CN112672487A - Plasma generator with flat plate type dielectric barrier discharge structure - Google Patents
Plasma generator with flat plate type dielectric barrier discharge structure Download PDFInfo
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- CN112672487A CN112672487A CN202110038363.4A CN202110038363A CN112672487A CN 112672487 A CN112672487 A CN 112672487A CN 202110038363 A CN202110038363 A CN 202110038363A CN 112672487 A CN112672487 A CN 112672487A
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Abstract
本发明公开一种平板式介质阻挡放电结构的等离子发生器，包括介质阻挡放电单元和两个塑料卡件；介质阻挡放电单元包括内电极板、两块介质板和两块外电极板，外电极板均包括外电极板本体和从外电极板本体的两条长侧边朝同一方向弯折形成的折边，每个折边的两端均设有第一扣孔，两块外电极板位于同一条长侧边的折边重叠设置且对应末端的第一扣孔的位置重合；塑料卡件包括卡座，卡座的一末端设有卡接槽，在卡接槽的两相对槽壁均设有第一卡扣；介质阻挡放电单元的两个短侧边分别插入两个塑料卡的卡接槽内，第一卡扣分别与对应位置的第一扣孔扣合相连。本发明的等离子发生器具有较佳的杀菌消毒效果。
The invention discloses a plasma generator with a flat-plate dielectric barrier discharge structure, comprising a dielectric barrier discharge unit and two plastic clips; the dielectric barrier discharge unit includes an inner electrode plate, two dielectric plates and two outer electrode plates. Each of the plates includes an outer electrode plate body and a fold formed by bending two long sides of the outer electrode plate body in the same direction. The two ends of each fold are provided with a first button hole, and the two outer electrode plates are located at the same direction. The folds of the same long side are overlapped and the positions of the first button holes at the corresponding ends overlap; the plastic clip includes a clip, one end of the clip is provided with a clip slot, and two opposite groove walls of the clip slot are A first buckle is provided; the two short sides of the dielectric barrier discharge unit are respectively inserted into the clamping grooves of the two plastic cards, and the first buckles are respectively buckled and connected with the corresponding first button holes. The plasma generator of the present invention has better sterilization and disinfection effects.
Description
Technical Field
The invention relates to the field of ionizers, in particular to a plasma generator with a flat plate type dielectric barrier discharge structure.
Background
This section merely provides background information related to the present application so as to enable those skilled in the art to more fully and accurately understand the present application, which is not necessarily prior art.
The conventional flat plate type plasma generator on the market at present adopts plastic parts to cover and fix four end surfaces of a flat plate type dielectric barrier discharge structure, and the plastic parts of the four end surfaces wrap one part of the dielectric barrier discharge structure to limit and fix.
This structure has the following drawbacks: because each working of plastics will wrap up some outer electrodes and just can spacing fixed, and the working of plastics has certain thickness, the surface that leads to meeting the working of plastics is higher than the surface of outer electrode, make the surface of outer electrode lie in the working of plastics of side all around enclose to close among the circumference that forms and surround sunken, so positive and negative ion that the during operation generated gathers easily on the surface of outer electrode and is difficult for giving off, not only lead to the positive and negative ion of gathering to form ozone easily, still can lead to the positive and negative ion that scatters in the air to lead to the disinfection effect of disinfecting less poor less, the working of plastics still can gather electric charge and form electrostatic field and cause potential harm to other electric property.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the plasma generator with the flat-plate type dielectric barrier discharge structure, which has the advantages that the generated positive and negative ions are easy to diffuse, and the good sterilization and disinfection effects are realized.
The invention provides a plasma generator with a flat plate type dielectric barrier discharge structure, which comprises a dielectric barrier discharge unit and two plastic clamping pieces;
the dielectric barrier discharge unit comprises an inner electrode plate, two dielectric plates and two outer electrode plates, wherein the two dielectric plates are respectively positioned on two side surfaces of the inner electrode plate, each outer electrode plate comprises a tabular outer electrode plate body and folded edges formed by bending two long side edges of the outer electrode plate body towards the same direction, two ends of each folded edge are respectively provided with a first buckling hole, the two outer electrode plates are oppositely arranged on the outer side surfaces of the two dielectric plates, the folded edges of the two outer electrode plates positioned on the same long side edge are overlapped, and the positions of the first buckling holes corresponding to the tail ends are superposed;
the plastic clamping piece comprises a clamping seat, wherein a clamping groove is formed in one end of the clamping seat, the width of the clamping groove is matched with the width of the short side edge of the outer electrode plate, and first clamping buckles are arranged on two opposite groove walls of the clamping groove;
the two plastic clamping pieces are respectively clamped on two short side edges of the dielectric barrier discharge unit, the two short side edges of the dielectric barrier discharge unit are respectively inserted into clamping grooves of the two plastic clamping pieces, and the first clamping buckle is respectively buckled with the first buckling hole of the corresponding position.
