A discharge tube assembly

Abstract

The utility model discloses a discharge tube subassembly, including discharge tube, resistance and capacity device and patch flat plate, a plurality of discharge tube series connection forms discharge tube group, and resistance and capacity device is connected in parallel at the both ends of discharge tube group, and is located the side of discharge tube group, and patch flat plate sets up resistance and capacity device outside. Adopt the mode of a plurality of discharge tube series connection, and the resistance and capacity device is collocated to make discharge tube present certain suitable proportion's partial pressure under low frequency alternating current, avoid the voltage distribution uneven and lead to the conduction in advance, and present certain proportion's voltage difference between discharge tube under high frequency surge, make discharge tube trigger conduction in proper order, reduce the voltage accumulation between discharge tube, thereby reduce the impact breakdown voltage of overall circuit.

Description

Technical Field

[0001] This utility model belongs to the field of discharge tube technology, and specifically relates to a discharge tube assembly. Background Technology

[0002] With the continuous advancement of modern electronic technology and the rapid development of discharge tube technology, these key electronic protection devices—discharge tubes—have been widely and deeply applied in various complex power systems and precision electronic equipment due to their unique performance advantages. They constantly protect equipment from potential threats such as voltage fluctuations and surges, ensuring the stable operation of the entire system and data security.

[0003] However, despite the continuous development of discharge tube technology, some performance bottlenecks still exist in mainstream discharge tube products on the market today. One of the most significant problems is their relatively high impulse breakdown voltage. This means that when encountering sudden voltage spikes or surges, the discharge tube may not be able to respond quickly and conduct effectively, thus weakening its immediacy and effectiveness in protecting circuits and posing potential risks to sensitive electronic components.

[0004] Furthermore, as the electronics manufacturing industry transforms towards high automation and intelligence, SMT (Surface Mount Technology) has become the mainstream method for electronic assembly. However, existing discharge tube products often face the problem of frequent material rejection during the loading process when adapted to SMT equipment. This not only increases material loss and costs during production but may also affect production efficiency and product quality, becoming a major obstacle to the large-scale, efficient application of discharge tubes. Utility Model Content

[0005] The purpose of this invention is to provide a discharge tube assembly to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A discharge tube assembly includes a discharge tube, a blocking capacitor, and a patch plate; a plurality of discharge tubes are connected in series to form a discharge tube group, a plurality of blocking capacitors are connected in parallel at both ends of the discharge tube group and located on the side of the discharge tube group, and the patch plate is disposed on the outside of the blocking capacitor.

[0007] Furthermore, several resistors and capacitors are mounted on the side of the discharge tube assembly via a PCB board; these resistors and capacitors are soldered onto the PCB board according to a pre-defined circuit.

[0008] Furthermore, for the same high frequency, the high-frequency impedance modes of resistive and capacitive components are not equal, with the high-frequency impedance being greater than that of the power frequency.

[0009] Furthermore, the resistive and capacitive components correspond one-to-one with the discharge tubes, and the resistive and capacitive components are connected in parallel with their corresponding discharge tubes.

[0010] Furthermore, the number of discharge tubes is greater than or equal to two.

[0011] Furthermore, the number of capacitor components is greater than or equal to two.

[0012] Furthermore, the two ends of the discharge tube assembly are electrically connected to the input and output terminals of the discharge circuit, respectively.

[0013] Furthermore, the resistive and capacitive components include resistors and capacitors connected in series, and each discharge tube is connected in parallel with a resistive and capacitive component.

[0014] Compared with the prior art, the present invention has the following technical effects: Firstly, multiple discharge tubes are connected in series, paired with resistor-capacitor components, to ensure a suitable voltage division ratio under low-frequency AC current. This prevents premature conduction due to uneven voltage distribution. Under high-frequency surges, a certain voltage difference exists between the discharge tubes, causing them to be triggered sequentially and reducing voltage accumulation between them. This lowers the overall circuit's surge breakdown voltage. The lower the surge voltage, the smaller the surge voltage the protected circuit must withstand, and the better the protection effect of the discharge tube assembly.

