Ventilation cooling discharge type ceramic electrode and corona machine

Abstract

The utility model discloses a ventilation cooling discharge type ceramic electrode and a corona machine, and relates to the technical field of corona machines. The ceramic electrode comprises an electrode body and a conductive structure arranged on the electrode body, the electrode body comprises a bottom plate, a first section and a second section, one end of the first section extends upwards from one side of the bottom plate, the other end of the first section is a free end, one end of the second section extends upwards from the other side of the bottom plate, and the other end of the second section is a free end; a ventilating duct which is through from front to back is arranged among the bottom plate, the first section and the second section; and the ventilating duct is used for dissipating heat energy generated by the ventilating and cooling discharge type ceramic electrode. And the electrode body is U-shaped. And the conductive structure is a conductive coating which is coated on the bottom plate and is positioned in the ventilating duct. With the adoption of the technical scheme, compared with a sealed ceramic electrode, the ceramic electrode not only has good ventilation and heat dissipation capabilities, but also can maintain the advantage of good insulation performance in the corona treatment process.

Description

Technical Field

[0001] The utility model relates to the technical field of corona machines, in particular to a ventilation cooling discharge type ceramic electrode and a corona machine. Background Art

[0002] In the field of corona machine technology, the interaction between the corona roller and the ceramic electrode is the key to achieving effective corona treatment. Ceramic electrodes are mainly used in situations that require high insulation and temperature control. They are suitable for discharge applications in high-voltage, high-frequency, and high-temperature environments. These ceramic electrodes are usually used to process materials with strict requirements, such as surface activation of materials before high-precision printing, coating, or bonding. Sealed ceramic electrodes help prevent the external environment from affecting the interior of the ceramic electrode, but the sealed design limits the heat dissipation capacity of the ceramic electrode. The temperature of the ceramic electrode rises after long-term operation. Excessive temperature leads to a decrease in the performance of the ceramic electrode material, such as reduced insulation performance, and even causes ceramic electrode failure. In summary, improvement is urgently needed. Utility Model Content

[0003] The purpose of the utility model is to provide a ventilation cooling discharge type ceramic electrode and a corona machine to address the defects and shortcomings of the existing technology. During the corona treatment process, the ceramic electrode not only has good ventilation and heat dissipation capabilities, but also can maintain its good insulation performance advantages.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a ventilation-cooling discharge ceramic electrode, comprising: an electrode body, and a conductive structure arranged on the electrode body; the electrode body comprises: a base plate, a first segment with one end extending upward from one side of the base plate and the other end being a free end, and a second segment with one end extending upward from the other side of the base plate and the other end being a free end; a ventilation duct running through the base plate, the first segment and the second segment is provided, and the ventilation duct is used to dissipate the heat energy generated by the ventilation-cooling discharge ceramic electrode.

[0005] The present invention is further provided that the first segment and the second segment are respectively vertically arranged on the bottom plate.

[0006] The present invention is further provided with that the electrode body is U-shaped.

[0007] The present invention further provides that the conductive structure is a conductive coating coated on the bottom plate and located in the ventilation duct.

[0008] The utility model is further provided that the conductive coating is made of positive electrode material.

[0009] The present invention further provides that the width of the conductive coating is the same as the width of the ventilation duct, and the length of the conductive coating is shorter than the length of the ventilation duct.

[0010] The present invention is further provided that the surface of the bottom plate away from the ventilation duct is a plane.

[0011] The present invention is further provided with grooves that are recessed inwards and pass through from front to back on the outer sides of the first segment and the second segment.

[0012] The present invention is further provided with the groove being in an arc shape.

