Multi-pulse discharging device

Abstract

The utility model provides a multi-pulse discharging device. The multi-pulse discharging device comprises a power supply module, a charging control module, a discharging control module, a plurality of energy storage modules and a control module. The charging control module is connected between the power supply module and each energy storage module and is used for connecting or disconnecting each energy storage module and the power supply module under the control of the control module; the discharge control module is used for connecting or disconnecting the first discharge end and the second discharge end under the control of the control module; the energy storage module comprises an energy storage capacitor and a switch unit, and the switch unit is switched on or switched off under the control of the control module; the control module controls the charging condition of each energy storage module by controlling the switch unit of each energy storage module after controlling the conduction of the charging control module, and controls the discharging interval of each energy storage module by controlling the switch unit of each energy storage module after controlling the conduction of the discharging control module. The device can flexibly simulate multi-pulse thunder and lightning, and has strong portability.

Description

Technical Field

[0001] The present application relates to the technical field of lightning protection testing, and in particular to a multi-pulse discharge device. Background Art

[0002] A pulse discharge device is a device that generates high voltage and high current. It is used to simulate the overvoltage and overcurrent generated by the lightning current discharge process. The pulse current amplitude can reach tens to hundreds of kiloamperes. It is used to test the main characteristics of the arrester, such as the residual voltage, nominal discharge current, power frequency withstand capability, and related parameters of the lightning monitoring equipment. General pulse discharge devices are often single-pulse discharge devices, while real lightning strikes have multi-pulse discharge characteristics, resulting in poor testing results for single-pulse discharge devices. Traditional multi-pulse discharge devices generally use multi-stage Max circuits to achieve high voltage and high current impacts. This structure causes the pulse discharge device to generally require a large footprint to install multi-stage capacitor circuits, which is not conducive to testing lightning protection equipment at the scene of a lightning disaster. Utility Model Content

[0003] The purpose of this application is to solve at least one of the above technical deficiencies, especially the technical deficiencies of the prior art such as large size and poor portability.

[0004] The present application provides a multi-pulse discharge device, comprising a power supply module, a charging control module, a discharge control module, a plurality of energy storage modules and a control module;

[0005] The charging control module is connected between the power module and each energy storage module, and is used to connect or disconnect the first charging terminal and the second charging terminal of each energy storage module from the power module under the control of the control module;

[0006] The discharge control module is connected between the first discharge terminal and the second discharge terminal of each energy storage module, and is used to connect or disconnect the first discharge terminal and the second discharge terminal under the control of the control module;

[0007] The energy storage module includes an energy storage capacitor and a switch unit. The switch unit is turned on or off under the control of the control module. When the switch unit is turned on, the two ends of the energy storage capacitor are respectively connected to the first charging end and the second charging end, and are also respectively connected to the first discharging end and the second discharging end.

[0008] After controlling the charging control module to be turned on, the control module controls the switching units of each energy storage module to control the charging status of each energy storage module. After controlling the discharging control module to be turned on, the control module controls the switching units of each energy storage module to control the discharging interval of each energy storage module.

[0009] In one embodiment, the power supply module includes an optocoupler power supply terminal and a charging power supply terminal, and the charging control module includes a first transistor, a first optocoupler, a first thyristor, and a first current limiting resistor;

[0010] A first end of the first thyristor is connected to the charging power supply end, a second end of the first thyristor is connected to the energy storage module via a first current limiting resistor, and a control end of the first thyristor is connected to a first receiving end of the first optical coupler;

[0011] The first receiving end of the first optocoupler is connected to the common end of the first thyristor and the energy storage module, the second receiving end of the first optocoupler is connected to the first end of the first thyristor, the first transmitting end of the first optocoupler is connected to the optocoupler power supply end, and the second transmitting end of the first optocoupler is connected to the collector of the first transistor;

[0012] The base of the first transistor is connected to the control module, and the emitter of the first transistor is grounded.

[0013] In one embodiment, the charging control module further includes a second current limiting resistor and a third current limiting resistor;

[0014] Two ends of the second current limiting resistor are respectively connected to the first receiving end of the first optical coupler and the common end of the first thyristor and the energy storage module;

[0015] Two ends of the third current limiting resistor are respectively connected between the second receiving end of the first optical coupler and the first end of the first thyristor.

