A high-frequency transformer voltage-withstanding test device

Abstract

The utility model relates to transformer detection's technical field, in particular to a kind of high-frequency transformer withstand voltage testing device, it is equipped with the synchronous probe plate mobile mechanism of hydraulic pipe connection, synchronous activity can be realized to satisfy pressure test, more stable operation, improve reliability;Including table board, connecting plate, hydraulic cylinder, probe detection board one, guide rod one, constraint carriage, guide rod two, probe detection board two, U type hydraulic pipe, piston and fixing bracket, the table board top side middle part is connected with the connecting plate bottom side, connecting plate is connected with hydraulic cylinder, hydraulic cylinder output end is connected with the middle part of the rear side of probe detection board one, the left and right sides middle part of table board is connected with two groups of constraint carriage respectively, the left and right sides of the rear end of probe detection board one are connected with the front end of a group of guide rod one respectively, the outer wall of each group of guide rod one is connected with the inner wall of two groups of constraint carriage respectively, the inner wall of the outer two groups of constraint carriage is connected with the outer wall of a group of guide rod two respectively.

Description

Technical Field

[0001] This utility model relates to the technical field of transformer testing, specifically a high-frequency transformer withstand voltage testing device. Background Technology

[0002] High-frequency transformers are power transformers that operate at frequencies exceeding intermediate frequencies (10kHz). They are mainly used in high-frequency switching power supplies as high-frequency switching power supply transformers, and are also used in high-frequency inverter power supplies and high-frequency inverter welding machines as high-frequency inverter power supply transformers.

[0003] During its production and processing, a corresponding withstand voltage test is required. For example, a transformer withstand voltage test mechanism with patent publication number CN223362290U has been developed. By setting up an internal transmission component, an external transmission component, a synchronous gear, an internal probe mounting plate, an external probe mounting plate, and a cylinder, it achieves the effects of high speed, low manual labor, high work efficiency, and low cost for testing.

[0004] However, its gears are directly exposed to the outside, making them prone to contamination and jamming, resulting in poor reliability. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a high-frequency transformer withstand voltage testing device with a synchronous probe plate movement mechanism connected by a hydraulic pipe, which can achieve synchronous movement to meet pressure testing requirements, resulting in more stable operation and improved reliability.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a high-frequency transformer withstand voltage testing device, comprising a table, a connecting plate, a hydraulic cylinder, a probe detection plate one, a guide rod one, a constraint slide, a guide rod two, a probe detection plate two, a U-shaped hydraulic pipe, a piston, and a fixing frame. The top center of the table is connected to the bottom center of the connecting plate. A hydraulic cylinder is connected to the connecting plate, and the output end of the hydraulic cylinder is connected to the rear center of the probe detection plate one. Two sets of constraint slides are respectively connected to the middle of the left and right sides of the table. The rear left and right sides of the probe detection plate one... Each set of guide rods is connected to the front end of a set of guide rods. The outer wall of each set of guide rods is connected to the inner wall of the two sets of inner constraint slides. The inner wall of the two sets of outer constraint slides is connected to the outer wall of a set of guide rods. The front sides of the two sets of guide rods are connected to the rear ends of the probe detection plate. The left and right sides of the rear of the top of the table are connected to the bottom of a set of U-shaped hydraulic pipes via a fixing frame. The U-shaped hydraulic pipes contain hydraulic oil, and a set of pistons is slidably installed on both sides inside the U-shaped hydraulic pipes. The two sets of pistons are connected to the rear sides of guide rods one and guide rod two, respectively.

[0007] Preferably, it also includes support legs, with the four corners of the bottom end of the tabletop respectively connected to the top side of a set of support legs.

[0008] Preferably, it also includes a hinge and a protective cover, wherein the rear top of the tabletop is movably connected to the front bottom of the protective cover via the hinge.

[0009] Preferably, it also includes a grip, wherein the rear middle side of the top of the protective cover is connected to the bottom side of the grip.

[0010] Preferably, it also includes a locking handle, a moving pin holder, and a fixed pin holder. The front side of the top of the protective cover is rotatably connected to the bottom side of the locking handle. The output end of the locking handle is connected to one side of the inner end of the moving pin holder. The front side of the top of the table is connected to the bottom side of the fixed pin holder.

