Gas discharge tube and manufacturing method and device of gas discharge tube

Abstract

The embodiment of the invention provides a gas discharge tube and a manufacturing method and device of the gas discharge tube, and belongs to the technical field of overvoltage protection. The gas discharge tube comprises a porcelain tube which is uniformly provided with a plurality of discharge gaps; a first mounting surface is arranged on the first surface of the porcelain tube around each discharge gap, a second mounting surface is arranged on the second surface of the porcelain tube around each discharge gap, and a first electrode and a second electrode are correspondingly arranged respectively; the first target electrode is connected with the first pin, each first electrode pair comprises two first residual electrodes connected through a connecting piece, the second target electrode is connected with the second pin, and each second electrode pair comprises two second residual electrodes connected through a connecting piece. Wherein the relative positions of the first electrode pair and the second electrode pair on the first mounting surface or the second mounting surface corresponding to the discharge gap are not completely the same. Through the provided scheme, an intermediate electrode is omitted, the volume of the gas discharge tube is reduced, and the production efficiency is further improved.

Description

Technical Field

[0001] The present application relates to the field of overvoltage protection technology, and in particular to a gas discharge tube and a method and device for manufacturing the gas discharge tube. Background Art

[0002] With the development of gas discharge tube technology, this type of equipment is widely used in various power systems and electronic equipment. Traditional multi-gap gas discharge tubes usually contain multiple intermediate electrodes, which makes the overall volume larger. Summary of the invention

[0003] In order to solve the above technical problems, the embodiments of the present application provide a gas discharge tube and a method and device for manufacturing the gas discharge tube.

[0004] In a first aspect, an embodiment of the present application provides a gas discharge tube, the gas discharge tube comprising:

[0005] A porcelain tube, wherein a plurality of discharge gaps are evenly arranged on the porcelain tube; a first mounting surface is arranged around each of the discharge gaps on the first surface of the porcelain tube, a second mounting surface is arranged around each of the discharge gaps on the second surface of the porcelain tube, a corresponding first electrode is arranged on the first mounting surface of each of the discharge gaps; and a corresponding second electrode is arranged on the second mounting surface of each of the discharge gaps;

[0006] The plurality of first electrodes include: a first target electrode and a plurality of first remaining electrodes;

[0007] The first target electrode is connected to the first pin, each of the first remaining electrodes is divided into a plurality of first electrode pairs, each of the first electrode pairs includes two of the first remaining electrodes connected by a connecting sheet;

[0008] The plurality of second electrodes include: a second target electrode and a plurality of second remaining electrodes;

[0009] The second target electrode is connected to the second pin, and each of the second remaining electrodes is divided into a plurality of second electrode pairs, each of the second electrode pairs includes two second remaining electrodes connected by the connecting sheet, wherein the relative positions of the first electrode pair and the second electrode pair on the first mounting surface or the second mounting surface corresponding to the discharge gap are not exactly the same.

[0010] In one embodiment, the first electrode and / or the second electrode is made of an iron-nickel alloy or oxygen-free copper.

[0011] In one embodiment, the number of the discharge gaps is greater than or equal to 2.

[0012] In one embodiment, the first target electrode and the second target electrode are not disposed on the same discharge gap on the porcelain tube.

[0013] In one embodiment, the connecting piece is made of tinned copper wire.

[0014] In one embodiment, the shape of the porcelain tube is square or round.

[0015] In a second aspect, an embodiment of the present application provides a method for manufacturing a gas discharge tube, the method comprising:

[0016] The first electrode, the first welding piece, the porcelain tube, the second welding piece and the second electrode are assembled in sequence according to a preset order to obtain a graphite sealing mold, wherein the assembly process includes: the porcelain tube is evenly provided with a plurality of discharge gaps; a first mounting surface is arranged around each discharge gap on the first surface of the porcelain tube, and a second mounting surface is arranged around each discharge gap on the second surface of the porcelain tube, and a corresponding first welding piece and a first electrode are arranged in sequence on the first mounting surface of each discharge gap; a corresponding second welding piece and a second electrode are arranged on the second mounting surface of each discharge gap, wherein the plurality of the first electrodes include: a first target electrode and a plurality of first remaining electrodes; the plurality of the second electrodes include: a second target electrode and a plurality of second remaining electrodes;