[0016] In one embodiment, the discharge control module includes a second transistor, a second optocoupler and a second thyristor;

[0017] A first end of the second thyristor is connected to the first discharge end, a second end of the second thyristor is connected to the second discharge end, and a control end of the second thyristor is connected to the first receiving end of the second optocoupler;

[0018] The first receiving end of the second optocoupler is connected to the common end between the second end of the second thyristor and the second discharge end, the second receiving end of the second optocoupler is connected to the first end of the second thyristor, the first transmitting end of the second optocoupler is connected to the optocoupler power supply end, and the second transmitting end of the second optocoupler is connected to the collector of the second transistor;

[0019] The base of the second triode is connected to the control module, and the emitter of the second triode is grounded.

[0020] In one embodiment, the discharge control module further includes a fourth current limiting resistor;

[0021] Two ends of the fourth current limiting resistor are respectively connected to the first receiving end of the second optocoupler and a common end between the second end and the second discharge end of the second thyristor.

[0022] In one embodiment, the energy storage module further includes a fifth current limiting resistor, and the switch unit includes a third triode, a third optocoupler, and a third thyristor;

[0023] The first end of the third thyristor is a first charging end and a first discharging end, the second end of the third thyristor is connected to the first end of the energy storage capacitor, and the control end of the third thyristor is connected to the first receiving end of the third optical coupler;

[0024] The second end of the energy storage capacitor is a second discharge end;

[0025] One end of the fifth current limiting resistor is connected to the second end of the energy storage capacitor, and the other end is the second charging end;

[0026] The first receiving end of the third optocoupler is connected to the second discharge end, the second receiving end of the second optocoupler is connected to the first end of the third thyristor, the first transmitting end of the third optocoupler is connected to the optocoupler power supply end, and the second transmitting end of the third optocoupler is connected to the collector of the third transistor;

[0027] The base of the third triode is connected to the control module, and the emitter of the third triode is grounded.

[0028] In one embodiment, the energy storage module further includes a sixth current limiting resistor and a seventh current limiting resistor;

[0029] Two ends of the sixth current limiting resistor are respectively connected to the first receiving end and the second charging end of the third optical coupler;

[0030] Two ends of the seventh current-limiting resistor are respectively connected between the second receiving end of the third optical coupler and the first end of the third thyristor.

[0031] In one embodiment, the power module includes a first rectifier unit and a second rectifier unit;

[0032] The input end of the first rectifier unit is used to connect to an AC power source, and the output end is a charging power source end;

[0033] The input end of the second rectifier unit is used to connect to the AC power supply, and the output end is the optocoupler power supply end.

[0034] In one embodiment, the control module includes a control unit and a counting unit;

[0035] The control unit is connected to the clock input end of the counting unit, and each counting output end of the counting unit is respectively connected to the control end of each switch unit. After controlling the discharge control module to turn on, the control unit sends a counting signal to the counting unit to turn on each switch unit in turn.

[0036] In one embodiment, the energy storage capacitor includes a polypropylene film capacitor.

[0037] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0038] The solution in this application greatly improves the flexibility and scalability of the system, allowing the number and configuration of energy storage modules to be adjusted according to specific needs. In addition, the independently controlled energy storage modules make the system highly redundant and reliable, and even if a single module fails, it will not affect the overall function. By precisely controlling the charging and discharging process of each energy storage module, the system can achieve complex multi-pulse discharge modes to meet the needs of various high-precision applications. This solution also abandons the multi-stage Max circuit used in traditional impulse voltage generating devices and uses the short-circuiting of energy storage capacitors to generate impulse current, which greatly reduces the size of the product and improves portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0040] Figure 1 A schematic diagram of a module of a multi-pulse discharge device provided in one embodiment of the present application;

[0041] Figure 2 A circuit diagram of a charging control module provided in one embodiment of the present application;

[0042] Figure 3 A circuit diagram of a power module provided in one embodiment of the present application;

[0043] Figure 4 A circuit diagram of a discharge control module provided in one embodiment of the present application;

[0044] Figure 5 A circuit diagram of an energy storage module provided in accordance with one embodiment of the present application. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0048] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, it does not mean that the component is required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the embodiments of the present utility model, "multiple" means at least 2.

