JP2006165465A - Winding component - Google Patents

Winding component Download PDF

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JP2006165465A
JP2006165465A JP2004358523A JP2004358523A JP2006165465A JP 2006165465 A JP2006165465 A JP 2006165465A JP 2004358523 A JP2004358523 A JP 2004358523A JP 2004358523 A JP2004358523 A JP 2004358523A JP 2006165465 A JP2006165465 A JP 2006165465A
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magnetic
windings
wire ring
ring component
winding
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Hatsuo Matsumoto
初男 松本
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Tokin Corp
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NEC Tokin Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain a winding component which is constructed so as to be downsized, thinned, and efficiently give a leakage magnetic flux; and which contributes to an effect for reducing a ripple current in an applied circuit. <P>SOLUTION: In the winding component, four windings are turned around a magnetic core, the windings form a closed magnetic circuit each other, and the terminal of one side of each windings is bound in a bundle to be used. When passing a current to at least one winding among each windings 1, 2, 3, and 4, the winding direction of the winding is located so that an induced voltage of reverse polarity is generated in all the other windings to pass a reverse current. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、スイッチング電源回路に供する磁芯及び線輪部品に係わり、特に低損失で高電力密度な電力変換機に好適な線輪部品に関する。   The present invention relates to a magnetic core and a wire ring component used for a switching power supply circuit, and more particularly to a wire ring component suitable for a power converter having a low loss and a high power density.

従来の線輪部品、特にチョークコイル、およびその使用方法について説明する。従来より、降圧あるいは昇圧型のチョッパ回路を用いたＤＣ−ＤＣコンバータには、磁気エネルギーを一時、蓄積して円滑な電力変換を行うためチョークコイルが広く用いられている。その処理電力容量を大幅に増す場合には、チョッパ回路部をＮ並列に多重化し、各々の動作位相を、π／Ｎラジアンずらして動作させるMurti-Phazeコンバータが有効な手段として用いられている。   A conventional wire ring component, particularly a choke coil, and a method of using the same will be described. 2. Description of the Related Art Conventionally, choke coils have been widely used in DC-DC converters using a step-down or step-up chopper circuit to store magnetic energy temporarily and perform smooth power conversion. In order to greatly increase the processing power capacity, a Murti-Phaze converter that multiplexes chopper circuit units in N parallel and operates each phase shifted by π / N radians is used as an effective means.

図７は、従来のチョークコイルの説明図である。ドラム型コア５１に巻線７１が巻かれた、単一の構造である。また、図８は、図７のチョークコイルの適用回路図であり、２−PhazeＤＣ−ＤＣコンバータの構成例である。   FIG. 7 is an explanatory diagram of a conventional choke coil. The drum core 51 has a single structure in which a winding 71 is wound. FIG. 8 is an application circuit diagram of the choke coil of FIG. 7 and is a configuration example of a 2-Phaze DC-DC converter.

図８に示す回路は、図７に示すような個別のチョークコイルＬ１，Ｌ２が用いられており、各phazeのスイッチ１５ａ，１６ｂが交互がオン・オフすることで回路電流を単独のチョッパよりも分担、軽減して高出力化を可能としている。   The circuit shown in FIG. 8 uses individual choke coils L1 and L2 as shown in FIG. 7, and the circuit current is more than that of a single chopper by alternately turning on and off the switches 15a and 16b of each phaze. High output is possible by sharing and reducing.

図９は、従来のチョークコイルの他の例の説明図である。図９に示すチョークコイルは、ドラム型コア５２に、巻線７２が巻かれた、第１のチョークコイルと、ドラム型コア５３に、巻線７３が巻かれた、第２のチョークコイルとを接近させて、漏洩磁束の影響が生じるように配置したチョークコイルである。   FIG. 9 is an explanatory diagram of another example of a conventional choke coil. The choke coil shown in FIG. 9 includes a first choke coil in which a winding 72 is wound around a drum core 52, and a second choke coil in which a winding 73 is wound around a drum core 53. It is a choke coil arranged so as to be close to each other and to be affected by leakage magnetic flux.

