Multifunctional cable performance testing device

Abstract

The invention relates to the technical field of cable testing, in particular to a multifunctional cable performance testing device, which comprises a testing host, an electrical performance testing module and a mechanical performance testing module, and is characterized in that the electrical performance testing module is electrically connected with the testing host and is used for detecting electrical parameters of a cable; the mechanical performance test module is used for testing the mechanical strength of a cable, the test host is provided with a connecting base for connecting different cable specifications and a functional base for connecting different electrical performance tests, and the connecting base is fixedly connected to the top of the functional base; the connecting base is provided with a plurality of interfaces of different cable specifications in the circumferential direction of the connecting base, and each interface is provided with a fixing assembly used for fixing a cable. The fixing assembly comprises a plurality of connecting plates fixedly connected to the connecting base in the circumferential direction, and fixing arms are symmetrically hinged to the connecting plates. According to the invention, the application scene of the device is expanded, and the universality and operation coherence of the equipment are improved, so that the overall test efficiency and the industrial application suitability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable testing, and in particular to a multifunctional cable performance testing device. Background Art

[0002] Cables are the core carriers of power transmission and signal communication. Parameters such as resistance, insulation strength, and voltage resistance determine equipment operational safety and signal transmission reliability. In fields such as industrial manufacturing, power engineering, and communications networks, cable performance must be tested using specialized testing equipment to ensure compliance with standards and requirements, thereby minimizing risks such as short circuits, fires, and signal degradation caused by substandard cable quality.

[0003] The HF-5000 integrated cable tester, for example, is used for testing the electrical performance of cables and harnesses after manufacture. It offers two-wire and four-wire mixed testing, including fast OS conduction, contact resistance, on-resistance, NTC temperature sensing, DC withstand voltage, AC withstand voltage, insulation resistance, and relay testing. It also features a withstand voltage output and insulation test with a four-wire resistance resolution of 0.1 microohm. The test system consists of a compact HF-5000 main unit, a display, adapter cables, and other accessories.

[0004] These products may lack modular interface design, resulting in a cumbersome replacement process and poor convenience. Furthermore, there's a lack of interoperability between different brands of interface modules, limiting the flexibility and adaptability of the equipment. Due to poor test fixture or interface design, some devices are prone to poor contact and signal interruption during testing, impacting the accuracy and repeatability of test results. Therefore, a versatile cable performance tester is necessary. Summary of the Invention

[0005] To solve the above problems, the present invention provides a multifunctional cable performance testing device. Through the linkage of the fixing component and the driving component, cables of different specifications can be inserted into different interfaces and stably fixed; the applicable scenarios of the device are expanded, the versatility and operational consistency of the equipment are improved, thereby improving the overall testing efficiency and adaptability to industrial applications.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a multifunctional cable performance testing device, including a test host, an electrical performance testing module and a mechanical performance testing module. The electrical performance testing module is electrically connected to the test host and is used to detect the electrical parameters of the cable; the mechanical performance testing module is used to test the mechanical strength of the cable. The test host is provided with a connection base for connecting cables of different specifications and a functional base for connecting different electrical performance tests. The connection base is fixedly connected to the top of the functional base; the connection base is provided with several interfaces of different cable specifications along its circumference, and the interfaces are provided with fixing components for fixing the cables.

[0007] The fixing assembly includes several connecting plates fixedly connected to the connecting base in the circumferential direction, and the connecting plates are symmetrically hinged with fixed arms; the connecting plates are slidably fitted with moving blocks, and the moving blocks pass through the fixed arms and slide with the fixed arms; the connecting plates and the fixed arms are provided with moving grooves for the sliding of the moving blocks, and when the moving blocks slide, they can drive the fixed arms to rotate around the hinge points with the connecting plates; a driving assembly for driving the moving blocks to move is provided on the connecting base; when the cable is inserted from the interface, the driving assembly is triggered to run, and the fixed arms generate clamping force on the cables through the moving blocks.

[0008] The technical principles of the above scheme are as follows:

[0009] By inserting cables of different specifications into the corresponding ports, the driver assembly is activated when a cable is inserted, which in turn drives the moving block. Because the moving blocks extend through and slide with the fixed arms, and the fixed arms are symmetrically hinged to the connecting plate, the moving blocks drive the fixed arms to rotate around their hinge points with the connecting plate, thereby generating a clamping force on the cables, ensuring a stable grip. Once the cables are connected, the functional base design allows them to be connected to different electrical performance test areas, meeting diverse testing needs.

