Electrostatic test positioning device and electrostatic test system

Abstract

The utility model relates to a kind of electrostatic test positioning device and electrostatic test system, comprising: shell, is equipped with accommodating cavity, accommodating cavity is formed first opening and second opening through shell, accommodating cavity is suitable for accommodating electrostatic generator from the first opening and enters;Limiting structure, be located in shell, for limiting the size of electrostatic generator and enters accommodating cavity;First positioning member, with shell movably connected, first positioning member is movable between first unlocking position and first locking position, first positioning member is located in first locking position suitable for with electrostatic generator abut, first positioning member is located in first unlocking position suitable for with electrostatic generator separation;Conductive member, with shell connection, and located at second opening, conductive member is suitable for with the lead of measured piece connection.The electrostatic test positioning device of the utility model embodiment can improve detection accuracy and reliability.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic testing technology, specifically to an electrostatic testing positioning device and an electrostatic testing system. Background Technology

[0002] With the increasing demand for electrostatic discharge (ESD) testing of battery protection boards and electronic components in smartphones and other electronic devices, the reliability and stability of ESD testing are particularly important. In ESD testing, it is necessary to use an air probe to discharge the test object in the air, or to use a contact probe to discharge the test object in the contact.

[0003] Air discharge requires maintaining the air probe approximately 5mm away from the leads of the object under test (DUT). Each time the air probe generates static electricity, the DUT must discharge the leads. During this process, the distance between the air probe and the leads is often determined visually, and the air probe may even directly contact the leads. Contact discharge requires the contact probe to directly touch the leads of the DUT. Each time the DUT generates static electricity, the DUT must discharge the leads. This process may cause the contact probe to detach from the leads. Both testing methods suffer from low accuracy and poor controllability. Utility Model Content

[0004] One objective of this invention is to provide an electrostatic testing positioning device to solve the problems of low testing accuracy and poor controllability in the prior art; the other objective is to provide an electrostatic testing system.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An electrostatic testing positioning device includes: a housing having a receiving cavity, the receiving cavity extending through the housing to form a first opening and a second opening, the receiving cavity being adapted to receive an electrostatic generator extending through the first opening; a limiting structure disposed in the housing for limiting the size of the electrostatic generator extending into the receiving cavity; a first positioning member movably connected to the housing, the first positioning member being movable between a first unlocked position and a first locked position, the first positioning member being adapted to abut against the electrostatic generator in the first locked position, and the first positioning member being adapted to separate from the electrostatic generator in the first unlocked position; and a conductive member connected to the housing and located at the second opening, the conductive member being adapted to connect to the lead wire of the device under test.

[0007] According to the above-mentioned technical means, in the electrostatic testing positioning device of this utility model embodiment, when performing electrostatic testing by air discharge, the electrostatic generator is inserted into the housing through the first opening. The electrostatic generator can move axially along the receiving cavity until it moves to the position corresponding to the limiting structure. It can be determined that the electrostatic generator and the housing are in a preset position. At this time, the first positioning member is switched to the first locking position, and the first positioning member contacts the electrostatic generator, which can fix the relative position of the electrostatic generator and the housing. Since the lead of the test piece is connected to the conductive part, and the relative position of the conductive part and the housing is fixed, the relative position of the conductive part and the electrostatic generator is determined. The electrostatic discharge (ESD) test device ensures stability and prevents relative displacement during testing. When performing ESD testing via contact discharge, the ESD generator is inserted into the housing through the first opening. The generator can move axially along the cavity until it contacts the conductive element. At this point, the first positioning element is switched to the first locking position, contacting the ESD generator and fixing its relative position to the housing. Since the leads of the device under test are connected to the conductive element, and the relative position between the conductive element and the housing is fixed, the relative position between the conductive element and the ESD generator is determined and remains stable, preventing relative displacement during testing. Therefore, for both air discharge and contact discharge testing methods, the use of an ESD testing positioning device increases testing accuracy and stability, offers high controllability, and is simple in structure and low in cost.

[0008] Furthermore, the housing is constructed as a transparent structure, and the limiting structure includes positioning scales constructed on the peripheral wall of the housing.

[0009] Based on the above technical means, the size of the electrostatic generator extending into the receiving cavity is determined by using the positioning scale. The structure is simple and easy to implement, which can reduce costs.