In a preferred embodiment, a limiting rib is arranged in the clamping groove, and when the short side edge of the dielectric barrier discharge unit is clamped in the clamping groove of the clamping seat, the limiting rib abuts against the short side edge of the dielectric barrier discharge unit.
In a preferred embodiment, the plastic card further comprises a cover plate detachably connected to the card holder, the cover plate being at least partially pressed against the short side of the dielectric barrier discharge unit when the cover plate is mounted on the card holder.
In a preferred embodiment, a second buckle is arranged on the outer side surface of the clamping seat, a fixing arm extending downwards is arranged on the cover plate, a second buckle hole is arranged on the fixing arm, and the second buckle is connected with the second buckle hole in a buckling mode when the cover plate is arranged on the clamping groove.
In a preferred embodiment, the end of the folded edge extends outwards from the short side edge of the outer electrode plate body to form an extension end part, and the first fastening hole is arranged on the extension end part; or/and the groove wall of the clamping groove extends out of the extending arm, and the first buckle is arranged on the extending arm.
In a preferred embodiment, the outer electrode plate is grounded and the inner electrode plate is electrically connected to a high voltage power supply.
In a preferred embodiment, a first terminal is provided on one short side of the inner electrode plate and a second terminal is provided on the corresponding short side of one of the outer electrode plates.
In a preferred embodiment, the other end of one of the clamping seats, which is opposite to the clamping groove, is provided with a first limiting groove and a second limiting groove which are arranged independently, the first terminal is arranged in the first limiting groove, and the second terminal is arranged in the second limiting groove.
In a preferred embodiment, the plasma generator with the flat plate-type dielectric barrier discharge structure further comprises a first power line and a second power line which are electrically connected with the first binding post and the second binding post respectively, the first power line comprises a first connecting terminal fixedly connected with the first binding post and a first conducting wire fixedly connected with the first connecting terminal, and the second power line comprises a second connecting terminal fixedly connected with the second binding post and a second conducting wire fixedly connected with the second connecting terminal.
In a preferred embodiment, the plasma generator of the flat plate type dielectric barrier discharge structure further includes two silica gel protective sleeves, one of the silica gel protective sleeves covers a joint of the first terminal and the first connection terminal, the other silica gel protective sleeve covers a joint of the second terminal and the second connection terminal, and one ends of the two silica gel protective sleeves are respectively and limitedly arranged in the first limiting groove and the second limiting groove 2.
Compared with the prior art, the invention has the following beneficial effects:
the invention improves the structure of the flat-plate-shaped dielectric barrier discharge unit, the folded edges formed by bending are arranged on two opposite long side edges of the outer electrode plates, when the two outer electrode plates are oppositely arranged, the folded edges corresponding to the long side edges are overlapped, two plastic clamping pieces are used for clamping and fixing the two short side edges and the folded edges of the flat-plate-shaped dielectric barrier discharge unit, the structure that the four side edges of the dielectric barrier discharge unit need to be fixed by the plastic clamping pieces in the prior art is abandoned, the use of the plastic clamping pieces is reduced, the cost is reduced, and the assembly of a plasma generator is simplified, meanwhile, a circumferential surrounding sunken state can not be formed between the surface of the outer electrode plate and the plastic clamping piece, so that positive and negative ions generated on the surface of the outer electrode plate are not easy to gather and are quickly dispersed into the surrounding air, and the sterilization effect of the plasma generator is improved. And, through with outer electrode plate ground connection, just can not gather a large amount of charges on the plastics fastener, be favorable to improving life and safe in utilization.
Drawings
Fig. 1 is an exploded schematic view of a first embodiment of a plasma generator.
Fig. 2 is an exploded view of a dielectric barrier discharge cell.
Fig. 3 is a schematic perspective view of a dielectric barrier discharge cell.
Fig. 4 is a schematic perspective view of a first embodiment of the plasma generator.
Fig. 5 is an exploded view schematically showing a second embodiment of the plasma generator.
Fig. 6 is a schematic perspective view of a second embodiment of the plasma generator.