[0013] To achieve the above object, another technical solution adopted by the present invention is: a corona machine, comprising: a corona roller, and the ventilation cooling discharge type ceramic electrode as described above, forming a discharge gap between the corona roller and the corona roller.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] 1. In the present invention, an electrode body and a conductive structure are provided, wherein a ventilation duct running through the bottom plate, the first segment and the second segment in the electrode body is formed, and the ventilation duct can improve the heat dissipation effect of the ventilation cooling discharge type ceramic electrode. The setting of the conductive structure can enhance the conductive performance of the ventilation cooling discharge type ceramic electrode, so that during the corona treatment process, the ceramic electrode will generate a large amount of heat. Effective heat dissipation can prevent the ceramic electrode from overheating, reduce thermal stress, and extend the service life of the ceramic electrode, while maintaining the good insulation performance of the ceramic electrode and improving the efficiency of corona discharge.

[0016] 2. In this utility model, specifically during the corona treatment process, the development of a ventilated, cooled discharge ceramic electrode focuses on transferring the entire available load to the material surface as evenly and gently as possible. The goal of the discharge ceramic electrode is to achieve uniform discharge, avoid long, single sparks, and simultaneously cool the coil surface. This results in a safer, easier-to-use design for this novel electrode treatment station, featuring integrated ozone extraction and electrode cooling. During operation, the heated individual electrodes are allowed to expand independently to avoid deformation and maintain a uniform air gap. The ceramic electrodes generate significant heat, and effective heat dissipation prevents overheating, reduces thermal stress, and extends their service life while maintaining their excellent insulation properties and dielectric properties. Because corona discharge is a process in which air permeates a dielectric to block the discharge, this controlled dielectric barrier ensures a uniform discharge beam across the material surface, improving corona discharge efficiency. Consequently, compared to sealed ceramic electrodes, this design not only offers superior ventilation and heat dissipation, but also prevents deformation and fracture caused by heat accumulation within the metal sheet within the enclosed ceramic electrode cavity, while also maintaining its excellent insulation properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 labor.

[0018] Figure 1 This is a structural diagram of a ventilation-cooled discharge ceramic electrode from one perspective;

[0019] Figure 2 This is a structural diagram of the ventilation-cooled discharge ceramic electrode from another perspective;

[0020] Figure 3 This is a schematic diagram of the structure of a ventilation cooling discharge ceramic electrode from the front view;

[0021] Figure 4 This is a structural diagram of a ventilation-cooled discharge ceramic electrode from another perspective;

[0022] Figure 5 It is a structural diagram of a ventilation-cooled discharge ceramic electrode and a corona roller.

[0023] Explanation of the reference numerals: 100, electrode body; 110, bottom plate; 111, plane; 120, first segment; 130, second segment; 140, ventilation channel; 150, groove; 200, conductive coating; 300, corona roller. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0026] This embodiment relates to a ventilation cooling discharge type ceramic electrode, referring to Figure 1-Figure 2 , including: an electrode body 100, and a conductive structure arranged on the electrode body 100. The conductive structure can ensure the efficient conduction of electrical energy on the electrode body 100, reduce resistance loss, and improve the working efficiency of the electrode. The electrode body 100 includes: a base plate 110, a first segment 120, a second segment 130 and a ventilation duct 140. Among them, one end of the first segment 120 extends from one side of the base plate 110, and the other end is a free end, and one end of the second segment 130 extends from the other side of the base plate 110, and the other end is also a free end. The arrangement of the base plate 110, the first segment 120 and the second segment 130 ensures the uniformity of corona discharge and enhances the structural stability of the entire electrode. The ventilation duct 140 that runs through the front and back is arranged between the base plate 110, the first segment 120 and the second segment 130. The ventilation duct 140 is used to dissipate the heat energy generated by the ventilation cooling discharge ceramic electrode. The ventilation duct 140 can also promote air flow, serving as an outlet for hot air and an inlet for cold air, which helps to form a natural convection cycle, improves the air exchange efficiency, and thus improves the ventilation and heat dissipation effect of the ventilation cooling discharge type ceramic electrode. During the corona treatment process, the ventilation cooling discharge type ceramic electrode will generate a large amount of heat. Effective heat dissipation can prevent the ceramic electrode from overheating, reduce thermal stress, and extend the service life of the ceramic electrode. At the same time, it maintains the good insulation performance and dielectric of the ceramic electrode, and improves the efficiency and compensation of corona discharge. Therefore, compared to the sealed ceramic electrode, it not only has good ventilation and heat dissipation capabilities, but also avoids the metal sheet in the ceramic electrode from gathering heat in the closed ceramic electrode cavity to cause the ceramic electrode to deform and break, and can also maintain its good insulation performance advantages.

