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Wire for coil

A coil wire, square technology, applied in the direction of coil, coil manufacturing, transformer/inductor coil/winding/connection, etc., can solve the problems of small volume utilization coefficient and deteriorated performance, and achieve thermal radiation effect and thermal resistance improvement. Effect

Inactive Publication Date: 2005-05-18
GOTO DENISH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, in the case where the corners are chamfered, if the diameter of the chamfer is too large, a so-called rolling phenomenon occurs during the winding process, and as a result, the volume utilization factor becomes smaller than that of a circular shape. The volume utilization factor of the line is small, and the performance deteriorates

Method used

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Examples

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Effect test

Embodiment 1

[0042] The present invention will be explained in more detail by way of examples.

[0043] A speaker manufactured using the coil wire of the present invention is compared with a speaker manufactured using a conventional round wire.

[0044] Figure 5 The length of one side D of the square cross-sectional shape of the square wire shown as the basis of the present invention is set to 0.16 mm. Prefab figure 1 The shape shown serves as the basis of the square line, that is, the four corners of the square section are chamfered so that its area becomes 1.15 times the area of ​​the circle 4 with the same diameter D (0.16 mm), or the section The total length of the outer circumference of the shape becomes 1.09 times the circumference of the circle 4. The chamfered wire (conductor portion) of the present invention is covered with an insulating layer, thereby prefabricating the coil wire ("Example 1 of the present invention"). The length of one side of the chamfer included in the cross-se...

Embodiment 2

[0048] Figure 5 The length of one side D of the cross-sectional shape of the square wire shown as the basis of the present invention is set to 0.16 mm. The following coil wires are prefabricated by using the square wire as the base: figure 1 The coil wire shown and used in Example 1 of the present invention (Example 1 of the present invention); there are four corners figure 2 As shown, the cross-sectional area becomes 1.22 times the cross-sectional area of ​​the circle 4, or the total length of the outer circumference of the cross-sectional shape becomes 1.16 times the circumference of the circle 4 (referred to as "this Invention example 2”); at the four corners such as image 3 As shown, the area of ​​the cross-sectional shape becomes 1.26 times the area of ​​the circle 4, or the total length of the outer circumference of the cross-sectional shape becomes 1.21 times the circumference of the circle 4 (referred to as " Example 3 of the present invention); at the four corners su...

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Abstract

In the coil wire having a square cross-sectional shape, arc-shaped chamfers are provided at four corners of the square cross-section. The cross-sectional area of ​​the coil wire with the chamfer is set to be at least 1.15 times the cross-sectional area of ​​a circle having the same diameter as the length of one side of the square.

Description

Technical field [0001] The present invention relates to a wire having a square cross-section for a coil. Background technique [0002] It is known that the cross-section of the wire of most conventional coils is circular (hereinafter, the wire of a coil having a circular cross-sectional shape is referred to as a "circular wire"). A circular wire is made by covering a circular wire as a conductor with an insulating layer. When such a round wire is used to manufacture a coil, a gap will naturally occur between the round wires. Therefore, the coil has the disadvantage of a low packaging factor. It is also known to manufacture a coil wire having a conductor having a square cross-section to solve this disadvantage (hereinafter, the coil wire having a square cross-sectional shape is referred to as a "square wire"). [0003] However, it is also known that in terms of the formation of the insulating layer and the winding method for obtaining the coil shape, forming a square wire requires...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F5/00H01F5/04H01F27/28H01F27/32H01F41/06H01F41/12
CPCH01F5/00H01F5/04H01F27/2823H01F27/323H01F41/122H01F41/077
Inventor 后藤芳英大沼胜由诸冈宪二佐藤浩孝押切正后藤大树
Owner GOTO DENISH CO LTD
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