Electrostatic discharge test equipment and electrostatic discharge test system

Abstract

The utility model discloses an electrostatic discharge test device and an electrostatic discharge test system, the electrostatic discharge test device comprises a test platform, an electrostatic discharge generator and an oscilloscope, the test platform is used for placing an automobile seat to be tested; a travel switch in a safety belt buckle in the to-be-tested automobile seat is connected with the to-be-tested instrument desk through a lead; the electrostatic discharge generator is connected with the travel switch; the oscilloscope is connected with the test platform, the grounding wire of the to-be-tested automobile seat and the to-be-tested instrument desk, and is used for obtaining and displaying a grounding wire voltage waveform signal and an instrument desk voltage waveform signal. The electrostatic discharge test equipment provided by the utility model can realize the ground discharge detection of the to-be-tested automobile seat, and can visually obtain the electrostatic induction voltage of the lead which is spatially coupled to the position between the travel switch and the to-be-tested instrument desk at the moment of electrostatic discharge, and the influence degree of the voltage on the to-be-tested instrument desk.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to an electrostatic discharge testing device and an electrostatic discharge testing system. Background Technology

[0002] In dry climates, especially during autumn and winter, drivers are highly susceptible to static electricity, which can also be generated between the driver and the car seat, or between the seatbelt and the car seat, due to friction, contact, and separation. If the seat assembly has poor electrostatic discharge capability, static charge will accumulate, particularly at the seatbelt buckle. When a certain voltage is reached, electrostatic air breakdown will occur. The electrostatic current will travel along the lead between the limit switch and the instrument panel under test. Currently, the electronic circuitry of the instrument panel under test is highly integrated, which also means a lower withstand voltage level. Repeated electrostatic discharges can cause potential damage to the instrument panel under test, even leading to partial functional failure. Currently, the electrostatic discharge level of a car seat is mainly measured by testing its grounding resistance.

[0003] In the existing technology, the method of measuring the electrostatic discharge level of a car seat by testing the grounding resistance of the car seat does not take into account that the actual transient electrostatic discharge is a discharge to ground through reactance, and also ignores the influence of transient electrostatic discharge on the spatial electric field coupling of adjacent wiring harnesses. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the first objective of this invention is to provide an electrostatic discharge testing device capable of detecting the discharge to ground of a car seat under test. It can directly determine the electrostatic induction voltage induced by the electrostatic discharge instantaneously through spatial coupling to the lead wire between the limit switch and the instrument panel under test, as well as the degree of influence of this voltage on the instrument panel under test.

[0005] The second objective of this invention is to provide an electrostatic discharge testing system.

[0006] To achieve the above objectives, a first aspect of this utility model provides an electrostatic discharge testing device, comprising: a test platform for placing a car seat to be tested, wherein a limit switch in the seat belt buckle of the car seat to be tested is connected to the instrument panel to be tested via a lead wire; an electrostatic discharge generator connected to the limit switch; and an oscilloscope connected to the test platform, the grounding wire of the car seat to be tested, and the instrument panel to be tested, for acquiring and displaying the grounding wire voltage waveform signal and the instrument panel voltage waveform signal.

[0007] The electrostatic discharge testing device proposed in this embodiment of the invention connects an electrostatic discharge generator to a limit switch to simulate the electrostatic discharge process. An oscilloscope is used to acquire and display the grounding voltage waveform of the car seat under test and the voltage waveform of the dashboard. During each transient electrostatic discharge test, the non-purely resistive nature of the transient electrostatic discharge circuit is considered, enabling the detection of the car seat's discharge to ground, facilitating the analysis of the car seat's electrostatic discharge capability. Simultaneously, the device displays the electrostatic voltage waveform of the grounding wire of the limit switch of the car seat under test and the electrostatic voltage waveform transmitted from the limit switch to the dashboard under test. This allows analysis of the electrostatic induction voltage coupled to the lead between the limit switch and the dashboard during the instantaneous electrostatic discharge, facilitating the analysis of whether the accumulated electrostatic charge conducted to the dashboard affects itself, providing a reference for subsequent testing of the dashboard's interface pin anti-static voltage capability. Furthermore, the electrostatic discharge testing device of this embodiment of the invention is highly operable and allows for repeatable electrostatic discharge testing.

[0008] In some embodiments of this utility model, the insulation test platform includes: a first insulating plane; a metal reference plane disposed on the first insulating plane, the metal reference plane being grounded, and the metal reference plane being adapted to be connected to the grounding wire of the vehicle seat to be tested; and a second insulating plane disposed on the metal reference plane, adapted to place the vehicle seat to be tested.

