High-frequency transformer withstand voltage test equipment

Abstract

The invention belongs to the technical field of pressure testing equipment, and particularly relates to high-frequency transformer withstand voltage testing equipment which comprises a workbench, a base is welded to the upper surface of the workbench, a driving motor is welded to one side of the base, the output end of the driving motor is in spline connection with a roller A, and the outer surface of the roller A is meshed with a conveying belt. A groove A for fixedly mounting a magnetic sheet is formed in the upper surface of the conveyor belt, and a test plate is magnetically attracted to the upper surface of the magnetic sheet; through the cooperation of the structure and the arrangement of the jacking mechanism, when the high-frequency transformer is subjected to voltage measurement, the connector of the transformer needs to be placed in the test hole of the test plate for insertion, the transformer is tested, but after the test is finished, the jacking mechanism is used for directly jacking out the transformer, so that the mechanical impact on the transformer can be reduced, and the test efficiency is improved. The risk of damaging the transformer or testing equipment is reduced, the jacking mechanism can ensure that the transformer is taken out in a reasonable mode, and subsequent maintenance, inspection and other operations are facilitated.

Description

Technical Field

[0001] This invention belongs to the field of voltage testing equipment technology, specifically a high-frequency transformer withstand voltage testing device. Background Technology

[0002] A high-frequency transformer is an electrical device used for high-frequency power conversion and signal transmission. Compared with traditional transformers, it is mainly used to handle higher frequency currents. Transformers are electrical devices used in power systems for AC voltage conversion, mainly to increase or decrease voltage levels to facilitate power transmission and distribution. High-frequency transformers play an important role in modern power electronics technology, and their continuous advancements in design and application have driven the development of various electronic devices. The withstand voltage test of a high-frequency transformer is an important process to ensure its insulation performance and safety. The withstand voltage test equipment for high-frequency transformers is an important tool for evaluating the insulation performance of transformers under high-frequency conditions. The withstand voltage test of a high-frequency transformer is an important step to ensure the safe operation of the equipment. Through a systematic testing process, potential risks can be effectively identified and eliminated, ensuring the stability of the equipment in high-frequency power systems.

[0003] A Chinese invention patent, CN 118926136 B, discloses an intelligent high-frequency transformer withstand voltage testing device. The key technical points are: when using a tester to intelligently correct misplaced test objects, an alignment detection module detects the alignment status of the test object with the detection holes on the tester surface. Based on the detected alignment, targeted correction is performed. Alignment is achieved through the cooperation of electromagnetic strips and coils, follower gears, and a support plate. After alignment, the electromagnetic strip attracts two magnetic racks, the follower gears expand outwards, and the test object falls onto the tester surface for testing. After testing, the object is transported to either the good product area or the scrap area. Furthermore, the cooperation of shafts and miniature electric extension rods allows the test object to enter the good product area or scrap area vertically when leaving the tester surface, reducing the cross-sectional area occupied by the good product area or scrap area. This allows for at least one additional testing line to be added within the limited testing platform, improving testing efficiency.

[0004] However, the above-mentioned technologies often have the following drawbacks: When testing the voltage of a high-frequency transformer, the test pins of the high-frequency transformer need to be inserted into the holes of the test board to perform a withstand voltage test. However, after the test is completed, the test pins of the transformer need to be removed from the holes. If a robotic arm is used to remove them, the test pins of the transformer may be damaged during the removal process, affecting the normal use of the high-frequency transformer. However, if they are removed manually, it may increase the safety risks for operators in a high-voltage environment, especially when handling heavy equipment, which may easily lead to electric shock or physical injury. It is not convenient to automatically eject the high-frequency transformer from the test board to reduce damage to the transformer. During the test, the test pins change according to the transformer model, and the test device is not convenient to adapt to all test pins. It is not convenient to snap the test contacts together according to the thickness of the test pins to make the test more stable and the results more accurate.