図１０は、図９のチョークコイルの適用回路図であり、結合型２−PhazeＤＣ−ＤＣコンバータの構成例である。図１０の適用回路は、互いのチョークコイル間の相互誘導利得を利用する方法であって、それぞれの第１のチョークコイルと、第２のチョークコイル間の相互誘導作用によって、図１０に示すような等価的回路構成の結合型の形態で適用し、図８の適用回路に比較して、リップル電流の低減が実現される。図７に示したように、個別のチョークコイルを用いて、インダクタンスを増やすことなく、リップル電流の低減をはかれる。   FIG. 10 is an application circuit diagram of the choke coil of FIG. 9 and is a configuration example of a coupled 2-Phaze DC-DC converter. The application circuit of FIG. 10 is a method that uses mutual induction gains between the choke coils, as shown in FIG. 10 by the mutual induction action between the respective first choke coils and the second choke coils. The present invention is applied in a coupled form with an equivalent circuit configuration, and a reduction in ripple current is realized as compared with the application circuit of FIG. As shown in FIG. 7, the ripple current can be reduced without increasing the inductance by using an individual choke coil.

図７、図９に示す以外の線輪部品の例として、特許文献１には、第１分割コアと第２分割コアの間に空隙部を有するコイル部品について記載されている。空隙部を有することによって、大電流に対応できるコイル部品となっている。   As an example of a wire ring component other than those shown in FIGS. 7 and 9, Patent Document 1 describes a coil component having a gap between the first divided core and the second divided core. By having the gap, the coil component can cope with a large current.

特開２００１ー１６７９３２号公報Japanese Patent Laid-Open No. 2001-167932

従来の技術による結合型チョークコイルでは、単に近接させるだけの構成であり、相互の磁気結合は高々数％程度と低いため、相互誘導効果に伴うリップル電流の低減効果は殆ど得られないという問題点があった。   The conventional coupled choke coil has a configuration that is simply brought close to each other, and since the mutual magnetic coupling is as low as several percent at most, the effect of reducing the ripple current due to the mutual induction effect is hardly obtained. was there.

従って、本発明の課題は、小型、薄型で、かつ効率良く漏洩磁束を与える構造であって、適用回路においては、リップル電流の低減効果に寄与する線輪部品を提供することである。   Accordingly, an object of the present invention is to provide a wire ring component that contributes to the effect of reducing ripple current in an applied circuit, which is small, thin, and has a structure that efficiently provides a leakage magnetic flux.

従来技術の問題点を解決するため、本発明は、磁芯に複数の巻線が巻回され、前記巻線は相互に同じ閉磁路を形成すると共に、相互に異なる閉磁路を形成する磁路上に巻回され、かつ各巻線（コイル）の片側の端末は結束されて使用される構成の線輪部品において、各々の巻線（コイル）のうちのひとつに（コイル）電流を流した際に、他の全ての巻線（コイル）には逆向き電流が流れる線輪部品である。   In order to solve the problems of the prior art, the present invention provides a plurality of windings wound around a magnetic core, the windings forming the same closed magnetic path with each other and different magnetic closed paths. In a wire ring component having a configuration in which one end of each winding (coil) is bundled and used, when a (coil) current is passed through one of each winding (coil) All other windings (coils) are wire ring components in which a reverse current flows.

更に、前記磁芯は、金属粉末磁性材料等の比透磁率がある程度小さな材料で構成される場合には、当該磁路中には特に空隙を設けずに構成し、また、前記磁芯がフェライトなどの比較的比透磁率の高い軟磁性材料の場合には該該閉磁路に設ける空隙は各コイルに対してそれぞれ２箇所となるように構成した線輪部品である。   Further, in the case where the magnetic core is made of a material having a relatively small relative permeability such as a metal powder magnetic material, the magnetic path is not particularly provided in the magnetic path, and the magnetic core is made of ferrite. In the case of a soft magnetic material having a relatively high relative permeability, such as a wire ring component, the gaps provided in the closed magnetic path are two portions for each coil.

