Pin die insulation and voltage resistance test fixture

Abstract

The utility model relates to the technical field of flexible circuit board performance electrical testing, and discloses a pin die insulation and voltage resistance testing jig. The test fixture comprises a base, a connecting seat, a test device and a translation device, wherein the connecting seat, the test device and the translation device are all arranged on the base; the translation device comprises a driving assembly and a guide rail, the testing device is slidably connected to the guide rail, and the driving end of the driving assembly is detachably connected to the testing device; the connecting seat is used for assembling an integrated busbar to be tested, and the testing device is provided with a connector used for being electrically connected with the integrated busbar. Through driving of the translation device, automatic butt joint and separation of the testing device and the integrated busbar are realized, manual operation is reduced, and testing precision and efficiency are improved. The driving assembly is detachably connected with the testing device, and the integrated busbar is detachably connected with the connecting base, so that to-be-tested integrated busbars or testing devices of different specifications can be conveniently and rapidly replaced, the universality and flexibility of the testing jig are improved, the testing requirements of products of multiple models are met, and maintenance of the testing jig is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of electrical testing of flexible circuit board performance, and in particular to a pin mold insulation withstand voltage test fixture. Background Technology

[0002] In the field of pin mold insulation withstand voltage testing, the industry currently widely uses plastic-shell plug-type test fixtures. However, this technical solution has significant drawbacks: the plastic shell material has insufficient durability, resulting in a short service life of the fixture and the need for frequent replacement; the structural design is complex and relies on an integrated molding process, requiring complete disassembly for maintenance, which is difficult and time-consuming; the wear problem caused by the direct contact between the fixture and the product pins is particularly prominent, which not only affects the reliability of the test but may also damage the product under test.

[0003] As the standards for electrical testing performance of electronic components become increasingly stringent, customers have increasingly stringent requirements for the accuracy and stability of insulation withstand voltage tests. To address these issues, there is an urgent need for a test fixture that can ensure testing accuracy, extend fixture life, facilitate maintenance, and keep costs under control. Utility Model Content

[0004] The technical problem to be solved by this application is to optimize the existing pin mold insulation withstand voltage test fixture in order to reduce the wear of product pins, extend the service life of the fixture, and facilitate fixture maintenance.

[0005] To address the aforementioned issues, this application provides a pin mold insulation withstand voltage test fixture, comprising a base, a connecting seat, a testing device, and a translation device, wherein the connecting seat, the testing device, and the translation device are all mounted on the base; the translation device includes a drive assembly and a guide rail, the testing device is slidably connected to the guide rail, and the drive end of the drive assembly is detachably connected to the testing device; the connecting seat is used to assemble the integrated busbar to be tested, and the testing device is provided with a connector for electrically connecting the integrated busbar.

[0006] Preferably, the drive assembly includes a base, a wrench, a connecting rod, and a drive rod. The base is fixed to the base, the wrench is rotatably connected to the base, and the wrench is rotatably connected to one end of the connecting rod. The other end of the connecting rod is connected to one end of the drive rod, and the other end of the drive rod is detachably connected to the testing device.

[0007] Preferably, the connector is located at the end of the test device away from the drive component, and the connector is provided with a slot for inserting an integrated busbar.

[0008] Preferably, one end of the integrated busbar has a PIN pin, and the connector is provided with a plug for inserting and electrically connecting the PIN pin.

[0009] Preferably, the plug is made of polyetheretherketone (PEEK).

[0010] Preferably, the wrench is wrapped with an insulating layer.

[0011] Preferably, the testing device and the translation device are provided in two sets, and are arranged adjacent to each other.

[0012] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] When using this test fixture for insulation withstand voltage testing, the integrated busbar is first fixed on the connector. The drive assembly moves the test device via the guide rail, ensuring the connector of the test device precisely aligns with the conductive parts (such as pins) of the busbar to form an electrical connection. The test program is then started, and the test device applies high voltage to the integrated busbar through the connector to test its insulation performance (such as leakage current and breakdown voltage). During the test, the translation device maintains stable contact of the test device, preventing test errors caused by vibration or displacement. After the test, the drive assembly reverses direction to detach the test device from the integrated busbar, facilitating the replacement of the integrated busbar under test. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram illustrating the assembly relationship between the test fixture and the integrated busbar provided in the embodiments of this application.