[0011] Preferably, it also includes a connector, a movable sleeve, a connecting rod, an inner sleeve, an outer ring, a threaded head, and a limiting nut. The middle right side of the table is movably connected to the inner side of the movable sleeve via the connector. A connecting rod is connected to one side of the outer end of the movable sleeve, and the other end of the connecting rod is connected to the inner sleeve. An outer ring is connected to the front right side of the protective cover, and a threaded head is connected to the middle outer side of the outer ring. The outer side of the threaded head is detachably screwed to the inner side of the limiting nut.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a high-frequency transformer withstand voltage testing device, which has the following beneficial effects: When probe test plate 1 and probe test plate 2 are initially far apart, the high-frequency transformer to be tested is placed between probe test plate 1 and probe test plate 2 on the top of the table. Then, the hydraulic cylinder is operated under the fixation of the connecting plate, which pushes probe test plate 1 forward, thereby driving the two sets of guide rods 1 to slide forward under the constraint of the constraint slide. Under the action of oil pressure inside the U-shaped hydraulic pipe, when the piston connected to guide rod 1 moves forward, the other set of pistons can drive guide rod 2 to move backward. Through the sliding constraint of the constraint slide on guide rod 2, guide rod 2 drives probe test plate 2 to move backward, so that probe test plate 2 and probe test plate 1 work together to perform the withstand voltage test of the high-frequency transformer. A synchronous probe plate moving mechanism connected by hydraulic pipe is set up to achieve synchronous movement to meet the pressure test, making the operation more stable and improving reliability. Attached Figure Description

[0013] Figure 1 This is an axial view illustrating the structure of this utility model. Figure 2 This utility model Figure 1 Front view; Figure 3 This utility model Figure 1 Top view; Figure 4 This utility model Figure 1 The right view.

[0014] The following are labels in the attached diagram: 1. Tabletop; 2. Connecting plate; 3. Hydraulic cylinder; 4. Probe detection plate one; 5. Guide rod one; 6. Constraint slide; 7. Guide rod two; 8. Probe detection plate two; 9. U-shaped hydraulic pipe; 10. Piston; 11. Fixing frame; 12. Support leg; 13. Hinge; 14. Protective cover; 15. Handle; 16. Locking handle; 17. Moving pin frame; 18. Fixed pin frame; 19. Connector; 20. Movable sleeve; 21. Connecting rod; 22. Inner sleeve head; 23. Outer ring; 24. Threaded head; 25. Limit nut. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0016] Please see Figure 1-4A high-frequency transformer withstand voltage testing device includes a table 1, a connecting plate 2, a hydraulic cylinder 3, a probe detection plate 4, a guide rod 5, a constraint slide 6, a second guide rod 7, a second probe detection plate 8, a U-shaped hydraulic pipe 9, a piston 10, and a fixing frame 11. The top middle of the table 1 is connected to the bottom of the connecting plate 2. The hydraulic cylinder 3 is connected to the connecting plate 2, and its output end is connected to the rear middle of the probe detection plate 4. Two sets of constraint slides 6 are connected to the middle of the left and right sides of the table 1, respectively. The left and right rear sides of the probe detection plate 4 are connected to the front ends of a set of guide rods 5, respectively. The outer wall of each set of guide rods 5 is connected to the inner walls of the two inner sets of constraint slides 6, and the inner walls of the two outer sets of constraint slides 6 are connected to the outer wall of a set of guide rods 7, respectively. The front sides of the two sets of guide rods 7 are connected to the rear ends of the probe detection plate 8, respectively. The left and right rear sides of the top of the table 1 are connected to the bottom of a set of U-shaped hydraulic pipes 9 via the fixing frame 11. The U-shaped hydraulic pipe 9 contains hydraulic oil, and a set of pistons 10 is slidably installed on both sides of the U-shaped hydraulic pipe 9. The two sets of pistons 10 are connected to the rear side of the first guide rod 5 and the second guide rod 7, respectively. When the probe detection plate 1 4 and the second probe detection plate 2 8 are far apart, the high-frequency transformer to be tested is placed between the probe detection plate 1 4 and the second probe detection plate 2 8 on the top of the table 1. Then, the hydraulic cylinder 3 is operated under the fixation of the connecting plate 2, which pushes the probe detection plate 1 4 forward, thereby driving the two sets of guide rods 1 5 to slide forward under the constraint of the constraint slide 6. Under the action of the oil pressure inside the U-shaped hydraulic pipe 9, when the piston 10 connected to the first guide rod 5 moves forward, the other set of pistons 10 can drive the second guide rod 7 to move backward. Through the sliding constraint of the second guide rod 7 by the constraint slide 6, the second guide rod 7 drives the second probe detection plate 2 8 to move backward, so that the second probe detection plate 2 8 and the first probe detection plate 1 4 work together to perform the withstand voltage test of the high-frequency transformer.

