Lightweight compact high-voltage pulse generator

Abstract

The application discloses a light and small heavy-frequency high-voltage pulse generator in the technical field of high-voltage pulse, which comprises an insulating support, a row switch, an independent switch, an energy storage unit, an isolation inductor and a shell structure, a plurality of switch electrode heads are symmetrically installed on the inner wall of the insulating support, and the row switch is formed by a plurality of self-breakdown switches; the insulating support is made of an insulating material and can be used as the framework structure of the high-voltage pulse generator, thereby being beneficial to maintaining the stability and reliability of the internal physical structure of the high-voltage pulse generator. The insulating support with a flat and multi-wing structure is integrally designed with the gas switch structure, and the energy storage unit and the isolation inductor are fixedly connected, so that the problems of low switch overvoltage coefficient, long axial structure and limited light and small degree of the high-voltage pulse generator can be avoided, and the application demand of portability and high reliability can be met.

Description

Technical Field

[0001] This invention relates to the field of pulsed high voltage technology, specifically to a lightweight, miniature high-repetition-rate high-voltage pulse generator. Background Technology

[0002] High-voltage pulse generators typically possess high impedance characteristics, generating peak values ​​of tens to hundreds of kilovolts and pulse widths in the sub-nanosecond to microsecond range. They are used to drive high-impedance loads, such as trigger sources for high-voltage gas switches, drivers for ultra-wideband radiation sources, and drivers for pulsed X-ray machines. The output voltage of the trigger source is usually tens of kilovolts, often generated by direct discharge of a pulsed electrical appliance, or by using a pulse transformer to generate a high voltage followed by a sharpening capacitor to produce a fast-leading pulse. When ultra-wideband drivers are involved, it is necessary to generate high-voltage pulses with nanosecond or sub-nanosecond pulse leading edges. Typically, a pre-stage pulse forming unit generates a high voltage, which is then sharpened by a high-pressure hydrogen switch to output the pulse leading edge. Hundred-kilovolt pulsed X-ray machine drivers typically employ technologies such as Marx generators or pulse transformers, achieving miniaturization through compact design to meet the needs of mobile applications.

[0003] Existing lightweight high-voltage pulse generators typically use ceramic capacitors for energy storage. One or more ceramic capacitors are connected in parallel as the first stage of the Marx generator. All gas switches are arranged in a row, relying on the ultraviolet light generated by the conduction of the preceding switch to pre-ionize the next stage gas switch, thereby accelerating the Marx voltage build-up process. Its circuit characteristics are that each stage of ceramic capacitors is sequentially charged and discharged in parallel through a set of inductors or resistors of the same size. Structurally, each stage of ceramic capacitors and switches is arranged sequentially along the axial direction. For example, the fast-front-edge compact X-ray machine publicly reported in 2014 uses a 15-stage unipolar coaxial Marx generator technology. Each Marx stage consists of a ceramic capacitor with a rated voltage of 40kV and a capacitance of 7.5nF, using a 1MΩ solid resistor as an isolation element. On a 75Ω load, the output voltage reaches 360kV, with a pulse leading edge of 10ns and a pulse width of 40ns (Development of a Fast-Front-Edge Compact X-ray Machine, High Power Laser and Ion Beams, 2014).

[0004] The coaxial Marx generator uses isolation elements with the same parameters for sequential isolation. After the front-stage switch is turned on, the voltage of the subsequent stages of switches is almost evenly distributed, and the overvoltage coefficient is low. This results in a long Marx voltage settling time, large jitter in the high-voltage pulse output time, and even instability, which seriously affects the normal use of the high-voltage pulse generator. Secondly, the capacitors and switches of the existing Marx generator are arranged sequentially along the axial direction, resulting in a long axial structure of the generator, which limits its application scenarios. In addition, there is considerable room for optimization in the size and weight of the existing Marx generator. Summary of the Invention

