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Coiling method for mutual inductor and products produced thereby

A winding method and transformer technology, applied in the direction of inductance/transformer/magnet manufacturing, transformer/inductor coil/winding/connection, coil manufacturing, etc., can solve the problem that the accuracy of the closed winding method transformer cannot meet the requirements, etc. To achieve the effect of improving the accuracy

Inactive Publication Date: 2008-11-05
中国航天科技集团公司第五研究院第五一四研究所
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In some cases where higher precision is required, the precision of the transformer wound by the closed row winding method cannot meet the requirements

Method used

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  • Coiling method for mutual inductor and products produced thereby
  • Coiling method for mutual inductor and products produced thereby
  • Coiling method for mutual inductor and products produced thereby

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Embodiment Construction

[0024] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] image 3 Shown is a transformer manufactured by the method of the present invention, and the magnetic core 30 is a ring-shaped magnetic core. Figure 4 for image 3 A partial view of , for illustration purposes, Figure 4 The middle is the flat state of the magnetic core 30, which is about to image 3 The side view of the toroidal core 30 in is cut from a certain part and straightened.

[0026] Such as image 3 As shown, select several (at least two) winding wires of equal length (for example, enameled wires can be selected), each winding wire is helically wound on the annular magnetic core 30, and each winding wire The helixes formed after winding (hereinafter referred to as segments) are evenly distributed in the entire annular magnetic core with equal pitches. The two ends of each winding wire form the head end and the tail e...

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Abstract

In order to obtain a mutual inductor with higher accuracy, the invention provides a winding method of the mutual inductor and a mutual inductor prepared thereof, wherein the method includes: selecting at least two winding lines, each of which is wound on the magnetic core by line, and the two ends of each wound line is contacted after winding to form a close coil wound on the magnetic core, winding each winding line in turn along the determination of direction of the wound magnetic core; the two ends of the single circle formed after the winding of the i-th line is respectively the circle formed by winding the <i-1>-th line and the <i+1> line arranged tightly. According to the requirement, the head end and the tail end of the winding line of the close coil after winding are respectively electrically connected with those of the winding line of the close coil, wherein the head end and the tail end are divided according to the flux direction, and the flux direction is discriminated based on the right hand rule. The precision of the mutual inductor in the invention is markedly increased.

Description

technical field [0001] The invention relates to a winding method of a transformer coil. Background technique [0002] In order to reduce magnetic flux leakage, the winding of variable ratio transformers usually adopts the method of winding after random twisting of multi-strand enameled wires (referred to as twisting method). This method is suitable for enameled wires with relatively thin wire diameters, so it can only be applied to transformers with small currents. For transformers that pass through large currents, it is difficult to adopt the method of multi-strand winding due to the requirement that the wire diameter of the enameled wire is relatively thick, so the method of segmented winding is usually used. This method firstly determines the length of enameled wire required for winding each section according to the size of the magnetic core and the number of winding turns, and determines the number of sections according to the ratio of the transformer; secondly, cut off...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/28H01F41/06H01F41/069H01F41/08
Inventor 袁亚飞李亚琭刘民
Owner 中国航天科技集团公司第五研究院第五一四研究所
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