[0027] In this embodiment, referring to Figure 2-Figure 3 The first segment 120 and the second segment 130 are respectively vertically arranged on the bottom plate 110. The vertical structure helps to form a uniform electric field distribution, and the ventilation channel 140 formed between the three facilitates air circulation and improves the heat dissipation effect of the electrode.

[0028] Specifically in this embodiment, the first segment 120 and the second segment 130 are symmetrically arranged. The symmetrical arrangement can ensure a more uniform electric field distribution between the first segment 120 and the second segment 130, thereby reducing problems such as local overheating or uneven discharge.

[0029] In this embodiment, referring to Figure 3 The U-shaped electrode body 100 facilitates a more uniform electric field distribution, reduces corona discharge concentration points, avoids local overheating and arcing, maintains the good insulation properties of the ventilated cooling discharge ceramic electrode, and improves the stability of the corona discharge. The ventilation duct 140 and the U-shaped structure promote air circulation, further enhancing heat dissipation and preventing electrode overheating. In other embodiments, the electrode body 100 may also have other shapes.

[0030] In this embodiment, referring to Figure 1-Figure 2 The conductive structure is a conductive coating 200 coated on the bottom plate 110 and located in the ventilation duct 140. The conductive coating 200 is used to conduct electrical energy. The ceramic material itself is usually an insulator or a semiconductor with poor conductivity. The conductive coating 200 can significantly improve the conductive performance of the electrode body 100, so that it can effectively conduct electrical energy and improve the efficiency of corona discharge. The goal of the coating discharge type is to discharge uniformly, avoid the phenomenon of long single spark ignition, and at the same time cool the surface of the coil. The conductive coating 200 is directly coated on the bottom plate 110, and no additional structure is required to press the conductive structure against the bottom plate 110. It is only coated on the U-shaped electrode body 100, thereby simplifying the manufacturing process, reducing the assembly steps, and helping to reduce manufacturing costs and improve manufacturing efficiency. At the same time, it is easier to control the thickness and position of the conductive coating 200, improve processing accuracy, and good contact between the conductive coating 200 and the base plate 110 helps to uniformly distribute and firmly adhere the conductive coating 200, reducing the instability of corona discharge or the deterioration of conductive performance caused by unevenness or shedding of the conductive coating 200, thereby improving the conductive efficiency and ensuring the stability and strength of corona discharge.

[0031] In this embodiment, the conductive coating 200 is made of a positive electrode material. During corona treatment, the conductive coating 200 ensures good electrical contact between the electrode body 100 and the high-voltage power supply, enabling efficient and stable transmission of electrical energy to the surface of the ventilation-cooled discharge ceramic electrode, generating the desired corona discharge and significantly improving the electrode's conductivity. In other embodiments, the conductive coating 200 may also be made of other conductive materials.

[0032] In this embodiment, referring to Figure 1-Figure 2The width of the conductive coating 200 is the same as the width of the ventilation duct 140, while the length of the conductive coating 200 is shorter than the length of the ventilation duct 140. This uniform width ensures that the conductive coating 200 is evenly distributed across the entire base plate 110, forming a uniform electric field and improving electrical conductivity and corona discharge. The shorter length of the conductive coating 200 than the ventilation duct 140 reduces electric field concentration at the electrode edges, preventing excessive corona discharge at the electrode edges and the generation of arcs or spark discharges.

[0033] In this embodiment, referring to Figure 4 The surface of the bottom plate 110 away from the ventilation duct 140 is a plane 111. The plane 111 is also set to form a uniform electric field to improve the effect of corona discharge.

