A low-voltage multifunctional test platform

Abstract

This utility model discloses a multi-functional test bench for low-voltage systems, relating to the field of testing technology. It includes: a cabinet; a multi-degree-of-freedom monitoring unit located on one side of the top of the cabinet; a test bench located on the other side of the top of the cabinet; a hydraulic lifting platform located on the top of the cabinet, between the multi-degree-of-freedom monitoring unit and the test bench; and a telescopic guide rail located on the top side of the cabinet near the test bench, with a fully automatic withstand voltage tester mounted on top of the telescopic guide rail. This utility model, by adding a hydraulic lifting platform, a multi-degree-of-freedom monitoring unit, an expandable test bench design, and a fully automatic withstand voltage tester, and possessing functions such as remote four-remote testing and circuit breaker replacement and maintenance, constructs a reliable and efficient testing platform. It integrates and optimizes the functions and advantages of conventional testing platforms and tools, adopting a modular and expandable design, resulting in low manufacturing costs, an aesthetically pleasing appearance, and convenient installation.

Description

Technical Field

[0001] This utility model relates to the field of testing and experimental technology, and more specifically, to a low-voltage complete multi-functional testing and experimental bench. Background Technology

[0002] Test benches can generally be categorized into mechanical performance test benches, electrical / electronic test benches, fluid test benches, and environmental simulation test benches. They primarily consist of a mechanical structural frame, power and load systems, measurement and sensor systems, control systems, data management and analysis systems, auxiliary systems, and communication and integration architectures. Due to their high degree of specialization, precision and repeatability, safety and reliability, flexibility and scalability, and visualization capabilities, they are widely used.

[0003] Component testing is a crucial and essential step in the product manufacturing process. It ensures that component parameters meet design specifications, preventing circuit malfunctions caused by parameter deviations. Aging tests and environmental tests (high temperature, low temperature, humidity, etc.) screen for defective components, reducing the risk of early failure, extending product lifespan, and improving product reliability. Early detection of defective components also prevents complete rework or scrapping due to component failures during subsequent assembly or use, minimizing losses and reducing production costs.

[0004] A single low-voltage complete test bench has significant limitations. In actual product testing, multiple test devices often need to be used in conjunction, sometimes requiring additional tools, which greatly affects work efficiency. It cannot meet the testing requirements of components and equipment in a way that is suitable for specific conditions.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a low-voltage complete multi-functional test bench to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows: A multi-functional test bench for low-voltage systems includes: a cabinet; a multi-degree-of-freedom monitoring unit located on one side of the top of the cabinet; a test bench located on the other side of the top of the cabinet; a hydraulic lifting platform located on the top of the cabinet and between the multi-degree-of-freedom monitoring unit and the test bench; and a telescopic guide rail located on the top of the cabinet near the test bench, with a fully automatic withstand pressure tester mounted on the top of the telescopic guide rail.

[0008] Furthermore, to improve the portability of the test bench and make it easy to move to the test area, reducing the difficulty and workload of manual operation, a push-pull handle is provided on the top of the side of the cabinet away from the telescopic guide rail, and lockable casters are provided at the four corners of the bottom of the cabinet.

[0009] Furthermore, to allow for selective testing based on multi-dimensional requirements, suitable monitoring devices can be selected, including accessories such as partial discharge testers, decibel meters, and thermometers, which can detect parameters such as partial discharge, noise, and temperature. The multi-degree-of-freedom monitoring unit includes a hydraulic telescopic rod located at the top of the cabinet, with a universal joint at the top of the hydraulic telescopic rod and a mounting column at the top of the universal joint; an outer limit switch is fitted on the outside of the universal joint, and a locking knob is located on one side of the outer limit switch; an upper and lower movable shaft is located at the top of the mounting column, with a monitoring device at the top of the upper and lower movable shaft, and a locking knob is located on one side of the upper and lower movable shaft.

[0010] Furthermore, to assist testers in climbing to achieve the maintenance and replacement of circuit breakers, the hydraulic lifting platform includes a lifting and receiving cavity opened at the top of the cabinet, a hydraulic lift is installed at the bottom of the lifting and receiving cavity, and a lifting platform is installed at the top of the hydraulic lift.

[0011] Furthermore, in order to realize tests such as electric lifting elevator, circuit breaker opening and closing detection, and withstand voltage test, the number of operators and installers can be reduced and the testing efficiency can be improved. The test bench end face is equipped with miniature circuit breaker, modular five-hole panel socket, voltage pointer meter, circuit breaker opening and closing indicator light and circuit breaker opening and closing button in sequence; the test end interface is set on the back of the test bench.