[0010] Furthermore, there are multiple positioning scales, which are spaced apart along the axial direction of the receiving cavity.

[0011] Based on the above technical means, when testing different test pieces using air discharge, the position of the electrostatic generator can be limited by different positioning scales, thereby achieving the purpose of controlling the distance between the electrostatic generator and the test piece, which can improve the applicability of the electrostatic testing positioning device.

[0012] Furthermore, the limiting structure includes a limiting plate, which is movably connected to the housing and is adapted to abut against the electrostatic generator.

[0013] According to the above technical means, when the electrostatic generator moves in the cavity, it comes into contact with the limiting plate, which confirms that the electrostatic generator has moved into place and has higher positioning accuracy. When performing electrostatic testing, the limiting plate can be moved, and the static electricity generated by the electrostatic generator can be applied to the conductive parts.

[0014] Furthermore, the first positioning element includes: a threaded post, the housing having a threaded hole communicating with the receiving cavity, the threaded post engaging with the threaded hole; and a force-bearing part connected to the end of the threaded post away from the receiving cavity.

[0015] According to the above-mentioned technical means, by setting up a force-bearing part, it is convenient to apply rotational force to the first positioning member, thereby improving the ease of rotation of the first positioning member. Furthermore, by rotating the first positioning member, the depth of the first positioning member inserted into the receiving cavity can be adjusted, thereby adjusting the relative position of the first positioning member and the electrostatic generator to achieve positioning of the electrostatic generator.

[0016] Furthermore, there are multiple first positioning elements, and the multiple first positioning elements are disposed on at least two radially opposite sides of the receiving cavity.

[0017] According to the above-mentioned technical means, the first positioning member can apply a positioning force to the electrostatic generator from at least two opposite sides of the electrostatic generator. The electrostatic generator is clamped by the two first positioning members, which can improve the stability between the electrostatic generator and the electrostatic test positioning device, thereby improving the accuracy of the test results.

[0018] Furthermore, the conductive element is located within the receiving cavity and protrudes from the second opening.

[0019] Based on the above technical means, the conductive components are completely protected by the shell, which can reduce the probability of the conductive components being hit, reduce the probability of damage to the conductive components, prevent the conductive components from separating from the shell, and help extend the service life of the electrostatic testing and positioning device.

[0020] Furthermore, the conductive element extends circumferentially along the receiving cavity to form a ring shape.

[0021] According to the above technical means, the conductive component has a larger circumferential dimension in the receiving cavity, and the lead wire is more likely to contact the conductive component after being inserted into the receiving cavity, thus improving the convenience of connection between the lead wire and the conductive component.

[0022] Furthermore, the electrostatic testing positioning device further includes: a second positioning member, which is movably connected to the housing, the second positioning member being movable between a second unlocking position and a second locking position, the second positioning member being adapted in the second locking position to press the lead wire of the test piece onto the conductive member, and the second positioning member being adapted in the second unlocking position to separate from the lead wire of the test piece.

[0023] Based on the above technical means, the relative position between the lead and the conductive part of the device under test can be fixed, avoiding separation of the lead and the conductive part before or during the test, thus improving the reliability of the test results; and the second positioning part can be separated from the lead, making it easy to replace the lead, so as to realize the electrostatic test of the next pin of the device under test, or to realize the test of the next device under test, thus improving the test efficiency.

[0024] Furthermore, the housing includes: a first segment, the first segment being cylindrical in shape, the first opening being located at one end of the first segment, and the first positioning member being connected to the first segment; a second segment, the second segment being connected to the end of the first segment away from the first opening, the diameter of the second segment gradually decreasing in the direction away from the first segment, the second opening being located at the end of the second segment away from the first segment, and both the conductive member and the second positioning member being connected to the second segment.

[0025] According to the above-mentioned technical means, the movement of the lead wire within the receiving cavity is limited, which can improve the reliability of the electrical connection between the lead wire and the conductive component.

[0026] An electrostatic testing system includes the aforementioned electrostatic testing positioning device; an electrostatic generator extending into the receiving cavity from the first opening; a first positioning member abutting against the electrostatic generator in the first locking position to fix the position of the electrostatic generator and the housing; the first positioning member separating from the electrostatic generator in the first unlocking position; and the electrostatic generator being movable within the receiving cavity.

