JPH0786052A - Three-phase amorphous three-leg winding core, manufacture thereof and transformer using the same - Google Patents
Three-phase amorphous three-leg winding core, manufacture thereof and transformer using the sameInfo
- Publication number
- JPH0786052A JPH0786052A JP5231231A JP23123193A JPH0786052A JP H0786052 A JPH0786052 A JP H0786052A JP 5231231 A JP5231231 A JP 5231231A JP 23123193 A JP23123193 A JP 23123193A JP H0786052 A JPH0786052 A JP H0786052A
- Authority
- JP
- Japan
- Prior art keywords
- core
- cores
- legs
- pair
- leg
- 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.)
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Links
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- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、三相巻鉄心変圧器に係
り、特にアモルファス磁性薄帯を用いた三相三脚巻鉄心
変圧器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-phase winding core transformer, and more particularly to a three-phase three-leg winding core transformer using an amorphous magnetic ribbon.
【0002】[0002]
【従来の技術】三相三脚鉄心をアモルファス金属薄帯を
用いて作る場合は特開昭62−249407号公報に示
す如く積鉄心で作られている。一方、けい素鋼帯のよう
に割れが発生しない磁性材料で三脚巻鉄心を製造する場
合は、特公昭39−9506号公報に記載のように、内
側鉄心と外側鉄心を個別に製造し、焼鈍した後に組合せ
ている。2. Description of the Related Art When a three-phase three-leg iron core is made of an amorphous metal ribbon, it is made of a laminated iron core as shown in JP-A-62-249407. On the other hand, in the case of manufacturing a tripod core using a magnetic material that does not cause cracking, such as a silicon steel strip, as described in Japanese Patent Publication No. 39950/39, the inner core and the outer core are individually manufactured and annealed. After doing the combination.
【0003】[0003]
【発明が解決しようとする課題】三相三脚鉄心をアモル
ファス金属薄帯を用いて積鉄心で作る場合は接合部が多
くなり鉄損が悪化するという問題がある。従来のけい素
鋼帯を用いた三相三脚巻鉄心のように個別に内外鉄心を
製作する技術を単にアモルファス鉄心に適用した場合、
内側鉄心および外側鉄心のそれぞれで励磁焼鈍をする必
要が生じるとともに、焼鈍後のアモルファス金属は非常
に脆いため焼鈍後の組合せ時に鉄心の破損や破片の大量
発生という問題がある。When a three-phase three-leg iron core is made of a laminated iron core using an amorphous metal ribbon, there is a problem that the number of joints increases and the iron loss deteriorates. When a technique for individually manufacturing inner and outer cores such as a three-phase tripod core using a conventional silicon steel strip is simply applied to an amorphous core,
Excitation annealing must be performed on each of the inner core and the outer core, and since the amorphous metal after annealing is extremely brittle, there is a problem that the cores are damaged and a large amount of fragments are generated during the combination after annealing.
【0004】又、鉄心をコイルに挿入する際、アモルフ
ァス鉄心では、焼鈍したものをそのままバラすことなく
一度に挿入するため、初めに入れる一方は容易にコイル
と組合せが可能であるが、内側鉄心の他方のもの及び、
外側鉄心を入れるために、各鉄心間に余裕を必要とす
る。この場合はコイルの鉄心挿入部を大きくする必要が
あり全体が大きくなる。又、三相一括で励磁焼鈍する場
合、内側鉄心の中央コア部に流れる磁界は左右の電流に
より発生する磁界で打ち消すようになるため励磁焼鈍が
困難となる。When the iron core is inserted into the coil, the amorphous iron core is annealed and is inserted at a time without being disassembled. Therefore, the first one can be easily combined with the coil, but the inner iron core can be easily combined. The other of and
A space is required between the cores to accommodate the outer cores. In this case, it is necessary to make the iron core insertion portion of the coil large, and the entire size becomes large. Further, when exciting annealing is performed in three phases at once, the magnetic field flowing in the central core portion of the inner core is canceled by the magnetic fields generated by the left and right currents, which makes excitation annealing difficult.