[0015] Secondly, the surface area of ​​the discharge tube assembly is increased by the surface mounting plate, which makes it easier for the pick-and-place machine's feeding head to pick up the discharge tube assembly, thus facilitating the surface mounting of the discharge tube assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is the circuit schematic diagram of this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0019] Among them: 1. Discharge tube, 2. Resistor and capacitor components, 3. SMD plate, 4. PCB board. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1, please refer to Figures 1 to 2 A discharge tube assembly includes a discharge tube 1, a blocking device 2, and a patch plate 3; a plurality of discharge tubes 1 are connected in series to form a discharge tube group, a plurality of blocking devices 2 are connected in parallel at both ends of the discharge tube group and located on the side of the discharge tube group, and the patch plate 3 is disposed on the outside of the blocking device 2.

[0024] The discharge tube assembly includes at least two discharge tube devices and at least two resistor-capacitor components 2. The two ends of the at least two discharge tube devices connected in series are electrically connected to the first and second ends of the discharge circuit, respectively. Each resistor-capacitor component 2 corresponds to a discharge tube, and the resistor-capacitor component 2 is connected in parallel with its corresponding discharge tube. For the same high frequency, the high-frequency impedance modes of the resistor-capacitor components 2 are not equal, and the high frequency is greater than the power frequency.

[0025] The device comprises a cylindrical device body and a flat plate, with the flat plate located on one side of the outer surface of the device body. The electrodes of the discharge tube are flat electrodes. The provided technical solution can reduce the impulse breakdown voltage of the overall circuit, reduce or even eliminate the protection dead zone, and facilitate device surface mounting. The upper plate is connected to the impedance device through insulating colloid, and the device can be mounted using a pick-and-place machine through the flat electrode of the discharge tube.

[0026] By using a parallel impedance circuit, the impulse breakdown voltage of the overall circuit can be reduced, and the protection blind zone can be decreased.

[0027] In embodiment 2, a first aspect, the present invention provides an auxiliary circuit for the discharge tube assembly, the auxiliary circuit comprising: a resistor-capacitor component 2 and a PCB board 4. The resistor-capacitor component 2 is disposed on the PCB board 4 according to the circuit schematic. The input and output terminals of the PCB board 4 are connected in parallel to the two electrodes of the discharge tube assembly.

[0028] Secondly, the discharge tube assembly of this utility model provides a patch plate 3, which is placed on a PCB board 4.

[0029] Working principle: Firstly, multiple discharge tubes are connected in series, paired with a resistor-capacitor component 2, to ensure that the discharge tubes exhibit a suitable voltage division ratio under low-frequency AC power. This prevents premature conduction due to uneven voltage distribution. Under high-frequency surges, a certain voltage difference exists between the discharge tubes, causing them to be triggered sequentially and reducing voltage accumulation between them, thereby lowering the overall circuit's surge breakdown voltage. The lower the surge voltage, the smaller the surge voltage the protected circuit needs to withstand, and the better the protection effect of the discharge tube assembly.

[0030] Secondly, the surface area of ​​the discharge tube assembly is increased by the surface mounting plate 3, which makes it easier for the pick-and-place machine's feeding head to pick up the discharge tube assembly, thus facilitating the surface mounting of the discharge tube assembly.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A discharge tube assembly, characterized in that, It includes a discharge tube (1), a blocking device (2) and a patch plate (3); a number of discharge tubes (1) are connected in series to form a discharge tube group, a number of blocking devices (2) are connected in parallel at both ends of the discharge tube group and located on the side of the discharge tube group, and the patch plate (3) is set on the outside of the blocking device (2).

2. The discharge tube assembly according to claim 1, characterized in that, Several resistors (2) are set on the side of the discharge tube group through the PCB board (4); several resistors (2) are soldered on the PCB board (4) according to the preset circuit.

3. The discharge tube assembly according to claim 1, characterized in that, For the same high frequency, the high-frequency impedance modes of the resistor-capacitor device (2) are not equal, with the high frequency being greater than the power frequency.

4. A discharge tube assembly according to claim 1, characterized in that, The blocking device (2) corresponds one-to-one with the discharge tube, and the blocking device (2) is connected in parallel with its corresponding discharge tube.

5. A discharge tube assembly according to claim 1, characterized in that, The number of discharge tubes (1) is greater than or equal to two.

6. A discharge tube assembly according to claim 1, characterized in that, The number of the resistant components (2) is greater than or equal to two.

7. A discharge tube assembly according to claim 1, characterized in that, The two ends of the discharge tube assembly are electrically connected to the input and output terminals of the discharge circuit, respectively.

8. A discharge tube assembly according to claim 1, characterized in that, The resistive component (2) includes a resistor and a capacitor connected in series, and a resistive component (2) is connected in parallel on each discharge tube.

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