JP2584158B2 - Method of annealing magnetic core with large magnetostriction and transformer - Google Patents
Method of annealing magnetic core with large magnetostriction and transformerInfo
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- JP2584158B2 JP2584158B2 JP3239439A JP23943991A JP2584158B2 JP 2584158 B2 JP2584158 B2 JP 2584158B2 JP 3239439 A JP3239439 A JP 3239439A JP 23943991 A JP23943991 A JP 23943991A JP 2584158 B2 JP2584158 B2 JP 2584158B2
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- magnetic core
- core
- annealing
- magnetic
- pair
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、磁歪の大きい磁芯の焼
鈍方法および変圧器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for annealing a magnetic core having a large magnetostriction and a transformer.
【０００２】[0002]
【従来の技術】従来、０．３mmの珪素鋼板を巻回してな
る磁芯の焼鈍は、磁歪も０〜４＊１０ -6と小さいので応
力に対して鉄損等の磁気特性の変化が小さく、また磁芯
自体の強度が有るので変形しにくい。このため焼鈍方法
としては図６に示すように、珪素鋼板を巻回してなる磁
芯２８をヨーク部の一面が下面になるように立てて窒素
ガス雰囲気中で８００℃程度の温度で焼鈍している。そ
して磁芯ケース２９を用いて複数個の磁芯２８を積み上
げたりチェーン等による移動の便宜をはかっている。ま
た図７に示すように磁芯２８を寝かせて焼鈍すること
も、磁芯を磁脚部の一面が下面になるように立てて（図
示せず）焼鈍することもある。2. Description of the Related Art Conventionally, a 0.3 mm silicon steel sheet has been wound.
The magnetic core has a magnetostriction of 0 to 4 * 10 -6And so small
Changes in magnetic properties such as iron loss are small with respect to force.
Due to its own strength, it is not easily deformed. For this reason the annealing method
As shown in FIG. 6, a magnetic material formed by winding a silicon steel plate
The core 28 is set up so that one surface of the yoke portion faces the lower surface,
Annealing is performed at a temperature of about 800 ° C. in a gas atmosphere. So
A plurality of magnetic cores 28 using the magnetic core case 29
For convenience of moving by chain or chain. Ma
The core 28 is laid down and annealed as shown in FIG.
Also, set the magnetic core so that one side of the magnetic leg part faces the bottom (Fig.
(Not shown) Sometimes annealing.
【０００３】またこのような珪素鋼板磁芯を用いた変圧
器は、組立時の変形や固定するときの締め付け応力にた
いしても強く、鉄損等の磁気特性が低下しにくい。Further, such a transformer using a silicon steel sheet magnetic core is strong against deformation during assembly and tightening stress when fixing, and magnetic properties such as iron loss are not easily reduced.
【０００４】[0004]
【発明が解決しようとする課題】しかし、非晶質磁性合
金薄帯を巻回してなる磁芯等は低鉄損ではあるけれど
も、磁歪が珪素鋼板の１０倍大きい（３０＊１０-6）の
で応力によって磁気特性が低下するので、また薄帯の厚
さが１０〜５０μｍと薄いため形状変化して磁気特性が
低下しやすい。使用にあたってはその取扱いが難しかっ
た。特に焼鈍時の磁芯状態と変圧器として使用時の磁芯
状態をできるだけ同様にして、磁芯の磁気特性の低下を
小さくし、変圧器の特性バラツキも小さくすることが必
要である。そして再現性よく安定して焼鈍および変圧器
の製造できることが必要である。また磁性合金薄帯を巻
回した磁芯の継ぎ目部は膨らみやすく、焼鈍後に磁芯を
再組立して変圧器としたときの形状の再現性が悪く、変
形や焼鈍磁との形状の差異により磁芯に応力がかかり磁
気特性が低下しやすいという問題がある。However, although a magnetic core formed by winding an amorphous magnetic alloy ribbon has low iron loss, its magnetostriction is ten times larger than that of a silicon steel sheet (30 * 10 -6 ). Since the magnetic properties are reduced by the stress, and since the thickness of the ribbon is as thin as 10 to 50 μm, the shape is changed and the magnetic properties are easily reduced. In use, it was difficult to handle. In particular, it is necessary to make the magnetic core state at the time of annealing and the magnetic core state at the time of use as a transformer as similar as possible so as to reduce the deterioration of the magnetic characteristics of the magnetic core and to reduce the variation in the characteristics of the transformer. In addition, it is necessary that annealing and a transformer can be manufactured stably with good reproducibility. In addition, the seam of the magnetic core wound with a magnetic alloy ribbon is easy to swell, the reproducibility of the shape when the magnetic core is reassembled after annealing and used as a transformer is poor, and due to deformation and the difference in shape from the annealing magnet There is a problem that stress is applied to the magnetic core and the magnetic characteristics are likely to deteriorate.
