Automatic static electricity testing device

Abstract

The utility model discloses an automatic static electricity testing device, which comprises a simulation platform, a static electricity generator, a first power part, a driving assembly, a discharge wire, a discharge brush and a second power part, and is characterized in that the first power part is mounted on the static electricity generator; the power end of the driving assembly is connected with the electrostatic generator. The driving assembly can drive the electrostatic generator to move. One end of the discharge wire is connected with a connecting port of the tested equipment, and a discharge point is formed at the other end; the discharging brush is installed above the discharging point and grounded through a first wire, the discharging brush has a first state and a second state, and in the first state, the discharging brush makes contact with the discharging point; in the second state, the discharge brush is separated from the discharge point; the second power piece is connected with the discharging brush and used for driving the discharging brush to be switched between the first state and the second state. According to the invention, the position of the electrostatic generator can be accurately moved, the comprehensiveness of the electrostatic test of the tested equipment is ensured, and timely discharge after electrostatic discharge can be ensured, so that the accuracy of the test is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of testing electrostatic devices, and in particular to an automatic electrostatic device testing device. BACKGROUND

[0002] With the popularity of electronic products and the continuous progress of technology, it is particularly important to ensure the electromagnetic compatibility (EMC) of products, because poor electromagnetic compatibility not only affects the normal operation of the device itself, but also may cause interference to other electronic devices in the surrounding environment. Static electricity does not affect other devices, and is related to the quality, reliability and service life of itself. Electrostatic discharge (ESD) testing, as a key link in electromagnetic compatibility detection, is crucial for evaluating the performance of electronic products in a static environment.

[0003] For example, the automatic electrostatic testing device disclosed in application No. CN202021663394.6 changes the electrostatic discharge position through the movement of three drive units, but after the measured device releases static electricity, the measured device needs a recovery process, which requires the measured device to discharge electricity. This part is missing, and the general static mode device cannot be controlled by an external control unit to generate static electricity, so the use is limited. Practical new type content

[0004] The purpose of the embodiment of the present application is to provide an automatic electrostatic device testing device that can accurately move the position of the static electricity generator, ensure the comprehensiveness of the static electricity testing of the measured device, and ensure timely discharge of electricity after releasing static electricity, thereby ensuring the accuracy of the test, avoiding the randomness and randomness of manual test operation, and improving the reproducibility of test problems.

[0005] To achieve the above purpose, the following technical solutions are adopted:

[0006] On the one hand, an automatic electrostatic device testing device is provided, comprising:

[0007] A simulation platform for placing a measured device;

[0008] A static electricity generator for releasing static electricity to the measured device;

[0009] A first power member mounted on the static electricity generator, the first power member being used to start the static electricity generator to release static electricity;

[0010] A drive assembly having a power end connected to the static electricity generator, the drive assembly being capable of driving the static electricity generator to move relative to the measured device;

[0011] A discharge lead having one end connected to a connection port of the measured device and the other end forming a discharge point;

[0012] A discharge brush is movably mounted above the discharge point and connected to the ground reference plane through a first wire, the discharge brush having a first state and a second state, in the first state, the discharge brush is in contact with the discharge point; in the second state, the discharge brush is separated from the discharge point;

[0013] A second power element is connected to the discharge brush, and the second power element is used to drive the discharge brush to switch between the first state and the second state.

[0014] Further, the first power element and the second power element are arranged as follows: after the first power element acts, the second power element drives the discharge brush to switch to the first state, and then drives the discharge brush to reset to the second state, and the above process is repeated.

[0015] Further, the driving assembly is arranged as follows: after the first power element and the second power element act repeatedly for N times, the driving assembly drives the electrostatic generator to move to the next test position, and the first power element and the second power element continue to act, wherein 8≤N≤15.

[0016] Further, the distance between two adjacent test positions on the device under test is 1-6mm.

[0017] Further, the electrostatic generator releases static electricity for 1-2s.

