A multi-element one-group marx generator core and marx generator

Abstract

The application aims to provide a multi-element Marx generator core and a Marx generator, which solve the technical problems of long length of a traditional linear Marx generator core and large volume of a whole structure of the Marx generator. The core assembly of the multi-element Marx generator core comprises one multi-element module or a plurality of multi-element modules connected in sequence; an insulating plate is arranged between two ends of the core assembly and between two adjacent multi-element modules; each multi-element module comprises a fixing plate, a module output and 2N+1 core units, 2N+1 core units form a group, so that the multi-element module is formed, and the multi-element modules are connected in sequence. Compared with the existing linear Marx generator core, the length of the Marx generator core is greatly shortened.

Description

Technical Field

[0001] This invention relates to a pulse power device, specifically to a multi-element Marx generator mechanism and a Marx generator. Background Technology

[0002] As a high-voltage pulse generating device, the Marx generator is widely used in the field of pulse power technology. The most important component of the Marx generator is the Marx generator mechanism, which is usually composed of multiple capacitors and gas switches connected in series alternately.

[0003] Marx generator cores used in high electromagnetic pulse testing devices typically employ a linear arrangement to generate stable and reliable high-voltage pulses. However, existing linearly arranged Marx generators require a longer core to achieve higher voltage levels. This increased core length introduces a series of problems, such as uneven charging and excessive inductance in the discharge circuit.

[0004] In addition, existing Marx generators require sufficient insulation distance between the housing and the core to ensure stable high-voltage pulse output, but this results in a large overall size of the Marx generator, limiting its applicable applications. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-element Marx generator mechanism and a Marx generator, which solves the technical problems of the long length of traditional linear Marx generator mechanisms and the large overall size of Marx generator structures.

[0006] To achieve the above objectives, the technical solution of the present invention is:

[0007] A multi-group Marx generator movement, characterized by including movement components;

[0008] The movement assembly includes one or more multi-element modules connected in series; insulating plates are provided at both ends of the movement assembly and between two adjacent multi-element modules.

[0009] Each multi-element module includes a fixed plate, a module output component, and 2N+1 movement units, where N≥1;

[0010] The fixing plate has a centrally symmetrical structure, with N core units evenly distributed around the center of the fixing plate; adjacent insulating plates and fixing plates are separated by multiple support columns;

[0011] Each mechanism unit includes a gas switch, a first capacitor, and a second capacitor, wherein the first capacitor and the second capacitor are symmetrically mounted on both sides of the fixed plate.

[0012] The gas switch is located on the outer edge of the fixed plate. Its positive end is connected to the positive terminal of the first capacitor through a corresponding capacitor connector, and its negative end is connected to the negative terminal of the second capacitor through a corresponding capacitor connector. The negative terminal of the first capacitor and the positive terminal of the second capacitor are respectively connected to capacitor grounding devices, which are used to realize the series connection of capacitors in the mechanism assembly. The positive terminal of the first capacitor and the negative terminal of the second capacitor are respectively connected to charging resistor connectors, which are used to connect charging resistors.

[0013] The module output component is used to realize the electrical connection between two adjacent multi-element modules.

[0014] Furthermore, the module output component includes a connecting rod and an output assembly disposed at one end of the connecting rod; the output assembly includes a fixed seat, an elastic element, and a cylindrical pin; one end of the fixed seat is connected to the end of the connecting rod, and the other end is provided with a groove; both ends of the elastic element abut against the groove and the cylindrical pin respectively; the cylindrical pin is engaged in the groove;

[0015] In a series of interconnected multi-element modules, the cylindrical pin of the outermost module output is connected to the load, the connecting rod of the outermost module output is grounded, the cylindrical pins of the remaining module outputs abut against the capacitor grounding component of the adjacent next-level multi-element module, and the connecting rods of the remaining module outputs are threadedly connected to the capacitor grounding component of the adjacent previous-level multi-element module.

[0016] Furthermore, the support column is a hollow structure, and its interior is equipped with a fixing rod that passes through all the support columns at the same position to stack and fix all the multi-element group modules.

[0017] Furthermore, the insulating plate has a disc structure, and the gas switches of the 2N+1 core units are located between two corresponding insulating plates, with a gap between the insulating plate and the gas switch.

[0018] Furthermore, the fixing plate is provided with multiple notches that correspond one-to-one with and are adapted to the gas switches.

[0019] Furthermore, the connecting rod, fixing seat, elastic element, cylindrical pin, capacitor grounding element, charging resistor connector, and capacitor connector are made of aluminum, brass, or stainless steel.

[0020] Furthermore, the insulating plate, fixing plate, support column, and fixing rod are made of nylon, fiberglass, or plexiglass.