[0017] The graphite sealing mold is sealed, and the sealed graphite sealing mold is subjected to aging, leak detection and electroplating treatment in sequence to obtain a graphite sealing mold to be welded;

[0018] Connecting the first target electrode in the graphite sealing mold to be welded to the first pin, and dividing each of the first remaining electrodes into a plurality of first electrode pairs, each of the first electrode pairs including two of the first remaining electrodes connected by a connecting sheet;

[0019] Connecting the second target electrode in the graphite sealing mold to be welded to the second pin, and dividing each of the second remaining electrodes into a plurality of second electrode pairs, each of the second electrode pairs including two second remaining electrodes connected by the connecting sheet;

[0020] The graphite sealing mold to be welded is welded by a reflow welding device to obtain a semi-finished gas discharge tube;

[0021] The semi-finished gas discharge tube is packaged, and the packaged semi-finished gas discharge tube is placed in an oven for curing to obtain a gas discharge tube.

[0022] In one embodiment, solder paste is applied between each of the first remaining electrodes, each of the second remaining electrodes and the connecting piece, and a soldering process is performed on each of the first remaining electrodes, each of the second remaining electrodes and the connecting piece by the reflow soldering equipment.

[0023] In one embodiment, a performance test is performed on the gas discharge tube;

[0024] The production information is recorded on the front or back of the gas discharge tube that has passed the performance test by a laser printer.

[0025] In a third aspect, an embodiment of the present application provides a device for manufacturing a gas discharge tube, the device for manufacturing a gas discharge tube comprising:

[0026] An assembly module is used to assemble a first electrode, a first welding piece, a porcelain tube, a second welding piece and a second electrode in sequence according to a preset order to obtain a graphite sealing mold, wherein the assembly process includes: the porcelain tube is evenly provided with a plurality of discharge gaps; a first mounting surface is provided around each discharge gap on the first surface of the porcelain tube, and a second mounting surface is provided around each discharge gap on the second surface of the porcelain tube, and a corresponding first welding piece and a first electrode are sequentially provided on the first mounting surface of each discharge gap; and a corresponding second welding piece and a second electrode are respectively provided on the second mounting surface of each discharge gap, wherein the plurality of the first electrodes include: a first target electrode and a plurality of first remaining electrodes; and the plurality of the second electrodes include: a second target electrode and a plurality of second remaining electrodes;

[0027] A sealing module is used to seal the graphite sealing mold, and perform aging, leak detection and electroplating treatment on the sealed graphite sealing mold in sequence to obtain a graphite sealing mold to be welded;

[0028] A first connection module, used for connecting the first target electrode in the graphite sealing mold to be welded to the first pin, and dividing each of the first remaining electrodes into a plurality of first electrode pairs, each of the first electrode pairs comprising two of the first remaining electrodes connected by a connecting sheet;

[0029] A second connection module, used for connecting the second target electrode in the graphite sealing mold to be welded to the second pin, and dividing each of the second remaining electrodes into a plurality of second electrode pairs, each of the second electrode pairs including two of the second remaining electrodes connected by the connecting sheet;

[0030] A welding module, used for welding the graphite sealing mold to be welded by reflow welding equipment to obtain a semi-finished gas discharge tube;

[0031] The packaging module is used to package the semi-finished gas discharge tube and put the packaged semi-finished gas discharge tube into an oven for curing to obtain a gas discharge tube.