[0012] Furthermore, to assist operators in climbing the hydraulic lifting platform and improve its user-friendliness, multiple equally spaced pull-out foot pedals are installed on one side of the cabinet and below the telescopic guide rail.

[0013] Furthermore, in order to enable the splicing and use of multiple test benches by connecting multiple expandable hinges, multiple equidistant reserved expansion holes are provided on both sides of the back of the cabinet. Expandable hinges are provided on the outside of the reserved expansion holes, and two different cabinets are connected by expandable hinges.

[0014] The beneficial effects of this utility model are as follows: 1. By adding a hydraulic lifting platform, a multi-degree-of-freedom monitoring unit, an expandable test bench design, and a fully automatic withstand voltage tester, and possessing functions such as remote four-remote testing and circuit breaker replacement and maintenance, a reliable and efficient testing platform has been constructed. It integrates and optimizes the functions and advantages of conventional testing platforms and tools, adopting a modular and expandable design, resulting in low manufacturing costs, an aesthetically pleasing appearance, and convenient installation. This improves the circuit breaker's installation, temperature, partial discharge, and closing / opening noise testing capabilities, as well as its adaptability to various testing environments. When replacing, installing, and testing circuit breakers, utilizing the functional advantages of this invention, such as the electric lifting platform, closing / opening detection, and withstand voltage tester, can reduce the number of operators and installers, thereby improving testing efficiency.

[0015] 2. The hydraulic lifting platform helps testers climb to higher positions with a single click, greatly reducing physical exertion and time costs; it can also replace the circuit breaker trolley for circuit breaker replacement; and it can prevent accidental falls caused by testers or circuit breaker replacements.

[0016] 3. By setting up a multi-degree-of-freedom monitoring unit, safety tests such as electric arc, noise, and temperature rise can be performed simultaneously. It integrates infrared thermal imaging, audio acquisition, and sensors, reducing the number of devices and lowering deployment costs.

[0017] 4. The scalable modular design allows for simultaneous testing of multiple components, enabling flexible combinations and simultaneous testing of products of different specifications; it also saves space and improves utilization. It offers advantages such as economic efficiency, cost reduction, aesthetic appeal, and high compatibility.

[0018] 5. The split telescopic guide rail design provides greater flexibility, allowing testers to install more modular testing tools inside; it can be flexibly combined to adapt to diverse needs, while also facilitating maintenance and upgrades, thus saving space and costs.

[0019] 6. The fully automatic withstand voltage tester can meet the withstand voltage testing requirements of some components, and can complete the withstand voltage test efficiently, automatically and with high precision. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a low-voltage complete multi-functional test bench according to an embodiment of the present utility model; Figure 2This is a front structural schematic diagram of a low-voltage complete multi-functional test bench according to an embodiment of the present utility model; Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 yes Figure 3 Enlarged view of a portion of point B in the middle; Figure 5 This is one of the side structural schematic diagrams of a low-voltage complete multi-functional test bench according to an embodiment of the present utility model; Figure 6 This is a second side structural schematic diagram of a low-voltage complete multi-functional test bench according to an embodiment of the present utility model; Figure 7 yes Figure 6 Enlarged view of a section at point C; Figure 8 This is a schematic diagram of the back structure of a low-voltage complete multi-functional test bench according to an embodiment of the present utility model; Figure 9 yes Figure 8 Enlarged view of a section at point D.

[0022] In the picture: 1. Cabinet; 2. Multi-degree-of-freedom monitoring unit; 201. Hydraulic telescopic rod; 202. Universal ball joint; 203. Mounting column; 204. Ball joint outer limit switch; 205. Locking knob; 206. Up and down moving shaft; 207. Monitoring device; 208. Locking knob; 3. Test bench; 4. Hydraulic lifting platform; 401. Lifting cavity; 402. Hydraulic lift; 403. Lifting platform; 5. Telescopic guide rail; 6. Fully automatic withstand voltage tester; 7. Push-pull handle; 8. Lockable universal casters; 9. Miniature circuit breaker; 10. Modular five-hole panel socket; 11. Voltage pointer meter; 12. Circuit breaker closing / opening indicator light; 13. Circuit breaker closing / opening button; 14. Test terminal interface; 15. Pull-out foot pedal; 16. Reserved expansion hole; 17. Expandable hinge. Detailed Implementation

[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present invention, a multifunctional test bench for low-voltage complete sets is provided.