[0005] The purpose of this invention is to provide a lightweight, compact high-repetition-rate high-voltage pulse generator that avoids the problems of low switching overvoltage coefficient, long axial structure, and limited miniaturization of high-voltage pulse generators, and can meet the requirements of portable and highly reliable applications.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A lightweight, high-repetition-rate high-voltage pulse generator includes an insulating support, a series of switches, an independent switch, an energy storage unit, an isolation inductor, and a housing structure. Multiple switch electrode heads are symmetrically installed on both sides of the inner wall of the insulating support to form a series of switches composed of multiple self-breakdown switches. The insulating support is made of insulating material and can serve as the skeleton structure of the high-voltage pulse generator, which helps to maintain the stability and reliability of the physical structure of the high-voltage pulse generator.

[0008] The independent switch has two switch electrode heads symmetrically installed on both sides inside the insulating shell of the independent switch, forming an independent self-breakdown switch;

[0009] The energy storage unit is connected to the row of switches, the independent switch and the isolation inductor to form a charging circuit and a discharging circuit. The energy storage unit is used to store electrical energy provided by an external power source and to quickly release the stored electrical energy when the switch is turned on.

[0010] The isolation inductor is connected between the energy storage units. The isolation inductor isolates the energy storage units, which, together with the linked switches and independent switches, form a folded Marx main discharge circuit. The Marx main discharge circuit includes multiple stages of discharge units, each consisting of an energy storage unit (capacitor) and a switch. All energy storage units are charged in parallel through the isolation inductor, discharging in mutual isolation. The discharge units at each stage are connected sequentially to form a series discharge circuit, generating a pulsed high voltage. By partially isolating the energy storage units across stages using the isolation inductor, the overvoltage coefficient of the switch is improved, facilitating rapid conduction of the Marx main discharge circuit and making the output of the high-voltage pulse generator more stable.

[0011] The insulating bracket is snapped onto the inner wall of the outer shell structure, which is filled with gas. By using gas insulation, it is possible to output a voltage of several hundred kilovolts, which is beneficial for the miniaturization of high-voltage pulse generators.

[0012] As a further aspect of the present invention: the insulating bracket is a symmetrical flat bracket, and several through holes are provided on the side of the insulating bracket, and multiple side wings perpendicular to the arrangement direction of the through holes are formed between adjacent through holes. The several through holes can serve as heat dissipation channels for the insulating bracket, which can enhance the gas circulation inside the insulating bracket, and the through holes can provide installation space for the connection between the switch structure and the insulating bracket, which is beneficial to ensuring the normal operation of the switch structure.

[0013] As a further aspect of the present invention: two switch electrode heads are symmetrically installed on the upper and lower sides of the inner wall of each through-hole of the insulating bracket through electrode head connectors, and after all the through-holes are installed with switch electrode heads, a row of switches is formed that are integrated with the insulating bracket.

[0014] As a further aspect of the present invention: there are 2n energy storage units, and the energy storage units are ceramic capacitors. All ceramic capacitors are divided into two groups. The first group consists of the 1st, 4th, 5th, 8th, 9th... and is located at the top of the insulating support. The second group consists of the 2nd, 3rd, 6th, 7th, 10th... and is located at the bottom of the insulating support. When the ceramic capacitors from the 1st to the 2nth are connected in series and discharged, they present an n-layer folded discharge path that moves up and down along the insulating support.

[0015] As a further aspect of the present invention: the two sides of the inner side of the insulating shell of the independent switch are symmetrically connected to two switch electrode heads through electrode head connectors to form an independent self-breakdown switch. The upper end of the first group of ceramic capacitors and the lower end of the second group of ceramic capacitors are respectively connected to switch connecting pieces. An independent switch is connected between two adjacent ceramic capacitors through switch connecting pieces.

