which is suitable for daily household use; by optimizing energy use, operating costs and environmental burden are reduced.

[0030] (4) The plasma generator of the present invention has good heat management capabilities and effectively reduces heat generation. Tests show that after the device has been working continuously for 30 minutes, the temperature rise does not exceed 40°C, while traditional equipment may exceed 60°C. This simplifies the heat dissipation requirements, improves the stability and life of the equipment, and can cope with more usage needs and challenges.

[0031] (5) The plasma generator of the present invention has a reaction area with a large contact area with the air. The negative electrode is combined with the comb surface of a traditional pet comb. By cleverly arranging the comb teeth on the periphery of the negative electrode plate, the contact area with the pet hair is increased and the efficiency and coverage of disinfection and sterilization are effectively improved. Experimental data show that when the device of the present invention is used to disinfect pet hair, the sterilization rate is as high as 99.9%, while the sterilization rate of traditional brushes is usually around 70%. This significantly improves the disinfection and sterilization effect. The present invention not only simplifies the operating process, but also reduces energy consumption and heat management difficulty. At the same time, it makes the control of chemical reactions more precise and reliable, making the present invention show excellent application potential in the field of pet care. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 these drawings without paying any creative work.

[0033] Figure 1 It is a structural diagram of an embodiment of the present invention.

[0034] Figure 2 2 is a schematic diagram of the structure for controlling the rotation angle of the piston in an embodiment of the present invention.

[0035] Figure 3 Schematic diagram of the structure of the capillary water tube in an embodiment of the present invention.

[0036] Figure 4 Schematic diagram of the dielectric barrier discharge structure in an embodiment of the present invention.

[0037] Figure 5 2 is a schematic structural diagram of the comb teeth in an embodiment of the present invention.

[0038] Figure 6 It is a perspective view of an embodiment of the present invention and an assembly structure of a pet brush.

[0039] Figure 7 yes Figure 6 Front view of .

[0040] In the figure, 1. trigger device, 2. air valve, 3. piston cylinder, 4. water tank, 5. opening and closing device, 6. water distribution pipe, 7. capillary water tube, 8. upper piston, 9. positive electrode, 10. intermediate medium, 11. negative electrode, 12. pipe, 13. vertical pipe, 14. closing plug, 15. connection, 16. limit pin, 17. limit slot, 18. limit baffle, 19. comb teeth. DETAILED DESCRIPTION

[0041] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0042] The basic concept of the embodiment of the present invention is as follows:

[0043] The conductive properties of the electrodes in the plasma generator play a decisive role in the type of products and the ionization effect. In the embodiment of the present invention, a water-absorbing material is selected as the negative electrode and the conductivity of the electrode is adjusted by changing its water absorption. Under different water absorption states, the water filling ratio inside the material will vary, resulting in changes in its conductivity. When the voltage remains stable, this change will affect the plasma generation process, thereby generating different types of products and achieving a variety of disinfection effects.

[0044] Example 1,

[0045] A plasma generating device with controllable products, such as Figure 1 As shown, it includes a dielectric barrier discharge structure, which includes an electrode positive electrode 9, an intermediate medium 10 and an electrode negative electrode 11, and the electrode negative electrode 11 is made of a water-absorbing material.

[0046] The negative electrode 11 is connected to the water outlet of the piston cylinder 3 via a water distribution device. An upper piston 8 is mounted on the upper end of the piston cylinder 3, slidingly and sealingly connected to the inner wall of the piston cylinder 3, allowing it to move up and down. A water tank 4 surrounds the piston cylinder 3 in an annular shape, with the bottom of the water tank 4 connected to the piston cylinder 3 via a pipe 12. The water tank 4 is a container for storing water. As the entire device operates, the water inside the tank is absorbed by the water-absorbing material serving as the negative electrode 11 in a certain amount as needed, thereby changing the conductivity of the negative electrode 11.

[0047] like Figure 1 As shown, the bottom of the water tank 4 is higher than the maximum limit height of the upper piston 8, the piston cylinder 3 and the water tank 4 are always kept in communication, and an air valve 2 is provided at the upper end of the water tank 4, and the water tank 4 is connected to the atmosphere through the air valve 2. Using the principle of communicating vessels, when the water tank 4 is in contact with the atmosphere, the water level in the water tank 4 will remain consistent, thereby ensuring that the piston cylinder 3 is always full of water, and thus ensuring that the amount of water discharged each time is pressed is accurate and consistent.