[0021] The present invention also provides a multi-element Marx generator, including a generator housing, an inner cylinder, a Marx generator mechanism, multiple grounding resistors, multiple charging resistors, and multiple triggering resistors, wherein the Marx generator mechanism is the aforementioned multi-element Marx generator mechanism.

[0022] Furthermore, the generator housing is made of aluminum, brass, or stainless steel; the inner cylinder is made of nylon, fiberglass, or plexiglass.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. Through a reasonable structural design, the present invention uses 2N+1 core units as a group to form a multi-element group module, and then connects the multi-element group modules in series. Compared with the existing linear Marx generator core, the present invention achieves a significant reduction in the length of the generator core while meeting the same voltage output requirements, and improves the stability and reliability of the generated high voltage pulse.

[0025] 2. The multi-unit Marx module of the present invention can be disassembled and replaced as a whole, which facilitates assembly and maintenance, thereby improving work efficiency.

[0026] 3. The Marx generator of the present invention has an inner cylinder inside the generator housing, which realizes solid insulation between the mechanism assembly and the generator housing, so that the diameter of the mechanism assembly can be minimized, thereby greatly reducing the overall volume of the mechanism assembly. Attached Figure Description

[0027] Figure 1 This is a structural cross-sectional view of an embodiment of a multi-group Marx generator according to the present invention.

[0028] Figure 2 This is a schematic diagram of a multi-group Marx generator mechanism embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of the structure of a movement unit in an embodiment of a multi-group Marx generator movement according to the present invention.

[0030] Figure 4 yes Figure 3 The bottom view.

[0031] Figure 5 This is a schematic diagram of the circuit connection between the movement units in an embodiment of a multi-group Marx generator movement according to the present invention.

[0032] Figure 6 This is a schematic diagram of the module output component in an embodiment of a multi-group Marx generator mechanism of the present invention.

[0033] Figure 7 This is a schematic diagram of the capacitor grounding component in an embodiment of a multi-element Marx generator core according to the present invention.

[0034] Figure 8 This is a schematic diagram of the structure of the charging resistor connector in an embodiment of a multi-element Marx generator mechanism according to the present invention.

[0035] Figure 9 This is a schematic diagram of the structure of the fixing plate in an embodiment of a multi-element Marx generator mechanism of the present invention.

[0036] Figure 10 This is a schematic diagram of the structure of the insulating plate in an embodiment of a multi-element Marx generator core according to the present invention.

[0037] The attached figures are labeled as follows:

[0038] 1-Multi-element module, 2-Insulating board, 3-Fixing plate, 4-Module output component, 41-Connecting rod, 42-Fixing base, 421-Groove, 422-Annular boss, 43-Elastic component, 44-Cylindrical pin, 441-Protruding ring, 5-Mechanical unit, 51-Gas switch, 52-First capacitor, 53-Second capacitor, 54-Capacitor grounding component, 55-Charging resistor connector, 6-Support column, 7-Capacitor connector, 8-Fixing rod, 9-Generator housing, 10-Inner cylinder. Detailed Implementation

[0039] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the terms "first" and "second" are used for descriptive purposes only and do not imply their relative importance.

[0040] like Figure 1 As shown, this embodiment provides a ternary Marx generator, which includes a generator housing 9, an inner cylinder 10, multiple grounding resistors, multiple charging resistors, multiple triggering resistors, and a ternary Marx generator core arranged sequentially from the outside to the inside.

[0041] like Figure 2 As shown, the three-element Marx generator core includes a core assembly, which includes three three-element modules connected in series. Insulating plates 2 are provided at both ends of the core assembly and between adjacent three-element modules.

[0042] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8As shown, each ternary module in this embodiment includes a fixed plate 3, a module output component 4, and three core units 5. The fixed plate 3 has a disc structure, and the three core units 5 are evenly distributed around the center of the fixed plate 3, with an included angle of 120 degrees between adjacent core units 5. Adjacent insulating plates 2 and the fixed plate 3 are separated by three support columns 6. The support columns 6 are hollow structures, and inside them are fixed rods 8 that pass through all the support columns 6 at the same location to stack and fix the three ternary modules 1. The inner diameter of the support column 6 is 1-2 mm larger than the outer diameter of the fixed rod 8, and its outer diameter is more than 10 mm larger than the outer diameter of the fixed rod 8. The diameter of the through holes on the insulating plate 2 and the fixed plate 3 for mounting the fixed rods 8 is only about 1 mm larger than the outer diameter of the fixed rod 8.

