Plasma electric field generator with double-layer protection function

Abstract

The utility model relates to the technical field of medical disinfection equipment, in particular to a plasma electric field generator with a double-layer protection function, which comprises a reaction cavity frame, four preformed holes which are vertically symmetrical are formed in the left part and the right part of the reaction cavity frame and are used for circuit connection, and 11 dust collection plates are connected between the front part and the rear part of the reaction cavity frame. 10 groups of corona electrodes which are symmetrical up and down are connected between the front part and the rear part of the reaction cavity frame, each group comprises two pieces, and the corona electrodes on the upper layer and the lower layer are arranged at equal intervals. The utility model provides a gradient double-layer protection structure, through differentiated material combination and space reconstruction, while the compactness of equipment is maintained, the insulation effect of a ceramic insulator is realized, the phenomena of current leakage and short circuit are effectively prevented, a physical isolation space reserved between layers can effectively block a breakdown arc diffusion path, and the service life of the equipment is prolonged. In addition, the shell forms final safety redundancy, and continuous and safe operation of equipment is ensured.

Description

Technical Field

[0001] This utility model relates to the field of medical disinfection equipment technology, and in particular to a plasma electric field generator with double-layer protection function. Background Technology

[0002] With the widespread application of plasma technology in the medical field, plasma electric field generators, as the core component of medical plasma disinfection equipment, have their structural design and operational stability directly affecting the sterilization efficiency and safety of the equipment. Currently, most mainstream products on the market adopt a single-layer insulation structure, which meets the trend of miniaturization and compact design of medical equipment. However, in practical applications, some defects have also been exposed. Under high-frequency discharge operation, the electrode-dielectric interface is continuously bombarded by high-energy electrons, causing the surface of the insulating material to gradually carbonize and deteriorate. This carbonization not only weakens the insulation performance of the material, but may also form hidden conductive channels, significantly increasing the risk of local breakdown during long-term operation. In addition, due to the limited compact design of the existing structure, the single-layer insulation method lacks the necessary physical isolation space between the insulation layer and the equipment shell. Once a local breakdown occurs, the generated arc can easily be conducted to the outer shell, causing electric shock to the operator or triggering secondary discharge safety hazards.

[0003] Therefore, in order to address the above problems, a plasma electric field generator with dual-layer protection is now being developed. Utility Model Content

[0004] To overcome the shortcomings of existing devices, this invention provides a plasma electric field generator with dual-layer protection.

[0005] The technical implementation scheme of this utility model is as follows: A plasma electric field generator with double-layer protection function includes a reaction chamber frame. The reaction chamber frame has four symmetrically arranged pre-drilled holes on both the left and right sides for circuit connection. Eleven dust collection plates are connected between the front and rear parts of the reaction chamber frame, and the dust collection plates are arranged at equal intervals. Ten sets of corona electrodes, each set consisting of two electrodes, are connected between the front and rear parts of the reaction chamber frame, and the corona electrodes on both the upper and lower layers are arranged at equal intervals. Side... The reaction chamber frame has ceramic insulators installed at both ends of the left and right sides and at both ends of the outer side of the side plate. The ceramic insulators are 10mm high and are used to physically isolate the space and block the spread of the breakdown arc. The ceramic insulators are provided with mounting frames on the outside of the ceramic insulators. The ceramic insulators are used as connections and fixation between the mounting frames and the reaction chamber frame and the side plate. Six symmetrical clamping plates are connected to the inner side of each mounting frame. The outer side of each clamping plate is connected to a housing. The housing is a split structure and the housings are connected by electrical insulating adhesive.

[0006] More preferably, the reaction chamber frame is a rectangular structure.

[0007] More preferably, mounting holes are provided on the front and rear ends of the left and right sides of the reaction chamber frame and on the left and right ends of the side plates.

[0008] More preferably, the ceramic insulator has a detachable connection structure.

[0009] More preferably, the inner edge of the housing is designed with a chamfered structure for engaging with the card plate.

[0010] More preferably, the housing is made of epoxy resin.

[0011] By adopting the above technical solution, compared with the prior art, this utility model has the following advantages:

[0012] This invention proposes a gradient double-layer protection structure. Through differentiated material combinations and spatial reconstruction, it achieves the insulation effect of ceramic insulators while maintaining the compactness of the equipment, effectively preventing current leakage and short circuits. The physical isolation space reserved between the layers can effectively block the propagation path of the breakdown arc. In addition, the shell provides the final safety redundancy to ensure the continuous safe operation of the equipment. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a schematic diagram of the partially exploded three-dimensional structure of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the first part of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the second part of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the third part of this utility model.

[0018] Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the present invention.

