JPS59181508A - Manufacture of noise filter core - Google Patents
Manufacture of noise filter coreInfo
- Publication number
- JPS59181508A JPS59181508A JP5376183A JP5376183A JPS59181508A JP S59181508 A JPS59181508 A JP S59181508A JP 5376183 A JP5376183 A JP 5376183A JP 5376183 A JP5376183 A JP 5376183A JP S59181508 A JPS59181508 A JP S59181508A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic core
- high permeability
- permeability
- alloy
- 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
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15383—Applying coatings thereon
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は磁歪が正で高透磁率を有する磁性合金薄帯を用
いて、ノイズフィルターを構成するインダクターの磁心
と（〜て、有効な高透磁率で且つ透４み率の周波数特性
の優れたノイズフィルター用磁心の製造方法に関する。Detailed Description of the Invention [Technical Field of the Invention] The present invention uses a magnetic alloy ribbon having positive magnetostriction and high magnetic permeability to form a magnetic core of an inductor constituting a noise filter (... The present invention relates to a method of manufacturing a magnetic core for a noise filter having excellent magnetic properties and frequency characteristics of permeability.
従来ノイズフィルター全構成するインダクターの磁心と
しては通常フェライトが用いられ、ている。Ferrite is usually used as the magnetic core of the inductor that makes up all conventional noise filters.
しかしながら最近電子機器の小型化に伴ない、ノイズフ
ィルターも小型化が要求されている。従って、それに用
いられるインダクター用磁心としては高透磁率でかつ透
磁率の周波数特性が良いものを、必要とする。However, as electronic devices have recently become smaller, noise filters have also been required to be smaller. Therefore, the inductor magnetic core used therein is required to have high magnetic permeability and good frequency characteristics of magnetic permeability.
ところがフェライトは透ｆＢ、率の周波数特性において
に１′ｆｋね、た性能を示すが、飽和磁束密度が高々５
ＫＧと低く、実効透磁率も高々５ｏｏｏと小さいため、
この要求を満たすことは出来ない。However, although ferrite exhibits performance of 1'fk in terms of frequency characteristics, the saturation magnetic flux density is at most 5.
KG, and the effective magnetic permeability is as low as 5ooo, so
This requirement cannot be met.
一方、低周波領域において犬きガ透磁率を示す厚さ１０
μｍ程度以上の合金薄帯は一般に高周波領域Ｖこオ？い
て透磁率は低下Ｉ７、この１壕でｌ′ｉたとえ低周波領
域Ｖこ赴ける透磁率がフェライトよりも大きくともその
周波数特性はフェライトよりも劣り、高周波領域では透
磁率はフェライトよりも小さくなる。On the other hand, a thickness of 10 mm exhibits magnetic permeability in the low frequency region.
Alloy ribbons with a diameter of about μm or more are generally used in high frequency ranges. The magnetic permeability decreases I7, and even if the magnetic permeability in the low frequency region V is greater than that of ferrite, its frequency characteristics are inferior to that of ferrite, and in the high frequency region the magnetic permeability becomes smaller than that of ferrite. .
〔発明σ〕目的〕
本発明は磁歪が正なる高透磁率合金薄帯より成る磁心の
透磁率の周波数特性を改良する方法に関するもので、ノ
イズフィルターのインダクター用磁心に用いて有効な磁
心の製造方法全提供することを目的とする。[Invention σ] Purpose] The present invention relates to a method for improving the frequency characteristics of magnetic permeability of a magnetic core made of a high magnetic permeability alloy ribbon with positive magnetostriction, and the present invention relates to a method for manufacturing a magnetic core that is effective for use as a magnetic core for an inductor of a noise filter. The aim is to provide a complete method.
本発明の磁心の製造方法は磁歪が正なる高透磁率磁性合
金薄帯から成る磁心の表面の少なくとも一部分牙樹脂で
被覆することによって透磁率の周波数特性を改善［〜、
高透磁率でかつ透磁率の周波数特性の良い磁心を得るこ
とを特徴とするも／／）である。The method for manufacturing a magnetic core of the present invention improves the frequency characteristics of magnetic permeability by coating at least a portion of the surface of the magnetic core made of a high magnetic permeability magnetic alloy ribbon with positive magnetostriction with a toothed resin.