[0043] Each mechanism unit 5 includes a gas switch 51, a first capacitor 52, and a second capacitor 53. That is, a ternary module has six capacitors (three first capacitors 52 and three second capacitors 53). Each first capacitor 52 and its corresponding second capacitor 53 are symmetrically mounted in pairs on both sides of the corresponding fixing plate 3. Specifically, the first capacitors 52 and 53 can be secured by cable ties passing through the corresponding through holes on the fixing plate 3, or by using an external fixing cover to fix the first capacitors 52 and 53 together with the corresponding through holes on the fixing plate 3. Each first capacitor 52 and second capacitor 53 can be numbered, i.e., A1 and A2, B1 and B2, C1 and C2, arranged symmetrically in pairs. A gas switch 51 is installed between each pair of capacitors.

[0044] Gas switch 51 is located on the outer edge of fixed plate 3. Its positive end is connected to the positive terminal of the corresponding first capacitor 52 through a corresponding capacitor connector 7, and its negative end is connected to the negative terminal of the corresponding second capacitor 53 through a corresponding capacitor connector 7. The negative terminal of the first capacitor 52 and the positive terminal of the second capacitor 53 are respectively connected to capacitor grounding components 54, which are used to realize the series connection of capacitors in the mechanism assembly. The positive terminal of the first capacitor 52 and the negative terminal of the second capacitor 53 are respectively connected to charging resistor connectors 55, which are used to connect charging resistors. The two capacitor grounding components 54 in the same mechanism unit 5 are connected by grounding resistors. The capacitor grounding components 5 of the three mechanism units 5 located in the same ternary module are connected together in series by metal wires in the order A1-B1, B2-C2. Similarly, the charging resistor connectors 55 of the three mechanism units 5 located in the same ternary module are connected together in series by charging resistors in the order A1-B2-C1, A2-B1-C2.

[0045] like Figure 6As shown, the module output component 4 is used to realize the electrical connection of three adjacent ternary modules 1. Specifically, the module output component 4 includes a connecting rod 41 and an output assembly disposed at one end of the connecting rod 41. The output assembly includes a fixing seat 42, an elastic element 43, and a cylindrical pin 44. One end of the fixing seat 42 is threadedly connected to the end of the connecting rod 41, and the other end is provided with a groove 421. The two ends of the elastic element 43 abut against the groove 421 and the cylindrical pin 44, respectively.

[0046] The cylindrical pin 44 is engaged in the groove 421. Specifically, a convex ring 451 is provided on the outer circumference of the cylindrical pin 44, and an annular boss 422 is provided on the groove wall of the groove 421 at the end of the fixed seat 42 away from the connecting rod 41 to engage with the convex ring 441. This prevents the cylindrical pin 44 from disengaging from the fixed seat 42, allowing the cylindrical pin 44 to extend and retract relative to the fixed seat 42 under the action of the spring member 43. The outer end of the cylindrical pin 44 at one end of the module output member 4 is connected to the capacitor grounding member 54 corresponding to the adjacent downstream ternary group module, and the other end is threadedly connected to the capacitor grounding member 54 corresponding to the adjacent downstream multi-element group module through the connecting rod 41. That is, it abuts against A2 in the upstream and adjacent core unit 5 from C1 in the lower core unit 5, thereby realizing electrical connection. The module output component 4 in the uppermost ternary module has its cylindrical pin 44 connected to the load at its outer end for outputting high-voltage pulses; the module output component 4 in the lowermost ternary module has its connecting rod 41 connected to ground at the other end. The length of the connecting rod 41 of the module output components 4 in the uppermost and lowermost ternary modules can be set according to actual conditions.

[0047] like Figure 9 As shown, the fixing plate 3 has multiple notches that correspond one-to-one with and are adapted to the gas switch 51, for installing the gas switch 51.

[0048] like Figure 10 As shown, the insulating plate 2 has a disc structure. The gas switches 51 corresponding to the three core units are located between the corresponding two insulating plates 2. The maximum diameter of the insulating plate 2 is greater than the maximum outer diameter of the fixed plate 3 plus the diameter of the gas switch 51, ensuring that its edge covers the entire core unit 5, so that the gas switches 51 between two adjacent core units 5 are separated by the insulating plate 2.

[0049] The maximum thickness of the gas switch 51, and the sum of the thicknesses of the corresponding first capacitor 52 and second capacitor 53, determines the maximum thickness of a single mechanism unit 5. The height of the support column 6 between adjacent insulating plates 2 and fixing plates 3 must ensure that the insulating plate 2 does not contact the first capacitor 52, the second capacitor 53, or the gas switch 51.

