JPH03278503A - Bobbin for magnetic core device, and magnetic core device and manufacture thereof - Google Patents
Bobbin for magnetic core device, and magnetic core device and manufacture thereofInfo
- Publication number
- JPH03278503A JPH03278503A JP2079351A JP7935190A JPH03278503A JP H03278503 A JPH03278503 A JP H03278503A JP 2079351 A JP2079351 A JP 2079351A JP 7935190 A JP7935190 A JP 7935190A JP H03278503 A JPH03278503 A JP H03278503A
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- magnetic core
- magnetic
- core device
- members
- 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
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Landscapes
- Insulating Of Coils (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、粒子加速器やエキシマレーザ用等の磁気スイ
ッチ、パルス圧縮装置、スイッチングレギュレータ等の
可飽和リアクタ、パルストランス等に用いられるレース
トラック形状等の非円形形状の閉磁路を有するコアのボ
ビンと、それを用いた磁心装置と、その製造方法とに関
する。[Detailed Description of the Invention] <Industrial Application Field> The present invention is applicable to magnetic switches for particle accelerators and excimer lasers, pulse compression devices, saturable reactors such as switching regulators, pulse transformers, etc. The present invention relates to a core bobbin having a non-circular closed magnetic path, a magnetic core device using the bobbin, and a manufacturing method thereof.
〈従来の技術〉
従来、粒子加速器やエキシマレーザ用等の磁気スイッチ
、パルス圧縮装置、スイッチングレギュレータなどに用
いられる可飽和リアクタ、パルストランス等の磁心装置
として、非円形形状の連続閉磁路を有するコアにボビン
を装着した磁心装置が用いられている。<Conventional technology> Conventionally, cores with a non-circular continuous closed magnetic path have been used as magnetic core devices such as saturable reactors and pulse transformers used in magnetic switches for particle accelerators and excimer lasers, pulse compression devices, switching regulators, etc. A magnetic core device equipped with a bobbin is used.
第13図と第14図には、非円形形状の閉磁路を有する
磁心装置の1例として、外形輪郭に直線部を有する長円
リング形状、すなわちレーストラック形状のコアを有す
る磁心装置1が示される。FIGS. 13 and 14 show a magnetic core device 1 having a core in the shape of an elliptical ring, that is, a racetrack shape, with a linear portion on the outer contour, as an example of a magnetic core device having a non-circular closed magnetic path. It will be done.
第14図に示される磁心装置Iは、ボビン3に巻線を巻
回する貫通孔がなく、金属製のボビン3が巻線をも兼ね
る1ターンタイプである。The magnetic core device I shown in FIG. 14 is a one-turn type in which the bobbin 3 does not have a through hole for winding the winding wire, and the metal bobbin 3 also serves as the winding wire.
このタイプは、構造上十分なボビン強度が得られるが、
巻回巻線を施すことができない。This type provides sufficient bobbin strength structurally, but
It is not possible to apply winding.
一方、第13図に示される磁心装置1は、ボビン3内に
直線部を有する長円形状の貫通孔4があり、巻線を複数
ターン巻回できるタイプである。On the other hand, the magnetic core device 1 shown in FIG. 13 is of a type in which an oblong through hole 4 having a straight portion is provided in the bobbin 3, and the winding wire can be wound in multiple turns.
ただし、このタイプは、前者と比較してボビン強度が低
い。However, this type has lower bobbin strength than the former.
このような巻線を巻回できるタイプのボビン3は、通常
、ブロックを切削したり、鋳込み成形等によって一体成
形加工されて製造される。The bobbin 3 of the type capable of winding such a winding wire is usually manufactured by cutting a block or integrally molding the block by casting or the like.
そして、非円形形状の閉磁路を有する軟磁性体のコア2
にボビン3を嵌装して磁心装置が製造される。A soft magnetic core 2 having a non-circular closed magnetic path
A magnetic core device is manufactured by fitting the bobbin 3 into the.
しかし、コア2の内径輪郭は、非円形形状であるので、
ボビン嵌装に際して、コア2を損傷することがある。However, since the inner diameter contour of the core 2 is non-circular,
When fitting the bobbin, the core 2 may be damaged.
また、巻線用の貫通孔4は、できるだけ@線作業を容易
にするために広いものとしたいが。Further, the through hole 4 for the winding wire should be made as wide as possible in order to make the @ wire work as easy as possible.
このためにはボビン3の肉厚1例えば第13図に示され
る磁心1ではボビンの特に対向直線部を薄くする必要が
ある。For this purpose, it is necessary to reduce the wall thickness of the bobbin 3, for example, in the case of the magnetic core 1 shown in FIG. 13, particularly at the facing straight portions of the bobbin.
しかし、切削や、成形による一体型のボビン3では、薄
くするのに限度があり、あるいは変肉等が生じたりする
。However, with the integrated bobbin 3 made by cutting or molding, there is a limit to how thin the bobbin 3 can be made, or changes in thickness may occur.
さらに、ボビン3を後から嵌装するため、コア2に精度
よく嵌装することが困難であり、ボビン3と、コア2間
に隙間ができ、取扱い性等の点て問題がある。Furthermore, since the bobbin 3 is fitted later, it is difficult to fit the bobbin 3 onto the core 2 with high precision, and a gap is created between the bobbin 3 and the core 2, which poses a problem in terms of ease of handling.
ところで、磁心装置lのコア材料として、特に角形比(
Br/Bs)や透磁率(μ)が高く、保磁力(He )
が低い等の優れた軟磁気特性を有する点で、非晶質磁性
合金の薄板が適している。By the way, as the core material of the magnetic core device l, especially the squareness ratio (
Br/Bs) and magnetic permeability (μ), and coercive force (He).
A thin plate of an amorphous magnetic alloy is suitable because it has excellent soft magnetic properties such as low magnetic flux.
例えば、rIEEE Conf、 Record of
15th PowerModulator Symp
osium、 June 14−16.1982゜Ba
ltimore、 MD (アライド社)」には、レ
ーストラック型磁心装置のコア材料として、非晶質磁性
合金の薄板の巻回体を用いることが記載されている。For example, rIEEE Conf, Record of
15th Power Modulator Symp
osium, June 14-16.1982゜Ba
lttimore, MD (Allied Corporation) describes the use of a wound body of a thin plate of an amorphous magnetic alloy as the core material of a racetrack type magnetic core device.
この場合、磁気スイッチ等の用途では、非晶質磁性合金
薄板の層間絶縁のために、薄板に絶縁材を塗布すること
や、薄板を非磁性絶縁フィルムを介して巻回すること等
が好ましい。In this case, for applications such as magnetic switches, it is preferable to coat the thin plate with an insulating material or to wind the thin plate with a non-magnetic insulating film interposed therebetween for interlayer insulation of the amorphous magnetic alloy thin plate.
しかし、薄板に絶縁材を塗布する方法では眉間絶縁が不
十分である。However, the method of applying insulating material to a thin plate does not provide sufficient insulation between the eyebrows.
そこで、上記文献には、非晶質磁性合金薄板には磁気特
性向上のための熱処理が必要であるため、非円形形状す
なわち外形が平行直線部を有する長円形状のボビン3に
、熱処理をした非晶質磁性薄板と、絶縁フィルムとを所
定の大きさのテンションをかけながら重ねて巻回して磁
心装置1を製造する旨が記載されている。Therefore, the above-mentioned document states that since amorphous magnetic alloy thin plates require heat treatment to improve their magnetic properties, the bobbin 3, which has a non-circular shape, that is, an oval shape with parallel straight parts, is heat-treated. It is described that the magnetic core device 1 is manufactured by stacking and winding an amorphous magnetic thin plate and an insulating film while applying a predetermined amount of tension.
また、上記文献には、外形が平行直線部を有する長円形
状のアルミニウム製のボビン3に非晶質磁性合金薄板と
、絶縁フィルムとを重ねて巻回した後に熱処理を行う旨
も記載されている。The above document also describes that heat treatment is performed after an amorphous magnetic alloy thin plate and an insulating film are layered and wound around an oval aluminum bobbin 3 having parallel straight portions. There is.
しかし、熱処理後に、非晶質磁性合金薄板をボビン3に
巻回する方法では、熱処理後の薄板の巻回状態と、ボビ
ン3への巻回後の薄板の巻回状態とが変わってしまうた
め、薄板の曲率が変化し、内部応力が大きくなり、この
結果特に角形比が低下する。However, in the method of winding the amorphous magnetic alloy thin plate around the bobbin 3 after heat treatment, the winding condition of the thin plate after heat treatment and the winding condition of the thin plate after winding around the bobbin 3 are different. , the curvature of the thin plate changes, the internal stress increases, and as a result, especially the squareness ratio decreases.