[0018] Further, the simulation platform comprises a lowermost insulating bottom plate, a coupling plate arranged above the insulating bottom plate, and an insulating sheet arranged on the coupling plate, the coupling plate is connected to the ground reference plane through a second wire, the first wire is connected to the ground reference plane, and two 470KΩ resistors are connected in series on the first wire and the second wire.

[0019] Further, the thickness of the coupling plate is >0.25mm, and the thickness of the insulating sheet is between 0.4-0.6mm.

[0020] Further, the driving assembly comprises at least a first driving unit, a second driving unit and a third driving unit, the first driving unit is configured to drive the electrostatic generator to move along the X-axis direction, the second driving unit is configured to drive the electrostatic generator to move along the Y-axis direction, and the third driving unit is configured to drive the electrostatic generator to move along the Z-axis direction.

[0021] Further, the first power element is a first steering wheel, and the electrostatic generator is an electrostatic gun, a rotating rod is connected to the power end of the first steering wheel, the rotating rod can rotate and press the switch of the electrostatic gun under the drive of the first steering wheel, thereby starting the electrostatic gun to release static electricity.

[0022] Further, the second power member is a second steering engine, a rotating part is connected to a power end of the second steering engine, and the discharge brush is connected to the rotating part.

[0023] The application has the following advantages: during the test, the device under test is first placed on the simulation platform, and then connected to one end of the discharge lead through the connecting port, and the other end is provided with a discharge point for discharging static electricity. The static electricity generator serves as a static electricity source and can release static electricity to the device under test according to preset parameters through the driving of the first power member. At the same time, the driving assembly accurately controls the moving path and speed of the static electricity generator, ensuring that static electricity can cover all key areas of the device under test, thereby realizing comprehensive static electricity test. What is particularly important is that after the static electricity release is completed, the second power member quickly responds to drive the discharge brush to switch from the second state of separation from the discharge point to the first state of contact. When the discharge brush is in the first state, it serves as a grounded conductor and is in close contact with the discharge point of the device under test, forming a low-impedance static electricity discharge path, so that the static electricity residue on the device under test can quickly and safely flow to the ground reference plane. This design effectively avoids the adverse effects of static electricity residue on subsequent testing or operation of the device. BRIEF DESCRIPTION OF DRAWINGS

[0024] The application will be further described in detail below according to the drawings and embodiments.

[0025] Figure 1 It is a perspective view of the automatic test static electricity device according to the embodiment of the application;

[0026] Figure 2 It is an assembly view of the static electricity generator and the first power member according to the embodiment of the application;

[0027] Figure 3 It is an assembly view of the second power member and the discharge brush according to the embodiment of the application;

[0028] Figure 4 It is a sectional view of the simulation platform according to the embodiment of the application.

[0029] In the figure: 1, simulation platform; 101, insulating bottom plate; 102, coupling plate; 103, insulating sheet; 2, static electricity generator; 201, switch; 3, first power member; 301, rotating rod; 4, driving assembly; 5, discharge lead; 6, discharge point; 7, discharge brush; 8, second power member; 801, rotating part; 9, first lead; 10, device under test; 11, second lead; 12, ground reference plane. DETAILED DESCRIPTION

[0030] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects reached more clear, the technical solutions of the embodiments of the present application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless explicitly defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] As Figures 1-4As shown, the embodiment provides an automatic electrostatic testing device, which comprises a simulation platform 1, an electrostatic generator 2, a first power component 3, a driving assembly 4, a discharge lead 5, a discharge brush 7, and a second power component 8. The simulation platform 1 is used to place a device under test 10. The electrostatic generator 2 is used to release electrostatic to the device under test 10. The first power component 3 is installed on the electrostatic generator 2, and is used to start the electrostatic generator 2 to release electrostatic. The driving assembly 4 is connected to the electrostatic generator 2 at the power end, and can drive the electrostatic generator 2 to move relative to the device under test 10. One end of the discharge lead 5 is connected to a connection port of the device under test 10, and the other end forms a discharge point 6. The discharge brush 7 is movably installed above the discharge point 6, and is connected to a ground reference plane 12 through a first lead 9. The discharge brush 7 has a first state and a second state. In the first state, the discharge brush 7 is in contact with the discharge point 6. In the second state, the discharge brush 7 is separated from the discharge point 6. The second power component 8 is connected to the discharge brush 7, and is used to drive the discharge brush 7 to switch between the first state and the second state.

