WO2022110355A1 - 一种产品外壳通断测试装置及测试方法 - Google Patents

一种产品外壳通断测试装置及测试方法 Download PDF

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Publication number
WO2022110355A1
WO2022110355A1 PCT/CN2020/136771 CN2020136771W WO2022110355A1 WO 2022110355 A1 WO2022110355 A1 WO 2022110355A1 CN 2020136771 W CN2020136771 W CN 2020136771W WO 2022110355 A1 WO2022110355 A1 WO 2022110355A1
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Prior art keywords
soft contact
product
test device
test
tested
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PCT/CN2020/136771
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English (en)
French (fr)
Inventor
王学坤
刘跃
贺志增
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Goertek Inc
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Goertek Inc
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54—Testing for continuity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/56—Testing of electric apparatus

Definitions

  • the present application relates to the technical field of ESD on-off testing, and more particularly, to a device for on-off testing of product casings.
  • the present application also relates to a test method applied to the above-mentioned product shell continuity test device.
  • the purpose of this application is to provide an on-off test device for a product shell, which is in contact with the product to be tested through a soft contact during the test, and the hardness of the soft contact is less than that of the product to be tested, which can Effectively avoid scratches on the product to be tested.
  • Another object of the present application is to provide a test method applied to the above-mentioned product shell continuity test device.
  • An on-off test device for a product shell comprising a test device and a contact mounted on the end of the test device;
  • the contact piece is a soft contact piece, and the soft contact piece has conductivity and is used for contacting with the test point of the product to be tested during the test;
  • the testing equipment includes a fixing device and a moving device, the moving device is used to drive the soft contact piece to move, and the soft contact piece is fixedly installed on the moving device through the fixing device; The hardness of the piece is less than the hardness of the product to be tested.
  • the moving device includes a sliding conductive rod movably arranged in the axial direction, one end of the sliding conductive rod is provided with a positioning column protruding in the axial direction, and the soft contact is provided with a position passing through the positioning column.
  • a fitting groove is provided, and the soft contact is sleeved on the outer periphery of the positioning column.
  • the length of the positioning column extending into the soft contact piece accounts for 60%-70% of the total length of the soft contact piece.
  • the positioning column is provided with a positioning plane
  • the groove is provided with a mating surface that cooperates with the positioning plane to limit the rotation of the soft contact piece relative to the positioning column.
  • it also includes a collar sleeved on the outer peripheral portion of the soft contact piece, the collar and the soft contact piece being in interference fit.
  • the collar and the soft contact are overlapped in the axial direction, and the overlapping length is 20%-30% of the total length of the soft contact.
  • it also includes an elastic member for restoring the sliding conductive rod after moving in the axial direction.
  • the soft contact piece is made of rubber material added with graphite.
  • the Shore hardness of the soft contact is 40A-50A.
  • test method applied to the product shell on-off test device described in any one of the above, comprising:
  • the product shell on-off test device controls the moving device to drive the soft contact to move to the test point of the product to be tested
  • the product shell on-off test device controls the soft contact to be electrically connected to the product to be tested, so that the product shell on-off test device and the product to be tested form a closed test circuit;
  • the on-off test device of the product shell obtains the grounding resistance of the product to be tested.
  • the soft contact In the process of using the product shell on-off test device provided in this application, when testing the on-off performance of the shell of the product to be tested, it is first necessary to install the soft contact on the mobile device through the fixing device, and drive the soft contact through the mobile device. The soft contact is moved, and the soft contact is brought into contact with the test point of the product to be tested, so that the soft contact is electrically connected with the product to be tested, so as to detect the on-off performance of the shell of the product to be tested.
  • the present application also provides a test method applied to the above-mentioned product shell continuity test device.
