Micro-resistance high-voltage testing device for automobile connector

Abstract

The utility model relates to the technical field of automobile connector manufacturing especially relates to a kind of micro-resistance high voltage testing device of automobile connector;Through including micro-resistance test module and high voltage test module;Micro-resistance test module includes horizontal insert piece group and longitudinal insert piece, horizontal insert piece group and longitudinal insert piece are set in the front and back of the automobile connector for micro-resistance test, horizontal insert piece group is inserted into the front side of automobile connector by front push cylinder and is pushed, longitudinal insert piece is inserted into the back side of automobile connector by pull back cylinder and is pushed;Horizontal insert piece group is the structure that a plurality of sets of gold-plated insert piece are made, reach to the automobile connector can be carried out multipoint parallel micro-resistance test, significantly shorten micro-resistance test period, while can avoid the transfer of the measured piece, reduce the equipment floor area, and can reduce the displacement and deformation in testing process, also can ensure data stability, overall realization test efficiency promotion, test data accurate and the effect of compact space layout.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive connector manufacturing, and in particular to a micro-resistance high-voltage testing device for automotive connectors. Background Technology

[0002] In the current automotive connector manufacturing field, traditional microresistance and high-voltage testing methods have significant drawbacks: microresistance testing requires single-point serial insertion and removal testing of terminals one by one, which is inefficient and cannot meet the high-efficiency testing requirements of multi-terminal connectors; microresistance and high-voltage testing are conducted at separate workstations, requiring repeated repositioning of the tested components, which increases the equipment footprint and is prone to data fluctuations due to clamping errors; cylinder-driven insertion of the insert can easily cause connector displacement or housing deformation, resulting in terminal contact resistance drift and high-voltage test point offset; external testing instruments and actuators are arranged separately, long-distance cables introduce signal interference risks, and loose equipment layout restricts production line space utilization. As a result, automotive connector microresistance and high-voltage testing suffers from long testing cycles, poor data accuracy, and excessive equipment footprint. Utility Model Content

[0003] The purpose of this invention is to provide a micro-resistance high-voltage testing device for automotive connectors, addressing the deficiencies in existing technologies. This device enables multi-point parallel micro-resistance testing of automotive connectors, significantly shortens the micro-resistance testing cycle, avoids the transfer of the tested component, reduces the equipment footprint, minimizes displacement and deformation during testing, ensures data stability, and achieves overall improved testing efficiency, accurate test data, and a compact spatial layout.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: It includes a micro-resistance testing module and a high-voltage testing module; the micro-resistance testing module includes a horizontal insert group and a vertical insert, the horizontal insert group and the vertical insert are disposed on the front and rear sides of the automotive connector for micro-resistance testing; the horizontal insert group is pushed and inserted into the front side of the automotive connector by a forward-push cylinder, and the vertical insert is pushed and inserted into the rear side of the automotive connector by a pull-back cylinder; the horizontal insert group consists of several groups of gold-plated inserts, each group of inserts can be individually energized and used in conjunction with the vertical insert and an external resistance meter to test the resistance of the automotive connector; the high-voltage testing module is provided with two sets of high-voltage testing mechanisms, which are respectively disposed on both sides of the position where the automotive connector is inserted by the vertical insert; each high-voltage testing mechanism has a vertically arranged high-voltage detection probe that works in conjunction with an external voltmeter to perform voltage testing on the automotive connector.

[0005] Furthermore, it also includes a positioning and placement module, on which the automotive connector is placed and positioned between the transverse insert group and the longitudinal insert, and the two sets of the high-voltage testing mechanisms are respectively located on both sides of the position where the automotive connector is inserted by the longitudinal insert on the positioning and placement module.

[0006] Furthermore, the positioning and placement module is provided with a positioning mechanism, which is provided with a vertical positioning surface and two horizontal positioning blocks. The vertical positioning surface is located near the horizontal insert group to cooperate with the front side of the automotive connector, and the two horizontal positioning blocks are located near the vertical insert group to cooperate with the rear side of the automotive connector. The two sets of high-voltage testing mechanisms are respectively located on the outside of the corresponding horizontal positioning blocks.

[0007] Furthermore, it also includes a pressing and fixing module, which is provided with two rotary pressing cylinders respectively disposed on both sides of the positioning and placement module. The two rotary pressing cylinders rotate and press down to fix the car connector inside the positioning and placement module.