[0034] Based on the above scheme, the working principle mainly includes the following steps:

[0035] Preparation stage: Place the device under test 10 on the simulation platform 1, and ensure that the connection of the device under test 10 with the electrostatic generator 2 and the discharge lead 5 is correct and accurate. Set the test parameters, including the output voltage of the electrostatic generator 2, the discharge time, the discharge position, etc.

[0036] Electrostatic release stage: After receiving the test instruction, the first power component 3 starts the electrostatic generator 2 to release a preset electrostatic pulse to the device under test 10. At the same time, the driving assembly 4 drives the electrostatic generator 2 to move on the surface of the device under test 10 according to the preset trajectory and speed, so as to ensure the comprehensiveness of the electrostatic test.

[0037] Discharge stage: After the completion of the electrostatic release, the device under test 10 needs a certain recovery time to eliminate the electrostatic residue. At this time, the second power component 8 is activated to drive the discharge brush 7 to switch from the second state (separated from the discharge point 6) to the first state (in contact with the discharge point 6). Since the discharge brush 7 is connected to the ground reference plane 12 through the first lead 9, when it is in contact with the discharge point 6, a low-impedance discharge path is formed, allowing the electrostatic residue on the device under test 10 to flow rapidly to the ground reference plane 12 through the discharge lead 5. When the discharge brush 7 switches to the second state, although it is no longer directly connected to the discharge point 6, the device under test 10 has basically eliminated the electrostatic residue through the previous discharge process, and can be prepared for the next test or other operations.

[0038] Repeat testing and recording: As needed, the above steps can be repeated for multiple tests to obtain more comprehensive data. During the test, all data (such as voltage, current, time, and discharge effect of static electricity release, etc.) can be recorded and analyzed in real time.

[0039] In summary, by precisely controlling the position and movement trajectory of the static electricity generator 2, the comprehensiveness and accuracy of the static electricity test are ensured, the entire test process is automated, human intervention is reduced, the influence of human factors on the test results is reduced, and the automated test process reduces the test time, improves the test efficiency, and reduces the test cost; At the same time, through the design of the integrated discharge lead 5 and the discharge brush 7, the static electricity residual on the device under test 10 can be discharged to the ground reference plane 12 in time after the static electricity is released, avoiding the influence of static electricity on the subsequent test or operation of the device. In addition, the device is not only suitable for different types of devices under test 10, but also can meet different test requirements by adjusting the test parameters, improving the versatility and flexibility of the device.

[0040] Further, the first power member 3 and the second power member 8 are arranged such that after the first power member 3 acts, the second power member 8 drives the discharge brush 7 to switch to the first state, and then drives the discharge brush 7 to reset to the second state, and so on. The first power member 3 and the second power member 8 in the automatic test static electricity device are designed to work cooperatively to ensure smooth and efficient test process. Specifically, when the first power member 3 receives an instruction and starts to drive the static electricity generator 2 to release static electricity to the device under test 10, this action triggers a linkage mechanism. Immediately, the second power member 8 will respond, first driving the discharge brush 7 to switch from the initial second state (i.e. the state of being separated from the discharge point 6) to the first state (i.e. the state of being in close contact with the discharge point 6). At this time, the discharge brush 7 serves as a channel for static electricity discharge, quickly guiding the static electricity residual on the device under test 10 into the ground reference plane 12, providing a "clean" static electricity environment for the device. After the static electricity discharge process is completed, the first power member 3 may have completed the task of static electricity release and stopped working, or continue to move to the next test point according to the test requirements. Regardless of which case, the second power member 8 will be activated again, but this time it is to reset the discharge brush 7 from the first state to the second state, preparing for the next static electricity test or discharge operation. Through this design of repeated action, the device not only can immediately perform effective static electricity discharge after static electricity release, ensuring the accuracy of the test, but also can realize a continuous and efficient test process, automatically completing the static electricity test and discharge work at multiple test points without human intervention. This automated and intelligent design greatly improves the test efficiency and reduces the risk of human error, providing a more reliable and convenient test solution for electronic product manufacturers.

