JPS5844704A - Inductor for power supply line filter - Google Patents
Inductor for power supply line filterInfo
- Publication number
- JPS5844704A JPS5844704A JP14309381A JP14309381A JPS5844704A JP S5844704 A JPS5844704 A JP S5844704A JP 14309381 A JP14309381 A JP 14309381A JP 14309381 A JP14309381 A JP 14309381A JP S5844704 A JPS5844704 A JP S5844704A
- Authority
- JP
- Japan
- Prior art keywords
- inductor
- plate thickness
- amorphous
- magnetic alloy
- line filter
- 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
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims abstract 2
- 230000035699 permeability Effects 0.000 abstract description 16
- 229910001004 magnetic alloy Inorganic materials 0.000 abstract description 14
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000004907 flux Effects 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012256 powdered iron Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F17/062—Toroidal core with turns of coil around it
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F2027/348—Preventing eddy currents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、電源ラインフィルタ用インダクタに関するも
のであり、特に非晶質磁性体からなる閉磁路磁心を用い
た電源ラインフィルタ用インダクタの改良に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inductor for a power line filter, and more particularly to an improvement of an inductor for a power line filter using a closed magnetic circuit core made of an amorphous magnetic material.
コモンモートチ冒−クコイル等の電源ラインフィルタ用
インダクタの磁心としては、透磁率、飽和磁束密度とも
に大きな磁性体を用いることが望ましく、また高周波領
域において充分な減衰を得るためには透磁率の周波数特
性も良好である必要がある。しかしながら、フェライト
、硅素鋼板あるいは圧粉鉄心等管用いた従来の磁心では
、これらの条件を満足することはで亀なかった。すな動
ち、フェライト磁心は透磁率が大で周波数特性が良好で
あるため、フィルタとして高周波領域に鶴いても大暑な
減衰量を期待できるが、飽和磁束密度は小さく、このた
め振幅の大暑なパルスが入力すると磁心が飽和して減衰
量が減少してしまうＯまた、硅素鋼板磁心は、低層波領
域におけ・る透磁率及び飽和磁束密度ともに大であるが
、透磁率の周波数特性が悪く高周波領域において減衰量
を確保で自ない。また圧粉鉄心の場合に１−１飽和磁束
密度は大暑いが透磁率が小さく、透磁率の周波数特性も
悪いなどの間層があった。It is desirable to use a magnetic material with high magnetic permeability and high saturation magnetic flux density as the magnetic core of an inductor for a power line filter such as a common motor chain coil, and in order to obtain sufficient attenuation in the high frequency region, the frequency characteristics of magnetic permeability should also be adjusted. Must be in good condition. However, it has not been possible to satisfy these conditions with conventional magnetic cores using ferrite, silicon steel plates, dust cores, or other tubes. In other words, the ferrite magnetic core has high magnetic permeability and good frequency characteristics, so even when used as a filter in the high frequency range, it can be expected to have a large amount of attenuation, but the saturation magnetic flux density is small, so When a pulse is input, the magnetic core becomes saturated and the amount of attenuation decreases.In addition, silicon steel sheet magnetic cores have high magnetic permeability and high saturation magnetic flux density in the low wave region, but the frequency characteristics of magnetic permeability are poor. It is possible to ensure attenuation in the high frequency range. In the case of powdered iron cores, the 1-1 saturation magnetic flux density was very high, but the magnetic permeability was low, and the frequency characteristics of the magnetic permeability were also poor.
本発明は上記従来技術の欠点を解消すぺ（なされたもの
であり、渦電流損失が少なく、周波特性の優れた電源ラ
インフィルタ用インダクタを提供することを目的とする
ものである。The present invention has been made to eliminate the drawbacks of the above-mentioned prior art, and it is an object of the present invention to provide an inductor for a power line filter with low eddy current loss and excellent frequency characteristics.
上記目的を達成するために本発明は、板厚８〜ｇｏ、ｓ
ｍの非晶質磁性合金薄板からなる閉磁路磁心を用いて構
成したことを特徴とするものである。In order to achieve the above object, the present invention has a plate thickness of 8~go, s.
The present invention is characterized in that it is constructed using a closed magnetic circuit core made of amorphous magnetic alloy thin plate of m.