[0016] Figure 2 This is a schematic diagram of the overall structure of the test fixture provided in the embodiments of this application.

[0017] Figure 3 for Figure 1 Enlarged view of section A.

[0018] Explanation of reference numerals in the attached drawings: 1. Integrated busbar; 11. Pin; 2. Base; 3. Connector; 31. Slot; 4. Test device; 41. Connector; 411. Plug; 5. Translation device; 51. Drive assembly; 511. Base; 512. Wrench; 513. Linkage rod; 514. Drive rod; 515. Insulation layer; 52. Guide rail. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0021] It should also be understood that the terminology used in this application specification is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0022] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0023] Please refer to Figures 1 to 3 This application provides a pin mold insulation withstand voltage test fixture, which achieves insulation withstand voltage testing of integrated busbars through the coordinated cooperation of mechanical structure and electrical connection. The test fixture includes a base 2, a connecting seat 3, a testing device 4, and a translation device 5, all mounted on the base 2. Specifically, the translation device 5 includes a drive assembly 51 and a guide rail 52. The testing device 4 is slidably connected to the guide rail 52, and the drive end of the drive assembly 51 is detachably connected to the testing device 4. The connecting seat 3 is used to assemble the integrated busbar 1 to be tested, and the testing device 4 is provided with a connector 41 for electrical connection to the integrated busbar 1.

[0024] The base 2 serves as a support platform, fixing the connecting seat 3, the translation device 5, and the testing device 4, providing a stable mechanical structure. The connecting seat 3 is used to fix the integrated busbar 1 to be tested, ensuring its stable position during testing. The drive assembly 51 is used to drive the testing device 4 to move linearly along the guide rail 52, enabling the testing device 4 to contact or separate from the busbar product. The testing device 4 is connected to the guide rail 52 via a sliding structure (such as a slider), and its external connector 41 (such as a plug 411, conductive clip, etc.) is used to electrically connect to the part of the busbar product to be tested. The drive end of the drive assembly 51 is detachably connected to the testing device 4 (such as with bolts or clips), facilitating the replacement of testing devices 4 with different specifications.

[0025] When using this test fixture for insulation withstand voltage testing, the integrated busbar 1 is first fixed on the connector 3. The drive assembly 51 pushes the test device 4 to move via the guide rail 52, ensuring that the connector 41 of the test device 4 precisely aligns with the conductive parts of the busbar (such as PIN pins 11) to form an electrical connection. The test program is then started, and the test device 4 applies high voltage to the integrated busbar 1 through the connector 41 to test its insulation performance (such as leakage current and breakdown voltage). During the test, the translation device 5 maintains stable contact of the test device 4, preventing test errors caused by vibration or displacement. After the test is completed, the drive assembly 51 reverses the drive to disengage the test device 4 from the integrated busbar 1, facilitating the replacement of the integrated busbar 1 under test.

[0026] Here, the automatic docking and disengagement of the test device 4 and the integrated busbar 1 is achieved by driving the translation device 5, reducing manual operation and improving test accuracy and efficiency. The guiding function of the guide rail 52 ensures that the connector 41 of the test device 4 and the conductive parts of the integrated busbar 1 are precisely aligned, reducing wear on the conductive parts, extending the service life of the fixture, and avoiding test failures caused by poor contact or misalignment. The drive assembly 51 is detachably connected to the test device 4, the integrated busbar 1, and the connector 3, facilitating quick replacement of different specifications of the integrated busbar 1 or the test device 4 under test, improving the versatility and flexibility of the test fixture, adapting to the testing needs of multiple product models, and facilitating the maintenance of the test fixture.

