The secondary framework of a 100KVA high-voltage pulse transformer

Abstract

The present invention provides a secondary skeleton of a 100KVA high-voltage pulse transformer, which comprises an inter-skeleton section isolation plate (1), upper and lower skeleton limit plates (2), a first skeleton side plate (3), a second skeleton side plate (4) and a fixing frame (5), and is formed by fastening each component with nylon bolts. The secondary skeleton of the high-voltage pulse transformer of the present invention is made of materials that are simple to process and convenient for winding. The inter-skeleton section isolation plate is used for inter-section isolation, meeting the electrical safety and structural strength requirements of the high-voltage transformer skeleton; moreover, the inter-section isolation voltage is high, and no displacement will occur when each section vibrates.

Description

Technical Field

[0001] The present invention belongs to the technical field of power supply transformers, and relates to a secondary skeleton of a 100KVA high-voltage pulse transformer, which is widely used in the secondary skeleton of high-power high-voltage pulse transformers. Background Art

[0002] When manufacturing high-power high-frequency transformers, the magnetic cores of high-frequency transformers generally use toroidal closed magnetic cores.

[0003] For example, Chinese Patent CN201420054383.6 discloses a fully enclosed magnetic can for reactors and transformers, including upper and lower yokes and a central column. The upper and lower yokes are made of silicon steel sheets, and the central column is made of soft magnetic powder core magnetic strips. The silicon steel sheets and the soft magnetic powder core magnetic strips are spliced and butted, and the silicon steel sheets and the soft magnetic powder core column are locked by bolts to form a magnetic conduction loop; an inductance coil is wound outside the central column.

[0004] In the prior art, the high-voltage wire coils of the closed magnetic cores are wound on the secondary skeleton in segments using high-frequency multi-strand exciting wires. There are various manufacturing methods for the secondary skeleton, but currently, most of the inter-segment isolation is achieved by turning the edge of the insulating paper. The inter-segment isolation insulation level is poor, the anti-vibration performance is poor, and the winding process requirements are high. Summary of the Invention

[0005] Based on the needs of reality and production practice, the applicant provides a secondary skeleton of a 100KVA high-voltage pulse transformer, which is suitable for winding the high-voltage wire coils of high-power high-frequency transformers.

[0006] According to the technical solution of the present invention, a secondary skeleton of a 100KVA high-voltage pulse transformer is provided, which includes an inter-segment isolation plate of the skeleton, upper and lower limit plates of the skeleton, a first side plate of the skeleton, a second side plate of the skeleton, and a fixing frame 5, and is formed after being fastened with nylon bolts between each component.

[0007] The inter-segment isolation plate of the skeleton is preferably made of epoxy board material, the upper and lower limit plates of the skeleton are preferably made of epoxy board material, the first side plate of the skeleton is preferably made of PTFE material, the second side plate of the skeleton is preferably made of PTFE material, and the fixing frame is preferably made of epoxy board material.

[0008] Further, the inter-segment isolation plate of the skeleton is of a U-shaped structure, a first through hole is provided on the vertical surface of the U-shaped structure, the included angle between the horizontal rib of the U-shaped structure and the vertical surface is a right angle, and a reinforcing rib is preferably provided at the outer joint angle between the horizontal rib and the vertical surface.

[0009] Compared with the prior art, the material of the present invention is simple to process, the winding process is convenient, and the inter-segment isolation plate of the skeleton is used for inter-segment isolation, meeting the electrical safety and structural strength requirements of the high-voltage transformer skeleton; moreover, the inter-segment isolation voltage is high, and there will be no displacement when each segment vibrates. In addition, the present invention is suitable for winding high-voltage wire packages of high-power high-frequency transformers. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 FIG. is a schematic structural diagram of the inter-segment isolation plate of the secondary skeleton of a 100KVA high-voltage pulse transformer according to the present invention.

[0011] Figure 2 FIG. is a schematic structural diagram of the upper and lower limit plates of the secondary skeleton of a 100KVA high-voltage pulse transformer according to the present invention.

[0012] Figure 3 FIG. is a schematic structural diagram of the first skeleton side plate 1 of the secondary skeleton of a 100KVA high-voltage pulse transformer according to the present invention.

[0013] Figure 4 FIG. is a schematic structural diagram of the second skeleton side plate 2 of the secondary skeleton of a 100KVA high-voltage pulse transformer according to the present invention.