【０００５】[0005]
【課題を解決するための手段】１．上記の目的を達成す
るために本発明の磁歪の大きい磁芯の焼鈍方法は、磁歪
定数の大きい磁性合金薄帯を巻回しかつ継ぎ目部をヨー
ク部に有する矩形の磁芯と、貫通孔を設けた分割可能な
焼鈍用中芯と、磁芯の高さより高い一対の左右固定材
と、磁芯の幅と同様の長さでかつ磁芯の奥行き（磁性合
金薄帯の幅）より大きい出っ張り部を設けた一対の上下
固定材とを備え、矩形の磁芯の内側に焼鈍用中芯を配設
し、磁芯の外周に保護材を設け、磁芯の外周の磁脚の直
線的な側に一対の左右固定材を配設し、さらに少なくと
も継ぎ目部のあるヨークの積み厚部を押さえつけるよう
に、磁芯の外周のヨークの直線的な側に一対の上下固定
材をその出っ張り部で締め付けるか、または継ぎ目部の
ある側の上下固定材と焼鈍用中芯の貫通孔に配設した固
定材とを締め付けて、焼鈍用中芯，磁芯，左右固定材お
よび上下固定材を一体化して組立てた後、その磁芯のヨ
ーク部の外周の一つが下面になるように立てて上記焼鈍
用中芯の貫通孔に導体を通して通電して磁化焼鈍を行う
こと。[Means for Solving the Problems] In order to achieve the above object, a method for annealing a magnetic core having a large magnetostriction according to the present invention comprises the steps of: winding a magnetic alloy ribbon having a large magnetostriction constant and providing a rectangular magnetic core having a seam portion in a yoke portion, and a through hole. A splittable annealing core, a pair of left and right fixing members higher than the height of the magnetic core, and a protrusion having a length similar to the width of the magnetic core and greater than the depth of the magnetic core (the width of the magnetic alloy ribbon). And a pair of upper and lower fixing members provided with an inner core for annealing disposed inside the rectangular magnetic core, a protective material provided on the outer periphery of the magnetic core, and a linear side of the magnetic leg on the outer periphery of the magnetic core. A pair of left and right fixing members are disposed on the magnetic core, and furthermore, a pair of upper and lower fixing members are fastened to the linear side of the yoke on the outer periphery of the magnetic core with the protruding portions so as to press down at least the thick portion of the yoke having the seam portion. Or, fix the upper and lower fixing materials on the side with the seam and the through holes in the annealing core. After assembling the core, the magnetic core, the left and right fixing members, and the upper and lower fixing members integrally with each other and assembling them, the magnetic core is set up so that one of the outer peripheries of the yoke portion becomes the lower surface, and the above-described annealing is performed. Conducting magnetization annealing by passing electricity through a conductor through the through hole of the core.
【０００６】２．特許請求項１の磁歪の大きい磁芯の焼
鈍方法により焼鈍した磁芯の内周にコアボビンを配設
し、磁芯の外周の磁脚側に一対の上下連結板を配設し、
磁芯の外周のヨーク側に一対の上下金具を配設して、一
体化して組立てた後、その磁芯のヨーク部の外周の一つ
が下面になるように立てたことを特徴とする変圧器。[0006] 2. A core bobbin is provided on the inner periphery of the magnetic core annealed by the method for annealing a magnetic core having a large magnetostriction according to claim 1, and a pair of upper and lower connecting plates are provided on the magnetic leg side on the outer periphery of the magnetic core.