【0005】本発明の目的は、焼鈍後の組合せ時に鉄心
の破損や破片の大量発生を防止できる三相アモルファス
三脚巻鉄心、およびその製造方法、およびそれを用いた
三相アモルファス三脚巻鉄心変圧器を提供することにあ
る。An object of the present invention is to provide a three-phase amorphous tripod core which can prevent the core from being damaged and a large amount of debris generated during the combination after annealing, a method for producing the same, and a three-phase amorphous tripod core transformer using the same. To provide.
【0006】[0006]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、三相アモルファス三脚巻鉄心を、アモル
ファス磁性薄帯が積層されて一対の脚部と一対のヨーク
とこれらの脚部とヨークに囲まれた窓部を有するよう矩
形に成形され焼鈍されてそれぞれの脚部の一方同士が隣
接するよう配置された2個の内側鉄心と、アモルファス
磁性薄帯が積層されて一対の脚部と一対のヨークとこれ
らの脚部とヨークに囲まれた窓部を有するよう矩形に成
形され内側鉄心と一体に焼鈍されて2個の内側鉄心の外
周を囲むよう配置された外側鉄心で構成したものであ
る。SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a three-phase amorphous tripod winding core having a pair of legs, a pair of yokes, and a pair of legs formed by laminating amorphous magnetic ribbons. And two yokes that are formed into a rectangular shape having a window surrounded by a yoke and are annealed so that one of the legs is adjacent to each other, and a pair of legs that are laminated with an amorphous magnetic ribbon. Portion, a pair of yokes, and an outer iron core that is formed into a rectangular shape having a window surrounded by these legs and a yoke, is annealed integrally with the inner iron core, and is arranged so as to surround the outer circumferences of the two inner iron cores. It was done.
【0007】また、本発明は、この鉄心を製造するに当
り、アモルファス磁性薄帯を積層して一対の脚部と一対
のヨークとこれらの脚部とヨークに囲まれた窓部を有す
るよう矩形に成形して2個の内側鉄心を形成し、これら
の2個の内側鉄心をそれぞれの脚部の一方同士が隣接す
るよう配置し、この2個の内側鉄心を成形型にしてアモ
ルファス磁性薄帯を積層して一対の脚部と一対のヨーク
とこれらの脚部とヨークに囲まれた窓部を有するよう矩
形に成形して外側鉄心を形成し、これらの内側鉄心と外
側鉄心を一体として励磁焼鈍する工程により製造するも
のである。Further, in manufacturing the iron core of the present invention, the amorphous magnetic ribbon is laminated to form a rectangular shape having a pair of legs, a pair of yokes, and a window surrounded by the legs and the yoke. To form two inner cores, and these two inner cores are arranged so that one of their legs is adjacent to each other, and these two inner cores are used as a molding die to form an amorphous magnetic ribbon. Are laminated to form an outer core by forming a rectangular shape having a pair of legs, a pair of yokes, and a window surrounded by the legs and the yoke, and the inner core and the outer core are integrally excited. It is manufactured by an annealing step.
【0008】さらに本発明は、アモルファス磁性薄帯が
積層されて一対の脚部と一対のヨークとこれらの脚部と
ヨークに囲まれた窓部を有するよう矩形に成形され焼鈍
されてそれぞれの脚部の一方同士が隣接するよう配置さ
れた2個の内側鉄心と、アモルファス磁性薄帯が積層さ
れて一対の脚部と一対のヨークとこれらの脚部とヨーク
に囲まれた窓部を有するよう矩形に成形され焼鈍されて
2個の内側鉄心の外周を囲むよう配置された外側鉄心
と、この外側鉄心の一方の脚部およびこの脚部の内側に
配置された内側鉄心の脚部が嵌挿された第1のコイル
と、外側鉄心の他方の脚部およびこの脚部の内側に配置
された内側鉄心の脚部が嵌挿された第2のコイルと、隣
接するよう配置された内側鉄心の脚部が嵌挿された第3
のコイルにより三相アモルファス三脚巻鉄心変圧器を構
成したものである。Further, according to the present invention, the amorphous magnetic ribbons are laminated and formed into a rectangular shape having a pair of leg portions, a pair of yokes, and a window portion surrounded by the leg portions and the yokes, and each leg is annealed. The two inner cores are arranged so that one of the parts is adjacent to each other, the amorphous magnetic ribbons are laminated to have a pair of legs, a pair of yokes, and a window surrounded by these legs and the yoke. The outer iron core, which is formed into a rectangular shape and annealed to surround the outer circumferences of the two inner iron cores, one leg of the outer iron core and the leg of the inner iron core arranged inside the leg are fitted and inserted. Of the inner core arranged so as to be adjacent to the second coil in which the other leg of the outer core and the leg of the inner core arranged inside this leg are inserted. Third with legs inserted
This is a three-phase amorphous tripod core transformer made up of the coil.