[0008] Furthermore, it also includes a deformation prevention stop, which is disposed between the front and rear sides of the automotive connector itself and resists the insertion compression of the transverse insert group and the longitudinal insert.

[0009] Furthermore, a force sensor is provided between the forward thrust cylinder and the transverse insert assembly.

[0010] Furthermore, a stroke adjustment screw is provided between the forward thrust cylinder and the transverse insert group, and a stroke adjustment screw is also provided between the pull-back cylinder and the longitudinal insert.

[0011] Furthermore, the transverse insert group is provided with a total of gold-plated inserts, and each group of inserts can be individually connected to the longitudinal inserts and the resistor of the automotive connector in conjunction with the resistor meter.

[0012] Furthermore, it also includes a complete frame, and the external resistor and the external voltmeter can be placed on top of the complete frame.

[0013] The system includes a micro-resistance testing module and a high-voltage testing module. The micro-resistance testing module comprises a lateral insert group and a longitudinal insert group, which are positioned on the front and rear sides of the automotive connector being tested. The lateral insert group is pushed and inserted into the front of the automotive connector by a forward-push cylinder, and the longitudinal insert group is pushed and inserted into the rear of the automotive connector by a pull-back cylinder. The lateral insert group consists of several sets of gold-plated inserts, each of which can be individually energized and used in conjunction with the longitudinal insert group and an external resistance meter to test the resistance of the automotive connector. The high-voltage testing module has two sets of high-voltage testing mechanisms, which are located on both sides of the position where the longitudinal insert group inserts into the automotive connector. Each high-voltage testing mechanism has a longitudinally positioned high-voltage detection probe that works with an external voltmeter to test the voltage of the automotive connector. This structure enables multi-point parallel micro-resistance testing of the automotive connector, significantly shortening the micro-resistance testing cycle. It also avoids the need to move the device under test, reduces the equipment footprint, minimizes displacement and deformation during the testing process, ensures data stability, and achieves overall improved testing efficiency, accurate test data, and a compact spatial layout. Attached Figure Description

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

[0015] Figure 1 This is a perspective view of the micro-resistance high-voltage testing device for automotive connectors according to this utility model.

[0016] Figure 2 This is a schematic diagram of the microresistance testing module of this utility model;

[0017] Figure 3 This is a schematic diagram of the horizontal insert assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the high-voltage testing module of this utility model.

[0020] Figure label:

[0021] 1. Horizontal insert assembly, 1-1. 2. Longitudinal insert, 2-1. 3. High-pressure testing mechanism, 3-1. 4. High-pressure detection probe, 4. Positioning mechanism, 4-1. 5. Horizontal positioning block, 4-2. 6. Rotary pressing cylinder, 5. Anti-deformation stop block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] A micro-resistance high-voltage testing device for automotive connectors, such as Figures 1-5 As shown, the system includes a micro-resistance testing module and a high-voltage testing module. The micro-resistance testing module includes a horizontal insert group 1 and a vertical insert 2. The horizontal insert group 1 and the vertical insert 2 are located on the front and rear sides of the automotive connector for micro-resistance testing. The horizontal insert group 1 is pushed and inserted into the front side of the automotive connector by a forward-pushing cylinder 1-1, and the vertical insert 2 is pushed and inserted into the rear side of the automotive connector by a pull-back cylinder 2-1. The horizontal insert group 1 consists of several groups of gold-plated inserts, each of which can be individually energized and used in conjunction with the vertical insert 2 and an external resistance meter to test the resistance of the automotive connector. The high-voltage testing module has two sets of high-voltage testing mechanisms 3, which are located on both sides of the position where the automotive connector is inserted by the vertical insert 2. Each high-voltage testing mechanism 3 has a vertically arranged high-voltage detection probe 3-1 that works in conjunction with an external voltmeter to test the voltage of the automotive connector.