Detailed Description
To further clarify the technical solutions and effects adopted by the present application to achieve the intended purpose, the following detailed description is given with reference to the accompanying drawings and preferred embodiments according to the present application. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
First embodiment
Referring to fig. 1 to 4, the present invention provides a plasma generator (also referred to as "plasma generator" for short) with a flat plate type dielectric barrier discharge structure, which includes a dielectric barrier discharge unit and two plastic clamping members clamped at two opposite short edge ends of the dielectric barrier discharge unit, wherein the two opposite short edge ends of the dielectric barrier discharge unit are clamped by the plastic clamping members, and the plastic clamping members play a role in fixing and insulating.
As shown in fig. 2 to 3, the dielectric barrier discharge unit includes: the electrode plate comprises an inner electrode plate 1, wherein the inner electrode plate 1 is a stainless steel plate or a copper plate and is provided with meshes or grids in geometrical shapes such as a circle, a square or a triangle; two dielectric plates 2 respectively positioned on two side surfaces of the inner electrode plate 1, wherein the dielectric plates 2 are quartz glass plates or ceramic plates; each outer electrode plate 3 comprises a tabular outer electrode plate body 31 and folded edges 32 formed by bending two long side edges of the outer electrode plate body 31 towards the same direction, so that the section of each outer electrode plate 3 is U-shaped, and two ends of each folded edge are provided with first buckling holes 33; the two outer electrode plates 3 are oppositely arranged on the outer side surfaces of the two dielectric plates 2, and the folded edges 32 of the same long side edge of the two outer electrode plates 3 are overlapped to enable the positions of the first buckling holes 33 corresponding to the tail ends to be overlapped.
The plastic clamping piece comprises a clamping seat 4, a clamping groove 40 is formed in one end of the clamping seat 4, the width of the clamping groove 40 is matched with the width of the short side edge of the outer electrode plate 3, and a first clamping buckle 42 is arranged on the two opposite groove walls of the clamping groove 40. When inserting the short side of dielectric barrier discharge unit into joint groove 40 of cassette 4, be located the first buckle 42 of the double-phase relative cell wall of joint groove 40 and block respectively in the first knot hole 33 of outer plate electrode 3 to two outer plate electrodes 3 that will set up relatively are fixed, through two plastics fastener joint respectively at two short sides of dielectric barrier discharge unit, just through two end fixing with two dielectric slabs 2, and then realize cliping inner electrode board 1 and fix between two outer plate electrodes 3.
The outer electrode plates 3 are grounded, the inner electrode plates 1 are electrically connected with a high-voltage power supply, after the plasma generator is electrically connected with the high-voltage power supply, a uniform high-voltage electric field is formed between each outer electrode plate 3 and each inner electrode plate 1, and the dielectric plates 2 are positioned in the high-voltage electric field to form a dielectric barrier discharge structure, so that air is ionized and punctured to generate positive and negative ions, and the released positive and negative ions realize the sterilization and environment purification functions. By grounding the outer electrode plate 3, a large amount of charge is not accumulated on the plastic card.
The invention improves the structure of the flat-plate-shaped dielectric barrier discharge unit, the two opposite long side edges of the outer electrode plates 3 are provided with the hems 32 which are formed by bending, when the two outer electrode plates 3 are oppositely arranged, the hems 32 corresponding to the long side edges are overlapped, the hems 32 can be used for shielding the gap between the long side edges of the two dielectric plates 2 and the inner electrode plate 1, so as to avoid the plasma generator from being incapable of working or being damaged due to the external moisture entering the gap, thereby achieving the purpose of improving the reliability of the plasma generator, simultaneously, the hems 32 corresponding to the long side edges of the two outer electrode plates 3 can be overlapped, so that only two plastic clamping pieces are needed to clamp and fix the two short side edges of the flat-plate-shaped dielectric barrier discharge unit respectively, and plastic clamping pieces are not needed to be arranged on the peripheral side edges of the outer electrode plates 3 in the prior art, and the circumferential surrounding sunken state can, the positive and negative ions generated on the surface of the outer electrode plate 3 are not easy to gather but can be quickly dispersed into the surrounding air, thereby being beneficial to improving the sterilization effect of the plasma generator.
Wherein, the outer electrode plate 3 adopts an integrated structure, and the folded edge 32 can be formed by directly bending from two long side edges of the outer electrode plate 3. The folded edge 32 of the outer electrode plate 3 can be realized by adopting the existing mature process, and the outer electrode plate body 31 can be ensured to be a flat plate with better planeness, so that the inner and outer electric fields between each outer electrode plate 3 and the inner electrode plate 1 are uniform, and a uniform plasma generator is formed.