[0005] Therefore, the present invention provides a high-frequency transformer withstand voltage testing device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The high-frequency transformer withstand voltage testing equipment of the present invention includes a workbench, a base welded to the upper surface of the workbench, a drive motor welded to one side of the base, an A roller splined to the output end of the drive motor, a conveyor belt meshing with the outer surface of the A roller, an A groove for fixing and installing a magnetic sheet on the upper surface of the conveyor belt, a test plate magnetically attracted to the upper surface of the magnetic sheet, a snap-fit ​​mechanism welded to both sides of the test plate, a test hole opened on the surface of the test plate, and a lifting mechanism welded inside the test hole;

[0008] The lifting mechanism includes a heating element, the bottom of which is fixedly connected to the inside of the test hole. A magnetic plate A is welded to the upper surface of the heating element, a memory spring is welded to the upper surface of the magnetic plate A, a magnetic plate B is welded to one end of the memory spring, and a placement slot plate is welded to the upper surface of the magnetic plate B.

[0009] As a preferred embodiment of the present invention, the adjustment mechanism includes a plug sleeve, the bottom of which is welded to the inside of the placement slot plate. A test piece A is welded to one side of the inside of the plug sleeve, and a test piece B is snapped onto the other side of the inside of the plug sleeve. A tension rod is welded to the outer surface of the test piece B, and a miniature electric push rod is fixedly connected to one end of the tension rod.

[0010] As a preferred technical solution of the present invention, the snap-fit ​​mechanism includes a rotating component A, one end of which is fixedly connected to one side of the test plate, and a telescopic rod is welded to the other end of the rotating component A. A rotating component B is welded to one end of the telescopic rod, and a clamping plate is welded to one end of the rotating component B. An anti-slip groove is provided on one side of the clamping plate, and a spring is welded to the bottom of one side of the clamping plate. A baffle is welded to one end of the spring.

[0011] As a preferred embodiment of the present invention, the inner sidewall of the conveyor belt is engaged with a B roller, and the outer surface of the B roller is welded with toothed blocks.

[0012] As a preferred technical solution of the present invention, support frames are welded to both sides of the upper surface of the workbench, a sliding groove is provided in the middle of the support frame, a magnetic rail is welded to the inner side wall of the sliding groove, a robotic arm is slidably connected inside the sliding groove, a sensor is welded to the upper surface of the robotic arm, a cover plate is welded to the upper surface of the support frame, and transparent plates are welded to all four sides of the support frame.

[0013] As a preferred embodiment of the present invention, the front of the workbench is hinged to a door, and a handle is welded to the front of the door, with a B-groove on the surface of the handle.

[0014] As a preferred embodiment of the present invention, a display screen is fixedly mounted on the surface of the workbench, control buttons are welded on both sides of the surface of the workbench near the display screen, and an alarm is welded on the bottom of the surface of the workbench near the display screen.

[0015] The beneficial effects of this invention are as follows:

[0016] The high-frequency transformer withstand voltage testing equipment described in this invention features a lifting mechanism. When testing a high-frequency transformer, the transformer's connectors are inserted into the test holes on the test plate. After testing, the transformer is directly lifted out using the lifting mechanism, reducing mechanical impact and the risk of damage to the transformer or testing equipment. The lifting mechanism ensures the transformer is removed in a reasonable manner, facilitating subsequent maintenance, inspection, and other operations. Furthermore, a snap-fit ​​mechanism allows for secure connection of different transformer models when the transformer is placed on the test plate during voltage testing. The locking mechanism securely fixes the transformer, ensuring it does not shift or shake during voltage testing, thus guaranteeing the accuracy of the test results. It also reduces direct contact between operators and high-voltage equipment, lowering the risk of electric shock and other safety accidents, and enhancing operational safety. Furthermore, the adjustable mechanism allows for the adjustment of the internal test contacts to different transformer models, ensuring a tight fit between the test contacts and test pins. This increases stability during testing, prevents poor contact that could lead to errors in the test results, and improves the accuracy of the test results. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of a high-frequency transformer withstand voltage testing device;

[0019] Figure 2 This is a schematic diagram of the support frame in a high-frequency transformer withstand voltage testing device;

[0020] Figure 3 This is a schematic diagram of the base structure in a high-frequency transformer withstand voltage testing device;

[0021] Figure 4 This is a schematic diagram of the conveyor belt structure in a high-frequency transformer withstand voltage testing device;

[0022] Figure 5 This is a schematic diagram of the structure of a test board in a high-frequency transformer withstand voltage testing device;

[0023] Figure 6 This is a schematic diagram of the installation of a memory spring in a high-frequency transformer withstand voltage testing device;

[0024] Figure 7 This is a schematic diagram of the structure of a spring in a high-frequency transformer withstand voltage testing device.