[0010] The above scheme has the following beneficial effects:

[0011] 1. This invention utilizes the interlocking action of a fixed assembly and a drive assembly to allow cables of varying specifications to be inserted into different interfaces and stably secured. When a cable is inserted into an interface, the drive assembly triggers the sliding movement of a movable block, driving the symmetrically articulated fixed arms to rotate around the connecting plate, forming an encircling clamp. This design automatically adapts to varying diameters, from thin signal lines to thick power cables. Through clever mechanical coordination, the device is compatible with a wide range of interface types (such as banana plugs, coaxial interfaces, and USB interfaces) and diameters, expanding its applicability and enhancing its versatility and operational consistency.

[0012] 2. The drive mechanism of the fixing assembly of the present invention automatically triggers the clamping process, eliminating the need for manual tightening or snap-on fixation, reducing manual operation steps and errors. Furthermore, the stable driving force provided by the drive assembly matches the clamping force to the cable diameter, resulting in greater clamping force with larger diameters, thereby improving the stability of the fixation of large-diameter cables. This reduces the impact of loose cables on test signal transmission, provides a stable physical foundation for electrical parameter measurement, and enhances the reliability and repeatability of test results.

[0013] 3. This invention utilizes the integrated design of the connection base and the functional base to establish a test path for interface selection, automatic clamping, and function switching. The multi-interface layout of the connection base can connect to different types of cables, while the functional base connects the cables to the corresponding power performance test after clamping. This process optimization is suitable for batch cable testing scenarios, reducing manual intervention and operational errors. At the same time, the standardized operation of the mechanical structure ensures the standardization of the test process, improving overall test efficiency and adaptability to industrial applications.

[0014] Furthermore, the driving assembly includes several sliding rods slidably connected to the connecting plate, one end of the sliding rods is fixedly connected to the moving block; the other end of the sliding rod passes through the connecting base and is fixedly connected to a push block, and the end of the push block away from the sliding rod is provided with a wedge surface; the connecting plate is provided with a rebound assembly for driving the sliding rod to return to its position.

[0015] Beneficial Effects: The pusher's wedge-shaped design converts the cable insertion motion into a lateral driving force, enabling automatic clamping of the fixed arm. This mechanical triggering method requires no additional power source, reducing reliance on electrical components and minimizing the risk of failure. Furthermore, the wedge's angle ensures instant clamping upon cable insertion, enhancing operational convenience and responsiveness. Furthermore, the pusher automatically resets upon cable removal, creating a barrier around the interface, reducing the ingress of foreign matter and extending the device's service life.

[0016] Furthermore, the rebound assembly includes a plurality of tension springs fixedly connected to the inner wall of the movable groove, and one end of the tension spring away from the movable groove is fixedly connected to the sliding rod.

[0017] Beneficial effects: The tension spring stores and releases energy through elastic deformation, realizing automatic resetting of the slide rod and the moving block. The clamping and releasing actions can be completed without an additional power source, simplifying the structural design and reducing energy consumption. The tension spring and the slide rod are arranged axially, and the force transmission path is short and uniform, reducing the risk of mechanical jamming and improving the smoothness and durability of equipment operation.

[0018] Furthermore, the functional base is fixedly connected to several slot plates along its circumference, and the slot plates are each provided with a first plug and a second plug; the first plugs are electrically connected to the interface, and the second plugs are electrically connected to different electrical performance test areas respectively; the functional base is provided with a movable component for driving the first plug and the second plug to be electrically connected to each other.

[0019] Beneficial Effects: The first plug on the slot board is electrically connected to the interface, while the second plug corresponds to the test area. A movable component drives the two into contact to switch test functions, improving operational efficiency. The modular design layout allows each test function to operate independently, without affecting each other in the event of a failure. The circumferentially distributed slot board structure optimizes space utilization, allowing the device to accommodate diverse testing needs in a compact package.

[0020] Furthermore, the moving component includes a cam that rotates and cooperates with the functional base, a handle is fixedly connected to the cam, and the first plug is fixedly connected to the slot plate; the second plug is slidably engaged with the slot plate, and a connecting rod is fixedly connected to the second plug; the end of the connecting rod away from the second plug is fixedly connected to a contact block, and the contact blocks are slidably connected to the functional base; when the cam contacts the contact block, it can drive the second plug to move and engage with the first plug; the slot plate is provided with a pull-back component for driving the second plug to return to its position.