[0025] Specifically, the forward-pushing cylinder 1-1 drives the transverse insert group 1, and the pull-back cylinder 2-1 drives the longitudinal insert 2 to be inserted synchronously from both the front and rear sides of the automotive connector, achieving bidirectional clamping contact. This significantly shortens test preparation time and improves the clamping efficiency of micro-resistance testing. The transverse insert group 1 consists of multiple independently powered gold-plated inserts, each of which can be individually connected to a resistor meter and used in conjunction with the longitudinal insert 2. This supports synchronous or sequential testing of different terminal pairs of the connector, avoiding traditional single-point repetitive operations and greatly improving test coverage. Two high-voltage testing mechanisms 3 are directly set on both sides of the insertion position of the longitudinal insert 2. Their longitudinal high-voltage detection probes 3-1 allow the high-voltage testing module and the micro-resistance testing module to share the same clamping station, enabling continuous completion of two tests without transferring the device under test. This effectively reduces the equipment footprint and eliminates positioning errors caused by repeated clamping. The high-voltage detection probes 3-1 are independently arranged on the outside of the resistance testing inserts, completely avoiding the risk of high-voltage current interference to the precision resistor meter through physical isolation, while also reducing the risk of accidental contact and ensuring the safety and accuracy of the testing process. By integrating bidirectional cylinder clamping, modular parallel resistance testing, and high-voltage and resistance dual-station integrated design, the testing efficiency and accuracy are significantly improved, the spatial layout is optimized, and the operational safety is enhanced; the vertical insert 2 can change its setting direction according to different product forms, and the device is also equipped with a barcode scanner to scan the serial number.

[0026] As a preferred embodiment of the above, such as Figures 1-5 As shown, it also includes a positioning and placement module. The car connector is placed on the positioning and placement module and positioned between the transverse insert group 1 and the longitudinal insert 2. The two sets of high-voltage testing mechanisms 3 are respectively located on both sides of the position where the car connector is inserted by the longitudinal insert 2 on the positioning and placement module.

[0027] Specifically, the positioning module provides a dedicated support platform for the automotive connector, ensuring precise positioning of the connector between the transverse insert group 1 and the longitudinal insert 2. This eliminates the positional deviation caused by manual placement, allowing the transverse insert group 1, driven by the forward-pushing cylinder 1-1, and the longitudinal insert 2, driven by the pull-back cylinder 2-1, to be inserted synchronously and accurately into the corresponding terminals of the connector, significantly improving the insertion success rate and test repeatability. Two sets of high-voltage testing mechanisms 3 are directly positioned on both sides of the connector where the longitudinal insert 2 is inserted, ensuring that the relative position of the high-voltage testing probe 3-1 and the connector remains constant. This guarantees the positioning accuracy of the high-voltage testing probe and avoids test failures or data fluctuations caused by connector displacement. This module unifies the clamping references for micro-resistance testing and high-voltage testing, simplifying the testing process and effectively suppressing connector vibration or displacement during cylinder insertion and removal through physical fixation, further enhancing test stability and safety. Overall, the introduction of this positioning module creatively achieves precise positioning and rigid support throughout the connector testing process, significantly improving the reliability of bidirectional insert action and the data consistency of both high-voltage and resistance tests.

[0028] As a preferred embodiment of the above, such as Figures 1-5 As shown, the positioning and placement module is provided with a positioning mechanism 4, which is provided with a vertical positioning surface 4-1 and two horizontal positioning blocks 4-2. The vertical positioning surface 4-1 is located near the horizontal insert group 1 to cooperate in positioning the front side of the automotive connector. The two horizontal positioning blocks 4-2 are located near the vertical insert 2 to cooperate in positioning the rear side of the automotive connector. The two sets of high-voltage testing mechanisms 3 are respectively located on the outside of the corresponding horizontal positioning blocks 4-2.

[0029] Specifically, the positioning mechanism 4, with its vertical positioning surface 4-1 positioned adjacent to the transverse insert group 1, precisely constrains the front position of the automotive connector, ensuring that the transverse insert group 1, driven by the forward-pushing cylinder 1-1, can be inserted into the corresponding connector terminal without deviation. Two transverse positioning blocks 4-2 are arranged near the rear of the connector, close to the longitudinal insert 2, forming a bidirectional limiting structure. This ensures that the longitudinal insert 2, driven by the pull-back cylinder 2-1, remains coaxially aligned with the connector terminal during insertion, significantly improving insertion accuracy and test reliability. Two sets of high-voltage testing mechanisms 3 are directly positioned outside the transverse positioning blocks 4-2, using the blocks' own structure as a spatial reference to fix the relative position of the high-voltage testing probe 3-1 and the connector test point, completely eliminating high-voltage test positioning errors caused by connector displacement. Physically integrating the insert positioning references—the vertical positioning surface 4-1, the transverse positioning blocks 4-2, and the high-voltage testing station—ensures the insertion accuracy of the micro-resistance test while providing a rigid positioning support for the high-voltage probe 3-1, achieving unified and synergistic reinforcement of the dual-test module positioning references, and overall improving the stability and repeatability of the device's test data.