[0049] This application provides a multi-pulse discharge device, see Figure 1 , including a power module 100, a charging control module 200, a discharging control module 300, multiple energy storage modules 400 and a control module.

[0050] The power module 100 is the energy source for the entire system, providing the initial electrical energy for the multi-pulse discharge device. Its primary task is to convert external electrical energy into the appropriate voltage and current levels required by the system. It must have sufficient power output to ensure rapid and efficient charging of the multiple energy storage modules 400 and power other electrical devices within the device.

[0051] The charging control module 200 is connected between the power module 100 and each energy storage module 400 and is used to connect or disconnect the first and second charging terminals of each energy storage module 400 from the power module 100 under the control of the control module. It will be understood that the charging control module 200 controls the charging process of the energy storage modules 400 under the control of the control module. The first and second charging terminals of the energy storage modules 400 are the two ports used by the energy storage modules 400 to form a charging circuit. These two ports of each energy storage module 400 are connected to the power module 100 through the charging control module 200. By controlling itself to be turned on, the charging control module 200 can connect the power module 100 and the energy storage modules 400. When charging any energy storage module 400, by controlling the switch unit within the energy storage module 400 to be turned on, the energy storage capacitor within the energy storage module 400 can be controlled to form a charging circuit with the power module 100 through the switch unit, the first charging terminal, the charging control module 200, and the second charging terminal, thereby entering the charging state.

[0052] The discharge control module 300 is connected between the first discharge terminal and the second discharge terminal of each energy storage module 400 and is used to connect or disconnect the first discharge terminal and the second discharge terminal under the control of the control module. It can be understood that the discharge control module 300 controls the discharge process of the energy storage module 400 under the control of the control module. The first discharge terminal and the second discharge terminal of the energy storage module 400 are the two ports of the energy storage module 400 used to form a discharge circuit. These two ports of each energy storage module 400 are connected through the discharge control module 300. By controlling its own conduction, the discharge control module 300 can connect these two ports of each energy storage module 400. When discharging any energy storage module 400, by controlling the switch unit within the energy storage module 400 to conduct, the two ends of the energy storage capacitor are short-circuited through the first discharge terminal, the switch unit, the discharge control module 300, and the second discharge terminal, forming a discharge circuit and generating an inrush current in the discharge circuit. The current detection module of the device under test is typically a current transformer (CT). The sensing end of the CT is connected to the common portion of the discharge circuit corresponding to each energy storage module 400 to receive the surge current generated by each energy storage module 400. The discharge control module 300 is turned on when pulse discharge is required, and the charge control module 200 is turned on when charging is required. Both are not turned on at the same time. When one control module is turned on, the other can be disconnected.

[0053] The energy storage module 400 includes an energy storage capacitor and a switch unit. The switch unit is turned on or off under the control of the control module. When the switch unit is turned on, the two ends of the energy storage capacitor are connected to the first charging terminal and the second charging terminal, respectively, and can receive the power provided by the power module 100 through the charging control module 200 for charging. When the switch unit is turned on, the two ends of the energy storage capacitor are also connected to the first discharge terminal and the second discharge terminal, respectively. The two ends of the energy storage capacitor can be short-circuited by the discharge control module 300, generating an inrush current.

[0054] During the discharge process, natural lightning generates a first return stroke pulse, subsequent return stroke pulses, continuous current pulses, an M component, and a final return stroke pulse. This means that real lightning produces multiple pulses with different waveforms and spaced at regular intervals. To better simulate the waveform of lightning, in this embodiment, each energy storage module 400 corresponds to one of these pulses. Therefore, the number of energy storage modules 400 can be consistent with the number of pulses present in the preset lightning waveform. After turning on the charging control module 200, the control module controls the charging status of each energy storage module 400 by controlling the switch units of each energy storage module 400. Specifically, the charging time can be controlled by controlling the on-time of the switch units, ensuring that each energy storage module 400 is charged to the voltage and energy level of the corresponding pulse, and generating a waveform similar to the corresponding pulse during discharge. To better simulate the interval and waveform of lightning, after turning on the discharge control module 300, the discharge interval of each energy storage module 400 is controlled by controlling the switch units of each energy storage module 400. Specifically, the energy storage modules 400 in this embodiment discharge sequentially. To simulate discharge, the discharge control module 300 is first turned on. Then, based on the intervals between pulses in a preset lightning waveform, the switch units within the energy storage modules 400 corresponding to each pulse are sequentially turned on, causing each energy storage module 400 to discharge sequentially at the preset intervals. The on-time of each energy storage module 400 is also controlled by the control module to better simulate the lightning waveform.