[0019] Wherein: 1: Corona electrode, 2: Side plate, 3: Reaction chamber frame, 4: Dust collection plate, 5: Mounting frame, 6: Ceramic insulator, 7: Housing, 8: Clamping plate. Detailed Implementation

[0020] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0021] A plasma electric field generator with dual-layer protection, such as Figures 1-6 As shown, the device includes a reaction chamber frame 3. The reaction chamber frame 3 has four symmetrically spaced holes on both its left and right sides for circuit connections. The reaction chamber frame 3 is rectangular. Eleven dust collection plates 4 are connected between the front and rear of the reaction chamber frame 3, arranged at equal intervals. Ten sets of corona electrodes 1, each set consisting of two electrodes, are connected between the front and rear of the reaction chamber frame 3, arranged at equal intervals on both the upper and lower layers. Side plates 2 are connected to the outer sides of both the front and rear of the reaction chamber frame 3. Mounting holes are located at the front and rear ends of both sides of the reaction chamber frame 3 and at the left and right ends of the side plates 2. Ceramic insulators are installed at both ends of the rear end and at both ends of the left and right sides of the outer side of the side plate 2. The ceramic insulators have a detachable connection structure. The ceramic insulator 6 is 10mm high and is used to physically isolate the space and block the spread of the breakdown arc. A mounting frame 5 is provided on the outside of the ceramic insulator. The ceramic insulator is fixed between the mounting frame 5 and the reaction chamber frame 3 and the side plate 2. Six symmetrical clamping plates 8 are connected to the inside of the mounting frame 5. The outer side of the clamping plate 8 is connected to the shell 7 by snap-fit. The inner edge of the shell 7 has a chamfered structure design for snap-fit ​​with the clamping plate 8. The shell 7 has an upper and lower split structure. The shells 7 are connected by electrical insulating glue. The shell 7 is made of epoxy resin.

[0022] It should be noted that this device can be used when performing disinfection with a plasma electric field generator. First, install this device inside the corresponding main unit and make electrical connections to the pre-drilled holes on the reaction chamber frame 3 via positive and negative voltage ports. These pre-drilled holes provide the necessary electrical interfaces to ensure that high-voltage current can smoothly enter the electrode system. When an external power source is connected, the high-voltage current is introduced into the corona electrode 1 system through the pre-drilled holes on the reaction chamber frame 3. Due to the shape differences in the corona electrode 1 structure, a strong electric field is formed in a local area. This strong electric field accelerates free electrons in the air or other process gases and causes them to collide with gas molecules, thereby initiating an ionization reaction. As the ionization process continues to expand, a stable avalanche discharge is gradually formed, ultimately generating low-temperature plasma. This plasma contains a large number of high-energy electrons, ions, free radicals, and other active particles, and is widely used in surface modification, sterilization, and removal of organic pollutants. The double-layer corona electrode 1 structure arranged vertically makes the discharge area denser, significantly enhancing the plasma coverage and processing efficiency, while also helping to maintain discharge stability and prevent local breakdown. Multiple dust collection plates 4 are evenly distributed... The electrodes are spaced evenly to improve the stability of the equipment and reduce uneven discharge or failure caused by vibration or thermal expansion. To prevent potential safety hazards caused by carbonization and deterioration of the insulating material surface due to high-energy electron bombardment, the ceramic insulator 6, as a key component between the electrode system and the outside world, effectively prevents current leakage and short circuits, improving the system's fault tolerance. The mounting frame 5 and the reaction chamber frame 3 are separated by the ceramic insulator, forming a 10mm thick space. This physical isolation zone not only provides additional safety protection but also effectively limits any possible arc propagation path. Once the inner layer medium experiences local breakdown, the generated arc will be confined within this area and will not be further conducted to the outside, greatly reducing the safety risks caused by insulation failure. In addition, the upper and lower split-structure shell 7 is made of epoxy resin material with high electrical strength and breakdown resistance. It is connected to the card plate 8 and sealed with electrical insulating adhesive to create final safety redundancy. Even if the inner layer medium experiences local aging or breakdown, the outer shell 7 can still maintain the insulation integrity of the overall system, ensuring the continuous safe operation of the equipment.

[0023] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A plasma electric field generator with dual-layer protection, characterized in that it includes... The reaction chamber frame (3) has four symmetrical pre-drilled holes on both the left and right sides for circuit connection. Eleven dust collection plates (4) are connected between the front and rear of the reaction chamber frame (3), arranged at equal intervals. Ten sets of corona electrodes (1) are symmetrically arranged between the front and rear of the reaction chamber frame (3), each set consisting of two electrodes. The corona electrodes (1) on both the upper and lower layers are arranged at equal intervals. Side plates (2) are connected to the outer sides of both the front and rear of the reaction chamber frame (3). The front and rear ends of the left and right sides of the reaction chamber frame (3) and the... Ceramic insulators are installed on both the left and right ends of the side plate (2). The ceramic insulator (6) is 10mm high and is used to physically isolate the space and block the spread of the breakdown arc. An installation frame (5) is provided on the outside of the ceramic insulator. The ceramic insulator is fixed between the installation frame (5), the reaction chamber frame (3), and the side plate (2). Six symmetrical clamping plates (8) are connected to the inside of the installation frame (5). A shell (7) is snapped to the outside of the clamping plate (8). The shell (7) is a split structure. The shells (7) are connected with electrical insulating glue.

2. A plasma electric field generator with dual-layer protection function according to claim 1, characterized in that, The reaction chamber frame (3) has a rectangular structure.

3. A plasma electric field generator with dual-layer protection function according to claim 1, characterized in that, Mounting holes are provided on the front and rear ends of the left and right sides of the reaction chamber frame (3) and on the left and right ends of the side plate (2).

4. A plasma electric field generator with dual-layer protection function according to claim 1, characterized in that, The ceramic insulator has a detachable connection structure.

5. A plasma electric field generator with dual-layer protection function according to claim 1, characterized in that, The inner edge of the housing (7) is designed with a chamfered structure for engaging with the card plate (8).

6. A plasma electric field generator with dual-layer protection function according to claim 1, characterized in that, The housing (7) is made of epoxy resin.

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