【0009】[0009]
【作用】内側鉄心および外側鉄心はアモルファス磁性薄
帯が積層されているので接合部が少なく、鉄損の悪化が
防止される。内側鉄心は2個設けられて矩形に成形さ
れ、それぞれの脚部の一方同士が隣接するよう配置され
てこれらの内側鉄心の外周を囲むよう外側鉄心が配置さ
れるので三脚鉄心を形成することができる。また、2個
の内側鉄心はそれぞれの脚部の一方同士が隣接するよう
配置されているので、この2個の内側鉄心を成形型にし
てその外周にアモルファス磁性薄帯を積層して外側鉄心
を形成することができ金型を不要にすることができて製
造設備のコストを低減できる。また、これらの内側鉄心
と外側鉄心を一体として励磁焼鈍するので焼鈍後の内側
鉄心と外側鉄心の組立作業が不要となり、組合せ時に鉄
心の破損や破片の大量発生を防止することができる。Since the inner core and the outer core are laminated with amorphous magnetic ribbons, the number of joints is small and deterioration of iron loss is prevented. Two inner cores are provided and formed into a rectangular shape. One of the legs is arranged adjacent to each other, and the outer core is arranged so as to surround the outer circumference of these inner cores, so that a tripod core can be formed. it can. Further, since the two inner cores are arranged such that one of the legs is adjacent to each other, the two inner cores are used as a molding die and the amorphous magnetic ribbon is laminated on the outer periphery thereof to form the outer cores. It can be formed and a mold can be eliminated, and the cost of manufacturing equipment can be reduced. Further, since the inner iron core and the outer iron core are integrally annealed and annealed, the assembling work of the inner iron core and the outer iron core after the annealing becomes unnecessary, and it is possible to prevent the iron core from being broken and a large amount of debris to be generated at the time of combination.
【0010】[0010]
【実施例】以下本発明の実施例を図1〜図7により説明
する。図1〜図3は強磁性を有するアモルファス金属の
帯状の薄板(以下アモルファス磁性薄帯)を用いて矩形
の芯金5、6の周りにそれぞれ内側鉄心2、1を形成
し、この内側鉄心2、1の外周に外側鉄心7を形成する
工程を示す。Embodiments of the present invention will be described below with reference to FIGS. 1 to 3 show inner cores 2 and 1 formed around rectangular cored bars 5 and 6 using a strip-shaped thin plate of amorphous metal having ferromagnetism (hereinafter referred to as amorphous magnetic strip). 1 shows the step of forming the outer core 7 around the outer circumference of 1.
【0011】内側鉄心1、2はそれぞれ矩形の芯金6、
5の周りにアモルファス磁性薄帯を積層して一対の脚部
1a、2aと一対のヨーク1b、2bとこれらの脚部と
ヨークに囲まれた窓部1c、2cを有するよう矩形に成
形される。これらのあらかじめ形成された内側鉄心1、
2を図1に示すように、逆U字状に吊下げてそれぞれの
脚部の一方同士が隣接するよう配置し、中央コア部が隣
接する構成とする。本実施例では各内側鉄心の最内周
は、アモルファス磁性薄帯を保護する目的で金属帯3が
巻回されている。金属帯3としては、けい素鋼帯又は、
容易に変形する厚みの鋼帯やステンレス鋼帯が用いられ
る。又、内鉄心の最外周は非磁性材4で覆われている。
非磁性材4としては、ステンレス鋼帯が適当である。The inner cores 1 and 2 are rectangular cored bars 6 and 6, respectively.