[0027] Based on the above technical means, the electrostatic testing system of this utility model embodiment, utilizing the above-mentioned electrostatic testing positioning device, can improve testing accuracy and stability. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the electrostatic testing system of this utility model, which tests the device under test by contact discharge.

[0030] Figure 2 This is a schematic diagram of the electrostatic testing system of this utility model, which tests the test piece by air discharge.

[0031] Figure 3This is one of the structural schematic diagrams of the electrostatic testing and positioning device according to an embodiment of this utility model.

[0032] Figure 4 This is the second structural schematic diagram of the electrostatic testing and positioning device according to an embodiment of this utility model.

[0033] Figure 5 This is the third structural schematic diagram of the electrostatic testing and positioning device according to an embodiment of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Electrostatic discharge (ESD) testing positioning device; 2. ESD generator; 3. ESD testing system; 4. Test piece; 5. Lead wire;

[0036] 100. Shell; 110. Receiving cavity; 111. First opening; 112. Second opening; 120. Positioning scale; 130. First section; 140. Second section;

[0037] 200, First positioning element; 210, Threaded post; 220, Force-bearing part;

[0038] 300. Conductive components;

[0039] 400. Second positioning component. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0042] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0043] The following is combined with Figures 1 to 5 The following describes embodiments of the present invention.

[0044] This utility model embodiment proposes an electrostatic testing positioning device 1, which includes a housing 100, a limiting structure, a first positioning element 200, and a conductive element 300.

[0045] The housing 100 has a receiving cavity 110, which extends through the housing 100 to form a first opening 111 and a second opening 112. The receiving cavity 110 is adapted to receive an electrostatic generator 2 extending into the first opening 111. A limiting structure is provided on the housing 100 to limit the size of the electrostatic generator 2 extending into the receiving cavity 110. A first positioning member 200 is movably connected to the housing 100 and is movable between a first unlocked position and a first locked position. The first positioning member 200 is adapted to abut against the electrostatic generator 2 in the first locked position and to be separated from the electrostatic generator 2 in the first unlocked position. A conductive member 300 is connected to the housing 100 and is located at the second opening 112. The conductive member 300 is adapted to be connected to the lead 5 of the test piece 4.

[0046] It should be noted that, in order to improve the safety of electrostatic testing, both the housing 100 and the first positioning element 200 can be set as insulating components to prevent the electrostatic testing positioning device 1 from being electrically connected to external objects, and also to prevent external electromagnetic interference from affecting the testing accuracy. The conductive element 300 can be made of copper or a copper alloy.

[0047] When the lead 5 of the test piece 4 is directly inserted into the receiving cavity 110 through the second opening 112, the relative position between the lead 5 and the electrostatic testing positioning device 1 is difficult to guarantee. This makes it difficult to guarantee the relative position between the lead 5 and the electrostatic generator 2, which can easily lead to errors and affect the test accuracy. By setting a conductive element 300, the relative position between the conductive element 300 and the housing 100 is fixed. After the relative position between the electrostatic generator 2 and the housing 100 is determined, the lead 5 is connected to the conductive element 300, realizing electrical conduction between the lead 5 and the conductive element 300. Therefore, the electrostatic generator 2 discharges to the conductive element 300, which is to say, discharges to the lead 5, thereby improving the test accuracy of the test piece 4.

[0048] When performing electrostatic testing using air discharge, the electrostatic generator 2 is inserted into the housing 100 through the first opening 111. The electrostatic generator 2 can move along the axial direction of the receiving cavity 110 until it moves to the position corresponding to the limiting structure. This determines that the electrostatic generator 2 and the housing 100 are in a preset position. At this time, the first positioning member 200 is switched to the first locking position. The first positioning member 200 contacts the electrostatic generator 2 and can fix the relative position between the electrostatic generator 2 and the housing 100. Since the lead 5 of the test piece 4 is connected to the conductive member 300 and the relative position between the conductive member 300 and the housing 100 is fixed, the relative position between the conductive member 300 and the electrostatic generator 2 is determined and can remain stable, without relative displacement during the test.

