Discharge electrode structure and static electricity eliminator assembly

Abstract

The utility model discloses a discharge electrode structure and an electrostatic eliminator assembly. The discharge electrode structure comprises an electrode main body, the electrode main body is used for generating ions when high voltage is applied so as to eliminate static electricity; the electrode main body comprises a metal tube and a metal wire; wherein one end of the metal wire is fixedly connected with the inner wall of the metal tube; the other end of the metal wire extends out of the metal pipe, and the end face of the metal wire is a flat tangent plane. According to the utility model, the electrode main body comprising the metal tube and the metal wire is arranged, and one end, far away from the metal tube, of the metal wire is the flat section, so that the discharge process can be uniformly carried out on the end surface; and no obvious difference exists in the application scene of unipolar high voltage, so that the condition of poor static electricity eliminating effect caused by ion proportion difference is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of static eliminators, and in particular to a discharge electrode structure and a static eliminator assembly. Background Technology

[0002] In the field of electrostatic discharge (ESD) technology, traditional discharge electrode structures often employ a pointed design. Initially, pointed discharge electrodes utilize their high radius of curvature at the tip to generate a strong electric field when a high voltage is applied, ionizing surrounding air molecules and thus achieving ESD elimination. However, with increased use, the tip of the pointed discharge electrode inevitably becomes blunt due to the discharge process. This blunting alters the electric field distribution at the tip, gradually reducing its ionization capability. Based on the relationship between electric field strength and radius of curvature, a blunted tip implies an increased radius of curvature, resulting in a lower electric field strength at the same voltage. This increases the difficulty of ionizing air molecules, leading to a decrease in the number of ions generated and ultimately a significant reduction in ESD elimination capability.

[0003] The aforementioned problems are even more pronounced in unipolar high-voltage applications. Specifically, when a positive high voltage is applied, due to the interaction mechanism between positive ions and the electrode material, the tip of the pointed discharge electrode becomes blunt much faster than when a negative high voltage is applied. This difference leads to a significant deviation in the ratio of positive to negative ions generated during long-term use, making it impossible to maintain a stable ion balance. Consequently, the electrostatic elimination effect is greatly reduced, making it difficult to meet the needs of industrial production (such as electronics manufacturing) with high requirements for electrostatic elimination precision and stability.

[0004] Therefore, a discharge electrode structure and an electrostatic eliminator assembly are needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a discharge electrode structure and an electrostatic eliminator assembly, so that in unipolar high voltage application scenarios, the material loss of the discharge electrode structure during the discharge process is more uniform, thereby effectively improving the situation where the electrostatic elimination effect is poor due to the difference in ion ratio.

[0006] To solve the above-mentioned technical problems, this utility model provides a discharge electrode structure, including an electrode body;

[0007] The electrode body is used to generate ions when a high voltage is applied to eliminate static electricity;

[0008] The electrode body includes a metal tube and a metal wire;

[0009] One end of the metal wire is fixedly connected to the inner wall of the metal tube;

[0010] The other end of the metal wire extends to the outside of the metal tube, and the end face is set as a flat cut surface.

[0011] Furthermore, the metal wire is configured as a cylindrical structure, with the end face of the metal wire away from the metal tube forming the flat cut surface.

[0012] Furthermore, multiple metal wires are provided, and all of the multiple metal wires are fixed inside the same metal tube.

[0013] Furthermore, the ends of the plurality of metal wires are flush with the ends away from the metal tube.

[0014] On the other hand, the present invention also proposes an electrostatic eliminator assembly, including the discharge electrode structure described in the above embodiments;

[0015] The static eliminator assembly also includes:

[0016] A high-voltage resistor is connected to the discharge electrode structure to limit the current flowing to the discharge electrode structure;

[0017] A PCB board, wherein conductive lines are provided on the PCB board for connecting the discharge electrode structure and the high-voltage resistor sheet.

[0018] Furthermore, both the metal tube and the high-voltage resistor are welded to the conductive circuit.

[0019] Furthermore, it also includes a high-voltage power supply module;

[0020] The high-voltage power supply module is connected to the PCB board and is used to provide a stable high-voltage power supply for the discharge electrode structure.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] By setting an electrode body including a metal tube and a metal wire, and setting the end of the metal wire away from the metal tube as a flat cut surface, the discharge process can be carried out uniformly on the end face. Compared with the pointed discharge electrode in the prior art, the loss difference of this structure is smaller. Correspondingly, it can also ensure that there is no significant difference when used in the application of unipolar high voltage, thereby effectively improving the situation of poor static electricity removal effect caused by the difference in ion ratio. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the discharge electrode structure in one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the static eliminator assembly in another embodiment of the present invention;

[0025] Figure 3 This is a structural schematic diagram of the static eliminator assembly from another perspective in another embodiment of the present invention.

[0026] Reference numerals: 1. Electrode body; 11. Metal tube; 12. Metal wire; 2. High voltage resistor sheet; 3. PCB board; 31. Conductive circuit. Detailed Implementation

[0027] The discharge electrode structure and static eliminator assembly of this utility model will be described in more detail below with reference to the schematic diagrams, which illustrate preferred embodiments of this utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving the advantageous effects of this utility model. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit this utility model.

[0028] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0029] In existing technologies, pointed electrodes tend to accumulate charge at their tips during discharge. This not only leads to excessively high electric field strength at the tips but also easily causes localized thermal effects and material loss during charge conduction. Consequently, over long-term use, the ratio of positive to negative ions produced deviates significantly, making it impossible to maintain a stable ion balance and resulting in poor electrostatic discharge performance. Therefore, a discharge electrode structure is proposed to avoid localized thermal effects and material loss, thereby maintaining a stable ion balance and ensuring effective electrostatic discharge. The specific embodiment is shown below.