Amorphous magnetic ribbon is laminated around 5 to form a rectangular shape having a pair of legs 1a and 2a, a pair of yokes 1b and 2b, and windows 1c and 2c surrounded by these legs and the yoke. . These preformed inner cores 1,
As shown in FIG. 1, the legs 2 are hung in an inverted U shape so that one of the legs is adjacent to each other, and the central cores are adjacent to each other. In the present embodiment, the metal strip 3 is wound around the innermost circumference of each inner core for the purpose of protecting the amorphous magnetic ribbon. As the metal strip 3, a silicon steel strip or
A steel strip or a stainless steel strip having a thickness that is easily deformed is used. The outermost circumference of the inner core is covered with the non-magnetic material 4.
A stainless steel strip is suitable as the non-magnetic material 4.
【0012】このように配置された内側鉄心1、2の外
周に、内側鉄心1、2を成形型にしてアモルファス磁性
薄帯を逆U字状に積層して外側鉄心7を形成する。内側
鉄心1、2が矩形であるので外側鉄心7も内側鉄心1、
2の外周に倣って矩形に成形される。外側鉄心7も一対
の脚部7aと一対のヨーク7bとこれらの脚部とヨーク
に囲まれた窓部7bを有し、この窓部7bの内側に内側
鉄心1、2が配置される。本実施例では、外側鉄心7の
最内周を保護するために金属帯8がその最内周に巻回さ
れる。アモルファス磁性薄帯を所要枚数積層した後、金
属帯9を巻回して最外周を覆う。金属帯8、9は外側鉄
心7のアモルファス磁性薄帯を保護する目的で巻回さ
れ、これらの材質としては金属帯3と同様にけい素鋼帯
又は、容易に変形する厚みの鋼帯やステンレス鋼帯が用
いられる。On the outer periphery of the inner cores 1 and 2 arranged in this way, the outer core 7 is formed by stacking amorphous magnetic ribbons in an inverted U shape using the inner cores 1 and 2 as a molding die. Since the inner cores 1 and 2 are rectangular, the outer core 7 is also the inner core 1,
It is formed into a rectangle following the outer circumference of 2. The outer iron core 7 also has a pair of leg portions 7a, a pair of yokes 7b, and a window portion 7b surrounded by these leg portions and the yoke, and the inner iron cores 1 and 2 are arranged inside the window portion 7b. In this embodiment, the metal strip 8 is wound around the innermost periphery of the outer core 7 in order to protect the innermost periphery thereof. After laminating the required number of amorphous magnetic ribbons, the metal ribbon 9 is wound to cover the outermost circumference. The metal strips 8 and 9 are wound for the purpose of protecting the amorphous magnetic thin strip of the outer iron core 7, and the material thereof is the same as the metal strip 3, that is, a silicon steel strip, or a steel strip or stainless steel having a thickness that easily deforms. Steel strip is used.
【0013】内側鉄心1、2および外側鉄心7のそれぞ
れの逆U字の開口部はそれぞれヨークの接合部1d、2
d、7dとなる。外側鉄心7が所定積層数になった所で
内側鉄心1、2および外側鉄心7のそれぞれの逆U字の
開口部が閉じられ内側鉄心1、2および外側鉄心7のヨ
ークが接合される。この工程を図2、図3により説明す
る。The inverted U-shaped openings of the inner iron cores 1 and 2 and the outer iron core 7 are connected to the yoke joints 1d and 2 respectively.
d and 7d. When the outer cores 7 have a predetermined number of layers, the U-shaped openings of the inner cores 1 and 2 and the outer cores 7 are closed, and the inner cores 1 and 2 and the yokes of the outer cores 7 are joined. This step will be described with reference to FIGS.