  • FIG. 1 is a schematic structural diagram of a specific embodiment of a product shell on-off test device provided by the application;
  • Fig. 2 is the top view of the on-off test device of the product shell in Fig. 1;
  • Fig. 3 is the cross-sectional schematic diagram of the on-off test device of the product casing in Fig. 1;
  • Fig. 4 is a side view of the on-off test device of the product shell in Fig. 1
  • FIG. 5 is a schematic flowchart of the testing method provided by the present application.
  • 1 is a soft contact
  • 2 is a sliding conductive rod
  • 21 is a positioning column
  • 3 is a collar
  • 4 is a spring
  • 5 is a bushing pressure plate
  • 6 is an oil-free bushing
  • 7 is a screw
  • 8 is a shaft end retaining ring
  • 9 is the cylinder connecting block.
  • the core of the present application is to provide an on-off test device for a product shell. During the test, a soft contact is used to contact the test point of the product to be tested, and the hardness of the soft contact is smaller than the hardness of the product to be tested. During the process, the product to be tested will not be scratched to avoid damage to the product to be tested.
  • Another core of the present application is to provide a test method applied to the above-mentioned product shell continuity test device.
  • FIG. 1 is a schematic structural diagram of a specific embodiment of a product shell continuity test device provided by the application
  • FIG. 2 is a top view of the product shell continuity test device in FIG. 1
  • FIG. 4 is a side view of the product shell on-off test device in FIG. 1
  • FIG. 5 is a schematic flowchart of the test method provided by the application.
  • This application document provides an on-off test device for a product shell.
  • the moving device in the test equipment drives the contact piece to move, and the contact piece is a soft contact piece 1 , and the hardness of the soft contact piece 1 is less than the hardness of the product to be tested.
  • the surface of the product to be tested will not be affected. Scratch, especially in the process of testing earphone products, the soft contact 1 is in contact with the metal mesh of the earphone to avoid scratches, deformation and tool wear on the mesh, and the soft contact 1 is in use.
  • 1 is a conductive material, and its resistance meets the test requirements, which ensures the reliability of the ESD on-off function test, and can also improve the service life and replaceability of the tooling.
  • the product shell on-off test mainly refers to the ESD on-off performance test, that is, to test the grounding resistance of the product shell to be tested;
  • the product shell on-off test device generally includes testing equipment and the contacts installed at the end of the test equipment, in the process of use, the relevant circuits, control parts, and moving parts are all set in the test equipment, and the contacts are mainly used to contact the test points of the product to be tested;
  • the contact is a soft contact 1, and the soft contact 1 has conductivity and is used to contact the test point of the product to be tested during the test process;
  • the test equipment includes a fixing device for fixing the soft contact 1 and a driving soft contact A mobile device for moving the contact piece 1, the fixing device fixes the soft contact piece 1 to the mobile device, and the hardness of the soft contact piece 1 is smaller than the hardness of the product to be tested.
  • the soft contact 1 needs to be electrically connected to the product to be tested during the test. Therefore, the soft contact 1 needs to have a certain degree of electrical conductivity.
  • the soft contact 1 can be set as rubber with graphite added. Material parts, the specific amount of graphite added needs to be determined according to the actual situation.
  • the measured impedance of the soft contact 1 can make the measured impedance of the soft contact 1 less than 0.3 ⁇ /mm, the overall measured resistance after 1000 times of testing is less than 2 ⁇ , after 5000 times of testing is less than 2.5 ⁇ , the measured value of 15000 times is less than 3.0 ⁇ , and the surface contact resistance is less than 2 ⁇ ;
  • the resistance of the soft contact 1 can also be other values, which are specifically determined according to the actual situation.
  • the mobile device drives the soft contact piece 1 to move, and makes the soft contact piece 1 contact the test point of the product to be tested, so that the soft contact piece 1 and the product to be tested are electrically connected, so as to realize the on-off performance of the shell of the product to be tested. test.
  • the hardness of the soft contact 1 can be analogous to the hardness of human finger skin, which meets the requirement of zero wear of tooling.
