JP2006340583A - Coil and coil component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a flat-type coil having a structure enabling coils to be mutually laminated. <P>SOLUTION: An electric wire 1 comprising a flat type of a rectangular wire, prepared by winding the electric wire 1, is bent to the opposite side of the axial direction of winding by each semicircle of winding and is arranged on the same side of a direction orthogonal to the axial direction of winding. Thereby, a step part is formed on the parallel face of the wound wire between both semicircle parts. Alternatively, parts of the coils are laminated and are arranged radially, and the winding start part and the winding end part of the electric wire are positioned on the inner peripheral side or on the outer peripheral side to be connected to each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention belongs to a technical field related to coils and coil components that are wound from an electric wire and incorporated in various electronic devices, electromagnetic devices, and the like.

  In recent years, electronic devices, electromagnetic devices, and the like tend to increase the number of turns of electric wires in a coil as the current supplied to the coil increases. An increase in the number of turns of the electric wire in the coil results in an increase in the size of the coil, making it difficult to incorporate the coil into an electronic device, an electromagnetic device, or the like. For this reason, development of the coil which can increase the winding number of an electric wire, without enlarging is earnestly desired.

Conventionally, for example, the following coils are known as coils oriented to increase the number of turns of an electric wire without increasing the size.
Japanese Patent Application Laid-Open No. 2001-45688 discloses a coil in which a part of a bundle around which an electric wire is wound is bent and deformed in the axial direction of the winding.

  The coils according to Patent Document 1 are stacked on each other using bent deformation portions when incorporated in electronic devices, electromagnetic devices, and the like, thereby canceling the increase in size by reducing the installation space.

  The coil according to Patent Document 1 has a problem that it is difficult to provide a bent deformation portion in the case of a flat type.

  The present invention has been made in consideration of such problems, and it is an object of the present invention to provide a flat type coil having a structure that can be stacked on each other and a coil component in which the coils are stacked and assembled. To do.

  In order to solve the above-described problems, the coil according to the present invention employs the means described in claims 1 and 2 of the claims.

  That is, in the flat type coil around which the electric wire is wound, the electric wire is folded back to the opposite side of the winding axial direction every half circumference of the winding and is the same in the direction orthogonal to the axial direction of the winding. It is characterized by being parallel to the side.

  In this means, a step is formed between the half-peripheries on the parallel surface of the wound electric wire.

  According to a second aspect of the present invention, in the coil of the first aspect, the electric wire is a flat wire.

  In this means, a rectangular wire is selected as the material of the electric wire.

  In order to solve the above-described problems, the coil component according to the present invention employs means described in claims 3 and 4 of the claims.

  That is, in claim 3, the coil of claim 1 or 2 is partially laminated and arranged radially, and the winding start end and winding end of the electric wire are located on the inner peripheral side or the outer peripheral side and connected. Features.

  In this means, the radially arranged coils are formed in a disk shape connected on the inner peripheral side or the outer peripheral side.

  According to a fourth aspect of the present invention, in the coil component of the third aspect, the winding start end of the wire of one coil is connected to the winding start end of the coil wire adjacent to one side of the arrangement, and the winding of the wire of the one coil is performed. The turn end is connected to the winding end of the coil wire adjacent to the other side of the arrangement.

  In this means, adjacent coils are reversely wound with each other.

  The coil according to the present invention has an effect of obtaining a flat type having a structure that can be laminated with each other because a step is formed between the two semicircular portions on the parallel surface of the wound electric wire.

  In addition, as the second aspect, since a rectangular wire is selected as the material of the electric wire, there is an effect that the electric wires can be easily processed regularly in parallel.

  The coil component according to the present invention is formed in a disk shape in which radially arranged coils are connected on the inner peripheral side or the outer peripheral side, so that it can be used as a rotor, a stator, etc. of a flat type rotating electromagnetic induction machine. There is an advantageous effect.

  According to the fourth aspect of the present invention, adjacent coils are reversely wound, so that there is an effect that is more suitable for use as a rotor, a stator or the like of a flat type rotating electromagnetic induction machine.

  The best mode for carrying out the coil and the coil component according to the present invention will be described below with reference to the drawings.

  In this embodiment, the wire 1 made of a flat wire is used as a material.

  This configuration forms a coil component B (see FIGS. 8 and 9) in which a hexagonal coil A (see FIG. 1) is formed and three sets of 10 coils A radially connected in series are stacked. is doing.

  The coil A of this form is manufactured by winding the electric wire 1 as shown in FIG. That is, as shown in FIGS. 4 (A) and 4 (B), the electric wire 1 is wound around a half circumference while being bent. Subsequently, as shown in FIG. 4C, the electric wire 1 is folded back to one side (upper side) in the axial direction of winding. Subsequently, as shown in FIG. 4D, the folded and inverted electric wire 1 is further wound half a turn while being bent. Subsequently, as shown in FIG. 4E, the electric wire 1 is folded back to the other side (lower side) in the axial direction of winding. Subsequently, as shown in FIG. 4 (F), one side (electric wire 1) in a direction orthogonal to the axial direction of winding with respect to the electric wire 1 wound earlier while bending and reversing the electric wire 1 is processed. Wind half a turn in parallel with the right side of the drawing. Subsequently, although not shown in the drawing, the electric wire 1 is folded back to one side (upper side) in the axial direction of the winding, and the electric wire 1 wound before the wire 1 is bent and orthogonal to the axial direction of the winding. A half-turn winding is performed in parallel with one side (the right side of the electric wire 1 in the drawing) of the direction to be performed. Such folding and winding are repeated several times. And the winding start end 11 and the winding termination | terminus 12 of the electric wire 1 of the manufactured coil A are both located in one corner | angular part of a hexagon.