[0032] The gas discharge tube and the manufacturing method and device of the gas discharge tube provided by the above-mentioned application, wherein the gas discharge tube comprises: a porcelain tube, wherein the porcelain tube is evenly provided with a plurality of discharge gaps; a first mounting surface is arranged around each of the discharge gaps on the first surface of the porcelain tube, and a second mounting surface is arranged around each of the discharge gaps on the second surface of the porcelain tube, and a corresponding first electrode is arranged on the first mounting surface of each of the discharge gaps; a corresponding second electrode is arranged on the second mounting surface of each of the discharge gaps; the plurality of first electrodes comprise: a first target electrode and a plurality of first remaining electrodes; the first target electrode is connected to the first pin, and each of the first remaining electrodes is divided into a plurality of groups of first electrode pairs, and each of the first electrode pairs comprises two of the first remaining electrodes connected by a connecting piece; the plurality of second electrodes comprise: a second target electrode and a plurality of second remaining electrodes; the second target electrode is connected to the second pin, and each of the second remaining electrodes is divided into a plurality of groups of second electrode pairs, and each of the second electrode pairs comprises two of the second remaining electrodes connected by the connecting piece, wherein the relative positions of the first electrode pair and the second electrode pair on the first mounting surface or the second mounting surface corresponding to the discharge gap are not completely the same, and through the provided scheme, the intermediate electrode is omitted, the volume of the gas discharge tube is reduced, and the production efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and should not be regarded as limiting the scope of protection of the present application. In each of the drawings, similar components are numbered similarly.

[0034] Figure 1 A schematic diagram of the structure of a gas discharge tube provided in an embodiment of the present application is shown;

[0035] Figure 2 A schematic diagram of the structure of a discharge gap provided in an embodiment of the present application is shown;

[0036] Figure 3 Another schematic diagram of the structure of the gas discharge tube provided in the embodiment of the present application is shown;

[0037] Figure 4 A schematic diagram of the structure of the second side of the porcelain tube provided in an embodiment of the present application is shown;

[0038] Figure 5 Another structural schematic diagram of a gas discharge tube provided in an embodiment of the present application is shown;

[0039] Figure 6 A schematic diagram of a process of manufacturing a gas discharge tube provided in an embodiment of the present application is shown;

[0040] Figure 7 A schematic diagram of a packaging structure of a gas discharge tube provided in an embodiment of the present application is shown;

[0041] Figure 8 A schematic structural diagram of a gas discharge tube manufacturing device provided in an embodiment of the present application is shown.

[0042] Icons: 10-first pin; 20-first electrode; 30-porcelain tube; 40-connecting piece; 50-discharge gap; 60-second pin; 70-second electrode; 800-gas discharge tube manufacturing device; 801-assembly module; 802-sealing module; 803-first connection module; 804-second connection module; 805-welding module; 806-packaging module. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0044] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0045] Hereinafter, the terms "including", "having" and their cognates, which may be used in various embodiments of the present application, are intended only to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing items or adding the possibility of one or more features, numbers, steps, operations, elements, components, or combinations of the foregoing items.

[0046] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0047] Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as those generally understood by those skilled in the art to which the various embodiments of the present application belong. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meanings as the contextual meanings in the relevant technical field and will not be interpreted as having idealized meanings or overly formal meanings unless clearly defined in the various embodiments of the present application.

[0048] Multi-gap gas discharge tubes are usually used as an overvoltage protection device. They are a switching type protection device composed of ceramic materials, welding sheets, multiple electrodes and inert gas filled inside. Its basic working principle is to maintain the arc discharge voltage generated by multiple inert gas gaps in series, and this voltage value is equivalent to n times the arc discharge voltage of a single inert gas gap. When the maintenance voltage at both ends of the multi-gap gas discharge tube in series exceeds the AC voltage peak or DC voltage provided by the power supply system, the overvoltage will break down the multi-gap gas discharge tube, thereby discharging the overcurrent. After the surge overvoltage phenomenon ends, the power supply system can no longer provide current to the multi-gap gas discharge tube, so the tube will automatically shut down.

[0049] The existing multi-gap gas discharge tube structure is mainly composed of a porcelain tube and multiple superimposed electrodes. This design results in a large volume and low space utilization, which makes it difficult to meet application scenarios with strict volume requirements, especially when the electromagnetic compatibility distance is small. There are obvious limitations. In addition, the middle electrode needs to be coated with a specific discharge material on both sides, which makes the production process more complicated and affects the production efficiency. In this regard, the present application proposes a gas discharge tube and a method for manufacturing a gas discharge tube.