[0048] A limit baffle 18 is provided on the top of the piston cylinder 3, and the upper end of the upper piston 8 extends through the top of the piston cylinder 3, that is, the upper end of the upper piston 8 extends through the through hole in the center of the limit baffle 18. When the upper piston 8 is at the maximum limit height, the axial position is limited by the limit baffle 18 to ensure that the highest point position of the upper piston 8 is consistent each time; the upper piston 8 has a radial extension at a position higher than the piston cylinder 3, and the starting part of the radial extension is at Figure 1As can be seen in the figure, it is located below the limit baffle 18. The upper part of the piston cylinder 3 (lower than the limit baffle 18 and higher than the height of the piston head of the upper piston 8) has four rectangular through-notches symmetrically arranged about the central axis on the cylinder wall. The radial extensions extend from the piston cylinder 3 from the notches respectively to ensure that the entire body including the upper piston 8 can move radially when pressed. The upper end of the support spring is in close contact with the bottom of the radial extension of the upper piston 8 (i.e. the starting part), and the lower end of the support spring is connected to the outer wall of the piston cylinder 3; when the upper piston 8 is pressed downward, the support spring is compressed, squeezing the water in the piston cylinder 3 into the water diversion device at the lower end. In the untriggered state, that is, the upper piston 8 is not pressed downward, the upper piston 8 is pushed to the highest point of the piston cylinder 3 by the elastic deformation of the support spring, and the limit baffle 18 presses against the piston at the highest point to prevent it from being directly separated from the entire device due to the upward force of the support spring.

[0049] Before pressing the upper piston 8, the water tank 4 is connected to the atmosphere through the air valve 2, and the piston cylinder 3 is filled with water; the port of the air valve 2 is provided with a closing plug 14, and the closing plug 14 is fixedly connected to the radial extension of the upper piston 8. When the upper piston 8 is pressed to move downward, the closing plug 14 moves downward at the same time, closing the air valve 2, thereby sealing the water tank 4 and ensuring that the water can be pressed out. At this time, the support spring is compressed; when the upper piston 8 is not pressed downward, the support spring recovers its deformation, driving the upper piston 8 and the closing plug 14 to reset, and the air valve 2 opens accordingly; the outflow of water is linearly related to the downward movement distance of the upper piston 8.

[0050] The water outlet of the piston cylinder 3 is annular and is provided on the cylinder wall of the piston cylinder 3 and is located below the pipe 12 .

[0051] The water distribution device includes a water distribution pipe 6, a vertical pipe 13, and a capillary water pipe 7. The water distribution pipe 6 is distributed in a scattered pattern around the piston cylinder 3. The side of the water distribution pipe 6 away from the piston cylinder 3 is lower than the side close to the piston cylinder 3, forming a slope. The side of the water distribution pipe 6 close to the piston cylinder 3 is located at the water outlet of the piston cylinder 3, and the water inlet of the water distribution pipe 6 contacts the piston cylinder 3. The side of the water distribution pipe 6 away from the piston cylinder 3 is connected to the edge of the capillary water pipe 7 through the vertical pipe 13. The diameter of the vertical pipe 13 gradually decreases from top to bottom, and the lower end of the vertical pipe 13 approaches the diameter of the capillary water pipe 7.

[0052] An opening and closing device 5 is provided at the bottom of the piston cylinder 3, and the opening and closing device 5 includes a piston and a spring. A radially extending sealing gasket is provided at the edge of the piston head, and a spring is provided between the piston head and the inner bottom wall of the piston cylinder 3; the thickness of the piston head edge of the opening and closing device 5 is greater than the width of the water outlet of the piston cylinder 3 of the water distribution pipe 6, and is used to control whether the water distribution pipe 6 and the piston cylinder 3 are connected.