しかも、ボビン3の外形は非円形形状、すなわち平行直
線部を有する長円形状であるため、テンションが均一に
ならず、巻きゆるみが生じる。Moreover, since the outer shape of the bobbin 3 is a non-circular shape, that is, an elliptical shape with parallel straight parts, the tension is not uniform, and the winding becomes loose.
また、薄板を非円形形状のボビン3に巻回した後に熱処
理を行う方法では、ボビン3や薄板の熱膨張により、ボ
ビン3が曲がってしまうほか、ボビン3が熱処理温度、
例えば200〜400℃に耐えられなければならないた
め、ボビン材質が金属またはセラミックスに限定されコ
ストアップになる問題がある。In addition, in the method of heat-treating a thin plate after winding it around a non-circular bobbin 3, the bobbin 3 may be bent due to thermal expansion of the bobbin 3 and the thin plate, and the bobbin 3 may be heated at
For example, since the bobbin must be able to withstand temperatures of 200 to 400[deg.] C., the material of the bobbin is limited to metal or ceramics, resulting in an increase in cost.
加えて9、薄板を非円形形状のボビン3に巻回する際、
テンションが均一にならないため、巻きゆるみが生じる
。In addition 9, when winding the thin plate around the non-circular bobbin 3,
Because the tension is not uniform, the winding becomes loose.
〈発明が解決しようとする課題〉
本発明の主たる目的は、第1に2非円形形状の閉磁路を
有するコアに、コアを傷つけることなく、かつ精度よく
嵌装できる磁心装置用ボビンと、磁心装置を提供するこ
とにある。<Problems to be Solved by the Invention> The main objects of the present invention are, firstly, to provide a bobbin for a magnetic core device that can be fitted into a core having a non-circular closed magnetic path without damaging the core and with high precision; The goal is to provide equipment.
また、他の目的は、非円形形状の閉磁路を有する巻回体
内に、薄板に歪ないし応力を加えることなく嵌装でき、
薄板の熱処理時、絶縁フィルムを嵌入するための巻回を
不用とし、製造が容易であり、かつ低コストの磁心装置
用ボビンと、磁心装置と、磁心装置の製造方法とを提供
することにある。Another object is to be able to fit the thin plate into a wound body having a non-circular closed magnetic path without applying distortion or stress to the thin plate.
An object of the present invention is to provide a bobbin for a magnetic core device, a magnetic core device, and a method for manufacturing the magnetic core device that eliminates the need for winding for inserting an insulating film during heat treatment of a thin plate, is easy to manufacture, and is low cost. .
〈課題を解決するための手段〉
このような目的は下記の(1)〜(14)の本発明によ
って達成される。<Means for Solving the Problems> Such objects are achieved by the following inventions (1) to (14).
(1)断面非円形形状の貫通孔の周囲に連続した閉磁路
を有する軟磁性体のコアの内周部に嵌装するボビンであ
って、2以上のボビン部材を接合して、少なくとも前記
コアの内周部と対接する外周面が2以上のボビン部材か
ら形成されるように構成され、中央部に貫通孔を有する
ことを特徴とする磁心装置用ボビン。(1) A bobbin that is fitted into the inner peripheral part of a soft magnetic core having a continuous closed magnetic path around a through-hole having a non-circular cross-section, the bobbin having two or more bobbin members joined to at least the core. 1. A bobbin for a magnetic core device, characterized in that an outer circumferential surface in contact with an inner circumferential portion of the bobbin is formed of two or more bobbin members, and has a through hole in a central portion.
(2)前記コアがレーストラック形状である上記(1)
に記載の磁心装置用ボビン。(2) (1) above, wherein the core has a racetrack shape
A bobbin for a magnetic core device described in .
(3)前記ボビンの貫通孔が、断面矩形形状である上記
(1)または(2)に記載の磁心装置用ボビン。(3) The bobbin for a magnetic core device according to (1) or (2) above, wherein the through hole of the bobbin has a rectangular cross section.
(4)前記ボビンの貫通孔を構成する内周面が2以上の
ボビン部材から形成される上記(1)ないしく3)のい
ずれかに記載の磁心装置用ボビン。(4) The bobbin for a magnetic core device according to any one of (1) to 3) above, wherein the inner circumferential surface constituting the through hole of the bobbin is formed from two or more bobbin members.
(5)前記コアがレーストラック形状であり、前記ボビ
ン部材は、前記コアの直線部の内周部のほぼ全長と対接
する一対の肉薄の直線部ボビン部材と、前記コアの曲部
の内周部に対接する一対の肉厚の曲部ボビン部材とから
形成され、これらボビン部材を接合したとき、断面矩形
形状の貫通孔が形成される上記(4)に記載の磁心装置
用ボビン。(5) The core has a racetrack shape, and the bobbin member includes a pair of thin straight bobbin members that are in contact with substantially the entire length of the inner circumference of the straight portion of the core, and an inner circumference of the curved portion of the core. The bobbin for a magnetic core device according to (4) above, wherein the bobbin is formed from a pair of thick curved bobbin members that are in contact with each other, and a through hole having a rectangular cross section is formed when these bobbin members are joined.
(6)前記コアの内周、外周間の肉厚をtc、前記直線
部ボビン部材の肉厚をts、前記曲部ボビン部材の最大
肉厚をtr、としたとき、ts/tcが0.1〜0.5
、tr/tcが0.5〜2である上記(5)に記載の磁
心装置用ボビン。(6) When the thickness between the inner and outer circumferences of the core is tc, the thickness of the straight bobbin member is ts, and the maximum thickness of the curved bobbin member is tr, ts/tc is 0. 1-0.5
, tr/tc is 0.5 to 2, the bobbin for a magnetic core device according to (5) above.
(7)前記直線部ボビン部材間の貫通孔間隙をw、前記
曲部ボビン部材間の貫通孔間隙をiとしたとき、t s
/wが0.04〜1、ts/βが0.006〜0.1で
ある上記(6)に記載の磁心装置用ボビン。(7) When the through-hole gap between the straight bobbin members is w, and the through-hole gap between the curved bobbin members is i, t s
The bobbin for a magnetic core device according to (6) above, wherein /w is 0.04 to 1 and ts/β is 0.006 to 0.1.
(8)上記(1)ないしく7)のいずれかに記載の磁心
装置用ボビンに、軟磁性体のコアを嵌装したことを特徴
とする磁心装置。(8) A magnetic core device, characterized in that a soft magnetic core is fitted into the bobbin for a magnetic core device according to any one of (1) to 7) above.
(9)前記コアが、磁性合金薄板の巻回体である上記(
8)に記載の磁心装置。(9) The above (wherein the core is a wound body of a thin magnetic alloy plate)
8) The magnetic core device according to item 8).
(10)前記磁性合金薄板が、非晶質磁性合金薄板であ
る上記(9)に記載の磁心装置。(10) The magnetic core device according to (9) above, wherein the magnetic alloy thin plate is an amorphous magnetic alloy thin plate.
(11)前記磁性合金薄板が、非磁性絶縁性フィルムを
介して巻回されている上記(9)または(10)に記載
の磁心装置。(11) The magnetic core device according to (9) or (10) above, wherein the magnetic alloy thin plate is wound with a nonmagnetic insulating film interposed therebetween.
(12)磁性合金薄板を巻回したのち、非円形形状に保
持した状態で熱処理し、次いで巻回体に上記(1)ない
しく7)のいずれかに記載の磁心装置用ボビンを嵌装す
ることを特徴とする磁心装置の製造方法。(12) After winding the magnetic alloy thin plate, it is heat treated while being held in a non-circular shape, and then the bobbin for a magnetic core device according to any one of (1) to 7) above is fitted to the wound body. A method for manufacturing a magnetic core device, characterized by:
(13)前記磁性合金薄板が、非晶質磁性合金薄板であ
る上記(12)に記載の磁心装置の製造方法。(13) The method for manufacturing a magnetic core device according to (12) above, wherein the magnetic alloy thin plate is an amorphous magnetic alloy thin plate.
(14)前記磁性合金薄板を非磁性絶縁性フィルムを介
して巻回する上記(12)または(13)に記載の磁心
装置の製造方法。(14) The method for manufacturing a magnetic core device according to (12) or (13) above, wherein the magnetic alloy thin plate is wound with a nonmagnetic insulating film interposed therebetween.
くイ乍用〉
本発明の磁心装置用ボビンは、2以上に縦断分割された
ボビン部材で構成される。For use> The bobbin for a magnetic core device of the present invention is composed of a bobbin member vertically divided into two or more.
そして、ボビンをコアに嵌装する際には、ボビン部材を
挿入後組み立てるため、コアを傷つけることがない。When fitting the bobbin to the core, the bobbin member is assembled after being inserted, so the core is not damaged.