即ち、本発明は、磁芯に複数の巻線を巻回し前記巻線は相互に同じ閉磁路を形成すると共に、相互に異なる閉磁路を形成する磁路上に巻回され、かつ各巻線の片側の端末は結束されて使用される構成の線輪部品において、前記各々巻線のうちの、少なくとも一つに電流を流した際に、他の全ての巻線には、逆極性の誘起電圧を発生する、逆向き電流が流れるように、前記巻線の巻き方向を配置した線輪部品である。   That is, the present invention is configured to wind a plurality of windings around a magnetic core, the windings form the same closed magnetic path, and are wound on magnetic paths that form different closed magnetic paths, and one side of each winding. In the wire ring component configured to be bundled and used, when an electric current is passed through at least one of the windings, an induced voltage having a reverse polarity is applied to all the other windings. It is a wire ring component which arrange | positions the winding direction of the said coil | winding so that the reverse current which generate | occur | produces may flow.

また、本発明は、前記磁芯は高比透磁率の軟磁性材料であり、前記磁芯の閉磁路に空隙が設けられた線輪部品である。   In the present invention, the magnetic core is a soft magnetic material having a high relative permeability, and a wire ring component in which a gap is provided in a closed magnetic path of the magnetic core.

また、本発明は、前記磁芯の閉磁路に設けられ空隙は前記各巻線に対してそれぞれ少なくとも２箇所設けられ線輪部品である。   Further, the present invention is a wire ring component provided in the closed magnetic path of the magnetic core and provided with at least two gaps for each winding.

また、本発明は、前記磁芯の材質はフェライト系磁性材料とする線輪部品である。   In the present invention, the magnetic core is made of a ferrite magnetic material.

また、本発明は、前記磁芯は比透磁率の低い軟磁性材料であり、前記磁芯の閉磁路には、空隙を設けない線輪部品である。   Further, according to the present invention, the magnetic core is a soft magnetic material having a low relative permeability, and is a wire ring component in which no gap is provided in a closed magnetic path of the magnetic core.

また、本発明は、前記磁芯の材質は金属粉末磁心材料と樹脂材料との混合体である線輪部品である。   Further, the present invention provides the wire ring component in which the material of the magnetic core is a mixture of a metal powder magnetic core material and a resin material.

本発明による線輪部品によれば、巻線相互間の磁気結合を飛躍的に高めることが可能となる。これをMulti-Phazeコンバータに適用することで小さなインダクタンスにもかかわらずリップル電流を大幅に低減することが可能となる。   According to the wire ring component of the present invention, it is possible to dramatically increase the magnetic coupling between the windings. Applying this to the Multi-Phaze converter makes it possible to significantly reduce the ripple current despite the small inductance.

小さなインダクタンスで済む点が小型化効果をもたらすのみならず、リップル電流の低減は回路素子の定格低減の他、実効電流の低減に繋がり大幅な銅損の低減化に繋がるため、小型大容量のＤＣ−ＤＣコンバータを高効率に達成することが可能となり、工業的に益するところ極めて大なるものといえる。   The fact that a small inductance is sufficient not only brings about a miniaturization effect, but also the reduction of ripple current leads to a reduction in circuit element ratings and a reduction in effective current, leading to a significant reduction in copper loss. -It becomes possible to achieve a DC converter with high efficiency, and it can be said that it is extremely large in terms of industrial benefits.

従って、本発明によれば、小型、薄型で、かつ効率良く漏洩磁束を与える構造であって、適用回路においてはリップル電流の低減効果に寄与する線輪部品を提供できる。   Therefore, according to the present invention, it is possible to provide a wire ring component that is small, thin, and has a structure that efficiently provides a leakage magnetic flux, and contributes to a ripple current reduction effect in an applied circuit.

以下、本発明の線輪部品の実施の形態について図面を参照して説明する。本発明の線輪部品は、磁芯に複数の巻線が巻回され、前記巻線は相互に同じ閉磁路を形成すると共に、相互に異なる閉磁路を形成する磁路上に巻回され、かつ、各巻線の片側の端末は結束されて使用される構成の線輪部品において、前記各々巻線のうちの、少なくとも一つに電流を流した際に、他の全ての巻線には、逆極性の誘起電圧を発生する、逆向き電流が流れるように、前記巻線の巻き方向を配置した構成である。   Hereinafter, embodiments of the wire ring component of the present invention will be described with reference to the drawings. In the wire ring component of the present invention, a plurality of windings are wound around a magnetic core, and the windings are wound on magnetic paths that form the same closed magnetic path and different closed magnetic paths, and In the wire ring component having a configuration in which one end of each winding is bundled and used, when a current is passed through at least one of the windings, all the other windings are reversed. In this configuration, the winding direction of the winding is arranged so that a reverse current that generates an induced voltage of polarity flows.