[0053] When upper piston 8 is pressed downward, air valve 2 closes, and the water in piston cylinder 3 pushes the piston head of opening and closing device 5 downward. Opening and closing device 5 is opened, and the spring is compressed, causing a fixed amount of water in piston cylinder 3 to flow out and enter water distribution pipe 6. The water flows from the center of water distribution pipe 6 using the downward slope to spread outward, and then directly falls to capillary water pipe 7 through vertical pipe 13. This ensures that the water flowing out of piston cylinder 3 is evenly transported to capillary water pipe 7. Capillary water pipe 7, through multiple evenly distributed capillary pores, evenly infiltrates the water into the negative electrode 11. The amount of water flowing out of piston cylinder 3 corresponds to the downward movement distance of upper piston 8. After the water in piston cylinder 3 flows out, the spring of opening and closing device 5 recovers its deformation, pushing the piston head to seal the water outlet of piston cylinder 3. After air valve 2 is opened, due to the principle of communicating vessels, water in water tank 4 enters piston cylinder 3, filling piston cylinder 3 with water.

[0054] The spring of the opening and closing device 5 has a high elastic coefficient. The spring is not compressed except by the gravity of the water above. This allows the opening and closing device 5 to remain closed even when the piston cylinder 3 is filled with water. That is, the piston of the opening and closing device 5 reaches its upper limit. As long as the upper piston 8 is not pressed downward, the opening and closing device 5 will maintain the water inlet of the water distribution pipe 6 closed. The edge of the piston head of the opening and closing device 5 is made of silicone material to prevent water in the piston cylinder 3 from flowing into the water distribution pipe 6 through the gap.

[0055] like Figure 3 As shown, the capillary water tubes 7 extend from the center in fourteen directions, forming a star-shaped distribution to achieve uniform water flow from the bottom. The center is the lowest point, and the line connecting it to the outermost point has a certain but slight slope of 1-2 degrees, which facilitates water flow toward the center. If the inclination is too large, the negative electrode material will be too thick and reaction will not be easy to occur.

[0056] Capillary water tube 7 is in direct contact with the plasma generator's negative electrode 11, delivering water evenly to the absorbent material through a drip irrigation system. Equally spaced pores (capillaries) on the surface of capillary water tube 7 ensure even distribution of water. This design effectively prevents excessive water absorption by the negative electrode 11, thereby maintaining the balance and stable operation of the entire device.

[0057] like Figure 4 As shown, a star-shaped groove for installing a capillary water tube 7 is reserved on the upper side of the negative electrode 11, and the groove is not through-connected from top to bottom; the capillary water tube 7 is fixed in the groove of the negative electrode 11, and the capillary water tube 7 discharges water through the capillary pores (small holes) and evenly delivers the water to the inside of the water-absorbing material.

[0058] The form of the trigger device 1 is determined according to the specific application scenario. When pressed downward by hand, the plasma generating device starts to operate, and the device will stop operating after being released. It can also be an electrically driven button. The trigger device 1 plays the role of pressing the upper piston 8. In the embodiment, the trigger device 1 is located above the upper piston 8. A bearing is installed at the connection 15 between the trigger device 1 and the upper piston 8. The outer ring of the bearing is fixedly connected with the top end of the upper piston 8, and the inner ring of the bearing is fixedly connected with the lower end cylinder of the trigger device 1. The trigger device 1 can rotate coaxially relative to the upper piston 8.

[0059] Water quantity control mechanism:

[0060] As shown in Figure 2 The side wall of the lower end cylinder of the trigger device 1 is fixedly connected with a radially extending limiting needle 16. The lower end of the limiting needle 16 is provided with a limiting clamping groove 17, which is fixedly connected with the outer wall of the piston cylinder 3 and located at the upper end of the limiting baffle 18. The limiting clamping groove 17 is composed of five circumferentially distributed stops. Each stop is lower in height than the previous stop, presenting a multi-layered stepped structure with decreasing height.

[0061] Figure 2 In the embodiment, the limiting needle 16 is in gear one, i.e., the highest layer of the stepped structure. At this time, the limiting needle 16 has no space to descend, i.e., the trigger device 1 integrated with the limiting needle 16 cannot be pressed downward, i.e., cannot be triggered, i.e., cannot make the upper piston 8 move downward. When the trigger device 1 moves clockwise, the limiting needle 16 moves clockwise and moves above the second stop, leaving a space for descending. At this time, the trigger device 1 can be pressed downward to move the upper piston 8 downward. Because the limiting clamping groove 17 has multiple layers of steps, the limiting needle 16 rotates to different layers of steps, and the distance of the downward movement of the trigger device 1 is different. As long as the relative position of the limiting needle 16 relative to the limiting clamping groove 17 is unchanged (the limiting needle 16 rotates to a certain fixed step each time), the downward stroke obtained by each pressing will not change, i.e., the downward stroke of the upper piston 8 will not change, ensuring that the water quantity is accurate and consistent.