[0021] Beneficial effects: By turning the handle, the cam drives the contact block to bring the second plug into contact with the first plug, enabling rapid switching of test functions without the need for manual plugging and unplugging of lines, thereby improving operational efficiency; at the same time, the contact between the contact block and the cam can limit the movement of each plug to prevent excessive displacement from damaging the plug.

[0022] Furthermore, the pullback assembly includes a plurality of springs fixedly connected to the outer wall of the first plug, and ends of the springs away from the first plug are fixedly connected to the outer wall of the second plug.

[0023] Beneficial effect: The spring drives the second plug to automatically return to its position through elastic force, so that the plugs can be separated after testing. No additional power source is required to simplify the structure. The spring force can ensure the reliable separation of the plugs. The spring force arranged along the moving direction of the plug is directly transmitted, reducing the risk of jamming and improving the smoothness of equipment operation and test accuracy.

[0024] Furthermore, the electrical performance test module includes the following units:

[0025] The high-frequency signal generating unit is used to input a high-frequency signal into the cable to detect the transmission performance of the cable in a high-frequency environment.

[0026] The signal analysis unit is connected to the high-frequency signal generating unit and receives the reflected signal after the high-frequency signal is input; the received reflected signal is analyzed to obtain the high-frequency characteristic parameters of the cable attenuation and impedance.

[0027] Beneficial Effects: The high-frequency signal generation unit inputs test signals to detect transmission performance defects; the signal analysis unit receives reflected signals and analyzes parameters such as attenuation and impedance to quantitatively evaluate the cable's high-frequency characteristics. These two components work together to build performance testing, improving test efficiency and data accuracy, providing a basis for optimizing cable quality. They also adapt to the high-frequency performance testing needs of cables of different specifications, enhancing the device's versatility and practicality.

[0028] Furthermore, the mechanical properties testing module includes the following units:

[0029] The tensile test unit is used to measure the tensile force applied to the cable and set different tensile test procedures.

[0030] The bending test unit is used to test cables at different bending degrees to simulate actual usage scenarios.

[0031] Beneficial Effects: The tensile test unit measures the tensile force applied to cables and, through multi-program testing, quantitatively assesses their tensile strength to simulate tension scenarios encountered during installation or use. The flex test unit simulates actual operating conditions by varying degrees of bending, testing the cable's structural stability and signal transmission reliability under repeated bending. Together, these two units assess the cable's mechanical properties, providing data support for product quality optimization. The multi-program setup also enhances the device's adaptability to cables of varying specifications, improving testing efficiency and versatility.

[0032] Furthermore, it also includes an automatic test program module and a fault diagnosis and alarm module; the automatic test program module is used to preset the test process through the operation interface, and the test host automatically controls each test unit to perform tests in sequence according to the preset program; and automatically adjusts the parameters of subsequent tests according to the type of cable and the preliminary test results.

[0033] The fault diagnosis and alarm module is used to monitor the working status of each unit in real time during the test process. When an abnormality occurs, an alarm is issued and fault information is displayed.

[0034] Beneficial Effects: The automatic test program module automates testing through preset processes, dynamically adjusting parameters based on cable type and initial test results, improving test accuracy and efficiency while reducing manual intervention. The fault diagnosis module monitors unit status in real time, instantly annoys the system, and displays fault information, enabling rapid problem location and resolution. These two modules work together to create intelligent testing, enhancing system stability and reliability, reducing manual operation errors, and providing efficient assurance for cable quality control. They also adapt to diverse testing needs and enhance the overall practicality of the equipment.

[0035] Furthermore, it also includes an environmental simulation module, which is used to simulate different environmental conditions of temperature, humidity and vibration to test the performance stability of the cable in a complex environment.

[0036] Beneficial Effects: The environmental simulation module simulates the complex environmental conditions encountered in cable applications by precisely controlling parameters such as temperature, humidity, and vibration, enabling testing of cable performance stability under extreme or dynamic conditions. The collaborative simulation of multiple environmental factors can proactively identify potential risks such as material aging and structural fatigue. Test data provides a quantitative basis for optimizing cable weatherability, enhancing product reliability and service life in diverse scenarios. It also expands the device's testing capabilities for environmentally sensitive cables, improving the comprehensiveness and practical value of testing.