[0050] Example 1

[0051] The present application embodiment provides a gas discharge tube, such as Figure 1 As shown, the gas discharge tube includes: a porcelain tube 30, on which a plurality of discharge gaps 50 are evenly arranged; a first mounting surface is arranged around each of the discharge gaps 50 on the first surface of the porcelain tube 30, a second mounting surface is arranged around each of the discharge gaps 50 on the second surface of the porcelain tube 30, a corresponding first electrode 20 is arranged on the first mounting surface of each of the discharge gaps 50; and a corresponding second electrode 70 is arranged on the second mounting surface of each of the discharge gaps 50.

[0052] The plurality of first electrodes 20 include: a first target electrode and a plurality of first remaining electrodes; the first target electrode is connected to the first pin 10, each of the first remaining electrodes is divided into a plurality of first electrode 20 pairs, each of the first electrode 20 pairs includes two first remaining electrodes connected by a connecting sheet 40;

[0053] The plurality of second electrodes 70 include: a second target electrode and a plurality of second remaining electrodes; the second target electrode is connected to the second pin 60, each of the second remaining electrodes is divided into a plurality of groups of second electrode 70 pairs, each of the second electrode 70 pairs includes two second remaining electrodes connected by the connecting sheet 40, wherein the relative positions of the first electrode 20 pair and the second electrode 70 pair on the first mounting surface or the second mounting surface corresponding to the discharge gap 50 are not completely the same.

[0054] Optionally, the number of the discharge gaps 50 is greater than or equal to 2.

[0055] It should be noted that if Figure 2 As shown, Figure 2 The figure is a schematic diagram of the discharge gap structure before assembly. Multiple discharge gaps 50 can be evenly arranged on the porcelain tube 30 to increase the arc voltage of the discharge tube, thereby improving the discontinuous current capability of the discharge tube. When used in a power supply system, the number of discharge gaps 50 is selected according to the power supply voltage of the power supply system. Since the power supply is 220V, the arc voltage of the discharge tube must be greater than 220V to restore to a high impedance state to disconnect the circuit. Figure 3 As shown, Figure 3 is another structural schematic diagram of a gas discharge tube, wherein the gas discharge tube is provided with three discharge gaps. In other embodiments, the number of the discharge gaps is any other constant value greater than 2, which is not limited here.

[0056] It is further explained that if Figure 4 As shown, Figure 4 The figure is a schematic diagram of the structure of the second side of the ceramic sheet, wherein the positions of the electrode pairs on the first side and the electrode pairs on the second side of the ceramic tube 30 are offset from each other. Each independent discharge gap 50 is connected in series by a connecting piece 40, which can increase the arc voltage of the entire discharge tube. After the surge voltage is released, the power supply system is insufficient to supply power to the discharge tube, so that the discharge tube is disconnected automatically, thereby improving the discontinuous current capacity of the discharge tube in the power supply system. Since the discharge tube has only two end electrodes, the middle electrode is omitted, the production process is reduced, and the production efficiency is improved.

[0057] Optionally, the shape of the porcelain tube is square or round. Figure 3 As shown, the specific schematic diagram of the square porcelain tube is as follows Figure 5 As shown, it should be noted that the shape of the porcelain tube can be set according to needs and is not limited here.

[0058] In one embodiment, the first electrode 20 and / or the second electrode 70 is made of an iron-nickel alloy or oxygen-free copper.

[0059] In one embodiment, the first target electrode and the second target electrode are not disposed on the porcelain tube 30 in the same discharge gap 50 .

[0060] It should be noted that the positions of the first target electrode connected to the first pin 10 and the second target electrode connected to the second pin 60 are not in the same discharge gap 50. When selecting the target electrode for the connecting pin, the electrode close to the edge of the porcelain tube 30 should be selected as the target electrode, and the electrodes outside the target electrode should be connected in pairs through the connecting piece 40.

[0061] In one embodiment, the connecting piece 40 is made of tinned copper wire.

[0062] It should be noted that the material of the connecting piece 40 can be tinned copper clad steel wire or electronic wire or other materials with conductive properties.

