Electrostatic discharge inductive coupling device

Abstract

The utility model discloses an electrostatic discharge inductive coupling device which comprises an electrostatic pulse generating unit, an electrostatic discharge inductive coupling unit and / or a verification and expansion application unit, the electrostatic pulse generating unit is connected with the electrostatic discharge inductive coupling unit, and the electrostatic discharge inductive coupling unit is connected with the verification and expansion application unit. The utility model provides an electrostatic discharge inductive coupling device, which can further expand an electrostatic discharge test method to be applied to risk investigation of anti-interference performance of equipment and electromagnetic compatibility optimization design. Meanwhile, the device disclosed by the utility model can also realize verification of parameters such as field intensity, frequency and the like of an electrostatic pulse field and expanded application of inductively coupled pulses. In addition, the device disclosed by the utility model also has the functions of controlling the state of the micro-signal relay or transmitting to the sampling circuit module for measurement and calibration and the like in a non-contact voltage / current / energy coupling mode and the like.

Description

Technical Field

[0001] The utility model relates to an electrostatic discharge inductive coupling device, belonging to the technical field of electromagnetic compatibility. Background Art

[0002] The purpose of electromagnetic compatibility (EMC) testing is to assess whether a system or device can operate normally and without interference in a specific electromagnetic environment. Electrostatic discharge (ESD) immunity testing is a key component of EMC testing. It primarily evaluates whether the device under test (EUT) meets expected functional, performance, and safety requirements when subjected to external ESD pulses. GB / T 17626.2 (corresponding to international standards EN 61000-4-2 and IEC 61000-4-2) specifies ESD immunity testing. This test specification is based on the human body discharge model and includes both direct and indirect discharges to the test sample. Direct discharge includes contact discharge and air discharge; details are available in GB / T 17626.2-2018. Indirect discharge occurs through the edge of a coupling plate near the test sample. The standard dimensions of the coupling plate are 0.5m x 0.5m, with a distance of 0.1m from the test sample. Indirect discharge generates an electrostatic field near the product. During testing, the test sample is positioned so that every side is exposed to the electrostatic field. The rapidly rising current caused by electrostatic discharge (ESD) affects the strength of the transient field, which can be either an electric or magnetic field, far-field or near-field. The rise time of the ESD pulse also affects the frequency and strength of the ESD pulse field. The coupling between the ESD pulse field and the test sample can be capacitive or inductive. The ESD specified in the standard primarily couples via parasitic capacitance between the circuit and the coupling plate, which in principle is a typical capacitive coupling method. However, relevant literature does not report on ESD test methods, verification methods, or test equipment that simulate inductive coupling.

[0003] Inductive coupling is the induced voltage generated by the magnetic flux density of the closed loop area on the test sample. This induced voltage caused by the external conductor will obviously cause signal confusion in the circuit and may also cause damage to the circuit. For example, if the electrostatic discharge instantaneous current is 20A / ns at a distance of 10cm from the inductive coupling loop, then the PCB printed circuit board 10cm away will be 2A 40V instantaneous voltage will be generated in the loop. For large systems composed of multiple units or integrated systems encapsulated in a shielded cabinet, traditional capacitive coupling cannot ensure that all areas of the test sample are interfered with by the electrostatic discharge capacitance coupling of the coupling plate. Usually, many integrated systems are composed of multiple control cabinets, etc., and multiple units are arranged vertically inside the cabinet. Under such conditions, the indirect discharge field coupling defined by the standard cannot conduct strict electrostatic discharge interference tests on each unit in the test system under system conditions. In actual production life, in addition to the human body model, electrostatic discharge also has machine models, component charging models, etc. The main difference lies in the charge accumulation method and the equivalent resistance and capacitance values of the discharge model. Utility Model Content

[0004] The purpose of the utility model is to expand the electrostatic discharge inductive coupling test and expand the application of electromagnetic compatibility safety assessment at the component level, circuit board level, equipment level and system level.