[0009] In some embodiments of this utility model, the oscilloscope includes: a first test channel connected to the test platform and the grounding wire, used to acquire the grounding wire voltage waveform signal; a second test channel connected to the instrument panel under test, used to acquire the instrument panel voltage waveform signal; and a display unit connected to the first test channel and the second test channel.

[0010] In some embodiments of this utility model, the first test channel includes: a first voltage waveform signal detection line connected to the ground wire; and a second voltage waveform signal detection line connected to the metal reference plane.

[0011] In some embodiments of this utility model, the first end of the limit switch is connected to the first end of the instrument panel under test via a first lead, and the second end of the limit switch is connected to the second end of the instrument panel under test via a second lead; the second test channel includes: a third voltage waveform signal detection line, which is connected to the first lead; and a fourth voltage waveform signal detection line, which is connected to the second lead.

[0012] In some embodiments of this utility model, the electrostatic discharge generator includes: an electrostatic discharge host for simulating an electrostatic discharge process; and an electrostatic discharge gun, which, together with the electrostatic discharge host, is used to release static electricity to at least one of the seat belt buckle and the seat belt plug.

[0013] In some embodiments of this utility model, the electrostatic discharge test equipment further includes a controller, which is connected to the oscilloscope and is used to generate test results based on the grounding wire voltage waveform signal and the instrument panel voltage waveform signal.

[0014] In some embodiments of this utility model, the electrostatic discharge generator, the oscilloscope, and the controller are all grounded.

[0015] To achieve the above objectives, a second aspect of this utility model provides an electrostatic discharge testing system, comprising: a car seat assembly to be tested; and the electrostatic discharge testing device described in any of the above embodiments, wherein the electrostatic discharge testing device is connected to the car seat assembly to be tested.

[0016] According to the electrostatic discharge testing system proposed in this embodiment, the car seat assembly to be tested is connected to the electrostatic discharge testing equipment. The electrostatic discharge testing equipment of this embodiment performs electrostatic discharge testing on the car seat to be tested, which can realize the ground discharge detection of the car seat to be tested. It can accurately test and display the electrostatic voltage waveform of the grounding wire of the limit switch in the car seat to be tested and the electrostatic voltage waveform transmitted from the limit switch to the dashboard to be tested. Furthermore, it can analyze the electrostatic induction voltage that is coupled to the lead wire between the limit switch and the dashboard to be tested during the instantaneous electrostatic discharge, which is convenient for analyzing the electrostatic discharge capability of the car seat to be tested.

[0017] In some embodiments of this utility model, the vehicle seat assembly to be tested includes: a vehicle seat to be tested, wherein the seat belt buckle of the vehicle seat to be tested has a built-in limit switch, and the limit switch is electrically connected to the electrostatic discharge test equipment; and a dashboard to be tested, wherein the dashboard to be tested is electrically connected to the limit switch and the electrostatic discharge test equipment.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a block diagram of an electrostatic discharge testing device according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of an electrostatic discharge testing device according to an embodiment of the present invention;

[0022] Figure 3 This is a block diagram of an electrostatic discharge testing system according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of an electrostatic discharge testing system according to an embodiment of the present invention;

[0024] Figure 5 This is a block diagram of a car seat assembly to be tested according to an embodiment of the present invention;

[0025] Figure 6 This is a flowchart of an electrostatic discharge test method according to an embodiment of the present invention.

[0026] Figure label:

[0027] 100 electrostatic discharge test equipment; 200 automotive seat assemblies to be tested;

[0028] Electrostatic discharge test system 1000;

[0029] Test platform 1001, electrostatic discharge generator 1002, oscilloscope 1003;