In addition, in order to improve the clamping reliability of the short sides of the card seat 4 and the dielectric barrier discharge unit, the clamping groove 40 is internally provided with a limiting rib 41, and when the short sides of the dielectric barrier discharge unit are clamped in the clamping groove 40 of the card seat 4, the limiting rib 41 is abutted against the short sides of the dielectric barrier discharge unit. The short sides of the dielectric barrier discharge unit are limited by the limiting ribs 41 to move transversely, so that the card holder 4 is buckled into the first buckling hole 33 through the first buckle 42 and is kept clamped and fixed with the dielectric barrier discharge unit.
In addition, the plastic clamping piece further comprises a cover plate 5 detachably connected with the clamping seat 4, when the cover plate 5 is installed on the clamping seat 4, at least part of the cover plate 5 is pressed on the short side edge of the dielectric barrier discharge unit, so that the dielectric barrier discharge unit is limited to be separated from the clamping groove 40 in the longitudinal movement, and the clamping reliability of the clamping seat 4 and the short side edge of the dielectric barrier discharge unit is further improved.
For example, a second buckle 53 is disposed on the outer side surface of the card socket 4, the cover plate 5 has a fixing arm 51 extending downward, a second buckle hole 52 is disposed on the fixing arm 51, and when the cover plate 5 is disposed on the card socket 40, the second buckle 53 is buckled into the second buckle hole 52, so that the cover plate 5 is fixedly mounted on the card socket 4.
The end of the folded edge 32 extends outwards relative to the short side of the outer electrode plate body 31 to form an extending end part 34, and the first buckling hole 33 is arranged on the extending end part 34; or/and a groove wall of the clamping groove 40 extends out of a protruding arm 49, and the first buckle 42 is arranged on the protruding arm 49. The structure can realize the clamping connection of the short side edges of the plastic clamping piece and the dielectric barrier discharge unit, and can reduce the coating area of the plastic clamping piece and the outer electrode plate body 31, thereby reducing the probability that positive and negative ions generated on the surface of the outer electrode plate body 31 are shielded by the plastic clamping piece and cannot be emitted to the air, so that the positive and negative ions generated by the plasma generator can be emitted to the air without being influenced by the plastic clamping piece as much as possible, and the sterilization efficiency of the plasma generator is improved.
A first terminal 11 is provided at one short side of the inner electrode plate 1 and a second terminal 39 is provided at the corresponding short side of one of the outer electrode plates 3. The other end of one of the card holder 4 opposite to the card slot 40 is provided with a first limiting slot 451 and a second limiting slot 452 which are relatively independently arranged, the first terminal 11 is arranged in the first limiting slot 451, and the second terminal 39 is arranged in the second limiting slot 452. The first post 11 has a different size, for example, a different width, from the second post 39. The purpose is to prevent wrong connection when the plasma generator is conveniently connected with a high-voltage power supply, and improve the use safety.
Second embodiment
As shown in fig. 5 and 6. The second embodiment is based on the first embodiment, and further includes a first power line and a second power line electrically connected to the first terminal 11 and the second terminal 39, respectively, the first power line includes a first connection terminal 61 fixedly connected to the first terminal 11 and a first conductive wire 63 fixedly connected to the first connection terminal 61, and the second power line includes a second connection terminal 62 fixedly connected to the second terminal 39 and a second conductive wire 64 fixedly connected to the second connection terminal 62.