[0063] The gas discharge tube provided by the present application comprises: a porcelain tube, on which a plurality of discharge gaps are evenly arranged; a first mounting surface is arranged around each of the discharge gaps on the first surface of the porcelain tube, a second mounting surface is arranged around each of the discharge gaps on the second surface of the porcelain tube, a corresponding first electrode is arranged on the first mounting surface of each of the discharge gaps; a corresponding second electrode is arranged on the second mounting surface of each of the discharge gaps; the plurality of first electrodes comprise: a first target electrode and a plurality of first remaining electrodes; the first target electrode is connected to a first pin, each of the first remaining electrodes is divided into a plurality of groups of first electrode pairs, each of the first electrode pairs comprises two of the first remaining electrodes connected by a connecting sheet; the plurality of second electrodes comprise: a second target electrode and a plurality of second remaining electrodes; the second target electrode is connected to a second pin, each of the second remaining electrodes is divided into a plurality of groups of second electrode pairs, each of the second electrode pairs comprises two of the second remaining electrodes connected by the connecting sheet, wherein the relative positions of the first electrode pair and the second electrode pair on the first mounting surface or the second mounting surface corresponding to the discharge gap are not completely the same, and through the provided scheme, the intermediate electrode is omitted, the volume of the gas discharge tube is reduced, and the production efficiency is further improved.

[0064] Example 2

[0065] The embodiment of the present application provides a method for manufacturing a gas discharge tube.

[0066] See also Figure 6 , the manufacturing method of the gas discharge tube includes:

[0067] S601, assembling the first electrode 20, the first welding sheet, the porcelain tube 30, the second welding sheet and the second electrode 70 in sequence according to a preset order to obtain a graphite sealing mold, wherein the assembly process includes: the porcelain tube 30 is evenly provided with a plurality of discharge gaps 50; a first mounting surface is arranged around each discharge gap 50 on the first surface of the porcelain tube 30, and a second mounting surface is arranged around each discharge gap 50 on the second surface of the porcelain tube 30, and a corresponding first welding sheet and a first electrode 20 are arranged in sequence on the first mounting surface of each of the discharge gaps 50; and a corresponding second welding sheet and a second electrode 70 are arranged on the second mounting surface of each of the discharge gaps 50, wherein the plurality of the first electrodes 20 include: a first target electrode and a plurality of first remaining electrodes; and the plurality of the second electrodes 70 include: a second target electrode and a plurality of second remaining electrodes.

[0068] It should be noted that before assembly, a certain thickness of discharge material must be coated on the mesh surface of each electrode. The discharge material usually has good conductivity. After coating on the electrode mesh surface, it can reduce the resistance of the electrode surface, allowing the current to pass through the electrode more smoothly, thereby improving the discharge efficiency and ensuring that electrical energy can be released quickly and effectively when discharge is required, limiting the generation of overvoltage.

[0069] It is further explained that the first electrode 20, the first welding sheet, the porcelain tube 30, the second welding sheet and the second electrode 70 are placed into the graphite sealing mold layer by layer using the sieve plate in the order of one layer. By placing the components in this order, the sieve plate can provide stable support for each component, so that it can maintain a fixed position in the graphite sealing mold.

[0070] S602, sealing the graphite sealing mold, and sequentially performing aging, leak detection and electroplating treatments on the sealed graphite sealing mold to obtain a graphite sealing mold to be welded.

[0071] In this embodiment, the assembled graphite sealing mold is placed on the graphite tray of the sealing furnace. After closing the furnace door, the furnace of the sealing furnace is first evacuated, then heated and filled with inert gas, and then heated to about 850 degrees, and finally cooled to room temperature. The graphite sealing mold treated as above is loaded with more than 1.5 times the nominal discharge voltage, the current is passed through the gas discharge tube, and the power-on time is controlled to achieve aging of the graphite sealing mold. The aged graphite sealing mold is placed in a sealed container with several times atmospheric pressure gas for a period of time to determine in advance whether there is a leak. A certain thickness of nickel or tin is plated on the surface of the graphite sealing mold to prevent the product from being easily oxidized and better welded.