[0030] 1. Seatbelt buckle of the car seat under test; 2. Car seat under test; 3. Seat mounting structure; 4. Grounding wire of the car seat under test; 5. Metal reference plane; 6. First voltage waveform signal detection line; 7. Grounding wire of metal reference plane; 8. Ground; 9. First insulating plane; 10. Oscilloscope probe one; 11. Display unit; 12. Oscilloscope probe two; 13. Second voltage waveform signal detection line; 14. Grounding wire of metal reference plane; 15. Fourth voltage waveform signal detection line; 16. Third voltage waveform signal detection line; 17. Instrument panel under test; 18. Limit switch; 19. First lead; 20. Second lead; 21. Second insulating plane; 22. Electrostatic discharge gun; 23. Electrostatic discharge gun connection wire; 24. Electrostatic discharge host; 25. Grounding wire of electrostatic discharge gun; 26. Attenuator. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0032] In dry climates, especially during autumn and winter, drivers are highly susceptible to static electricity, which can also be generated between the driver and the car seat, or between the seatbelt and the car seat, due to friction, contact, and separation. If the seat assembly has poor electrostatic discharge capability, static charge can accumulate, particularly at the seatbelt buckle. When a certain voltage is reached, electrostatic air breakdown occurs, and the electrostatic current travels along the limit switch built into the seatbelt buckle, through the lead between the limit switch and the instrument panel under test. Currently, the electronic circuitry of the instrument panel under test is highly integrated, which also means a lower withstand voltage level. Repeated electrostatic discharges can cause potential damage to the instrument panel, even leading to partial functional failure. To accurately test the electrostatic discharge capability of car seats and the impact of electrostatic discharge on the instrument panel under test, this invention proposes an electrostatic discharge testing device.

[0033] The following is for reference. Figures 1-2 This invention describes an electrostatic discharge testing device according to an embodiment of the present invention.

[0034] In some embodiments of this utility model, an electrostatic discharge testing device is proposed. Figure 1 This is a block diagram of an electrostatic discharge testing device according to an embodiment of the present invention, as shown below. Figure 1 As shown, the electrostatic discharge test equipment 100 includes a test platform 1001, an electrostatic discharge generator 1002, and an oscilloscope 1003. The test platform 1001 is used to place the car seat to be tested. The limit switch in the seat belt buckle of the car seat to be tested is connected to the instrument panel to be tested via a lead wire. The electrostatic discharge generator 1002 is connected to the limit switch. The oscilloscope 1003 is connected to the test platform 1001, the grounding wire of the car seat to be tested, and the instrument panel to be tested, respectively, and is used to acquire and display the grounding wire voltage waveform signal and the instrument panel voltage waveform signal.

[0035] According to the electrostatic discharge testing device 100 proposed in this embodiment, an electrostatic discharge generator 1002 is connected to a limit switch to simulate the electrostatic discharge process. An oscilloscope 1003 acquires and displays the grounding voltage waveform signal of the car seat under test and the dashboard voltage waveform signal. During each transient electrostatic discharge test, the non-purely resistive nature of the transient electrostatic discharge circuit is considered, enabling the detection of the car seat's discharge to ground, facilitating the analysis of the car seat's electrostatic discharge capability. Simultaneously, the electrostatic voltage waveform of the limit switch's grounding wire and the electrostatic voltage waveform transmitted from the limit switch to the dashboard under test are displayed. This allows analysis of the electrostatic induction voltage coupled to the lead between the limit switch and the dashboard during the instantaneous electrostatic discharge, facilitating the analysis of whether the accumulated electrostatic charge conducted to the dashboard affects itself, providing a reference for subsequent testing of the dashboard's interface pin anti-static voltage capability. Furthermore, the electrostatic discharge testing device 100 of this embodiment is highly operable and allows for repeatable electrostatic discharge testing.

[0036] Figure 2 This is a schematic diagram of an electrostatic discharge testing device according to an embodiment of the present invention, as shown below. Figure 2 As shown, the insulation test platform 1001 includes a first insulating plane 9, a metal reference plane 5, and a second insulating plane 21. The metal reference plane 5 is disposed on the first insulating plane 9, grounded 8, and adapted to be connected to the grounding wire 4 of the car seat 2 to be tested. The second insulating plane 21 is disposed on the metal reference plane 5 and adapted to place the car seat 2 to be tested.

[0037] In one embodiment of this utility model, the first insulating plane 9 is an insulated wooden table. A metal reference plane 5 is set on the first insulating plane 9. The metal reference plane 5 is grounded through the metal reference plane grounding wire 7 and the metal reference plane grounding wire 14. The grounding resistance of the two grounding wires should preferably be less than 2.5mΩ. The second insulating plane 21 can be an insulating pad with a thickness of (50±5)mm. Each side of the insulating pad should be at least 20mm larger than the outer dimensions of the car seat 2 to be tested to facilitate the placement of the car seat 2 to be tested.

[0038] In some embodiments of this utility model, the oscilloscope 1003 includes a first test channel and a second test channel. The first test channel is connected to the test platform 1001 and the grounding wire 4 and is used to acquire the voltage waveform signal of the grounding wire 4. The second test channel is connected to the instrument panel 17 under test and is used to acquire the voltage waveform signal of the instrument panel 17. The display unit 11 is connected to the first test channel and the second test channel.