【0014】まず、図2に示すように内側鉄心1、2と
外側鉄心7の脚部と接合部のない方のヨークを金具1
1,12,13とボルト10で締付ける。その後接合部
を閉じてヨークとし図3に示すように内側鉄心1、2と
外側鉄心7のヨークも金具14で締める。これにより内
側鉄心1、2と外側鉄心7は一体となり、この状態で図
4に示す励磁焼鈍の工程に送られる。First, as shown in FIG. 2, the inner cores 1 and 2 and the outer core 7 are connected to the legs 1 and 2 of the yoke which is not joined to the metal fitting 1.
Tighten with 1, 12 and 13 and bolt 10. Thereafter, the joint is closed to form a yoke, and the yokes of the inner cores 1 and 2 and the outer core 7 are also fastened with the metal fittings 14 as shown in FIG. As a result, the inner cores 1 and 2 and the outer core 7 are integrated, and in this state, they are sent to the exciting annealing step shown in FIG.
【0015】図4に示す励磁焼鈍工程では、外側鉄心7
と一体となった2個の内側鉄心1、2のそれぞれの窓部
内に同方向から直流を流して励磁焼鈍を行なう。具体的
には、窓部に導体15,16を通し、この導体15,1
6に電流の向きを同方向とした直流Iを流して磁場中焼
鈍を行う。このようにすることにより導体を流れる直流
により磁界が発生し焼鈍が行なわれる。内側鉄心1、2
の隣接した脚部により構成された中央コアー部には左右
で消磁する方向に磁界が発生するが、本実施例では内側
鉄心1、2の最外周は非磁性材4のため磁束が通過しに
くいので磁束は透磁率の高い内外の鉄心内を流れること
になる。又、周長の長い外側鉄心7に対しては、左右の
電流の合成電流による磁界で励磁することになる。In the excitation annealing process shown in FIG. 4, the outer core 7
Excitation annealing is performed by passing a direct current from the same direction into the respective window portions of the two inner cores 1 and 2 that are integrated with. Specifically, the conductors 15 and 16 are passed through the window and the conductors 15 and 1 are
A direct current I in which the direction of current flow is the same is applied to 6 to perform annealing in a magnetic field. By doing so, a magnetic field is generated by the direct current flowing through the conductor and annealing is performed. Inner iron core 1, 2
A magnetic field is generated in the direction of demagnetization on the left and right in the central core portion formed by the adjacent legs of the magnetic core. Therefore, the magnetic flux flows inside the inner and outer iron cores having high magnetic permeability. Further, the outer core 7 having a long circumference is excited by the magnetic field generated by the combined current of the left and right currents.
【0016】焼鈍が終了すると、鉄心についている金具
11,12,13とボルト10および芯金5,6を鉄心
から取り外し、図5にハッチングで示すように接合部の
あるヨーク部以外の内側鉄心および外側鉄心の端面を同
時に保護部材としての保護材17で包む。接合部のある
ヨーク部にはヨークの接合部を露出させる露出部が形成
される。保護材17の材質としてはクラフト紙、ポリエ
ステルフィルム(PET)またはクラフト紙とPETの
複合材等が使用される。この状態での図5のAA断面、
すなわち三脚鉄心の脚部の断面を図6に示す。このよう
に鉄心の脚部は一体となった内側鉄心1、2と外側鉄心
7の周囲が保護材17で覆われるためコイルを嵌挿する
ときに鉄心の破損を防止できる。図6は内側鉄心と外側
鉄心が組み合わされた部分の断面を示しているが、内側
鉄心の脚部同士が組み合わされた三脚鉄心の中央脚も同
様にその周囲が保護材17で覆われ、同様の作用効果を
奏する。保護材はヨークの接合部を露出させる露出部を
接合部のあるヨークに有するのでこの部分で鉄心のヨー
クの接合部を開口してコイルを嵌挿することができる。When the annealing is completed, the metal fittings 11, 12, 13 attached to the iron core, the bolt 10 and the cores 5, 6 are removed from the iron core, and as shown by hatching in FIG. At the same time, the end surface of the outer core is wrapped with a protective material 17 as a protective member. An exposed portion that exposes the joined portion of the yoke is formed on the yoke portion having the joined portion. As the material for the protective material 17, kraft paper, polyester film (PET), a composite material of kraft paper and PET, or the like is used. AA cross section of FIG. 5 in this state,
That is, the cross section of the leg portion of the tripod core is shown in FIG. In this way, the legs of the iron core are covered with the protective material 17 around the inner iron cores 1 and 2 and the outer iron core 7 which are integrated, so that the core can be prevented from being damaged when the coil is fitted. FIG. 6 shows a cross section of a portion in which the inner core and the outer core are combined, but the center leg of the tripod core in which the legs of the inner core are combined is also covered with the protective material 17 in the same manner and the same. Produces the effect of. Since the protective member has an exposed portion for exposing the joint portion of the yoke in the yoke having the joint portion, the joint portion of the yoke of the iron core can be opened in this portion to insert the coil.