A transformer characterized by disposing a pair of upper and lower metal fittings on the yoke side of the outer periphery of a magnetic core, assembling them integrally, and then erecting one of the outer peripheries of a yoke portion of the magnetic core so as to be a lower surface. .
【０００７】[0007]
【作用】上記した手段によれば、磁歪の大きい変形しや
すい磁芯を焼鈍用芯と左右固定材と上下固定材とで固定
し、膨らみやすい継ぎ目部を押さえるようにし、磁化焼
鈍できるので、焼鈍を再現性よく安定してできるととも
に、磁芯を再組立して変圧器としたとき焼鈍時の形状の
再現が容易に実現できる。また変圧器として使用時の磁
芯状態を焼鈍時の磁芯状態とほぼ同様にできるので、磁
芯の磁気特性の低下を小さくし、変圧器の特性バラツキ
も小さくすることができる。According to the above-mentioned means, the easily deformable magnetic core having a large magnetostriction is fixed with the annealing core, the left and right fixing members and the upper and lower fixing members so as to press the swelling seam portion, and the magnetic annealing can be performed. Can be stably performed with good reproducibility, and when the magnetic core is reassembled into a transformer, the shape at the time of annealing can be easily reproduced. In addition, since the state of the magnetic core when used as a transformer can be made substantially the same as the state of the magnetic core during annealing, a decrease in the magnetic characteristics of the magnetic core can be reduced, and variations in the characteristics of the transformer can also be reduced.
【０００８】[0008]
【実施例】（実施例１）以下本発明の第一実施例につい
て、図１を参照しながら説明する。(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIG.
【０００９】図１は本発明の磁歪定数の大きい磁性合金
薄帯である非晶質磁芯変圧器の例で、焼鈍時の状態を示
す斜視図である。１は非晶質磁性合金薄帯を巻回してな
る矩形の磁芯で１ａは磁脚部、１ｂはヨーク部、２は珪
素鋼板やステンレス等の板よりなる磁芯の外周保護材、
３は貫通孔を設けた内部形状を支持する焼鈍用中芯、４
はステンレスや鉄等よりなる磁芯１の高さより高い一対
の左右固定材、５はステンレスや鉄等よりなる磁芯１の
幅と同様の長さの上下固定材で磁芯１の奥行きより大き
い出っ張り部６を設けており、矩形の磁芯１の内側に焼
鈍用中芯３を配設し、磁芯１の外周の磁脚１ａの直線的
な側に一対の左右固定材４を配設し、さらに継ぎ目部の
あるヨーク（上ヨーク、図示せず）の積み厚部を押さえ
つけるように、磁芯の外周のヨーク１ｂの直線的な側に
一対の上下固定材５をその出っ張り部６でずん切り７と
ナットで締め付けて、焼鈍用中芯，磁芯，左右固定材お
よび上下固定材を一体化して組立てた後、その磁芯１の
ヨーク部１ｂの外周の一つが下面になるように立てて上
記焼鈍用中芯３の貫通孔に導体バーや耐熱電線等の導体
８を通して直流通電して２００Ａ／ｍ以上の磁化をかけ
ながら３００〜４００℃で窒素雰囲気中で焼鈍を行う。FIG. 1 is a perspective view showing an example of an amorphous magnetic core transformer which is a magnetic alloy thin ribbon having a large magnetostriction constant according to the present invention and shows a state at the time of annealing. Reference numeral 1 denotes a rectangular magnetic core formed by winding an amorphous magnetic alloy ribbon, 1a denotes a magnetic leg portion, 1b denotes a yoke portion, 2 denotes a magnetic core outer peripheral protection material made of a plate such as a silicon steel plate or stainless steel,
Reference numeral 3 denotes an annealing core for supporting an inner shape provided with a through hole;
Is a pair of left and right fixing members higher than the height of the magnetic core 1 made of stainless steel, iron, etc., and 5 is an upper and lower fixing material having the same length as the width of the magnetic core 1 made of stainless steel, iron, etc., which is larger than the depth of the magnetic core 1. A protruding portion 6 is provided, an annealing core 3 is disposed inside a rectangular magnetic core 1, and a pair of left and right fixing members 4 are disposed on a linear side of a magnetic leg 1 a on the outer periphery of the magnetic core 1. Further, a pair of upper and lower fixing members 5 are attached to the protruding portions 6 on the linear side of the yoke 1b on the outer periphery of the magnetic core so as to press down the stacked portion of the yoke (upper yoke, not shown) having a joint portion. After assembling the core for annealing, the magnetic core, the left and right fixing members, and the upper and lower fixing members integrally by assembling them with the chopped 7 and nuts, one of the outer peripheries of the yoke portion 1b of the magnetic core 1 becomes the lower surface. DC current is passed through the through hole of the annealing core 3 through a conductor 8 such as a conductor bar or a heat-resistant wire. Carry out the annealing in a nitrogen atmosphere at 300~400 ℃ while applying the magnetization of more than 200A / m in.
