CN214099357U - Combined three-phase dry transformer - Google Patents

Abstract

The utility model discloses a combined three-phase dry-type transformer, which comprises an upper cover plate, a lower support plate and a transformer main body positioned between the upper cover plate and the lower support plate, wherein the transformer main body comprises an iron core group and a coil, the iron core group comprises a first iron core frame, a second iron core frame, a third iron core frame and a fourth iron core frame which are connected side by side and closely; the first, second, third and fourth iron core frames comprise upper frame strips and lower frame strips which are positioned above and iron core columns which connect the upper frame strips and the lower frame strips, and each two adjacent iron core columns are sleeved with coils; and side plates are respectively arranged on two sides of the transformer main body. The utility model provides a modular three-phase dry-type transformer, the equipment is simple, convenient, efficient, and the performance does not receive any influence.

Description

Combined three-phase dry transformer

Technical Field

The utility model belongs to the technical field of machinery, especially, relate to a modular three-phase dry-type transformer.

Background

Three-phase dry-type transformers are the main components of various power supplies and electrical equipment. The device is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and main components are a primary coil, a secondary coil and an iron core.

The existing three-phase dry-type transformer is a whole formed by three coils and an iron core, cannot be disassembled and assembled, and is heavy in weight and large in size, so that the difficulty is high during transportation and installation operation.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a combined three-phase dry-type transformer which is simple and convenient to assemble, has high efficiency and is not influenced in performance.

In order to solve the technical problem, the utility model discloses a technical scheme be: a combined three-phase dry-type transformer comprises an upper cover plate, a lower support plate and a transformer main body positioned between the upper cover plate and the lower support plate, wherein the transformer main body comprises an iron core group and a coil, the iron core group comprises a first iron core frame, a second iron core frame, a third iron core frame and a fourth iron core frame which are connected side by side and closely, the first iron core frame and the fourth iron core frame are arranged on two sides, and the second iron core frame and the third iron core frame are arranged between the first iron core frame and the fourth iron core frame;

the first iron core frame, the second iron core frame, the third iron core frame and the fourth iron core frame all comprise upper frame strips and lower frame strips which are positioned above the first iron core frame, and iron core columns which are connected with the upper frame strips and the lower frame strips;

and side plates are respectively arranged on two sides of the transformer main body, the upper ends of the side plates are fixedly connected with the upper cover plate, and the lower ends of the side plates are fixedly connected with the lower supporting plate.

Furthermore, the specific structure of the detachable connection of the upper frame strip and the iron core column is splicing.

Further, the fixed connection is a threaded screw connection.

Furthermore, the upper cover plate comprises a main cover plate, two side edges of the main cover plate are bent to form two upper clamping plates, and the two upper clamping plates are located on the same side of the main cover plate.

Further, two punch holder extend to the outside and form supplementary limit, it is equipped with triangular last backup pad to go up supplementary limit, a side of going up the backup pad welds in last supplementary limit, and another side welds in the punch holder.

Furthermore, the two ends of the upper cover plate are welded with upper sealing plates, and the upper sealing plates are fixedly connected with the upper ends of the side plates.

Furthermore, the lower supporting plate is provided with a main supporting plate, two side edges of the main supporting plate are bent to form two lower clamping plates, and the two lower clamping plates are located on the same side of the main supporting plate.

Further, two lower splint extend to the outside and form lower supplementary limit, lower supplementary limit is equipped with triangular lower support plate, one side of lower support plate welds in lower supplementary limit, and opposite side welds in lower splint.

Furthermore, lower seal plates are welded at two ends of the main supporting plate and are fixedly connected with the lower ends of the side plates.

Further, the coil is an elliptical coil.

The utility model has the advantages that:

1. the iron core group in the utility model comprises four independent iron core frames, and each iron core frame can be independently and respectively transported and assembled on site; the weight of each single iron core frame is obviously reduced, the transportation and the field assembly are convenient, and the advantages are very obvious for the occasions with limited transportation and hoisting; the on-site assembly is simple and convenient, the time is fast, the efficiency is high, and the performance is not influenced.