[0017] It also includes support legs 12, with the four corners of the bottom of the tabletop 1 connected to the top of a set of support legs 12 respectively; the four sets of support legs 12 can support the tabletop 1, keeping it at the appropriate height for convenient use by personnel.

[0018] It also includes a hinge 13 and a protective cover 14. The rear top of the table 1 is movably connected to the front bottom of the protective cover 14 via the hinge 13. The protective cover 14 can be opened and closed under the constraint of the hinge 13. When the protective cover 14 is open, it is convenient to operate inside. When the protective cover 14 is closed, it can protect the internal structure and improve reliability.

[0019] It also includes a handle 15, with the top rear side of the protective cover 14 connected to the bottom side of the handle 15; by holding the handle 15, the protective cover 14 can be opened and closed, improving convenience.

[0020] It also includes a locking handle 16, a moving pin bracket 17, and a fixed pin bracket 18. The front side of the top of the protective cover 14 is rotatably connected to the bottom side of the locking handle 16. The output end of the locking handle 16 is connected to one side of the inner end of the moving pin bracket 17. The front side of the top of the table 1 is connected to the bottom side of the fixed pin bracket 18. When the protective cover 14 is closed, by turning the locking handle 16, the moving pin bracket 17 can be rotated and inserted into the fixed pin bracket 18 to close and fix the protective cover 14, thereby improving reliability.

[0021] It also includes a connector 19, a movable sleeve 20, a connecting rod 21, an inner sleeve 22, an outer ring 23, a threaded head 24, and limiting nuts 25 and 26. The middle right side of the table 1 is movably connected to the inner side of the movable sleeve 20 via the connector 19. One side of the outer end of the movable sleeve 20 is connected to the connecting rod 21, and the other end of the connecting rod 21 is connected to the inner sleeve 22. The front right side of the protective cover 14 is connected to the outer ring 23, and the middle outer side of the outer ring 23 is connected to the threaded head 24. The outer side of the threaded head 24 is detachably screwed to the inner side of the limiting nut 25. When the protective cover 14 is in the vertically open state, the movable sleeve 20 can be moved outside the connector 19, so that the inner sleeve 22 is fitted outside the outer ring 23, and is limited by the limiting nut 25 screwed on outside the threaded head 24 to prevent the inner sleeve 22 from slipping out. Thus, it is connected to the protective cover 14 via the connecting rod 21 and fixed, improving stability.

[0022] In summary, when using a high-frequency transformer withstand voltage testing device, four sets of support legs 12 can support the table 1, positioning it at a suitable height for easy access. The initial state is when the probe detection plate 1 (4) and probe detection plate 2 (8) are far apart. When the protective cover 14 is in the vertically open state, the movable sleeve 20 can be moved outside the connector 19, allowing the inner sleeve 22 to fit over the outer sleeve 23. The inner sleeve 22 is then limited by a screw-on limiting nut 25 on the outside of the threaded head 24, preventing it from slipping out. The protective cover 14 is then fixed via the connecting rod 21. The high-frequency transformer to be tested is placed between the probe detection plate 1 (4) and probe detection plate 2 (8) at the top of the table 1. Then, with the connecting plate 2 fixed, the hydraulic cylinder 3 operates, performing... The probe detection plate 4 is pushed forward, which in turn drives the two sets of guide rods 5 to slide forward under the constraint of the constraint slide 6. Under the action of oil pressure inside the U-shaped hydraulic pipe 9, when the piston 10 connected to the guide rod 5 moves forward, the other set of pistons 10 can drive the guide rod 7 to move backward. Through the sliding constraint of the constraint slide 6 on the guide rod 7, the guide rod 7 drives the probe detection plate 8 to move backward, so that the probe detection plate 8 and the probe detection plate 4 work together to perform the withstand voltage test of the high frequency transformer. By holding the handle 15, the protective cover 14 can be opened and closed. When the protective cover 14 is closed, it can protect the internal structure. By turning the locking handle 16, the moving pin frame 17 can be rotated and pinned into the fixed pin frame 18 to close and fix the protective cover 14.