[0025] In the diagram: 1. Workbench; 2. Base; 3. Drive motor; 4. Roller A; 5. Conveyor belt; 6. Magnetic sheet; 7. Test plate; 8. Test hole; 9. Heating element; 10. Magnetic plate A; 11. Memory spring; 12. Magnetic plate B; 13. Placement slot plate; 14. Rotating component A; 15. Telescopic rod; 16. Rotating component B; 17. Clamping plate; 18. Spring; 19. Baffle; 20. Roller B; 21. Support frame; 22. Magnetic track; 23. Robotic arm; 24. Sensor; 25. Box door; 26. Display screen; 27. Control button; 28. Insert sleeve; 29. ​​Test connector A; 30. Test connector B; 31. Tension rod; 32. Miniature electric push rod; 33. Cover plate. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0027] Reference Figure 1 - Figure 7 This invention provides two technical solutions:

[0028] Example 1:

[0029] A high-frequency transformer withstand voltage testing device includes a workbench 1, a base 2 welded to the upper surface of the workbench 1, a drive motor 3 welded to one side of the base 2, an A roller 4 splinedly connected to the output end of the drive motor 3, a conveyor belt 5 meshing with the outer surface of the A roller 4, an A groove for fixing and installing a magnetic sheet 6 on the upper surface of the conveyor belt 5, a test plate 7 magnetically attracted to the upper surface of the magnetic sheet 6, a snap-fit ​​mechanism welded to both sides of the test plate 7, a test hole 8 opened on the surface of the test plate 7, and a lifting mechanism welded inside the test hole 8.

[0030] The lifting mechanism includes a heating element 9, the bottom of which is fixedly connected to the inside of the test hole 8. A magnetic plate A 10 is welded to the upper surface of the heating element 9, a memory spring 11 is welded to the upper surface of the magnetic plate A 10, a magnetic plate B 12 is welded to one end of the memory spring 11, and a placement slot plate 13 is welded to the upper surface of the magnetic plate B 12. When testing the high-frequency transformer using this lifting mechanism, the transformer's connector needs to be inserted into the test hole 8 of the test plate 7 for testing. However, after the test is completed, the lifting mechanism directly pushes the transformer out. This reduces mechanical impact on the transformer, lowering the risk of damaging the transformer or testing equipment. The lifting mechanism ensures the transformer can be removed in a reasonable manner, facilitating subsequent maintenance, inspection, and other operations. After the transformer is tested, the heating element 9 is turned off, the temperature of the memory spring 11 drops, it deforms again, and returns to its original shape. Then, using the magnetic repulsion between magnetic plates A 10 and B 12, the placement slot plate 13 is lifted upwards, pushing out the transformer's connector. With the assistance of the robotic arm 23, the transformer is picked up, reducing damage to the transformer.

[0031] The adjustment mechanism includes a plug sleeve 28, the bottom of which is welded to the inside of the placement slot plate 13. A test contact 29 is welded to one side of the inside of the plug sleeve 28, and a test contact 30 is snapped onto the other side of the inside of the plug sleeve 28. A tension rod 31 is welded to the outer surface of the test contact 30, and a miniature electric push rod 32 is fixedly connected to one end of the tension rod 31. Different transformer models have different test pin models. The adjustment mechanism is used to adjust the distance between the internal test contacts and to firmly snap the test pins together, so that the test contacts and test pins fit tightly together. This can increase stability during testing, avoid poor contact, and prevent errors in test results. After the test contacts are firmly snapped together, the accuracy of the test results can be improved.

[0032] The snap-fit ​​mechanism includes a rotating component A 14, one end of which is fixedly connected to one side of the test plate 7. A telescopic rod 15 is welded to the other end of the rotating component A 14. A rotating component B 16 is welded to one end of the telescopic rod 15. A clamping plate 17 is welded to one end of the rotating component B 16. An anti-slip groove is provided on one side of the clamping plate 17, and a spring 18 is welded to the bottom of one side of the clamping plate 17. A baffle 19 is welded to one end of the spring 18. The snap-fit ​​mechanism can securely fasten transformers of different models. Depending on the size of the transformer, the transformer squeezes the clamping plate 17. When the clamping plate 17 opens and closes outward, it drives the spring 18 to pull. Then, through the cooperation of rotating part A 14 and telescopic rod 15, it rotates and stretches. Then, rotating part B 16 is used to tilt the clamping plate 17, so that the transformer can be clamped and fixed by the clamping plate 17. This ensures that the transformer will not be displaced or shaken during the voltage test, thus ensuring the accuracy of the test results. The clamping mechanism can reduce the direct contact between the operator and the high-voltage equipment, reduce the risk of electric shock and other safety accidents, and enhance the safety of operation.