【００１０】図３において、焼鈍用中芯１１は厚さ８〜
２０mmのアルミニウムやステンレスや鉄等よりなる分割
可能な構成で、円形の磁芯を成形することによって矩形
の磁芯１とする成形材としても使用できる。１１ｂはそ
の分割部で、テーパ形状にしている。In FIG. 3, the annealing core 11 has a thickness of 8 to 8 mm.
It is a dividable configuration made of aluminum, stainless steel, iron or the like of 20 mm, and can be used as a molding material for forming a rectangular magnetic core 1 by molding a circular magnetic core. Reference numeral 11b denotes a divided portion having a tapered shape.
【００１１】図４は磁芯構造を示し、１２は変圧器とし
たときのアルミニウムやステンレスや鉄等よりなるコア
ボビンで、磁芯の内周部に配設し、磁芯は磁気特性の良
い構造である複数枚で厚さ０．３〜３mmのブロック１３
を構成しそれをオーバーラップしたものを順次ずらして
いく構成とし、膨らみを押さえるようにしている。１４
はオーバーラップのときの巻終わりと次のブロックの巻
始めとのずれの空隙部である。FIG. 4 shows a magnetic core structure. Numeral 12 denotes a core bobbin made of aluminum, stainless steel, iron or the like when used as a transformer, which is disposed on the inner peripheral portion of the magnetic core. A plurality of blocks 13 having a thickness of 0.3 to 3 mm
And overlapping ones are sequentially shifted so as to suppress bulging. 14
Is the gap between the end of the winding when overlapping and the beginning of the next block.
【００１２】（実施例２）本発明の第二実施例につい
て、図２を参照しながら説明する。図２において、矩形
の磁芯１の内側に焼鈍用中芯１１を配設し、磁芯１の外
周の磁脚の直線的な側に一対の左右固定材４を配設し、
さらに継ぎ目部９のある上ヨークの積み厚部を押さえつ
けるように、磁芯の外周の上ヨークの上下固定材５の出
っ張り部６と焼鈍用中芯１１の貫通孔１１ａに配設した
厚さ８〜２０mmのステンレスや鉄等よりなる固定材１０
をずん切りとナットで締め付けて、焼鈍用中芯，磁芯，
左右固定材および上下固定材を一体化して組立てた後磁
化焼鈍をする。(Embodiment 2) A second embodiment of the present invention will be described with reference to FIG. In FIG. 2, an annealing core 11 is provided inside a rectangular magnetic core 1, and a pair of left and right fixing members 4 are provided on a linear side of a magnetic leg on the outer periphery of the magnetic core 1.
Further, the thickness 8 provided in the projecting portion 6 of the upper and lower fixing members 5 of the upper yoke on the outer periphery of the magnetic core and the through hole 11a of the middle core 11 for annealing so as to press down the thick portion of the upper yoke having the joint portion 9. Fixing material 10 of up to 20 mm of stainless steel or iron
And tighten it with nuts to obtain a medium core for annealing, a magnetic core,
After the left and right fixing members and the upper and lower fixing members are integrated and assembled, magnetization annealing is performed.