[0005] In order to achieve the above-mentioned object, the technical solution of the present utility model is to provide an electrostatic discharge inductive coupling device, including an electrostatic pulse generating unit, an electrostatic discharge inductive coupling unit and / or a verification and expansion application unit, wherein the electrostatic pulse generating unit is connected to the electrostatic discharge inductive coupling unit, and the electrostatic discharge inductive coupling unit is connected to the verification and expansion application unit, wherein:

[0006] The electrostatic pulse generating unit includes a charging unit and a discharging unit located in the shielding box, wherein:

[0007] The charging unit includes a high-voltage charging power supply, a charging switch, a charging resistor, and a charging and discharging capacitor; the discharging unit includes a charging and discharging capacitor, a discharge resistor, a discharge switch, and an electrostatic pulse output port; the high-voltage charging power supply is connected in series with the discharge switch and the discharge resistor and then connected to the charging and discharging capacitor, thereby forming a charging circuit; one end of the charging and discharging capacitor is connected in series with the discharge resistor, the discharge switch, and the electrostatic pulse output port, and then passes through the shielding box connection port 1 on the shielding box to be connected to the electrostatic discharge inductive coupling unit, and the other end of the charging and discharging capacitor passes through the shielding box connection port 2 on the shielding box to be connected to the electrostatic discharge inductive coupling unit;

[0008] The electrostatic discharge inductive coupling unit includes an electrostatic discharge pulse injection port, a coupling loop waveform parameter adjustment unit, an inductive coupling loop, a discharge rate adjustment unit, and an inductive coupling receiving loop;

[0009] The input end of the electrostatic discharge pulse injection port is connected to the electrostatic pulse output port, and the output end of the electrostatic discharge pulse injection port is connected in series with the coupling loop waveform parameter adjustment unit, the inductive coupling loop and the discharge rate adjustment unit and then connected to the other end of the charging and discharging capacitor. The inductive coupling receiving circuit couples the electrostatic discharge pulse output by the loop waveform parameter adjustment unit through the inductive coupling circuit, and outputs the coupled electrostatic discharge pulse to the verification and expansion application unit;

[0010] Or the electrostatic discharge inductive coupling unit includes an electrostatic discharge pulse injection port, a coupling loop waveform parameter adjustment unit, an inductive coupling loop, a discharge rate adjustment unit, and a test sample circuit;

[0011] The input end of the electrostatic discharge pulse injection port is connected to the electrostatic pulse output port, and the output end of the electrostatic discharge pulse injection port is connected in series with the coupling loop waveform parameter adjustment unit, the inductive coupling loop and the discharge rate adjustment unit and then connected to the other end of the charging and discharging capacitor. The test sample circuit is coupled to the electrostatic discharge pulse output by the coupling loop waveform parameter adjustment unit through the inductive coupling loop.

[0012] Preferably, the shielding box is connected to a reference ground port, and the reference ground port is a common reference ground point of the electrostatic discharge inductive coupling device.

[0013] Preferably, the electrostatic pulse output port and the electric discharge pulse injection port are connected by a threaded structure.

[0014] Preferably, the interior of the electrostatic pulse output port is a metal conductor and the exterior is an insulating layer, and the thickness of the insulating layer is greater than 2 cm.

[0015] Preferably, the shielding box connection port 1 and the shielding box connection port 2 are fixed support structures made of insulating material.

[0016] Preferably, the inner layer of the electrostatic discharge pulse injection port is made of a hard wire with high conductivity and low ferromagnetism, and the outer layer is made of a hard insulating material, and the surface resistivity of the selected insulating material is greater than 1×10 12 Ω / m 2 , and the thickness of the outer insulation layer is greater than 5mm and the insulation resistance is greater than 50MΩ.

[0017] Preferably, the coupling loop waveform parameter adjustment unit is a circuit or a separate component.

[0018] Preferably, the inductive coupling loop is a planar or curved structural member of various shapes made of a high-conductivity, non-ferromagnetic metal wire with an insulating layer, the impedance of the insulating layer is greater than 5MΩ, and the thickness of the insulating layer is greater than 30mm.

[0019] Preferably, the discharge rate adjustment unit is implemented by a series resistor.

[0020] Preferably, the verification and extended application unit includes an inductive coupling waveform verification port, a transient electromagnetic pulse rapid verification device, and a functional application expansion port, wherein:

[0021] The inductive coupling waveform verification port is an instrument for verifying the output of electrostatic discharge pulses;

[0022] The transient electromagnetic pulse rapid verification device 18 is a pulse output response device;

[0023] Function application expansion port 19 is a pulse expansion application debugging port.