[0062] Electrode action mechanism:

[0063] As shown in Figure 4As shown, the dielectric barrier discharge structure includes an anode electrode 9, an intermediate dielectric 10, and a cathode electrode 11. The intermediate dielectric 10 is sandwiched between the anode electrode 9 and the cathode electrode 11. Using dielectric barrier discharge technology, non-thermal plasma is generated by applying a high-frequency or high-voltage AC voltage between the two electrodes. One or more layers of dielectric material, such as glass, ceramic, or quartz, are sandwiched between the electrodes to prevent direct electrical contact between them. When the applied voltage changes, resulting in an electric field strength sufficient to excite and ionize molecules and atoms in the gas, free electrons are accelerated and collide with gas molecules, triggering molecular ionization and generating more electrons and ions. This is an ionization chain reaction.

[0064] When a localized breakdown of the gas occurs, tiny discharge channels, or microdischarges, form. However, due to the presence of the dielectric material, each microdischarge is extremely brief, typically lasting between nanoseconds and microseconds. Electrons quickly accumulate on the dielectric surface, forming localized charges that weaken the electric field and terminate the discharge. These brief microdischarges are distributed randomly across the discharge area at multiple points, ensuring uniformity and stability. As the AC voltage cyclically varies, the electric field also changes, and the discharge process repeats, forming new discharge channels and continuously generating plasma. The presence of the dielectric material prevents the formation of sustained arcs, minimizing the risk of overheating and material damage.

[0065] Changing the conductivity of the plate can profoundly affect the internal electric field distribution, electron density, and electron temperature, all of which play a key role in chemical reactions in the plasma. Highly conductive plates generate a stronger electric field, allowing free electrons to acquire higher kinetic energy within the field. When these high-energy electrons collide with gas molecules, they excite or ionize them, generating more ions and free radicals. These active species are the core driving force behind chemical reactions in the plasma.

[0066] Furthermore, increased conductivity leads to an increase in electron density, meaning more free electrons in the plasma. Frequent collisions between these electrons and gas molecules increase reaction rates and enrich the variety of reaction products. Furthermore, the conductivity of the plate also affects the plasma's electron temperature—the average energy of the free electrons. A higher electron temperature allows more gas molecules to reach excited or ionized states, thereby promoting high-energy chemical reactions.

[0067] By adjusting the conductivity of the plate, embodiments of the present invention can precisely control the electric field strength, electron density, and electron temperature, thereby selecting a specific chemical reaction path and generating the desired product. This approach provides greater flexibility in the application of plasma technology. Adjusting the plate conductivity allows for the selection of a kill path tailored to specific pathogens, avoiding overheating or damage to the surface of the sterilized item, making it particularly suitable for the efficient disinfection of medical instruments and sensitive surfaces.

[0068] There are no specific requirements for the size and shape of the positive electrode 9, intermediate dielectric 10, and negative electrode 11. In the embodiments of the present invention, dielectric barrier discharge technology is used to ionize the air, creating plasma activity in the air near the negative electrode 11, thereby achieving a sterilizing and disinfecting effect. The positive electrode 9, negative electrode 11, and intermediate dielectric 10 do not necessarily need to be circular; in this embodiment, they are circular to match the overall structure.

[0069] like Figure 4 As shown, the positive electrode 9, the intermediate medium 10 and the negative electrode 11 have overlapping areas.

[0070] Example 2,

[0071] A method for using a product-controllable plasma generating device comprises the following steps:

[0072] S1, device initialization:

[0073] Fill the water tank 4 with water, move the upper piston 8 to the highest position, and calibrate the current position (make sure the water level in the water tank 4 is higher than the pipe 12). This is a key step to ensure the accuracy of subsequent volume measurements.

[0074] S2, after completing initialization, the device will present two main states during normal operation: water injection and discharge, and rebound water replenishment.