  • the hardness of the soft contact 1 can be set to a Shore hardness of 40A-50A; since the shell of the product to be tested is generally a hard structure, in the process of testing, the hardness of the soft contact 1 Set the Shore hardness to 40A-50A to avoid scratches on the product to be tested.
  • the moving device includes a sliding conductive rod 2 movably arranged in the axial direction, one end of the sliding conductive rod 2 is provided with a positioning column 21 protruding along the axial direction, and the soft contact 1 is provided with a groove for interference fit with the positioning column 21 , The soft contact 1 is sleeved on the outer periphery of the positioning column 21 .
  • a positioning plane can be provided on the positioning column 21 , and the groove is provided with a mating surface that cooperates with the positioning plane to limit the rotation of the soft contact 1 relative to the positioning column 21 .
  • the interference fit between the soft contact piece 1 and the positioning post 21 means that the radial dimension of the groove of the soft contact piece 1 is smaller than the radial dimension of the outer circumference of the positioning post 21.
  • the interference between the soft contact 1 and the positioning column 21 is 20%, that is, when the radial diameter of the groove is 1 mm, the outer diameter of the positioning column 21 is 1.2 mm.
  • the cooperation between the soft contact 1 and the positioning post 21 may also be other interference, which is determined according to the actual situation, and will not be repeated here.
  • the soft contact 1 when the soft contact 1 is in contact with the test point of the product to be tested, the soft contact 1 may be compressed in the axial direction, so the positioning post 21 cannot The soft contact piece 1 is completely penetrated, and a certain margin needs to be reserved so that the soft contact piece 1 has a certain deformation space in the axial direction.
  • the length of the positioning column 21 extending into the soft contact piece 1 accounts for 60%-70% of the total length.
  • the arrangement of the positioning column 21 has a certain guiding effect on the installation of the soft contact piece 1 , and can position the soft contact piece 1 , thereby ensuring the guidance of the soft contact piece 1 .
  • It also includes a collar 3 sleeved on the outer periphery of the soft contact piece 1 , and the collar 3 is in an interference fit with the soft contact piece 1 .
  • the collar 3 and the soft contact 1 overlap in the axial direction, and the overlapping length is 20%-30% of the total length of the soft contact 1 .
  • the auxiliary depth ratio of the outer collar 3 and the soft contact 1 is about 25%.
  • the total length of 1 is 10mm, then the auxiliary ring 3 is about 2.5mm, as shown in the figure, that is, the overlapping length of the ring 3 and the soft contact 1 in the axial direction is 2.5mm.
  • the outer diameter of the soft contact piece 1 will increase theoretically by 0.1-0.2mm due to the tension.
  • Ring 3 can play the role of calibration auxiliary.
  • the fit between the collar 3 and the soft contact piece 1 can neither be too tight nor too loose. Too tightness will make the soft contact piece 1 lose its elasticity and affect the anti-scratch function of the product. function; the fit between the positioning post 21 and the soft contact piece 1 can neither be too tight nor too loose, too loose it will fall off, and too tightness will affect the elasticity of the soft contact piece 1; the specific fit size needs to be based on the actual situation Sure.
  • the arrangement of the collar 3 makes the installation of the soft contact 1 more stable, and has a certain righting effect on the soft contact 1 .
  • the soft contact 1 when the soft contact 1 needs to be replaced, it is only necessary to disassemble the collar 3, pull out the soft contact 1, and then install a new one.
  • the soft contact 1 can be replaced after fixing the collar 3; the replacement process is simple and convenient, and the measured single replacement time is less than 1 minute/time, about 30-50 seconds, much shorter than the single replacement time of ordinary probes (2-3 minutes), making the replacement process more convenient and conducive to improving the test efficiency.
  • Non-woven fabric and alcohol are commonly used materials, and the average cost of each soft contact piece 1 is low, which is conducive to the realization of batches. Manufactured and maintained, routine maintenance costs are low.
  • the elastic member used to reset the sliding conductive rod 2 after moving in the axial direction.
  • the elastic member can be set as a spring 4, and the spring 4 is sleeved on the sliding conductive rod.