[0024] This utility model provides an electrostatic discharge inductive coupling device that can further expand the application of electrostatic discharge test methods to risk investigation of equipment anti-interference performance and electromagnetic compatibility optimization design. The device disclosed in this utility model can also verify parameters such as electrostatic pulse field strength and frequency and expand the application of inductive coupling pulses. Furthermore, the device disclosed in this utility model can also control the state of a micro-signal relay or transmit it to a sampling circuit module for measurement calibration through non-contact coupling of voltage / current / energy.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. It can conduct inductive coupling testing and verification of electrostatic discharge (currently there is no relevant standard), simulating the interference of electrostatic pulse interference current conducted by the internal circuit of the system on nearby circuits;

[0027] 2. The discharge loop impedance can be freely adjusted to simulate electrostatic discharge models under various discharge conditions;

[0028] 3. Inductive coupling loops can be used in a variety of shapes and sizes to suit the ESD protection performance evaluation of circuit boards, equipment, systems, etc.

[0029] 4. The shielding effectiveness of the outer shell of the electrostatic pulse generating unit reaches over 60dB, which can effectively reduce the interference of the electromagnetic field generated by the charging and discharging unit on auxiliary equipment that is more sensitive to the electrostatic pulse field, and facilitate the performance evaluation of the test samples;

[0030] 5. It can realize the electrostatic discharge field coupling test between the vertical space between large equipment and between different layers of equipment in the same equipment cabinet, making up for the limitations of current capacitive coupling applications;

[0031] 6. The electrostatic pulse signal picked up by inductive coupling can be extended to external applications. After the inductive coupling receiving circuit couples the pulse, the pulse output level can be verified;

[0032] 7. The electrostatic pulse signal picked up by inductive coupling can be extended to external applications to trigger the action of external circuit status and realize circuit control. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a functional schematic diagram of an electrostatic discharge inductive coupling device;

[0034] Figure 2 This is a schematic diagram of the electrostatic discharge inductive coupling test method between cabinets of the system;

[0035] Figure 3 Schematic diagram of the electrostatic discharge inductive coupling test method between vertical units inside the cabinet;

[0036] Figure 4 This is an example of electrostatic discharge inductive coupling;

[0037] Figure 5 is the inductive coupling waveform;

[0038] Figure 6 This is a schematic diagram of the inductively coupled pulse triggered switch circuit. DETAILED DESCRIPTION

[0039] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that such equivalents also fall within the scope of the claims appended hereto.

[0040] Implementation Plan 1

[0041] like Figure 1 As shown, the electrostatic discharge inductive coupling device disclosed in this embodiment includes an electrostatic pulse generating unit, an electrostatic discharge inductive coupling unit, and a verification and expansion application unit. The electrostatic pulse generating unit further includes a high-voltage charging power supply 1, a charging switch 2, a charging resistor 3, a charging and discharging capacitor 4, a discharge resistor 5, a discharge switch 6, an electrostatic pulse output port 7, a shielding box connection port 1 8, a shielding box connection port 2 13, a shielding box 14, and a reference ground port 15. The electrostatic discharge inductive coupling unit further includes an electrostatic discharge pulse injection port 9, a coupling loop waveform parameter adjustment unit 10, an inductive coupling loop 11, a discharge rate adjustment unit 12, and an inductive coupling receiving loop 16. The verification and expansion application unit further includes an inductive coupling waveform verification port 17, a transient electromagnetic pulse rapid verification device 18, and a functional application expansion port 19.

[0042] The high-voltage charging power supply 1 provides charging power to the charging and discharging capacitor 4. In this embodiment, the high-voltage charging power supply 1 adopts a DC high-voltage source.

[0043] When charging switch 2 is turned on, high-voltage charging power supply 1 charges charging and discharging capacitor 4 via charging resistor 3. Charging switch 2 and discharging switch 6 are mechanical switches or logic-programmed relays that operate as switches. Charging switch 2 uses current / voltage sensors to collect status information from charging and discharging capacitor 4. Charging switch 2 and discharging switch 6 can be linked to achieve an orderly charging and discharging process. In this embodiment, charging switch 2 and discharging switch 6 can achieve switching speeds in the order of ps to us.

[0044] The charge and discharge capacitor 4 is used to realize the electric energy storage function. A preferred embodiment is: the charge and discharge capacitor 4 preferably adopts a typical capacitance value of 50pF, 150pF, 330pF, etc. under the conditions of simulating different electrostatic discharge models. In this embodiment, the charge and discharge capacitor 4 is selected to be 150pF.

[0045] The resistance of discharge resistor 5 ranges from 50Ω to 10,000Ω. A preferred embodiment is to use a resistance of 330Ω, 500Ω, or 2,000Ω to simulate specific discharge model conditions. In this embodiment, 330Ω is selected for discharge resistor 5. Alternatively, different resistance values can be used to simulate discharge through a finger, for example, 10kΩ for simulating discharge through a finger, 1,000Ω for simulating discharge through a palm, or 500Ω for simulating discharge through a metal key.

