CN210347724U - Multi-waveform lightning generator - Google Patents
Multi-waveform lightning generator Download PDFInfo
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- CN210347724U CN210347724U CN201920662326.9U CN201920662326U CN210347724U CN 210347724 U CN210347724 U CN 210347724U CN 201920662326 U CN201920662326 U CN 201920662326U CN 210347724 U CN210347724 U CN 210347724U
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Abstract
The utility model relates to a multi-waveform lightning generator belongs to waveform generator technical field, including the generator body, be provided with single strike-back major loop, many times strike-back fast fill unit, touch-sensitive screen the control unit and peak acquisition measuring unit in the generator body, single strike-back major loop of the invention includes constant current charging unit one, energy storage unit, discharge switch, wave modulation unit, current coil and voltage divider, many times strike-back fast fill unit of the invention includes constant current charging unit two, energy storage electric capacity and fast charge switch, the touch-sensitive screen is installed to generator body front side of the invention, the touch-sensitive screen of the invention passes through the electric wire and is connected with invention touch-sensitive screen the control unit, the utility model discloses novel structure can produce a plurality of transient pulse wave forms, and the integrated level is high, has reduced equipment development cost.
Description
Technical Field
The utility model relates to a multi-waveform lightning generator belongs to waveform generator technical field.
Background
The lightning indirect effect test means that when lightning discharges, an electromagnetic field generated by large current can cause an induction effect on peripheral instruments, circuits and the like, so that the peripheral circuits can induce a large voltage or current, and the induced surge current or voltage can cause the damage of indirect effects on the instruments and equipment connected on the circuits. At present, a common lightning simulator can only output 1 or 2 waveforms, and the waveforms are all single current or voltage waves. Generally, airplanes, missiles, military equipment and the like exposed to thunderstorm weather are easy to be struck by lightning, different waveforms can be induced on electronic instruments and cable bundles in the equipment according to different lightning phenomena and coupling modes between lightning and the equipment, the waveforms are specified in the standard RTCA-DO160G edition standard, and the waveforms comprise 6 types of waveforms from waveform 1 to waveform 6, wherein the waveform 3 is divided into 1MHz and 10MHz 2 waveforms.
As for 8 types of waveforms of up to 6 types of lightning induction effects, a common lightning simulator needs to be divided into a plurality of generators to realize the lightning induction effects, the problems of low system integration level, high production cost, generator switching during testing, troublesome operation and the like are solved, and a multi-waveform lightning generator is needed to solve the problems.
Disclosure of Invention
The utility model discloses the technical problem who solves overcomes current defect, provides a multi-waveform thunder electricity generator, can effectively solve the problem in the background art, the utility model discloses novel structure can produce a plurality of transient pulse wave forms, and the integrated level is high, has reduced equipment development cost.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a multi-waveform lightning generator, includes the generator body, this internal single main loop that hits back, many times hits back the unit of charging soon, touch-sensitive screen the control unit and the peak value gathers measuring unit, single main loop that hits back includes constant current charging unit one, energy storage unit, discharge switch, wave modulation unit, current coil and voltage divider, many times hit back the unit of charging soon and include constant current charging unit two, energy storage capacitor and the switch of charging soon, the generator body includes cabinet body one and cabinet body two, the touch-sensitive screen is installed to cabinet body one front side, the touch-sensitive screen pass through the electric wire with the touch-sensitive screen the control unit is connected.
Further, the constant current charging unit comprises a high voltage transformer, a thyristor module, a constant current control unit and a protection resistor.
Further, the energy storage unit is a pulse non-inductive capacitor bank, the discharge switch is an SCR fast electronic switch, and the wave modulation unit comprises a wave modulation resistor, a wave modulation inductor and a plurality of change-over switches.
Further, the current coil and the voltage divider are respectively connected with the touch screen through wires.
Further, the second constant current charging unit is charged in a constant voltage mode by a voltage regulator.
Furthermore, the energy storage capacitor is a high-capacity energy storage capacitor, and the fast charging switch is an IGBT high-voltage high-power electronic switch.