非晶質磁性体からなる閉磁警磁心を用いたもめとしては
、例えば特開昭ｊＨＩ−４６５１６号公報等により知ら
れているが、木顧発明者らは同一材質の非晶質合金薄板
を用いた場合でも板厚性状によって電源ラインフィルタ
用インダクタとしての特性が変化することを新規に見出
し該事実に基づいて本願発明を成したものである。A problem using a closed magnet core made of an amorphous magnetic material is known, for example, from Japanese Patent Application Laid-open No. Shoj HI-46516, but the inventors of Mokoku et al. We have newly discovered that the characteristics of an inductor for a power line filter change depending on the thickness and properties of the inductor, even when the inductor is used, and based on this fact, we have accomplished the present invention.
以下本発明を実施例に基づ自詳細に説明する０第１図は
、非晶質磁性合金薄板を用いた電源ラインフィルタ用イ
ンダクタの一例を示すものであり、１′）の巻線全盲す
るチロ−クコイルの概略構成図である。図において、磁
心１１は非晶質磁性合金薄板を巻回して重ね合わせト四
イダル形状としたものであり、該磁心１１の周囲に春１
！ｉｌｌを巻装しチロ−クコイル１０をＩｌ成しである
。The present invention will be described below in detail based on examples.0 Figure 1 shows an example of an inductor for a power line filter using an amorphous magnetic alloy thin plate. It is a schematic block diagram of a Chirok coil. In the figure, the magnetic core 11 is formed by winding amorphous magnetic alloy thin plates and superimposing them into a four-dimensional shape, and a spring 1 is arranged around the magnetic core 11.
! The coil 10 is wound with an Ill and the Chirok coil 10 is without an Il.
第２図は第１図に示した構造のチロ−クコイル１０にお
けるＩＭＨｍの透磁率の非晶質磁性合金薄板の板厚依存
性を示す図である。また、第３図は透磁率の周波数依存
性を示す図であり、図においてムは板厚１１ｐｍ、Ｂは
板厚ＬＯ１１ｖｈ、 Ｏは板厚３０μ墓、１は板厚４０
μｍの非晶質磁性合金薄板の場合をそれぞれ示し、１は
フェライトの場合を示す。この図から非−品質磁性合金
薄板の板厚を薄くすると透磁率か上昇すること、１ＭＨ
ｇ以上の高い周波数で７エライ）を凌ぐ透磁率を示すこ
とが明らかであり、特に板厚ｊ！Ｏ，＃、ｍ以下のもの
の透磁率は極めて優れていることが判る。FIG. 2 is a diagram showing the dependence of the magnetic permeability of IMHm on the thickness of the amorphous magnetic alloy thin plate in the Chirok coil 10 having the structure shown in FIG. In addition, Fig. 3 is a diagram showing the frequency dependence of magnetic permeability. In the figure, MU is a plate thickness of 11 pm, B is a plate thickness of LO11vh, O is a plate thickness of 30 μm, and 1 is a plate thickness of 40 μm.
The case of an amorphous magnetic alloy thin plate of μm is shown, and 1 shows the case of ferrite. From this figure, it can be seen that when the thickness of the non-quality magnetic alloy thin plate is reduced, the magnetic permeability increases, 1MH
It is clear that it exhibits a magnetic permeability that exceeds 7 elai) at high frequencies above g, especially when the plate thickness is j! It can be seen that the magnetic permeability of O, #, m or less is extremely excellent.
第１図は、第１図に示したＩＩＮＩのチロ−クコイルの
ノイズ減衰量の周波数依存性を示した図である。図にお
いてムｌｌ０Ｉ）ｌはそれぞれ第３図と同様ｉムは８ハ
、１は２Ｃｉμｒｍ、 ＯはＳＯμ墓、フは４０声−の
板厚の非晶質磁性合金薄板を用いた場合、１はフェライ
トを用いた場合の特性曲線管示す。図から明らかな如（
、＄０．Ｉ１１以下の板厚の非晶質磁性合金薄板を用い
た本発明電源ラインフイ〃り用インダクタは７エライト
を用いたものよりも優れた高周波特性を示すことが明ら
かである。FIG. 1 is a diagram showing the frequency dependence of the noise attenuation amount of the IINI Chirok coil shown in FIG. 1. In the figure, when using an amorphous magnetic alloy thin plate with a thickness of 8cm, 1 is 2Ciμrm, O is SOμm, and f is 40cm, as in Figure 3, 1 is the same as in Figure 3. The characteristic curve tube when using ferrite is shown. As is clear from the figure (
, $0. It is clear that the power line inductor of the present invention using an amorphous magnetic alloy thin plate having a thickness of I11 or less exhibits superior high frequency characteristics to that using 7-elite.