[0037] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is an axonometric diagram of the multifunctional cable performance testing device of the present invention.

[0039] Figure 2 For the present invention Figure 1 Axonometric drawing of the fixed component.

[0040] Figure 3 For the present invention Figure 2 Cross-sectional view along the AA axis.

[0041] Figure 4 For the present invention Figure 1 Axonometric drawing of the mobile component in .

[0042] Figure 5 For the present invention Figure 4 Cross-sectional view along the BB direction.

[0043] Figure 6 This is a structural block diagram of the multifunctional cable performance testing device of the present invention.

[0044] The figure marks in the drawings of the specification include: 1. test host; 2. connecting base; 3. functional base; 4. connecting plate; 5. fixed arm; 6. moving block; 7. sliding rod; 8. push block; 9. tension spring; 10. slot plate; 11. first plug; 12. second plug; 13. cam; 14. connecting rod; 15. contact block; 16. spring; 17. housing; 18. handle. DETAILED DESCRIPTION

[0045] The following is further described in detail through specific implementation methods:

[0046] Example 1, as attached Figure 1 As shown: A multifunctional cable performance testing device includes a test host 1, which is provided with a connection base 2 for connecting cables of different specifications and a functional base 3 for connecting different electrical performance tests. The connection base 2 is fixedly connected to the top of the functional base 3 by screws; the connection base 2 is provided with several interfaces of different cable specifications along its circumference. In this embodiment, the different interfaces mainly include RJ45, banana head, BNC, USB and HDMI interfaces, etc.; the interfaces are all provided with fixing components for fixing cables.

[0047] Combine Figure 2As shown, the fixing assembly includes a connecting plate 4 fixedly connected to the connecting base 2 by a number of circumferential screws, and the connecting plate 4 is symmetrically hinged with a fixed arm 5; the connecting plate 4 is slidably fitted with a moving block 6, which passes through the fixed arm 5 and slidably fits with the fixed arm 5; the connecting plate 4 and the moving block 6 are both provided with a moving slot for the moving block 6 to slide, and when the moving block 6 slides, it can drive the fixed arm 5 to rotate around its hinge point with the connecting plate 4; the connecting base 2 is provided with a drive assembly for driving the moving block 6 to move; when a cable is inserted from the interface, the drive assembly is triggered to operate, causing the fixed arm 5 to generate a clamping force on the cable through the moving block 6. In this embodiment, a shell 17 is provided on the connecting base 2, and a corresponding opening is opened on the shell 17. The shell 17 is screw-fixed to the top of the test host 1.

[0048] Combine Figure 3 As shown, the drive assembly includes several slide rods 7 slidably connected to the connecting plate 4. One end of each slide rod 7 is screw-fixed to the moving block 6. The other end of each slide rod 7 passes through the connecting base 2 and is screw-fixed to a push block 8. The push block 8 has a wedge surface on the end away from the slide rod 7. The connecting plate 4 is equipped with a rebound assembly for driving the slide rod 7 back. The rebound assembly includes several tension springs 9 screw-fixed to the inner wall of the moving groove. The end of the tension spring 9 away from the moving groove is screw-fixed to the slide rod 7.

[0049] Specifically, Figure 3 For example, when the cable contacts the wedge surface, its external driving force acts on the wedge surface of push block 8, which drives slide rod 7 along connecting plate 4, and simultaneously moves movable block 6 away from fixed arm 5. The sliding cooperation between slide rod 7 and connecting plate 4 ensures precise movement. After the cable is pulled out, the tension spring 9 of the rebound assembly automatically resets movable block 6 through its tensile force, improving the component's responsiveness and cyclic stability.

[0050] Combine Figure 4 As shown, the functional base 3 is fixedly connected to a plurality of slot plates 10 along its circumferential screws, and the slot plates 10 are each provided with a first plug 11 and a second plug 12; the first plugs 11 are electrically connected to the interface, and the second plugs 12 are electrically connected to different electrical performance test areas, respectively. In some preferred embodiments, the different electrical performance test areas mainly include resistance testing, insulation testing, withstand voltage testing, and continuity testing, etc.; the functional base 3 is provided with a moving component for driving the first plug 11 to contact the second plug 12.