また、巻線用の貫通孔を広いものとする目的でボビンの
肉厚を薄(することができ、しかも、ボビン部材は単純
形状でかつ対称性のよい形状に分割できるので部材の寸
法および面精度を高いものとすることができる。In addition, the wall thickness of the bobbin can be made thin in order to widen the through hole for the winding wire, and the bobbin member can be divided into simple and symmetrical shapes, so the size and surface of the member can be reduced. High accuracy can be achieved.
加えて、精度の高いボビン部材を組み立てるので、コア
に精度よ(嵌装できる。In addition, since we assemble high-precision bobbin members, we can fit them into the core with precision.
また、非晶質磁性合金等の巻回体をコアとするときには
、前記に加え磁性合金薄板間に隙間が生じることなく、
しかも巻回時の曲率のまま、すなわち薄板に歪を生じる
ことなく嵌装することができる。In addition, when using a wound body of an amorphous magnetic alloy or the like as a core, in addition to the above, there is no gap between the magnetic alloy thin plates.
Moreover, the thin plate can be fitted with the same curvature as when it is wound, that is, without causing distortion in the thin plate.
そして、弾性をもつ非晶質磁性合金等の巻回体は外力に
より変形しやすく、取り扱い時、巻回体は一定の形を保
持しない場合があるので、特に一体型ボビンでは挿入が
困難であるが、本発明により挿入が容易となり、巻回体
の損傷や不必要な歪の発生がより一層減少する。In addition, wound bodies made of elastic amorphous magnetic alloys are easily deformed by external forces, and the wound body may not maintain a constant shape during handling, making it difficult to insert a one-piece bobbin in particular. However, according to the present invention, insertion becomes easier, and damage to the wound body and occurrence of unnecessary distortion are further reduced.
加えて、本発明のボビンは、簡易な構造のボビン部材を
接合して製造されるため、ボビンの製造が容易であり、
かつ製造コストが低い。In addition, since the bobbin of the present invention is manufactured by joining bobbin members with a simple structure, the bobbin is easy to manufacture.
And manufacturing cost is low.
〈発明の具体的構成〉 以下、本発明の具体的構成を詳細に説明する。<Specific structure of the invention> Hereinafter, the specific configuration of the present invention will be explained in detail.
本発明の磁心装置用ボビンは、磁心装置のコアの巻心な
いし内枠部である。The bobbin for a magnetic core device of the present invention is a winding core or an inner frame portion of a core of a magnetic core device.
コアは、横断面が非円形形状の貫通孔の周囲に連続した
閉磁路を有する軟磁性体である。The core is a soft magnetic material having a continuous closed magnetic path around a through hole having a non-circular cross section.
この場合、コア形状は、貫通孔の横断面の形状、すなわ
ちコアの横断面の内形輪郭が非円形形状であれば特に制
限はなく、コアの横断面の外形輪郭は1円形形状、非円
形形状いずれであってもよい。In this case, the core shape is not particularly limited as long as the shape of the cross section of the through hole, that is, the inner contour of the cross section of the core is non-circular, and the outer contour of the cross section of the core is 1 circular or non-circular. It can be of any shape.
なお、非円形形状としては例えば平行直線部を有する長
円形状(いわゆるレーストラック形状) 長円形状、正
方形形状、長方形形状等種々のものが挙げられる。Examples of the non-circular shape include various shapes such as an elliptical shape having parallel straight portions (so-called racetrack shape), an elliptical shape, a square shape, and a rectangular shape.
ただし、これらのうちコア形状としては、外形輪郭が平
行直線部を有する長円形状のレーストラック形状が好ま
しい。However, among these, the core shape is preferably an oval racetrack shape having an outer contour having parallel straight portions.
このような場合に、本発明の効果がより一層顕著に発揮
されるからである。This is because, in such a case, the effects of the present invention are exhibited even more markedly.
また、コア材質は、軟磁性体であれば特に制限はない。Further, the core material is not particularly limited as long as it is a soft magnetic material.
そして、コアは、巻回体でも各種フェライト等の成形
焼結体でも、成形体すなわち圧粉コアでもよい。The core may be a wound body, a molded sintered body of various types of ferrite, or a molded body, that is, a powder core.
本発明のボビンは、主に磁性合金薄板の巻回体の形状を
保持するための補強部材や、成形焼結体ないし成形体の
補強部材として、さらに巻回体や成形焼結体や成形体の
絶縁部材あるいは1タ一ン用導体として機能する。The bobbin of the present invention is mainly used as a reinforcing member for maintaining the shape of a wound body of magnetic alloy thin plates, a reinforcing member for a formed sintered body, or a formed body. It functions as an insulating member or a conductor for one terminal.
本発明のボビンは、2以上に分割されたボビン部材で構
成される。The bobbin of the present invention is composed of a bobbin member divided into two or more parts.
そして、2以上のボビン部材を接合して、コアの内周部
に嵌装した場合、少なくともコアの内周部と対接するボ
ビンの外周面が2以上のボビン部材で形成される。When two or more bobbin members are joined together and fitted onto the inner circumferential portion of the core, at least the outer circumferential surface of the bobbin that is in contact with the inner circumferential portion of the core is formed by the two or more bobbin members.
外周面を2以上のボビン部材を接合して形成することに
よって、嵌装後の組立てが実行できる。By forming the outer peripheral surface by joining two or more bobbin members, assembly after fitting can be performed.
ボビンの材質は、樹脂、アルミニウムやステンレス等の
非磁性金属、非磁性セラミックス等従来ボビン材質とし
て公知のもの何れであってもよい。The material of the bobbin may be any conventional bobbin material such as resin, non-magnetic metal such as aluminum or stainless steel, or non-magnetic ceramic.
この場合、より一層高い強度を得るには、金属材質が有
効であり、誘導電流による発熱を防止するには、例えば
フェノール樹脂、エポキシ樹脂、塩化ビニル、ナイロン
、ポリフッ化エチレン系樹脂等の加工性がよい樹脂材質
が好ましい。In this case, metal materials are effective in obtaining even higher strength, and in order to prevent heat generation due to induced current, materials with processability such as phenol resins, epoxy resins, vinyl chloride, nylon, and polyfluoroethylene resins are effective. A resin material with good properties is preferable.
また、本発明のボビン形状は、横断面の外形輪郭が、非
円形形状である。 例えば、平行直線部を有する長円形
状状、長円形状、正方形形状、長方形形状等種々の形状
であってよい。Further, the bobbin shape of the present invention has a non-circular outer contour in a cross section. For example, it may have various shapes such as an elliptical shape having parallel straight portions, an elliptical shape, a square shape, and a rectangular shape.
そして、組み立てられたボビンは、中央部に貫通孔を有
する。The assembled bobbin has a through hole in the center.
この場合、貫通孔の分だけボビン体積を減少させること
ができ、ボビン材料による誘電損が減少し、加えて1タ
ーン用の導体を嵌挿入することも巻線を複数ターン巻回
することもできる。In this case, the bobbin volume can be reduced by the amount of the through hole, reducing dielectric loss due to the bobbin material, and in addition, it is also possible to insert a conductor for one turn or wind the winding wire in multiple turns. .
また、貫通孔を構成する内周面は、2以上のボビン部材
から形成されることが好ましい。Moreover, it is preferable that the inner circumferential surface constituting the through hole is formed from two or more bobbin members.
このような場合は、軟磁性体のコアへの嵌装がさらに容
易となり、しかも部材の構造が簡易となり、寸法精度が
向上し、部材製造が容易となり、本発明の効果がより一
層高いものとなる。In such a case, it becomes easier to fit the soft magnetic material into the core, the structure of the member becomes simpler, the dimensional accuracy improves, the member manufacturing becomes easier, and the effects of the present invention are further enhanced. Become.
以下、好適例として、横断面の外形輪郭が平行直線部を
有する長円形状のレーストラック形状の磁心装置を例に
挙げ本発明の磁心装置用ボビンを説明する。Hereinafter, as a preferred example, the bobbin for a magnetic core device of the present invention will be described, taking as an example a magnetic core device whose cross-sectional outline has an oval racetrack shape and has parallel straight portions.
本発明の組み立て後のボビンの好適例を第9図に示す。A preferred example of the assembled bobbin of the present invention is shown in FIG.
図中、各ボビン部材相互の境界やビス止め用の孔部等は
省略されている。In the figure, boundaries between the respective bobbin members, holes for screwing, etc. are omitted.
ボビン3は、横断面がほぼ半円形状の一対の肉厚部38
.38と、横断面がほぼ直線状の一対の肉薄部39.3
9とを有する。The bobbin 3 has a pair of thick parts 38 whose cross section is approximately semicircular.
.. 38, and a pair of thin wall portions 39.3 whose cross section is substantially straight.
9.