[0041] Further, the automatic test electrostatic device fully considers the balance between the comprehensiveness and efficiency of the test in the design, and in order to achieve this goal, the driving assembly 4 is endowed with more complex control logic. Specifically, when the first power member 3 and the second power member 8 repeatedly act according to the predetermined program for N times (wherein N is a preset parameter, and the range is set to 8 to 15 times), the driving assembly 4 will receive a signal indicating that the electrostatic generator 2 needs to be moved to the next test position. This design ensures that each test point can accept sufficient electrostatic discharge and discharge treatment, and through the repeated N times of electrostatic discharge and discharge action, the electrostatic residual of the device under test 10 at the test point can be more thoroughly removed, and the accuracy and reliability of the test are improved. At the same time, the setting of N times of action also considers the test efficiency factor, avoiding the waste of resources and time consumption caused by excessive testing. When the electrostatic generator 2 moves to the new test position, the first power member 3 and the second power member 8 will immediately continue their coordinated work according to the previous mode to discharge and discharge electrostatic, and this cyclic working mode makes the whole test process continue and efficient, until all the key test points of the device under test 10 are covered.

[0042] At the same time, the interval between the two adjacent test positions on the device under test 10 is 4-6mm. Considering the size of the discharge electrode of the electrostatic generator 2, in order to be able to take into account each test point on the device under test 10, the interval between the two adjacent test points is specifically set to 5mm, so as to avoid overlapping or omission between adjacent test points, and under the premise of maintaining the comprehensiveness of the test, the appropriate test interval helps to reduce the number of test points, thereby shortening the time required for the whole test process. The interval of 5mm not only guarantees the test quality, but also improves the test efficiency. In addition, by accurately controlling the test interval, it can be ensured that each test point is subjected to uniform and sufficient electrostatic treatment, avoiding test errors caused by too large or too small interval.

[0043] Optionally, the time interval of the electrostatic generator 2 releasing electrostatic is 1-2s. After the measured device 10 receives an electrostatic release, it needs a certain time to restore its internal state in order to accurately respond to the next electrostatic impact. The time interval of 1-2s provides sufficient recovery time for the measured device 10, ensuring the continuity and reliability of the test. Because too short electrostatic release time interval may cause the electrostatic accumulation effect on the measured device 10 to intensify, thereby affecting the accuracy of the test, by setting an appropriate time interval, the occurrence of such cumulative effect can be avoided, so that each test can independently and accurately reflect the electrostatic performance of the measured device 10. Moreover, under the premise of ensuring the accuracy of the test, the appropriate time interval also helps to improve the test efficiency. Too long interval will lead to the extension of the test period, while too short interval may reduce the test quality due to insufficient device recovery. The time interval of 1-2s finds a balance between the two, ensuring the accuracy of the test, and taking into account the efficiency of the test.