  • FIG. 1 is provided with a cylinder connecting block 9 for installing the cylinder, one end of the sliding conductive rod 2 is provided with a positioning column 21, and the other end is slidably installed on the cylinder connecting block 9, and An oil-free bushing 6, a bushing pressure plate 5, a shaft end retaining ring 8 and a screw 7 for fixing are arranged at one end installed on the cylinder connecting block 9; in the process of contacting the test point of the product to be tested, there may be The vibration causes the soft contact piece 1 to separate from the product to be tested, at this time, the spring 4 will be squeezed.
  • the sliding conductive rod 2 Under the action of the elastic force of the spring 4, the sliding conductive rod 2 will move to the end where the soft contact piece 1 is installed , so that the soft contact piece 1 is in contact with the product to be tested, and the sliding conductive rod 2 is connected to the product to be tested through the soft contact piece 1 to achieve electrical connection.
  • the present application also provides a test method applied to the product shell on-off test device disclosed in the above embodiment, the test method comprising:
  • Step S1 the product shell on-off test device controls the mobile device to drive the soft contact 1 to move to the test point of the product to be tested;
  • the soft contact piece 1 In the process of use, firstly, it is necessary to connect the test case of the product to be tested with the negative wire of the on-off test device of the product case, and the negative wire can be a ground wire to measure the grounding resistance of the case of the product to be tested; then control the The moving device moves to drive the soft contact piece 1 to contact the test point of the product to be tested. During the contact process, the soft contact piece 1 has a certain axial deformation.