[0051] The moving component includes a cam 13 that rotates and fits on the functional base 3. A handle 18 is fixedly connected to the cam 13. In this embodiment, the handle 18 extends to the outside of the shell 17, and different electrical performance test areas are marked on the shell 17; the first plug 11 is fixedly connected to the slot plate 10 by screws; the second plug 12 is slidably fitted with the slot plate 10, and the second plug 12 is fixedly connected with a connecting rod 14 by screws; the end of the connecting rod 14 away from the second plug 12 is integrally formed with a contact block 15, and the contact block 15 is slidably connected to the functional base 3. The sliding connection between the contact block 15 and the functional base 3 can keep it in a linear motion trajectory, so that the connecting rod 14 can stably drive the second plug 12 to move; when the cam 13 contacts the contact block 15, it can drive the second plug 12 to move and engage with the first plug 11; the slot plate 10 is provided with a pull-back component for driving the second plug 12 to return. Combined Figure 5 As shown, the pullback assembly includes a plurality of springs 16 fixedly connected to the inner wall of the slot plate 10 with screws, and one end of the spring 16 away from the slot plate 10 is fixedly connected to the second plug 12 with screws.

[0052] Specifically, when the handle 18 is turned to rotate the cam 13, the raised portion of the cam 13 pushes the contact block 15 to slide along the functional base 3, and the connecting rod 14 simultaneously pushes the second plug 12 toward the first plug 11 and engages and connects them, so that the cable is connected to different electrical performance test areas, realizing electrical path switching and testing, and the range of rotation of the handle 18 can be selected according to test requirements. After the external force is removed, the spring 16 pulls the second plug 12 to rebound and reset, so that the second plug 12 is disengaged from the first plug 11, completing a complete movement cycle of rotation, contact, conduction, reset and disconnection. The guide of the slot plate 10 and the buffering of the spring 16 ensure that the plug docking is stable, and the cam 13 transmission realizes the synchronous switching of multiple groups of plugs, adapting to the needs of rapid switching of multiple test areas, and improving the convenience of system operation and connection reliability.

[0053] The specific implementation process is as follows:

[0054] First, before conducting the cable performance test, the cable is connected using different interfaces of the connection base 2 (banana head, BNC, USB, etc.). When the cable is inserted into the interface of the connection base 2, it contacts the wedge surface of the push block 8 and applies external force, driving the slide rod 7 to drive the moving block 6 to slide, and the fixed arm 5 rotates around the hinge point to clamp and fix the cable. At the same time, the tension spring 9 is stretched and stores force, so that the cable is stably fixed.

[0055] After the cable is successfully connected, the handle 18 of the functional base 3 is rotated, and the cam 13 rotates and pushes the contact block 15, and the second plug 12 is pulled into contact with the first plug 11 through the connecting rod 14, and the corresponding electrical performance test area (such as resistance, insulation detection, etc.) is turned on, and the spring 16 is compressed synchronously; the test host 1 performs a preset performance test on the cable through the turned-on plug path; after the test is completed, the handle 18 is released, the spring 16 rebounds to separate the second plug 12 from the first plug 11, and the cam 13 is reset with the handle 18; after the cable is pulled out, the tension spring 9 pulls the slide bar 7 and the moving block 6 back to their positions, the fixed arm 5 is released, and the device returns to its initial state.

[0056] The wedge surface of the push block 8 of this embodiment adopts a gradient angle design, so that the displacement speed of the moving block 6 driven by the slide rod 7 increases with the insertion depth, and the clamping force of the fixed arm 5 gradually increases from the initial preload (5N) to the working pressure (20-30N), avoiding instantaneous clamping of the cable sheath.

[0057] Color scale lines are provided on the surface of the housing 17 corresponding to different test areas (resistance / insulation / voltage resistance / continuity). The pointer at the end of the handle 18 rotates with the cam 13 to indicate the current conduction test area in real time. The rotational resistance is achieved through the contour design of the cam 13 to achieve card point positioning, ensuring that the plug docking error during switching is ≤0.1mm.

[0058] And through the coordinated design of mechanical linkage and elastic reset, the process of insertion, clamping, testing and reset is realized, significantly improving test efficiency and connection reliability. Its advantages are reflected in: 1) The adaptive clamping setting is compatible with multiple specifications of cables with a diameter of 5-20mm (banana plug, coaxial, USB, etc.), and the clamping force of the fixed arm 5 gradually increases from the initial pre-tightening 5N to the working pressure of 20-30N, with a response time of ≤0.3 seconds, ensuring stable contact of the cable; 2) The test area switching mechanism driven by the cam 13 achieves docking accuracy, and the synchronization error of multiple groups of plugs is ≤0.1mm, ensuring the accuracy of test data; 3) The dual elastic reset design (tension spring 9 reset force 8-15N, spring 16 pre-tightening force 24N) achieves fast reset, with a drive efficiency of more than 85%, suitable for high-precision testing and production line batch inspection scenarios.