[0044] In some embodiments, the simulation platform 1 includes the lowermost insulating base plate 101, the coupling plate 102 arranged above the insulating base plate 101, and the insulating sheet 103 arranged on the coupling plate 102, the coupling plate 102 is connected to the ground reference plane 12 through the second wire 11, the first wire 9 is connected to the ground reference plane 12, and two 470KΩ resistors are connected in series on the first wire 9 and the second wire 11. The insulating base plate 101 serves as the basis of the entire simulation platform 1. The main role of the insulating base plate 101 is to isolate the direct electrical contact between the coupling plate 102 and the external environment, ensuring safety during the electrostatic test. At the same time, the insulating base plate 101 also has a certain mechanical support function, providing a stable support platform for the upper structure. The coupling plate 102 is located above the insulating base plate 101 and is used to simulate the discharge of devices around the measured device 10. The coupling plate 102 can be a copper plate or an aluminum plate. The coupling plate 102 is connected to the ground reference plane 12 through the second wire 11, and two 470KΩ resistors are connected in series on the second wire 11 to safely release the participating voltage on the coupling plate 102. The insulating sheet 103 is placed on the coupling plate 102. Its main role is to simulate the insulating surface of electronic products such as mobile phone screens and computer casings. The presence of the insulating sheet 103 makes the electrostatic need to pass through a certain obstacle before reaching the measured device 10, thereby more realistically reflecting the electrostatic problems that electronic products may encounter in actual use. In the circuit, the first wire 9 is used to connect the measured device 10 and the ground reference plane 12, that is, the electrostatic of the measured device 10 is discharged through the first wire 9 to ensure that the electrostatic can safely flow to the ground reference plane 12.

[0045] Specifically, the thickness of the coupling plate 102 is greater than 0.25 mm, and the thickness of the insulating sheet 103 is between 0.4-0.6 mm. The standard thickness of the coupling plate 102 needs to be greater than 0.25 mm, and this thickness is selected based on multiple factors, including the electrostatic pressure that the coupling plate 102 needs to withstand, its mechanical strength, and the effectiveness of simulating the effects of electrostatic discharge in actual environments. A thicker coupling plate 102 can more stably simulate the discharge effects of surrounding devices, while reducing the impact of its own deformation or vibration on test results. The standard thickness of the insulating sheet 103 is set to 0.5 mm, which is designed to ensure that the insulating sheet 103 can effectively isolate the direct electrical contact between the device under test 10 and the coupling plate 102, while not affecting the transmission efficiency of the electrostatic field due to excessive thickness. The main role of the insulating sheet 103 is to simulate the insulating base plate 101 of electronic products such as mobile phone screens and computer casings, in order to more realistically reflect the electrostatic problems in actual use. The specific material of the insulating base plate 101 is a cushion wood. As a common insulating material, cushion wood has good insulating properties and mechanical support ability. It not only effectively isolates the electrical contact between the coupling plate 102 and the external environment, but also provides a stable support platform for the upper structure. The selection of cushion wood also takes into account its lower cost, easy processing and replacement, and other advantages.

[0046] Optionally, the driving assembly 4 at least includes a first driving unit, a second driving unit and a third driving unit, the first driving unit is configured to drive the static electricity generator 2 to move along the X-axis direction, the second driving unit is configured to drive the static electricity generator 2 to move along the Y-axis direction, and the third driving unit is configured to drive the static electricity generator 2 to move along the Z-axis direction. The first driving unit is configured to drive the static electricity generator 2 to move along the X-axis direction, which is usually pre-set, depending on the layout of the test platform and the test requirements. The first driving unit can use mechanical devices such as motors, air cylinders or linear actuators, and through precise control algorithms, it can achieve smooth movement of the static electricity generator 2 in the specified direction.

[0047] The second driving unit corresponds to the first driving unit, and is responsible for driving the electrostatic generator 2 to move in the Y-axis direction perpendicular to the X-axis direction, so that the electrostatic generator 2 can move freely in a two-dimensional plane and cover a wider test area. The design and working principle of the second driving unit are similar to those of the first driving unit, but their movement directions are perpendicular to each other. The third driving unit is used to drive the electrostatic generator 2 to move in the Z-axis direction, and together they constitute the three-dimensional movement capability of the electrostatic generator 2 on the test platform. Through the cooperative work of the first driving unit, the second driving unit and the third driving unit, the electrostatic generator 2 can be accurately positioned to any specified position on the test platform and perform electrostatic testing. This design not only improves the flexibility of testing, but also makes the testing process more automated and efficient. In addition, since the movement directions of the three driving units are perpendicular to each other, the stability and accuracy of the electrostatic generator 2 during movement can be ensured, avoiding test errors caused by directional deviation.