[0072] It should be noted that the vacuuming process can remove air and impurities in the furnace to prevent these substances from reacting with internal components during high temperature and affecting the performance of the gas discharge tube. Filling with inert gas and heating treatment can help stabilize the internal structure of the gas discharge tube, reduce structural stress and deformation that may be caused by factors such as temperature changes, and improve product stability and reliability.

[0073] S603 , connecting the first target electrode in the graphite sealing mold to be welded to the first pin 10 , and dividing each of the first remaining electrodes into a plurality of first electrode pairs 20 , each of the first electrode pairs 20 including two of the first remaining electrodes connected by a connecting sheet 40 .

[0074] S604, connecting the second target electrode in the graphite sealing mold to be welded to the second pin 60, and dividing each of the second remaining electrodes into a plurality of second electrode pairs 70, each of the second electrode pairs 70 including two second remaining electrodes connected by the connecting sheet 40.

[0075] S605, welding the graphite sealing mold to be welded by reflow welding equipment to obtain a semi-finished gas discharge tube.

[0076] In one embodiment, solder paste is applied between each of the first remaining electrodes, each of the second remaining electrodes and the connecting piece 40 , and a soldering process is performed on each of the first remaining electrodes, each of the second remaining electrodes and the connecting piece 40 by the reflow soldering equipment.

[0077] It should be noted that a welding mold is used to install each electrode and connecting piece 40 on the welding mold, and a proper amount of solder paste is applied between the electrode piece and the connecting piece 40. After clamping with a clamp, it is soldered through a reflow soldering device. The solder paste has good conductivity. After applying a proper amount of solder paste between the electrode piece and the connecting piece 40 and reflow soldering, a reliable electrical connection can be formed to ensure smooth transmission of current between components and reduce the risk of signal attenuation or circuit failure due to poor contact.

[0078] It is further explained that the reflow soldering equipment can accurately control the temperature and time during the soldering process, so that the solder paste melts and solidifies under a suitable temperature environment. By setting a reasonable temperature curve, it can be ensured that the solder paste is fully melted and forms a good metallurgical bond with the surface of the electrode sheet and the connecting sheet 40, while avoiding problems such as component damage or solder oxidation caused by overheating.

[0079] S606, packaging the semi-finished gas discharge tube, and putting the packaged semi-finished gas discharge tube into an oven for curing to obtain a gas discharge tube.

[0080] like Figure 7As shown, after the semi-finished gas discharge tube is preheated, the encapsulation material is evenly sprayed or dipped onto the surface of the semi-finished gas discharge tube to ensure that the semi-finished gas discharge tube is completely covered. The encapsulation material can be epoxy resin or phenolic resin. The encapsulated semi-finished gas discharge tube is placed in a constant temperature oven to remove moisture from the encapsulation material. After it is completely hardened, a completely enclosed space is formed inside it, so that the semi-finished gas discharge tube is completely isolated from the external environment, achieving a better discharge environment that is not disturbed by the outside, so as to obtain a gas discharge tube.

[0081] In one implementation, a performance test is performed on the gas discharge tube; and production information is recorded on the front or back side of the gas discharge tube that has passed the performance test by a laser printer.

[0082] It should be noted that the gas discharge tube is tested using a testing machine for conventional performance, such as DC breakdown voltage, withstand voltage and insulation resistance. After the defective ones are sorted out, the qualified gas discharge tubes are printed on their surface using a laser printer. The printed words may include company logo, product model, product certification, production batch number and other information, which are not limited here.

[0083] The manufacturing method of the gas discharge tube provided in this embodiment eliminates the need for an intermediate electrode, reduces the volume of the gas discharge tube, and further improves production efficiency.

[0084] Example 3

[0085] In addition, an embodiment of the present application provides a device for manufacturing a gas discharge tube.

