JP2017195045A - Insulation wire, manufacturing method therefor, and coil - Google Patents

Insulation wire, manufacturing method therefor, and coil Download PDF

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JP2017195045A
JP2017195045A JP2016083466A JP2016083466A JP2017195045A JP 2017195045 A JP2017195045 A JP 2017195045A JP 2016083466 A JP2016083466 A JP 2016083466A JP 2016083466 A JP2016083466 A JP 2016083466A JP 2017195045 A JP2017195045 A JP 2017195045A
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insulated wire
wire
wires
braided
shape
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JP6808961B2 (en
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秀仁 花輪
Hidehito Hanawa
秀仁 花輪
賢一 村上
Kenichi Murakami
賢一 村上
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Proterial Ltd
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Hitachi Metals Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide an insulation wire capable of suppressing loosening between single wires during coiling without fusing single wires and excellent in space factor and finishing dimensional accuracy, a manufacturing method therefor and a coil consisting of the insulation wire.SOLUTION: An insulation wire 10 consists of a plurality of enamel wires 1 with a knitted shape or a plurality of litz wires with a knitted shape and a cross section has a straight angle shape.SELECTED DRAWING: Figure 1

Description

本発明は、絶縁電線及びその製造方法並びにコイルに関する。   The present invention relates to an insulated wire, a manufacturing method thereof, and a coil.

近年、省エネ化により、高効率なモータ、トランス、発電器、充電器等の開発が盛んに行われており、一つの手段として高周波化が進んでいる。   In recent years, due to energy savings, high-efficiency motors, transformers, power generators, chargers, and the like have been actively developed, and higher frequency is being promoted as one means.

しかしながら、コイルを構成する巻線では、高周波化すると、表皮効果や近接効果によって、導体の抵抗が大きくなり、損失が出るという課題がある。   However, in the winding constituting the coil, when the frequency is increased, there is a problem that the resistance of the conductor is increased due to the skin effect or the proximity effect, resulting in a loss.

その対策として、細サイズのエナメル線を束ねたリッツ線が使用されることが多い(例えば、特許文献１〜２参照)。   As a countermeasure, a litz wire bundled with thin enamel wires is often used (for example, see Patent Documents 1 and 2).

リッツ線には、リッツ線を構成する素線が巻線時にバラケる問題がある。特許文献１には、素線のバラケを防止するために、素線の１本以上を自己融着エナメル線とすることが開示されている。特許文献２にも同様の開示があり、融着皮膜をエナメル線に塗布して巻線前に予め融着させることで素線のバラケを防止できることが記載されている。   The Litz wire has a problem that the strands constituting the Litz wire are scattered at the time of winding. Patent Document 1 discloses that at least one of the strands is a self-bonding enamel wire in order to prevent the strands from being separated. Patent Document 2 has a similar disclosure, which describes that a stranding of a strand can be prevented by applying a fusion coating to an enameled wire and pre-bonding it before winding.

また、リッツ線には、巻線する際の占積率の問題があり、特許文献１には、占積率を向上させるために、素線を横２列に配列して横断面が長方形状の平型撚線となるように構成することが開示されている。一方、特許文献２には、リッツ線を複数本偏平状に編んで構成したことで、巻線間の隙間が大幅に低減され占積率が高まることが記載されている。   In addition, the Litz wire has a problem of the space factor when winding, and in Patent Document 1, in order to improve the space factor, the strands are arranged in two horizontal rows and the cross section is rectangular. It is disclosed that it comprises so that it may become a flat type | mold twisted wire. On the other hand, Patent Document 2 describes that a plurality of litz wires are knitted into a flat shape, whereby the gap between the windings is greatly reduced and the space factor is increased.

特開平２−２４２５３１号公報Japanese Patent Laid-Open No. 2-242531 特開２００２−３５８８４０号公報JP 2002-358840 A

しかしながら、素線間のバラケを防止するべく融着すると、巻線が硬くなり、加工性や巻線性に問題があり、適用範囲が限られてしまう。   However, if fusion is performed to prevent the breakage between the strands, the winding becomes hard, there is a problem in workability and winding properties, and the application range is limited.