[0014] Figure 5 FIG. is a schematic structural diagram of the fixing frame of the secondary skeleton of a 100KVA high-voltage pulse transformer according to the present invention.

[0015] Figure 6 FIG. is an assembly schematic diagram of the secondary skeleton of a 100KVA high-voltage pulse transformer according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] As Figures 1 - 5 shown, the present invention provides a secondary skeleton of a 100KVA high-voltage pulse transformer, which includes an inter-segment isolation plate 1 of the skeleton, upper and lower limit plates 2 of the skeleton, a first skeleton side plate 3, a second skeleton side plate 4, and a fixing frame 5, and is formed by fastening each component with nylon bolts. The inter-segment isolation plate 1 of the skeleton is preferably made of epoxy board material, the upper and lower limit plates 2 of the skeleton are preferably made of epoxy board material, the first skeleton side plate 3 is preferably made of PTFE material, the second skeleton side plate 4 is preferably made of PTFE material, and the fixing frame 5 is preferably made of epoxy board material.

[0018] As Figure 1As shown, the partition plate 1 between the skeleton segments is of a U-shaped structure. A first through hole 11 is provided on the vertical surface 14 of the U-shaped structure. The angle between the horizontal rib 13 of the U-shaped structure and the vertical surface 14 is a right angle. A reinforcing rib is preferably provided at the outer joint angle between the horizontal rib 13 and the vertical surface 14. As Figure 2 As shown, the upper and lower limit plates 2 of the skeleton are of a U-shaped structure. A second through hole 24 is provided on the plane of the horizontal rib 23 of the upper and lower limit plates 2 of the skeleton, and the second through holes 24 are arranged in pairs. Each pair of through holes is close to the joint angle between the horizontal rib and the vertical surface. The inner side surface of the vertical surface of the upper and lower limit plates 2 of the skeleton is of a boss structure. A corresponding sixth through hole 25 is provided at the upper boss structure 21 of the boss structure. The lower boss structure 22 of the boss structure matches the flat plate 31 of the first skeleton side plate 3.

[0019] As Figure 3 As shown, the first skeleton side plate 3 is of a flat plate-like structure, which includes a flat plate 31 and joint plates 32 on both sides of the flat plate. Third through holes 35 are provided at both end faces of the flat plate, and a first threaded hole 34 is provided on the plane of the joint plate. A boss 33 is provided at the side of the joint plate 32 away from the flat plate 31, and the height of the boss 33 is adapted to the distance between adjacent upper and lower limit plates 2 of the skeleton.

[0020] As Figure 4 As shown, the second skeleton side plate is of a flat plate structure. A second threaded hole 41 is provided at the top end of the flat plate structure, and concave platforms 42 are provided on both sides of the flat plate structure. The length of the concave platforms 42 is adapted to the inner distance of the horizontal ribs of the U-shaped structure of the partition plate 1 between the skeleton segments.

[0021] As Figure 5 As shown, the fixing frame is of a flat plate structure with a hollow middle. Concave platforms 51 are provided on both sides of the long side of the flat plate structure. Threaded holes are provided at the upper and lower end faces of the concave platforms 51. The threaded holes at the upper and lower end faces of the concave platforms 51 match the third through holes 35 of the first skeleton side plate 3. At the middle position of the long side of the flat plate structure, concave grooves 52 are provided on both sides for grasping the secondary skeleton of the high-voltage pulse transformer.

[0022] As Figure 6 As shown, the first skeleton side plate 3 and the second skeleton side plate 4 are buckled at 90 degrees, surrounding the magnetic core, to form a secondary skeleton framework. The upper and lower limit plates 2 of the skeleton are fixedly connected to the two ends of the first skeleton side plate 3 and the second skeleton side plate 4 through nylon bolts. The partition plate 1 between the skeleton segments is uniformly installed on the vertical surface of the first skeleton side plate 3 through nylon bolts to form an isolation between the secondary high-voltage packages. The fixing frame 5 is connected to the end of the first skeleton side plate 3 using stainless steel bolts to fix the two high-voltage packages, constituting the secondary skeleton of the 100KVA high-voltage pulse transformer.