[0059] Example 2, as attached Figure 6 As shown, the difference from the above embodiment is that this embodiment also provides an electrical performance test module, a mechanical performance test module, an automatic test program module, a fault diagnosis and alarm module and an environmental simulation module of the device; the electrical performance test module is electrically connected to the test host 1 for detecting the electrical parameters of the cable; the mechanical performance test module is used to test the mechanical strength of the cable.

[0060] Specifically, the electrical performance test module includes the following units:

[0061] The high-frequency signal generator is used to input high-frequency signals into cables to test their transmission performance in high-frequency environments. It covers a frequency range of 1MHz-20GHz and supports sine wave, square wave, and pulse signal output. The output power is continuously adjustable from 0-10dBm with a step accuracy of 0.1dB, enabling simulation of signal transmission environments in scenarios such as 5G base stations and industrial Ethernet.

[0062] The signal analysis unit is connected to the high-frequency signal generation unit and receives the reflected signal after the high-frequency signal input. It analyzes the received reflected signal to obtain high-frequency characteristic parameters of the cable attenuation and impedance. This embodiment uses a 0-60dB attenuation test range with an accuracy of ±0.1dB. The impedance test uses 50Ω / 75Ω / 100Ω standard impedance matching with a test error of ≤1%. The reflected signal sampling bandwidth is set to 80MHz, and the waveform storage depth is ≥1M points, capable of capturing nanosecond-level signal distortion.

[0063] The mechanical properties testing module includes the following units:

[0064] The tensile test unit measures the tensile force applied to cables and allows for the configuration of various tensile test procedures. It features a test range of 0-2000N, a resolution of 0.1N, and an adjustable test speed of 0.1-500mm / min. It supports test procedures such as constant-rate tension and step-load testing. It automatically shuts down when the tensile force drops by ≥20% of the rated value, recording peak force and elongation at break. Data repeatability is ≤2%.

[0065] The bending test unit is used to test cables at different bending degrees, simulating actual use scenarios. It offers a bending angle range of 0-180°, an adjustable bending radius of 5-50mm, a bending speed of 10-60 times / minute, and supports alternating single-axis and dual-axis bending modes.

[0066] The automatic test program module is used to preset the test process through the user interface. The test host 1 automatically controls each test unit to perform tests in sequence according to the preset program. It also automatically adjusts the parameters of subsequent tests based on the cable type and preliminary test results. Based on the preliminary test results, subsequent parameters are automatically optimized. For example, if the cable insulation resistance is greater than 1000MΩ, the withstand voltage test voltage is automatically increased from 1kV to 1.5kV.

[0067] The fault diagnosis and alarm module monitors the operating status of each unit in real time during the test. If an anomaly occurs, it issues an alarm and displays the fault information. In this embodiment, the alarm response uses an audible and visual alarm (buzzer + flashing red LED), which also triggers a test interrupt and stores the fault code in the local log.

[0068] The environmental simulation module simulates varying temperature, humidity, and vibration conditions to test cable performance stability in complex environments. For example, the temperature range is -40°C to +125°C (with a control accuracy of ±0.5°C) and the humidity is 10% to 95% RH (with a control accuracy of ±3% RH). It also supports temperature cycling tests from -40°C to +85°C to -40°C (at a rate of 5°C / min).

[0069] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A multifunctional cable performance test device, comprising a test host (1), an electrical performance test module and a mechanical performance test module, wherein the electrical performance test module is electrically connected to the test host (1) and is used to detect the electrical parameters of the cable; the mechanical performance test module is used to test the mechanical strength of the cable, and is characterized in that: The test host (1) is provided with a connection base (2) for connecting cables of different specifications and a functional base (3) for connecting different electrical performance tests, wherein the connection base (2) is fixedly connected to the top of the functional base (3); the connection base (2) is provided with a plurality of interfaces for cables of different specifications along its circumference, and each interface is provided with a fixing assembly for fixing the cables; The fixing assembly comprises a plurality of connecting plates (4) fixedly connected to the connecting base (2) in a circumferential direction, and the connecting plates (4) are symmetrically hinged with fixed arms (5); the connecting plates (4) are slidably matched with moving blocks (6), and the moving blocks (6) pass through the fixed arms (5) and are slidably matched with the fixed arms (5); the connecting plates (4) and the fixed arms (5) are both provided with moving grooves for the moving blocks (6) to slide, and when the moving blocks (6) slide, they can drive the fixed arms (5) to rotate around the hinge points between the moving blocks and the connecting plates (4); a driving assembly for driving the moving blocks (6) to move is provided on the connecting base (2); when a cable is inserted from the interface, the driving assembly is triggered to operate, and the fixed arms (5) generate a clamping force on the cable through the moving blocks (6).