また、特許文献２のようにリッツ線を複数本偏平状に編んで構成しただけでは、占積率の向上は十分とは言えず、かつ仕上寸法精度も良好とは言えない。   Further, just by knitting a plurality of litz wires in a flat shape as in Patent Document 2, it cannot be said that the improvement of the space factor is sufficient and the finished dimensional accuracy is not good.

そこで、本発明の目的は、素線間を融着しなくても巻線時の素線間のバラケを防止することができ、かつ占積率と仕上寸法精度に優れる絶縁電線及びその製造方法並びに当該絶縁電線からなるコイルを提供することにある。   Accordingly, an object of the present invention is to provide an insulated wire that can prevent a variation between strands during winding without fusion between the strands, and is excellent in space factor and finish dimensional accuracy, and a method for manufacturing the same. Another object is to provide a coil made of the insulated wire.

本発明は、上記目的を達成するために、下記の絶縁電線及びその製造方法並びにコイルを提供する。   In order to achieve the above object, the present invention provides the following insulated wire, a method for manufacturing the same, and a coil.

［１］編み込み状の複数本のエナメル線又は編み込み状の複数本のリッツ線からなる横断面が平角形状の絶縁電線。
［２］前記編み込み状は、平編み状である前記［１］に記載の絶縁電線。
［３］前記エナメル線は、３〜１０本が並列されたエナメル線ユニットとして編み込まれている前記［１］又は前記［２］に記載の絶縁電線。
［４］前記平角形状のアスペクト比が１：３以上である前記［１］〜［３］のいずれか１つに記載の絶縁電線。
［５］前記［１］〜［４］のいずれか１つに記載の絶縁電線からなるコイル。
［６］複数本のエナメル線又は複数本のリッツ線を編み込み、編み込み状の絶縁電線を形成する工程と、前記編み込み状の絶縁電線を圧延変形して、その横断面を平角形状にする工程とを有する絶縁電線の製造方法。 [1] An insulated electric wire having a flat rectangular cross section composed of a plurality of braided enamel wires or a plurality of braided litz wires.
[2] The insulated wire according to [1], wherein the braided shape is a flat knitted shape.
[3] The insulated wire according to [1] or [2], wherein the enameled wire is braided as an enameled wire unit in which 3 to 10 wires are arranged in parallel.
[4] The insulated wire according to any one of [1] to [3], wherein the aspect ratio of the rectangular shape is 1: 3 or more.
[5] A coil comprising the insulated wire according to any one of [1] to [4].
[6] A step of knitting a plurality of enameled wires or a plurality of litz wires to form a braided insulated wire; a step of rolling the braided insulated wire to form a flat cross section thereof; The manufacturing method of the insulated wire which has this.

本発明によれば、素線間を融着しなくても巻線時の素線間のバラケを防止することができ、かつ占積率と仕上寸法精度に優れる絶縁電線及びその製造方法並びに当該絶縁電線からなるコイルを提供することができる。   According to the present invention, an insulated wire that can prevent a variation between wires at the time of winding without fusing the wires, and has excellent space factor and finish dimensional accuracy, and a method for manufacturing the same, and A coil made of an insulated wire can be provided.

（ａ）は、本発明の実施の形態に係る絶縁電線の一例を示す上面（平面）写真であり、（ｂ）は、同絶縁電線の下面（底面）写真であり、（ｃ）は、同絶縁電線の側面写真である。(A) is the upper surface (plane) photograph which shows an example of the insulated wire which concerns on embodiment of this invention, (b) is the lower surface (bottom surface) photograph of the insulated wire, (c) is the same It is a side photograph of an insulated wire. 図１（ａ）のII−II線で切断したときの切断部端面図である。FIG. 2 is an end view of a cut portion when cut along line II-II in FIG.

〔絶縁電線〕
本発明の実施の形態に係る絶縁電線は、編み込み状の複数本のエナメル線又は編み込み状の複数本のリッツ線からなり、横断面が平角形状である。以下、図を参照して本発明の実施の形態を説明する。 [Insulated wire]
The insulated wire according to the embodiment of the present invention is composed of a plurality of braided enamel wires or a plurality of braided litz wires, and has a rectangular cross section. Embodiments of the present invention will be described below with reference to the drawings.