[0050] In this embodiment, the connecting rod 41, fixing seat 42, elastic element 43, cylindrical pin 44, capacitor grounding element 54, charging resistor connector 55, capacitor connector 7, and generator housing 9 are made of aluminum, brass, or stainless steel. The insulating plate 2, fixing plate 3, support column 6, fixing rod 8, and inner cylinder 10 are made of nylon, fiberglass, or plexiglass.

[0051] This invention, through a rational structural design, assembles every three stages of the linear movement into a circular module, and then connects these modules in series. Each module contains three components, and its thickness is only that of a single component, effectively shortening the movement length. The number of movement units 5 can be increased by enlarging the diameters of the fixing plate 3, insulating plate 2, inner cylinder 10, and generator housing 9; they can be grouped into sets of five, seven, or any odd number of units.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention 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; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present invention.

Claims

1. A multi-element Marx generator mechanism, characterized in that: Includes a movement assembly; the movement assembly includes one multi-element group module (1) or multiple multi-element group modules (1) connected in series; insulating plates (2) are provided at both ends of the movement assembly and between two adjacent multi-element group modules (1); Each multi-element module (1) includes a fixed plate (3), a module output component (4), and 2N+1 movement units (5), where N≥1; The fixing plate (3) has a centrally symmetrical structure, and N core units (5) are evenly distributed on the fixing plate (3) around the center of the fixing plate (3); adjacent insulating plates (2) and fixing plates (3) are separated by multiple support columns (6); the support column (6) has a hollow structure, and its interior is provided with a fixing rod (8) that passes through all the support columns (6) at the same position to stack and fix all the multi-element group modules (1). Each mechanism unit (5) includes a gas switch (51), a first capacitor (52) and a second capacitor (53), wherein the first capacitor (52) and the second capacitor (53) are symmetrically mounted on both sides of the fixing plate (3); The gas switch (51) is located on the outer edge of the fixed plate (3). Its positive end is connected to the positive terminal of the first capacitor (52) through a corresponding capacitor connector (7), and its negative end is connected to the negative terminal of the second capacitor (53) through a corresponding capacitor connector (7). The negative terminal of the first capacitor (52) and the positive terminal of the second capacitor (53) are respectively connected to a capacitor grounding component (54), which is used to realize the series connection of capacitors in the mechanism assembly. The positive terminal of the first capacitor (52) and the negative terminal of the second capacitor (53) are respectively connected to a charging resistor connector (55), which is used to connect a charging resistor. The insulating plate (2) is a disc structure. The gas switches (51) of the 2N+1 core units (5) are located between the corresponding two insulating plates (2), and there is a gap between the insulating plate (2) and the gas switches (51). The module output component (4) is used to realize the electrical connection between two adjacent multi-element group modules (1); the module output component (4) includes a connecting rod (41) and an output component disposed at one end of the connecting rod (41); the output component includes a fixed seat (42), an elastic element (43) and a cylindrical pin (44); one end of the fixed seat (42) is connected to the end of the connecting rod (41), and the other end is provided with a groove (421); both ends of the elastic element (43) abut against the groove (421) and the cylindrical pin (44) respectively; the cylindrical pin (44) is engaged in the groove. (421) In the multiple series-connected multi-element group modules (1), the cylindrical pin (44) of one of the outermost module output components (4) is connected to the load, the connecting rod (41) of the other outermost module output component (4) is grounded, the cylindrical pin (44) of the remaining module output components (4) abuts against the capacitor grounding component (54) corresponding to the adjacent next-level multi-element group module (1), and the connecting rod (41) of the remaining module output components (4) is threadedly connected to the capacitor grounding component (54) corresponding to the adjacent previous-level multi-element group module (1).

2. The multi-element Marx generator mechanism according to claim 1, characterized in that: The fixing plate (3) has multiple notches that correspond one-to-one with and are adapted to the gas switch (51).

3. The multi-element Marx generator mechanism according to claim 1, characterized in that: The connecting rod (41), fixing seat (42), elastic element (43), cylindrical pin (44), capacitor grounding element (54), charging resistor connector (55), and capacitor connector (7) are made of aluminum, brass, or stainless steel.

4. The multi-element Marx generator mechanism according to claim 1, characterized in that: The insulating plate (2), fixing plate (3), support column (6), and fixing rod (8) are made of nylon, fiberglass, or plexiglass.

5. A multi-element Marx generator, comprising a generator housing (9), an inner cylinder (10), a Marx generator core, multiple grounding resistors, multiple charging resistors, and multiple triggering resistors, characterized in that: The Marx generator mechanism is a multi-group Marx generator mechanism as described in any one of claims 1-4.

6. The multi-element Marx generator according to claim 5, characterized in that: The generator housing (9) is made of aluminum, brass, or stainless steel. The inner cylinder (10) is made of nylon, fiberglass or plexiglass.

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