[0034] In this embodiment, referring to Figure 2 、 Figure 4 The outer sides of the first segment 120 and the second segment 130 are both provided with an inwardly recessed groove 150 that runs through the front and back. The groove 150 is used for fixed installation, simplifying the installation of the electrode body 100. During installation, the groove 150 can be used to quickly locate and fix the electrode body 100 in the desired position, thereby improving installation efficiency.

[0035] In this embodiment, the groove 150 is in an arc shape. The arc-shaped groove is relatively smooth, and the friction on the inner surface of the groove 150 is small, which facilitates the fixed installation of the electrode. In other embodiments, the groove 150 can also be in other shapes.

[0036] This embodiment also relates to a corona machine, referring to Figure 5 The device comprises a corona roller 300 and a ventilation-cooled discharge ceramic electrode as described above, forming a discharge gap between the electrode and the corona roller 300. The discharge gap is the physical space where corona discharge occurs. When a high voltage power supply is applied to the ceramic electrode, an electric field is formed between the electrode and the grounded corona roller 300. Because corona discharge is blocked by a medium through which air passes, a uniform discharge beam is obtained by blocking the discharge with a controllable medium, allowing the high-energy electrons and ions generated by the corona discharge to act evenly on the material surface.

[0037] The working principle of the present invention is roughly as follows: a discharge gap is formed between the ventilation cooling discharge ceramic electrode and the corona roller 300, and when the material is placed in the discharge gap, the conductive coating 200 is applied on the bottom plate 110, which promotes the conductivity of the electrode body 100 and helps to provide a uniform electric field distribution, so that the high-energy electrons and ions generated by the corona discharge act evenly on the surface of the material. At the same time, the ventilation duct 140 in the electrode body 100 improves the ventilation and heat dissipation effect of the ventilation cooling discharge ceramic electrode, so that during the corona treatment process, the ceramic electrode will generate a large amount of heat. Effective heat dissipation can prevent the ceramic electrode from overheating, reduce thermal stress, and extend the service life of the ceramic electrode, while maintaining the good insulation performance and dielectric of the ceramic electrode, thereby improving the efficiency and compensation of corona discharge.

[0038] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A ventilation cooling discharge type ceramic electrode, characterized in that: include: An electrode body (100), and a conductive structure arranged on the electrode body (100); The electrode body (100) comprises: a bottom plate (110), a first segment (120) with one end extending upward from one side of the bottom plate (110) and the other end being a free end, and a second segment (130) with one end extending upward from the other side of the bottom plate (110) and the other end being a free end; a ventilation duct (140) is provided between the bottom plate (110), the first segment (120) and the second segment (130) and is connected front to back, and the ventilation duct (140) is used to dissipate heat energy generated by the ventilation cooling discharge ceramic electrode; the electrode body (100) is U-shaped; The conductive structure is a conductive coating (200) coated on the bottom plate (110) and located in the ventilation duct (140).

2. The ventilation cooling discharge type ceramic electrode according to claim 1, characterized in that: The first segment (120) and the second segment (130) are respectively arranged vertically on the bottom plate (110).

3. The ventilation cooling discharge type ceramic electrode according to claim 1, characterized in that: The conductive coating (200) is made of positive electrode material.

4. The ventilation-cooled discharge ceramic electrode according to claim 1, characterized in that: The width of the conductive coating (200) is the same as the width of the ventilation channel (140), and the length of the conductive coating (200) is shorter than the length of the ventilation channel (140).

5. The ventilation-cooled discharge ceramic electrode according to claim 1, characterized in that: The surface of the bottom plate (110) away from the ventilation duct (140) is a plane (111).

6. The ventilation-cooling discharge type ceramic electrode according to claim 1, characterized in that: The outer sides of the first segment (120) and the second segment (130) are both provided with grooves (150) that are recessed inwards and pass through from front to back.

7. The ventilation-cooling discharge type ceramic electrode according to claim 6, characterized in that: The groove (150) is in an arc shape.

8. A corona machine, characterized in that: include: A corona roller (300), and a ventilation-cooling discharge ceramic electrode according to any one of claims 1 to 7, with a discharge gap formed between the corona roller (300).

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