[0023] Using the secondary skeleton of the 100KVA high-voltage pulse transformer of the present invention, a tight combination of the secondary skeleton can be achieved only by fastening and connecting with nylon bolts; through the cooperation between the concave and convex platforms of each component, not only each component is fastened, but also the segment isolation of the skeleton is used for segment isolation, which not only meets the electrical safety and structural strength requirements of the high-voltage transformer skeleton, but also realizes a high inter-segment isolation voltage, and no displacement occurs when each segment vibrates.

[0024] As described above, the above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the embodiments of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A secondary skeleton of a 100KVA high-voltage pulse transformer, characterized in that: It includes a skeleton section isolation plate (1), upper and lower skeleton limit plates (2), a first skeleton side plate (3), a second skeleton side plate (4), and a fixing frame (5). The skeleton section isolation plate (1), upper and lower skeleton limit plates (2), first skeleton side plate (3), second skeleton side plate (4), and fixing frame (5) are fastened with nylon bolts to form a structure. The skeleton section isolation plate (1) is of a U-shaped structure. A first through hole (11) is provided on the vertical surface (14) of the U-shaped structure. The included angle between the horizontal rib (13) of the U-shaped structure and the vertical surface (14) is a right angle. A reinforcing rib is provided at the outer joint angle between the horizontal rib (13) and the vertical surface (14). The upper and lower skeleton limit plates (2) are of a U-shaped structure. Second through holes are provided on the plane of the horizontal rib of the upper and lower skeleton limit plates, and the second through holes are arranged in pairs. Each pair of through holes is close to the joint angle between the horizontal rib and the vertical surface. The inner side surface of the vertical surface of the upper and lower skeleton limit plates is of a boss structure. A corresponding sixth through hole is provided at the upper boss structure of the boss structure. The lower boss structure of the boss structure matches the flat plate of the first skeleton side plate. The first skeleton side plate (3) is of a quasi-flat plate structure. It includes a flat plate and joint plates on both sides of the flat plate. Third through holes are provided at both end faces of the flat plate, and first threaded holes are provided on the plane of the joint plate. A boss is provided at the side of the joint plate away from the flat plate, and the height of the boss is adapted to the distance between adjacent upper and lower skeleton limit plates. The second skeleton side plate (4) is of a flat plate structure. Second threaded holes are provided at the top of the flat plate structure. Concave platforms are provided on both sides of the flat plate structure, and the length of the concave platforms is adapted to the inner distance of the horizontal rib of the U-shaped structure of the skeleton section isolation plate. The fixing frame (5) is of a flat plate structure with a hollow in the middle. Concave platforms are provided on both sides of the long side of the flat plate structure, and threaded holes are provided at the upper and lower end faces of the side concave platforms. The threaded holes at the upper and lower end faces of the side concave platforms match the third through holes of the first skeleton side plate. At the middle position of the long side of the flat plate structure, side notches are provided for grasping the secondary skeleton of the high-voltage pulse transformer.

2. The secondary skeleton of the 100KVA high-voltage pulse transformer according to claim 1, characterized in that: The skeleton section isolation plate (1) is made of epoxy board material.

3. The secondary skeleton of the 100KVA high-voltage pulse transformer according to claim 1, characterized in that: The upper and lower skeleton limit plates (2) are made of epoxy board material.

4. The secondary skeleton of the 100KVA high-voltage pulse transformer according to claim 1, characterized in that: The first skeleton side plate (3) or the second skeleton side plate (4) is made of PTFE material.

5. The secondary skeleton of the 100KVA high-voltage pulse transformer according to claim 1, characterized in that: The fixing frame (5) is made of epoxy board material.

6. The secondary skeleton of the 100KVA high-voltage pulse transformer according to claim 1, characterized in that: The first skeleton side plate and the second skeleton side plate are buckled at 90 degrees to form a secondary skeleton framework around the magnetic core. The upper and lower skeleton limit plates are fixedly connected to the two ends of the first skeleton side plate and the second skeleton side plate through nylon bolts. The skeleton section isolation plate is evenly installed on the vertical surface of the first skeleton side plate through nylon bolts to form inter-segment isolation of the secondary high-voltage package. The fixing frame is fixedly connected to the end of the first skeleton side plate with stainless steel bolts to fix the two high-voltage packages, constituting the secondary skeleton of a 100KVA high-voltage pulse transformer.

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