[0039] In some embodiments of this utility model, the first test channel includes a first voltage waveform signal detection line 6 and a second voltage waveform signal detection line 13. The first voltage waveform signal detection line 6 is connected to the grounding line 4 and is used to acquire the voltage waveform signal of the metal reference plane 5. The second voltage waveform signal detection line 13 is connected to the metal reference plane 5 and is used to acquire the voltage waveform signal of the grounding line 4. The voltage waveform signal acquired by the oscilloscope 1003 through the second voltage waveform signal detection line 13 to the metal reference plane 5 allows for intuitive analysis of the positive and negative voltage and voltage value of static electricity, qualitatively and quantitatively evaluating the electrostatic discharge capability of the car seat 2 under test. The second test channel includes a third voltage waveform signal detection line 16 and a fourth voltage waveform signal detection line 15. The third voltage waveform signal detection line 16 is connected to the first lead 19; the fourth voltage waveform signal detection line 15 is connected to the second lead 20.

[0040] The limit switch 18 and the instrument panel under test 17 are connected by a first lead 19 and a second lead 20. The first end of the limit switch 18 is connected to the first end of the instrument panel under test 17 via the first lead 19, and the second end of the limit switch 18 is connected to the second end of the instrument panel under test 17 via the second lead 20. Specifically, the limit switch 18 is connected to the corresponding interface pin of the instrument panel under test 17 via the first lead 19 and the second lead 20.

[0041] Specifically, the oscilloscope 1003 can be a high-speed bandwidth oscilloscope with a bandwidth of not less than 1 GHz. Each channel is equipped with at least a 20 dB attenuator. The first probe 10 of the oscilloscope 1003 is connected to the ground wire 4 of the car seat 2 under test through the first voltage waveform signal detection line 6. The first probe 10 of the oscilloscope 1003 is connected to the metal reference plane 5 through the second voltage waveform signal detection line 13. The ground point of the metal reference plane 5 and the ground wire 4 of the car seat under test are at least 1.7 m apart. The second probe 12 of the oscilloscope 1003 is connected to the second lead 20 between the limit switch 18 and the instrument panel 17 under test through the fourth voltage waveform signal detection line 15. The second probe 12 of the oscilloscope 1003 is connected to the first lead 19 between the limit switch 18 and the instrument panel 17 under test through the third voltage waveform signal detection line 16.

[0042] Furthermore, the two test channels of the oscilloscope 1003 monitor the voltage waveform of the grounding wire 4 of the car seat under test and the voltage waveform of the lead wire between the limit switch 18 and the instrument panel 17 under test, respectively. By comparing the peak values ​​of these two test voltages with the set voltage value of the static electricity discharged by the electrostatic discharge gun 22, the electrostatic discharge capability of the car seat 2 under test can be analyzed. At the same time, based on the anti-static voltage capability of the interface pins of the instrument panel 17 under test, it can also be analyzed whether the accumulation of static charge conducted to the instrument panel 17 under test has an impact on itself.

[0043] In some embodiments of this utility model, the electrostatic discharge generator 1002 includes an electrostatic discharge host 24 and an electrostatic discharge gun 22. The electrostatic discharge host 24 is used to simulate the electrostatic discharge process, and the electrostatic discharge gun 22 and the electrostatic discharge host 24 are used to release static electricity to at least one of the seat belt buckle and the seat belt plug.

[0044] The electrostatic discharge gun 22 is connected to the electrostatic discharge host 24 via the electrostatic discharge gun connection line 23, and the electrostatic discharge gun 22 is reliably grounded via the electrostatic discharge gun grounding wire 25. The electrostatic discharge generator 1002 can be set to discharge voltages of ±4kV, ±6kV, ±8kV, ±15kV, ±25kV, etc., and the discharge voltage of the electrostatic discharge generator 1002 can be set as needed; no limitation is made here. Furthermore, the electrostatic discharge host 24 should not be placed on a desktop.

[0045] Understandably, nanosecond-level electrostatic waveform changes cause the grounding wire to exhibit reactive characteristics. Simultaneously, the instantaneous electrostatic discharge generates an electromagnetic field, creating a spatial coupling effect on surrounding transmission lines. Specifically, the electrostatic discharge host 24 is used to simulate the electrostatic discharge process, taking into account that the transient electrostatic discharge circuit is not purely resistive, thus enabling more accurate test results.

