JPS59182514A - Magnetic core for choke coil - Google Patents
Magnetic core for choke coilInfo
- Publication number
- JPS59182514A JPS59182514A JP5667583A JP5667583A JPS59182514A JP S59182514 A JPS59182514 A JP S59182514A JP 5667583 A JP5667583 A JP 5667583A JP 5667583 A JP5667583 A JP 5667583A JP S59182514 A JPS59182514 A JP S59182514A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- choke coil
- gap
- core
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
Abstract
Description
【発明の詳細な説明】
本発明はスイッチングレギュレータ等の電子機器回路に
おいて、平滑用どしで用いられるチョークコイルに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a choke coil used for smoothing in electronic device circuits such as switching regulators.
一般にスイッチングレギュレータ等に用いられる平滑用
チョークコイルは直流電流が交流に重畳されて流れてお
り、そのためチョークコイルに使用されている鉄心は磁
気飽和を防ぐため磁気回路にギャップ、すなわち空隙部
が設けられている。Smoothing choke coils, which are generally used in switching regulators, flow direct current superimposed on alternating current, so the iron core used in choke coils has a gap, or air gap, in the magnetic circuit to prevent magnetic saturation. ing.
しかし、従来のチョークコイルの鉄心のギャップは単な
る空隙のみかあるいは非磁性体のギ１１ノブ板を挿入す
るのみの構成であった。ぞのため、従来の鉄心を有する
コイルでは重畳される直流電流に対してコイルのインダ
クタンスの値の変化量は小さいという問題がある。しか
るに、スイッチングレギュレータの平滑コイルとしての
特性値は重畳された直流電流が小さくなった時にはチョ
ークコイルのインダクタンス値が大きくなった方がダミ
ーロードを減らす上からも良く、そのような特性を有づ
ることが要望されている。イこて本発明は上記の欠点を
改善し、直流重畳電流が小である場合にはインダクタン
スの大きいチョークコイルを提供しようとするものであ
る。However, the gap in the iron core of a conventional choke coil is a mere air gap or a non-magnetic gear knob plate is inserted thereinto. Therefore, in a conventional coil having an iron core, there is a problem in that the amount of change in the value of the inductance of the coil is small with respect to the superimposed direct current. However, when the superimposed DC current becomes small, it is better to increase the inductance value of the choke coil as a smoothing coil of the switching regulator in order to reduce the dummy load. is requested. The present invention aims to improve the above-mentioned drawbacks and provide a choke coil that has a large inductance when the DC superimposed current is small.
（なわち、一部にギ１７ツプを有す”る磁心と、ギトツ
プのない磁心を重ね合せることにより構成されたチョー
クコイルは、直流重畳電流が小なる場合は磁心に生ずる
磁束は主どしてギＩｌツブのない磁心を通るためチョー
クコイルとしてのインダクタンスは大きい。また直流重
畳電流が人なる場合は、ギ１１ツブのない磁心は飽和し
、磁束は次第にギ１１ツブを右りる磁心に流れるように
なるために、チョークコイルとしてのインダクタンスは
通常の設定値を満足するような特性を持たずことができ
る。(In other words, in a choke coil that is constructed by overlapping a magnetic core with a gap in a part and a magnetic core without a gap, when the DC superimposed current is small, the magnetic flux generated in the magnetic core is mainly The inductance as a choke coil is large because it passes through the magnetic core without the gear 11 knob.Also, when the DC superimposed current is large, the magnetic core without the gear 11 knob becomes saturated, and the magnetic flux gradually passes through the magnetic core that has the gear 11 knob. Therefore, the inductance as a choke coil may not have a characteristic that satisfies the normal set value.
特に本発明によれは、１つのチョークコイルを構成する
２つの磁心の各々の材質を適切に選ぶことにより、また
各々の磁心の形状、ギトツブ長等を適切に設けることに
より、幅広いＬ字型特性をもったチョークコイルを作製
することができる。In particular, according to the present invention, by appropriately selecting the material of each of the two magnetic cores constituting one choke coil, and by appropriately providing the shape and length of each magnetic core, a wide range of L-shaped characteristics can be achieved. It is possible to create a choke coil with
特に高透磁率を有するＣｏ基非晶買合金をギトツブを有
しないコアに用いた場合には、低電流例で高いインダク
タンスを得ることが可能であり、また、高磁束密度、高
透磁率を有するＦｅ基非晶質合金をギャップを有するコ
アに用いた場合には高電流で飽和しにくく、かつインダ
クタンスの大きなチョークとすることができる。In particular, when a Co-based amorphous alloy with high magnetic permeability is used for a core without a groove, it is possible to obtain high inductance at low currents, and it also has high magnetic flux density and high magnetic permeability. When an Fe-based amorphous alloy is used for the core having a gap, it is possible to obtain a choke that is difficult to saturate with high current and has a large inductance.
