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Edge expansion type high coupling coefficient non-contact transformer

A high-coupling, transformer technology, applied in the direction of transformer/inductor core, inductor/transformer/magnet manufacturing, transformer/inductor coil/winding/connection, etc., can solve the problems of low coupling coefficient and heavy core weight, etc. To achieve the effect of increasing the coupling coefficient and increasing the width of the window

Inactive Publication Date: 2010-01-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of low coupling coefficient and heavy core weight in the existing non-contact transformer, and to design an edge-extended high-coupling coefficient non-contact transformer that is beneficial to the miniaturization and lightweight use of the non-contact power supply system. transformer

Method used

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  • Edge expansion type high coupling coefficient non-contact transformer
  • Edge expansion type high coupling coefficient non-contact transformer
  • Edge expansion type high coupling coefficient non-contact transformer

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Embodiment Construction

[0024] The accompanying drawings disclose several specific implementation examples of the present invention without limitation, and the present invention will be further described as follows in conjunction with the accompanying drawings.

[0025] See attached figure 1 , the extended part of the magnetic core adopts a rectangular shape, and only expands in one direction along the X direction of the magnetic core window width.

[0026] See attached figure 2 , the edge extension part of the magnetic core adopts a rectangular shape, and bidirectionally expands along the X direction of the magnetic core window width and the Y direction of the window depth.

[0027] See attached image 3 , the edge extension of the magnetic core adopts a circular shape, and expands bidirectionally along the X direction of the magnetic core window width and the Y direction of the window depth.

[0028] See attached Figure 4 , the edge extension of the magnetic core adopts a hexagonal shape, and b...

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Abstract

The invention provides an edge expansion type high coupling coefficient non-contact transformer, comprising a primary magnetic core, a primary winding, a secondary magnetic core and a secondary winding; the bottoms of two side columns of the primary magnetic core or / and the secondary magnetic core extend outward along the lateral side, the windings are respectively wound on the two magnetic core side columns whose bottoms extend outward, two parts of windings on the two magnetic core side columns are forwardly connected in series to form the primary winding or the secondary winding. By methods of enhancing the width of a window and positive areas of primary and secondary magnetic cores, splitting and linking windings, planar distributed windings arrangement and the like, the proportion of magnetic flux directly closed at the primary side can be effectively reduced, and the coupling coefficient of the transformer is improved; the expansion parts at the edge of the magnetic cores are limited at the bottom, thus remarkably reducing the volume and weight of the transformer while obtaining high coupling coefficient. The invention is extremely favourable for miniaturization, lightweight and efficiency of a non-contact power supply system and is suitable for most non-contact electric energy transmission occasions.

Description

technical field [0001] The invention relates to a high-coupling coefficient and light-weight edge-extended non-contact transformer suitable for a non-contact power transmission system, which belongs to the field of transformer or power conversion. Background technique [0002] Non-contact power supply is a new type of power transmission mode based on magnetic field coupling to realize "wireless power supply". The non-contact transformer with completely separated primary and secondary sides is used to transmit power through the coupling of high-frequency magnetic field, so that the power supply side and the power consumption side are seamless during the energy transfer process. physical connection. Compared with the traditional contact power supply, non-contact power supply is convenient and safe to use, without sparks and electric shock hazards, without dust accumulation and contact loss, without mechanical wear and corresponding maintenance problems, and can adapt to a vari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/24H01F27/30H01F27/28H01F41/02
Inventor 张巍陈乾宏曹玲玲
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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