2. The utility model adopts the bending steel plate to replace the traditional channel steel, and has high precision, beautiful appearance and high strength by laser processing; and the upper cover plate is a high-pressure and low-pressure integrated piece, and a pulling plate is omitted and is changed into two side plates. The upper cover plate, the lower base plate and the two side plates form a clamping structure of the transformer main body together; the transportation weight of a single component is not large, and the field assembly is convenient and quick.

3. The utility model discloses well coil is oval, and the wire winding influence is little, and the fill factor of transformer is high, effectively utilizes the space, has effectively reduced the overall dimension of transformer body.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure in the direction A1 in FIG. 1;

FIG. 3 is a schematic view of the structure in the direction A2 in FIG. 1;

fig. 4 is a schematic structural view of the iron core set of the present invention;

FIG. 5 is a cross-sectional view taken along the lines A-A and B-B of FIG. 4;

FIG. 6 is a schematic view of the structure in the direction A in FIG. 4;

fig. 7 is a schematic structural view of the upper cover plate of the present invention;

FIG. 8 is a schematic view of the structure in the direction B1 in FIG. 7;

FIG. 9 is a schematic view of the structure in the direction B2 in FIG. 8;

fig. 10 is a schematic structural view of the bottom plate of the present invention;

FIG. 11 is a schematic view of the structure in the direction of C1 in FIG. 10;

FIG. 12 is a schematic view of the structure in the direction of C2 in FIG. 10;

fig. 13 is a schematic structural view of a side plate of the present invention;

FIG. 14 is a schematic view of the structure of FIG. 13 in the direction D1;

the parts in the drawings are marked as follows:

upper cover plate 1, main apron 11, upper plate 12, upper auxiliary limit 13, upper supporting plate 14, hanger plate 15, low-voltage insulator fixed pin 16, high-voltage insulator fixed plate 17, upper seal plate 18, bottom plate 2, main layer board 21, bottom plate 22, lower auxiliary limit 23, lower supporting plate 24, lower seal plate 25, footing fixed plate 26, cushion 27, transformer body 3, first iron core frame 31, second iron core frame 32, third iron core frame 33, fourth iron core frame 34, upper frame strip 35, bottom frame strip 36, iron core column 37, coil 38, curb plate 4, data plate mounting panel 41 and side seal plate 42.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Example (b): a combined three-phase dry-type transformer, as shown in fig. 1-14, comprising an upper cover plate 1, a lower supporting plate 2 and a transformer main body 3 located between the upper cover plate and the lower supporting plate, wherein the transformer main body comprises an iron core set and a coil 38, the iron core set comprises a first iron core frame 31, a second iron core frame 32, a third iron core frame 33 and a fourth iron core frame 34 which are closely connected side by side, the first iron core frame and the fourth iron core frame are arranged at two sides, and the second iron core frame and the third iron core frame are arranged between the first iron core frame and the fourth iron core frame;

the first iron core frame, the second iron core frame, the third iron core frame and the fourth iron core frame all comprise upper frame strips 35 and lower frame strips 36 which are positioned above the first iron core frame, and iron core columns 37 which connect the upper frame strips and the lower frame strips, the iron core columns are fixedly connected with the lower frame strips, the upper frame strips are detachably connected with the iron core columns, and each two adjacent iron core columns are sleeved with coils 38;

and side plates 4 are respectively arranged on two sides of the transformer main body, the upper ends of the side plates are fixedly connected with the upper cover plate, and the lower ends of the side plates are fixedly connected with the lower supporting plate.

The specific structure that the upper frame strip and the iron core column can be detachably connected is splicing.

The fixed connection is a threaded screw connection.

The upper cover plate 1 comprises a main cover plate 11, two side edges of the main cover plate are bent to form two upper clamping plates 12, and the two upper clamping plates are located on the same side of the main cover plate.

Two punch holder extend to the outside and form supplementary limit 13 in, it is equipped with triangular last backup pad 14 to go up supplementary limit, one side of going up the backup pad welds in last supplementary limit, and another side welds in the punch holder.

The upper clamping plate is also welded with a hanging plate 15.

One of the two upper clamping plates is welded with a low-voltage insulator fixing pin 16, and the other is welded with a high-voltage insulator fixing plate 17.