[0033] The inner wall of the conveyor belt 5 is engaged with roller B 20, and the outer surface of roller B 20 is welded with toothed blocks.

[0034] Support frames 21 are welded to both sides of the upper surface of the workbench 1. A slide groove is opened in the middle of the support frame 21. A magnetic rail 22 is welded to the inner wall of the slide groove. A robotic arm 23 is slidably connected inside the slide groove. A sensor 24 is welded to the upper surface of the robotic arm 23. A cover plate 33 is welded to the upper surface of the support frame 21. Transparent plates are welded to all four sides of the support frame 21. When testing the high-frequency transformer, the robotic arm 23 is started. With the cooperation of the sensor 24 and the magnetic rail 22, the robotic arm 23 can move on the support frame 21. The robotic arm 23 clamps the transformer and places it on the test plate 7. The robotic arm 23 can automatically grasp the transformer. Automatic grasping reduces the operator's contact with high voltage or dangerous environments, reduces the safety hazards of electric shock and injury, and enhances the safety of the workplace. It can perform grasping operations quickly and continuously, significantly improve the speed of loading and unloading, reduce the time of manual operation, and improve the overall work efficiency.

[0035] The front of the workbench 1 is hinged to a door 25, and a handle is welded to the front of the door 25. The surface of the handle has a B groove.

[0036] A display screen 26 is fixedly installed on the surface of the workbench 1. Control buttons 27 are welded on both sides of the surface of the workbench 1 near the display screen 26. An alarm is welded on the bottom of the surface of the workbench 1 near the display screen 26. The control buttons 27 can control the operation of the workbench 1 to perform a withstand voltage test on the transformer. The test result can be viewed on the display screen 26 so that personnel can know whether the test is qualified.

[0037] Working principle: When testing a high-frequency transformer, the robotic arm 23 is activated. Utilizing the coordination of the sensor 24 and magnetic rail 22, the robotic arm 23 moves on the support frame 21, clamping the transformer. This automatic gripping reduces operator contact with high-voltage or hazardous environments, lowering the risk of electric shock and injury, and enhancing workplace safety. It allows for rapid and continuous gripping operations, significantly increasing loading and unloading speed, reducing manual operation time, and improving overall work efficiency. The transformer is placed on the test plate 7, which has test holes 8. The transformer's connector is placed in the test holes 8. During transformer placement, the heating element 9 is activated. Heating element 9 heats memory spring 11, causing it to deform and soften as the temperature rises. This facilitates the placement of the transformer into test hole 8. The transformer model then determines the size of the test pin. After the test pin is placed in test hole 8, its connection point inserts into connector sleeve 28. Micro electric push rod 32 is activated, causing tension rod 31 to extend back and forth. Tension rod 31 adjusts the size of test piece B 30 within connector sleeve 28, pressing the test pin close to test piece A 29. This ensures a tight fit between test piece A 29 and test piece B 30, increasing stability during testing and preventing poor contact that could lead to incorrect test results. To address the current error, securing the clamping plate 17 firmly improves the accuracy of the test results. Then, depending on the size of the transformer, the transformer presses against the clamping plate 17. When the clamping plate 17 opens outwards, it pulls the spring 18. This is further stretched by the A rotating component 14 and the telescopic rod 15. The B rotating component 16 then tilts the clamping plate 17, facilitating the clamping and securing of the transformer. This ensures that the transformer will not shift or shake during the pressure test, guaranteeing the accuracy of the test results. Next, the drive motor 3 is started. The rotation of the drive motor 3 drives the A roller 4 to rotate, which in turn drives the conveyor belt 5. As the conveyor belt 5 rotates, the internal B roller 20 also rotates, thus starting the conveyor belt 5 and enabling the transformer to be transported... Belt 5 is used for transport. Press control button 27 to perform a withstand voltage test on the transformer. The test result is displayed on screen 26 so that personnel can know whether the test is qualified. After the transformer test is completed, the heating element 9 is turned off. The temperature of the memory spring 11 drops, and it deforms again, returning to its original shape. Then, using the magnetic repulsion between magnetic plates A 10 and B 12, the placement slot plate 13 is lifted upward, pushing out the transformer's connector. With the help of the robotic arm 23, the transformer is picked up. This reduces the mechanical impact on the transformer and lowers the risk of damaging the transformer or testing equipment. The lifting mechanism ensures that the transformer is removed in a reasonable manner, which is convenient for subsequent maintenance, inspection and other operations, and reduces damage to the transformer.