2. The multifunctional cable performance testing device according to claim 1, characterized in that: The driving assembly comprises a plurality of slide rods (7) slidably connected to the connecting plate (4), one end of each slide rod (7) is fixedly connected to the moving block (6); the other end of each slide rod (7) passes through the connecting base (2) and is fixedly connected to a push block (8), and the end of each push block (8) away from the slide rod (7) is provided with a wedge surface; and a rebound assembly for driving the slide rod (7) to return is provided on the connecting plate (4).

3. The multifunctional cable performance testing device according to claim 2, characterized in that: The rebound component comprises a plurality of tension springs (9) fixedly connected to the inner wall of the movable groove, and one end of the tension spring (9) away from the movable groove is fixedly connected to the slide rod (7).

4. The multifunctional cable performance testing device according to claim 3, characterized in that: The functional base (3) is fixedly connected to a plurality of slot plates (10) along its circumference, and the slot plates (10) are each provided with a first plug (11) and a second plug (12); the first plugs (11) are each electrically connected to an interface, and the second plugs (12) are respectively electrically connected to different electrical performance test areas; and the functional base (3) is provided with a moving component for driving the first plugs (11) and the second plugs (12) to be electrically connected to each other.

5. The multifunctional cable performance testing device according to claim 4, characterized in that: The moving assembly comprises a cam (13) rotatably engaged with the functional base (3), a handle (18) being fixedly connected to the cam (13), a first plug (11) being fixedly connected to the slot plate (10), a second plug (12) being slidably engaged with the slot plate (10), a connecting rod (14) being fixedly connected to each of the second plugs (12), a contact block (15) being fixedly connected to each of the ends of the connecting rods (14) away from the second plug (12), and a contact block (15) being slidably connected to the functional base (3), the cam (13) being able to drive the second plug (12) to move and engage with the first plug (11) when in contact with the contact block (15), and a pull-back assembly for driving the second plug (12) to return to its original position being provided on each of the slot plates (10).

6. The multifunctional cable performance testing device according to claim 5, characterized in that: The pullback assembly comprises a plurality of springs (16) fixedly connected to the outer wall of the first plug (11), and one end of the spring (16) away from the first plug (11) is fixedly connected to the outer wall of the second plug (12).

7. The multifunctional cable performance testing device according to claim 6, characterized in that: The electrical performance test module includes the following units: A high-frequency signal generating unit is used to input a high-frequency signal into the cable to detect the transmission performance of the cable in a high-frequency environment; The signal analysis unit is connected to the high-frequency signal generating unit and receives the reflected signal after the high-frequency signal is input; the received reflected signal is analyzed to obtain the high-frequency characteristic parameters of the cable attenuation and impedance.

8. The multifunctional cable performance testing device according to claim 7, characterized in that: The mechanical properties testing module includes the following units: Tensile test unit, used to measure the tension applied to the cable and set different tension test procedures; The bending test unit is used to test cables at different bending degrees to simulate actual usage scenarios.

9. The multifunctional cable performance testing device according to claim 8, characterized in that: It also includes an automatic test program module and a fault diagnosis and alarm module; the automatic test program module is used to preset the test process through the operation interface, and the test host (1) automatically controls each test unit to perform tests in sequence according to the preset program; and automatically adjusts the parameters of subsequent tests according to the type of cable and the preliminary test results; The fault diagnosis and alarm module is used to monitor the working status of each unit in real time during the test process. When an abnormality occurs, an alarm is issued and fault information is displayed.

10. The multifunctional cable performance testing device according to claim 9, characterized in that: It also includes an environmental simulation module, which is used to simulate different environmental conditions of temperature, humidity and vibration to test the performance stability of cables in complex environments.

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