Wherein, still include two silica gel protective sheaths 8, one of them silica gel protective sheath 8 cladding is in the junction of first terminal 11 and first connecting terminal 61, and another silica gel protective sheath 8 cladding is in the junction of second terminal 39 and second connecting terminal 62, and the one end of two silica gel protective sheaths 8 is spacing to be established respectively in first spacing groove 451 and second spacing groove 452. During the installation, first terminal 11 and first connecting terminal 61 penetrate the back at the inside fixed linking to each other of silica gel protective sheath 8 respectively from the both ends of one of them silica gel protective sheath 8 respectively, and second terminal 39 and second connecting terminal 62 penetrate the back at the inside fixed linking to each other of silica gel protective sheath 8 respectively from the both ends of another silica gel protective sheath 8 can. The two silica gel protective sleeves 8 play roles in limiting and isolating, the first binding post 11 and the second binding post 39 are prevented from being exposed in an electrified mode, and use safety is guaranteed.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A plasma generator with a flat dielectric barrier discharge structure is characterized by comprising a dielectric barrier discharge unit and two plastic clamping pieces;
the dielectric barrier discharge unit comprises an inner electrode plate, two dielectric plates and two outer electrode plates, wherein the two dielectric plates are respectively positioned on two side surfaces of the inner electrode plate, each outer electrode plate comprises a tabular outer electrode plate body and folded edges formed by bending two long side edges of the outer electrode plate body towards the same direction, two ends of each folded edge are respectively provided with a first buckling hole, the two outer electrode plates are oppositely arranged on the outer side surfaces of the two dielectric plates, the folded edges of the two outer electrode plates positioned on the same long side edge are overlapped, and the positions of the first buckling holes corresponding to the tail ends are superposed;
the plastic clamping piece comprises a clamping seat, wherein a clamping groove is formed in one end of the clamping seat, the width of the clamping groove is matched with the width of the short side edge of the outer electrode plate, and first clamping buckles are arranged on two opposite groove walls of the clamping groove;
the two plastic clamping pieces are respectively clamped on two short side edges of the dielectric barrier discharge unit, the two short side edges of the dielectric barrier discharge unit are respectively inserted into clamping grooves of the two plastic clamping pieces, and the first clamping buckle is respectively buckled with the first buckling hole of the corresponding position.
2. The plasma generator with the flat plate type dielectric barrier discharge structure according to claim 1, wherein a limiting rib is arranged in the clamping groove, and when the short side of the dielectric barrier discharge unit is clamped in the clamping groove of the clamping seat, the limiting rib abuts against the short side of the dielectric barrier discharge unit.
3. The plasma generator of flat dielectric barrier discharge structure according to claim 1, wherein the plastic clamper further comprises a cover plate detachably coupled to the holder, the cover plate being at least partially pressed against the short side of the dielectric barrier discharge unit when the cover plate is mounted to the holder.
4. The plasma generator with flat plate-type dielectric barrier discharge structure according to claim 3, wherein a second buckle is provided on an outer side surface of the clamping seat, the cover plate has a downwardly extending fixing arm, the fixing arm has a second buckle hole, and the second buckle is connected to the second buckle hole when the cover plate is disposed on the buckle groove.
5. The plasma generator of a flat plate type dielectric barrier discharge structure according to claim 1, wherein the end of the folded edge extends outward from the short side of the outer electrode plate body to form an extended end portion, and the first fastening hole is provided on the extended end portion; or/and the groove wall of the clamping groove extends out of the extending arm, and the first buckle is arranged on the extending arm.
6. The plasma generator of flat dielectric barrier discharge structure according to claim 1, wherein the outer electrode plate is grounded, and the inner electrode plate is electrically connected to a high voltage power source.
7. The plasma generator of flat dielectric barrier discharge structure according to claim 1, wherein a first terminal is provided at one short side of the inner electrode plate, and a second terminal is provided at the corresponding short side of one of the outer electrode plates.
8. The plasma generator of flat plate type dielectric barrier discharge structure of claim 7, wherein the other end of one of the clamping seats opposite to the clamping groove has a first limiting groove and a second limiting groove which are arranged independently, the first terminal is arranged in the first limiting groove, and the second terminal is arranged in the second limiting groove.
9. The plasma generator of flat dielectric barrier discharge structure according to claim 8, further comprising a first power line and a second power line electrically connected to the first terminal and the second terminal, respectively, the first power line including a first connection terminal fixedly connected to the first terminal and a first conductive wire fixedly connected to the first connection terminal, and the second power line including a second connection terminal fixedly connected to the second terminal and a second conductive wire fixedly connected to the second connection terminal.
10. The plasma generator with a flat plate type dielectric barrier discharge structure according to claim 9, further comprising two silica gel protective sleeves, wherein one silica gel protective sleeve covers a joint of the first binding post and the first connecting terminal, the other silica gel protective sleeve covers a joint of the second binding post and the second connecting terminal, and one ends of the two silica gel protective sleeves are respectively disposed in the first limiting groove and the second limiting groove in a limiting manner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110038363.4A CN112672487B (en) | 2021-01-12 | 2021-01-12 | Plasma generator with flat dielectric barrier discharge structure |
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| CN202110038363.4A CN112672487B (en) | 2021-01-12 | 2021-01-12 | Plasma generator with flat dielectric barrier discharge structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117295220A (en) * | 2023-01-03 | 2023-12-26 | 珠海市德邦电器工程有限公司 | Low-temperature plasma generating device |
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| WO2014008834A1 (en) * | 2012-07-13 | 2014-01-16 | 浙江佩洁尔医疗科技有限公司 | Plasma reactor |
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