An arrayed plasma generator

Abstract

The utility model discloses an array type plasma generator, including first discharge electrode, second discharge electrode and the medium of setting between first discharge electrode and second discharge electrode, constitute a plurality of discharge cross section bodies on first discharge electrode, the discharge cross section body abuts the medium, and constitute the release gap between discharge cross section body.

Description

Technical Field

[0001] This utility model relates to the field of plasma generator technology, specifically to an array-type plasma generator. Background Technology

[0002] Plasma generators play an important role in daily life, providing efficient solutions for air purification, medical disinfection, and food preservation. They generate low-temperature plasma by ionizing gas to decompose formaldehyde, bacteria, and odor molecules in the air, improving indoor air quality. In the medical field, they can quickly inactivate viruses and bacteria for instrument disinfection. They can also extend the shelf life of food and inhibit mold growth. Compared with traditional technologies, plasma treatment is more environmentally friendly, leaves no chemical residues, and consumes less energy. It is suitable for various scenarios such as homes, hospitals, and supermarkets, safely and conveniently improving the living environment.

[0003] Conventional plasma generators mainly rely on single-point electrodes for discharge. Limited by the single discharge channel design, the effective processing area is too small, making it difficult to meet the needs of large-area industrial processing. Most importantly, the plasma density generated by this structure has poor uniformity, which seriously affects process consistency and product quality. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes an array-type plasma generator.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] An array-type plasma generator includes a first discharge electrode, a second discharge electrode, and a medium disposed between the first discharge electrode and the second discharge electrode. The first discharge electrode has a plurality of discharge cross-sections, which abut against the medium, and the discharge cross-sections form a release gap.

[0007] Preferably, the first discharge electrode includes an electrode body, the discharge cross-section extends on the electrode body, and a release gap is formed between the electrode body and the medium. Through the above improvements, each discharge cross-section forms an independent ionization channel, the total ionization efficiency is significantly improved compared with the single-point design, the release gap is significantly increased, and the heat dissipation effect is effectively improved.

[0008] Preferably, the discharge cross-section is cylindrical. By making the discharge cross-section cylindrical, the electric field distribution can be smoother and the problem of excessive local discharge caused by the tip discharge can be avoided. The cylinder has low resistance to gas flow and is suitable for high-speed airflow environment to improve heat dissipation.

[0009] Preferably, the discharge cross-section is arranged in the form of a polygonal prism. Through the above improvements, it can be artificially designed as a discharge hotspot, precisely enhancing the local ionization intensity, and making it easier to arrange closely to form a uniform array discharge, thereby improving the efficiency of large-area processing.

[0010] Preferably, the second discharge electrode is arranged in a sheet shape, the second discharge electrode is attached to one side of the medium, and the discharge cross-section body abuts against the other side of the medium. Through the above improvements, the discharge cross-section body abuts against the other side of the medium, and discharges in parallel through multiple release gaps, which greatly improves the plasma density and uniformity.

[0011] Preferably, there are two first discharge electrodes and two dielectric materials. The dielectric materials are attached to both sides of the second discharge electrode. The discharge cross-section of one first discharge electrode abuts against one dielectric material, and the discharge cross-section of the other first discharge electrode abuts against another dielectric material. With the above improvement, the two first discharge electrodes with discharge cross-sections form a discharge circuit with the central sheet-like second discharge electrode through the dielectric material. The uniform plasma is excited synchronously by the dual electric fields to achieve high-density ionization, which is particularly suitable for scenarios that require large-area processing.

[0012] Preferably, the second discharge electrode also has several discharge cross-sections, and the discharge cross-sections of the first and second discharge electrodes are respectively in contact with both sides of the medium. With the above improvements, when a high voltage is applied, the discharge cross-sections on the first and second discharge electrodes will simultaneously form strong electric field concentration points on both sides of the medium. Gas ionization occurs first at the edge of the discharge cross-section of the electrode, and the generated charged particles pass through the surface of the medium under the action of the alternating electric field to form a bidirectional plasma channel. Due to the symmetrical arrangement of the discharge cross-section arrays on both sides, the plasma diffuses synchronously and uniformly on both sides of the medium, and finally forms a high-density, large-area uniform low-temperature plasma layer in the electrode gap.

[0013] Preferably, the number of discharge cross-sections is 3-20. Through the above improvements, the number of discharge cross-sections can be set according to the needs to adapt to different usage scenarios.