[0046] In some embodiments of this invention, the electrostatic discharge testing equipment 100 further includes a controller connected to an oscilloscope 1003, used to generate test results based on the grounding wire voltage waveform signal and the instrument panel voltage waveform signal. The controller is not shown in the figure.

[0047] Specifically, the controller is connected to the oscilloscope 1003 and can be used to record the voltage waveform signal acquired by the oscilloscope 1003, and to further process and analyze the test results.

[0048] In some embodiments of this utility model, the electrostatic discharge generator 1002, the oscilloscope 1003 and the controller are all grounded 8.

[0049] In some embodiments of this utility model, an electrostatic discharge testing system 1000 is also proposed, such as... Figure 3The diagram shown is a block diagram of an electrostatic discharge test system according to an embodiment of the present invention. The electrostatic discharge test system 1000 includes a car seat assembly 200 to be tested and an electrostatic discharge test device 100 of any of the above embodiments. The electrostatic discharge test device 100 is connected to the car seat assembly 200 to be tested.

[0050] Figure 4 This is a schematic diagram of an electrostatic discharge testing system according to an embodiment of the present invention, as shown below. Figure 4 As shown, the car seat 2 to be tested is placed on the second insulating plane 21 of the electrostatic discharge test equipment 100 through the seat mounting structure 3.

[0051] According to the electrostatic discharge test system 1000 proposed in this embodiment of the present invention, the car seat assembly 200 to be tested is connected to the electrostatic discharge test equipment 100. The electrostatic discharge test equipment 100 of this embodiment of the present invention performs electrostatic discharge test on the car seat 2 to be tested, which can realize the ground discharge detection of the car seat 2 to be tested, accurately test and display the electrostatic voltage waveform of the grounding wire of the limit switch 18 of the car seat 2 to be tested and the electrostatic voltage waveform transmitted from the limit switch 18 to the instrument panel 17 to be tested, and further analyze the electrostatic induced voltage of the lead wire between the limit switch 18 and the instrument panel 17 to be tested through space during the electrostatic discharge, which is convenient for analyzing the electrostatic discharge capability of the car seat 2 to be tested.

[0052] In some embodiments of this utility model, such as Figure 5 The diagram shown is a block diagram of a car seat assembly under test according to an embodiment of the present invention. The car seat assembly under test 200 includes a car seat 2 under test and a dashboard 17 under test. The seat belt buckle in the car seat 2 under test has a built-in limit switch 18, which is electrically connected to the electrostatic discharge test equipment 100. The dashboard 17 under test is electrically connected to the limit switch 18 and the electrostatic discharge test equipment 100.

[0053] To test the electrostatic discharge capability of car seats while considering the need to avoid damage to the vehicle's instrument cluster caused by static electricity, this invention proposes an electrostatic discharge test method, such as... Figure 6 The diagram shown is a flowchart of an electrostatic discharge test method according to an embodiment of the present invention. The electrostatic discharge test method includes at least steps S1-S5, as detailed below.

[0054] S1, set the voltage value of the electrostatic discharge generator.

[0055] First, place the car seat to be tested on the test platform. The car seat is connected to the metal reference plane via a grounding wire. The limit switch built into the seat belt buckle is connected to the dashboard to be tested as required. Then, set an appropriate voltage value for the electrostatic discharge generator.

[0056] S2, electrostatic discharge test begins.

[0057] The seatbelt plug and buckle were discharged using an electrostatic discharge gun according to a standard electrostatic discharge model. Specifically, the metal plug of the seatbelt was subjected to contact discharge at ±4kV, ±6kV, ±8kV, and ±15kV, respectively, and the non-metallic shell of the seatbelt buckle was subjected to air discharge at ±6kV, ±8kV, ±15kV, and ±25kV, respectively. The electrostatic voltage waveform was detected using two channels of an oscilloscope according to the test setup.

[0058] S3, determine whether the sum of the peak voltage of channel 1 and the peak voltage of channel 2 matches the set value. If yes, proceed to step S4; otherwise, return to step S2. Here, channel 1 is the first test channel; channel 2 is the second test channel.

[0059] S4, the absolute value of the peak voltage of channel 2 is less than the set value by 10%.

[0060] Determine if the absolute value of the peak voltage of channel 2 is less than 10% of the set value. If yes, proceed to S5; otherwise, return to S2.

[0061] S5, electrostatic discharge test is complete.

