CN203277067U

CN203277067U - Improved transformer core

Info

Publication number: CN203277067U
Application number: CN 201320347553
Authority: CN
Inventors: 徐纪华; 冯其同; 高忠; 邢西田; 刘园杰
Original assignee: SHANDONG YIMENG ELECTRIC POWER EQUIPMENT Co Ltd
Current assignee: SHANDONG YIMENG ELECTRIC POWER EQUIPMENT Co Ltd
Priority date: 2013-06-07
Filing date: 2013-06-07
Publication date: 2013-11-06
Anticipated expiration: 2023-06-07

Abstract

The utility model discloses an improved transformer core comprising a central core column 1, a side core column 2 and a core yoke iron 3, wherein each core column comprises a central grade, a first grade, a second grade, a third grade, a fourth grade, a fifth grade, a sixth grade and the like until the nth grade according to different transformer capacities; a transformer coil is sleeved on the central core column 1 and the side core column 2; one end of the core yoke iron 3 is used for supporting the coil through an insulating paper board; and sections of the central grade, the first grade, the second grade and the third grade of the core yoke iron 3 are connected with the coil. The sections of the central grade, the first grade, the second grade and the third grade of the improved core yoke iron 3 are used for supporting the coil, only the central grade of the core yoke iron 3 is used for supporting the coil in the prior art, the effective contact areas of the first grade, the second grade and the third grade are additionally provided as comparison with the prior art, the area of the yoke iron is increased, and the magnetic flux density of the yoke iron is correspondingly reduced, so that the no-load loss at the yoke iron part is reduced.

Description

A kind of improved transformer core

Technical field

The utility model relates to the transformer technology field, relates in particular to a kind of improved transformer core.

Background technology

the important performance that the anti-sudden short circuit ability of transformer is the power transformer product quality, this performance need is perfect in the power transformer product configuration aspects, the effective supporting surface of increase to coil, original product structure (see architecture advances in transformer core figure before core section figure) only has core center level upper surface to come support coils by core insulation, in order to improve the anti-sudden short circuit ability of transformer, the effective supporting surface of increase to coil, transformer iron-core structure is improved, improved core structure (seeing the core section figure after architecture advances in transformer core figure), increased the effective supporting surface of iron core to coil after improvement, improved the anti-sudden short circuit ability of power transformer product, reduced the no-load loss of transformer, improved the performance of transformer, guaranteed the safe operation of transformer.

Summary of the invention

It is large to effective supporting surface of coil that the purpose of this utility model is to provide a kind of iron core, reduces the improved transformer core of the no-load loss of transformer.

The purpose of this utility model is achieved through the following technical solutions, this transformer core is to be formed through shearing stack by silicon steel sheet, comprise iron core middle column 1, iron core side column 2, iron core yoke 3, each iron core column comprises centre grade, 1,2,3,4,5, the n levels such as 6 because transformer capacity varies in size, transformer coil is to be sleeved on iron core middle column 1 and iron core side column 2, an end face of iron core yoke 3 is supporting coil through the insulation cardboard, and cross section and the coil of the centre grade of described iron core yoke 3 and 1,2,3 grade join.

The centre grade of the iron core yoke 3 after improvement and the area of section support coils of 1,2,3 grade, in prior art only the centre grade of cored yoke 3 supporting coil, increased effective contact area of 1,2,3 grade than prior art, the area of yoke has increased, the magnetic flux density of yoke is corresponding have been reduced, so the no-load loss of yoke part has reduced.

The beneficial effects of the utility model: the improvement of transformer iron-core structure has improved the anti-sudden short circuit ability of transformer, has reduced the no-load loss of transformer, has optimized the performance parameter of transformer, has guaranteed stability and the reliability of transformer quality.

Description of drawings

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing

Fig. 1 is schematic diagram of the present utility model

Fig. 2 is the core section figure of prior art

Fig. 3 is core section figure of the present utility model

In figure: 1, iron core middle column 2, iron core side column 3, iron core yoke

Embodiment

Embodiment one: as shown in Figure 1, 2, 3, this transformer core is to be formed through shearing stack by silicon steel sheet, comprise iron core middle column 1, iron core side column 2, iron core yoke 3, each iron core column comprises centre grade, 1,2,3,4,5, the n levels such as 6 because transformer capacity varies in size, transformer coil is to be sleeved on iron core middle column 1 and iron core side column 2, an end face of iron core yoke 3 is supporting coil through the insulation cardboard, and cross section and the coil of the centre grade of described iron core yoke 3 and 1,2,3 grade join.

Claims

1. improved transformer core, comprise iron core middle column (1), iron core side column (2), iron core yoke (3), transformer coil nested is on iron core middle column (1) and iron core side column (2), an end face of iron core yoke (3) is supporting coil through the insulation cardboard, it is characterized in that the centre grade of described iron core yoke (3) and cross section and the coil of 1,2,3 grade join.