ここで、前記磁芯は高比透磁率の軟磁性材料であり、例えばフェライト系磁性材料とし、前記磁芯の閉磁路に空隙が設けられている。更に、前記磁芯の閉磁路に設けられ空隙は前記各巻線に対してそれぞれ少なくとも２箇所設けられている。   Here, the magnetic core is a soft magnetic material having a high relative permeability, for example, a ferrite-based magnetic material, and a gap is provided in a closed magnetic path of the magnetic core. Further, at least two gaps are provided for each winding in the closed magnetic path of the magnetic core.

更に、他の例として、前記磁芯は比透磁率の低い軟磁性材料であり、例えば、金属粉末磁心材料と樹脂材料との混合体であり、この場合には、前記磁芯の閉磁路には、空隙が設けられない。   Furthermore, as another example, the magnetic core is a soft magnetic material having a low relative permeability, for example, a mixture of a metal powder magnetic core material and a resin material. In this case, the magnetic core has a closed magnetic path. Are not provided with voids.

（実施の形態１）
図１は、本発明の実施の形態１の線輪部品の説明図である。図１（ａ）は斜視図であり、図１（ｂ）は巻線を透視した上面図であり、図１（ｃ）は磁芯の斜視図である。本発明の線輪部品は、４-phaze型ＤＣ−ＤＣコンバータに使用される。 (Embodiment 1)
FIG. 1 is an explanatory diagram of a wire ring component according to the first embodiment of the present invention. FIG. 1 (a) is a perspective view, FIG. 1 (b) is a top view seen through a winding, and FIG. 1 (c) is a perspective view of a magnetic core. The wire ring component of the present invention is used in a 4-phaze type DC-DC converter.

図１（ａ）に示すように、本発明の線輪部品の構造は、上コア１０、空隙２０、下コア３０の積層構造である。更に、図１（ｃ）に示すように、下コア３０には、溝部３０ａ，３０ｂが設けられており、図１（ｂ）に示すように、前記溝部内に巻線１，２，３，４が巻かれている。   As shown in FIG. 1A, the structure of the wire ring component of the present invention is a laminated structure of an upper core 10, an air gap 20, and a lower core 30. Further, as shown in FIG. 1 (c), the lower core 30 is provided with groove portions 30a, 30b. As shown in FIG. 1 (b), the windings 1, 2, 3, 3 are provided in the groove portion. 4 is wound.

各巻線１，２，３，４には、それぞれ引き出し部ａ、ｂ、およびｃ、ｄ、およびｅ、ｆならびにｇ、ｈが設けられている。即ち、４-phazeの結合型ＤＣ−ＤＣコンバータに対応した巻線が磁芯に巻回され、それぞれの巻線に流れる電流によって生じる磁界に対し、それぞれ互いに閉磁路を形成し、かつ各巻線の片側の端末は結束されて使用される構成において、各々のコイルのうちのひとつにコイル電流を流した際に、他の全てのコイルには逆向き電流が流れるような構成としている。   Each winding 1, 2, 3, 4 is provided with lead-out portions a, b, c, d, e, f and g, h. That is, windings corresponding to a 4-phaze coupled DC-DC converter are wound around a magnetic core, and each forms a closed magnetic circuit with respect to a magnetic field generated by a current flowing through each winding. In the configuration in which the terminals on one side are bound and used, when a coil current is passed through one of the coils, a reverse current flows through all the other coils.

前記磁芯はフェライト系磁性材料であり、比較的比透磁率の高い軟磁性材料であって、この場合には比較的大きな電流を流すためには磁路中に空隙を必要としている。   The magnetic core is a ferrite-based magnetic material and is a soft magnetic material having a relatively high relative permeability. In this case, a gap is required in the magnetic path in order to pass a relatively large current.

図４は、本発明の実施の形態１の線輪部品の一般的模式図である。図４に示すように、それぞれの空隙は各巻線相互間の各コイルに対してそれぞれ２箇所となるように構成している。   FIG. 4 is a general schematic diagram of the wire ring component according to the first embodiment of the present invention. As shown in FIG. 4, each gap is configured to have two locations for each coil between the windings.