  • step S2 the on-off test device of the product shell controls the soft contact 1 to be electrically connected with the product to be tested, so that the on-off test device of the product shell and the product to be tested form a closed test circuit;
  • Step S3 the product shell continuity testing device obtains the grounding resistance of the product to be tested.
  • the relevant test program in the product shell continuity testing device obtains the grounding resistance of the product to be tested, and analyzes the grounding resistance to obtain the ESD continuity performance of the product to be tested.

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Abstract

一种产品外壳通断测试装置及测试方法，产品外壳通断测试装置包括测试设备以及安装于测试设备端部的软质触件(1)；软质触件(1)具有导电性，用于在测试过程中与待测产品的测试点接触；测试设备包括固定装置和移动装置，移动装置用于带动软质触件(1)移动，软质触件(1)通过固定装置固定安装于移动装置；软质触件(1)的硬度小于待测产品的硬度。在软质触件(1)与待测产品接触的过程中，由于软质触件(1)的硬度小于待测产品的硬度，因此，即使软质触件(1)与待测产品接触，也不会对待测产品造成划伤，可以有效保护待测产品。

Description

一种产品外壳通断测试装置及测试方法
本申请要求于2020年11月26日提交中国专利局、申请号202011346876.3、发明名称为“一种产品外壳通断测试装置及测试方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及ESD通断测试技术领域，更具体地说，涉及一种产品外壳通断测试装置。此外，本申请还涉及一种应用于上述产品外壳通断测试装置的测试方法。
背景技术
现有技术中，在对耳机类产品进行ESD(Electro-Static discharge，静电释放)通断性能测试时，需要使用金属弹针，在产品的金属网布表面进行扎针测试，由于金属网布表面镀层非常薄，极易造成网布划伤、变形和工装磨损。综上所述，如何避免ESD通断性能测试过程中划伤金属网布，是目前本领域技术人员亟待解决的问题。
发明内容
有鉴于此，本申请的目的是提供一种产品外壳通断测试装置，在测试的过程中通过软质触件与待测产品接触，并且软质触件的硬度小于待测产品的硬度，可以有效避免对待测产品造成划伤。
本申请的另一目的是提供一种应用于上述产品外壳通断测试装置的测试方法。
为了实现上述目的，本申请提供如下技术方案：
一种产品外壳通断测试装置，包括测试设备以及安装于所述测试设备端部的触件；
所述触件为软质触件，所述软质触件具有导电性，用于在测试过程中与 待测产品的测试点接触；
所述测试设备包括固定装置和移动装置，所述移动装置用于带动所述软质触件移动，所述软质触件通过所述固定装置固定安装于所述移动装置；所述软质触件的硬度小于所述待测产品的硬度。
优选的，所述移动装置包括沿轴向可移动设置的滑动导电杆，所述滑动导电杆的一端沿轴向凸出设置有定位柱，所述软质触件设置有与所述定位柱过盈配合的凹槽，所述软质触件套设于所述定位柱的外周部。
优选的，所述定位柱伸入所述软质触件的长度占所述软质触件总长度的60％-70％。
优选的，所述定位柱设置有定位平面，所述凹槽设置有与所述定位平面配合、以限制所述软质触件相对于所述定位柱转动的配合面。
优选的，还包括套设于所述软质触件外周部的套环，所述套环与所述软质触件过盈配合。
优选的，所述套环与所述软质触件在轴向具有重合，且重合长度为所述软质触件总长度的20％-30％。
优选的，还包括用于使所述滑动导电杆沿轴向移动后复位的弹性部件。
优选的，所述软质触件为添加有石墨的橡胶材质。
优选的，所述软质触件的邵氏硬度为40A-50A。
一种测试方法，应用于上述任一项所述的产品外壳通断测试装置，包括：