図１（ａ）は、本発明の実施の形態に係る絶縁電線の一例を示す上面（平面）写真であり、（ｂ）は、同絶縁電線の下面（底面）写真であり、（ｃ）は、同絶縁電線の側面写真である。なお、図１（ｃ）は右側面写真であるが、左側面も右側面とほぼ同様の形態であるため左側面写真の添付は省略する。また、図２は、図１（ａ）のII−II線で切断したときの切断部端面図である。   Fig.1 (a) is an upper surface (plane) photograph which shows an example of the insulated wire which concerns on embodiment of this invention, (b) is a lower surface (bottom surface) photograph of the insulated wire, (c) is It is a side photograph of the insulated wire. Although FIG. 1C is a right side photograph, since the left side surface has almost the same form as the right side surface, attachment of the left side photograph is omitted. FIG. 2 is an end view of the cut portion when cut along line II-II in FIG.

図１〜２に示す本発明の実施の形態に係る絶縁電線１０は、編み込み状の複数本のエナメル線１からなる。   The insulated wire 10 according to the embodiment of the present invention shown in FIGS. 1 and 2 includes a plurality of braided enamel wires 1.

「編み込み状」とは、編み込まれていれば特にその編み込み方法は限定されるものではないが、図１〜２に示すように平編み状であることが好ましい。「平編み状」とは、平らに編まれた形状を言う。編み込みの本数、寸法等は、例えば、平編線の規格ＪＣＳ１２３６に則って設定できる。   The “knitted shape” is not particularly limited as long as it is knitted, but it is preferably a flat knitted shape as shown in FIGS. “Flat knitting” refers to a flat knitted shape. The number of braids, dimensions, and the like can be set in accordance with, for example, the standard JCS 1236 for flat knitting wires.

また、複数本のエナメル線１は、３〜１０本が並列されたエナメル線ユニットとして編み込まれていることが好ましく、４〜９本が並列されたエナメル線ユニットとして編み込まれていることがより好ましい。図１〜２では、６〜８本が並列されたエナメル線ユニット１Ａとして編み込まれている。エナメル線ユニットとして編み込まれることにより強固な編み込みが可能となる。   The plurality of enameled wires 1 are preferably knitted as an enameled wire unit in which 3 to 10 wires are arranged in parallel, and more preferably 4 to 9 are knitted as an enameled wire unit in parallel. . 1-2, 6-8 are woven as enameled wire units 1A arranged in parallel. By braiding as an enameled wire unit, strong braiding is possible.

エナメル線１としては、例えば、断面が円形状の銅導体の外周にポリウレタン、ポリアミドイミド、ポリエステルイミド、ポリイミド等からなる絶縁層を設けたものを使用できる。導体の素材は、銅に限られず、銅合金等であってもよい。また、導体の形状としては、丸線に限られず、平角導体等であってもよい。導体径は、特に限定されるものではないが、細径（例えば直径０．０５ｍｍ〜０．２６ｍｍ）のものが好ましい。エナメル線１には隣接するエナメル線１と融着させるための融着皮膜が施されていても良い。   As the enameled wire 1, for example, a copper conductor having a circular cross section with an insulating layer made of polyurethane, polyamideimide, polyesterimide, polyimide, or the like can be used. The material of the conductor is not limited to copper, and may be a copper alloy or the like. The shape of the conductor is not limited to a round wire, and may be a flat conductor or the like. The conductor diameter is not particularly limited, but a conductor having a small diameter (for example, 0.05 mm to 0.26 mm) is preferable. The enamel wire 1 may be provided with a fusion film for fusing with the adjacent enamel wire 1.

本実施の形態に係る絶縁電線１０は、図２に示されるように、横断面が平角形状である。ここで、平角形状とは、横断面の形状が絶縁電線１０全体として矩形状であり、その上辺、下辺、及び左右辺が直線状である形状を言う。図２では、辺上や角部に編み目等に基づく凹みが見られるが、本発明における平角形状にはこのような形状も含まれる。   As shown in FIG. 2, the insulated wire 10 according to the present embodiment has a flat rectangular cross section. Here, the flat shape means a shape in which the cross-sectional shape is a rectangular shape as a whole of the insulated wire 10, and the upper side, the lower side, and the left and right sides thereof are linear. In FIG. 2, dents based on stitches or the like are seen on the sides and corners, but the flat shape in the present invention includes such shapes.

