CN208271708U

CN208271708U - A kind of oil-immersed transformer oil channel structure

Info

Publication number: CN208271708U
Application number: CN201820747615.4U
Authority: CN
Inventors: 卢国庆; 李彬; 黄洪东
Original assignee: Kunming Yaolong Confidence Transformer Manufacturing Co Ltd
Current assignee: Kunming Yaolong Confidence Transformer Manufacturing Co Ltd
Priority date: 2018-05-19
Filing date: 2018-05-19
Publication date: 2018-12-21
Anticipated expiration: 2028-05-19

Abstract

The utility model discloses a kind of oil-immersed transformer oil channel structures, including high-tension coil, the high-tension coil side is equipped with corrugated board, and reinforced crimped paper is equipped on the outside of the corrugated board oil duct, the enamel insulated round copper wire for layer insulation is equipped on the outside of reinforced crimped paper；It is big that the utility model solves existing oil-immersed type transformer high-low pressure oil duct shielding surface, transformer weak heat-dissipating, and curtain oil duct is processed relatively complicated complicated than corrugated oil duct, and process increases, the short problem of the distance of transformer wire end creeping discharge.

Description

A kind of oil-immersed transformer oil channel structure

Technical field

The utility model belongs to transformer technology field, and in particular to a kind of oil-immersed transformer oil channel structure.

Background technique

In modern society, transformer is one of the important equipment in industrial and mining enterprises and civil buildings power supply-distribution system, In electrical equipment and radio-circuit, transformer is commonly used for buck/boost, matching impedance, security isolation etc., comes according to methods for cooling Classification, transformer can be divided into dry-type transformer and oil-immersed transformer two major classes.

Oil-immersed transformer is typically mounted at individual transformer indoor or outdoors since fireproof needs, and has cost Low, easy to maintenance, reliable operation, good heat dissipation, capability of overload are strong, adapt to the extensive feature of environment, existing oil-immersed transformer High-low pressure oil duct uses curtain oil duct+2mm paper tube structure, and oil duct shielding surface is big, transformer weak heat-dissipating, and curtain oil duct is than corrugation oil Road processes relatively complicated complexity, and process increases, and the distance of transformer wire end creeping discharge is short.

In the prior art, such as a kind of high creepage distance curtain type of transformer coil of China Patent Publication No. CN201741544U offer Oil duct includes: insulating board, is vertically equipped with several stays, institute at least one side of the insulating board along the vertical direction It states and is equipped with gap between stay, the stay upper and lower ends at least one side of the insulating board are not extend to the insulation The upper and lower end face of cardboard；By adopting the above technical scheme, this utility model provides one kind in the case where guaranteeing creepage distance, both Cost, which can be reduced, again can make the smooth high creepage distance curtain type oil duct for transformer coil of oil stream, but curtain oil duct shielding surface is big, become Depressor weak heat-dissipating, curtain oil duct process relatively complicated complicated, process increase than corrugated oil duct, the creeping discharge of transformer wire end Apart from short.

Utility model content

The purpose of this utility model is to provide a kind of oil-immersed transformer oil channel structures, to solve in above-mentioned background technique The problem of proposition.

To achieve the above object, the utility model provides the following technical solutions:

A kind of oil-immersed transformer oil channel structure, comprising:

High-tension coil, the high-tension coil side are equipped with corrugated board, are equipped on the outside of the corrugated board oil duct reinforced Crimped paper, reinforced crimped paper outside are equipped with the enamel insulated round copper wire for layer insulation.

Preferably, the reinforced crimped paper is higher by coil, and the raised area forms soft corner-ring.

Preferably, paperboard strip, strap and the shrinkage band for protective device are equipped on the outside of the enamel insulated round copper wire.

Compared with prior art, the utility model has the beneficial effects that the utility model uses corrugated board, oil duct is reduced Shielded area improves heat dissipation, is placed in (high-pressure side) crimped paper on the outside of corrugated oil duct using reinforced crimped paper and is higher by coil and is formed Soft corner-ring extends the distance of transformer wire end creeping discharge, to effectively prevent end creeping discharge, divides end oil clearance, mentions The disruptive field intensity of high end oil clearance.

Detailed description of the invention

Fig. 1 is the structure chart of the utility model embodiment；

Fig. 2 is the utility model corrugated board schematic diagram.

In figure: 1 high-tension coil, 2 corrugated boards, 3 reinforced crimped papers, 4 enamel insulated round copper wire.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2:

A kind of oil-immersed transformer oil channel structure, including high-tension coil 1,1 side of high-tension coil are equipped with corrugated board 2,2 oil duct of the corrugated board outside is equipped with reinforced crimped paper 3, is equipped on the outside of reinforced crimped paper 3 for layer insulation Enamel insulated round copper wire 4；

The reinforced crimped paper 3 is higher by coil, and the raised area forms soft corner-ring；It is set on the outside of the enamel insulated round copper wire 4 There are the paperboard strip for protective device, strap and shrinkage band.

As shown in Figure 1, the present apparatus, is wound on 1 outside of high-tension coil for corrugated board 2 first, then by reinforced crimped paper 3 It is wound on the outside of 1 oil duct of corrugated board, then enamel insulated round copper wire 4 is wound on the outside of reinforced crimped paper 2 and carries out layer insulation, finally will Paperboard strip is layered on 4 surface of enamel insulated round copper wire, is covered using strap and shrinkage band.The utility model uses corrugated board, reduces Oil duct shielded area improves heat dissipation, and it is high to be placed in (high-pressure side) crimped paper on the outside of corrugated oil duct using the reinforced crimped paper of 0.75mm Coil 15-20mm forms soft corner-ring out, extends the distance of transformer wire end creeping discharge, to effectively prevent end to put along face Electricity divides end oil clearance, improves the disruptive field intensity of end oil clearance.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of oil-immersed transformer oil channel structure, comprising: high-tension coil (1), which is characterized in that the high-tension coil (1) one Side is equipped with corrugated board (2), is equipped with reinforced crimped paper (3) on the outside of corrugated board (2) oil duct, reinforced crimped paper (3) Outside is equipped with the enamel insulated round copper wire (4) for layer insulation.

2. a kind of oil-immersed transformer oil channel structure according to claim 1, it is characterised in that: the reinforced crimped paper (3) it is higher by coil, and the raised area forms soft corner-ring.

3. a kind of oil-immersed transformer oil channel structure according to claim 1, it is characterised in that: the enamel insulated round copper wire (4) outside is equipped with paperboard strip, strap and shrinkage band for protective device.