It is characterized by obtaining a magnetic core with high magnetic permeability and good frequency characteristics of magnetic permeability.
つ１り本発明は磁歪が正である高透磁率磁性合金薄帯を
積層、巻回して斤る磁心を製造する際に、薄帯間に樹脂
が含浸する事なく、磁心表面に樹脂被覆を設ける事によ
り、高透磁率で、かつ透磁率の周波数特性の良い磁心が
得られるというものである。In this invention, when producing a magnetic core by laminating and winding high permeability magnetic alloy ribbons with positive magnetostriction, the resin coating is applied to the surface of the magnetic core without resin impregnating between the ribbons. By providing this, a magnetic core with high magnetic permeability and good frequency characteristics of magnetic permeability can be obtained.
なお本発明に用いる高透磁率磁性合金は磁歪が正のもの
であればＬく、実用−）：Ｆｅ、Ｃｏ、Ｎｉの少なくと
も１種と、Ｓ ｉ、 Ｂ、 Ｐ、 Ｃ，Ｇｅ、 Ａｌの
少なくとも１種とからかり、又必要に応じ上記Ｆｅ。The high permeability magnetic alloy used in the present invention has positive magnetostriction, and is suitable for practical use: at least one of Fe, Co, and Ni, and Si, B, P, C, Ge, and Al. At least one kind, and if necessary, the above-mentioned Fe.
Ｃｏ、Ｎｉの一部を、Ｎｂ、 Ｃｒ、 Ｍｏ、 Ｔａ、
Ｗ、 Ｖ、Ｔｉ。Co, part of Ni, Nb, Cr, Mo, Ta,
W, V, Ti.
Ｚｒ、Ｈｆ等で置換した非晶質合金を用いる事ができる
。An amorphous alloy substituted with Zr, Hf, etc. can be used.
また磁心全被覆する樹脂は、積層の層間に含浸しないも
ので＞ｈばよく、実用上エポキシ系の速硬化型接着剤音
用いる事が好捷しい。なお、丁、ボキシ系以外でも粘性
等全適宜選択する事により１史ｊＴ］できＺ）ｐｌＴ
ｉ、ｊ： ｊ才つ４でもｊｌい。Further, the resin that completely covers the magnetic core should be >h as long as it does not impregnate between the laminated layers, and it is practically preferable to use an epoxy-based fast-curing adhesive. In addition, it is possible to make one history by selecting all the viscosity etc. as appropriate except for the chlorine and boxy type.
i, j: J years old and 4 years old.
例えし１゛イＩｌｌ 、！≦プバｔ Ｄ Ｘ ＋ （１
１％１度の高透ば（率磁性合金薄帝より成るトロイダル
磁心の表面を、エポキシ樹１１ｉ’（で彼葆−すると低
周波領域例えばｌＫＨ２におＩｒｊる実効啓磁率銖１１
〜２割稈壌：低下するが、高周波鎮（社）：例マばＩＭ
Ｈ２に訃ける実効透磁率は１，５・〜２倍程度へ一増加
し、その結果実効透磁率の周波数特＋′１は改善される
。磁歪が正で絶交ｉ値が太きければこの効県←ｒ大きい
、打抜いｆｃ、 ？Ｗ片全全積層せて作製しりＣＲ心に
ついても効果は同じである。For example, Ill! ≦Pubat D X + (1
When the surface of a toroidal core made of a magnetic alloy with a high permeability of 1%1 degree is coated with an epoxy tree 11i', the effective magnetic rate is 11 in the low frequency region, for example, lKH2.
~20% culm soil: Decreases, but Koshuhachin (company): For example, IM
The effective magnetic permeability of H2 increases by about 1.5 to 2 times, and as a result, the frequency characteristic of the effective magnetic permeability +'1 is improved. If the magnetostriction is positive and the absolute i value is large, this effect is large, punching fc, ? The same effect is obtained for the bottom CR core produced by laminating all the W pieces.