[0086] like Figure 8 As shown, the manufacturing device 800 of the gas discharge tube includes:

[0087] The assembly module 801 is used to assemble the first electrode, the first welding piece, the porcelain tube, the second welding piece and the second electrode in sequence according to a preset order to obtain a graphite sealing mold, wherein the assembly process includes: the porcelain tube is evenly provided with a plurality of discharge gaps; a first mounting surface is provided around each discharge gap on the first surface of the porcelain tube, and a second mounting surface is provided around each discharge gap on the second surface of the porcelain tube, and a corresponding first welding piece and a first electrode are sequentially provided on the first mounting surface of each discharge gap; a corresponding second welding piece and a second electrode are respectively provided on the second mounting surface of each discharge gap, wherein the plurality of the first electrodes include: a first target electrode and a plurality of first remaining electrodes; the plurality of the second electrodes include: a second target electrode and a plurality of second remaining electrodes;

[0088] The sealing module 802 is used to seal the graphite sealing mold, and perform aging, leak detection and electroplating treatment on the sealed graphite sealing mold in sequence to obtain a graphite sealing mold to be welded;

[0089] A first connection module 803, used to connect the first target electrode in the graphite sealing mold to be welded with the first pin, and divide each of the first remaining electrodes into a plurality of first electrode pairs, each of the first electrode pairs including two of the first remaining electrodes connected by a connecting sheet;

[0090] A second connection module 804 is used to connect the second target electrode in the graphite sealing mold to be welded with the second pin, and divide each of the second remaining electrodes into a plurality of second electrode pairs, each of the second electrode pairs includes two second remaining electrodes connected by the connecting sheet;

[0091] The welding module 805 is used to weld the graphite sealing mold to be welded by reflow welding equipment to obtain a semi-finished gas discharge tube;

[0092] The packaging module 806 is used to package the semi-finished gas discharge tube and put the packaged semi-finished gas discharge tube into an oven for curing to obtain a gas discharge tube.

[0093] The gas discharge tube manufacturing device 800 provided in the embodiment of the present application can execute the steps of the gas discharge tube manufacturing method provided in the above method embodiment 2, which will not be described again to avoid repetition.

[0094] The manufacturing device of the gas discharge tube provided in this embodiment eliminates the intermediate electrode, reduces the volume of the gas discharge tube, and further improves the production efficiency.

[0095] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or terminal including the element.

[0096] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A gas discharge tube, characterized in that: include: A porcelain tube, wherein a plurality of discharge gaps are evenly arranged on the porcelain tube; A first mounting surface is arranged around each of the discharge gaps on the first surface of the porcelain tube, a second mounting surface is arranged around each of the discharge gaps on the second surface of the porcelain tube, and a corresponding first electrode is arranged on the first mounting surface of each of the discharge gaps; Disposing a corresponding second electrode on the second mounting surface of each of the discharge gaps; The plurality of first electrodes include: a first target electrode and a plurality of first remaining electrodes; The first target electrode is connected to the first pin, each of the first remaining electrodes is divided into a plurality of first electrode pairs, each of the first electrode pairs includes two of the first remaining electrodes connected by a connecting sheet; The plurality of second electrodes include: a second target electrode and a plurality of second remaining electrodes; The second target electrode is connected to the second pin, and each of the second remaining electrodes is divided into a plurality of second electrode pairs, each of the second electrode pairs includes two second remaining electrodes connected by the connecting sheet, wherein the relative positions of the first electrode pair and the second electrode pair on the first mounting surface or the second mounting surface corresponding to the discharge gap are not exactly the same.

2. The gas discharge tube according to claim 1, characterized in that The first electrode and / or the second electrode is made of iron-nickel alloy or oxygen-free copper.

3. The gas discharge tube according to claim 1 or 2, characterized in that: The number of the discharge gaps is greater than or equal to 2.

4. The gas discharge tube according to claim 1, characterized in that: The first target electrode and the second target electrode are not disposed at the same discharge gap on the porcelain tube.

5. The gas discharge tube according to claim 1, characterized in that: The connecting piece is made of tinned copper wire.

6. The gas discharge tube according to claim 1, characterized in that The shape of the porcelain tube is square or round.