絶縁電線１０を構成する各エナメル線１の形状は、絶縁電線１０の横断面を平角形状に加工する際に変形を受け、横断面が略円形状、長丸状、正方形状、長方形状等になっている。各エナメル線１が過度の変形を受けていないことが望ましい。   The shape of each enameled wire 1 constituting the insulated wire 10 is deformed when the cross section of the insulated wire 10 is processed into a flat rectangular shape, and the cross section is substantially circular, oval, square, rectangular, etc. It has become. It is desirable that each enamel wire 1 is not subjected to excessive deformation.

上記平角形状のアスペクト比は、１：３以上であることが好ましく、１：５以上であることがより好ましく、１：１０以上であることが更に好ましく、１：１０以上２０以下であることが最も好ましい。   The aspect ratio of the rectangular shape is preferably 1: 3 or more, more preferably 1: 5 or more, further preferably 1:10 or more, and 1:10 or more and 20 or less. Most preferred.

上記平角形状は、例えば、厚み０．５ｍｍ〜２ｍｍであり、幅１．５ｍｍ〜２０ｍｍであることが好ましい。   The flat shape is, for example, a thickness of 0.5 mm to 2 mm and a width of 1.5 mm to 20 mm.

なお、図１〜２に示す実施の形態においては、編み込み状の複数本のエナメル線１からなる絶縁電線１０を例に説明したが、複数本のリッツ線を編み込んで形成される、編み込み状の複数本のリッツ線からなる絶縁電線とすることもできる。当該リッツ線を構成する素線本数は特に限定されるものではない。また、素線径も限定されないが、細径（例えば直径０．０５ｍｍ〜０．２６ｍｍ）のものが好ましい。   In the embodiment shown in FIGS. 1 and 2, the insulated electric wire 10 including a plurality of braided enamel wires 1 has been described as an example, but a braided shape formed by braiding a plurality of litz wires. It can also be set as the insulated wire which consists of a plurality of litz wires. The number of strands constituting the litz wire is not particularly limited. Moreover, although the strand diameter is not limited, one having a small diameter (for example, a diameter of 0.05 mm to 0.26 mm) is preferable.

〔絶縁電線の製造方法〕
本発明の実施の形態に係る絶縁電線の製造方法は、複数本のエナメル線又は複数本のリッツ線を編み込み、編み込み状の絶縁電線を形成する工程と、前記編み込み状の絶縁電線を圧延変形して、その横断面を平角形状にする工程とを有する。 [Insulated wire manufacturing method]
A method of manufacturing an insulated wire according to an embodiment of the present invention includes a step of knitting a plurality of enameled wires or a plurality of litz wires to form a knitted insulated wire, and rolling and deforming the knitted insulated wire. And a step of making the cross section into a rectangular shape.

（編み込み状の絶縁電線を形成する工程）
本実施の形態における編み込み状の絶縁電線を形成する工程では、例えば、前述のエナメル線ユニット１Ａを平編線の規格ＪＣＳ１２３６に則って平編みすることで編み込み状の絶縁電線を得る。 (Process of forming braided insulated wire)
In the step of forming the braided insulated wire in the present embodiment, for example, the above-described enameled wire unit 1A is flat knitted in accordance with the standard JCS1236 of a flat knitted wire to obtain a braided insulated wire.

（横断面を平角形状にする工程）
本実施の形態における横断面を平角形状にする工程では、例えば、得られた編み込み状の絶縁電線を圧延装置（例えばカセットローラダイス）に通し、厚さと幅とが所定の寸法になるように上限及び左右を圧延し、横断面が平角形状の絶縁電線を作製する。 (Process to make the cross section flat)
In the step of flattening the cross section in the present embodiment, for example, the obtained braided insulated wire is passed through a rolling device (for example, a cassette roller die), and the upper limit is set so that the thickness and the width become predetermined dimensions. And the left and right are rolled to produce an insulated wire having a flat cross section.

〔コイル〕
本発明の実施の形態に係るコイルは、本発明の実施の形態に係る上記の絶縁電線からなる。当該コイルは、本実施の形態に係る絶縁電線を巻線することで得ることが出来る。 〔coil〕
The coil which concerns on embodiment of this invention consists of said insulated wire which concerns on embodiment of this invention. The coil can be obtained by winding the insulated wire according to the present embodiment.