以上詳述した如く、板厚８μ！ａ Ｍ／ ３０％ｍの非
晶質磁性合金薄板を用いた本発明電源ラインフィルタ用
インダクタは渦電流損失が少なく、かつ周波数特性に優
れており、しかも飽和磁束密度も６０００ Ｇ以上であ
り、従来のものに比べて格段の特性を有する工業上有用
なものである。As detailed above, the plate thickness is 8μ! The inductor for power line filters of the present invention, which uses amorphous magnetic alloy thin plates of a M/30% m, has low eddy current loss and excellent frequency characteristics, and has a saturation magnetic flux density of 6000 G or more, which is superior to conventional It is industrially useful and has much superior properties compared to other materials.
第１図は本発明に係る電源ラインフィルタ用インダクタ
の一例を示す概略構成図、第ε図はＩＭ！馬の透磁率の
非晶質磁性合金薄板の板厚依存性管示す曲線図、第３図
は透磁率の周波数依存性を示す曲線図、第４図はノイズ
減衰量の周波数依存性を示す曲線図である。
ＩＯ：チロ−クコイル、１１ｇ１心、１８：ｌ線略１図
／？
第２図
厚さく、ａｍ）FIG. 1 is a schematic configuration diagram showing an example of an inductor for a power line filter according to the present invention, and FIG. ε is an IM! A curve diagram showing the dependence of magnetic permeability on the thickness of an amorphous magnetic alloy thin plate. Figure 3 is a curve diagram showing the frequency dependence of magnetic permeability. Figure 4 is a curve diagram showing the frequency dependence of noise attenuation. It is a diagram. IO: Chirok coil, 11g 1 core, 18:l line 1 diagram/? Figure 2 Thickness, am)
Claims (1)
有することを特徴とする電源ラインフィルタ用インダク
タ。Plate thickness 8-30. An inductor for a power line filter, characterized by having a magnetic core using a thin amorphous alloy of sin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14309381A JPS5844704A (en) | 1981-09-10 | 1981-09-10 | Inductor for power supply line filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14309381A JPS5844704A (en) | 1981-09-10 | 1981-09-10 | Inductor for power supply line filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5844704A true JPS5844704A (en) | 1983-03-15 |
Family
ID=15330744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14309381A Pending JPS5844704A (en) | 1981-09-10 | 1981-09-10 | Inductor for power supply line filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5844704A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6076009U (en) * | 1983-10-18 | 1985-05-28 | 株式会社トーキン | Choke coil for noise filter |
| US5850336A (en) * | 1996-04-19 | 1998-12-15 | Hitachi Metals, Ltd. | Apparatus having an inverter |
| EP1065680A2 (en) * | 1999-06-30 | 2001-01-03 | Kabushiki Kaisha Toshiba | Inductance element and manufacturing method thereof, and snubber using thereof |
-
1981
- 1981-09-10 JP JP14309381A patent/JPS5844704A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6076009U (en) * | 1983-10-18 | 1985-05-28 | 株式会社トーキン | Choke coil for noise filter |
| JPH0442887Y2 (en) * | 1983-10-18 | 1992-10-12 | ||
| US5850336A (en) * | 1996-04-19 | 1998-12-15 | Hitachi Metals, Ltd. | Apparatus having an inverter |
| EP1065680A2 (en) * | 1999-06-30 | 2001-01-03 | Kabushiki Kaisha Toshiba | Inductance element and manufacturing method thereof, and snubber using thereof |
| EP1065680A3 (en) * | 1999-06-30 | 2002-03-06 | Kabushiki Kaisha Toshiba | Inductance element and manufacturing method thereof, and snubber using thereof |
| US6480084B1 (en) | 1999-06-30 | 2002-11-12 | Kabushiki Kaisha Toshiba | Inductance element and manufacturing method thereof, and snubber using thereof |
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