[0014] Preferably, the first discharge electrode is made of aluminum alloy or stainless steel, the second discharge electrode is made of stainless steel or titanium, and the medium is a quartz or ceramic sheet. Through the above improvements, the oxide layer on the electrode surface can improve the resistance to arc corrosion, ensure stable current transmission, reduce energy loss, and the quartz / ceramic medium can effectively block the arc and maintain the stability of low-temperature plasma.

[0015] Preferably, the first discharge electrode and the second discharge electrode are made of the same material, both of which are aluminum alloy or stainless steel, and the medium is a quartz or ceramic sheet. Through the above improvements, the homogeneous material eliminates the potential difference between dissimilar metals, thereby improving the uniformity of the electric field and the heat dissipation effect.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] By combining a first discharge electrode, a second discharge electrode, and a dielectric, the first discharge electrode is formed with several discharge cross-sections. The discharge cross-sections abut against the dielectric, and release gaps are formed between the discharge cross-sections. The discharge area is greatly increased by using multiple discharge cross-sections, and the plasma density is made uniform. Each discharge cross-section forms an independent ionization channel, and the total ionization efficiency is greatly improved compared with a single-point design. In addition, the release gaps increase the contact area with air, thereby greatly improving the heat dissipation effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the third embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the fourth embodiment of the present invention.

[0022] Figure 5 This is a structural schematic diagram of the fifth embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the sixth embodiment of the present invention.

[0024] Figure 7 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0025] In the figure: 1. First discharge electrode; 2. Second discharge electrode; 3. Medium; 4. Release gap; 5. Discharge cross-section; 6. Electrode body; Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0028] Example 1

[0029] like Figure 1-6 As shown, an array-type plasma generator includes a first discharge electrode 1, a second discharge electrode 2, and a medium 3 disposed between the first discharge electrode 1 and the second discharge electrode 2. The first discharge electrode 1 has a plurality of discharge cross-sections 5, which abut against the medium 3, and release gaps 4 are formed between the discharge cross-sections 5.

[0030] Furthermore, the first discharge electrode 1 includes an electrode body 6, a discharge cross-section body 5 extending on the electrode body 6, and a release gap 4 is formed between the electrode body 6 and the medium 3.

[0031] By utilizing multiple discharge cross-sections 5, the discharge area is significantly increased, and the plasma density is made uniform. Each discharge cross-section 5 forms an independent ionization channel, which greatly improves the total ionization efficiency compared to the single-point design. This also significantly increases the release gap 4 and effectively enhances the heat dissipation effect.

[0032] like Figure 1-6 As shown, as a further explanation of the cooperation between the first discharge electrode 1, the second discharge electrode 2, and the medium 3, the second discharge electrode 2 is arranged in a sheet shape and is attached to one side of the medium 3, while the discharge cross-section body 5 abuts against the other side of the medium 3. The discharge cross-section body 5 abuts against the other side of the medium 3 and discharges in parallel through multiple release gaps 4, which greatly improves the plasma density and uniformity.

[0033] like Figure 1-6 As shown, in a further explanation of the embodiment of the discharge cross-section 5, the discharge cross-section 5 is set in the form of a cylinder. Setting the discharge cross-section 5 in the form of a cylinder can not only make the electric field distribution smoother, but also avoid the problem of local over-intensity caused by tip discharge. The cylinder has low resistance to gas flow and is suitable for high-speed airflow environment to improve heat dissipation.

[0034] Furthermore, the discharge cross-section 5 is set in the form of a polygonal prism, which can be artificially designed as a discharge hot spot to precisely enhance the local ionization intensity and make it easier to arrange closely to form a uniform array discharge, thereby improving the efficiency of large-area processing.

[0035] Preferably, the number of discharge cross-section bodies 5 is 3-20, and the number of discharge cross-section bodies 5 can be set according to the needs to adapt to different application scenarios.

[0036] like Figure 1-6As shown, further explanations are provided regarding the first discharge electrode 1, the second discharge electrode 2, and the dielectric 3. The first discharge electrode 1 is made of aluminum alloy or stainless steel, and the second discharge electrode 2 is made of stainless steel or titanium. Other materials with high oxidation resistance, high corrosion resistance, high conductivity, high temperature resistance, thermal shock resistance, and good mechanical strength can also be selected to ensure stable current transmission and reduce energy loss. The dielectric 3 is a quartz or ceramic sheet. The quartz / ceramic dielectric 3 effectively blocks the electric arc and maintains the stability of the low-temperature plasma.