[0046] The electrostatic pulse output port 7 is a threaded connection port, which can be an internal thread interface or an external thread interface. A preferred embodiment is that the electrostatic pulse output port 7 adopts an external thread interface. A preferred embodiment is that the port diameter of the electrostatic pulse output port 7 is 5mm. The interior of the electrostatic pulse output port 7 is a metal conductor with a conductivity greater than 50S / m. The outside of the electrostatic pulse output port 7 is an insulating layer. The thickness of the insulating layer needs to meet the safety distance of high-voltage pulse breakdown, the shielding effectiveness of the shielding box on the radiation field generated by the electrostatic pulse generating unit, and the requirement to reduce the parasitic capacitance between the electrostatic pulse output port 7 and the shielding box. A preferred embodiment is that the thickness of the insulating layer is greater than 2cm. A preferred embodiment is that the surface resistivity of the selected insulating material is greater than 1×10 12 Ω / m 2 In this embodiment, the electrostatic pulse output port 7 is externally connected to the inductive coupling loop 11 using an IEC 61000-4-2 contact discharge head or a straight-connected threaded discharge low-resistance wire.

[0047] The shielding box connection port 18 is a fixed support structure made of insulating material. A preferred embodiment is that the surface resistivity of the insulating material selected for the shielding box connection port 18 is greater than 1×10 12 Ω / m 2 A preferred embodiment is that the length of the shielding box connection port 1 8 is greater than 5 cm.

[0048] The electrostatic discharge pulse injection port 9 is connected to the electrostatic pulse output port 7, and transmits the coupled pulse voltage / current to the coupling loop waveform parameter adjustment unit 10. The electrostatic discharge pulse injection port 9 is complementary to the electrostatic pulse output port 7, and can be an internal thread interface or an external thread interface. A preferred embodiment is that the electrostatic discharge pulse injection port 9 is an internal thread fastening interface. The thread height of the electrostatic discharge pulse injection port 9 is greater than 1 mm, the pitch is less than 0.7 mm, and the DC impedance with the electrostatic pulse output port 7 is less than 1 μΩ. The inner layer of the electrostatic discharge pulse injection port 9 is made of a high conductivity, low ferromagnetism hard wire, and the outer layer is made of a hard insulating material. A preferred embodiment is that the surface resistivity of the selected insulating material is greater than 1×10 12 Ω / m 2 A preferred embodiment is that the thickness of the insulating layer is greater than 5 mm. A preferred embodiment is that the insulation resistance is greater than 50 MΩ.

[0049] The coupling loop waveform parameter adjustment unit 10 is a circuit or individual components composed of resistors, capacitors, and inductors. It can be adjusted based on actual test and rating requirements to achieve varying degrees of inductive coupling with the test sample. It can also adjust the rise time of the electrostatic pulse, thereby affecting the frequency and amplitude of the electrostatic field, facilitating the evaluation of ESD interference resistance during product design.

[0050] The inductive coupling loop 11 is a flat or curved surface of various shapes made of high-conductivity, non-ferromagnetic metal wire with an insulating layer, as well as other shapes that can simulate typical electrostatic pulse field interference models under specific conditions, preferably a flat rectangular or circular shape. The wire diameter and conductivity of the inductive coupling loop 11 are selected according to the actual application, preferably copper or silver wire with a conductivity greater than 0.0217S. A preferred embodiment is: the impedance of the insulation layer of the inductive coupling loop 11 is greater than 5MΩ, and the thickness of the insulation layer is greater than the safe distance for breakdown. A preferred embodiment is: the thickness of the insulation layer can be selected according to the actual test level applied, with a safety distance of 1mm / kV, and the thickness of the insulation layer is greater than 30mm to prevent 30kV static electricity from directly breaking through the insulation layer and reaching the surface of the test sample, thereby ensuring that the actual electrostatic field coupling method is inductive coupling. In this embodiment, the inductive coupling loop 11 uses a hard wire with a conductivity greater than that of silver (the outer diameter of the joint is greater than 30mm, and the diameter of the remaining parts is 2±0.2mm). The shape can be rectangular, circular, or polygonal to adapt to different application scenarios.

[0051] The discharge rate adjustment unit 12 is implemented by a series resistor, the resistance of which can be adjusted according to the actual discharge rate required, and the impedance is 0-1MΩ. A preferred embodiment is: the resistance value is 940kΩ.