[0055] The solution in this application greatly improves the flexibility and scalability of the system, allowing the number and configuration of the energy storage modules 400 to be adjusted according to specific needs. In addition, the independently controlled energy storage modules 400 make the system highly redundant and reliable, and even if a single module fails, it will not affect the overall function. By precisely controlling the charging and discharging process of each energy storage module 400, the system can achieve complex multi-pulse discharge modes to meet the needs of various high-precision applications. This solution also abandons the multi-stage Max circuit used in traditional impulse voltage generating devices and uses energy storage capacitors to short-circuit to generate impulse current, which greatly reduces the size of the product and improves portability.

[0056] In one embodiment, see Figure 2 and Figure 3The power module 100 includes an optocoupler power supply terminal and a charging power supply terminal. The optocoupler power supply terminal provides the operating voltage for the optocoupler to ensure the normal operation of the signal isolation part. The charging power supply terminal is the power supply that actually powers the energy storage module 400. This separation design increases the safety of the system and isolates the control circuit from the high-voltage charging circuit. Specifically, in Figure 3 In the embodiment, the external AC power supply is connected to the first rectifier unit 110, and then filtered through multiple first filter capacitors 111 and a first filter inductor 112 connected in parallel with the output end of the first rectifier unit 110, thereby obtaining a charging power supply end, which can provide a charging voltage for the energy storage module 400. The model of the first rectifier unit 110 can be MB10S, and the capacitance values ​​of each first filter capacitor 111 can be 2.2uF, 4.7uF, 22uF, and 4.7uF respectively, and the first filter inductor 112 is 1mH. The voltage output from the charging power supply end can be 310V. The external AC power supply is connected to the second rectifier unit 120, and the output end of the second rectifier unit 120 is the optocoupler power supply end. The second rectifier unit 120 can be TAS5-5, and the voltage output from the optocoupler power supply end can be 5V. The charging control module 200 includes a first transistor 210, a first optocoupler 220, a first thyristor 230, and a first current limiting resistor 240. The optocoupler power supply terminal can also be connected to a voltage stabilizing unit 130, which can convert the voltage output by the optocoupler power supply terminal and output it from the control power supply terminal, which can power the control module. A plurality of second filter capacitors 131 can be connected in parallel between the optocoupler power supply terminal and the voltage stabilizing unit 130. A plurality of third filter capacitors 132 can also be connected in parallel at the output end of the voltage stabilizing unit 130. The capacitance values ​​of the second filter capacitors 131 are 10uF and 100nF respectively. The capacitance values ​​of the third filter capacitors 132 are 10uF and 100nF respectively. The voltage stabilizing unit 130 can be AMS1117.

[0057] The first end of the first thyristor 230 is connected to the charging power supply terminal, the second end of the first thyristor 230 is connected to the energy storage module 400 through the first current limiting resistor 240, and the control end of the first thyristor 230 is connected to the first receiving end of the first optocoupler 220. The first receiving end of the first optocoupler 220 is connected to the common end of the first thyristor 230 and the energy storage module 400, the second receiving end of the first optocoupler 220 is connected to the first end of the first thyristor 230, the first transmitting end of the first optocoupler 220 is connected to the optocoupler power supply terminal, and the second transmitting end of the first optocoupler 220 is connected to the collector of the first transistor 210. The base of the first transistor 210 is connected to the control module, and the emitter of the first transistor 210 is grounded. A resistor is connected in series with the base of the first transistor 210, and a resistor is connected in parallel between the base and emitter, forming a typical transistor switch circuit. When the charging control module 200 needs to be turned on, the control module turns on the first transistor 210 by sending a control signal to the base, generating an excitation current between the first transmitting terminal and the second transmitting terminal of the first optocoupler 220, turning on the first optocoupler 220, thereby generating a trigger signal at the first receiving terminal of the first optocoupler 220. The trigger signal will trigger the first thyristor 230 to turn on, so that the charging power supply terminal can be connected to the first charging terminal (or second charging terminal) of each energy storage module 400 through the first current limiting resistor 240.