[0027] Please refer to Figure 2 In one specific embodiment, the drive assembly 51 includes a base 511, a wrench 512, a connecting rod 513, and a drive rod 514. The base 511 is fixedly connected to the base 2, the wrench 512 is rotatably connected to the base 511, and the wrench 512 is rotatably connected to one end of the connecting rod 513. The other end of the connecting rod 513 is rotatably connected to one end of the drive rod 514, and the other end of the drive rod 514 is detachably connected to the testing device 4.

[0028] The base 511 is mounted on the base 2 as a fixed fulcrum, providing support and a reference for the wrench 512, the connecting rod 513, and the drive rod 514. The wrench 512, as the driving element, is rotatably connected to the base 511 (e.g., by a pin hinge). When the operator manually operates the wrench 512, it rotates around the fixed axis of the base 511. The connecting rod 513, as a transmission intermediate, is rotatably connected at both ends to the wrench 512 and the drive rod 514 (e.g., via pins or spherical bearings). When the wrench 512 rotates clockwise or counterclockwise, the connecting rod 513 is pulled or pushed. The drive rod 514, as the driven element, reciprocates linearly along the guide rail 52 under the drive of the connecting rod 513, thereby driving the test device 4 closer to or further away from the integrated busbar 1.

[0029] By manually operating the wrench 512, the operator can control the moving speed and contact pressure of the testing device 4, avoiding potential impact damage to the connector 41 caused by excessive speed during electric drive. This is especially suitable for testing scenarios sensitive to contact accuracy and pressure (such as the mating of the plug 411 and the female pins). Manual drive requires no electricity or air supply, relying solely on mechanical linkage transmission, reducing equipment complexity and failure rate, and lowering maintenance costs. It is suitable for scenarios where high automation is not required but stable transmission is necessary (such as laboratory testing and small-batch production inspection). The rotation angle of the wrench 512 provides intuitive feedback on the position of the testing device 4, facilitating quick adjustment to the preset test position. Reversing the wrench 512 easily resets the device, improving testing efficiency.

[0030] Please refer to Figure 2 and Figure 3 In one specific embodiment, the connector 3 is located at the end of the test device 4 away from the drive component 51, and the connector 3 is provided with a slot 31 for inserting the integrated busbar 1. On the other hand, one end of the integrated busbar 1 has a PIN pin 11, and the connector 41 has a plug 411 for inserting the PIN pin and electrically connecting to the PIN pin.

[0031] The PIN pins of the integrated busbar 1 are provided with a guide structure (such as a groove, a protrusion, or a limiting step) that matches the shape of the plug 411. The guide structure is existing technology and will not be described in detail here. The guide structure can ensure that the plug 411 moves in a straight line in a single direction when it is inserted, so that the axis of the PIN pins of the busbar is strictly aligned with the axis of the plug 411, avoiding the failure of the insertion due to the angle deviation between the PIN pin 11 and the plug 411 (such as oblique insertion or off-center insertion), and avoiding problems such as deformation of the PIN pin 11 due to manual alignment error.

[0032] To this end, the PIN pins of the integrated busbar are first inserted into the slot 31 of the connector 3, and secured by the mechanical latch or friction of the slot 31. The wrench 512 is rotated to drive the linkage 513 and the drive rod 514, causing the testing device 4 to move along the guide rail 52 towards the connector 3 until the plug 411 of the connector 41 is accurately inserted into the PIN pin of the busbar. After the plug 411 is electrically connected to the PIN pin 11, the testing device 4 is connected to an external high-voltage power supply or an insulation tester to test the insulation performance of the busbar (such as withstand voltage and leakage current). The specific testing principle is existing technology and will not be elaborated in this embodiment. After the test is completed, the drive assembly 51 moves in the reverse direction, the testing device 4 retracts, the plug 411 separates from the PIN pin 11, and the busbar can be pulled out of the slot 31.