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-8 As shown, the low-voltage multi-functional test bench according to an embodiment of the present invention includes: a cabinet 1; a multi-degree-of-freedom monitoring unit 2, disposed on one side of the top of the cabinet 1; a test bench 3, disposed on the other side of the top of the cabinet 1; a hydraulic lifting platform 4, disposed on the top of the cabinet 1 and located between the multi-degree-of-freedom monitoring unit 2 and the test bench 3; and a telescopic guide rail 5, disposed on the top of the side of the cabinet 1 near the test bench 3, and a fully automatic withstand pressure tester 6 is disposed on the top of the telescopic guide rail 5.

[0026] By utilizing the aforementioned technical solution, and by adding a hydraulic lifting platform 4, a multi-degree-of-freedom monitoring unit 2, an expandable test bench design, and a fully automatic withstand voltage tester 6, along with functions such as remote four-way testing and circuit breaker replacement and maintenance, a reliable and efficient testing platform has been constructed. This platform integrates and optimizes the functions and advantages of conventional testing platforms and tools, adopting a modular and expandable design, resulting in low manufacturing costs, an aesthetically pleasing appearance, and convenient installation. This improves the circuit breaker's installation, temperature, partial discharge, and closing / opening noise testing capabilities, as well as its adaptability to various testing environments. When replacing, installing, and testing circuit breakers, the functional advantages of this invention, such as the electric lifting platform, closing / opening detection, and withstand voltage tester, can reduce the number of operators and installers, improving testing efficiency. The hydraulic lifting platform 4 allows testing personnel to ascend with a single click, significantly reducing physical exertion and time costs; it can also replace the circuit breaker trolley for circuit breaker replacement; and it can prevent accidental falls by testing personnel during circuit breaker replacement. By setting up a multi-degree-of-freedom monitoring unit 2, safety tests such as arc, noise, and temperature rise can be performed simultaneously. It integrates infrared thermal imaging, audio acquisition, and sensors, reducing the number of devices and lowering deployment costs. The expandable cabinet design allows for simultaneous testing of multiple components, enabling flexible combinations and simultaneous testing of products of different specifications; it also saves space and improves utilization. It boasts advantages such as economic efficiency, cost reduction, aesthetic appeal, and high compatibility. The use of a split-type telescopic guide rail 5 provides greater scalability, allowing testers to install more modular testing tools internally; it allows for flexible combinations to adapt to diverse needs, while also facilitating maintenance and upgrades, saving space and costs. The fully automatic withstand voltage tester 6 can meet the withstand voltage testing requirements of some components, efficiently, automatically, and with high precision completing withstand voltage tests.

[0027] In one embodiment, for the cabinet 1, a push-pull handle 7 is provided on the top of the side of the cabinet 1 away from the telescopic guide rail 5, and lockable casters 8 are provided at the four corners of the bottom of the cabinet 1, thereby improving the portability of the test bench, which can be flexibly pushed to the test area, reducing the difficulty and workload of manual operation.

[0028] In one embodiment, the multi-degree-of-freedom monitoring unit 2 includes a hydraulic telescopic rod 201 mounted on the top of the cabinet 1. A universal ball joint 202 is mounted on the top of the hydraulic telescopic rod 201, and a mounting post 203 is mounted on the top of the universal ball joint 202. An outer limiter 204 is fitted around the outer side of the universal ball joint 202, and a locking knob 205 is located on one side of the outer limiter 204. An upper and lower movable shaft 206 is mounted on the top of the mounting post 203, and a monitoring device 207 is mounted on the top of the upper and lower movable shaft 206. A locking knob 208 is located on one side of the upper and lower movable shaft 206. Thus, according to multi-dimensional testing requirements, a suitable monitoring device 207 can be selectively installed, including accessories such as a partial discharge tester, a decibel meter, and a thermometer, to detect parameters such as partial discharge, noise, and temperature.

[0029] In one embodiment, the hydraulic lifting platform 4 includes a lifting and receiving cavity 401 opened at the top of the cabinet 1. A hydraulic lift 402 is provided at the bottom of the lifting and receiving cavity 401, and a lifting platform 403 is provided at the top of the hydraulic lift 402, thereby assisting test personnel to climb to a height and realize the maintenance and replacement of the circuit breaker.

[0030] In one embodiment, the test bench 3 is provided with a miniature circuit breaker 9, a modular five-hole panel socket 10, a voltage pointer meter 11, a circuit breaker closing / opening indicator light 12, and a circuit breaker closing / opening button 13 on its end face; the test bench 3 is provided with a test terminal interface 14 on its back, thereby realizing tests such as electric lifting, closing / opening detection, and withstand voltage testing, which can reduce the number of operators and installers and improve the efficiency of testing work.