[0058] In one embodiment, the charging control module 200 also includes a second current limiting resistor 250 and a third current limiting resistor 260. The two ends of the second current limiting resistor 250 are respectively connected to the first receiving end of the first optocoupler 220 and the common end of the first thyristor 230 and the energy storage module 400. The two ends of the third current limiting resistor 260 are respectively connected between the second receiving end of the first optocoupler 220 and the first end of the first thyristor 230. In order to further improve the safety and reliability of the system, the charging control module 200 also includes a second current limiting resistor 250 and a third current limiting resistor 260. The addition of these two resistors plays an important role in the stability of the system. The second current limiting resistor 250 and the third current limiting resistor 260 can limit the current passing through the optocoupler receiving end to prevent excessive current from damaging the optocoupler.

[0059] In one embodiment, see Figure 4The discharge control module 300 includes a second transistor 310, a second optocoupler 320, and a second thyristor 330. The first end of the second thyristor 330 is connected to the first discharge end, the second end of the second thyristor 330 is connected to the second discharge end, and the control end of the second thyristor 330 is connected to the first receiving end of the second optocoupler 320. The first receiving end of the second optocoupler 320 is connected to the common end between the second end of the second thyristor 330 and the second discharge end, the second receiving end of the second optocoupler 320 is connected to the first end of the second thyristor 330, the first transmitting end of the second optocoupler 320 is connected to the optocoupler power supply end, and the second transmitting end of the second optocoupler 320 is connected to the collector of the second transistor 310. The base of the second transistor 310 is connected to the control module, and the emitter of the second transistor 310 is grounded. The base of the second transistor 310 is connected to the control module, and the emitter of the second transistor 310 is grounded. The base of the second transistor 310 is connected in series with a resistor, and a resistor is connected in parallel between the base and emitter, forming a typical transistor switch circuit. When the discharge control module 300 needs to be turned on, the control module sends a control signal to the base to turn on the second transistor 310. This generates an excitation current between the first and second emitter terminals of the second optocoupler 320, turning on the second optocoupler 320. This generates a trigger signal at the first receiving terminal of the second optocoupler 320. The trigger signal triggers the second thyristor 330 to turn on, short-circuiting the first and second discharge terminals of each energy storage module 400 through the second thyristor 330.

[0060] In one embodiment, the discharge control module 300 further includes a fourth current-limiting resistor 340. The two ends of the fourth current-limiting resistor 340 are respectively connected to the first receiving end of the second optocoupler 320 and the common end between the second end of the second thyristor 330 and the second discharge end. To further improve the safety and reliability of the system, the discharge control module 300 also includes the fourth current-limiting resistor 340. The addition of this resistor plays an important role in system stability. The fourth current-limiting resistor 340 can limit the current passing through the optocoupler receiving end, preventing excessive current from damaging the optocoupler.

[0061] In one embodiment, see Figure 5The energy storage module 400 also includes a fifth current-limiting resistor 410, and the switch unit includes a third transistor 420, a third optocoupler 430, and a third thyristor 440. The first end of the third thyristor 440 is a first charging end and a first discharging end. The second end of the third thyristor 440 is connected to the first end of the energy storage capacitor 401, and the control end of the third thyristor 440 is connected to the first receiving end of the third optocoupler 430. The second end of the energy storage capacitor 401 is a second discharging end. One end of the fifth current-limiting resistor 410 is connected to the second end of the energy storage capacitor 401, and the other end is a second charging end. The first receiving end of the third optocoupler 430 is connected to the second discharging end, the second receiving end of the second optocoupler 320 is connected to the first end of the third thyristor 440, the first transmitting end of the third optocoupler 430 is connected to the optocoupler power supply end, and the second transmitting end of the third optocoupler 430 is connected to the collector of the third transistor 420. The base of the third transistor 420 is connected to the control module, and the emitter of the third transistor 420 is grounded. The base of the third transistor 420 is connected in series with a resistor, and a resistor is connected in parallel between the base and the emitter, forming a typical transistor switch circuit. When a certain energy storage module 400 needs to be charged, the control module first controls the charging control module 200 to be turned on and the discharging control module 300 to be turned off. Then, a control signal is sent to the base of the third transistor 420 in the energy storage module 400 to turn on the third transistor 420. An excitation current is generated between the first transmitting end and the second transmitting end of the third optocoupler 430, causing the third optocoupler 430 to turn on, thereby generating a trigger signal at the first receiving end of the second optocoupler 320. The trigger signal will trigger the third thyristor 440 to turn on, causing the energy storage capacitor 401 to be connected to the power module 100 through the fifth current limiting resistor 410, the first charging end, and the second charging end, so as to use the power provided by the power module 100 to charge the energy storage capacitor 401. When a certain energy storage module 400 needs to discharge, the control module first controls the discharge control module 300 to be turned on and the charge control module 200 to be turned off. Then, a control signal is sent to the base of the third transistor 420 in the energy storage module 400 to turn on the third transistor 420. An excitation current is generated between the first transmitting end and the second transmitting end of the third optocoupler 430, turning on the third optocoupler 430. A trigger signal is generated at the first receiving end of the second optocoupler 320. The trigger signal triggers the third thyristor 440 to be turned on, causing the energy storage capacitor 401 to be short-circuited through the first discharge end and the second discharge end, thereby generating an inrush current.