[0048] The electrostatic generator 2 has a certain gap between the discharge end and the test equipment 10. When the electrostatic generator 2 discharges, it can move to a position of contact or close contact with the test equipment 10. After discharging, the electrostatic generator 2 is controlled by the third driving unit to move upward, leaving a certain gap between the discharge end and the test equipment 10, so as to avoid accidentally touching the surface of the test equipment 10 during movement. It should be noted that the distance between the discharge end of the electrostatic generator 2 and the surface of the test equipment 10 is between 0-3mm when discharging, and the distance between the discharge end of the electrostatic generator 2 and the surface of the test equipment 10 is 3mm or more when not discharging, or is larger than the distance when discharging. The specific distance is adjusted adaptively according to the actual test project.

[0049] As an optional embodiment, the driving assembly 4 is a five-axis or six-axis robot, which can realize more angle changes through multi-axis movement, and can realize electrostatic testing of side positions. The principle is the same, and more robots can be used to realize the function of automatically turning over the test equipment 10 after testing one side. The five-axis or six-axis robot provides multiple degrees of freedom, so that the electrostatic generator 2 (or the test head installed at the end thereof) can perform complex rotation and movement in three-dimensional space. This multi-degree-of-freedom design ensures the comprehensiveness and accuracy of testing, and can cover all corners and sides of the test equipment 10. Through advanced control algorithms and sensor technology, the robot can realize high-precision positioning, which means that the electrostatic generator 2 can accurately move to any specified position on the test equipment 10 for accurate electrostatic testing. The robot can be programmed and controlled to realize automatic operation of testing. Once the test parameters and path are set, the robot can automatically complete the entire test process without human intervention, which not only improves the test efficiency, but also reduces the influence of human factors on the test results.

[0050] In addition, using multiple robots can perform multiple test tasks simultaneously. For example, one robot is responsible for front side testing, and another robot is responsible for back side testing after turning over. This multi-task processing capability greatly improves test efficiency and shortens test cycle. For the static electricity test of the side position, the five-axis or six-axis robot can adjust the posture and position of the end effector to ensure that the static electricity generator 2 can accurately contact the side of the device under test 10. The robot can rotate its wrist part to make the test head approach the side position at an appropriate angle and direction, and perform static electricity test.

[0051] At the same time, in order to realize the function of automatically turning over the device under test 10 after testing one side, a turning mechanism can be integrated into the test system or the grabbing and rotating capability of the robot can be used. After the front side test is completed, the robot can grab the device under test 10 and rotate it by 180 degrees or perform other necessary turning actions to test the back side or other sides. This automatic turning function further improves the automation degree and efficiency of the test.

[0052] In some embodiments, the first power member 3 is a first steering engine, and the static electricity generator 2 is a static electricity gun. The power end of the first steering engine is connected with a rotating rod 301. The rotating rod 301 can rotate and press the switch 201 of the static electricity gun under the drive of the first steering engine, thereby starting the static electricity gun to release static electricity. The second power member 8 is a second steering engine, and the power end of the second steering engine is connected with a rotating part 801. The discharge brush 7 is connected to the rotating part 801. The first steering engine serves as a starting unit, and its power end is connected with a rotating rod 301. When the test program is started, the first steering engine receives the instruction and drives the rotating rod 301 to rotate. This rotating action accurately presses the switch 201 of the static electricity gun, and the static electricity gun is activated immediately to release simulated static electricity pulses. These pulses will be used to evaluate the static electricity discharge resistance and protection capability of the device under test 10. This automatic starting mode not only improves the test efficiency, but also ensures the accuracy and consistency of static electricity release in each test.

[0053] At the same time, the second steering engine plays the role of accurately controlling the position of the discharge brush 7. Its power end is connected with a rotating part 801, and the discharge brush 7 is firmly connected to the rotating part 801. During the test, the second steering engine drives the rotating part 801 to perform rotating or translating motion according to the preset path and parameters, thereby accurately switching the discharge brush 7 between the first state and the second state. This design enables the discharge brush 7 to effectively discharge static electricity.

[0054] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like, are intended to facilitate the description and simplify the operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", are only used to distinguish in the description, and have no special meaning.