[0031] In one embodiment, for the cabinet 1, a plurality of equally spaced pull-out foot pedals 15 are provided on one side of the cabinet 1 and below the telescopic guide rail 5, thereby assisting the operator to climb onto the hydraulic lifting platform 4 and improving the level of humanization.

[0032] In one embodiment, for the cabinet 1, multiple equidistant reserved expansion holes 16 are provided on both sides of the back of the cabinet 1, and expandable hinges 17 are provided on the outside of the reserved expansion holes 16. Two different cabinets 1 are connected by expandable hinges 17, so that multiple test benches can be spliced ​​and used by connecting multiple expandable hinges 17.

[0033] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0034] In practical applications, this test bench is equipped with a pull-out foot pedal 15 and a hydraulic lifting platform 4, allowing for remote access via remote control. Operators can use the pull-out foot pedal 15 to climb the test platform, eliminating the need for a separate ladder. The lockable casters 8 at the bottom prevent falls due to platform movement during climbing. Simultaneously, the hydraulic lifting platform 4 assists in raising and replacing circuit breakers, and can also replace the lifting trolley. The same applies to the KYN28 central switchgear; it can replace the handcart.

[0035] The hydraulic lifting platform 4 design allows testing personnel to quickly and safely reach the required height, saving time and labor costs associated with setting up ladders or using lifting trolleys. It also effectively ensures the safety of high-altitude operations, improving the overall efficiency and reliability of the testing work. Furthermore, remote control operation simplifies the equipment's operation, making the testing process more convenient and intelligent.

[0036] The hydraulic press used in this test bench is made of high-strength cast iron to ensure rigidity and resistance to deformation. The main cylinder should be made of high-quality alloy steel, with the inner wall precision ground or hard chrome plated, making it wear-resistant, high-pressure resistant, and with a service life of ≥1 million cycles.

[0037] Component testing often requires performance and safety tests such as arc resistance, noise reduction, and temperature rise. Most test units are relatively simple, while safety testing requires multiple test units, which is cumbersome. This testing bench integrates all test units, allowing testers to work more efficiently. It achieves multi-functional integration, offering multiple uses in one machine and improving testing efficiency.

[0038] Depending on the multi-dimensional testing requirements, appropriate monitoring devices 207 can be selected, including accessory equipment such as partial discharge testers, noise testers, decibel meters, and thermometers.

[0039] The HCT-9200 series partial discharge tester installed on this test bench, based on the physical effects of discharge, captures and analyzes signals through sensors. It can detect weak partial discharge signals in the range of 1pC to 100nC with a measurement accuracy of ±5%, and can accurately identify PD signals in environments with strong electromagnetic interference. It meets the certification standards of IEC 60270 and GB / T 7354.

[0040] The noise meter installed on this test bench is an AWA6228+ model with high accuracy. It measures noise levels in the surrounding environment and equipment, achieving Class 1 (error ±0.7dB), covering a frequency range of 20Hz to 20kHz, with a flatness deviation ≤±1dB. It can also connect via Bluetooth / Wi-Fi to transmit data to a computer or mobile app. With IP54 protection, it is suitable for both indoor and outdoor use.

[0041] The DT-8866H thermometer installed on this test bench can measure the surface temperature of objects via laser aiming, with a measurement range of -30℃ to 500℃ and a basic error of ±1℃. It can record ≥100 sets of data and can transmit data via USB / Bluetooth / Wi-Fi. It has IP65 protection and is suitable for both indoor and outdoor use.

[0042] Instructions for use of multi-degree-of-freedom monitoring unit 2: 1. Use the hydraulic telescopic rod 201 to raise to a suitable height; 2. Use the universal ball joint 202 to select a suitable angle, which can rotate freely 360° and lock at a suitable angle; 3. Use the top monitoring device 207 to rotate up and down to a suitable position and lock the knob to perform the test.

[0043] When there are too many test items for a product to be tested, and a single multi-functional test platform cannot meet the testing requirements, multiple test platforms with different functions can be connected using this extended design to perform batch flow testing on multiple products, improving testing efficiency. The connection device uses custom high-strength hinges, with multiple sets of expandable hinges 17 installed on the back of the test platform. Each set of expandable hinges 17 can be detached individually and is normally fixed at a 90-degree angle at the corner of the test platform cabinet 1. When multiple platforms need to be used together, the side hinges of the platform can be removed and fixed at a 180-degree angle to another cabinet.

[0044] If certain specialized testing instruments are used in the product testing, they can be directly and modularly installed into the multi-functional testing platform. This eliminates the need for separate tools and improves testing efficiency.