〔本発明の実施の形態の効果〕
本発明の実施の形態によれば、編み込み状の複数本のエナメル線又は編み込み状の複数本のリッツ線からなる絶縁電線の横断面を平角形状とすることで線同士の結束力を強くしたため、巻線時の素線間のバラケを防止することができるので、リッツ線に比べて加工性や巻線性が格段に向上し、製品の適用範囲を広げることが可能となり、かつ、占積率と仕上寸法精度に優れた絶縁電線が得られるため、モータ、トランス、発電器、充電器等の小型化が可能となる。また、高周波時における損失をリッツ線と同様に抑えることができる。 [Effect of the embodiment of the present invention]
According to the embodiment of the present invention, since the cross-section of the insulated wire consisting of a plurality of braided enameled wires or a plurality of braided litz wires is made into a rectangular shape, the binding force between the wires is increased, Since it is possible to prevent the breakage between the strands during winding, the workability and winding performance are significantly improved compared to the litz wire, the product application range can be expanded, and the space factor Since an insulated wire excellent in finishing dimensional accuracy can be obtained, it is possible to reduce the size of motors, transformers, generators, chargers, and the like. Moreover, the loss at the time of a high frequency can be suppressed similarly to a litz wire.

以下に、本発明を実施例に基づいて更に詳しく説明するが、本発明はこれらに限定されるものではない。   Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited thereto.

図１〜２に示す本発明の実施の形態に係る絶縁電線１０を以下の通り作製した（実施例１〜３）。   The insulated wire 10 which concerns on embodiment of this invention shown to FIGS. 1-2 was produced as follows (Examples 1-3).

〔編み込み工程〕
エナメル線１として、断面が円形状の銅導体（直径０．１５ｍｍ）の外周にポリウレタンからなる絶縁層（厚さ７μｍ）を設けたものを使用した。このエナメル線１を６〜８本並列したエナメル線ユニット１Ａ（ユニット数：１６）を下記表１に記載の条件で平編みした。 [Knitting process]
As the enameled wire 1, a copper conductor having a circular cross section (diameter: 0.15 mm) provided with an insulating layer (thickness: 7 μm) made of polyurethane on the outer periphery was used. An enameled wire unit 1A (unit number: 16) in which 6 to 8 enameled wires 1 are arranged in parallel was plain knitted under the conditions shown in Table 1 below.

Figure 2017195045
Figure 2017195045

〔圧延工程〕
平編みして得られた絶縁電線をカセットローラダイス（製品名：ＣＲＤ−６０、株式会社吉田記念製）に通すことによって圧延した。具体的には、カセットローラダイスを多段に設置し、絶縁電線の上下を圧延した後、左右を圧延することで断面平角形状に圧延された絶縁電線を作製した。仕上寸法の設計値は、幅２．２ｍｍ×厚さ０．５ｍｍとした。 [Rolling process]
The insulated wire obtained by flat knitting was rolled by passing it through a cassette roller die (product name: CRD-60, manufactured by Yoshida Memorial Co., Ltd.). Specifically, cassette roller dies were installed in multiple stages, and the insulated wire was rolled into a rectangular shape by rolling the left and right sides after rolling the insulated wire up and down. The design value of the finishing dimension was 2.2 mm width × 0.5 mm thickness.

作製した絶縁電線の幅と厚さをマイクロメータによって測定したところ、下記表２に示す通りであった。   When the width and thickness of the produced insulated wire were measured with a micrometer, they were as shown in Table 2 below.

Figure 2017195045
Figure 2017195045

表２より、実施例１〜３のいずれも、仕上寸法の設計値に対して、ばらつきが±２％以内（幅２．１５６ｍｍ〜２．２４４ｍｍ、厚さ０．４９ｍｍ〜０．５１ｍｍ）にすることができ、良好な寸法精度が得られていることが分かる。   From Table 2, in all of Examples 1 to 3, the variation is within ± 2% (width 2.156 mm to 2.244 mm, thickness 0.49 mm to 0.51 mm) with respect to the design value of the finishing dimension. It can be seen that good dimensional accuracy is obtained.

また、実施例１〜３の絶縁電線を巻線してコイルを作製した際、素線間のバラケが生じなかった。また、隙間無く巻線することができ、占積率にも優れていた。   Moreover, when winding the insulated wire of Examples 1-3 and producing a coil, the variation between strands did not arise. Moreover, it was able to wind with no gap, and the space factor was excellent.