【００１３】（実施例３）本発明の第三実施例につい
て、図５を参照しながら説明する。図５において、
（ａ）は正面図の部分断面図で（ｂ）は側面図の部分断
面図であり、１６は実施例１，２の磁歪の大きい磁芯の
焼鈍方法により焼鈍した磁芯、１７はその内周に配設し
たコアボビン、１８は磁芯１６の外周保護材、１９は樹
脂やプレスボード等よりなるコイル支持材、一対の上下
金具として２０ａは吊下げ部２１を設けた上部金具で２
０ｂは下部金具、２４はコイルで磁芯とコイル間を支持
するゴムや樹脂やプレスボード等の絶縁物の支持スペー
サ２５で固定支持され、２７は磁芯１６と上部金具２０
ａおよび下部金具２０ｂの間に配設するポリエチレンテ
レフタレート（ＰＥＴ）等の織布マットや空隙を設けた
紙等やシリコンゴム等の弾力性のある緩衝材Ａ、２６は
磁芯１６とコイル支持材１９の間に配設する２７と同様
の緩衝材Ｂ、１５は変圧器を固定する器体バンド、２２
は上下連結板で２３の金具で固定する。磁芯１６を緩衝
材Ａ２７を介して上部金具２０ａと下部金具２０ｂとコ
アボビン１６と支持スペーサ２５とコイル２４と器体バ
ンド１５で一体固定して締め付ける。その後全体の形状
を維持するために上下連結板２３で固定する。一方コイ
ル２４は磁芯１６にコイルの重量がかからないように上
部金具２０ａと下部金具２０ｂとコイル支持材１９で剛
体的に固定する。このようにすれば焼鈍時の左右固定
材，上下固定材，焼鈍用中芯が各々変圧器構成時の上下
連結板、上金具と下金具、コアボビンに対応し、さらに
同様の力のかかり方がするので焼鈍時の磁気特性が低下
しにくい。特に焼鈍時の磁芯状態と使用時の磁芯状態が
ほぼ同様にできるため、変圧器の応力による影響は焼鈍
時にできるだけ小さくなるようにできるので、磁歪が大
きくても磁気特性の低下が小さくできる。(Embodiment 3) A third embodiment of the present invention will be described with reference to FIG. In FIG.
(A) is a partial cross-sectional view of a front view, (b) is a partial cross-sectional view of a side view, 16 is a magnetic core annealed by the method of annealing a magnetic core having large magnetostriction in Examples 1 and 2, and 17 is a magnetic core among them. A core bobbin disposed around the circumference, 18 is an outer peripheral protection material of the magnetic core 16, 19 is a coil support material made of resin, press board, or the like, and 20a is a pair of upper and lower metal fittings, an upper metal fitting provided with a hanging portion 21.
Reference numeral 0b denotes a lower metal fitting, 24 denotes a coil, which is fixedly supported by a support spacer 25 made of an insulating material such as rubber or resin or a press board for supporting between the magnetic core and the coil, and 27 denotes a magnetic core 16 and the upper metal fitting 20.
a and 26 are provided between the lower metal fitting 20a and the lower metal fittings 20b. A woven fabric mat such as polyethylene terephthalate (PET), elastic paper cushioning material A such as paper with a gap, or silicone rubber is used for the magnetic core 16 and the coil supporting material. A cushioning material B, 15 similar to 27 provided between 19 and 19 is a body band for fixing a transformer, 22
Is an upper and lower connecting plate and is fixed with 23 brackets. The magnetic core 16 is integrally fixed with the upper metal fitting 20a, the lower metal fitting 20b, the core bobbin 16, the support spacer 25, the coil 24, and the body band 15 via the cushioning material A27 and tightened. Thereafter, it is fixed by the upper and lower connecting plates 23 in order to maintain the entire shape. On the other hand, the coil 24 is rigidly fixed to the magnetic core 16 by the upper metal fitting 20a, the lower metal fitting 20b, and the coil support 19 so that the weight of the coil is not applied. In this way, the left and right fixing members, the upper and lower fixing members, and the core for annealing correspond to the upper and lower connecting plates, the upper and lower metal fittings, and the core bobbin in the transformer configuration, respectively. Therefore, the magnetic properties during annealing are not easily reduced. In particular, since the state of the magnetic core at the time of annealing and the state of the magnetic core at the time of use can be made almost the same, the influence of the stress of the transformer can be made as small as possible at the time of annealing. .