[0052] The shielding box connection port 2 13 is the same as the shielding box connection port 1 8.

[0053] Shielding box 14 encloses the charging and discharging units, protecting them from external influences caused by the electrostatic field during the charging and discharging process of the electrostatic pulse generator. Shielding box 14 has four ports: port 1 for power input, ports 2 and 3 for the inductive coupling unit, and port 4 for grounding the outer shell of shielding box 14. A preferred embodiment provides a shielding effectiveness greater than 60dB.

[0054] The reference ground port 15 is the common reference ground point of the entire device.

[0055] The inductive coupling receiving circuit 16 can be a test sample circuit, or it can be an inductive coupling receiving circuit for verification and expansion of applications. For example, if applied to field strength verification, the area ratio of the inductive coupling receiving circuit 16 to the inductive coupling circuit 11 can be preferably 1:100, 1:500:1, 1:1000, etc. If it is in a pulse-triggered action switch application, the area ratio of the inductive coupling receiving circuit 16 to the inductive coupling circuit 11 can be set to 1:5, 1:10, 1:50, 1:100, etc. When the inductive coupling receiving circuit 16 is a test sample circuit, the evaluation of the electrostatic field coupling test is mainly implemented. When the inductive coupling receiving circuit 16 is an inductive coupling receiving circuit for verification and expansion of applications, it is used to pulse-verify the output of the electrostatic pulse field and indirectly verify the output state of the electrostatic generator.

[0056] The inductive coupling waveform verification port 17 is an instrument for verifying the output of the electrostatic discharge pulse, and may be an oscilloscope, a spectrum analyzer, or a power meter.

[0057] The transient electromagnetic pulse rapid verification device 18 is a pulse output response device represented by new signals such as indicator lights and numbers.

[0058] Function application expansion port 19 is a pulse expansion application debugging port, which can be used to debug the pulse-triggered signal relay on-off control and transient pulse trigger unit, etc.

[0059] Implementation Plan 2

[0060] according to Figure 2 As shown, the following test evaluation operations can be performed:

[0061] 1) Place the inductive coupling loop 11 of the above-mentioned inductive coupling test device in area A between device 1 and device 2 for testing;

[0062] 2) Place the inductive coupling loop 11 of the inductive coupling test device in area B between device 2 and device 3 for testing.

[0063] Implementation Plan 3

[0064] according to Figure 3 As shown, the inductive coupling loop 11 of the above-mentioned inductive coupling test device is placed on any two adjacent layers of units 1-N for test evaluation.

[0065] Implementation Plan 4

[0066] like Figure 4 As shown, 1) the electrostatic pulse generating unit described in embodiment 1 is used to output an electrostatic pulse to the inductive coupling circuit 11, and the discharge voltage is set to +2kV;

[0067] 2) The area ratio of the inductive coupling loop 11 to the inductive coupling receiving loop 16 is 5:1, and the horizontal spacing is 5 cm;

[0068] 3) The inductive coupling receiving circuit 16 couples the electrostatic discharge pulse through inductive coupling and outputs it to the oscilloscope port. The result is as follows: Figure 5 As shown in the figure, the positive pulse peak of the coupled ESD pulse is +34.5V, and the negative pulse peak is -11.2V. The coupled ESD pulse rise time is 964ps, which shows the characteristics of an ESD pulse waveform.

[0069] Implementation Plan 5

[0070] The positive pulse peak value of the coupled electrostatic discharge pulse in the fourth implementation scheme is 34.5V, and the negative pulse peak value is -11.2V. This pulse can effectively trigger the action of some high-precision micro-signal relays and pulse suppression components. The applied circuit can be as follows: Figure 6 As shown. Figure 6 In the inductively coupled pulse-triggered switch circuit shown, a transient electromagnetic pulse coupled between input channels 1 and 2 is transmitted via inductive coupling to the relay circuit, triggering bidirectional TVS diode U1 to conduct. After U1 conducts, the relay maintains its initial state, with no current flowing. This initiates the switching action, controlling the circuit's on / off state. After the pulse energy is released, U1 returns to a high-impedance state, and the relay resumes its initial state.