[0016] As a further aspect of the present invention: the isolation inductor includes group A, group B, group C, and group D inductors, which are symmetrically distributed on both sides of the ceramic capacitor. Each group of inductors includes several inductors, and each group of inductors is composed of multiple long and short inductors connected alternately. The long inductors are energy storage units with a 3-level isolation difference, and the short inductors are energy storage units with adjacent isolation levels. Both the long and short inductors are high-voltage isolation inductors, and the contact portion of the long and short inductors is connected to an inductor connecting piece. The inductor connecting piece is divided into two groups. One group of inductor connecting pieces is pressed between the ceramic capacitor and the electrode head connector of the row switch, and the other group of inductor connecting pieces is connected between the ceramic capacitor and the switch connecting piece of the independent switch.

[0017] As a further aspect of the present invention: the high-voltage pulse generator further includes a trigger connection piece, an output connection piece, and an output electrode. The trigger connection piece is connected through the high-voltage end of the first-stage ceramic capacitor, and the output connection piece is connected through the ground end of the last-stage ceramic capacitor, for guiding the output voltage to the axis of the high-voltage pulse generator. The output electrode is installed at the center of the insulating cover plate at the output end of the high-voltage pulse generator by means of a nut, opposite to the lower end of the output connection piece and maintaining a certain distance as the output sharpening switch gap.

[0018] As a further embodiment of the present invention: the outer shell structure includes a guide rail, a metal outer cylinder, a cover plate, and an insulating cover plate. The guide rail is symmetrically welded to both sides of the inner wall of the metal outer cylinder. The insulating support enters the metal outer cylinder through the guide rail and is fixed thereto, which can meet the application requirements of convenient installation and reliable fixation. The cover plate and the insulating cover plate are fixed to the openings at both ends of the metal outer cylinder. A limit plate is fixed to one side of the cover plate. The limit plate is used to limit the insulating support. The metal outer cylinder, the cover plate, and the insulating cover plate are connected to form a closed cavity.

[0019] As a further embodiment of the present invention: one end of the A group inductor is connected to a first charging cable, and the other end of the charging cable passes through the first insulating base; one end of the B group inductor is connected to a second charging cable, and the other end of the second charging cable passes through the second insulating base; one end of the C group inductor is connected to a grounding inductor through a wire; and one section of the D group inductor is electrically connected to the cover plate through a spring.

[0020] As a further aspect of the present invention: a plurality of air nozzles are connected through one side of the cover plate, a spring is connected to the other side of the cover plate, and a triggering component is installed through the cover plate. The triggering component is spaced a certain distance from the triggering connecting piece to form a triggering switch gap.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. In this invention, by setting up an insulating bracket with a flat multi-wing structure that is integrated with the gas switch structure and fixing the energy storage unit and the isolation inductor, the problems of low switching overvoltage coefficient, long axial structure and limited miniaturization of high voltage pulse generator can be avoided. By adopting the method of fixing the insulating bracket with guide rails entering the metal outer cylinder, the application requirements of convenient installation and reliable fixation can be met.

[0023] 2. In this invention, by dividing all ceramic capacitors into two groups and using two types of inductors for cross-stage isolation, the requirements for parallel charging and cross-stage isolation discharge of ceramic capacitors are met. This effectively improves the overvoltage coefficient of the remaining switches after the first-stage switch is triggered and turned on, thereby achieving the reliability and stability of the high-voltage pulse generator's repetitive operation.

[0024] 3. In this invention, by adopting a multi-wing structure insulating bracket, half of the switches are integrated with the insulating bracket, while the remaining switches are distributed vertically. At the same time, two sets of ceramic capacitors are respectively arranged above and below the insulating bracket. The Marx main discharge circuit forms a folded structure Marx generator circuit, which reduces the axial length and eliminates the need for the insulating inner cylinder, greatly improving the miniaturization of the device.

[0025] 4. In this invention, the high-voltage pulse generator is internally gas-insulated with a relative air pressure of 1 atmosphere, which meets the structural requirements of small size and light weight. At the same time, it is convenient to use and maintain, and its operation is stable and reliable. It can be used as a pulse drive source for portable pulse X-ray machines, while also meeting the requirements of high pulse voltage and miniaturization.