なお、他の例として、前記磁芯が金属粉末磁性材料と樹脂との混合体のように、比透磁率がある程度小さな材料で構成される場合には、磁路中には特に空隙を設けずに構成して良い。   As another example, when the magnetic core is made of a material having a relatively small relative permeability, such as a mixture of a metal powder magnetic material and a resin, no gap is provided in the magnetic path. May be configured.

図５は、本発明の実施の形態１の線輪部品に関する適用回路図である。即ち、４-phazeの結合型ＤＣ−ＤＣコンバータの回路図である。本発明の線輪部品である４-phaze用の結合型チョークコイルの構成によって、それぞれの巻線に流れる電流による磁界に伴う磁気結合は極めて高く、かつ均等になり、従来技術のチョークコイルでは高々数％の磁気結合が、いずれのphazeに対しても６０％以上の値を得ることが確認された。   FIG. 5 is an application circuit diagram relating to the wire ring component according to the first embodiment of the present invention. That is, it is a circuit diagram of a 4-phaze coupled DC-DC converter. With the configuration of the coupled choke coil for 4-phaze which is the wire ring component of the present invention, the magnetic coupling due to the magnetic field due to the current flowing through each winding becomes extremely high and uniform. It was confirmed that several percent of the magnetic coupling obtains a value of 60% or more for any phaze.

図６は、本発明の実施の形態１の適用回路での動作電流波形と従来の適用回路の動作電流波形との比較図である。４-phazeの結合型ＤＣ−ＤＣコンバータに搭載した際のリップル電流の結果は、従来技術によるチョークコイルの場合に比べて、本発明による結合型チョークコイルの場合は、それぞれのphaze間の相互誘導による階段状の電流軌跡も明白であり、大幅なリップル電流値の低減効果が得られていることがわかる。   FIG. 6 is a comparison diagram of the operating current waveform of the application circuit according to the first embodiment of the present invention and the operating current waveform of the conventional application circuit. As a result of ripple current when mounted on a 4-phaze coupled DC-DC converter, compared with the choke coil according to the prior art, the coupled choke coil according to the present invention has mutual induction between the phazes. The step-like current trajectory due to is obvious, and it can be seen that a significant effect of reducing the ripple current value is obtained.

（実施の形態２）
図２は、本発明の第２の実施の形態の線輪部品の説明図である。図２（ａ）は、斜視図であり、図２（ｂ）は巻線を透視した上面図である。図２（ａ）に示すように、本発明の線輪部品の構造は、上コア１００、下コア３００の積層構造である。更に、下コア３００には、溝部が設けられており、図２（ｂ）に示すように、前記溝部内に巻線１ａ，２ａ，３ａが巻かれている。各巻線１ａ，２ａ，３ａには、それぞれ引き出し部ａ，ｂ、およびｃ，ｄならびにｅ，ｆが設けられている。 (Embodiment 2)
FIG. 2 is an explanatory diagram of the wire ring component according to the second embodiment of the present invention. 2A is a perspective view, and FIG. 2B is a top view of the windings seen through. As shown in FIG. 2A, the structure of the wire ring component of the present invention is a laminated structure of an upper core 100 and a lower core 300. Furthermore, the lower core 300 is provided with a groove, and windings 1a, 2a, and 3a are wound around the groove as shown in FIG. 2 (b). Each winding 1a, 2a, 3a is provided with lead-out portions a, b, c, d and e, f, respectively.

図２は、本発明による線輪部品であって、３-phaze用の結合型チョークコイルであり、この場合も実施の形態１にて説明した４-phaze用の結合型チョークコイルと同様の思想で構成されており、それぞれの巻線に流れる電流による磁界に伴う磁気結合は極めて高く、かつ均等である。   FIG. 2 shows a wire ring component according to the present invention, which is a combined choke coil for 3-phaze. In this case, the same idea as the combined choke coil for 4-phaze described in the first embodiment is used. The magnetic coupling accompanying the magnetic field due to the current flowing in each winding is extremely high and uniform.