[0062] If the sum of the peak voltage of channel 1 and the peak voltage of channel 2 matches the set value of the electrostatic discharge generator and the absolute value of the peak voltage of channel 2 is less than 10% of the set value of the electrostatic discharge generator, then the electrostatic discharge capability of the car seat under test is deemed to meet the requirements, and the electrostatic voltage of the instrument panel under test to channel 2 is also completely acceptable.

[0063] The electrostatic discharge test method proposed in this embodiment starts from the actual electrostatic discharge. It uses a standard current waveform and a defined electrostatic discharge generator 1002 to simulate the electrostatic discharge process. An oscilloscope 1003 measures the electrostatic voltage waveform of the grounding wire 4 of the car seat under test, allowing for a direct analysis of the voltage sign and value, and a qualitative and quantitative evaluation of the electrostatic discharge capability of the car seat 2 under test. Simultaneously, the oscilloscope 1003 also monitors the electrostatic voltage waveform of the lead wire between the limit switch 18 and the instrument panel 17 under test, enabling analysis of the electrostatic induced voltage coupled through space to the lead wire between the limit switch 18 and the instrument panel 17 during electrostatic discharge, and the degree of influence of this voltage on the instrument panel 17. Furthermore, this test method can test the different electrostatic voltage values ​​borne by the interface pins of the instrument panel 17 under different electrostatic discharge capabilities, providing data support for optimizing hardware protection circuits. This test method also features good repeatability and strong operability.

[0064] Other configurations and operations of the electrostatic discharge testing device 100 and electrostatic discharge testing system 1000 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0066] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrostatic discharge testing device, characterized in that, include: The test platform is used to place the car seat to be tested, and the limit switch in the seat belt buckle of the car seat to be tested is connected to the dashboard to be tested via a lead wire; An electrostatic discharge generator, wherein the electrostatic discharge generator is connected to the limit switch; An oscilloscope is connected to the test platform, the grounding wire of the car seat under test, and the instrument panel under test, respectively, and is used to acquire and display the grounding wire voltage waveform signal and the instrument panel voltage waveform signal.

2. The electrostatic discharge testing equipment according to claim 1, characterized in that, The testing platform includes: First insulating plane; A metal reference plane is disposed on the first insulating plane, the metal reference plane is grounded, and the metal reference plane is adapted to be connected to the grounding wire of the vehicle seat under test; The second insulating plane is disposed on the metal reference plane and is suitable for placing the car seat to be tested.

3. The electrostatic discharge testing equipment according to claim 2, characterized in that, The oscilloscope includes: The first test channel is connected to the test platform and the grounding wire, and is used to acquire the grounding wire voltage waveform signal. The second test channel is connected to the instrument panel under test and is used to acquire the voltage waveform signal of the instrument panel. The display unit is connected to the first test channel and the second test channel.

4. The electrostatic discharge testing equipment according to claim 3, characterized in that, The first test channel includes: The first voltage waveform signal detection line is connected to the grounding line; The second voltage waveform signal detection line is connected to the metal reference plane.

5. The electrostatic discharge testing equipment according to claim 3, characterized in that, The first end of the limit switch is connected to the first end of the instrument panel under test via a first lead, and the second end of the limit switch is connected to the second end of the instrument panel under test via a second lead. The second test channel includes: The third voltage waveform signal detection line is connected to the first lead; A fourth voltage waveform signal detection line is connected to the second lead.

6. The electrostatic discharge testing equipment according to claim 1, characterized in that, The electrostatic discharge generator includes: An electrostatic discharge host, which is used to simulate the electrostatic discharge process; An electrostatic discharge gun, together with the electrostatic discharge host, is used to release static electricity to at least one of the seat belt buckle and the seat belt plug.

7. The electrostatic discharge testing equipment according to any one of claims 1-6, characterized in that, Also includes: A controller, connected to the oscilloscope, is used to generate test results based on the grounding voltage waveform signal and the instrument panel voltage waveform signal.

8. The electrostatic discharge testing equipment according to claim 7, characterized in that, The electrostatic discharge generator, the oscilloscope, and the controller are all grounded.

9. An electrostatic discharge testing system, characterized in that, include: The car seat assembly to be tested; The electrostatic discharge testing device according to any one of claims 1-8, wherein the electrostatic discharge testing device is connected to the vehicle seat assembly to be tested.

10. The electrostatic discharge testing system according to claim 9, characterized in that, The vehicle seat assembly to be tested includes: The vehicle seat to be tested has a limit switch built into the seat belt buckle, and the limit switch is electrically connected to the electrostatic discharge test equipment. The instrument platform to be tested is electrically connected to the limit switch and the electrostatic discharge test equipment.

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