[0026] 5. In this invention, the high-voltage pulse generator circuit and structure are ingeniously designed, highly miniaturized, and have strong expandability of circuit parameters such as capacitor number, making it suitable for the development of lightweight and miniaturized high-voltage pulse drive sources for various applications. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of the integrated insulating support and switch structure of the present invention;

[0028] Figure 2 This is a diagram showing the connection relationship between the independent switch, the switch connecting piece, and the ceramic capacitor of the present invention.

[0029] Figure 3 This is a diagram showing the connection relationship between the insulating support and the ceramic capacitor and inductor connecting pieces of the present invention;

[0030] Figure 4 This is a diagram showing the connection relationship between the inductor, the inductor connector, and the ceramic capacitor of the present invention.

[0031] Figure 5 This is a diagram showing the connection relationship between the four sets of inductors, the charging cable, and the cover plate of the present invention.

[0032] Figure 6 This is a diagram showing the connection relationship between the insulating support and the metal outer cylinder of the present invention;

[0033] Figure 7 This describes the connection relationship between the trigger component and the cover plate in this invention;

[0034] Figure 8 This is a diagram showing the connection relationship between the output terminal, the insulating cover plate, and the output electrode of the present invention.

[0035] Figure 9 This is the circuit diagram of the Marx main discharge circuit of the present invention.

[0036] Figure 10 The diagram shows the waveform of the high-repetition-rate pulse voltage generated in the X-ray tube driving experiment according to an embodiment of the present invention.

[0037] In the diagram: 1. Switch electrode head; 2. Electrode head connector; 3. Insulating bracket; 4. Inductor connecting piece; 5. Energy storage unit; 6. Switch connecting piece; 7. Independent switch; 8. Long inductor; 9. Short inductor; 10. Trigger connecting piece; 11. Output connecting piece; 12. Guide rail; 13. Metal outer cylinder; 14. Limit plate; 15. Group A inductor; 16. Group B inductor; 17. Insulating base; 18. Charging cable; 19. Group C inductor; 20. Wire; 21. Cover plate; 22. Inductor; 23. Group D inductor; 24. Spring; 25. Trigger assembly; 26. Air nozzle; 27. Insulating cover plate; 28. Output electrode; 29. ​​Nut. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example:

[0040] Please see Figures 1-10 A lightweight, compact high-repetition-rate high-voltage pulse generator is provided, comprising an insulating bracket 3, a row of switches, an independent switch 7, an energy storage unit 5, an isolation inductor, and a housing structure. Multiple electrode structures of the row of switches are symmetrically installed on both sides of the inner wall of the insulating bracket 3. All the switch structures are used to conduct current. The insulating bracket 3 is made of insulating material and can serve as the skeleton structure of the high-voltage pulse generator, which is beneficial to maintaining the stability and reliability of the physical structure of the high-voltage pulse generator.

[0041] The energy storage unit 5 is divided into two groups. The first group is located on the top of the insulating support 3 and is connected to the upper electrode head connector of the switch. The second group is located at the bottom of the insulating support 3 and is connected to the lower electrode head connector of the switch. The energy storage unit 5 is used to store electrical energy.

[0042] Two switch electrode heads 1 are symmetrically connected to the two sides of the insulating shell of the independent switch 7 to form an independent self-breakdown switch. The upper end of the first energy storage unit and the lower end of the second energy storage unit are respectively connected to switch connecting pieces 6. An independent switch 7 is connected between two adjacent ceramic capacitors through the switch connecting pieces 6.

[0043] Isolation inductors are connected between energy storage units 5. Energy storage units 5, together with the linked switches and independent switches 7, form a folded Marx main discharge circuit. The Marx main discharge circuit includes multiple discharge units, each consisting of one energy storage unit 5 and one switch. All energy storage units 5 are charged in parallel through the isolation inductors, discharging in isolation from each other. Each discharge unit is connected sequentially to form a series discharge circuit. There are two specifications of isolation inductors: one isolates energy storage units 5 with a difference of 3 stages, and the other isolates energy storage units 5 with adjacent stages. By grouping and isolating energy storage units 5, the overvoltage coefficient of the remaining switches after the first-stage switch is triggered and turned on can be improved, thereby increasing the operating voltage range of the switches and enabling reliable repetition frequency operation and stable output of the high-voltage pulse generator.