[0075] Water injection discharge: before pressing the upper piston 8, the water tank 4 is connected to the atmosphere through the air valve 2 so that the piston cylinder 3 is filled with water; press the upper piston 8, and the closing plug 14 fixed to it closes the air valve 2, so that the water tank 4 is not connected to the atmosphere. Since water is extremely difficult to compress, the amount of water pushed will be equal to the injection amount. The downward movement distance of the upper piston 8 is equal to the lowering distance of the piston in the opening and closing device 5. After the descent, the opening and closing device 5 is in the open state, and the water flows into the water distribution pipe 6, and then penetrates into the negative electrode 11 through the capillary water tube 7; start the dielectric barrier discharge, and the corresponding products obtained are different according to the different water injection amounts.

[0076] Rebound and Replenish Water: After the discharge process is completed, the upper piston 8 is released and reset (to its initial height). During the rebound process, a certain volume of water has flowed out (here, the certain volume is the product of the cross-sectional area of ​​the piston cylinder 3 and the distance it has descended), and the piston in the opening and closing device 5 will re-up, closing the opening and closing device 5. At this time, the air valve 2 is opened again, connecting the water tank 4 to the atmosphere. The water in the water tank 4 is sucked into the piston cylinder 3, filling it with water. The device returns to its initial position and waits for the next cycle. Pressing the button again will repeat the above process.

[0077] Example 3,

[0078] like Figure 5-7 As shown, the product of Example 1 is a controllable plasma generator for disinfection of medical instruments and sensitive surfaces. Specifically, the plasma generator is installed on the main body of the brush, and the push-type trigger is paired with the pet combing device. The comb teeth 19 of the brush are not directly connected to the capillary water tube 7. The capillary water tube 7 is fixed to the groove of the electrode negative electrode 11, and the comb teeth 19 are also fixed to the groove of the electrode negative electrode 11. The specific structure of the comb teeth 19 is as follows. Figure 5 As shown, the surface of the negative electrode 11 ionizes air to produce plasma products, which are then distributed at the base of the comb teeth 19 and discharged through the capillaries on the comb teeth 19 to adhere to the pet's hair. The comb teeth 19 mainly function to separate the pet's hair. By pressing the upper piston 8 to varying degrees, specific chemical or physical reactions are generated, generating activated products with bactericidal properties, which kill various bacteria and pathogens attached to the pet's hair.

[0079] The embodiments of the present invention are not limited to the aforementioned bacteria and pathogens but can be extended to other types of microorganisms, demonstrating their broad adaptability and potential applications. This can eliminate the five most common and abundant pathogens on pet hair, meeting pet owners' fundamental needs for pet skin hygiene and health.

[0080] In the field of pet care, cleaning and caring for pet hair is an important part. Common pet brushes currently on the market are mainly used to remove dust, impurities, and shed hair from pets. However, ordinary brushes cannot achieve a sterilization function, which to a certain extent limits their application effect in pet care. Although plasma technology has been widely used in the field of sterilization and disinfection, the existing plasma generator structure is not suitable for direct use with pet brushes. The embodiments of the present invention control the plasma generating device to produce different products, thereby achieving different application effects to meet different needs. It can produce different products to meet the needs of pet brushes and achieve an efficient and safe sterilization function.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A product-controllable plasma generating device, comprising a dielectric barrier discharge structure, characterized in that: The negative electrode (11) of the dielectric barrier discharge structure is made of a water-absorbing material; A capillary water tube (7) is provided in the negative electrode (11), and the capillary water tube (7) is connected to the water outlet of the piston cylinder (3). An upper piston (8) is installed at the upper end of the piston cylinder (3). A water tank (4) is provided at a position higher than the maximum limit height of the upper piston (8). The water tank (4) is annularly arranged around the piston cylinder (3). The bottom of the water tank (4) is connected to the piston cylinder (3) through a pipe (12). Before pressing the upper piston (8), the water tank (4) is connected to the atmosphere through the air valve (2), and the piston cylinder (3) is filled with water. When the upper piston (8) is pressed, the air valve (2) is closed, and a certain amount of water flows to the capillary water tube (7), and then evenly penetrates into the negative electrode (11). The outflow of water is linearly related to the downward movement distance of the upper piston (8). The water outlet of the piston cylinder (3) is annular and is located below the pipe (12); an opening and closing device (5) is provided at the bottom of the piston cylinder (3), and the opening and closing device (5) includes a piston and a spring, a sealing gasket is provided at the edge of the piston head, and a spring is provided between the piston head and the inner bottom wall of the piston cylinder (3); when the upper piston (8) is pressed down, the water in the piston cylinder (3) pushes the piston head of the opening and closing device (5) downward, the spring is compressed, and the water outlet of the piston cylinder (3) is opened. After the water flows out, the spring recovers its deformation and pushes the piston head to seal the water outlet of the piston cylinder (3); after the air valve (2) is opened, due to the principle of communicating vessels, the water in the water tank (4) enters the piston cylinder (3), and the piston cylinder (3) is filled with water; The water distribution pipe (6) is distributed around the piston cylinder (3) in a scattered shape. The side of the water distribution pipe (6) away from the piston cylinder (3) is lower than the side close to the piston cylinder (3), forming a slope. The side of the water distribution pipe (6) close to the piston cylinder (3) is located at the water outlet of the piston cylinder (3). The side of the water distribution pipe (6) away from the piston cylinder (3) is connected to the capillary water pipe (7) through a vertical pipe (13), so that the water flowing out of the piston cylinder (3) is evenly distributed to the capillary water pipes (7) distributed in a star-shaped manner.