[0062] In one embodiment, the energy storage module 400 also includes a sixth current limiting resistor 450 and a seventh current limiting resistor 460. The two ends of the sixth current limiting resistor 450 are respectively connected to the first receiving end and the second charging end of the third optocoupler 430. The two ends of the seventh current limiting resistor 460 are respectively connected between the second receiving end of the third optocoupler 430 and the first end of the third thyristor 440. In order to further improve the safety and reliability of the system, the energy storage module 400 also includes a sixth current limiting resistor 450 and a seventh current limiting resistor 460. The addition of these two resistors plays an important role in the stability of the system. The sixth current limiting resistor 450 and the seventh current limiting resistor 460 can limit the current passing through the optocoupler receiving end to prevent excessive current from damaging the optocoupler.

[0063] In one embodiment, the control module includes a control unit and a counting unit. The control unit is connected to the clock input of the counting unit, and each counting output of the counting unit is respectively connected to the control end of each switch unit. After controlling the discharge control module 300 to be turned on, the control unit sends a counting signal to the counting unit to turn on each switch unit in sequence. It can be understood that in order to achieve the sequential discharge of the energy storage module 400, the present application uses a counting unit to control each energy storage module 400. The counting unit can be a decimal counter, such as HEF4017. The control end of each energy storage module 400 is connected to a counting output end of the counting unit. One of these connected counting output ends will output a valid control signal to turn on the switch unit of the corresponding energy storage module 400. When the control unit sends a counting signal to the counting unit, the counting output end that outputs the valid control signal will switch, which is equivalent to switching the next energy storage module 400 to emit a pulse. By controlling the interval of sending the counting signal, the interval of sending the pulse can be controlled.

[0064] In one embodiment, the energy storage capacitor 401 comprises a polypropylene film capacitor. The model can be 106J, which has the characteristics of small size, light weight, low loss, good stability, high withstand voltage, good self-healing effect, high reliability, and the ability to withstand large current shocks.

[0065] In one embodiment, in order to burn the computer program into the control module, the multi-pulse discharge device may further include peripheral circuits such as an automatic burning circuit and a download circuit.

[0066] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0067] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referenced to each other.

[0068] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-pulse discharge device, characterized in that: It includes a power supply module, a charging control module, a discharging control module, multiple energy storage modules and a control module; The charging control module is connected between the power module and each of the energy storage modules, and is used to connect or disconnect the first charging terminal and the second charging terminal of each of the energy storage modules from the power module under the control of the control module; The discharge control module is connected between the first discharge terminal and the second discharge terminal of each energy storage module, and is used to connect or disconnect the first discharge terminal and the second discharge terminal under the control of the control module; The energy storage module includes an energy storage capacitor and a switch unit, and the switch unit is turned on or off under the control of the control module; when the switch unit is turned on, the two ends of the energy storage capacitor are respectively connected to the first charging end and the second charging end, and are also respectively connected to the first discharging end and the second discharging end; After controlling the charging control module to be turned on, the control module controls the switching unit of each energy storage module to control the charging status of each energy storage module. After controlling the discharging control module to be turned on, the control module controls the switching unit of each energy storage module to control the discharging interval of each energy storage module.