所述产品外壳通断测试装置控制所述移动装置带动所述软质触件移动至待测产品的测试点；
所述产品外壳通断测试装置控制所述软质触件与所述待测产品电连接，以使所述产品外壳通断测试装置与所述待测产品形成闭合测试电路；
所述产品外壳通断测试装置获取所述待测产品的接地电阻。
在使用本申请提供的产品外壳通断测试装置的过程中，在对待测产品的壳体通断性能进行测试时，首先需要将软质触件通过固定装置安装于移动装置，并通过移动装置带动软质触件移动，并使软质触件与待测产品的测试点接触，使软质触件与待测产品实现电连接，以便对待测产品的壳体通断性能进行检测。
相比于现有技术，在软质触件与待测产品接触的过程中，由于软质触件 的硬度小于待测产品的硬度，因此即使软质触件与待测产品接触，也不会对待测产品造成划伤，可以有效保护待测产品。
此外，本申请还提供了一种应用于上述产品外壳通断测试装置的测试方法。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本申请所提供的产品外壳通断测试装置的具体实施例的结构示意图；
图2为图1中产品外壳通断测试装置的俯视图；
图3为图1中产品外壳通断测试装置的剖面示意图；
图4为图1中产品外壳通断测试装置的侧视图
图5为本申请所提供的测试方法的流程示意图。
图1-5中：
1为软质触件、2为滑动导电杆、21为定位柱、3为套环、4为弹簧、5为衬套压板、6为无油衬套、7为螺钉、8为轴端挡圈、9为气缸连接块。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的核心是提供一种产品外壳通断测试装置，在测试的过程中通过软质触件与待测产品的测试点接触，并且软质触件的硬度小于待测产品的硬度，在使用的过程中不会对待测产品造成划伤，避免损坏待测产品。本申请的另一核心是提供一种应用于上述产品外壳通断测试装置的测试方法。
请参考图1-5，图1为本申请所提供的产品外壳通断测试装置的具体实施例的结构示意图；图2为图1中产品外壳通断测试装置的俯视图；图3为图 1中产品外壳通断测试装置的剖面示意图；图4为图1中产品外壳通断测试装置的侧视图图5为本申请所提供的测试方法的流程示意图。
本申请文件提供了一种产品外壳通断测试装置，在对待测产品壳体的通断性能进行测试的过程中，测试设备中的移动装置带动触件移动，且触件为软质触件1，并且软质触件1的硬度小于待测产品的硬度，在软质触件1接触待测产品的过程中，相比于现有技术中的金属弹针，不会对待测产品的表面造成划伤，尤其在对耳机类产品进行测试的过程中，软质触件1与耳机的金属网布接触，避免对网布造成划伤、变形和工装磨损，并且在使用的过程中软质触件1为导电材质，其电阻满足测试要求，保证了ESD通断功能测试的可靠性，并且还可以提高工装的使用寿命和可替换性。
本具体实施例公开了一种产品外壳通断测试装置，产品外壳通断测试主要指ESD通断性能测试，即对待测产品壳体的接地电阻进行测试；产品外壳通断测试装置一般包括测试设备和安装于测试设备端部的触件，在使用的过程中，相关电路、控制部分、移动部分均设置于测试设备，触件主要用于与待测产品的测试点接触；本具体实施例中触件为软质触件1，其软质触件1具有导电性，用于在测试过程中与待测产品的测试点接触；测试设备包括固定软质触件1的固定装置和带动软质触件1移动的移动装置，固定装置将软质触件1固定于移动装置，且软质触件1的硬度小于待测产品的硬度。
需要进行说明的是，软质触件1测试的过程中需要与待测产品电连接，因此软质触件1需要具有一定的导电性，可以将软质触件1设置为添加有石墨的橡胶材质件，石墨的具体添加量需要根据实际情况确定。
可以使软质触件1的实测阻抗小于0.3Ω/mm，测试1000次后的整体的实测阻值小于2Ω，5000次后小于2.5Ω，15000次实测值小于3.0Ω，且面接触电阻小于2Ω；当然，软质触件1的电阻还可以是其它数值，具体根据实际情况确定。
在使用本具体实施例提供的产品外壳通断测试装置的过程中，在对待测产品的壳体通断性能进行测试时，首先需要将软质触件1通过固定装置安装于移动装置，并通过移动装置带动软质触件1移动，并使软质触件1与待测产品的测试点接触，使软质触件1与待测产品实现电连接，以便对待测产品的壳体通断性能进行检测。
相比于现有技术，在软质触件1与待测产品接触的过程中，由于软质触件1的硬度小于待测产品的硬度，因此即使软质触件1与待测产品接触或相对滑动，也不会对待测产品造成划伤，可以有效保护待测产品。
软质触件1的硬度可以类比人手指皮肤的硬度，符合工装零磨损的要求。优选的，可以将软质触件1的硬度设置为邵氏硬度为40A-50A；由于待测产品的壳体一般为硬质结构，因此在测试的过程中，将软质触件1的硬度设置为邵氏硬度为40A-50A，可以避免对待测产品造成划伤。
