CN202003806U

CN202003806U - Rectangular coil structure with arc

Info

Publication number: CN202003806U
Application number: CN2011201129401U
Authority: CN
Inventors: 刘德山; 王永宏; 郝天; 耿博; 张佳亮; 苑腾达
Original assignee: Baoding Tianwei Group Co Ltd
Current assignee: Baoding Tianwei Group Co Ltd
Priority date: 2010-12-22
Filing date: 2011-04-18
Publication date: 2011-10-05
Anticipated expiration: 2021-04-18

Abstract

The utility model relates to a rectangular coil structure with an arc, in particular to an amorphous alloy iron core epoxy resin dry transformer coil structure, which belongs to the technical field of transformer manufacture. The technical scheme of the rectangular coil structure includes that all four edges of a rectangular coil (1) of an amorphous alloy iron core transformer are circular arc-shaped edges (2), so that the rectangular coil structure with the arc is formed. Force stressed to four angles of the rectangular coil structure with the arc is scattered onto four surfaces, radial stress of the coil is balanced, short-circuit resistant capability is improved, insulation damage is not easy to be caused when a conductor is wound and pass through the four bent angles, and thereby safety of the rectangular coil structure is improved, and the service life of the rectangular coil structure is prolonged.

Description

A kind of band arc matrix loop structure

Technical field:

The utility model relates to a kind of band arc matrix loop structure, and particularly amorphous alloy core epoxy resin dry type transformer loop construction belongs to technical field of transformer manufacturing.

Background technology:

At present, Amorphous Alloy Core Transformer has become the energy saving transformer of wideling popularize in state's electricity rural power grids, but, there are the following problems for common Amorphous Alloy Core Transformer: when meeting sudden short circuit, the coil unbalance stress, easy deformation and burning, the anti-sudden short circuit ability of coil, Product Safety and useful life are low.

The utility model content:

The utility model purpose provides a kind of band arc matrix loop structure, improves the anti-sudden short circuit ability of square coil, improves this type of security of products and useful life, solves the problems referred to above that exist in the background technology.

The technical solution of the utility model is:

A kind of band arc matrix loop structure, four limits of the square coil of Amorphous Alloy Core Transformer are circular-arc limit, constitute band arc matrix loop structure.

Said transformer coil is the rectangular shape of band circular arc, and circular-arc limit is the circular-arc limit that four limits of square coil are outside, four direction is pulled out, and is stressed even as far as possible to guarantee coil.

Realize that by the coiling mould transformer coil is the rectangular shape of band circular arc, on the coil rectangular mould, the width of cloth is pulled out circular arc to four faces.

During transformer short-circuit, the low-voltage coil force analysis: four angles of ordinary rectangular shape coil are stressed very big, shared on four faces the electric power of quite a few, make winding deformation easily, and insulation breakdown causes coil burnout.The power that the utility model coil, four angles are subjected to is disperseed back again on four faces, and the coil width of cloth improve anti-short circuit capability, and conductor is difficult for causing damage in insulation during through four bent angles when coiling to stress equalization.

Good effect of the present utility model: the power that four angles of the utility model band arc matrix loop structure are subjected to is disperseed back again on four faces, the coil width of cloth is to stress equalization, improve anti-short circuit capability, and conductor is when coiling, be difficult for causing damage in insulation during through four bent angles, improve security of products and useful life.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment;

Among the figure: square coil 1, circular-arc limit 2.

Embodiment:

Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.

A kind of band arc matrix loop structure, 1 four limits of the square coil of Amorphous Alloy Core Transformer are circular-arc limit 2, constitute band arc matrix loop structure.Said transformer coil is the rectangular shape of band circular arc, and the original coil of amorphous transformer is a rectangle, and, four direction outside four limits of rectangle pulled out circular arc, and be stressed even as far as possible to guarantee coil.Realize that by the coiling mould transformer coil is the rectangular shape of band circular arc, on the coil rectangular mould, the width of cloth is pulled out circular arc to four faces.

Claims

1. a band arc matrix loop structure is characterized in that (1) four limit of square coil of Amorphous Alloy Core Transformer is circular-arc limit (2), constitutes band arc matrix loop structure.

2. the band arc matrix loop structure according to claim 1 is characterized in that the rectangular shape of said transformer coil for the band circular arc, and circular-arc limit (2) are the circular-arc limits that (1) four limit of square coil is outside, four direction is pulled out.