And upper sealing plates 18 are welded at two ends of the upper cover plate and are fixedly connected with the upper ends of the side plates (in threaded screw connection).

The lower supporting plate 2 is provided with a main supporting plate 21, two side edges of the main supporting plate are bent to form two lower clamping plates 22, and the two lower clamping plates are located on the same side of the main supporting plate.

Two lower splint extend to the outside and form lower supplementary limit 23, lower supplementary limit is equipped with triangular lower support plate 24, one side of lower support plate welds in lower supplementary limit, and opposite side welds in lower splint.

Lower seal plates 25 are welded at two ends of the main support plate and are fixedly connected with the lower ends of the side plates (in threaded screw connection).

The upper cover plate and the lower supporting plate are both steel plates.

The width of the main cover plate and the main supporting plate is the same as the thickness of the iron core frame (the clamping is firm).

The coil is an elliptical coil.

The bottom plate is also welded with a bottom fixing plate 26.

And a cushion block 27 in contact with the transformer main body is welded below the lower auxiliary edge.

The side plates are provided with nameplate mounting plates 41.

And two ends of the side plate are provided with side closing plates 42.

The welding is laser welding.

When the coil is sleeved on two adjacent iron core columns, the two adjacent iron core columns are tightly wound and bound by the insulating tape.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.

Claims (10)

1. A combined three-phase dry-type transformer is characterized in that: the transformer comprises an upper cover plate (1), a lower supporting plate (2) and a transformer main body (3) positioned between the upper cover plate and the lower supporting plate, wherein the transformer main body comprises an iron core group and a coil (38), the iron core group comprises a first iron core frame (31), a second iron core frame (32), a third iron core frame (33) and a fourth iron core frame (34) which are side by side and closely connected, the first iron core frame and the fourth iron core frame are arranged on two sides, and the second iron core frame and the third iron core frame are arranged between the first iron core frame and the fourth iron core frame;

the first iron core frame, the second iron core frame, the third iron core frame and the fourth iron core frame all comprise upper frame strips (35) and lower frame strips (36) which are positioned above the first iron core frame, and iron core columns (37) which connect the upper frame strips and the lower frame strips, the iron core columns are fixedly connected with the lower frame strips, the upper frame strips are detachably connected with the iron core columns, and every two adjacent iron core columns are sleeved with coils (38);

and side plates (4) are respectively arranged on two sides of the transformer main body, the upper ends of the side plates are fixedly connected with the upper cover plate, and the lower ends of the side plates are fixedly connected with the lower supporting plate.

2. The modular three-phase dry transformer of claim 1, wherein: the specific structure that the upper frame strip and the iron core column can be detachably connected is splicing.

3. The modular three-phase dry transformer of claim 1, wherein: the fixed connection is a threaded screw connection.

4. The modular three-phase dry transformer of claim 1, wherein: the upper cover plate (1) comprises a main cover plate (11), two side edges of the main cover plate are bent to form two upper clamping plates (12), and the two upper clamping plates are located on the same side of the main cover plate.

5. The modular three-phase dry transformer of claim 4, wherein: two punch holder extend to the outside and form supplementary limit (13), it is equipped with triangular last backup pad (14) to go up supplementary limit, a side of going up the backup pad welds in last supplementary limit, and another side welds in the punch holder.

6. The modular three-phase dry transformer of claim 4, wherein: and upper sealing plates (18) are welded at two ends of the upper cover plate and are fixedly connected with the upper ends of the side plates.

7. The modular three-phase dry transformer of claim 1, wherein: the lower supporting plate (2) is provided with a main supporting plate (21), two side edges of the main supporting plate are bent to form two lower clamping plates (22), and the two lower clamping plates are located on the same side of the main supporting plate.

8. The modular three-phase dry transformer of claim 7, wherein: two lower splint extend to the outside and form lower supplementary limit (23), lower supplementary limit is equipped with triangular lower support plate (24), one side of lower support plate welds in lower supplementary limit, and opposite side welds in the lower splint.

9. The modular three-phase dry transformer of claim 7, wherein: lower seal plates (25) are welded at two ends of the main supporting plate and are fixedly connected with the lower ends of the side plates.

10. The modular three-phase dry transformer of claim 1, wherein: the coil is an elliptical coil.

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