移动装置包括沿轴向可移动设置的滑动导电杆2，滑动导电杆2的一端沿轴向凸出设置有定位柱21，软质触件1设置有与定位柱21过盈配合的凹槽，软质触件1套设于定位柱21的外周部。
在使用的过程中，只需将软质触件1套设于定位柱21，并向定位柱21的方向推软质触件1，使其安装到位即可，安装过程方便；在拆卸的过程中，沿反方向将软质触件1拔出即可。
为了限制软质触件1相对于定位柱21转动，可以在定位柱21设置定位平面，凹槽设置有与定位平面配合、以限制软质触件1相对于定位柱21转动的配合面。
在装配的过程中，软质触件1与定位柱21过盈配合是指软质触件1的凹槽的径向尺寸小于定位柱21的外周径向尺寸，在装配的过程中，可以使软质触件1与定位柱21的过盈为20％，即在凹槽的径向直径为1mm时，定位柱21的外径为1.2mm。当然，软质触件1与定位柱21之间的配合还可以是其它的过盈量，具体根据实际情况确定，在此不做赘述。
如图3所示，在使用的过程中，当软质触件1与待测产品的测试点接触时，可能会使软质触件1具有沿轴向方向的压缩，因此定位柱21不可以完全将软质触件1贯穿，需保留一定的余量，使软质触件1在轴向具有一定的形变空间，一般定位柱21伸入软质触件1的长度占软质触件1总长度的60％-70％。
定位柱21的设置，对软质触件1的安装具有一定的导向作用，可以对软质触件1进行定位，保证了软质触件1的导向性。
还包括套设于软质触件1外周部的套环3，套环3与软质触件1过盈配合。
套环3与软质触件1在轴向具有重合，且重合长度为软质触件1总长度的20％-30％。
在安装的过程中，为保证软质触件1的弹性最大化和套环3的修正效果，外部套环3与软质触件1的辅正深度比为25％左右，若软质触件1的总长度为10mm，则套环3辅正2.5mm左右，如图所示，即套环3与软质触件1在轴向的重合长度为2.5mm。
软质触件1套入定位柱21后，因为张力理论上外径会增大0.1～0.2mm，软质触件1在接触产品时会被压缩，直径会进一步增大0.2mm左右，所以套环3可起到标定辅正作用。
套环3与软质触件1之间的配合既不能太紧也不能太松，太紧会让软质触件1失去弹性，影响防产品划伤的功能，太松就起不到辅正的作用；定位柱21与软质触件1之间的配合既不能太紧也不能太松，太松会脱落，太紧会影响软质触件1的弹性；具体的配合尺寸需要根据实际情况确定。
套环3的设置使软质触件1的安装更加稳定，对软质触件1具有一定的扶正作用。
在使用上述实施例提供的产品外壳通断测试装置的过程中，当需要对软质触件1进行更换时，只需将套环3拆卸，并将软质触件1拔出，然后安装新的软质触件1，固定好套环3就可以完成更换；替换过程简单方便，实测单次替换时间小于1分钟/次，约30-50秒，远短于普通探针的单次替换时间(2-3分钟)，使替换过程更加方便，有利于提高测试效率。
并且在日常清理的过程中，只需要使用无纺布、酒精对软质触件1进行擦拭，无纺布、酒精为常用物料，每个软质触件1的均摊费用低，有利于实现批量制造和维护，日常维护成本低。
在上述实施例的基础上，还包括用于使滑动导电杆2沿轴向移动后复位的弹性部件，如图3所示，可以将弹性部件设置为弹簧4，弹簧4套设于滑动导电杆2的外周部，如图1-3所示，设置有气缸连接块9，用于安装气缸，滑动导电杆2的一端设置有定位柱21，另一端可滑动的安装于气缸连接块9，并且在安装于气缸连接块9的一端设置有无油衬套6、衬套压板5、轴端挡圈8以及用于固定的螺钉7；在接触待测产品的测试点的过程中，可能会因为震动致使软质触件1与待测产品分离，此时会对弹簧4造成挤压，在弹簧4的 弹性力的作用下，会使滑动导电杆2向安装有软质触件1的一端移动，以使软质触件1与待测产品接触，并使滑动导电杆2通过软质触件1与待测产品导通，实现电连接。
在弹簧4的压缩弹力为0.05N的情况下，实际的使用寿命为10000-12000次。
除了上述产品外壳通断测试装置，本申请还提供一种应用于上述实施例公开的产品外壳通断测试装置的测试方法，该测试方法包括：
步骤S1，产品外壳通断测试装置控制移动装置带动软质触件1移动至待测产品的测试点；
在使用的过程中，首先需要将待测产品的测试壳体与产品外壳通断测试装置的负极线连接，负极线可以为接地线，以实现待测产品的壳体接地电阻的测量；然后控制移动装置移动，以带动软质触件1接触待测产品的测试点，在接触的过程中，软质触件1具有一定的轴向形变。
步骤S2，产品外壳通断测试装置控制软质触件1与待测产品电连接，以使产品外壳通断测试装置与待测产品形成闭合测试电路；