[0023] The hydraulic cylinder 3, probe detection plate 1 4, and probe detection plate 2 8 are commercially available devices known to those skilled in the art, and are equipped with corresponding control systems to fulfill their functions. Here, we are simply using them without making any structural or functional improvements, and we will not elaborate further.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which 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 tabletop (1), a connecting plate (2), a hydraulic cylinder (3), a probe detection plate (4), a guide rod (5), a constraint slide (6), a guide rod (7), a probe detection plate (8), a U-shaped hydraulic pipe (9), a piston (10), and a fixing frame (11). The top middle of the tabletop (1) is connected to the bottom of the connecting plate (2). The connecting plate (2) is connected to the hydraulic cylinder (3). The output end of the hydraulic cylinder (3) is connected to the middle of the rear side of the probe detection plate (4). Two sets of constraint slides (6) are connected to the middle of the left and right sides of the tabletop (1). The left and right sides of the rear end of the probe detection plate (4) are connected to the front end of a set of guide rods (5). The outer walls of each set of guide rods (5) are connected to the inner walls of the two sets of inner constraint slides (6), and the inner walls of the two sets of outer constraint slides (6) are connected to the outer walls of a set of guide rods (7). The front sides of the two sets of guide rods (7) are connected to the rear ends of the probe detection plate (8). The left and right sides of the rear of the top of the table (1) are connected to the bottom of a set of U-shaped hydraulic pipes (9) via a fixing frame (11). The U-shaped hydraulic pipes (9) are filled with hydraulic oil, and a set of pistons (10) are slidably installed on both sides inside the U-shaped hydraulic pipes (9). The two sets of pistons (10) are connected to the rear sides of guide rods (5) and guide rods (7) respectively.

2. The high-frequency transformer withstand voltage testing device according to claim 1, characterized in that: It also includes support legs (12), and the four corners of the bottom end of the table (1) are respectively connected to the top side of a set of support legs (12).

3. The high-frequency transformer withstand voltage testing device according to claim 1, characterized in that: It also includes a hinge (13) and a protective cover (14), with the rear top of the tabletop (1) being movably connected to the front bottom of the protective cover (14) via the hinge (13).

4. The high-frequency transformer withstand voltage testing device according to claim 3, characterized in that: It also includes a grip (15), the top rear side of the protective cover (14) being connected to the bottom side of the grip (15).

5. The high-frequency transformer withstand voltage testing device according to claim 3, characterized in that: It also includes a locking handle (16), a moving pin frame (17) and a fixed pin frame (18). The front side of the top of the protective cover (14) is rotatably connected to the bottom side of the locking handle (16). The output end of the locking handle (16) is connected to one side of the inner end of the moving pin frame (17). The front side of the top of the table (1) is connected to the bottom side of the fixed pin frame (18).

6. The high-frequency transformer withstand voltage testing device according to claim 3, characterized in that: It also includes a connector (19), a movable sleeve (20), a connecting rod (21), an inner sleeve (22), an outer ring (23), a threaded head (24), and a limiting nut (25). The middle right side of the table (1) is movably connected to the inner side of the movable sleeve (20) via the connector (19). The outer end of the movable sleeve (20) is connected to the connecting rod (21) on one side, and the other end of the connecting rod (21) is connected to the inner sleeve (22). The front right side of the protective cover (14) is connected to the outer ring (23), and the middle outer side of the outer ring (23) is connected to the threaded head (24). The outer side of the threaded head (24) is detachably screwed to the inner side of the limiting nut (25).

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