[0044] The insulating bracket 3 is snapped onto the inner wall of the outer shell structure. The interior of the outer shell structure is filled with gas. By using gas insulation, it is possible to output a voltage of several hundred kilovolts, which is beneficial for the miniaturization of high-voltage pulse generators.

[0045] Preferred, such as Figure 1 The figure shown is a cross-sectional view of the integrated structure of the insulating bracket and the switch structure of the present invention. The insulating bracket 3 is a symmetrical flat bracket. Several through holes are provided on the side of the insulating bracket 3, and multiple side wings perpendicular to the arrangement direction of the through holes are formed between adjacent through holes. The through holes can serve as heat dissipation channels for the insulating bracket 3, which can enhance the gas flow inside the insulating bracket 3. The through holes can also provide installation space for the connection between the switch structure and the insulating bracket 3, which is beneficial to ensuring the normal operation of the switch structure.

[0046] Preferred, such as Figure 1 The diagram shows a cross-sectional view of the integrated insulating support and switch structure of the present invention. The switch structure includes a switch electrode head 1 and an electrode head connector 2 connected to the top of the switch electrode head 1. The switch electrode head 1 includes a first set of switch electrode heads and a second set of switch electrode heads. The first set of switch electrode heads is symmetrically integrated into the interior of the insulating support 3 through corresponding through-holes to form a row of switches, which can effectively conduct the current from the top and bottom of the insulating support 3 to the energy storage unit 5. The second set of switch electrode heads is mounted on the energy storage unit 5 through the electrode head connector 2. Figure 2 In the housing of the plurality of independent switches 7 shown, each independent switch 7 constitutes a self-breakdown gas switch.

[0047] Preferred, such as Figure 3The diagram shows the connection relationship between the insulating support, ceramic capacitors, and inductor connecting pieces of the present invention. There are 12 energy storage units 5, and each energy storage unit 5 is a ceramic capacitor. All ceramic capacitors are divided into two groups. The first group consists of the 1st, 4th, 5th, 8th, 9th, and 12th stages, located at the top of the insulating support 3. The second group consists of the 2nd, 3rd, 6th, 7th, 10th, and 11th stages, located at the bottom of the insulating support 3. When the ceramic capacitors from the 1st to the 12th stages are discharged in series, they form an n-layer folded discharge path that moves up and down along the insulating support 3. The inductor connecting pieces 4 are divided into two groups. One end of the first group of inductor connecting pieces 4 is connected to the upper end of the first group of ceramic capacitors and the lower end of the second group of ceramic capacitors, respectively. One end of the second group of inductor connecting pieces 4 is pressed between the first group of ceramic capacitors, the second group of ceramic capacitors, and the connecting piece 2 of the switch electrode head.

[0048] Preferred, such as Figure 4 This diagram illustrates the connection relationships between the inductors, inductor connectors, and ceramic capacitors of the present invention. Each group of inductors in groups A, B, C, and D consists of alternating long inductors 8 and short inductors 9. The long inductors 8 are used to isolate ceramic capacitors with a three-stage difference in the number of stages, while the short inductors 9 are used to isolate ceramic capacitors with adjacent stages. One end of the long inductor 8 in group A is connected to one end of an inductor connector 4, the other end of which is connected to the upper end of the first-stage ceramic capacitor. The other end of the long inductor 8 is connected to the short inductor 9. One end of another inductor connecting piece 4 is connected between the short inductor 9 and another long inductor 8. The other end of the inductor connecting piece 4 is pressed between the fourth-stage ceramic capacitor and the upper electrode connector of the switch. Another inductor connecting piece 4 is connected between the other end of the short inductor 9 and another long inductor 8. The other end of the inductor connecting piece 4 is connected to the top of the fifth-stage ceramic capacitor. This process is repeated to complete the connection of the inductor 15 in group A with the inductor connecting piece 4 and the first group of ceramic capacitors. Each group of inductors in groups B, C, and D is connected in the same way. Figure 4 The connection relationships are as follows: inductor connector 4 and corresponding ceramic capacitors are connected. After the connection is completed, the first group of ceramic capacitors is charged in parallel through inductors A 15 and C 19; the second group of ceramic capacitors is charged in parallel through inductors B 16 and D 23. The high-voltage pulse generator also includes a trigger connector 10 and an output connector 11. The trigger connector 10 is connected through to the high-voltage terminal of the first-stage ceramic capacitor, and the output connector is connected through to the ground terminal of the last-stage ceramic capacitor.