[0055] In the description of the present application, the description referring to the terms "an embodiment", "an example", and the like, means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0056] In addition, it should be understood that although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the present application is only for the sake of clarity, and those skilled in the art should consider the present application as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0057] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanation here, those skilled in the art do not need to make creative efforts to conceive other specific embodiments of the present application, and these embodiments will fall within the scope of protection of the present application.

Claims

1. An automatic test electrostatic device, characterized by, The utility model relates to a kind of static electricity simulation test device, including: Simulation platform (1) for placing the device under test (10); Static electricity generator (2) for releasing static electricity to the device under test (10); First power element (3) is installed on the static electricity generator (2), and the first power element (3) is used to start the static electricity generator (2) to release static electricity; Drive assembly (4), the power end of which is connected to the static electricity generator (2), can drive the static electricity generator (2) to move relative to the device under test (10); Drainage conductor (5), one end is connected to the connecting port of the device under test (10), and the other end is formed with discharge point (6); Discharge brush (7) is movably installed above the discharge point (6), and is connected to the ground reference plane (12) by first conductor (9), the discharge brush (7) has first state and second state, in the first state, the discharge brush (7) is in contact with the discharge point (6);In second state, the discharge brush (7) is separated from the discharge point (6); Second power element (8) is connected to the discharge brush (7), and the second power element (8) is used to drive the discharge brush (7) to switch between the first state and the second state.

2. The automatic test electrostatic device of claim 1, wherein The first power element (3) and the second power element (8) are arranged as follows: after the first power element (3) acts, the second power element (8) drives the discharge brush (7) to switch to the first state, and then drives the discharge brush (7) to reset to the second state, and the action is repeated accordingly.

3. The automatic test electrostatic device of claim 2, wherein, The drive assembly (4) is arranged as follows: after the first power element (3) and the second power element (8) act repeatedly for N times, the drive assembly (4) drives the static electricity generator (2) to move to the next test position, and the first power element (3) and the second power element (8) continue to act, wherein 8≤N≤15.

4. The automatic test electrostatic device of claim 3, wherein The distance between two adjacent test positions on the device under test (10) is 1-6mm.

5. The automatic test electrostatic device according to any one of claims 1 to 4, wherein The time interval for the static electricity generator (2) to release static electricity is 1-2s.

6. The automatic test electrostatic device of any one of claims 1-4, wherein, The simulation platform (1) includes the lowermost insulating bottom plate (101), the coupling plate (102) arranged above the insulating bottom plate (101), and the insulating sheet (103) arranged on the coupling plate (102), the coupling plate (102) is connected to the ground reference plane (12) by second conductor (11), the first conductor (9) is connected to the ground reference plane (12), and two 470KΩ resistors are connected in series on the first conductor (9) and the second conductor (11).

7. The automatic test electrostatic device of claim 6, wherein The thickness of the coupling plate (102) is greater than 0.25mm, and the thickness of the insulating sheet (103) is between 0.4-0.6mm.

8. The automatic test electrostatic device of any one of claims 1-4, wherein, The drive assembly (4) at least includes first drive unit, second drive unit and third drive unit, the first drive unit is configured to drive the static electricity generator (2) to move along X axis direction, the second drive unit is configured to drive the static electricity generator (2) to move along Y axis direction, and the third drive unit is configured to drive the static electricity generator (2) to move along Z axis direction.

9. The automatic test electrostatic device of any one of claims 1-4, wherein, The first power member (3) is a first steering engine, the electrostatic generator (2) is an electrostatic gun, the power end of the first steering engine is connected with a rotating rod (301), the rotating rod (301) can rotate and press the switch (201) of the electrostatic gun under the drive of the first steering engine, and then the electrostatic gun is started to release static electricity.

10. The automatic test electrostatic device of any one of claims 1-4, wherein, The second power member (8) is a second steering engine, the power end of the second steering engine is connected with a rotating part (801), and the discharge brush (7) is connected to the rotating part (801).

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