[0049] When performing electrostatic discharge testing, the electrostatic generator 2 is inserted into the housing 100 through the first opening 111. The electrostatic generator 2 can move along the axial direction of the receiving cavity 110 until it contacts the conductive element 300. At this time, the first positioning element 200 is switched to the first locking position, and the first positioning element 200 contacts the electrostatic generator 2, which can fix the relative position between the electrostatic generator 2 and the housing 100. Since the lead 5 of the test piece 4 is connected to the conductive element 300, and the relative position between the conductive element 300 and the housing 100 is fixed, the relative position between the conductive element 300 and the electrostatic generator 2 is determined and can remain stable, and no relative displacement will occur during the test.

[0050] Therefore, both air discharge and contact discharge testing methods can increase testing accuracy and stability by using the electrostatic testing positioning device 1. It is highly controllable, has a simple structure, and is low in cost.

[0051] The electrostatic testing positioning device 1 of this utility model embodiment is suitable for electrostatic testing of battery protection boards of miniaturized electronic products such as smartphones and wearable devices, and is also suitable for electrostatic testing of individual miniature components, with the advantages of high precision, high stability and low cost.

[0052] In some embodiments, such as Figure 1 and Figure 2 As shown, the housing 100 is constructed as a transparent structure, and the limiting structure includes positioning scale 120 constructed on the peripheral wall of the housing 100.

[0053] For example, the axial dimension of the housing 100 in the receiving cavity 110 can be 8 cm, the diameter of the housing 100 can be 2 cm, and the diameter of the second opening 112 can be 6 mm. The distance between the positioning scale 120 and the conductive element 300 is greater than 0 mm and not greater than 15 mm.

[0054] The dimensions of the positioning scale 120 and the conductive element 300 in the axial direction of the receiving cavity 110 can be controlled at the millimeter level.

[0055] In this way, by using the positioning scale 120, the depth of the electrostatic generator 2 to the receiving cavity 110 can be determined. The structure is simple and easy to implement, which can reduce costs. The method to determine whether the electrostatic generator 2 has reached the positioning scale 120 can be by visual inspection by the operator or by using light such as laser to determine that the electrostatic generator 2 is in place, thereby improving positioning accuracy.

[0056] Furthermore, there are multiple positioning scales 120, which are spaced apart along the axial direction of the receiving cavity 110. The distance between adjacent positioning scales 120 can be controlled at the millimeter level. When testing different test pieces 4 using air discharge, the distance between the electrostatic generator 2 and the test piece 4 varies. By setting multiple positioning scales 120, the position of the electrostatic generator 2 can be defined using different positioning scales 120 when testing different test pieces 4 using air discharge, thereby controlling the distance between the electrostatic generator 2 and the test piece 4. This improves the applicability of the electrostatic testing positioning device 1 and reduces the testing cost when testing multiple test pieces 4.

[0057] In some embodiments, the limiting structure includes a limiting plate (not shown in the figure), which is movably connected to the housing 100 and is adapted to abut against the electrostatic generator 2.

[0058] In this way, when the electrostatic generator 2 moves within the receiving cavity 110, it comes into contact with the limiting plate, which confirms that the electrostatic generator 2 has moved into place, resulting in higher positioning accuracy. During electrostatic testing, the limiting plate can be moved, and the static electricity generated by the electrostatic generator 2 can be applied to the conductive component 300.

[0059] In some embodiments, such as Figures 1-4 , Figure 5 As shown, the first positioning member 200 includes a threaded post 210 and a force-receiving part 220. The housing 100 is provided with a threaded hole, which communicates with the receiving cavity 110. The threaded post 210 mates with the threaded hole. The force-receiving part 220 is connected to the end of the threaded post 210 away from the receiving cavity 110.

[0060] By setting the threaded post 210, the depth of the first positioning member 200 inserted into the receiving cavity 110 can be adjusted by rotating the first positioning member 200, thereby adjusting the relative position of the first positioning member 200 and the electrostatic generator 2 to achieve positioning of the electrostatic generator 2. The position of the first positioning member 200 can be infinitely adjusted, with higher adjustment accuracy.

[0061] By setting the force-receiving part 220, a person can directly hold the force-receiving part 220 or hold the force-receiving part 220 with a tool, which makes it easier to apply rotational force to the first positioning member 200 and improves the convenience of rotating the first positioning member 200.