2. A product-controllable plasma generating device according to claim 1, characterized in that: Grooves distributed in a star-shaped pattern are provided on the negative electrode (11), and the capillary water tubes (7) are fixed in the grooves.

3. The product-controllable plasma generating device according to claim 1, characterized in that: The port of the air valve (2) is provided with a closing plug (14), which is fixedly connected to the upper piston (8), and a supporting spring is provided between the upper piston (8) and the outer wall of the piston cylinder (3); when the upper piston (8) is pressed down and moves downward, the closing plug (14) moves downward at the same time, closing the air valve (2) and compressing the supporting spring; when the upper piston (8) is not pressed down, the supporting spring recovers its deformation, driving the upper piston (8) and the closing plug (14) to reset, and the air valve (2) opens.

4. The product-controllable plasma generating device according to claim 1, characterized in that: The top of the upper piston (8) is connected to the trigger device (1) and is used to quantitatively press the upper piston (8) downward.

5. The product-controllable plasma generating device according to claim 4, characterized in that: The lower cylindrical body of the trigger device (1) is connected to the top of the upper piston (8) through a bearing and can rotate coaxially relative to the upper piston (8); a radially extending limit pin (16) is provided on the side wall of the lower cylindrical body of the trigger device (1); a limit slot (17) is provided below the limit pin (16); the limit slot (17) is fixedly connected to the piston cylinder (3); the limit slot (17) is provided with a multi-layer step structure with decreasing height along the circumference, and each step corresponds to a gear position; when the limit pin (16) rotates to different steps, the downward movement distance of the trigger device (1) is different; each time the limit pin (16) rotates to a fixed step, the downward movement distance of the trigger device (1) remains unchanged, thereby ensuring that the water output is accurate and consistent.

6. The product-controllable plasma generating device according to claim 1, characterized in that: The dielectric barrier discharge structure further comprises an electrode positive pole (9) and an intermediate medium (10), wherein the intermediate medium (10) is sandwiched between the electrode positive pole (9) and the electrode negative pole (11).

7. The method for using the product-controllable plasma generator according to claim 1, wherein: The following steps are involved: S1, device initialization: fill the water tank (4) with water and move the upper piston (8) to the highest position to ensure that the water level in the water tank (4) is higher than the pipe (12); S2, the operation process of the device: Water injection discharge: before pressing the upper piston (8), the water tank (4) is connected to the atmosphere through the air valve (2) so that the piston cylinder (3) is filled with water; when the upper piston (8) is pressed, the air valve (2) is closed, and a certain amount of water flows into the capillary water pipe (7), and the outflow of water corresponds to the downward movement distance of the upper piston (8). The capillary water pipe (7) evenly infiltrates the water into the negative electrode (11) through multiple capillary pores evenly distributed; dielectric barrier discharge is started, and corresponding products are obtained according to the amount of water injected; Rebound water replenishment: After the discharge treatment is completed, the upper piston (8) is released from the pressure and reset; the water outlet of the piston cylinder (3) is closed, the air valve (2) is opened, and the water in the water tank (4) enters the piston cylinder (3), so that the piston cylinder (3) is filled with water, and the device returns to the initial position and waits to enter the next cycle.

8. Use of the product-controllable plasma generator as claimed in claim 1 in the disinfection of medical instruments.

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