そして、ボビン3の中央部には、断面はぼ矩形形状の貫
通孔4が形成される。A through hole 4 having a substantially rectangular cross section is formed in the center of the bobbin 3.
ボビン3がこのような構造であれば高い強度のまま貫通
孔4をより一層広くできる。If the bobbin 3 has such a structure, the through hole 4 can be made even wider while maintaining high strength.
ただし、従来の一体成形加工では、特に、第9図に示さ
れるように、細い直線部分、すなわち肉薄部39を有す
るボビン3の製造は困難であり、寸法や面精度等も不十
分である。However, with the conventional integral molding process, it is particularly difficult to manufacture the bobbin 3 having a thin straight portion, that is, a thin wall portion 39, as shown in FIG. 9, and the dimensions and surface accuracy are insufficient.
レーストラック形状の磁心装置の場合の本発明のボビン
3の好適寸法と、好適寸法比とを第9図に示されるボビ
ン3の肉厚部38(後述の曲部ボビン部材)の最大因[
ltr、肉薄部39(後述の直線部ボビン部材)の肉厚
ts、肉厚部38.38間の貫通孔間隙β、肉薄部39
.39間の貫通孔間隙w、ボビン3の高さhを用いて表
わすと下記のとおりである。The preferred dimensions and preferred dimension ratio of the bobbin 3 of the present invention in the case of a racetrack-shaped magnetic core device are determined by determining the maximum factor of the thick wall portion 38 of the bobbin 3 (curved bobbin member to be described later) shown in FIG.
ltr, thickness ts of thin wall portion 39 (straight section bobbin member described later), through hole gap β between thick wall portions 38 and 38, thin wall portion 39
.. It is as follows when expressed using the through-hole gap w between 39 and the height h of the bobbin 3.
t s/wは0.04〜1.特に0.05〜0.5、t
s/nは0.006〜O,l、特に0.01〜0.05
であることが好ましい。t s/w is 0.04 to 1. Especially 0.05~0.5, t
s/n is 0.006 to O,l, especially 0.01 to 0.05
It is preferable that
t s/wやts/βが前記範囲未満の場合、ボビン強
度が不十分になる傾向にある。If t s/w or ts/β is less than the above range, the bobbin strength tends to be insufficient.
ts/wやts/βが前記範囲をこえると、貫通孔4が
狭いものになるため、巻線作業が困難となり、加えて非
金属製ボビンの場合は、ボビン材料による誘電損が大と
なる傾向にある。If ts/w or ts/β exceeds the above range, the through hole 4 will become narrow, making it difficult to wind the wire, and in addition, in the case of a non-metallic bobbin, the dielectric loss due to the bobbin material will increase. There is a tendency.
また、ts/hは一般に0.1〜0.3である。Moreover, ts/h is generally 0.1 to 0.3.
そして、前記範囲の寸法比の場合、一般に、tsは2〜
10mm、trは10〜30II1mである。In the case of the size ratio in the above range, generally ts is 2 to 2.
10mm, tr is 10-30II1m.
また、コアの内周、外周間の肉厚をtcとしたとき、t
s/tcは0.1−0.5、tr/tcは0.5〜2で
あることが好ましい。Also, when the wall thickness between the inner and outer circumferences of the core is tc, t
It is preferable that s/tc is 0.1-0.5 and tr/tc is 0.5-2.
ts/1cji′11tr/tcが前記範囲未満の場合
、ボビン強度が不十分になる傾向にある。When ts/1cji'11tr/tc is less than the above range, the bobbin strength tends to be insufficient.
ts/tcやtr/tcが前記範囲をこえると、貫通孔
4が狭いものになるため、巻線作業が困難となり、加え
て非金属製ボビンの場合は、ボビン材料による誘電損が
大となる傾向にある。If ts/tc or tr/tc exceeds the above range, the through hole 4 will become narrow, making it difficult to wind the wire, and in addition, in the case of a non-metallic bobbin, the dielectric loss due to the bobbin material will increase. There is a tendency.
なお、ボビンの寸法や寸法比が前記範囲のとき、ボビン
の強度も十分となり、また嵌装の際の取り扱いがきわめ
て容易となり、本発明の効果がより一層向上する。When the dimensions and dimension ratio of the bobbin are within the above ranges, the bobbin has sufficient strength and is extremely easy to handle during fitting, thereby further improving the effects of the present invention.
なお、ボビン3には、つばやビス止め用の孔部等が必要
に応じで設けられてもよい。Note that the bobbin 3 may be provided with a collar, a hole for screwing, etc., if necessary.
この場合、つばが−法化されるボビンは、通常、ボビン
3の端面につばをビス止めして得られる。In this case, the bobbin whose collar is coated is usually obtained by fixing the collar to the end face of the bobbin 3 with screws.
以下、第1図および第3図〜第7図に、それぞれ本発明
のボビンの好適例を用いたレーストラック形状の磁心装
置を示し、図示例に従って説明する。Hereinafter, racetrack-shaped magnetic core devices using preferred examples of the bobbin of the present invention are shown in FIG. 1 and FIGS. 3 to 7, respectively, and will be described according to the illustrated examples.
第1図に示されるボビン3は、コア2に嵌装した際5コ
ア2の曲部21.23と対接する曲部ボビン部材31.
33と、コア2の直線部25.27と対接する直線部ボ
ビン部材35.37とで構成される。The bobbin 3 shown in FIG. 1 has a bent bobbin member 31.23 that contacts the bent portions 21.23 of the 5-core 2 when the bobbin 3 is fitted into the core 2.
33, and a straight part bobbin member 35.37 that is in contact with the straight part 25.27 of the core 2.
この場合、ボビン3は、前記のとおり、各種成形焼結体
や成形体にも使用できるが、特に磁性°合金薄板の巻回
体、さらに好ましくは非晶質磁性合金薄板の巻回体に用
いた場合に特に効果が高い。In this case, the bobbin 3 can be used for various molded sintered bodies and molded bodies as described above, but is particularly suitable for wound bodies of magnetic alloy thin plates, and more preferably for wound bodies of amorphous magnetic alloy thin plates. It is particularly effective when
また、第2図は第1図に示されるボビン3の斜視図であ
る。2 is a perspective view of the bobbin 3 shown in FIG. 1.
曲部ボビン部材31.33は、それぞれ横断面が、はぼ
半円形状であり、それぞれの円弧終了部に、直線状の凸
部311.313、凸部335.337を有する。The curved bobbin members 31.33 each have a semicircular cross section, and have straight protrusions 311.313 and 335.337 at the end of each arc.
このような形状にすることにより、ボビンの強度を高め
ることができる。By adopting such a shape, the strength of the bobbin can be increased.
直線部ボビン部材35.37は、それぞれ直線板状であ
り、それぞれの端部に凸部351.355、凸部373
.377を有する。The straight bobbin members 35 and 37 are each in the shape of a straight plate, and have convex portions 351 and 355 and a convex portion 373 at each end.
.. It has 377.
これら各ボビン部材31.33.35.37は互いに接
合され、外形輪郭は直線部を有する長円形状であり、内
部に断面矩形形状の貫通孔4を有するボビン3が構成さ
れる。These bobbin members 31, 33, 35, 37 are joined to each other to form a bobbin 3 having an oval outer contour with a straight portion and a through hole 4 having a rectangular cross section inside.
各ボビン部材の接合は、凸部311.351間、凸部3
13.373間、凸部335.355問および凸部33
7.377間を係止しつつ、これを接合することによっ
て行われる。 接合には、例えば凸部同志を各種接着剤
によって接着したり、各種ビスによって接合すればよい
。The joining of each bobbin member is between the protrusions 311 and 351, and between the protrusions 3 and 3.
13.373 questions, 335.355 convex parts and 33 convex parts
This is done by joining them while locking them. For example, the convex portions may be bonded together using various adhesives, or may be bonded using various screws.
ビス止めは、通常第8図に示されるように、ボビン3の
内周側からビス10を螺入して行う。Screw fastening is usually performed by screwing a screw 10 into the bobbin 3 from the inner peripheral side, as shown in FIG.
そして、通常、各接合部をそれぞれ2ケ所以上ビス止め
する。Then, each joint is usually secured with two or more screws.
ビスを用いる場合は、うず電流等による損失を防止でき
る点で、特にプラスチック製ないし非磁性セラミックス
製のビスが好ましい。When using screws, screws made of plastic or non-magnetic ceramics are particularly preferred since they can prevent losses due to eddy currents and the like.
プラスチックとしては、例えばポリカーボネート、ポリ
フッ化エチレン系樹脂、フェノール樹脂等が挙げられる
。Examples of the plastic include polycarbonate, polyfluoroethylene resin, and phenol resin.
なお、凸部311.313.335.