The utility model discloses beneficial effect:
the utility model adopts one device to generate a plurality of transient pulse waveforms, the integration level is high, and the development cost of the device is reduced; the generator adopts a high-voltage switch to automatically switch the waveforms, and the switching of 8 waveforms can be realized only by operating on a touch screen; a double-path charging power supply is arranged in the generator body, so that 1-25 pulses can be continuously output, and the amplitude of the first wave and the amplitude of the subsequent wave can be randomly adjusted according to requirements; because the generator body comprises the first cabinet and the second cabinet, the cabinets can be selectively used according to single-waveform output and multi-waveform output.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic electrical connection diagram of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a circuit diagram of the main loop of the present invention.
Fig. 4 is a schematic diagram of the present invention.
Reference numbers in the figures: 1. a generator body; 2. single back-striking the main loop; 3. a multi-impact quick charging unit; 4. a touch screen control unit; 5. a peak value acquisition measuring unit; 6. a touch screen; 7. a first cabinet body; 8. and a second cabinet body.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1-2, a multi-waveform lightning generator includes a generator body 1, and is characterized in that: the generator body 1 is internally provided with a single-back-striking main loop 2, a multiple-back-striking fast-charging unit 3, a touch screen control unit 4 and a peak value acquisition and measurement unit 5, the single-back-striking main loop 2 comprises a first constant-current charging unit, an energy storage unit, a discharge switch, a wave modulation unit, a current coil and a voltage divider, the multiple-back-striking fast-charging unit 3 comprises a second constant-current charging unit, an energy storage capacitor and a fast-charging switch, the generator body 1 comprises a first cabinet body 7 and a second cabinet body 8, a touch screen 6 is installed on the front side of the first cabinet body 7, and the touch screen 6 is connected with the touch screen control unit 4 through an electric wire.
The constant-current charging unit comprises a high-voltage transformer, a silicon controlled module, a constant-current control unit and a protection resistor, so that the constant-current charging of the energy storage capacitor can be realized through the control unit, and the highest charging voltage can reach 10 kV; the energy storage unit is a pulse non-inductive capacitor bank, so that different capacitance can be used by switching to meet different waveform requirements, the discharge switch is an SCR fast electronic switch, so that the test requirements of waveforms such as W1, W4, W5A, W5B and the like can be met, and the wave modulation unit comprises a wave modulation resistor, a wave modulation inductor and a plurality of change-over switches; the current coil and the voltage divider are respectively connected with the touch screen 6 through wires and are mainly used for measuring the output current and voltage waveforms, collecting the current and voltage waveforms through the peak value collecting unit and outputting the current and voltage waveforms to the touch screen for display; the second constant-current charging unit adopts a constant-voltage charging mode of a voltage regulator, so that the high-capacity energy storage capacitor can be quickly and stably filled; the energy storage capacitor is a high-capacity energy storage capacitor, more than 80% of voltage can still be kept after 14 subsequent pulses are continuously output, and the quick charging switch is an IGBT high-voltage high-power electronic switch, so that the main capacitor is quickly charged according to a certain time.
As shown in fig. 2, the multi-waveform main loop implements the principle: the capacitor components are divided into 3 groups (C1, C2 and C3) according to the capacitance needed by different waveforms, all waveforms share a discharge switch KD, the selected waveform and the test mode can be switched by switches K4-K9, and in order to achieve the maximum utilization rate, different wave modulation loops are used for wave modulation, such as a waveform 4, when the pin injection mode is carried out, the L1, the R1 and the parallel resistor R10 are used for outputting waveforms, when the R10 is about 1 omega, when the capacitor is charged by 10kV, 5 omega or 1 omega impedance of 2500V can be output, when the cable harness test is carried out, the current waveform is not required, the output of higher voltage can be realized by adjusting the resistance of the wave modulation loop and using L2, R2 and the parallel resistor R11, at the moment, the capacitor is charged by 10kV, the waveform of the output voltage can reach more than 4kV, other waveforms can realize higher voltage or current amplitude output during cable bundle testing according to the same idea.