一方結晶構造を＋？ ｆｒない非晶質磁性合金は高透磁
率、低保磁力など優ノ１．た軟磁気特性を示すので最近
注目を集めているが、一般に非晶質磁性合金を用いて作
製したトロイダル磁心は適当な歪取り熱処理によって低
周波領域の実効透磁率が大きな値を示すものが得られる
。On the other hand, is the crystal structure +? FR-free amorphous magnetic alloys have superior properties such as high magnetic permeability and low coercive force. Although toroidal magnetic cores made from amorphous magnetic alloys have recently attracted attention due to their soft magnetic properties, it is generally possible to obtain large effective magnetic permeability values in the low frequency region through appropriate strain relief heat treatment. It will be done.
寸だノイズフィルターの小形化に伴ない、それに用いる
インダクターの磁心の飽和磁束密度は大きい方が良く、
従って磁歪が正なるＦｅ系非晶質合金Ｖｉ飽和磁束密度
が大きく、高透磁率全治するので、この製造方法が有効
に適用さ′１する１、〔発明の実施例〕
隊ロール法により作製しｆＣ幅１０ｍｍ 厚を約２０
ｐｍの（ＦｅＯ，９５Ｎｂ（１，０５）８２Ｓｉ４Ｂ］
４比晶Ｗ（合金リボン（飽和磁歪−２０Ｘ１０ Ｊ’
；７用いて内径２０ｍｍ５外径３０ｍｍのトロイダル磁
心ケ作製Ｅ〜、特定の歪取り熱処理を施した後、磁心の
表面をエポキシ系速硬化型接着剤にて被覆［７て磁心を
イ４１ｆｒ、。As noise filters become smaller, the saturation magnetic flux density of the magnetic core of the inductor used in them should be larger.
Therefore, since the Fe-based amorphous alloy Vi with positive magnetostriction has a large saturation magnetic flux density and a high magnetic permeability, this manufacturing method can be effectively applied. fC width 10mm thickness approx. 20mm
pm(FeO,95Nb(1,05)82Si4B)
4 ratio crystal W (alloy ribbon (saturated magnetostriction -20X10 J'
; Fabrication of a toroidal magnetic core with an inner diameter of 20 mm and an outer diameter of 30 mm using 7. After performing a specific strain relief heat treatment, the surface of the magnetic core was coated with an epoxy fast-curing adhesive.
表面被覆＠（曲線ａ）後（曲線ｂ）の実効透磁率の周波
数特性全第１図に示す。参考のため歪１７り熱処理後エ
ポキシ樹脂を層間に含浸させた場合（曲線Ｃ）の特性も
合わせて示す。The frequency characteristics of the effective magnetic permeability after surface coating (curve a) (curve b) are all shown in FIG. For reference, the characteristics when the epoxy resin is impregnated between the layers after heat treatment at 17 degrees of strain (curve C) are also shown.
これより磁心の表面を被覆すると実効透磁率の周波数祈
性は改善されることが分る。なお、エポキシ樹脂を層間
に含浸させると全周波数領域に亘って透磁率は低下する
。This shows that coating the surface of the magnetic core improves the frequency dependence of the effective magnetic permeability. Note that when the epoxy resin is impregnated between the layers, the magnetic permeability decreases over the entire frequency range.
第１図は本発明方法を用いた場合の実効透磁率の周波数
特性Figure 1 shows the frequency characteristics of effective permeability when using the method of the present invention.
Claims (4)
心の表面の少なくとも一部分を樹脂で被覆したことを特
徴とするノイズフィルター用磁心の製造方法。(1) A method for producing a magnetic core for a noise filter, characterized in that at least a portion of the surface of the magnetic core made of a high permeability magnetic alloy ribbon with positive magnetostriction is coated with a resin.
ダル状であること’に％徴とするノイズフィルター用磁
心の製造方法(2) A method for manufacturing a magnetic core for a noise filter in which the shape of the magnetic core is toroidal in claim 1.