337.351,355.373および377は、ボビ
ン部材31.33.35および37を互いに接合でき、
所定形状で滑らかな外形および貫通孔輪郭が形成されれ
ば何れの位置に用いられてもよい。 例えば、第3図に
示されるように第1図に示されるボビン3とは逆に、直
線部ボビン部材の凸部を曲部ボビン部材の凸部の外方か
ら係止して接合してもよい。Note that the convex portions 311.313.335. 337.351, 355.373 and 377 can join the bobbin members 31.33.35 and 37 to each other,
It may be used in any position as long as it has a predetermined shape and a smooth outer shape and through-hole outline. For example, as shown in FIG. 3, contrary to the bobbin 3 shown in FIG. 1, the convex portion of the straight bobbin member may be joined by locking the convex portion of the curved bobbin member from the outside. good.
また、一方の凸部を他方に嵌入するようにしてもよい。Alternatively, one of the protrusions may be fitted into the other.
このようにボビン3を組み立てた際、ボビン3には貫通
孔4が形成される。When the bobbin 3 is assembled in this manner, a through hole 4 is formed in the bobbin 3.
従って、貫通孔4の分だけ、ボビン3の体積を減少させ
ることができる。 この結果ボビン体積の減少分だけボ
ビン材料による誘電損が減少する。 加えて磁心装置1
には、lターン用の導体を嵌挿入することも巻線を複数
ターン巻回することもできる。Therefore, the volume of the bobbin 3 can be reduced by the amount of the through hole 4. As a result, the dielectric loss due to the bobbin material is reduced by the reduction in the bobbin volume. In addition, magnetic core device 1
It is also possible to insert a conductor for one turn or to wind the winding wire in multiple turns.
第4図には、本発明のボビン3の別の例が示される。FIG. 4 shows another example of the bobbin 3 of the present invention.
この場合は、第1図〜第3図に示される例とは異なり、
ボビン部材31.33.35.37には、凸部を形成す
ることなく、縦断4分割されている。In this case, unlike the examples shown in Figures 1 to 3,
The bobbin members 31, 33, 35, and 37 are divided into four longitudinal sections without forming any convex portions.
そして、各ボビン部材は、各ボビン部材の側面にて互い
に係止接合されて、所定形状と滑らかな外形および内形
を有するボビン3が構成される。The bobbin members are locked and joined to each other at the side surfaces of each bobbin member, thereby forming a bobbin 3 having a predetermined shape and a smooth outer and inner shape.
また、第5図および第6図には、それぞれ2分割したボ
ビン部材を接合した本発明のボビン3の例が示される。Further, FIGS. 5 and 6 each show an example of a bobbin 3 of the present invention in which two bobbin members are joined together.
第5図に示される一対のボビン部材30.30゛は、そ
れぞれ断面がほぼ半円形状の肉厚部にて対称に縦断2分
割されたものである。A pair of bobbin members 30 and 30'' shown in FIG. 5 are each symmetrically divided into two longitudinally by a thick portion having a substantially semicircular cross section.
第6図にボされる一対のボビン部材32.32゛は、そ
れぞれ、断面がほぼ直線状の肉薄部にて縦断2分割され
たものである。A pair of bobbin members 32 and 32' shown in FIG. 6 are each divided into two vertically by a thin section having a substantially linear cross section.
そして、ボビン部材32は、接合用の凸部321.32
3を有し、ボビン部材32°は、接合用の凸部321°
、323’を有する。The bobbin member 32 has convex portions 321 and 32 for joining.
3, the bobbin member 32° has a convex portion 321° for joining.
, 323'.
これら第5図および第6図に示されるボビン3は、ボビ
ン部材が1種類であるため、製造上有利である。The bobbin 3 shown in FIGS. 5 and 6 has only one type of bobbin member, and is therefore advantageous in manufacturing.
また、第7図には、3分割したボビン部材を接合した本
発明のボビン3の例が示される。Further, FIG. 7 shows an example of a bobbin 3 of the present invention in which bobbin members divided into three parts are joined.
ボビン部材34.34°および36は、断面がほぼ半円
形状の一対の肉厚部にて縦断分割し、3分割されたもの
である。The bobbin members 34, 34° and 36 are vertically divided into three parts by a pair of thick portions each having a substantially semicircular cross section.
より具体的には、中央の外形はぼ矩形形状のボビン部材
36の両端に、はぼ半円形状のボビン部材34.34゛
を接合するものである。More specifically, approximately semicircular bobbin members 34.34' are joined to both ends of a bobbin member 36 whose central outer shape is approximately rectangular.
第5図〜第7図に示される例でも各ボビン部材は互いに
接合されて、所定形状と滑らかな外形および内形を有す
るボビン3が構成される。In the examples shown in FIGS. 5 to 7, the respective bobbin members are joined to each other to form a bobbin 3 having a predetermined shape and a smooth outer and inner shape.
第1図および第3図〜第7図に示されるボビン3は、何
れも組み立て後は、コア2の曲線部21.23に横断面
がほぼ半円形状の肉厚部が形成されるため、強度の高い
ボビン3が得られる。 そして、コア2の直線部25.
27に対接する部分は、薄い直線状であるため貫通孔4
をより一層広(形成できる。In each of the bobbins 3 shown in FIG. 1 and FIGS. 3 to 7, after assembly, a thick portion with a substantially semicircular cross section is formed in the curved portion 21, 23 of the core 2. A bobbin 3 with high strength is obtained. Then, the straight portion 25 of the core 2.
The part that is in contact with 27 is thin and linear, so the through hole 4
can be formed even wider.
また、前記各ボビンのうち、第1図、第3図および第4
図に示されるタイプのボビンが特に好ましい。Also, among the above bobbins, Fig. 1, Fig. 3, and Fig. 4
Particularly preferred are bobbins of the type shown in the figures.
これらは、ボビン3を直線部ボビン部材と、曲部ボビン
部材とに分割しているため、他のタイプのボビンに比べ
、精度よ(、しかも容易に各ボビン部材を製造できる。Since the bobbin 3 is divided into a straight bobbin member and a curved bobbin member, each bobbin member can be manufactured more accurately (and more easily) than other types of bobbins.
加えて、ボビン3の一対の直線状の肉薄部が、それぞれ
一部材で構成されているため、きわめて高い機械的強度
が得られる。In addition, since the pair of linear thin sections of the bobbin 3 are each made of a single member, extremely high mechanical strength can be obtained.
以上は1本発明の磁心装置用ボビン3の好適例を挙げて
説明してきたが、本発明は、これらに限定されるもので
はなく、ボビン3が2以上のボビン部材で構成されてお
り、横断面の外形輪郭が非円形状であり、一般に断面矩
形形状の貫通孔が形成されるものであれば、ボビン部材
の形状や寸法等の諸条件は何れであってもよい。 この
場合、ボビン3の寸法等は目的や用途に応じて適宜決定
される。The above description has been made by citing a preferred example of the bobbin 3 for a magnetic core device of the present invention, but the present invention is not limited to these, and the bobbin 3 is composed of two or more bobbin members, and As long as the outer contour of the surface is non-circular and a through hole having a generally rectangular cross section is formed, the conditions such as the shape and dimensions of the bobbin member may be any. In this case, the dimensions of the bobbin 3 are appropriately determined depending on the purpose and use.
次に本発明のボビン3を用いた連続閉磁路を有する磁心
装置1と、その製造方法とを説明する。Next, a magnetic core device 1 having a continuous closed magnetic path using the bobbin 3 of the present invention and a manufacturing method thereof will be explained.
なお、この場合も好適例として、コア2として磁性合金
薄板の巻回体を用いたレーストラック形状の磁心装置を
例にして説明する。In this case as well, as a preferred example, a racetrack-shaped magnetic core device using a wound body of a thin magnetic alloy plate as the core 2 will be explained.
用いる磁性合金薄板には特に制限はないが、非晶質磁性
合金薄板であることが好ましい。Although there are no particular restrictions on the magnetic alloy thin plate used, an amorphous magnetic alloy thin plate is preferable.
非晶質磁性合金薄板の組成としては、従来公知のもの何
れでもよいが、通常Co系の非晶質磁性合金から適宜選
択される。The composition of the amorphous magnetic alloy thin plate may be any conventionally known composition, but it is usually appropriately selected from Co-based amorphous magnetic alloys.
非晶質磁性合金薄板の厚さは、通常14〜25−程度、
幅は、通常10〜100o+m程度とする。The thickness of the amorphous magnetic alloy thin plate is usually about 14 to 25 mm.
The width is usually about 10 to 100 o+m.
また、絶縁フィルムとしては、広範囲の絶縁性樹脂の中
から種々のものを選択できる。Further, as the insulating film, various insulating resins can be selected from a wide range of insulating resins.