[0062] Furthermore, there are multiple first positioning elements 200, which are disposed at least on the radially opposite sides of the receiving cavity 110. In this way, the first positioning elements 200 can apply positioning forces to the electrostatic generator 2 from at least the opposite sides of the electrostatic generator 2. The electrostatic generator 2 is clamped by two first positioning elements 200, which can improve the stability between the electrostatic generator 2 and the electrostatic testing positioning device 1, thereby improving the accuracy of the test results.

[0063] In some embodiments, such as Figures 1-4 As shown, the conductive element 300 is located within the receiving cavity 110 and protrudes from the second opening 112. The conductive element 300 can be embedded in the inner peripheral wall of the housing 100. In this way, the conductive element 300 is completely protected by the housing 100, which can reduce the probability of the conductive element 300 being impacted, reduce the probability of damage to the conductive element 300, prevent the conductive element 300 from separating from the housing 100, and help extend the service life of the electrostatic testing positioning device 1.

[0064] In some embodiments, such as Figures 1-4 As shown, the conductive element 300 extends circumferentially along the receiving cavity 110, forming a ring. The conductive element 300 can be constructed as a ring, with a diameter of 5mm, 5.5mm, 6mm, 6.5mm, or 7mm, and an axial length of 1cm, 1.5cm, 2cm, 2.5cm, or 3cm.

[0065] In this way, the conductive element 300 has a larger circumferential dimension in the receiving cavity 110, and the lead wire 5 can more easily contact the conductive element 300 after extending into the receiving cavity 110, thus improving the convenience of the connection between the lead wire 5 and the conductive element 300.

[0066] In some embodiments, such as Figure 4 As shown, the electrostatic testing positioning device 1 also includes a second positioning member 400. The second positioning member 400 is movably connected to the housing 100. The second positioning member 400 is movable between a second unlocking position and a second locking position. When the second positioning member 400 is in the second locking position, it is suitable for pressing the lead 5 of the test piece 4 onto the conductive member 300. When the second positioning member 400 is in the second unlocking position, it is suitable for separating from the lead 5 of the test piece 4.

[0067] By setting the second positioning element 400, the relative position between the lead 5 and the conductive element 300 of the device under test 4 can be fixed, preventing the lead 5 and the conductive element 300 from separating before or during the test, thus improving the reliability of the test results. Furthermore, the second positioning element 400 can be separated from the lead 5, making it easy to replace the lead 5 to perform electrostatic discharge testing on the next pin of the device under test 4, or to perform testing on the next device under test 4, thereby improving testing efficiency.

[0068] Furthermore, the second positioning element 400 includes a self-locking element with a self-locking function. In this way, after the second positioning element 400 is switched from the second unlock position to the second locked position, the second positioning element 400 can remain in the second locked position until the user actively switches the second positioning element 400 from the second locked position to the second unlock position. This eliminates the need for the operator to manually keep the second positioning element 400 in the second locked position, thus improving the ease of implementation.

[0069] The movement of the second positioning member 400 between the second unlock position and the second locking position can be achieved by pressing or rotating, that is, the second positioning member 400 can be a pressing self-locking member or a rotating self-locking member.

[0070] In some embodiments, such as Figures 1-4 As shown, the housing 100 includes a first segment 130 and a second segment 140. The first segment 130 is cylindrical, with a first opening 111 at one end. A first positioning member 200 is connected to the first segment 130. The second segment 140 is connected to the end of the first segment 130 away from the first opening 111. The diameter of the second segment 140 gradually decreases in the direction away from the first segment 130. A second opening 112 is located at the end of the second segment 140 away from the first segment 130. The conductive member 300 and the second positioning member 400 are both connected to the second segment 140.

[0071] Because the cross-sectional area of ​​the second segment 140 near the second opening 112 is relatively small, the movement of the lead 5 within the receiving cavity 110 is limited, which can improve the reliability of the electrical connection between the lead 5 and the conductive element 300.

[0072] This utility model embodiment also proposes an electrostatic testing system 3, such as Figure 1 and Figure 2 As shown, the electrostatic testing system 3 includes an electrostatic testing positioning device 1 and an electrostatic generator 2. The electrostatic generator 2 extends into the receiving cavity 110 from the first opening 111. The first positioning member 200 is located in the first locked position and abuts against the electrostatic generator 2 to fix the position of the electrostatic generator 2 and the housing 100. When the first positioning member 200 is located in the first unlocked position, it is separated from the electrostatic generator 2, and the electrostatic generator 2 can move within the receiving cavity 110.

