CN211016702U

CN211016702U - A clamp plate structure for metallic glass transformer

Info

Publication number: CN211016702U
Application number: CN201922062518.9U
Authority: CN
Inventors: 陈兴土; 杨立军; 俞亿杰; 董立峰; 孙杭青
Original assignee: Hangzhou Qiantang River Electric Group Co Ltd
Current assignee: Hangzhou Qiantang River Electric Group Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-14
Anticipated expiration: 2029-11-26

Abstract

The utility model relates to a clamp plate structure for metallic glass transformer, the transformer technology field of affiliated, including metallic glass transformer body, metallic glass transformer body upper end is equipped with the transformer case lid, this internal a plurality of winding coils that are equipped with of metallic glass transformer, all be equipped with the coil oil duct between two adjacent winding coils, winding coil upper end is equipped with a pair of fixed folder of iron core that is the symmetric distribution with the metallic glass transformer body, be equipped with the folder backup pad between fixed folder of iron core and transformer case lid, be equipped with the clamp plate spare that is linked together with the coil oil duct between fixed folder of iron core and winding coil, be equipped with in the folder backup pad and cup joint fixed tensioning screw with clamp plate spare looks thread formula, folder backup pad upper end is equipped with a plurality of lock nuts that cup joint with tensioning screw looks. The heat dissipation structure has the characteristics of good heat dissipation performance, high structural strength and long service life. The problems of temperature rise and mechanical strength of the transformer are solved. The oil passing effect is improved, the temperature rise speed is reduced, and the safety and stability are improved.

Description

A clamp plate structure for metallic glass transformer

Technical Field

The utility model relates to a transformer technical field, concretely relates to a clamp plate structure for metallic glass transformer.

Background

When the transformer coil is accidentally shorted, a very large short-circuit current flows through the transformer coil, which easily causes the vibration of the transformer coil, so that a transformer pressing plate needs to be designed to press the transformer to bear the impact of the vibration of the transformer coil on the pressing mechanism.

With the emphasis of national power grid and users on the quality requirements of transformers, the temperature rise and mechanical strength of transformers are also concerned, especially amorphous alloy transformers. Because of the particularity of the structure, temperature rise and mechanical strength are always the key difficulties of the amorphous alloy transformer, and how to effectively reduce the temperature rise and submit the mechanical strength of the amorphous alloy transformer to be the most important point.

The conventional transformer platen is a one-piece flat plate that presses against the coil ends. When the transformer operates, the pressure plate is a whole plane plate, so that the flowing direction and the flow quantity of transformer oil can be obstructed, the heat dissipation effect of the transformer is poor, and the energy conservation, consumption reduction and service life of the transformer are influenced.

Disclosure of Invention

The utility model discloses there is the not enough of heat dispersion poor, structural strength hangs down and life weak point among the main prior art of solving, provides a clamp plate structure for metallic glass transformer, and it has the characteristics that heat dispersion is good, structural strength is high and long service life. The problems of temperature rise and mechanical strength of the transformer are solved. The oil passing effect is improved, the temperature rise speed is reduced, and the safety and stability are improved.

The above technical problem of the present invention can be solved by the following technical solutions:

the utility model provides a clamp plate structure for metallic glass transformer, includes metallic glass transformer body, metallic glass transformer body upper end be equipped with the transformer case lid, this internal a plurality of winding coils that are equipped with of metallic glass transformer, all be equipped with the coil oil duct between two adjacent winding coils, winding coil upper end be equipped with a pair of iron core fixation clamp that is the symmetric distribution with the metallic glass transformer body, iron core fixation clamp and transformer case lid between be equipped with the clamp backup pad, iron core fixation clamp and winding coil between be equipped with the clamp piece that is linked together with the coil oil duct, the clamp backup pad on be equipped with and extend to the clamp piece and cup joint fixed tensioning screw with the clamp piece looks screw thread formula, backup pad clamp upper end be equipped with a plurality of lock nuts that cup joint with tensioning screw thread formula mutually. The iron core fixing clamp is used for clamping iron core silicon steel sheets, and meanwhile, small support plates can be welded on the clamp to fix a lead on a wooden piece. The clamping pieces are positioned on two sides of the iron core upper and lower iron yokes.

Preferably, the pressure plate piece comprises a core plate, the outer wall of the core plate is provided with a carbon fiber outer cladding layer which is integrally sintered with the core plate, and the upper end of the carbon fiber outer cladding layer is provided with an insulating rubber mounting plate which is in threaded sleeve joint with the tensioning screw rod.

Preferably, the insulating rubber mounting plate is provided with a threaded hole communicated with the carbon fiber outer cladding layer, and the insulating rubber mounting plate and the carbon fiber outer cladding layer are fixedly bonded in a joggle mode. The structural strength is improved, and the insulating effect is achieved on the connected screw rods.

Preferably, an oil-passing heat dissipation groove communicated with the coil oil duct is arranged between the carbon fiber outer cladding and the winding coil. The smooth and easy of flowing oil is guaranteed, the oil passing area is increased, and the heat dissipation effect is improved.

Preferably, the oil-passing heat dissipation groove is of a trapezoidal structure.

Preferably, the carbon fiber outer cladding is provided with a plurality of heat dissipation through holes penetrating through the core plate.

Preferably, the two side ends of the pressure plate piece are respectively provided with a coil outlet which is integrated with the winding coil.

Preferably, the clip support plate has a cross-section of "L".

The utility model discloses can reach following effect:

the utility model provides a clamp plate structure for metallic glass transformer compares with prior art, has the characteristics that heat dispersion is good, structural strength is high and long service life. The problems of temperature rise and mechanical strength of the transformer are solved. The oil passing effect is improved, the temperature rise speed is reduced, and the safety and stability are improved.