以下本発明を実施例に基づき詳細に説明する。 。The present invention will be described in detail below based on examples. .
第１図は本発明によるチョークコイル用磁心の２−３の
例を概念図により示す、第１図（Ａ）・〜（Ｃ）のよう
にギ１１ツブを設【ブた磁心とギ１７ツプの無い磁心と
の組み合せが考えられるが本発明はこれら３種の組み合
せに限られるものではない。FIG. 1 is a conceptual diagram showing an example of magnetic core 2-3 for choke coil according to the present invention. Although a combination with a magnetic core without a core is possible, the present invention is not limited to these three types of combinations.
第２図は（イ）の構造をもっ磁心を用いてチョークコイ
ルを設計した場合の直流重畳特性を示１゛。Figure 2 shows the DC superposition characteristics when a choke coil is designed using a magnetic core having the structure shown in (A).
チョークコイルの設計値は低格直流重畳電流１５Ａ。The design value of the choke coil is a low-rated DC superimposed current of 15A.
インククタンス値１００μト１であり、第２図中（イ）
曲線は本発明によるチョークコイルでギｖ７ツブを有し
ない磁心にＣＯ基非晶貿合金をギＩ７ツプを右する磁心
にＦｅ基非晶質合金を用いたＬ字ヂヨ−りを（ロ）曲線
は各々にパーマロイを用いた場合を（ハ）曲線は従来の
チョークの特性を示す。図かられかるように本発明のう
ちでも特に飽和磁束密度が犬さく、透磁宰の大きな非晶
質合金は特にこの種のチョークコイル用として右利な材
料である。The inktance value is 100μt1, and (a) in Figure 2
The curve shows a choke coil according to the present invention, in which a CO-based amorphous alloy is used for the magnetic core without a gear V7 knob and an Fe-based amorphous alloy is used for the magnetic core that has a gear I7. ) The curves show the case when permalloy is used in each case, and (c) the curve shows the characteristics of conventional chokes. As can be seen from the figure, among the materials of the present invention, an amorphous alloy having a particularly high saturation magnetic flux density and high magnetic permeability is a particularly advantageous material for this type of choke coil.
以上説明したように本発明の工業上の効果は極めて大で
ある。As explained above, the industrial effects of the present invention are extremely large.
第１図は本発明によるチョークコイル用磁心の構造を示
し、第２図はチョークコイルの直流重畳特性を示づ。
１：ギャップを設（プた磁心 ２：ギトツブ３：ギャッ
プのない磁心
（イ）（［］）：木本発品 （ハ）従来品第１回
とンノノ
（Ｃ）FIG. 1 shows the structure of a magnetic core for a choke coil according to the present invention, and FIG. 2 shows the DC superposition characteristics of the choke coil. 1: Magnetic core with gap 2: Gap 3: Magnetic core without gap (A) ([]): Kimoto's product (C) Conventional product 1st and Nnonono (C)
Claims (1)
心を重ね合せることにより構成されたことを特徴と覆る
チョークコイル用磁心。 ２、磁心として非晶質合金、パーマロ仁ケイ歯鋼板、ソ
フ１へフエライ１〜の少なくとも一種を用いたことを特
徴とする特許請求の範囲第１項記載のチョークコイル用
磁心。 ３、ギＶツブを有する磁心かキャップを有しない磁心の
いずれか１つ以上に非晶質合金を用いたことを特徴とす
る特許請求の範囲第１項、第２項記載のチョークコイル
用磁心。 ４、ギＡ・ツブを右しない磁心にＣＯ基非晶質合金を用
いたことを特徴とする特許請求の範囲第１項。 第２項、第３項記載のチョークコイル用磁心。 ５、ギャップを有りる磁心にＦｅ基非晶買合金を用いた
ことを特徴とする特許請求の範囲第１項。 第２項、第３項、第４項記載のチョークコイル用磁心。[Scope of Claims] 1. A magnetic core for a choke coil, characterized in that it is constructed by overlapping a magnetic core with a stop in the ~ section and a magnetic core without a stop. 2. The magnetic core for a choke coil according to claim 1, characterized in that at least one of the following is used as the magnetic core: an amorphous alloy, a permallon silicon tooth steel plate, and a soft ferrite 1. 3. The magnetic core for a choke coil according to claim 1 or 2, characterized in that an amorphous alloy is used for at least one of the magnetic core having a V-shaped portion and the magnetic core having no cap. . 4. Claim 1, characterized in that a CO-based amorphous alloy is used for the magnetic core that does not control the gear A/tube. The magnetic core for a choke coil according to items 2 and 3. 5. Claim 1, characterized in that the magnetic core with a gap is made of an Fe-based amorphous alloy. The magnetic core for a choke coil as described in Items 2, 3, and 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5667583A JPS59182514A (en) | 1983-03-31 | 1983-03-31 | Magnetic core for choke coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5667583A JPS59182514A (en) | 1983-03-31 | 1983-03-31 | Magnetic core for choke coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59182514A true JPS59182514A (en) | 1984-10-17 |
