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Hollow coil winding jig and hollow coil manufacturing method

An air-core coil and wire-wound jig technology, applied in coil manufacturing, transformer/inductor coil/winding/connection, manufacturing of motor generators, etc., can solve problems such as difficult to remove coils

Active Publication Date: 2020-07-24
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the self-melting wire is wound to the winding core, the force that fastens the winding core from the self-melting wire is applied to the winding core, and it is difficult to remove the coil from the winding core.

Method used

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  • Hollow coil winding jig and hollow coil manufacturing method
  • Hollow coil winding jig and hollow coil manufacturing method
  • Hollow coil winding jig and hollow coil manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] Below, based on figure 1 , figure 2 , image 3 , Figure 4 , Embodiment 1 of the present invention will be described.

[0022] Between the winding width suppression plate 1 and the winding width suppression plate 2, a winding core 3 divided into two parts is arranged, and the winding core 3 is wound by the winding width by screws 10, 11, 12, 13, 26, 27. The suppressing plate 1 and the winding width suppressing plate 2 are supported.

[0023] The screw 10 passes through the through hole 31 of the winding width suppression plate 1 in a loose fit state, and is screwed into the threaded hole 41 of the winding core constituting sheet 5, and the screw 11 penetrates the penetration of the winding width suppression plate 1 in a loose fit state. The hole 33 is screwed into the threaded hole 42 of the winding core constituting piece 5, so that the winding width suppression plate 1 and the winding core constituting piece 5 are integrated to form a winding jig constituting pie...

Embodiment approach 2

[0047] In addition, in figure 1 Although winding wires of a square coil are assumed in , and a square-shaped winding core is shown, the shape of the winding core may not be a square shape. Even if it is a winding core shape other than a square, by dividing the winding core into two parts with a slope, and assembling the winding core so that the inclined surfaces are in contact with each other, it is possible to apply the effect of winding to the winding core. The fastening force is converted into a force perpendicular to the winding direction, which makes it easy to move the winding core along the slope.

[0048] According to this configuration, there is an advantage that the configuration for shrinking the winding core can be applied to various winding core shapes.

Embodiment approach 3

[0050] In addition, the winding core of the winding jig can be made of metal materials. For air-core coils, it is necessary to heat the self-melting wire after winding it on the winding core to melt the self-melting layer and bond the coil wires to each other. At this time, the coil and the winding core thermally expand, but if a material having a thermal expansion coefficient smaller than that of the coil wire is used as the material of the winding core, the thermal expansion of the coil is larger than that of the winding core, and a gap appears between the coil and the winding core, There is an effect that the wound coil can be easily removed.

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PUM

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Abstract

The purpose of the present invention is to allow a coil to be removed readily from an air core coil wire winding tool when producing an air core coil. This air core coil wire winding tool has a winding core which is configured by bringing into contact with one another individual winding core configuration pieces 4, 5 resulting from the division of a winding core 3 by two-way splitting. In the air core coil wire winding tool, each of the winding core constituent pieces to be brought into contact with one another has a surface provided with an incline 19 for converting a force squeezing the winding core, which is exerted by a coil wire 18, into forces in the respective directions in which the winding core constituent pieces are to be pulled out.

Description

technical field [0001] The invention relates to an air-core coil winding jig used in the manufacture of the air-core coil and a manufacturing method of the air-core coil. Background technique [0002] In the manufacture of air-core coils, there has been proposed a method of manufacturing an air-core coil in which a self-melting wire is wound around a winding core, the coil is self-melting and solidified, and the coil cured by self-melting is removed from the winding core. As a method of removing the coil from the winding core after winding using this air-core coil manufacturing method, a method of pushing out the coil using a plate having a hole of the same shape as the winding core has been proposed (see Patent Document 1). However, since the fuse wire is wound to the winding core, the force that fastens the winding core from the fuse wire is applied to the winding core, and it is difficult to remove the coil from the winding core. In order to easily disassemble the coil, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/04H02K15/04
CPCH01F41/04H02K15/04H01F27/28H01F41/06
Inventor 松谷麻美大久保诚史冈田真纪
Owner MITSUBISHI ELECTRIC CORP