例えば、ポリエステル、ポリアミド、ポリイミド等が挙
げられ、ポリエステルとしては、ポリエチレンテレフタ
レート(PET)が好ましい。Examples include polyester, polyamide, polyimide, etc., and polyethylene terephthalate (PET) is preferable as polyester.
絶縁フィルムの厚さは通常2〜6−程度、幅は通常11
〜108mm程度とする。The thickness of the insulating film is usually about 2 to 6 mm, and the width is usually about 11 mm.
~108mm.
まず、第10図に示されるようにこのような非晶質磁性
合金薄板8と、絶縁フィルム9とを重ねて、例えば割型
の巻枠6等に巻回し、端部を固定し、内形および外形輪
郭が円形形状のトロイダル巻回体5を得る。First, as shown in FIG. 10, such an amorphous magnetic alloy thin plate 8 and an insulating film 9 are layered and wound around, for example, a split winding frame 6, the ends are fixed, and the inner shape is And a toroidal wound body 5 having a circular outer contour is obtained.
なお、巻き初めや巻き終りの端部はテープ等にて固定す
ればよい。Note that the ends at the beginning and end of winding may be fixed with tape or the like.
巻回時には角形比等の磁気特性を向上させるため、テン
ションをかけることが好ましい。During winding, it is preferable to apply tension in order to improve magnetic properties such as squareness ratio.
この場合、トロイダル形状すなわち断面円形形状に巻回
するのでテンションを均一にかけることができる。In this case, since the wire is wound in a toroidal shape, that is, in a circular cross-section, tension can be applied uniformly.
非晶質磁性合金薄板のテンシfンは、10〜100 k
g/c+++”程度、絶縁フィルムのテンションは、1
〜5 kg/am”程度とすることが好ましい。The tensile strength of the amorphous magnetic alloy thin plate is 10 to 100 k.
g/c+++”, the tension of the insulating film is 1
It is preferable to set it to about 5 kg/am''.
トロイダル巻回体5の寸法は用途等に応じ適宜決定すれ
ばよいが、通常、内径100〜400mm程度、外径1
50〜450III11程度、厚み10〜100mm程
度である。The dimensions of the toroidal wound body 5 may be determined as appropriate depending on the application, etc., but usually, the inner diameter is about 100 to 400 mm, and the outer diameter is about 1.
The size is about 50 to 450III11, and the thickness is about 10 to 100 mm.
次いで、トロイダル巻回体5を割型の巻枠6からはずし
熱処理用治具を使用して熱処理を行う。Next, the toroidal wound body 5 is removed from the split winding frame 6 and subjected to heat treatment using a heat treatment jig.
この場合、例えば、第11図に示される形状の規制用の
凸部71と、磁場印加用の貫通孔75とを有する熱処理
用治具7を使用する。In this case, for example, a heat treatment jig 7 having a regulating convex portion 71 having the shape shown in FIG. 11 and a through hole 75 for applying a magnetic field is used.
そして、トロイダル巻回体5を治具7の中央部のトラッ
ク型に挿入し、図示しない板で上下をはさんだあとレー
ストラック形状に保持した状態で熱処理を行う。Then, the toroidal wound body 5 is inserted into a track shape at the center of the jig 7, and the top and bottom are sandwiched between plates (not shown), and heat treatment is performed while holding the body in a racetrack shape.
なお、レーストラック形状の磁心装置以外のコア形状の
磁心装置を製造する場合は、コア形状に応じて治具7の
形状、規制用の凸部71の形状をかえればよい。In addition, when manufacturing a magnetic core device having a core shape other than a racetrack-shaped magnetic core device, the shape of the jig 7 and the shape of the regulating convex portion 71 may be changed depending on the core shape.
熱処理は無磁場中あるいは磁場中のいずれで行ってもよ
が、角形比を向上させるため、磁場中で行うことが好ま
しい。The heat treatment may be carried out either in the absence of a magnetic field or in a magnetic field, but it is preferably carried out in a magnetic field in order to improve the squareness ratio.
熱処理温度は、結晶化温度Tx未未満上キュリー温度T
c以下行う。The heat treatment temperature is below the crystallization temperature Tx and above the Curie temperature T.
Do the following c.
通常、印加磁界は5〜100e程度であり、熱処理温度
は、200〜400℃程度であり、最高温度での保持時
間は1〜3時間程度である。 熱処理雰囲気には、非酸
化性、酸化性、還元性雰囲気を用いることができ、特に
非酸化性雰囲気が好適である。Usually, the applied magnetic field is about 5 to 100 e, the heat treatment temperature is about 200 to 400° C., and the holding time at the maximum temperature is about 1 to 3 hours. A non-oxidizing, oxidizing, or reducing atmosphere can be used as the heat treatment atmosphere, and a non-oxidizing atmosphere is particularly suitable.
このようにして、横断面の外形輪郭が平行直線部を有す
る長円形状であり、中央部に貫通孔を有するレーストラ
ック形状の巻回体20が得られる。In this way, a racetrack-shaped wound body 20 having an oval cross-sectional outline with parallel straight portions and a through hole in the center is obtained.
次いで、熱処理後の巻回体20の形状のまま、巻回体2
0にボビン3を嵌装する。Next, while keeping the shape of the rolled body 20 after the heat treatment, the rolled body 2 is
0 to fit bobbin 3.
この場合、熱処理後の非晶質磁性合金薄板の曲率を保持
したまま磁心装置1を製造することができるため、磁心
装置1の磁気特性を劣化させることがなく、高い角形比
や低い保磁力Hcが得られる。In this case, since the magnetic core device 1 can be manufactured while maintaining the curvature of the amorphous magnetic alloy thin plate after heat treatment, the magnetic properties of the magnetic core device 1 are not deteriorated, and the squareness ratio is high and the coercive force Hc is low. is obtained.
ボビン3を嵌装するには、巻回体20の内側に、例えば
ボビン部材の一部を配置し、残りのボビン部材をボビン
部材間の接合部および巻回体間にてスライド嵌入して組
み立て、各部材をビスや接着剤等にて接合する。To fit the bobbin 3, for example, a part of the bobbin member is placed inside the winding body 20, and the remaining bobbin members are slid into the joint between the bobbin members and between the winding bodies to assemble. , each member is joined using screws, adhesive, etc.
このように、ボビンの嵌装には、分割したボビン部材を
用いるため、巻回体20とボビン3とを隙間な(、かつ
巻回体20を傷つけることな(、しかも容易に嵌合でき
る。In this way, since the divided bobbin members are used to fit the bobbin, the winding body 20 and the bobbin 3 can be easily fitted together without a gap (and without damaging the winding body 20).
そして、本発明の製造方法では、非円形形状のボビン3
に磁性合金薄板を巻回する工程がないため、巻回体20
には巻きゆるみが生じない。In the manufacturing method of the present invention, the bobbin 3 having a non-circular shape
Since there is no process of winding the magnetic alloy thin plate in the
There is no looseness in the winding.
完成した磁心装N1には目的に応じ、図示しない所定数
の巻線を1ターンあるいは2ターン以上巻回し可飽和リ
アクタ等とする。 巻線を巻回するには従来の公知の方
法を用いればよい。Depending on the purpose, the completed magnetic core N1 is wound with a predetermined number of windings (not shown) for one turn or two or more turns to form a saturable reactor or the like. Any conventional known method may be used to wind the winding.
なお、ボビン材料として金属を用いる場合は、ボビン3
自体を1ターン用の導体として用いてもよい。In addition, when using metal as the bobbin material, the bobbin 3
The conductor itself may be used as a conductor for one turn.
また、高電圧を印加して使用する場合には、全体を従来
公知の絶縁性オイル中に浸漬して絶縁性を高めることも
できる。In addition, when using the device by applying a high voltage, the insulation property can be improved by immersing the entire device in a conventionally known insulating oil.
本発明の磁心装置用ボビン3を有する磁心装置1は、粒
子加速器やエキシマレーザ用等の磁気スイッチ、スイッ
チングレギュレータ、パルス圧縮装置等の可飽和リアク
タ、パルストランス等に好適に用いることができる。The magnetic core device 1 having the bobbin 3 for a magnetic core device of the present invention can be suitably used in magnetic switches for particle accelerators and excimer lasers, switching regulators, saturable reactors such as pulse compression devices, pulse transformers, and the like.
第12図には、多段の磁気スイッチを用いて圧縮パルス
を発生する回路例が示される。FIG. 12 shows an example of a circuit that generates compression pulses using multi-stage magnetic switches.
この回路は、インダクタL++可飽和リアクタLtj1
5よびり、とキャパシタC1、CsおよびCsとから3
段に構成されている。 各キャパシタのキャパシタンス
は相等しく、また各可飽和リアクタのインダクタンスは
、高次段はど、すなわち出力側はど小さいものとする。This circuit consists of an inductor L++ + a saturable reactor Ltj1
5, and capacitors C1, Cs, and Cs.