[0037] The second discharge electrode 2 can be replaced with a metal foil.

[0038] Example 2

[0039] like Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that there are two first discharge electrodes 1 and two dielectrics 3. The dielectric 3 is attached to the second discharge electrode 2. The discharge cross-section 5 of one first discharge electrode 1 abuts against one dielectric 3, and the discharge cross-section 5 of the other first discharge electrode 1 abuts against another dielectric 3. The two first discharge electrodes 1 with discharge cross-sections 5 respectively form a discharge circuit with the central sheet-like second discharge electrode 2 through the dielectric 3. The uniform plasma is excited synchronously by the dual electric fields to achieve high-density ionization, which is particularly suitable for scenarios that require large-area processing.

[0040] Example 3

[0041] The difference between this embodiment and Embodiment 1 is that a plurality of discharge cross-sections 5 are also formed on the second discharge electrode 2, and the discharge cross-sections 5 of the first discharge electrode 1 and the second discharge electrode 2 respectively abut against both sides of the medium 3. When a high voltage is applied, the discharge cross-sections 5 on the first discharge electrode 1 and the second discharge electrode 2 will simultaneously form strong electric field concentration points on both sides of the medium 3. Gas ionization occurs first at the edge of the discharge cross-section 5 of the electrode, and the generated charged particles pass through the surface of the medium 3 under the action of the alternating electric field to form a bidirectional plasma channel. Due to the symmetrical arrangement of the array of discharge cross-sections 5 on both sides, the plasma diffuses synchronously and uniformly on both sides of the medium 3, and finally forms a high-density, large-area uniform low-temperature plasma layer in the electrode gap.

[0042] Furthermore, the first discharge electrode 1 and the second discharge electrode 2 are made of the same material, both of which are made of aluminum alloy or stainless steel, which is equivalent to two first discharge electrodes 1 in combination. The dielectric 3 is a quartz or ceramic sheet. The use of the same material for the two electrodes eliminates the potential difference between dissimilar metals, thereby improving the uniformity of the electric field and the heat dissipation effect.

[0043] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An array-type plasma generator, characterized in that, It includes a first discharge electrode (1), a second discharge electrode (2), and a medium (3) disposed between the first discharge electrode (1) and the second discharge electrode (2). The first discharge electrode (1) is provided with a plurality of discharge cross-sections (5), the discharge cross-sections (5) abut against the medium (3), and the discharge cross-sections (5) form a release gap (4).

2. An array-type plasma generator according to claim 1, characterized in that: The first discharge electrode (1) includes an electrode body (6), the discharge cross-section (5) extends on the electrode body (6), and a release gap (4) is formed between the electrode body (6) and the medium (3).

3. An array-type plasma generator according to claim 1, characterized in that: The discharge cross-section (5) is cylindrical.

4. An array-type plasma generator according to claim 1, characterized in that: The discharge cross-section (5) is arranged in the form of a polygonal prism.

5. An array-type plasma generator according to claim 1, characterized in that: The second discharge electrode (2) is arranged in a sheet shape, and the second discharge electrode (2) is attached to one side of the medium (3), while the discharge cross section (5) abuts against the other side of the medium (3).

6. An array-type plasma generator according to claim 1, characterized in that: There are two first discharge electrodes (1) and two media (3). The media (3) is attached to both sides of the second discharge electrode (2). The discharge cross-section (5) of one first discharge electrode (1) abuts against one medium (3), and the discharge cross-section (5) of the other first discharge electrode (1) abuts against another medium (3).

7. An array-type plasma generator according to claim 1, characterized in that: The second discharge electrode (2) also has several discharge cross-sections (5), and the discharge cross-sections (5) of the first discharge electrode (1) and the second discharge electrode (2) respectively abut against both sides of the medium (3).

8. An array-type plasma generator according to claim 1, characterized in that: The number of discharge cross-section bodies (5) is 3-20.

9. An array-type plasma generator according to claim 4 or 5, characterized in that: The first discharge electrode (1) is made of aluminum alloy or stainless steel, the second discharge electrode (2) is made of stainless steel or titanium, and the medium (3) is a quartz or ceramic sheet.

10. An array-type plasma generator according to claim 6, characterized in that: The first discharge electrode (1) and the second discharge electrode (2) are made of the same material, both of which are made of aluminum alloy or stainless steel, and the medium (3) is a quartz or ceramic sheet.

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