Claims

1. An electrostatic discharge inductive coupling device, comprising an electrostatic pulse generating unit, an electrostatic discharge inductive coupling unit, and / or a verification and expansion application unit, wherein the electrostatic pulse generating unit is connected to the electrostatic discharge inductive coupling unit, and the electrostatic discharge inductive coupling unit is connected to the verification and expansion application unit, wherein: The electrostatic pulse generating unit includes a charging unit and a discharging unit located in the shielding box, wherein: The charging unit includes a high-voltage charging power supply, a charging switch, a charging resistor, and a charging and discharging capacitor; the discharging unit includes a charging and discharging capacitor, a discharge resistor, a discharge switch, and an electrostatic pulse output port; the high-voltage charging power supply is connected in series with the discharge switch and the discharge resistor and then connected to the charging and discharging capacitor, thereby forming a charging circuit; one end of the charging and discharging capacitor is connected in series with the discharge resistor, the discharge switch, and the electrostatic pulse output port, and then passes through the shielding box connection port 1 on the shielding box to be connected to the electrostatic discharge inductive coupling unit, and the other end of the charging and discharging capacitor passes through the shielding box connection port 2 on the shielding box to be connected to the electrostatic discharge inductive coupling unit; The electrostatic discharge inductive coupling unit includes an electrostatic discharge pulse injection port, a coupling loop waveform parameter adjustment unit, an inductive coupling loop, a discharge rate adjustment unit, and an inductive coupling receiving loop; The input end of the electrostatic discharge pulse injection port is connected to the electrostatic pulse output port, and the output end of the electrostatic discharge pulse injection port is connected in series with the coupling loop waveform parameter adjustment unit, the inductive coupling loop and the discharge rate adjustment unit and then connected to the other end of the charging and discharging capacitor. The inductive coupling receiving circuit couples the electrostatic discharge pulse output by the loop waveform parameter adjustment unit through the inductive coupling circuit, and outputs the coupled electrostatic discharge pulse to the verification and expansion application unit; Or the electrostatic discharge inductive coupling unit includes an electrostatic discharge pulse injection port, a coupling loop waveform parameter adjustment unit, an inductive coupling loop, a discharge rate adjustment unit, and a test sample circuit; The input end of the electrostatic discharge pulse injection port is connected to the electrostatic pulse output port, and the output end of the electrostatic discharge pulse injection port is connected in series with the coupling loop waveform parameter adjustment unit, the inductive coupling loop and the discharge rate adjustment unit and then connected to the other end of the charging and discharging capacitor. The test sample circuit is coupled to the electrostatic discharge pulse output by the coupling loop waveform parameter adjustment unit through the inductive coupling loop.

2. An electrostatic discharge inductive coupling device according to claim 1, characterized in that: The shielding box is connected to a reference grounding port, and the reference grounding port is a common reference grounding point of the electrostatic discharge inductive coupling device.

3. The electrostatic discharge inductive coupling device according to claim 1, wherein: The electrostatic pulse output port and the electric discharge pulse injection port are connected by a threaded structure.

4. The electrostatic discharge inductive coupling device according to claim 1, wherein: The interior of the electrostatic pulse output port is a metal conductor and the exterior is an insulating layer, and the thickness of the insulating layer is greater than 2 cm.

5. The electrostatic discharge inductive coupling device according to claim 1, wherein: The shielding box connection port 1 and the shielding box connection port 2 are fixed support structures made of insulating material.

6. The electrostatic discharge inductive coupling device according to claim 1, wherein: The inner layer of the electrostatic discharge pulse injection port is made of a hard wire with high conductivity and low ferromagnetism, and the outer layer is made of a hard insulating material with a surface resistivity greater than 1×10 12 Ω / m 2 , and the thickness of the outer insulation layer is greater than 5mm and the insulation resistance is greater than 50MΩ.

7. The electrostatic discharge inductive coupling device according to claim 1, wherein: The coupling loop waveform parameter adjustment unit is a circuit or a separate component.

8. The electrostatic discharge inductive coupling device according to claim 1, wherein: The inductive coupling loop is a planar or curved structural member of various shapes made of a high-conductivity, non-ferromagnetic metal wire with an insulating layer. The impedance of the insulating layer is greater than 5MΩ and the thickness of the insulating layer is greater than 30mm.

9. The electrostatic discharge inductive coupling device according to claim 1, wherein: The discharge rate adjustment unit is implemented by a series resistor.

10. The electrostatic discharge inductive coupling device according to claim 1, characterized in that: The verification and extended application unit includes an inductive coupling waveform verification port, a transient electromagnetic pulse rapid verification device, and a functional application expansion port, wherein: The inductive coupling waveform verification port is an instrument for verifying the output of electrostatic discharge pulses; The transient electromagnetic pulse rapid verification equipment is a pulse output response device; The functional application expansion port is a pulse expansion application debugging port.

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