Transformer

Abstract

The utility model discloses a transformer which comprises a transformer shell, a transformer body, a pipe barrel, a high-voltage bushing and a lead shielding pipe, and the lead shielding pipe is connected between the transformer body and the tail of the high-voltage bushing and used for containing a high-voltage lead led out of the transformer body and guiding the high-voltage lead to the high-voltage bushing. The transformer further comprises a first voltage-sharing ball, the first voltage-sharing ball is arranged in the transformer shell, the lead shielding pipe comprises a first shielding pipe and a second shielding pipe, the first shielding pipe is arranged in the transformer shell, the second shielding pipe is arranged in the pipe barrel, the first end of the first shielding pipe is connected to the transformer body, and the second end of the second shielding pipe is connected to the transformer shell. The second end of the first shielding pipe is connected to the first voltage-sharing ball, the first end of the second shielding pipe is connected to the high-voltage bushing, and the second end of the second shielding pipe is detachably connected to the first voltage-sharing ball. By means of the arrangement mode, production and transportation can be facilitated.

Description

Technical Field

[0001] The utility model relates to a transformer, in particular to a high-voltage transformer. Background Art

[0002] In the existing high-voltage transformers, the lead shielding tube for high-voltage leads usually has a plurality of turning parts to guide the high-voltage leads to the high-voltage bushing. However, such a lead shielding tube is inconvenient to install and has a high transportation difficulty. Moreover, in the existing high-voltage transformers, during transportation, not only the tube barrel needs to be removed from the transformer housing, but also the lead shielding tube needs to be removed from the tube barrel and the transformer housing to realize the transportation of each part of the high-voltage transformer. Such a transportation method is very inconvenient and requires a large number of disassembly and assembly operations. Summary of the Utility Model

[0003] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a transformer, comprising: a transformer housing; a transformer body disposed inside the transformer housing; a tube barrel detachably connected to the transformer housing; a high-voltage bushing disposed inside the tube barrel; and a lead shielding tube connected between the transformer body and the tail of the high-voltage bushing for accommodating the high-voltage lead led out from the transformer body and guiding the high-voltage lead to the high-voltage bushing. The transformer further comprises a first grading ball disposed inside the transformer housing. The lead shielding tube comprises a first shielding tube and a second shielding tube. The first shielding tube is disposed inside the transformer housing, and the second shielding tube is disposed inside the tube barrel. The first end of the first shielding tube is connected to the transformer body, and the second end of the first shielding tube is connected to the first grading ball. The first end of the second shielding tube is connected to the high-voltage bushing, and the second end of the second shielding tube is detachably connected to the first grading ball. Accordingly, through the setting of the first grading ball, the electric field can be made uniform and the safety can be improved; through the segmented design of the lead shielding tube, the production and installation can be facilitated; and the tube barrel and the components inside it can be separated from the transformer and can be transported independently and conveniently as a whole.

[0004] Further, the tube barrel is connected to the transformer housing by means of flange connection. Accordingly, the disassembly and assembly of the tube barrel and the transformer housing can be facilitated.

[0005] Further, the tube barrel has an L-shaped shape and comprises a vertical section and a horizontal section connected to each other. The high-voltage bushing is disposed in the vertical section, and the second shielding tube has a bent shape, and the second end of the second shielding tube is disposed in the horizontal section. Accordingly, the size of the tube barrel can be optimized for easy transportation.

[0006] Furthermore, the second shielding tube has an L-shaped configuration. Accordingly, the shape and dimensions of the second shielding tube can be adapted to those of the tube barrel, thereby saving space.

[0007] Furthermore, the high-voltage bushing and the second shielding tube connected together are held by at least one first bracket fixed inside the tube barrel. Further, the at least one first bracket is fixed to the inner wall of the vertical section and / or the horizontal section. Accordingly, the installation of the high-voltage bushing and the second shielding tube inside the tube barrel can be facilitated.

[0008] Furthermore, the first grading sphere is connected to the second end of the second shielding tube by means of flange connection. Accordingly, the disassembly and assembly of the first grading sphere and the second shielding tube can be facilitated.