[0049] Preferred, such as Figure 5The diagram shows the connection relationship between the four groups of inductors, charging cables, and cover plates of the present invention. One end of the inductor 15 in group A is connected to the first charging cable 18, and the other end of the charging cable 18 passes through the first insulating base 17. One end of the inductor 16 in group B is connected to the second charging cable 18, and the other end of the second charging cable 18 passes through the second insulating base 17. One end of the inductor 19 in group C is connected to a wire 20, one end of the wire 20 is connected to an inductor 22, and the other end of the inductor 22 is connected to the cover plate 21. The inductor 23 in group D is electrically connected to the cover plate 21 through a spring 24. The inductors 15 and 19 in group A, 16 and 23 in group B are symmetrically distributed on both sides of the ceramic capacitor, and each group of inductors consists of multiple inductors.

[0050] Preferred, such as Figure 2 The diagram shows the connection relationship between the independent switch, the switch connecting piece 6, and the ceramic capacitor of the present invention. The upper end of the first group of energy storage units and the lower end of the second group of energy storage units are respectively connected to the switch connecting piece 6. Two adjacent switch connecting pieces 6 are connected to the electrode head connector 2 on the independent switch 7. The independent switch 7 is used to connect adjacent energy storage units 5 in series after being turned on.

[0051] Preferred, such as Figure 6 The diagram shows the connection relationship between the insulating bracket and the metal outer cylinder of the present invention. The outer shell structure includes a guide rail 12, a metal outer cylinder 13 and a cover plate 21. The guide rail 12 is symmetrically welded to both sides of the inner wall of the metal outer cylinder 13. The method of entering the metal outer cylinder 13 through the guide rail 12 and fixing it thereto can meet the application requirements of convenient installation and reliable fixation.

[0052] Preferred, such as Figure 3 , Figure 7 The diagram shows the connection relationship between the four groups of inductors, the charging cable, and the cover plate of the present invention. Two air nozzles 26 are connected through the outer side of the cover plate 21. A spring 24 is fixedly connected to one side of the cover plate 21. The D group inductor 23 is connected to the cover plate 21 through the spring 24.

[0053] Preferred, such as Figure 7 The diagram shows the connection relationship between the trigger component and the cover plate of the present invention. The trigger component 25 is installed through the cover plate 21. The trigger component 25 is spaced a certain distance (typically 5mm) from the trigger connecting piece 10 as the trigger switch gap.

[0054] Preferred, such as Figure 8The diagram shows the connection relationship between the output end, the insulating cover plate, and the output electrode of the present invention. The outer shell structure also includes an insulating cover plate 27. The screw end of the output electrode 28 is installed at the center of the insulating cover plate 27 through a nut 29. Its ball end and the output connecting piece 11 maintain a certain distance (typical value 5mm-10mm) as the output sharpening switch gap. The cover plate 21 and the insulating cover plate 27 are fixed on the metal flanges on the two openings of the metal outer cylinder 13. A limit plate 14 is fixed on one side of the cover plate 21. The limit plate 14 is used to limit the two ends of the insulating bracket 3. The metal outer cylinder 13, the cover plate 21, and the insulating cover plate 27 are connected to form a closed cavity. The interface form of the output end flange of the metal outer cylinder 13, the insulating cover plate 27, and the output electrode 28 can be designed according to the specific structure of the load.