【００１４】[0014]
【発明の効果】１．以上の説明から明らかなように、本
発明の焼鈍方法は磁芯の形状を一定に保ち、安定して容
易に製造再現できる方法で有り、磁気特性の低下を小さ
くできる。また変圧器の特性バラツキを小さくできる。Advantages of the Invention As is clear from the above description, the annealing method of the present invention is a method in which the shape of the magnetic core is kept constant, the production can be stably and easily reproduced, and the deterioration of the magnetic characteristics can be reduced. Further, variation in characteristics of the transformer can be reduced.
【００１５】２．磁芯形状を成形しながら焼鈍するの
で、膨らみやすい磁性合金薄帯を巻回した磁芯の継ぎ目
部の積み厚さを押さえて、磁芯を再組立して変圧器とし
たときの形状の変化を押さえる効果がある。2. Since the core is annealed while being formed, the thickness of the seam of the magnetic core wound with a swellable magnetic alloy ribbon is suppressed, and the shape change when the magnetic core is reassembled into a transformer Has the effect of holding down.
【００１６】３．焼鈍時の磁芯状態と使用時の磁芯状態
がほぼ同様にできるため、変圧器の応力による影響は焼
鈍時にできるだけ小さくなるようにできるので、磁歪が
大きくても磁気特性の低下が小さくできる。3. Since the state of the magnetic core at the time of annealing and the state of the magnetic core at the time of use can be made almost the same, the influence of the stress of the transformer can be made as small as possible at the time of annealing. Therefore, even if the magnetostriction is large, the deterioration of the magnetic properties can be reduced.
【図１】本発明の第一の実施例の焼鈍時の状態を示す斜
視図FIG. 1 is a perspective view showing a state at the time of annealing according to a first embodiment of the present invention.
【図２】本発明の第二の実施例の焼鈍時の状態を示す正
面図FIG. 2 is a front view showing a state at the time of annealing in a second embodiment of the present invention.
【図３】本発明の焼鈍用中芯を示す斜視図FIG. 3 is a perspective view showing an annealing core of the present invention.
【図４】本発明の変圧器の磁芯構造を示す正面図FIG. 4 is a front view showing a magnetic core structure of the transformer of the present invention.
【図５】（ａ）は本発明の変圧器の構造を示す正面図の
部分断面図 （ｂ）は本発明の変圧器の構造を示す側面図の部分断面
図FIG. 5 (a) is a partial cross-sectional view of the front view showing the structure of the transformer of the present invention. FIG. 5 (b) is a partial cross-sectional view of the side view showing the structure of the transformer of the present invention.
【図６】第一の従来例の焼鈍時の状態を示す正面図FIG. 6 is a front view showing a state at the time of annealing of the first conventional example.
【図７】第二の従来例の焼鈍時の状態を示す正面図FIG. 7 is a front view showing a state at the time of annealing of a second conventional example.