Family
ID=13033992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5667583A Pending JPS59182514A (en) | 1983-03-31 | 1983-03-31 | Magnetic core for choke coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59182514A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02503251A (en) * | 1988-02-11 | 1990-10-04 | リーディ―ヨクス，ズザンネ | choke coil |
| EP0579962A1 (en) * | 1992-06-22 | 1994-01-26 | Matsushita Electric Industrial Co., Ltd. | Choke coil |
| WO2003079379A1 (en) * | 2002-03-19 | 2003-09-25 | Daifuku Co., Ltd. | Composite core nonlinear reactor and induction power receiving circuit |
| JP2005093830A (en) * | 2003-09-19 | 2005-04-07 | Daifuku Co Ltd | Composite core reactor and inductive power receiving connection |
-
1983
- 1983-03-31 JP JP5667583A patent/JPS59182514A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02503251A (en) * | 1988-02-11 | 1990-10-04 | リーディ―ヨクス，ズザンネ | choke coil |
| EP0579962A1 (en) * | 1992-06-22 | 1994-01-26 | Matsushita Electric Industrial Co., Ltd. | Choke coil |
| US5525951A (en) * | 1992-06-22 | 1996-06-11 | Matsushita Electric Industrial Co., Ltd. | Choke coil |
| WO2003079379A1 (en) * | 2002-03-19 | 2003-09-25 | Daifuku Co., Ltd. | Composite core nonlinear reactor and induction power receiving circuit |
| US7265648B2 (en) | 2002-03-19 | 2007-09-04 | Daifuku Co., Ltd. | Composite core nonlinear reactor and induction power receiving circuit |
| JP2005093830A (en) * | 2003-09-19 | 2005-04-07 | Daifuku Co Ltd | Composite core reactor and inductive power receiving connection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4488136A (en) | Combination transformer with common core portions | |
| US4009460A (en) | Inductor | |
| JPH08115831A (en) | Common-mode chock coil | |
| KR890002910A (en) | Magnetic core and its manufacturing method | |
| US4199744A (en) | Magnetic core with magnetic ribbon in gap thereof | |
| JP2563097B2 (en) | Magnetic core material for earth leakage circuit breaker composed of microcrystalline iron-based alloy | |
| US4088942A (en) | Ferroresonant transformer structure | |
| JP2020523775A (en) | Storage Choke | |
| JPS6015908A (en) | Magnetic core | |
| JPH05217761A (en) | Magnetic core with gap and inductance element | |
| GB658355A (en) | Improvements in and relating to magnetic cores | |
| JPS59182514A (en) | Magnetic core for choke coil | |
| JPH08181024A (en) | Choke coil for suppressing harmonic current | |
| JPH05283251A (en) | Pot type inductor | |
| JPH0547572A (en) | Common mode choke coil and switching power supply device | |
| JPH03215911A (en) | Variable inductor | |
| JPS6119098B2 (en) | ||
| JPS5934608A (en) | Core for small sized reactor | |
| JPS5776811A (en) | Composite core for transformer | |
| JPS6043650B2 (en) | Choke coil for switching regulators | |
| JPS6010606A (en) | Magnetic core for power source line filter | |
| JPH03198312A (en) | Iron core for swinging choke coil and its manufacture | |
| JPH0316205A (en) | Variable inductor | |
| JPS60152012A (en) | Transformer | |
| JPH05291020A (en) | Composite toroidal core for noise filter |