[0073] Among them, the electrostatic generator 2 can be an electrostatic gun.

[0074] The electrostatic testing system 3 of this utility model, by utilizing the electrostatic testing positioning device 1 described above, can improve testing accuracy and stability.

[0075] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

[0076] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An electrostatic testing and positioning device, characterized in that, include: The housing (100) is provided with a receiving cavity (110), the receiving cavity (110) penetrates the housing (100) to form a first opening (111) and a second opening (112), the receiving cavity (110) is adapted to receive an electrostatic generator (2) extending from the first opening (111); A limiting structure is provided in the housing (100) to limit the size of the electrostatic generator (2) extending into the receiving cavity (110); A first positioning element (200) is movably connected to the housing (100). The first positioning element (200) is movable between a first unlocked position and a first locked position. The first positioning element (200) is located in the first locked position to abut against the electrostatic generator (2). The first positioning element (200) is located in the first unlocked position to separate from the electrostatic generator (2). A conductive element (300) is connected to the housing (100) and located at the second opening (112). The conductive element (300) is adapted to be connected to the lead (5) of the test piece (4).

2. The electrostatic testing and positioning device according to claim 1, characterized in that, The housing (100) is constructed as a transparent structure, and the limiting structure includes positioning scales (120) formed on the peripheral wall of the housing (100).

3. The electrostatic testing and positioning device according to claim 2, characterized in that, There are multiple positioning scales (120), and the multiple positioning scales (120) are spaced apart along the axial direction of the receiving cavity (110).

4. The electrostatic testing and positioning device according to claim 1, characterized in that, The limiting structure includes a limiting plate, which is movably connected to the housing (100) and is adapted to abut against the electrostatic generator (2).

5. The electrostatic testing and positioning device according to claim 1, characterized in that, The first positioning element (200) includes: A threaded post (210) is provided in the housing (100), the threaded hole is connected to the receiving cavity (110), and the threaded post (210) is engaged with the threaded hole; The force-bearing part (220) is connected to the end of the threaded post (210) away from the receiving cavity (110), and the cross-sectional area of ​​the force-bearing part (220) is greater than the cross-sectional area of ​​the threaded post (210).

6. The electrostatic testing and positioning device according to claim 5, characterized in that, There are multiple first positioning elements (200), and the multiple first positioning elements (200) are at least disposed on the radially opposite sides of the receiving cavity (110).

7. The electrostatic testing and positioning device according to claim 1, characterized in that, The conductive element (300) is located within the receiving cavity (110); And / or, the conductive element (300) is constructed as a ring.

8. The electrostatic testing and positioning device according to claim 1, characterized in that, Also includes: The second positioning member (400) is movably connected to the housing (100). The second positioning member (400) is movable between a second unlock position and a second locking position. When the second positioning member (400) is in the second locking position, it is adapted to press the lead (5) of the test piece (4) onto the conductive member (300). When the second positioning member (400) is in the second unlock position, it is adapted to separate from the lead (5) of the test piece (4).

9. The electrostatic testing and positioning device according to claim 8, characterized in that, The housing (100) includes: The first segment (130) is cylindrical in shape, the first opening (111) is located at one end of the first segment (130), and the first positioning member (200) is connected to the first segment (130). The second segment (140) is connected to the end of the first segment (130) away from the first opening (111). The diameter of the second segment (140) gradually decreases in the direction away from the first segment (130). The second opening (112) is located at the end of the second segment (140) away from the first segment (130). The conductive element (300) and the second positioning element (400) are both connected to the second segment (140).

10. An electrostatic testing system, characterized in that, include: The electrostatic testing positioning device (1) according to any one of claims 1-9; An electrostatic generator (2) extends into the receiving cavity (110) from the first opening (111). The first positioning member (200) is located in the first locking position and abuts against the electrostatic generator (2) to fix the position of the electrostatic generator (2) and the housing (100). The first positioning member (200) is located in the first unlocking position and separates from the electrostatic generator (2). The electrostatic generator (2) is movable in the receiving cavity (110).

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