Drawings

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

Fig. 2 is a schematic view of the assembly of the winding coil and the platen member in the present invention.

Fig. 3 is a structural sectional view of the platen member according to the present invention.

Fig. 4 is a schematic side view of the platen member according to the present invention.

In the figure: the amorphous alloy transformer comprises an amorphous alloy transformer body 1, a transformer box cover 2, a clamp supporting plate 3, a tensioning screw rod 4, a locking nut 5, an iron core fixing clamp 6, a winding coil 7, a coil oil duct 8, a coil outlet 9, a pressing plate 10, an insulating rubber mounting plate 11, a carbon fiber outer cladding layer 12, a threaded hole 13, a core plate 14, an oil-passing heat dissipation groove 15 and a heat dissipation through hole 16.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

The embodiment is that as shown in fig. 1-4, a pressure plate structure for an amorphous alloy transformer comprises an amorphous alloy transformer body 1, a transformer case cover 2 is arranged at the upper end of the amorphous alloy transformer body 1, 7 sets of winding coils 7 are arranged in the amorphous alloy transformer body 1, a coil oil duct 8 is arranged between two adjacent winding coils 7, a pair of iron core fixing clamps 6 symmetrically distributed with the amorphous alloy transformer body 1 is arranged at the upper end of each winding coil 7, a clamp support plate 3 is arranged between each iron core fixing clamp 6 and the transformer case cover 2, the cross section of each clamp support plate 3 is shaped like L, a pressure plate 10 communicated with the coil oil duct 8 is arranged between each iron core fixing clamp 6 and the corresponding winding coil 7, each pressure plate 10 comprises a core plate 14, a carbon fiber outer cladding 12 integrally sintered with the core plate 14 is arranged on the outer wall of the core plate 14, an oil-passing heat dissipation groove 15 communicated with the coil oil-passing heat dissipation groove 15 is arranged between the carbon fiber outer cladding 12 and the winding coils 7, the oil-passing heat dissipation groove 15 is of a trapezoidal structure, 2 heat dissipation through holes 16 penetrating through the core plate 14 are arranged on the carbon fiber outer cladding 12, two plates 10 are provided with a carbon fiber outer cladding clamp, a carbon fiber outer cladding 12, a carbon fiber outer cladding fixing clamp, a carbon fiber fixing nut is arranged on the pressure plate, and a carbon fiber fixing support plate, and a carbon fiber fixing screw bolt 11 is arranged on the carbon fiber fixing plate, and a carbon fiber fixing bolt, and.

To sum up, this a clamp plate structure for metallic glass transformer has the characteristics that heat dispersion is good, structural strength is high and long service life. The problems of temperature rise and mechanical strength of the transformer are solved. The oil passing effect is improved, the temperature rise speed is reduced, and the safety and stability are improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without deviating from the basic characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In conclusion, the above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. The utility model provides a clamp plate structure for metallic glass transformer, includes metallic glass transformer body (1), metallic glass transformer body (1) upper end be equipped with transformer case lid (2), metallic glass transformer body (1) in be equipped with a plurality of winding coils (7), its characterized in that: all be equipped with coil oil duct (8) between two adjacent winding coils (7), winding coil (7) upper end be equipped with a pair of iron core fixation clamp (6) that are the symmetric distribution with amorphous alloy transformer body (1), iron core fixation clamp (6) and transformer case lid (2) within a definite time and be equipped with folder backup pad (3), iron core fixation clamp (6) and winding coil (7) within a definite time be equipped with pressure plate spare (10) that are linked together with coil oil duct (8), folder backup pad (3) on be equipped with and extend to pressure plate spare (10) and cup joint fixed tensioning screw (4) with pressure plate spare (10) looks screw thread formula, folder backup pad (3) upper end be equipped with a plurality of lock nuts (5) that cup joint with tensioning screw (4) looks thread formula.

2. The pressing plate structure for the amorphous alloy transformer as claimed in claim 1, wherein: the pressing plate piece (10) comprises a core plate (14), wherein a carbon fiber outer cladding layer (12) which is integrally sintered and coated with the core plate (14) is arranged on the outer wall of the core plate (14), and an insulating rubber mounting plate (11) which is in threaded sleeve connection and fixation with the tensioning screw rod (4) is arranged at the upper end of the carbon fiber outer cladding layer (12).

3. The pressing plate structure for the amorphous alloy transformer as claimed in claim 2, wherein: the carbon fiber composite insulation board is characterized in that a threaded hole (13) communicated with the carbon fiber outer cladding layer (12) is formed in the insulation rubber mounting plate (11), and the insulation rubber mounting plate (11) and the carbon fiber outer cladding layer (12) are fixedly bonded in a joggle mode.

4. The pressing plate structure for the amorphous alloy transformer as claimed in claim 2, wherein: an oil-passing heat dissipation groove (15) communicated with the coil oil duct (8) is arranged between the carbon fiber outer cladding layer (12) and the winding coil (7).

5. The pressing plate structure for the amorphous alloy transformer as claimed in claim 4, wherein: the oil-passing heat dissipation groove (15) is of a trapezoidal structure.

6. The pressing plate structure for the amorphous alloy transformer as claimed in claim 2, wherein: the carbon fiber outer cladding layer (12) is provided with a plurality of heat dissipation through holes (16) penetrating through the core plate (14).

7. The pressing plate structure for the amorphous alloy transformer as claimed in claim 1, wherein: and coil heads (9) integrated with the winding coil (7) are arranged at two side ends of the pressure plate piece (10).

8. The pressing plate structure for the amorphous alloy transformer according to claim 1, wherein the cross section of the clamping piece supporting plate (3) is in the shape of 'L'.