[0030] As a preferred embodiment of the above, such as Figures 1-5 As shown, it also includes a pressing and fixing module, which is provided with two rotary pressing cylinders 5 respectively disposed on both sides of the positioning and placement module. The two rotary pressing cylinders 5 rotate and press down to fix the car connector inside the positioning and placement module.

[0031] Specifically, the module uses two rotary pressing cylinders 5 positioned on either side of the positioning module, rotating inwards to press down, forming a symmetrical force-applying structure. Simultaneously, as the transverse insert group 1 is inserted into the front of the connector by the forward-pushing cylinder 1-1 and the longitudinal insert 2 is inserted into the rear of the connector by the pull-back cylinder 2-1, a stable downward vertical pressure is applied to the middle section of the connector. This design creatively solves the problem of slight upward tilting or displacement of the connector during insert insertion, ensuring a tight fit between the connector housing and the vertical positioning surface 4-1 and transverse positioning block 4-2 of the positioning mechanism 4, completely eliminating positioning gaps caused by vibration or insertion force. The synchronous rotary pressing mode of the two cylinders avoids occupying space above the testing station and avoids damage to the connector housing through flexible pressure application. It also provides a vibration-free testing environment for the probe 3-1 of the high-voltage testing mechanism 3, significantly improving the data stability and repeatability of both micro-resistance and high-voltage tests. The synergistic effect of this module with the bidirectional inserts and positioning mechanism achieves comprehensive rigid constraint in the connector clamping process, systematically enhancing the safety and accuracy of the testing process.

[0032] As a preferred embodiment of the above, such as Figures 1-5 As shown, it also includes a deformation prevention block 6, which is disposed between the front and rear sides of the automotive connector itself and resists the insertion and compression of the transverse insert group 1 and the longitudinal insert 2.

[0033] Specifically, by precisely positioning the stop 6 at the midpoint between the front and rear sides of the automotive connector, when the transverse insert group 1 is pushed into the front of the connector by the forward thrust cylinder 1-1 and the longitudinal insert 2 is pulled into the rear of the connector by the pull-back cylinder 2-1, the stop 6 directly abuts against the middle of the connector housing to form a rigid support. This design creatively counteracts the opposing compressive stress generated on the connector during the bidirectional insert insertion process, completely eliminating the risk of local deformation or terminal displacement caused by uneven stress on the thin-walled connector housing. The intervention of the stop 6 maintains the geometric stability of the connector structure and ensures the physical consistency of the contact between the transverse insert group 1 and the longitudinal insert 2 and the terminals, avoiding drift in micro-resistance test data or offset of high-voltage test points caused by slight deformation of the housing. This module, together with the positioning mechanism 4 and the pressing and fixing module, forms a multi-directional collaborative constraint, improving test accuracy while extending the service life of the connector in repeated tests.

[0034] As a preferred embodiment of the above, such as Figures 1-5As shown, a force sensor is provided between the forward thrust cylinder 1-1 and the transverse insert group 1.

[0035] As a preferred embodiment of the above, such as Figures 1-5 As shown, a stroke adjustment screw is provided between the forward thrust cylinder 1-1 and the transverse insert group 1, and a stroke adjustment screw is also provided between the pull-back cylinder 2-1 and the longitudinal insert 2.

[0036] Specifically, the stroke adjustment screws between the two sets of cylinders and the corresponding insert groups support mechanical fine-tuning of the insert insertion depth, enabling the same device to adapt to the terminal position tolerances of different connector models. By precisely constraining the insert stroke through physical limits, it avoids excessive or insufficient insertion caused by cylinder stroke errors, enhancing the equipment's versatility while ensuring test repeatability. It also reduces the dependence on cylinder control precision and provides a foundation for the digital management of connector testing process parameters, strengthening the equipment's adaptability and maintainability.

[0037] As a preferred embodiment of the above, such as Figures 1-5 As shown, the transverse insert group 1 has a total of 24 gold-plated inserts. Each insert can be individually connected to the longitudinal insert 2 and the resistor of the automotive connector in conjunction with the resistor meter.

[0038] As a preferred embodiment of the above, such as Figures 1-5 As shown, it also includes a complete frame, and the external resistor and the external voltmeter can be placed on top of the complete frame.