[0030] Example 1

[0031] like Figure 1 As shown in the figure, this utility model embodiment proposes a discharge electrode structure, including an electrode body 1, which is used to generate ions when a high voltage is applied to eliminate static electricity.

[0032] The electrode body 1 includes a metal tube 11 and a metal wire 12.

[0033] It should be noted that one end of the metal wire 12 is fixedly connected to the inner wall of the metal tube 11, and the other end of the metal wire 12 extends to the outside of the metal tube 11, and the end face is set as a flat cut surface, so that the charge conduction of the metal wire 12 is relatively uniform during the discharge process, thereby making the material loss distribution more uniform. This can effectively improve the situation of poor static elimination effect caused by the difference in ion ratio after long-term use.

[0034] In one embodiment, the metal wire 12 is configured as a cylindrical structure, with the end face of the metal wire 12 away from the metal tube 11 forming the flat cut surface, so as to further improve the uniformity of charge conduction.

[0035] Furthermore, in other embodiments, multiple metal wires 12 are provided, and all multiple metal wires 12 are fixed in the same metal tube 11. As the number of metal wires 12 increases, more ions can be generated. Thus, the amount of ion generation can be adjusted by adjusting the number of metal wires 12 according to the actual static elimination needs, thereby improving the efficiency and effect of static elimination.

[0036] It should be noted that the ends of the plurality of metal wires 12 furthest from the metal tube 11 are flush.

[0037] In this embodiment, four metal wires 12 are provided, and the four metal wires 12 are arranged in a ring at equal intervals with the axis of the metal tube 11 as the center.

[0038] Furthermore, to extend the service life of the discharge electrode structure, both the metal tube 11 and the metal wire 12 are made of stainless steel. Specifically, since stainless steel contains alloying elements such as chromium and nickel, a dense passivation film can be formed on its surface, giving it excellent corrosion resistance. This effectively resists the erosion of media such as air, water, and weak acids and alkalis, thus enabling the discharge electrode structure to be suitable for various working environments and achieving the goal of extending its service life.

[0039] In other embodiments, the metal tube 11 and the metal wire 12 can also be made of tungsten. Since tungsten has a higher density than conventional metals, it is more durable.

[0040] Example 2

[0041] like Figure 2 and Figure 3 As shown, this embodiment proposes an electrostatic eliminator assembly based on Embodiment 1, including the discharge electrode structure described in Embodiment 1.

[0042] The static eliminator assembly further includes:

[0043] The high-voltage resistor 2 is connected to the discharge electrode structure to limit the current flowing to the discharge electrode structure. This ensures that a suitable electric field strength is formed on the discharge electrode structure to ionize the air, while avoiding damage to the discharge electrode structure caused by excessive current.

[0044] PCB board 3, on which conductive lines 31 are provided for connecting the discharge electrode structure and the high voltage resistor 2.

[0045] In other embodiments, the PCB board 3 also integrates electronic components, such as capacitors and inductors, to adjust circuit parameters, such as voltage and frequency, thereby optimizing the discharge performance of the discharge electrode structure.

[0046] This device employs a discharge electrode structure with a flat cut surface, enabling the discharge process to occur uniformly on the end face of the discharge electrode mechanism. Compared to the pointed discharge electrode in the prior art, the discharge electrode structure with a flat cut surface has a smaller difference in loss during application. Correspondingly, it can also ensure that there is no significant difference in application scenarios with unipolar high voltage, thereby effectively improving the situation where the static electricity removal effect is poor due to the difference in ion ratio.

[0047] In one example, both the metal tube 11 and the high-voltage resistor 2 are welded to the conductive line 31.

[0048] In other embodiments, the static eliminator assembly also includes a high-voltage power supply module (not shown in the figure), which is connected to the PCB board 3 and is used to provide a stable high voltage to the discharge electrode structure. This is prior art and will not be described in detail here.

[0049] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A discharge electrode structure, characterized in that, Includes the electrode body; The electrode body is used to generate ions when a high voltage is applied to eliminate static electricity; The electrode body includes a metal tube and a metal wire; One end of the metal wire is fixedly connected to the inner wall of the metal tube; The other end of the metal wire extends to the outside of the metal tube, and the end face is set as a flat cut surface.

2. The discharge electrode structure as described in claim 1, characterized in that, The metal wire is configured as a cylindrical structure, with the end face of the metal wire away from the metal tube forming the flat cut surface.

3. The discharge electrode structure as described in claim 1, characterized in that, Multiple metal wires are provided, and all of the multiple metal wires are fixed inside the same metal tube.

4. The discharge electrode structure as described in claim 3, characterized in that, The ends of the plurality of metal wires are flush with the ends away from the metal tube.

5. A static eliminator assembly, characterized in that, Includes the discharge electrode structure as described in any one of claims 1-4; The static eliminator assembly also includes: A high-voltage resistor is connected to the discharge electrode structure to limit the current flowing to the discharge electrode structure; A PCB board, wherein conductive lines are provided on the PCB board for connecting the discharge electrode structure and the high-voltage resistor sheet.

6. The static eliminator assembly as described in claim 5, characterized in that, Both the metal tube and the high-voltage resistor are welded to the conductive circuit.

7. The static eliminator assembly as claimed in claim 5, characterized in that, It also includes a high-voltage power supply module; The high-voltage power supply module is connected to the PCB board and is used to provide a stable high-voltage power supply for the discharge electrode structure.

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