It is composed of tiers. The capacitance of each capacitor is equal to each other, and the inductance of each saturable reactor is set to be the smallest at the higher stage, that is, at the output side.
このような構成で、CIが充電された状態でスイッチS
を閉じると、CIの電荷がインダクタL1を通り、C2
へ流れこむ。With this configuration, when CI is charged, switch S
When closed, the charge on CI passes through inductor L1 and C2
flows into.
C1が充電された後可飽和リアクタし2が、飽和し、イ
ンピーダンスがさがり、電荷は、キャパシタC1へ流れ
る。After C1 is charged, the saturable reactor 2 becomes saturated, the impedance decreases, and the charge flows to the capacitor C1.
そして、このような動作を最終段まで順次行うことによ
って、原波形のエネルギーを保ちながら、電流パルス幅
は順次圧縮され、大電流ピークを有するパルスが得られ
る。Then, by sequentially performing such operations up to the final stage, the current pulse width is sequentially compressed while maintaining the energy of the original waveform, and a pulse having a large current peak is obtained.
〈実施例〉
以下、本発明の具体的実施例を挙げ、本発明をさらに詳
細に説明する。<Example> Hereinafter, the present invention will be explained in further detail by giving specific examples of the present invention.
実施例1
下記のようにして第1図に示される磁心装置1を製造し
た。Example 1 A magnetic core device 1 shown in FIG. 1 was manufactured in the following manner.
まず、第10図に示されるように、非晶質磁性合金薄板
と、絶縁フィルムとを重ねて割型の巻枠6に巻回し、端
部を固定し、内径172ohm、外径212am、厚み
24a+mのトロイダル形状のトロイダル巻回体5を得
た。First, as shown in FIG. 10, an amorphous magnetic alloy thin plate and an insulating film are stacked and wound around a split winding frame 6, the ends are fixed, and the inner diameter is 172 ohm, the outer diameter is 212 am, and the thickness is 24 a+m. A toroidal wound body 5 having a toroidal shape was obtained.
用いた非晶質磁性合金薄板は、原子比組成がC0yx−
Fes −Mnt −s is −Bias 厚さ22
−1幅24mmであった。The amorphous magnetic alloy thin plate used had an atomic composition of C0yx-
Fes -Mnt -s is -Bias Thickness 22
-1 width was 24 mm.
また、絶縁フィルムの材質はポリアミドフィルムであり
、寸法は、厚さ6p、幅28mmであった。Further, the material of the insulating film was a polyamide film, and the dimensions were 6 mm in thickness and 28 mm in width.
そして、巻回時には、非晶質磁性合金薄板に250g、
絶縁フィルム36gのテンションをかけた。When winding, 250g of
A tension of 36 g was applied to the insulating film.
次いで、トロイダル巻回体5を巻枠6からはずし、第1
1図に示される熱処理用治具7を使用してレーストラッ
ク型に挿入した後、窒素雰囲気中にて磁場中熱処理を行
った。Next, the toroidal wound body 5 is removed from the winding frame 6, and the first
After inserting it into a racetrack mold using the heat treatment jig 7 shown in FIG. 1, heat treatment was performed in a magnetic field in a nitrogen atmosphere.
印加磁界は100e、熱処理温度は220℃、保持時間
は2.5時間とした。The applied magnetic field was 100 e, the heat treatment temperature was 220° C., and the holding time was 2.5 hours.
このようにして、中央部に断面矩形形状の貫通孔を有し
、横断面の外形輪郭が平行直線部を有する長円形状であ
るレーストラック形状の巻回体20を得た。In this way, a racetrack-shaped wound body 20 was obtained, which had a through hole with a rectangular cross section in the center and an oval outer contour with parallel straight sections in the cross section.
得られた巻回体20の角形比Br/Bsと、保磁力Hc
とを直流B−H測定装置を用い、最大印加磁界5 0s
にて測定したところ角形比は99%、HcはO,01O
eであった。The squareness ratio Br/Bs of the obtained wound body 20 and the coercive force Hc
Using a DC B-H measurement device, the maximum applied magnetic field was 50 s.
When measured, the squareness ratio was 99%, Hc was O, 01O
It was e.
次いで巻回体20を治具7のレーストラック型からはず
した後、巻回体20にボビン3を嵌装させた。Next, the wound body 20 was removed from the racetrack shape of the jig 7, and then the bobbin 3 was fitted onto the wound body 20.
用いたボビン3は、第2図に示されるようにフェノール
樹脂成形体(ベークライト)製のボビン部材31.33
.35.37をエポキシ系接着剤で接合したものとした
。The bobbin 3 used was a bobbin member 31, 33 made of phenolic resin molded body (Bakelite) as shown in FIG.
.. 35.37 were bonded together using an epoxy adhesive.
この場合、ボビン3の装着は、巻回体20の内側にて、
ボビン部材31.33.35.37を組み立て、各部材
を接合して行った。In this case, the bobbin 3 is installed inside the wound body 20,
The bobbin members 31, 33, 35, and 37 were assembled and each member was joined.
このようにして製造された磁心装置1は、非晶質磁性合
金薄板や絶縁フィルムが均一に巻回されており、巻回体
20には傷がなく、しがも巻回本体2oとボビン3とが
隙間なく嵌合されていた。In the magnetic core device 1 manufactured in this way, the amorphous magnetic alloy thin plate and the insulating film are evenly wound, the wound body 20 has no scratches, and the wound body 2o and the bobbin 3 are uniformly wound. were fitted without any gaps.
また、&ii心装置1の角形比と、Hcとを前記と同様
にして、測定したところ角形比は99%、Hcは0.0
10eであり、磁気特性の劣化はなかった。In addition, when the squareness ratio and Hc of &ii core device 1 were measured in the same manner as above, the squareness ratio was 99%, and Hc was 0.0.
10e, and there was no deterioration in magnetic properties.
〈発明の効果〉
本発明の磁心装置用ボビンを用いれば、巻回体や成形焼
結体や成形体等の軟磁性体のコアを損傷させることなく
、容易に嵌装することができる。<Effects of the Invention> By using the bobbin for a magnetic core device of the present invention, it is possible to easily fit the core of a soft magnetic body such as a wound body, a shaped sintered body, a molded body, etc., without damaging it.
そして、ボビン部材を組み立てるため、ホビンの肉厚を
薄くでき、磁心装置の貫通孔を広くとることができ、し
かも寸法および面精度を高いものとすることができる。Since the bobbin members are assembled, the wall thickness of the hobbin can be made thinner, the through-hole of the magnetic core device can be made wider, and the dimensions and surface accuracy can be made higher.
加えて、精度の高いボビン部材を組み立てるので、コア
に精度よく嵌装できる。In addition, since highly accurate bobbin members are assembled, the core can be fitted with high accuracy.
また、レーストラック形状の磁心装置用ボビンの場合、
組立後の形状は、半円形状の肉厚部と直線状の肉薄部と
からなり、肉薄部は肉厚部で補強されるので強度が高い
。In addition, in the case of racetrack-shaped bobbins for magnetic core devices,
The assembled shape consists of a semicircular thick part and a linear thin part, and the thin part is reinforced by the thick part, so it has high strength.
特に、弾性をもつ磁性合金巻回体を用いた磁心装置では
、巻回体が外力により変形しやすいため、従来の一体型
ボビンでは挿入が困難であるが、挿入が容易となり、巻
回体コアの損傷がより一層減少する。In particular, in magnetic core devices that use elastic magnetic alloy windings, the windings are easily deformed by external forces, which makes insertion difficult with conventional integrated bobbins. damage is further reduced.
そして、非晶質磁性合金等の薄板と絶縁フィルムとがそ
れぞれ均一なテンションにて巻回されているため、巻ゆ
るみがない。Furthermore, since the thin plate of amorphous magnetic alloy or the like and the insulating film are each wound with uniform tension, there is no loosening of the winding.
加えて、熱処理後の巻回体の形状のまま磁心装置を製造
できるため、非晶質磁性合金薄板の曲率を変化させるこ
となく磁心装置を製造できる。 このためコアの磁気特
性を劣化させることがな(、高い角形比等の優れた軟磁
気特性を有する磁心装置が得られる。In addition, since the magnetic core device can be manufactured in the same shape as the wound body after heat treatment, the magnetic core device can be manufactured without changing the curvature of the amorphous magnetic alloy thin plate. Therefore, a magnetic core device having excellent soft magnetic properties such as a high squareness ratio without deteriorating the magnetic properties of the core can be obtained.