なお、本発明は、上記実施の形態及び実施例に限定されず種々に変形実施が可能である。   In addition, this invention is not limited to the said embodiment and Example, A various deformation | transformation implementation is possible.

１：エナメル線、１Ａ：エナメル線ユニット、１０：絶縁電線 1: Enamel wire, 1A: Enamel wire unit, 10: Insulated wire

Claims (6)

編み込み状の複数本のエナメル線又は編み込み状の複数本のリッツ線からなる横断面が平角形状の絶縁電線。   An insulated electric wire having a rectangular cross section made of a plurality of braided enamel wires or a plurality of braided litz wires. 前記編み込み状は、平編み状である請求項１に記載の絶縁電線。   The insulated wire according to claim 1, wherein the braided shape is a flat knitted shape. 前記エナメル線は、３〜１０本が並列されたエナメル線ユニットとして編み込まれている請求項１又は請求項２に記載の絶縁電線。   The insulated wire according to claim 1 or 2, wherein the enameled wire is knitted as an enameled wire unit in which 3 to 10 wires are arranged in parallel. 前記平角形状のアスペクト比が１：３以上である請求項１〜３のいずれか１項に記載の絶縁電線。   The insulated wire according to any one of claims 1 to 3, wherein the rectangular shape has an aspect ratio of 1: 3 or more. 請求項１〜４のいずれか１項に記載の絶縁電線からなるコイル。   The coil which consists of an insulated wire of any one of Claims 1-4. 複数本のエナメル線又は複数本のリッツ線を編み込み、編み込み状の絶縁電線を形成する工程と、
前記編み込み状の絶縁電線を圧延変形して、その横断面を平角形状にする工程とを有する絶縁電線の製造方法。
Knitting a plurality of enameled wires or a plurality of litz wires, forming a braided insulated wire; and
And a step of rolling the braided insulated wire to form a flat cross section of the insulated wire.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109616261A (en) * 2018-12-27 2019-04-12 哈尔滨工业大学 The preparation method of litz wire suitable for high frequency magnetic coupling type wireless charging system
EP3992996A1 (en) * 2020-10-28 2022-05-04 ETA Green Power Ltd. An inductor coil

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06168631A (en) * 1992-11-30 1994-06-14 Hitachi Cable Ltd Litz wire for high frequency transformer and double braided litz wire and manufacture thereof
JPH0822720A (en) * 1994-07-07 1996-01-23 Riken Densen Kk Litz wire
JPH10233128A (en) * 1997-02-19 1998-09-02 Jiemitsukusu Kk High-frequency cable
JP2002027693A (en) * 2000-07-10 2002-01-25 Mitsubishi Electric Corp Coil conductor for dynamo-electric machine
JP2002358840A (en) * 2001-05-31 2002-12-13 Totoku Electric Co Ltd Flat braided litz wire for high frequency coil
JP2014230474A (en) * 2013-05-27 2014-12-08 昭和電線デバイステクノロジー株式会社 Non-contact power supply system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06168631A (en) * 1992-11-30 1994-06-14 Hitachi Cable Ltd Litz wire for high frequency transformer and double braided litz wire and manufacture thereof
JPH0822720A (en) * 1994-07-07 1996-01-23 Riken Densen Kk Litz wire
JPH10233128A (en) * 1997-02-19 1998-09-02 Jiemitsukusu Kk High-frequency cable
JP2002027693A (en) * 2000-07-10 2002-01-25 Mitsubishi Electric Corp Coil conductor for dynamo-electric machine
JP2002358840A (en) * 2001-05-31 2002-12-13 Totoku Electric Co Ltd Flat braided litz wire for high frequency coil
JP2014230474A (en) * 2013-05-27 2014-12-08 昭和電線デバイステクノロジー株式会社 Non-contact power supply system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109616261A (en) * 2018-12-27 2019-04-12 哈尔滨工业大学 The preparation method of litz wire suitable for high frequency magnetic coupling type wireless charging system
EP3992996A1 (en) * 2020-10-28 2022-05-04 ETA Green Power Ltd. An inductor coil
WO2022090276A1 (en) * 2020-10-28 2022-05-05 Eta Green Power Ltd. An inductor coil

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