[0038] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0039] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting the scope of protection of this invention.

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

Claims

1. A high-frequency transformer withstand voltage testing device, characterized in that: The system includes a workbench (1), a base (2) welded to the upper surface of the workbench (1), a drive motor (3) welded to one side of the base (2), an A roller (4) splined to the output end of the drive motor (3), a conveyor belt (5) meshing with the outer surface of the A roller (4), an A groove for fixing and installing a magnetic sheet (6) on the upper surface of the conveyor belt (5), a test plate (7) magnetically attracted to the upper surface of the magnetic sheet (6), a snap-fit ​​mechanism welded to both sides of the test plate (7), a test hole (8) opened on the surface of the test plate (7), and a lifting mechanism welded inside the test hole (8). The lifting mechanism includes a heating element (9), the bottom of which is fixedly connected to the inside of the test hole (8). An A magnetic plate (10) is welded to the upper surface of the heating element (9), a memory spring (11) is welded to the upper surface of the A magnetic plate (10), a B magnetic plate (12) is welded to one end of the memory spring (11), a placement slot plate (13) is welded to the upper surface of the B magnetic plate (12), and an adjustment mechanism is welded to the upper surface of the placement slot plate (13).

2. The high-frequency transformer withstand voltage testing equipment according to claim 1, characterized in that: The adjustment mechanism includes a plug sleeve (28), the bottom of which is welded to the inside of the placement slot plate (13). A test piece (29) is welded to one side of the inside of the plug sleeve (28), and a test piece (30) is snapped into the other side of the inside of the plug sleeve (28). A tension rod (31) is welded to the outer surface of the test piece (30), and a miniature electric push rod (32) is fixedly connected to one end of the tension rod (31).

3. The high-frequency transformer withstand voltage testing equipment according to claim 1, characterized in that: The snap-fit ​​mechanism includes a rotating component A (14), one end of which is fixedly connected to one side of the test plate (7). A telescopic rod (15) is welded to the other end of the rotating component A (14). A rotating component B (16) is welded to one end of the telescopic rod (15). A clamping plate (17) is welded to one end of the rotating component B (16). An anti-slip groove is provided on one side of the clamping plate (17). A spring (18) is welded to the bottom of one side of the clamping plate (17). A baffle (19) is welded to one end of the spring (18).

4. The high-frequency transformer withstand voltage testing equipment according to claim 1, characterized in that: The inner wall of the conveyor belt (5) is engaged with a B roller (20), and the outer surface of the B roller (20) is welded with toothed blocks.

5. The high-frequency transformer withstand voltage testing equipment according to claim 1, characterized in that: Support frames (21) are welded to both sides of the upper surface of the workbench (1). A sliding groove is provided in the middle of the support frame (21). A magnetic rail (22) is welded to the inner side wall of the sliding groove. A robotic arm (23) is slidably connected inside the sliding groove. A sensor (24) is welded to the upper surface of the robotic arm (23). A cover plate (33) is welded to the upper surface of the support frame (21). A transparent plate is welded to all four sides of the support frame (21).

6. The high-frequency transformer withstand voltage testing equipment according to claim 1, characterized in that: The front of the workbench (1) is hinged to a box door (25), and a handle is welded to the front of the box door (25). A B groove is provided on the surface of the handle.

7. The high-frequency transformer withstand voltage testing equipment according to claim 1, characterized in that: A display screen (26) is fixedly installed on the surface of the workbench (1). Control buttons (27) are welded on both sides of the surface of the workbench (1) near the display screen (26). An alarm is welded on the bottom of the surface of the workbench (1) near the display screen (26).

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