As shown in fig. 3, the implementation principle of the multi-click function is as follows: the basic principle of the multi-waveform generator for realizing the multi-strike function is to adopt a mode of realizing pulse waveform output by charging and discharging a capacitor, and the mode is mainly divided into three parts, namely a charging circuit, a discharging circuit and a control part. The charging loop and the discharging loop are respectively connected with the control part. The charging loop comprises a constant current module HVDC, a charging switch Kp and the like; the discharging loop is composed of a capacitor bank C, a discharging switch Kd, a wave-adjusting resistor R1, a wave-adjusting inductor L1, a waveform change-over switch K and the like; the control part is mainly formed by connecting a control unit module with each part of the charging circuit and each part of the discharging circuit respectively. When the generator performs a single back-strike test, the HVDC0 and the C0 are not charged with Kp and are in a disconnected state, the control unit controls the HVDC to charge the energy storage capacitor C with constant current, when the charging voltage reaches a set value, the switch kd is triggered to act, the charge is discharged through the R1 and the L1 through the pre-selected waveform switch k, and the discharged pulse current flows through the tested equipment EUT to achieve the purpose of test.
When a plurality of back-strike tests are carried out, the HVDC0 charges the C0 to a set value, the set value can meet the requirement of subsequent pulse output of the back-strike, the first-wave output is the same as that of single back-strike, and the C is charged by using the HVDC. During discharging, the Kd switch is triggered to realize first-wave output, then Kp is closed, so that the capacitor C is filled with large-capacity C0 in a short time (within 50 ms), then the discharge is carried out through the Kd switch, and the discharge frequency reaches 14 times in 1.5s by continuously executing the action. Meets the requirement of the standard on multiple back strokes.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.
Claims (6)
1. A multi-waveform lightning generator comprising a generator body (1), characterized in that: the generator is characterized in that a single-back-striking main loop (2), a multiple-back-striking fast-charging unit (3), a touch screen control unit (4) and a peak value acquisition and measurement unit (5) are arranged in the generator body (1), the single-back-striking main loop (2) comprises a constant-current charging unit I, an energy storage unit, a discharge switch, a wave modulation unit, a current coil and a voltage divider, the multiple-back-striking fast-charging unit (3) comprises a constant-current charging unit II, an energy storage capacitor and a fast-charging switch, the generator body (1) comprises a cabinet body I (7) and a cabinet body II (8), a touch screen is installed on the front side of the cabinet body I (7), and the touch screen (6) is connected with the touch screen control unit (4) through an electric wire.
2. A multi-waveform lightning generator according to claim 1, characterised in that: the constant-current charging unit I comprises a high-voltage transformer, a silicon controlled module, a constant-current control unit and a protection resistor.
3. A multi-waveform lightning generator according to claim 1, characterised in that: the energy storage unit is a pulse non-inductive capacitor bank, the discharge switch is an SCR (silicon controlled rectifier) rapid electronic switch, and the wave modulation unit comprises a wave modulation resistor, a wave modulation inductor and a plurality of change-over switches.
4. A multi-waveform lightning generator according to claim 1, characterised in that: the current coil and the voltage divider are respectively connected with the touch screen (6) through wires.
5. A multi-waveform lightning generator according to claim 1, characterised in that: and the second constant-current charging unit adopts a constant-voltage charging mode of a voltage regulator.
6. A multi-waveform lightning generator according to claim 1, characterised in that: the energy storage capacitor is a high-capacity energy storage capacitor, and the quick charging switch is an IGBT high-voltage high-power electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920662326.9U CN210347724U (en) | 2019-05-10 | 2019-05-10 | Multi-waveform lightning generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920662326.9U CN210347724U (en) | 2019-05-10 | 2019-05-10 | Multi-waveform lightning generator |
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| CN210347724U true CN210347724U (en) | 2020-04-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018335A (en) * | 2019-05-10 | 2019-07-16 | 苏州峰极电磁科技有限公司 | A kind of more waveform thunder and lightning generators |
| CN111722006A (en) * | 2020-06-22 | 2020-09-29 | 合肥工业大学 | Voltage and current acquisition device for epoxy resin composite material under action of lightning current |
-
2019
- 2019-05-10 CN CN201920662326.9U patent/CN210347724U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018335A (en) * | 2019-05-10 | 2019-07-16 | 苏州峰极电磁科技有限公司 | A kind of more waveform thunder and lightning generators |
| CN111722006A (en) * | 2020-06-22 | 2020-09-29 | 合肥工业大学 | Voltage and current acquisition device for epoxy resin composite material under action of lightning current |
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