[0009] Furthermore, the first grading sphere is held by a second bracket fixed inside the transformer housing. Accordingly, the installation of the first grading sphere inside the transformer housing can be facilitated.

[0010] Furthermore, the transformer further includes a second grading sphere, which is connected between the first end of the second shielding tube and the tail of the high-voltage bushing. Accordingly, the electric field can be further made uniform and the safety can be improved.

[0011] Furthermore, the transformer housing includes a protrusion for mating with the horizontal section of the tube barrel, and the first grading sphere is disposed inside the protrusion. Accordingly, the docking of the tube barrel and the transformer housing can be facilitated. Description of the Drawings

[0012] The drawings are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention, and do not constitute an improper limitation to the present invention. In the drawings:

[0013] Figure 1 is a schematic side cross-sectional view of the transformer of the present invention.

[0014] List of Reference Numerals

[0015] 100 Transformer

[0016] 1 Transformer housing

[0017] 11 Protrusion

[0018] 2 Transformer main body

[0019] 3 Tube barrel

[0020] 31 Vertical section

[0021] 32 Horizontal section

[0022] 4 High voltage bushing

[0023] 41 Tail

[0024] 5 Lead shielding tube

[0025] 51 First shielding tube

[0026] 52 Second shielding tube

[0027] 6 First grading sphere

[0028] 7 Second grading sphere

[0029] S1 First bracket

[0030] S2 Second bracket Detailed implementation manner

[0031] The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0032] In the following detailed description, reference is made to the accompanying drawings that form a part of this specification, in which specific embodiments in which the present invention can be implemented are shown by way of illustration. With respect to the drawings, directional terms such as "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", etc. are used with reference to the directions of the described drawings. Since the components of the embodiments of the present invention can be placed in many different directions, the directional terms are for illustration only and have no limiting meaning. It should be understood that other embodiments can be used and structural or logical changes can be made without departing from the scope of the present invention. Therefore, the following detailed description should not be construed as limiting, and the present invention is defined by the appended claims.

[0033] Figure 1 The transformer 100 of the present invention is schematically shown. The transformer 100 generally can include a transformer housing 1, a transformer main body 2 (specifically, the transformer main body can include, for example, a coil and a coil bracket for holding the coil), a tube 3, a high voltage bushing 4, and a lead shielding tube 5. The transformer main body 2 is disposed inside the transformer housing 1. The tube 3 is detachably connected to the transformer housing 1. The high voltage bushing 4 is disposed inside the tube 3. The lead shielding tube 5 is connected between the transformer main body 2 and the high voltage bushing 4 for accommodating the high voltage lead led out from the transformer main body 2 and guiding the high voltage lead to the high voltage bushing 4.

[0034] The transformer 100 may further include a first grading sphere 6, and the first grading sphere 6 is disposed inside the transformer housing 1. The lead shielding tube 5 may include a first shielding tube 51 and a second shielding tube 52. The first shielding tube 51 is disposed inside the transformer housing 1, and the second shielding tube 52 is disposed inside the tube barrel 3. The first end of the first shielding tube 51 may be connected to the transformer main body 2, and the second end of the first shielding tube 51 may be connected to the first grading sphere 6. The first end of the second shielding tube 52 may be connected to the high-voltage bushing 4, and the second end of the second shielding tube 52 is detachably connected to the first grading sphere 6.

[0035] In addition, the tube barrel 3 may be connected to the transformer housing 1 by means of flange connection. Of course, the present invention is not limited thereto and may be connected by any other detachable means.

[0036] In addition, the tube barrel 3 may have an L-shaped configuration and include a vertical section 31 and a horizontal section 32 connected to each other. The high-voltage bushing 4 is disposed in the vertical section 31. The second shielding tube 52 may have a bent configuration, and the second end of the second shielding tube 52 is disposed in the horizontal section 32. Of course, the specific shape of the tube barrel 3 is not limited thereto and may be, for example, a straight shape.

[0037] In particular, the second shielding tube 52 may have an L-shaped configuration.