7. A method for manufacturing a gas discharge tube, characterized in that: The method comprises: The first electrode, the first welding piece, the porcelain tube, the second welding piece and the second electrode are assembled in sequence according to a preset order to obtain a graphite sealing mold, wherein the assembly process includes: the porcelain tube is evenly provided with a plurality of discharge gaps; a first mounting surface is arranged around each discharge gap on the first surface of the porcelain tube, and a second mounting surface is arranged around each discharge gap on the second surface of the porcelain tube, and a corresponding first welding piece and a first electrode are arranged in sequence on the first mounting surface of each discharge gap; a corresponding second welding piece and a second electrode are arranged on the second mounting surface of each discharge gap, wherein the plurality of the first electrodes include: a first target electrode and a plurality of first remaining electrodes; the plurality of the second electrodes include: a second target electrode and a plurality of second remaining electrodes; The graphite sealing mold is sealed, and the sealed graphite sealing mold is subjected to aging, leak detection and electroplating treatment in sequence to obtain a graphite sealing mold to be welded; Connecting the first target electrode in the graphite sealing mold to be welded to the first pin, and dividing each of the first remaining electrodes into a plurality of first electrode pairs, each of the first electrode pairs including two of the first remaining electrodes connected by a connecting sheet; Connecting the second target electrode in the graphite sealing mold to be welded to the second pin, and dividing each of the second remaining electrodes into a plurality of second electrode pairs, each of the second electrode pairs including two second remaining electrodes connected by the connecting sheet; The graphite sealing mold to be welded is welded by a reflow welding device to obtain a semi-finished gas discharge tube; The semi-finished gas discharge tube is packaged, and the packaged semi-finished gas discharge tube is placed in an oven for curing to obtain a gas discharge tube.

8. The method for manufacturing a gas discharge tube according to claim 7, characterized in that: The method of welding the graphite sealing mold to be welded by a reflow welding device to obtain a semi-finished gas discharge tube comprises: Solder paste is applied between each of the first remaining electrodes, each of the second remaining electrodes and the connecting sheet respectively, and a soldering process is performed on each of the first remaining electrodes, each of the second remaining electrodes and the connecting sheet by using the reflow soldering equipment.

9. The method for manufacturing a gas discharge tube according to claim 7, characterized in that: The method further comprises: Performing a performance test on the gas discharge tube; The production information is recorded on the front or back of the gas discharge tube that has passed the performance test by a laser printer.

10. A gas discharge tube manufacturing device, characterized in that: The device comprises: An assembly module is used to assemble a first electrode, a first welding piece, a porcelain tube, a second welding piece and a second electrode in sequence according to a preset order to obtain a graphite sealing mold, wherein the assembly process includes: the porcelain tube is evenly provided with a plurality of discharge gaps; a first mounting surface is provided around each discharge gap on the first surface of the porcelain tube, and a second mounting surface is provided around each discharge gap on the second surface of the porcelain tube, and a corresponding first welding piece and a first electrode are sequentially provided on the first mounting surface of each discharge gap; and a corresponding second welding piece and a second electrode are respectively provided on the second mounting surface of each discharge gap, wherein the plurality of the first electrodes include: a first target electrode and a plurality of first remaining electrodes; and the plurality of the second electrodes include: a second target electrode and a plurality of second remaining electrodes; A sealing module is used to seal the graphite sealing mold, and perform aging, leak detection and electroplating treatment on the sealed graphite sealing mold in sequence to obtain a graphite sealing mold to be welded; A first connection module, used for connecting the first target electrode in the graphite sealing mold to be welded to the first pin, and dividing each of the first remaining electrodes into a plurality of first electrode pairs, each of the first electrode pairs comprising two of the first remaining electrodes connected by a connecting sheet; A second connection module, used for connecting the second target electrode in the graphite sealing mold to be welded to the second pin, and dividing each of the second remaining electrodes into a plurality of second electrode pairs, each of the second electrode pairs including two of the second remaining electrodes connected by the connecting sheet; A welding module, used for welding the graphite sealing mold to be welded by a reflow welding device to obtain a semi-finished gas discharge tube; The packaging module is used to package the semi-finished gas discharge tube and put the packaged semi-finished gas discharge tube into an oven for curing to obtain a gas discharge tube.

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