[0055] like Figure 9 The diagram shown is a Marx main discharge circuit diagram in an embodiment of the present invention. The upper end of the first-stage ceramic capacitor C_1 is connected to the high-voltage terminal of the trigger switch S_tr; the lower end of the first-stage ceramic capacitor C_1 is connected to the upper end of the second-stage ceramic capacitor C_2 through a self-breakdown switch S_L; the lower end of the second-stage ceramic capacitor C_2 is connected to the lower end of the third-stage ceramic capacitor C_3 through a self-breakdown switch S_d; the upper end of the third-stage ceramic capacitor C_3 is connected to the lower end of the fourth-stage ceramic capacitor C_4 through a self-breakdown switch S_L; and so on, with the upper end of the last-stage ceramic capacitor C_n connected to the load through a self-breakdown switch S_d.

[0056] In this embodiment, a high-voltage pulse generator with 12 levels is set. Its external dimensions are 18cm×18cm×32cm, its volume is 10L, and its mass is 6kg. In the X-ray tube load experiment, it achieved a peak voltage of 350kV, a pulse leading edge of less than 10ns, and a pulse half-width of more than 80ns. It can work stably for more than 10 seconds with a repetition rate of 20Hz.

[0057] like Figure 10 The diagram shows the repetition rate pulse voltage waveform generated in the X-ray tube driving experiment according to an embodiment of the present invention. This high-voltage pulse generator has been experimentally verified as a driving source for pulse X-ray machines. Compared with traditional pulse generators that are also driving sources for X-ray machines and have similar output voltages, it can effectively reduce the size of the high-voltage pulse generator and greatly improve the miniaturization level of the pulse X-ray machine driving source.

[0058] The high-voltage pulse generator designed in this invention uses gas insulation with a relative pressure of about 1 atmosphere. It is small in size, light in weight, easy to use and maintain, and stable and reliable in operation. It can simultaneously meet the requirements of high-voltage pulses and miniaturization.

[0059] On the other hand, the high-voltage pulse generator has a clever circuit and structural design, a high degree of miniaturization, and strong expandability of circuit parameters such as capacitor number, and can be used to develop miniaturized high-voltage pulse drive sources with different output voltages.

[0060] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A light, small, heavy, frequency, high-voltage pulse generator, characterized by, The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator.

2. The compact high-voltage pulse generator of claim 1, characterized in that: The application relates to a high-voltage pulse generator.

3. The compact high-voltage pulse generator of claim 2, characterized in that: The application relates to a high-voltage pulse generator.

4. The compact high-voltage pulse generator of claim 3, characterized in that: The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. 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The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application relates to a high-voltage pulse generator. The application 5. The compact high-voltage pulse generator of claim 4, characterized in that: The shell structure comprises a guide rail, a metal outer cylinder, a cover plate and an insulating cover plate, the guide rail is symmetrically welded on two sides of the inner wall of the metal outer cylinder, the insulating support enters the metal outer cylinder through the guide rail and is fixed with the metal outer cylinder, so that the application requirements of convenient installation and reliable fixation can be met; the cover plate and the insulating cover plate are fixed on the two end openings of the metal outer cylinder, and the metal outer cylinder is connected with the cover plate and the insulating cover plate to form a closed cavity.

6. The compact high-voltage pulse generator of claim 5, characterized in that: One end of the A group inductor is connected with a first charging cable, the other end of the charging cable passes through a first insulating seat; one end of the B group inductor is connected with a second charging cable, the other end of the second charging cable passes through a second insulating seat; one end of the C group inductor is connected with a ground inductor through a wire; one end of the D group inductor is electrically connected with the cover plate through a spring.

7. The compact high-voltage pulse generator according to claim 6, characterized in that: A plurality of air nozzles are connected on one side of the cover plate in a penetrating mode, a spring is connected on the other side of the cover plate, a trigger assembly is installed in the cover plate in a penetrating mode, the trigger assembly is spaced apart from a trigger connecting piece by a certain size, and a trigger switch gap is formed.

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