Method for replacing double/quadruple helix coil of transformer with long-circle section

A transformer coil, oblong type technology, applied in the direction of transformer/inductor coil/winding/connection, inductance/transformer/magnet manufacturing, coil manufacturing, etc., can solve the problem of the geometric size of the oblong cross-section coil being out of tolerance, and achieve the manufacturing cost. Reduced, effect of good electrical performance

Active Publication Date: 2011-05-04
NINGBO TIANAN GRP CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a transposition method for double / quadruple helix oblong cross-section transformer coils, thereby effectively solving the problem of transposition of oblong cross-section coils and the problem that the geometric dimension of the short-axis direction of the coil is out of tolerance. Achieve electrical performance requirements while reducing manufacturing costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for replacing double/quadruple helix coil of transformer with long-circle section
  • Method for replacing double/quadruple helix coil of transformer with long-circle section
  • Method for replacing double/quadruple helix coil of transformer with long-circle section

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] See attached Figure 1-15 , a double-helix transformer coil with oblong cross-section. There are 12 wires wound in parallel, arranged in 2 groups in the axial direction and 6 wires in the width direction. The labels of the twelve wires are respectively 1.2.3.4.5.6. 7.8.9.10.11.12, the cross-section of the coil wound along the oblong core is oblong, and the ratio of the length of the straight line part of the oblong cross-section of the coil to the length of the radius of the semicircular part is 1. The transposition steps are as follows:

[0033] (1) if figure 1 As shown, the 12 wires wound in parallel are axially divided into two groups of wire cakes, A and B, and each group of wire cakes is overlapped by 6 wires and wound along an iron core with an oblong cross section;

[0034] (2) The two semicircle parts of the cross section of the coil can be combined into a complete circle, and the circle formed by the two semicircle parts can be divided into 8 levels according...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for replacing a double / quadruple helix coil of a transformer with a long-circle section, comprising a double helix and a quadruple helix. The replacing method of the double helix comprises the following steps: (1) a plurality of leads wound in parallel are axially divided into two groups of line cakes, and the leads of each group of the line cake are overlapped together to wind along an iron core with the long-circle section; (2) the leads of two groups of line cakes replace once when winding at least one circle, and the replacement is evenly carried out on two semi-circular parts at the section of the coil at interval; and (3) the arrangement position of the leads of each group of the line cake is same as the original arrangement position after the times of the replacement same as the total number of the parallel wound leads are carried out so as to axially lead out two groups of the line cakes. The replacing method of the quadruple helix comprises a step of replacing according to the replacing method of the double helix. A crosswise size in a direction of a short axle of the coil can be completely controlled without bouncing so as to completely replace, the lengths of the parallel-connected leads are same in the same magnetic field, no circulating current is generated among the leads, and the coil has no additional loss due to the replacement, thereby the invention ensures favorable electric performance of the transformer.

Description

technical field [0001] The invention relates to the technical field of power transformation or power distribution devices, in particular to a transposition method for double-helix or quadruple-helix oblong cross-section transformer coils. Background technique [0002] In the technical field of power transformation or power distribution equipment, according to the size of the transformer capacity, its internal coil structure is also different. In medium and small-capacity transformers, the coil structure usually adopts layered coils. Generally, it is divided into single winding and multiple windings. Single winding coils are suitable for small current products, and multiple windings are suitable for large current products. Current products, but because the number of parallel windings in the width direction cannot exceed 2, some high-current products lead to too many wires wound in parallel in the axial direction, so many products have been improved. Chinese invention patent ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/28H01F27/29H01F41/06H01F41/069
Inventor 白亚军朱永利何俊伟梁哲明仇宏海
Owner NINGBO TIANAN GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products