2. The multi-pulse discharge device according to claim 1, characterized in that: The power supply module includes an optocoupler power supply terminal and a charging power supply terminal, and the charging control module includes a first transistor, a first optocoupler, a first thyristor and a first current limiting resistor; The first end of the first thyristor is connected to the charging power supply end, the second end of the first thyristor is connected to the energy storage module through the first current limiting resistor, and the control end of the first thyristor is connected to the first receiving end of the first optocoupler; The first receiving end of the first optocoupler is connected to the common end of the first thyristor and the energy storage module, the second receiving end of the first optocoupler is connected to the first end of the first thyristor, the first transmitting end of the first optocoupler is connected to the optocoupler power supply end, and the second transmitting end of the first optocoupler is connected to the collector of the first transistor; The base of the first transistor is connected to the control module, and the emitter of the first transistor is grounded.

3. The multi-pulse discharge device according to claim 2, characterized in that: The charging control module further includes a second current limiting resistor and a third current limiting resistor; Two ends of the second current limiting resistor are respectively connected to the first receiving end of the first optical coupler and the common end of the first thyristor and the energy storage module; Two ends of the third current limiting resistor are respectively connected between the second receiving end of the first optical coupler and the first end of the first thyristor.

4. The multi-pulse discharge device according to claim 1, characterized in that: The discharge control module includes a second triode, a second optical coupler and a second thyristor; The first end of the second thyristor is connected to the first discharge end, the second end of the second thyristor is connected to the second discharge end, and the control end of the second thyristor is connected to the first receiving end of the second optical coupler; The first receiving end of the second optocoupler is connected to the common end between the second end of the second thyristor and the second discharge end, the second receiving end of the second optocoupler is connected to the first end of the second thyristor, the first transmitting end of the second optocoupler is connected to the optocoupler power supply end, and the second transmitting end of the second optocoupler is connected to the collector of the second transistor; The base of the second transistor is connected to the control module, and the emitter of the second transistor is grounded.

5. The multi-pulse discharge device according to claim 4, characterized in that: The discharge control module further includes a fourth current limiting resistor; Two ends of the fourth current limiting resistor are respectively connected to the first receiving end of the second optocoupler and a common end between the second end of the second thyristor and the second discharge end.

6. The multi-pulse discharge device according to claim 4, characterized in that: The energy storage module further includes a fifth current limiting resistor, and the switch unit includes a third triode, a third optocoupler and a third thyristor; The first end of the third thyristor is the first charging end and the first discharging end, the second end of the third thyristor is connected to the first end of the energy storage capacitor, and the control end of the third thyristor is connected to the first receiving end of the third optocoupler; The second end of the energy storage capacitor is the second discharge end; One end of the fifth current limiting resistor is connected to the second end of the energy storage capacitor, and the other end is the second charging end; The first receiving end of the third optocoupler is connected to the second discharging end, the second receiving end of the second optocoupler is connected to the first end of the third thyristor, the first transmitting end of the third optocoupler is connected to the optocoupler power supply end, and the second transmitting end of the third optocoupler is connected to the collector of the third transistor; The base of the third transistor is connected to the control module, and the emitter of the third transistor is grounded.

7. The multi-pulse discharge device according to claim 6, characterized in that: The energy storage module further includes a sixth current limiting resistor and a seventh current limiting resistor; Two ends of the sixth current limiting resistor are connected to the first receiving end and the second charging end of the third optical coupler respectively; Two ends of the seventh current-limiting resistor are respectively connected between the second receiving end of the third optocoupler and the first end of the third thyristor.

8. The multi-pulse discharge device according to claim 2, characterized in that: The power module includes a first rectifier unit and a second rectifier unit; The input end of the first rectifier unit is used to connect to the AC power supply, and the output end is the charging power supply end; The input end of the second rectifier unit is used to connect to the AC power supply, and the output end is the optocoupler power supply end.

9. The multi-pulse discharge device according to claim 1, characterized in that: The control module includes a control unit and a counting unit; The control unit is connected to the clock input end of the counting unit, and each counting output end of the counting unit is respectively connected to the control end of each switching unit. After controlling the discharge control module to be turned on, the control unit sends a counting signal to the counting unit to turn on each switching unit in sequence.

10. The multi-pulse discharge device according to any one of claims 1 to 9, characterized in that: The energy storage capacitor includes a polypropylene film capacitor.

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