（実施の形態３）
図３は、本発明の第３の実施の形態の線輪部品の説明図である。図３（ａ）は斜視図であり、図３（ｂ）は巻線を透視した上面図である。図３（ａ）に示すように、本発明の線輪部品の構造は、上コア４００、下コア５００の積層構造である。更に、下コア５００には溝部が設けられており、図３（ｂ）に示すように、前記溝部内に、巻線１ｂ，２ｂが巻かれている。各巻線１ｂ，２ｂには、それぞれ引き出し部ａ，ｂ、およびｃ，ｄが設けられている。このように、図３は本発明による２-phaze用の結合型チョークコイルの例であって、それぞれの巻線に流れる電流による磁界に伴う磁気結合は極めて高く、かつ均等である。 (Embodiment 3)
FIG. 3 is an explanatory diagram of a wire ring component according to a third embodiment of the present invention. FIG. 3A is a perspective view, and FIG. 3B is a top view of the windings seen through. As shown in FIG. 3A, the structure of the wire ring component of the present invention is a laminated structure of an upper core 400 and a lower core 500. Further, the lower core 500 is provided with a groove, and windings 1b and 2b are wound in the groove as shown in FIG. The windings 1b and 2b are provided with lead portions a and b and c and d, respectively. Thus, FIG. 3 is an example of a coupled choke coil for 2-phaze according to the present invention, and the magnetic coupling due to the magnetic field due to the current flowing through each winding is extremely high and uniform.

本発明の実施の形態１の線輪部品の説明図。図１（ａ）は斜視図、図１（ｂ）は巻線を透視した上面図、図１（ｃ）は磁芯の斜視図。Explanatory drawing of the wire ring components of Embodiment 1 of this invention. 1 (a) is a perspective view, FIG. 1 (b) is a top view through which a winding is seen, and FIG. 1 (c) is a perspective view of a magnetic core. 本発明の実施の形態２の線輪部品の説明図。図２（ａ）は斜視図、図２（ｂ）は巻線を透視した上面図。Explanatory drawing of the wire ring components of Embodiment 2 of this invention. 2A is a perspective view, and FIG. 2B is a top view of the windings seen through. 本発明の実施の形態３の線輪部品の説明図。図３（ａ）は斜視図、図３（ｂ）は巻線を透視した上面図。Explanatory drawing of the wire ring components of Embodiment 3 of this invention. 3A is a perspective view, and FIG. 3B is a top view of the windings seen through. 本発明の実施の形態の線輪部品の一般的模式図。The general schematic diagram of the wire ring component of the embodiment of the present invention. 本発明の実施の形態１の線輪部品に関する適用回路図。FIG. 3 is an application circuit diagram related to the wire ring component according to the first embodiment of the present invention. 本発明の実施の形態１の適用回路での動作電流波形と従来の適用回路の動作電流波形との比較図。The comparison figure of the operation current waveform in the application circuit of Embodiment 1 of this invention and the operation current waveform of the conventional application circuit. 従来のチョークコイルの説明図。Explanatory drawing of the conventional choke coil. 図７のチョークコイルの適用回路図。FIG. 8 is an application circuit diagram of the choke coil of FIG. 7. 従来のチョークコイルの他の例の説明図。Explanatory drawing of the other example of the conventional choke coil. 図９のチョークコイルの適用回路図。FIG. 10 is an application circuit diagram of the choke coil of FIG. 9.

符号の説明Explanation of symbols

１，２，３，４，７，７１，７２，７３ 巻線
１ａ，２ａ，３ａ 巻線
１ｂ，２ｂ 巻線
ａ１，ｂ１，ｃ１，ｄ１，ｅ１，ｆ１，ｇ１，ｈ１ 巻線の引き出し部
５ 磁芯
６，２０ 空隙
１０，１００，４００ 上コア
１５，１６，１７，１８，１５ａ，１５ｂ，１６ａ，１６ｂ スイッチ
３０，３００，５００ 下コア
３０ａ，３０ｂ 溝部
５１，５２，５３ ドラム型コア
ａ，ｂ，ｃ，ｄ，ｅ，ｆ，ｇ，ｈ 引き出し部 1, 2, 3, 4, 7, 71, 72, 73 Winding 1a, 2a, 3a Winding
1b, 2b winding
a1, b1, c1, d1, e1, f1, g1, h1 Winding lead-out part 5 Magnetic core 6, 20 Air gap 10, 100, 400 Upper core
15, 16, 17, 18, 15a, 15b, 16a, 16b Switch 30, 300, 500 Lower core 30a, 30b Groove 51, 52, 53 Drum type core a, b, c, d, e, f, g, h Drawer