开启相关测试程序，使电流经滑动导电杆2、软质触件1至待测产品壳体，并实现导通，形成闭合测试电路，以便对待测产品的壳体的接地电阻进行测量。
步骤S3，产品外壳通断测试装置获取待测产品的接地电阻。
上述步骤S3中，产品外壳通断测试装置中的相关测试程序获取待测产品的接地电阻，并对接地电阻进行分析，得出待测产品的ESD通断性能。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。本申请所提供的所有实施例的任意组合方式均在此发明的保护范围内，在此不做赘述。
以上对本申请所提供的产品外壳通断测试装置及测试方法进行了详细介绍。本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以对本申请进行若干改进和修饰，这些改进和修饰也落入本申请权利要求的保护 范围内。

Claims (10)

  1. 一种产品外壳通断测试装置，包括测试设备以及安装于所述测试设备端部的触件；
    其特征在于，所述触件为软质触件(1)，所述软质触件(1)具有导电性，用于在测试过程中与待测产品的测试点接触；
    所述测试设备包括固定装置和移动装置，所述移动装置用于带动所述软质触件(1)移动，所述软质触件(1)通过所述固定装置固定安装于所述移动装置；所述软质触件(1)的硬度小于所述待测产品的硬度。
  2. 根据权利要求1所述的产品外壳通断测试装置，其特征在于，所述移动装置包括沿轴向可移动设置的滑动导电杆(2)，所述滑动导电杆(2)的一端沿轴向凸出设置有定位柱(21)，所述软质触件(1)设置有与所述定位柱(21)过盈配合的凹槽，所述软质触件(1)套设于所述定位柱(21)的外周部。
  3. 根据权利要求2所述的产品外壳通断测试装置，其特征在于，所述定位柱(21)伸入所述软质触件(1)的长度占所述软质触件(1)总长度的60％-70％。
  4. 根据权利要求2所述的产品外壳通断测试装置，其特征在于，所述定位柱(21)设置有定位平面，所述凹槽设置有与所述定位平面配合、以限制所述软质触件(1)相对于所述定位柱(21)转动的配合面。
  5. 根据权利要求2所述的产品外壳通断测试装置，其特征在于，还包括套设于所述软质触件(1)外周部的套环(3)，所述套环(3)与所述软质触件(1)过盈配合。
  6. 根据权利要求5所述的产品外壳通断测试装置，其特征在于，所述套环(3)与所述软质触件(1)在轴向具有重合，且重合长度为所述软质触件(1)总长度的20％-30％。
  7. 根据权利要求2所述的产品外壳通断测试装置，其特征在于，还包括用于使所述滑动导电杆(2)沿轴向移动后复位的弹性部件。
  8. 根据权利要求1-7任一项所述的产品外壳通断测试装置，其特征在于，所述软质触件(1)为添加有石墨的橡胶材质。
  9. 根据权利要求8所述的产品外壳通断测试装置，其特征在于，所述软 质触件(1)的邵氏硬度为40A-50A。
  10. 一种测试方法，其特征在于，应用于权利要求1-9任一项所述的产品外壳通断测试装置，包括：
    所述产品外壳通断测试装置控制所述移动装置带动所述软质触件(1)移动至待测产品的测试点；
    所述产品外壳通断测试装置控制所述软质触件(1)与所述待测产品电连接，以使所述产品外壳通断测试装置与所述待测产品形成闭合测试电路；
    所述产品外壳通断测试装置获取所述待测产品的接地电阻。
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CN110118920A (zh) * 2019-05-30 2019-08-13 苏州天孚光通信股份有限公司 一种用于半导体芯片性能测试的装置及方法
CN210155257U (zh) * 2019-06-20 2020-03-17 江苏集萃有机光电技术研究所有限公司 一种探针测试装置
CN210452049U (zh) * 2019-07-31 2020-05-05 广东吕华集团有限公司 一种数控研磨的金属探针
CN211578700U (zh) * 2020-04-22 2020-09-25 强一半导体（苏州）有限公司 一种抗干扰异步修调封装测试用探针头及关键机构

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CN115047252B (zh) * 2022-08-12 2022-11-29 山东中呈防雷科技有限公司 一种可拆卸高压线保护用防雷检测装置

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