また、本発明の磁心装置用ボビンは、従来の一体型のボ
ビンに比べ、寸法および面精度が高く、加工が容易であ
り、かつコストが低い。Moreover, the bobbin for a magnetic core device of the present invention has higher dimensional and surface accuracy, is easier to process, and is lower in cost than conventional one-piece bobbins.
第1図、第3図、第4図、第5図、第6図および第7図
は、それぞれ本発明の磁心装置用ボビンを用いたレース
トラック形状の磁心装置の1例が示される平面図である
。
第2図は、本発明の磁心装置用ボビンの1例が示される
斜視図である。
第8図は、ビス止めにて接合した本発明の磁心装置用ボ
ビンが示される部分斜視図である。
第9図は、本発明の磁心装置用ボビンの形状の1例が示
される斜視図である。
第1O図および第11図は、それぞれ本発明の磁心装置
の製造方法を説明するための平面図である。
第12図は、パルスジェネレータの回路図である。
第13図および第14図は、それぞれ従来の磁心装置用
ボビンを用いたレーストラック形状の磁心装置が示され
る平面図である。
符号の説明
l・・・磁心装置
2・・・コア
20・・・巻回体
21.23・・・曲部
25.27・・・直線部
3・・・磁心装置用ボビン
30.30’ 31.32.
34.34° 35.36.
32’ 33.
37・・・ボビン部材
311、313、321、321゜
323’ 335、337、351.373.3
77・−・凸部
38・・・肉厚部
39・・・肉薄部
4・・・貫通孔
5・・・トロイダル巻回体
6・・・巻枠
7・・・熱処理用治具
71・・・凸部
75・・・貫通孔
8・・・磁性合金薄板
9・・・絶縁フィルム
10・・・ビス
323.
355、FIG. 1, FIG. 3, FIG. 4, FIG. 5, FIG. 6, and FIG. 7 are plan views each showing an example of a racetrack-shaped magnetic core device using the bobbin for a magnetic core device of the present invention. It is. FIG. 2 is a perspective view showing an example of the bobbin for a magnetic core device of the present invention. FIG. 8 is a partial perspective view showing a bobbin for a magnetic core device of the present invention joined with screws. FIG. 9 is a perspective view showing an example of the shape of the bobbin for a magnetic core device of the present invention. FIG. 1O and FIG. 11 are plan views for explaining the method of manufacturing the magnetic core device of the present invention, respectively. FIG. 12 is a circuit diagram of the pulse generator. FIGS. 13 and 14 are plan views showing racetrack-shaped magnetic core devices using conventional bobbins for magnetic core devices, respectively. Explanation of symbols l...Magnetic core device 2...Core 20...Wound body 21.23...Bend portion 25.27...Straight portion 3...Bobbin for magnetic core device 30.30' 31 .32. 34.34° 35.36. 32' 33. 37...Bobbin member 311, 313, 321, 321°323' 335, 337, 351.373.3
77...Convex portion 38...Thick wall portion 39...Thin wall portion 4...Through hole 5...Troidal winding body 6...Winding frame 7...Heat treatment jig 71... - Convex portion 75... Through hole 8... Magnetic alloy thin plate 9... Insulating film 10... Screw 323. 355,
Claims (14)
を有する軟磁性体のコアの内周部に嵌装するボビンであ
って、2以上のボビン部材を接合して、少なくとも前記
コアの内周部と対接する外周面が2以上のボビン部材か
ら形成されるように構成され、中央部に貫通孔を有する
ことを特徴とする磁心装置用ボビン。(1) A bobbin that is fitted into the inner peripheral part of a soft magnetic core having a continuous closed magnetic path around a through-hole having a non-circular cross-section, the bobbin having two or more bobbin members joined to at least the core. 1. A bobbin for a magnetic core device, characterized in that an outer circumferential surface in contact with an inner circumferential portion of the bobbin is formed of two or more bobbin members, and has a through hole in a central portion.
記載の磁心装置用ボビン。(2) The bobbin for a magnetic core device according to claim 1, wherein the core has a racetrack shape.
項1または2に記載の磁心装置用ボビン。(3) The bobbin for a magnetic core device according to claim 1 or 2, wherein the through hole of the bobbin has a rectangular cross section.
ボビン部材から形成される請求項1ないし3のいずれか
に記載の磁心装置用ボビン。(4) The bobbin for a magnetic core device according to any one of claims 1 to 3, wherein the inner circumferential surface constituting the through hole of the bobbin is formed from two or more bobbin members.
ン部材は、前記コアの直線部の内周部のほぼ全長と対接
する一対の肉薄の直線部ボビン部材と、前記コアの曲部
の内周部に対接する一対の肉厚の曲部ボビン部材とから
形成され、これらボビン部材を接合したとき、断面矩形
形状の貫通孔が形成される請求項4に記載の磁心装置用
ボビン。(5) The core has a racetrack shape, and the bobbin member includes a pair of thin straight bobbin members that are in contact with substantially the entire length of the inner circumference of the straight portion of the core, and an inner circumference of the curved portion of the core. 5. The bobbin for a magnetic core device according to claim 4, wherein the bobbin is formed from a pair of thick curved bobbin members that are in contact with the bobbin member, and when these bobbin members are joined, a through hole having a rectangular cross section is formed.
部ボビン部材の肉厚をts、前記曲部ボビン部材の最大
肉厚をtr、としたとき、ts/tcが0.1〜0.5
、tr/tcが0.5〜2である請求項5に記載の磁心
装置用ボビン。(6) When the thickness between the inner and outer circumferences of the core is tc, the thickness of the straight bobbin member is ts, and the maximum thickness of the curved bobbin member is tr, ts/tc is 0. 1-0.5
, tr/tc is 0.5 to 2, the bobbin for a magnetic core device according to claim 5.
曲部ボビン部材間の貫通孔間隙をlとしたとき、ts/
wが0.04〜1、ts/lが0.006〜0.1であ
る請求項6に記載の磁心装置用ボビン。(7) When the through-hole gap between the straight bobbin members is w, and the through-hole gap between the curved bobbin members is l, ts/
The bobbin for a magnetic core device according to claim 6, wherein w is 0.04 to 1 and ts/l is 0.006 to 0.1.
ボビンに、軟磁性体のコアを嵌装したことを特徴とする
磁心装置。(8) A magnetic core device, characterized in that a soft magnetic core is fitted into the bobbin for a magnetic core device according to any one of claims 1 to 7.
8に記載の磁心装置。(9) The magnetic core device according to claim 8, wherein the core is a wound body of a magnetic alloy thin plate.
る請求項9に記載の磁心装置。(10) The magnetic core device according to claim 9, wherein the magnetic alloy thin plate is an amorphous magnetic alloy thin plate.
介して巻回されている請求項9または10に記載の磁心
装置。(11) The magnetic core device according to claim 9 or 10, wherein the magnetic alloy thin plate is wound with a nonmagnetic insulating film interposed therebetween.
持した状態で熱処理し、次いで巻回体に請求項1ないし
7のいずれかに記載の磁心装置用ボビンを嵌装すること
を特徴とする磁心装置の製造方法。(12) After winding the magnetic alloy thin plate, it is heat treated while being held in a non-circular shape, and then the bobbin for a magnetic core device according to any one of claims 1 to 7 is fitted to the wound body. A method for manufacturing a magnetic core device.
る請求項12に記載の磁心装置の製造方法。(13) The method for manufacturing a magnetic core device according to claim 12, wherein the magnetic alloy thin plate is an amorphous magnetic alloy thin plate.
して巻回する請求項12または13に記載の磁心装置の
製造方法。(14) The method for manufacturing a magnetic core device according to claim 12 or 13, wherein the magnetic alloy thin plate is wound with a non-magnetic insulating film interposed therebetween.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2079351A JPH03278503A (en) | 1990-03-28 | 1990-03-28 | Bobbin for magnetic core device, and magnetic core device and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2079351A JPH03278503A (en) | 1990-03-28 | 1990-03-28 | Bobbin for magnetic core device, and magnetic core device and manufacture thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03278503A true JPH03278503A (en) | 1991-12-10 |
Family
ID=13687485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2079351A Pending JPH03278503A (en) | 1990-03-28 | 1990-03-28 | Bobbin for magnetic core device, and magnetic core device and manufacture thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03278503A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008028315A (en) * | 2006-07-25 | 2008-02-07 | Nec Tokin Corp | Winding coil and its manufacturing method |
JP2013074087A (en) * | 2011-09-28 | 2013-04-22 | Hitachi Ltd | Magnetic core and formation method thereof |
-
1990
- 1990-03-28 JP JP2079351A patent/JPH03278503A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008028315A (en) * | 2006-07-25 | 2008-02-07 | Nec Tokin Corp | Winding coil and its manufacturing method |
JP2013074087A (en) * | 2011-09-28 | 2013-04-22 | Hitachi Ltd | Magnetic core and formation method thereof |
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