Claims (6)

磁芯に複数の巻線が巻回され、前記巻線は相互に同じ閉磁路を形成すると共に、相互に異なる閉磁路を形成する磁路上に巻回され、かつ各巻線の片側の端末は結束されて使用される構成の線輪部品において、前記各々巻線のうちの、少なくとも一つに電流を流した際に、他の全ての巻線には、逆極性の誘起電圧を発生する、逆向き電流が流れるように前記巻線の巻き方向を配置したことを特徴とする線輪部品。   A plurality of windings are wound around a magnetic core, and the windings are wound on magnetic paths that form the same closed magnetic path and different closed magnetic paths, and one end of each winding is bound In the wire ring component having a configuration used, when an electric current is passed through at least one of the windings, a reverse polarity induced voltage is generated in all the other windings. A wire ring component, wherein the winding direction of the winding is arranged so that a direction current flows. 前記磁芯は、高比透磁率の軟磁性材料であり、前記磁芯の閉磁路に、空隙が設けられたことを特徴とする請求項１の記載の線輪部品。   The wire ring component according to claim 1, wherein the magnetic core is a soft magnetic material having a high relative permeability, and a gap is provided in a closed magnetic path of the magnetic core. 前記磁芯の閉磁路に設けられた空隙は、前記各巻線に対してそれぞれ少なくとも２箇所設けられたことを特徴とする請求項２に記載の線輪部品。   The wire ring component according to claim 2, wherein at least two gaps are provided in the closed magnetic path of the magnetic core with respect to each of the windings. 前記磁芯の材質は、フェライト系磁性材料とすることを特徴とする請求項２または３のいずれかに記載の線輪部品。   The wire ring component according to claim 2, wherein the magnetic core is made of a ferrite magnetic material. 前記磁芯は比透磁率の低い軟磁性材料であり、前記磁芯の閉磁路には、空隙を設けないことを特徴とする請求項１の記載の線輪部品。   The wire ring component according to claim 1, wherein the magnetic core is a soft magnetic material having a low relative permeability, and no gap is provided in a closed magnetic path of the magnetic core. 前記磁芯の材質は、金属粉末磁心材料と樹脂材料との混合体であることを特徴とする請求項２または３のいずれかに記載の線輪部品。   4. The wire ring component according to claim 2, wherein the magnetic core is made of a mixture of a metal powder magnetic core material and a resin material.
JP2004358523A 2004-12-10 2004-12-10 Winding component Pending JP2006165465A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009170620A (en) * 2008-01-16 2009-07-30 Honda Motor Co Ltd Multi-parallel magnetism-offsetting transformer and power conversion circuit
JP2010192682A (en) * 2009-02-18 2010-09-02 Railway Technical Res Inst Polyphase integrated type smoothing reactor
JP2011520259A (en) * 2008-05-02 2011-07-14 ヴィシェイ デール エレクトロニクス インコーポレイテッド Coupling inductor and manufacturing method thereof
US10446309B2 (en) 2016-04-20 2019-10-15 Vishay Dale Electronics, Llc Shielded inductor and method of manufacturing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009170620A (en) * 2008-01-16 2009-07-30 Honda Motor Co Ltd Multi-parallel magnetism-offsetting transformer and power conversion circuit
JP2011520259A (en) * 2008-05-02 2011-07-14 ヴィシェイ デール エレクトロニクス インコーポレイテッド Coupling inductor and manufacturing method thereof
KR101314956B1 (en) 2008-05-02 2013-10-04 비쉐이 데일 일렉트로닉스, 인코포레이티드 Highly coupled inductor
JP2010192682A (en) * 2009-02-18 2010-09-02 Railway Technical Res Inst Polyphase integrated type smoothing reactor
US10446309B2 (en) 2016-04-20 2019-10-15 Vishay Dale Electronics, Llc Shielded inductor and method of manufacturing
US11615905B2 (en) 2016-04-20 2023-03-28 Vishay Dale Electronics, Llc Method of making a shielded inductor

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