  In manufacture of this coil A, since the electric wire 1 which consists of a flat wire is used as a material, it becomes easy to process the electric wire 1 regularly in parallel.

  As shown in FIGS. 2 and 3, the manufactured coil A has a step S formed between the half-circumferential portions on the parallel surface of the wound wire 1. Accordingly, as shown in FIGS. 6 and 7, by using the step S and shifting the winding axis C so that the coils A are stacked on each other, the increase in the size of the coil A can be offset by reducing the installation space. .

  In addition, the manufactured coil A is twice as thick as the ordinary spiral winding of the electric wire 1, but it can be prevented from being enlarged in the radial direction. Therefore, it is suitable when there is a restriction on the mounting space (particularly the mounting plane). In addition, about the point which thickness becomes thick, it can eliminate by the lamination | stacking using the above-mentioned level | step difference S. FIG.

  Moreover, since the coil A manufactured has both the winding start end 11 and the winding end 12 of the electric wire 1 positioned at one corner of a hexagon, wiring connection is easy.

  The coil component B of this form is manufactured by laminating a part of the coil A described above using the step S and arranging it radially. The winding start end 11 and the winding end 12 of the electric wire 1 of the coil A are located on the inner peripheral side of the radial arrangement. And the winding start end 11 of the electric wire 1 of one coil A is connected to the winding start end 11 of the electric wire 1 of the coil A adjacent to one side of arrangement | positioning with the connecting wire 2, as shown in FIG. Further, as shown in FIG. 9, the winding end 12 of the electric wire 1 of one coil A is connected to the winding end 12 of the electric wire 1 of the coil A adjacent to the other side of the arrangement by a connection line 3. Note that three sets of coils A (see FIG. 9) in which 10 coils are connected in series (see FIG. 8) are stacked. Therefore, as shown in FIG. 8, the six winding start ends 11 of the electric wire 1 are drawn out as lead wires 4.

  The manufactured coil component B is formed in a disk shape and adjacent coils A are reversely wound with each other. Therefore, the manufactured coil component B is suitable for use as a rotor or the like of a flat type electromagnetic induction machine.

  The coil A and the coil component B are integrated by self-bonding, resin molding, and adhesive application as necessary.

  As described above, it is possible to select a wire other than the rectangular wire as the electric wire 1 in addition to the illustrated embodiment.

  Furthermore, it can also be incorporated into electronic devices, electromagnetic devices, etc. other than the flat type rotating electromagnetic induction machine.

  Further, depending on the manufacturing apparatus, it is possible to connect the electric wires 1 of the adjacent coils A and to omit the connecting wires 2 and 3.

  Furthermore, the winding start end 11 and the winding end 12 of the coil A in the coil component B can be positioned on the outer peripheral side of the radial arrangement. According to this embodiment, it is suitable for use as a stator or the like of a rat-type rotating electromagnetic induction machine.

Industrial application fields

  The coil and the coil component according to the present invention can be widely used in a cylindrical rotating electromagnetic induction machine, other electronic devices, electromagnetic devices, and the like.

It is a front view of the best form for implementing the coil which concerns on this invention. FIG. 2 is a perspective view of FIG. 1. It is the XX sectional view taken on the line of FIG. The manufacturing example of FIG. 1 is shown, and a manufacturing process is shown in order of (A)-(F). It is a lamination | stacking state figure of FIG. It is a perspective view which shows the positional relationship of the lamination | stacking of FIG. FIG. 7 is a cross-sectional view of FIGS. 5 and 6, showing a state before coil lamination in (A), and a state after coil lamination in (B). [BRIEF DESCRIPTION OF THE DRAWINGS] It is a front view of the best form for implementing the coil components based on this invention. It is a partial extraction figure of FIG.

Explanation of symbols

1 Electric wire 11 Winding start end 12 Winding end 2, 3 Connecting wire A Coil B Coil parts

Claims (4)

  In a flat type coil wound with an electric wire, the electric wire is folded back to the opposite side of the winding axial direction every half turn of the winding and arranged in parallel on the same side in the direction perpendicular to the axial direction of the winding. Coil characterized by   The coil according to claim 1, wherein the electric wire is a flat wire.   A coil component comprising: the coils of claim 1 or 2 stacked partially and arranged radially, wherein the winding start end and winding end of the electric wire are positioned on the inner peripheral side or the outer peripheral side and connected.   4. The coil component according to claim 3, wherein the winding start end of the electric wire of one coil is connected to the winding start end of the electric wire of the coil adjacent to one side of the arrangement, and the winding end of the electric wire of one coil is the other side of the arrangement. A coil component which is connected to a winding end of a wire of a coil adjacent to the coil.

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