１，１６ 磁歪定数の大きい磁芯 ３，１１ 焼鈍用中芯 ４ 左右固定材 ５ 上下固定材 ６ 出っ張り部 １０ 固定材 １５ 器体バンド １７ コアボビン ２０ａ，２０ｂ 上，下金具 ２２ 上下連結板 ２４ コイル 1, 16 Magnetic core having large magnetostriction constant 3, 11 Core for annealing 4 Left and right fixing material 5 Upper and lower fixing material 6 Protrusion 10 Fixing material 15 Instrument band 17 Core bobbins 20a, 20b Upper and lower fittings 22 Upper and lower connecting plates 24 Coil
Claims (2)
つ継ぎ目部をヨーク部に有する矩形の磁芯と、貫通孔を
設けた分割可能な焼鈍用中芯と、磁芯の高さより高い一
対の左右固定材と、磁芯の幅と同様の長さでかつ磁芯の
奥行き（磁性合金薄帯の幅）より大きい出っ張り部を設
けた一対の上下固定材とを備え、矩形の磁芯の内側に焼
鈍用中芯を配設し、磁芯の外周に保護材を設け、磁芯の
外周の磁脚の直線的な側に一対の左右固定材を配設し、
さらに少なくとも継ぎ目部のあるヨークの積み厚部を押
さえつけるように、磁芯の外周のヨークの直線的な側に
一対の上下固定材をその出っ張り部で締め付けるか、ま
たは継ぎ目部のある側の上下固定材と焼鈍用中芯の貫通
孔に配設した固定材とを締め付けて、焼鈍用中芯，磁
芯，左右固定材および上下固定材を一体化して組立てた
後、その磁芯のヨーク部の外周の一つが下面になるよう
に立てて上記焼鈍用中芯の貫通孔に導体を通して通電し
て磁化焼鈍を行うことを特徴とする磁歪の大きい磁芯の
焼鈍方法。1. A rectangular magnetic core wound with a magnetic alloy ribbon having a large magnetostriction constant and having a seam portion in a yoke portion, a dividable annealing core having a through hole, and a height higher than the height of the magnetic core. A rectangular magnetic core including a pair of left and right fixing members, and a pair of upper and lower fixing members provided with protrusions having a length similar to the width of the magnetic core and greater than the depth of the magnetic core (the width of the magnetic alloy ribbon); The core for annealing is arranged inside the, the protective material is provided on the outer circumference of the magnetic core, and a pair of left and right fixing materials are provided on the linear side of the magnetic legs on the outer circumference of the magnetic core,
Further, a pair of upper and lower fixing members are tightened with a protruding portion on the linear side of the yoke on the outer periphery of the magnetic core so as to press down at least the thick portion of the yoke with the seam portion, or the upper and lower fixing on the side with the seam portion After tightening the material and the fixing material provided in the through hole of the annealing core, the annealing core, the magnetic core, the left and right fixing materials, and the upper and lower fixing materials are integrated and assembled, and then the yoke portion of the magnetic core is assembled. A method for annealing a magnetic core having a large magnetostriction, wherein the magnetic core is subjected to magnetization annealing by passing a conductor through a through-hole of the annealing core so that one of the outer circumferences faces the lower surface.
法により焼鈍した磁芯の内周にコアボビンを配設し、磁
芯の外周の磁脚側に一対の上下連結板を配設し、磁芯の
外周のヨーク側に一対の上下金具を配設して、一体化し
て組立てた後、その磁芯のヨーク部の外周の一つが下面
になるように立てたことを特徴とする変圧器。2. A core bobbin is provided on the inner periphery of a magnetic core annealed by the method for annealing a magnetic core having a large magnetostriction according to claim 1, and a pair of upper and lower connecting plates are provided on a magnetic leg side on the outer periphery of the magnetic core. Then, a pair of upper and lower metal fittings are arranged on the yoke side of the outer periphery of the magnetic core, integrated and assembled, and then one of the outer peripheries of the yoke portion of the magnetic core stands upright. Transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3239439A JP2584158B2 (en) | 1991-09-19 | 1991-09-19 | Method of annealing magnetic core with large magnetostriction and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3239439A JP2584158B2 (en) | 1991-09-19 | 1991-09-19 | Method of annealing magnetic core with large magnetostriction and transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0582372A JPH0582372A (en) | 1993-04-02 |
| JP2584158B2 true JP2584158B2 (en) | 1997-02-19 |
Family
ID=17044791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3239439A Expired - Fee Related JP2584158B2 (en) | 1991-09-19 | 1991-09-19 | Method of annealing magnetic core with large magnetostriction and transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2584158B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3868676B2 (en) * | 1999-08-19 | 2007-01-17 | 東芝エフエーシステムエンジニアリング株式会社 | Winding core transformer |
| CN109378169B (en) * | 2018-11-19 | 2024-03-12 | 深圳市京泉华科技股份有限公司 | Reactor with a reactor body |
-
1991
- 1991-09-19 JP JP3239439A patent/JP2584158B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0582372A (en) | 1993-04-02 |
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