[0033] Furthermore, plug 411 is made of polyetheretherketone (PEEK). PEEK is an insulator, preventing accidental electrical conduction between plug 411 and the external environment (such as the metal base 2, other components of the testing device 4). This ensures precise electrical connection between plug 411 and PIN pin 11 during testing, preventing leakage current from interfering with test results. During testing, plug 411 needs to frequently insert and remove PIN pins, enduring insertion and extraction forces and contact pressure. The high rigidity and wear resistance of PEEK make it resistant to deformation or wear, ensuring long-term stable contact accuracy and preventing poor contact due to mechanical wear. If the test environment involves high temperatures (such as simulating actual operating temperatures) or corrosive gases / liquids, the high-temperature resistance and chemical corrosion resistance of PEEK ensure that plug 411 maintains stable performance under harsh conditions, preventing material aging or failure from affecting test reliability.

[0034] To address this, polyetheretherketone (PEEK) was chosen as the material for the 411 plug. Its comprehensive properties, including insulation, high strength, high temperature resistance, and wear resistance, ensure the test fixture remains stable, accurate, and durable during electrical connections. This is particularly suitable for integrated busbar withstand voltage testing scenarios where high insulation and environmental adaptability are required. Its effectiveness extends throughout the entire testing process, providing crucial support for improving test quality and efficiency, from contact reliability to long-term stability.

[0035] In one specific embodiment, the wrench 512 is externally wrapped with an insulating layer 515. During testing, the testing device 4 may be energized. If the wrench 512 does not have an insulating layer 515, when an operator touches the wrench 512, if the wrench 512 accidentally comes into contact with a live part, the current may be conducted to the human body through the wrench 512, causing an electric shock accident. The insulating layer 515 can prevent the current from passing through, isolate the human body from the live part, and effectively protect the personal safety of the operator.

[0036] In one specific embodiment, two sets of testing devices 4 and translation devices 5 are provided and arranged adjacent to each other. The two sets of devices can simultaneously test the two pin terminals of the integrated busbar 1, effectively improving testing efficiency. If one set of devices malfunctions or requires maintenance, the other set can still operate normally, preventing the entire testing process from halting and ensuring continuity. This provides a certain degree of fault tolerance and backup for the production process. In other embodiments, three, four, or five sets of testing devices 4 and translation devices 5 may also be provided.

[0037] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A needle-shaped insulation withstand voltage test fixture, characterized in that: It includes a base, a connecting seat, a testing device, and a translation device, wherein the connecting seat, the testing device, and the translation device are all mounted on the base; The translation device includes a drive assembly and a guide rail. The test device is slidably connected to the guide rail, and the drive end of the drive assembly is detachably connected to the test device. The connector is used to assemble the integrated busbar to be tested, and the testing device is provided with a connector for electrically connecting the integrated busbar.

2. The needle mold insulation withstand voltage test fixture according to claim 1, characterized in that, The drive assembly includes a base, a wrench, a connecting rod, and a drive rod. The base is fixed to the base, the wrench is rotatably connected to the base, and the wrench is rotatably connected to one end of the connecting rod. The other end of the connecting rod is connected to one end of the drive rod, and the other end of the drive rod is detachably connected to the testing device.

3. The needle mold insulation withstand voltage test fixture according to claim 1, characterized in that, The connector is located at the end of the test device away from the drive component, and the connector is provided with a slot for inserting an integrated busbar.

4. The needle mold insulation withstand voltage test fixture according to claim 1, characterized in that, One end of the integrated busbar has a PIN pin, and the connector is provided with a plug for inserting the PIN pin and being electrically connected to the PIN pin.

5. The needle mold insulation withstand voltage test fixture according to claim 4, characterized in that, The plug is made of polyetheretherketone (PEEK).

6. A needle mold insulation withstand voltage test fixture according to claim 2, characterized in that, The wrench is wrapped with an insulating layer.

7. The needle mold insulation withstand voltage test fixture according to claim 1, characterized in that, The testing device and the translation device are arranged in two sets, and are placed adjacent to each other.

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