[0038] In addition, the connected high-voltage bushing 4 and the second shielding tube 52 may be held by at least one first bracket S1 fixed inside the tube barrel 3. As shown schematically in Figure 1 two first brackets S1 are shown.

[0039] In particular, at least one first bracket S1 may be fixed to the inner wall of the vertical section 31 and / or the horizontal section 32.

[0040] In addition, the first grading sphere 6 may be connected to the second end of the second shielding tube 52 by means of flange (not shown) connection. Of course, the present invention is not limited thereto and may be connected by any other detachable means.

[0041] In addition, the first grading sphere 6 may be held by a second bracket S2 fixed inside the transformer housing 1.

[0042] In addition, the transformer 100 may further include a second grading sphere 7, and the second grading sphere 7 is connected between the first end of the second shielding tube 52 and the tail 41 of the high-voltage bushing 4. In such a case, the first bracket S1 may also be used to hold the second grading sphere 7.

[0043] In addition, the transformer housing 1 may include a protrusion 11 for the horizontal section 32 of the tube 3 to fit, and the first grading ball 6 is disposed inside the protrusion 11. Accordingly, it is convenient to provide a mounting flange at the end of the protrusion 11 for fitting with a corresponding mounting flange provided, for example, on the horizontal section 32.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A transformer, comprising: A transformer housing (1); A transformer main body (2), wherein the transformer main body (2) is arranged inside the transformer housing (1); A tube cylinder (3), which is detachably connected to the transformer housing (1); A high-voltage bushing (4), which is arranged inside the tube cylinder (3); And A lead shielding tube (5), which is connected between the transformer main body (2) and the tail (41) of the high-voltage bushing (4) for accommodating a high-voltage lead led out from the transformer main body (2) and guiding the high-voltage lead to the high-voltage bushing (4), Characterized in that The transformer (100) further comprises a first grading sphere (6), which is arranged inside the transformer housing (1), The lead shielding tube (5) comprises a first shielding tube (51) and a second shielding tube (52), the first shielding tube (51) is arranged inside the transformer housing (1), and the second shielding tube (52) is arranged inside the tube cylinder (3), The first end of the first shielding tube (51) is connected to the transformer main body (2), and the second end of the first shielding tube (51) is connected to the first grading sphere (6), The first end of the second shielding tube (52) is connected to the high-voltage bushing (4), and the second end of the second shielding tube (52) is detachably connected to the first grading sphere (6).

2. The transformer according to claim 1, characterized in that, The tube cylinder (3) is connected to the transformer housing (1) by means of flange connection.

3. The transformer according to claim 1, characterized in that, The tube cylinder (3) has an L-shaped configuration and comprises a vertical section (31) and a horizontal section (32) connected to each other, the high-voltage bushing (4) is arranged in the vertical section (31), and The second shielding tube (52) has a bent configuration, and the second end of the second shielding tube (52) is arranged in the horizontal section (32).

4. The transformer according to claim 3, wherein The second shielding tube (52) has an L-shaped configuration.

5. The transformer according to claim 3, characterized in that, The connected high-voltage bushing (4) and the second shielding tube (52) are held by at least one first bracket (S1) fixed inside the tube cylinder (3).

6. The transformer according to claim 5, characterized in that, The at least one first bracket (S1) is fixed on the inner wall of the vertical section (31) and / or the horizontal section (32).

7. The transformer according to claim 1, characterized in that, The first grading sphere (6) is connected to the second end of the second shielding tube (52) by means of flange connection.

8. The transformer according to claim 1, wherein, The first grading sphere (6) is held by a second bracket (S2) fixed inside the transformer housing (1).

9. The transformer according to claim 1, characterized in that, The transformer (100) further comprises a second grading sphere (7), which is connected between the first end of the second shielding tube (52) and the tail (41) of the high-voltage bushing (4).

10. The transformer according to claim 3, characterized in that, The transformer housing (1) comprises a protrusion (11) for mating with the horizontal section (32) of the tube cylinder (3), and the first grading sphere (6) is arranged inside the protrusion (11).

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