[0045] The guide rails used in this test bench are made of stainless steel and have undergone surface hardening treatment to improve wear resistance. The slider uses a ball bearing circulation structure, which features low friction, high precision, and is suitable for high-speed, light-load equipment. The telescopic guide rail 5 is normally retracted into the cabinet 1 and fixed to the back of the control panel. When a module needs to be installed, the guide rail is popped out by pressing the side, and a retaining rail is installed on the telescopic guide rail 5, which can directly fix the equipment to the retaining rail.

[0046] In summary, by utilizing the above-mentioned technical solution of this utility model, the hydraulic lifting platform 4 helps testers ascend with a single click, significantly reducing physical exertion and time costs; it can also replace the circuit breaker trolley for circuit breaker replacement; and it can prevent accidental falls by testers during circuit breaker replacement. By setting up a multi-degree-of-freedom monitoring unit 2, safety tests such as arc, noise, and temperature rise can be performed simultaneously. Integrating infrared thermal imaging, audio acquisition, and sensors reduces the number of devices and lowers deployment costs. The expandable modular design allows for simultaneous testing of multiple components, enabling flexible combinations and simultaneous testing of products of different specifications; it also saves space and improves utilization. It has advantages such as economic efficiency, cost reduction, aesthetic appeal, and high compatibility. The use of a split telescopic guide rail 5 provides greater extensibility, allowing testers to install more modular testing tools internally; it allows for flexible combinations to adapt to diverse needs, while also facilitating maintenance and upgrades, saving space and costs. The fully automatic withstand voltage tester 6 can meet the withstand voltage testing requirements of some components, efficiently and automatically completing withstand voltage tests with high precision.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-functional test bench for low-voltage complete sets, characterized in that, include: Cabinet (1); A multi-degree-of-freedom monitoring unit (2) is installed on one side of the top of the cabinet (1); The test bench (3) is located on the other side of the top of the cabinet (1); A hydraulic lifting platform (4) is installed at the top of the cabinet (1) and located between the multi-degree-of-freedom monitoring unit (2) and the test bench (3); Telescopic guide rail (5) is set on the top of the cabinet (1) near the test bench (3), and a fully automatic pressure tester (6) is set on the top of the telescopic guide rail (5).

2. The multi-functional test bench for low-voltage complete sets of equipment according to claim 1, characterized in that, A push-pull handle (7) is provided on the top of the side of the cabinet (1) away from the telescopic guide rail (5), and lockable casters (8) are provided at the four corners of the bottom of the cabinet (1).

3. The multi-functional test bench for low-voltage complete sets of equipment according to claim 1, characterized in that, The multi-degree-of-freedom monitoring unit (2) includes a hydraulic telescopic rod (201) installed at the top of the cabinet (1), a universal ball joint (202) is installed at the top of the hydraulic telescopic rod (201), and a mounting column (203) is installed at the top of the universal ball joint (202). The universal ball joint (202) is fitted with a ball joint outer limiter (204) on the outside, and a locking knob (205) is provided on one side of the ball joint outer limiter (204). The top of the mounting post (203) is provided with an upper and lower movable shaft (206), the top of the upper and lower movable shaft (206) is provided with a monitoring device (207), and a locking knob (208) is provided on one side of the upper and lower movable shaft (206).

4. The multi-functional test bench for low-voltage complete sets of equipment according to claim 1, characterized in that, The hydraulic lifting platform (4) includes a lifting and receiving cavity (401) opened on the top of the cabinet (1), a hydraulic lift (402) is provided at the bottom of the lifting and receiving cavity (401), and a lifting platform (403) is provided at the top of the hydraulic lift (402).

5. The multi-functional test bench for low-voltage complete sets of equipment according to claim 1, characterized in that, The test bench (3) is provided with a miniature circuit breaker (9), a modular five-hole panel socket (10), a voltage pointer meter (11), a circuit breaker closing and opening indicator light (12), and a circuit breaker closing and opening button (13) in sequence on its end face. The test stand (3) has a test terminal interface (14) on its back.

6. The multifunctional test bench for low-voltage complete sets of equipment according to claim 1, characterized in that, On one side of the cabinet (1) and below the telescopic guide rail (5), there are multiple pull-out foot pedals (15) arranged at equal intervals.

7. A multi-functional test bench for low-voltage complete sets of equipment according to claim 1 or 6, characterized in that, The cabinet (1) has multiple equidistant pre-reserved expansion holes (16) on both sides of its back. An expandable hinge (17) is provided on the outside of the pre-reserved expansion holes (16). Two different cabinets (1) are connected by the expandable hinge (17).

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