Ｆｅ、Ｃｏ、Ｎｉから選ばれる少なくとも１種の元素と
、 Ｓｉ、 Ｂ、 Ｐ、 Ｃ，Ｇｅ、、ＡＩから選ばれ
る少なくとも１種の元素とから成る非晶質高透磁率合金
であることに％徴とするノイズフィルター用磁心の製造
方法。(3) In claim 1, the high permeability magnetic alloy comprises at least one element selected from Fe, Co, and Ni, and at least one element selected from Si, B, P, C, Ge, and AI. A method for manufacturing a magnetic core for a noise filter, which is characterized by being an amorphous high permeability alloy consisting of the following elements.
としてＦｅ、Ｃｏ、Ｎｉのうちの少なくとも１種の元素
の１部’１＝Ｎｂ、 Ｃｒ、 Ｍｏ、 Ｔａ、Ｗ、 Ｖ
、 Ｔｉ、 ＺｒＨｆの群から選ばれる少なくとも１種
の元素によって置換Ｉ〜て得られる非晶質高透磁率合金
を用いたこと’（ｒ ７′Ｆ！ｉ徴とするノイズフィル
ター用磁心の製造方法。(4) In claim 3, the high permeability magnetic alloy is one part of at least one element selected from Fe, Co, and Ni=Nb, Cr, Mo, Ta, W, V
A method for manufacturing a magnetic core for a noise filter using an amorphous high permeability alloy obtained by substitution with at least one element selected from the group consisting of , Ti, and ZrHf. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5376183A JPS59181508A (en) | 1983-03-31 | 1983-03-31 | Manufacture of noise filter core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5376183A JPS59181508A (en) | 1983-03-31 | 1983-03-31 | Manufacture of noise filter core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59181508A true JPS59181508A (en) | 1984-10-16 |
Family
ID=12951797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5376183A Pending JPS59181508A (en) | 1983-03-31 | 1983-03-31 | Manufacture of noise filter core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59181508A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS624310A (en) * | 1985-06-29 | 1987-01-10 | Toshiba Corp | Noise filter |
| CN100367421C (en) * | 2004-12-14 | 2008-02-06 | 王�锋 | Method for manufacturing soft magnet silicon-aluminium magnetic powder core |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50112798A (en) * | 1974-02-18 | 1975-09-04 | ||
| JPS5646516A (en) * | 1979-09-21 | 1981-04-27 | Tdk Corp | Inductor for power supply line filter |
| JPS5724519A (en) * | 1980-07-21 | 1982-02-09 | Tdk Corp | Coil core for power line filter |
| JPS5792808A (en) * | 1980-11-29 | 1982-06-09 | Tdk Corp | Manufacture of amorphous magnetic alloy thin-plate cut core |
| JPS58106811A (en) * | 1981-12-18 | 1983-06-25 | Hitachi Metals Ltd | Magnetic core |
| JPS59139607A (en) * | 1983-01-29 | 1984-08-10 | Hitachi Metals Ltd | Inductor core |
-
1983
- 1983-03-31 JP JP5376183A patent/JPS59181508A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50112798A (en) * | 1974-02-18 | 1975-09-04 | ||
| JPS5646516A (en) * | 1979-09-21 | 1981-04-27 | Tdk Corp | Inductor for power supply line filter |
| JPS5724519A (en) * | 1980-07-21 | 1982-02-09 | Tdk Corp | Coil core for power line filter |
| JPS5792808A (en) * | 1980-11-29 | 1982-06-09 | Tdk Corp | Manufacture of amorphous magnetic alloy thin-plate cut core |
| JPS58106811A (en) * | 1981-12-18 | 1983-06-25 | Hitachi Metals Ltd | Magnetic core |
| JPS59139607A (en) * | 1983-01-29 | 1984-08-10 | Hitachi Metals Ltd | Inductor core |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS624310A (en) * | 1985-06-29 | 1987-01-10 | Toshiba Corp | Noise filter |
| CN100367421C (en) * | 2004-12-14 | 2008-02-06 | 王�锋 | Method for manufacturing soft magnet silicon-aluminium magnetic powder core |
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