[0039] Specifically, the overall frame provides a dedicated top support platform for external resistance meters and voltmeters, physically integrating the testing instruments with the micro-resistance testing module and high-voltage testing mechanism 3. This centralizes the previously dispersed testing instruments, fixing them directly above the main body of the device. This significantly shortens the length of electrical connection cables between the instruments and the horizontal connector group 1 and the vertical connector 2, effectively reducing signal transmission loss and external interference risks, and ensuring the accuracy of micro-resistance test data. Simultaneously, the high-positioned instrument layout avoids occupying the operating plane, optimizing equipment space utilization and allowing operators to directly position and clamp the module execution connector, improving the smoothness and safety of the testing process. The structural integration of the overall frame also strengthens the overall rigidity of the equipment, suppressing the impact of vibrations caused by cylinder movement during testing, further ensuring the positioning stability of the high-voltage testing module probe 3-1. This design creatively achieves integrated collaboration between the testing instruments and the execution mechanism, improving data reliability while optimizing ergonomics.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A micro-resistance high-voltage testing device for automotive connectors, characterized in that: Includes a micro-resistance testing module and a high-voltage testing module; The micro-resistance testing module includes a transverse insert group (1) and a longitudinal insert (2). The transverse insert group (1) and the longitudinal insert (2) are arranged on the front and rear sides of the automotive connector for micro-resistance testing. The transverse insert group (1) is pushed and inserted into the front side of the automotive connector by a front push cylinder (1-1), and the longitudinal insert (2) is pushed and inserted into the rear side of the automotive connector by a pull-back cylinder (2-1). The transverse insert group (1) consists of several groups of gold-plated inserts. Each group of inserts can be individually connected to electricity and cooperate with the longitudinal insert (2) and an external resistor meter to test the resistance of the automotive connector. The high-voltage test module is equipped with two sets of high-voltage test mechanisms (3). The two sets of high-voltage test mechanisms (3) are located on both sides of the car connector. Each high-voltage test mechanism (3) has a longitudinally arranged high-voltage detection probe (3-1) to cooperate with an external voltage meter to perform voltage testing on the car connector.

2. The micro-resistance high-voltage testing device for automotive connectors according to claim 1, characterized in that, It also includes a positioning and placement module, on which the car connector is placed and positioned between the transverse insert group (1) and the longitudinal insert (2), and the two sets of high voltage test mechanisms (3) are respectively located on both sides of the position where the car connector is inserted by the longitudinal insert (2) on the positioning and placement module.

3. The micro-resistance high-voltage testing device for automotive connectors according to claim 2, characterized in that, The positioning and placement module is provided with a positioning mechanism (4), which is provided with a vertical positioning surface (4-1) and two horizontal positioning blocks (4-2). The vertical positioning surface (4-1) is located near the horizontal insert group (1) to cooperate with the front side of the car connector. The two horizontal positioning blocks (4-2) are located near the vertical insert (2) to cooperate with the rear side of the car connector. The two sets of high voltage testing mechanisms (3) are respectively located on the outside of the corresponding horizontal positioning blocks (4-2).

4. The micro-resistance high-voltage testing device for automotive connectors according to claim 2, characterized in that, It also includes a pressing and fixing module, which is provided with two rotary pressing cylinders (5) respectively located on both sides of the positioning and placement module. The two rotary pressing cylinders (5) rotate and press down to fix the car connector inside the positioning and placement module.

5. The micro-resistance high-voltage testing device for automotive connectors according to claim 1, characterized in that, It also includes a deformation prevention stop (6), which is disposed between the front and rear sides of the automotive connector itself and resists the insertion and compression of the transverse insert group (1) and the longitudinal insert (2).

6. The micro-resistance high-voltage testing device for automotive connectors according to claim 1, characterized in that, A force sensor is provided between the forward thrust cylinder (1-1) and the transverse insert group (1).

7. The micro-resistance high-voltage testing device for automotive connectors according to claim 1, characterized in that, A stroke adjustment screw is provided between the forward thrust cylinder (1-1) and the transverse insert group (1), and a stroke adjustment screw is also provided between the pull-back cylinder (2-1) and the longitudinal insert (2).

8. The micro-resistance high-voltage testing device for automotive connectors according to claim 1, characterized in that, The transverse insert group (1) is provided with a total of 24 gold-plated inserts. Each insert can be individually connected to the longitudinal insert (2) and the resistance of the automotive connector in conjunction with the resistor meter.

9. The micro-resistance high-voltage testing device for automotive connectors according to claim 1, characterized in that, It also includes a complete frame, and the external resistor and the external voltmeter can be placed on top of the complete frame.

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