【0017】上記の三脚巻鉄心の各脚部にコイルを嵌挿
し、その後ヨークの接合部を閉じることにより三相アモ
ルファス三脚巻鉄心変圧器を得ることができる。本実施
例の三相アモルファス三脚巻鉄心変圧器は図7に示すよ
うにアモルファス磁性薄帯が積層されて一対の脚部と一
対のヨークとこれらの脚部とヨークに囲まれた窓部を有
するよう矩形に成形され焼鈍されてそれぞれの脚部の一
方同士が隣接するよう配置された2個の内側鉄心1、2
と、アモルファス磁性薄帯が積層されて一対の脚部と一
対のヨークとこれらの脚部とヨークに囲まれた窓部を有
するよう矩形に成形され焼鈍されて上記2個の内側鉄心
の外周を囲むよう配置された外側鉄心7と、この外側鉄
心7の一方の脚部およびこの脚部の内側に配置された内
側鉄心1の脚部が嵌挿された第1のコイル18Aと、外
側鉄心7の他方の脚部およびこの脚部の内側に配置され
た内側鉄心2の脚部が嵌挿された第2のコイル18B
と、隣接するよう配置された内側鉄心1、2の脚部が嵌
挿された第3のコイル18Cで構成されている。A coil is fitted into each leg of the above-mentioned tripod-wound core, and then the joint of the yoke is closed, whereby a three-phase amorphous tripod-wound core transformer can be obtained. As shown in FIG. 7, the three-phase amorphous tripod winding iron core transformer of the present embodiment has a pair of leg portions, a pair of yokes, and a window portion surrounded by these leg portions and the yokes. Inner cores 1, 2 which are formed into a rectangular shape and are annealed so that one of the legs is adjacent to each other
Then, the amorphous magnetic ribbons are laminated to form a rectangular shape having a pair of leg portions, a pair of yokes, and a window portion surrounded by these leg portions and the yoke, and then annealed to form outer peripheries of the two inner cores. The outer core 7 arranged so as to surround it, the first coil 18A into which one leg of the outer core 7 and the leg of the inner core 1 arranged inside the leg are fitted, and the outer core 7 Coil 18B into which the other leg of the above and the leg of the inner core 2 arranged inside this leg are fitted and inserted
And a third coil 18C into which the legs of the inner cores 1 and 2 arranged to be adjacent to each other are fitted and inserted.
【0018】本実施例では接合部のあるヨーク部が保護
材19で覆われている。この保護材19は三脚鉄心の各
脚のそれぞれに第1のコイル、第2のコイル、第3のコ
イルを嵌挿した後で保護材17と同様に鉄心の表面を覆
うように装着される。これにより鉄心の表面が保護材1
7、19で覆われるのでアモルファス材の破片が発生し
ても散らばることがなく信頼性の高い変圧器を得ること
ができる。また、内外鉄心を同時にコイルに挿入するた
め、鉄心間の隙が無くなるのでコイルの鉄心挿入口が小
さくて済む。本実施例によれば、内側鉄心を外側鉄心の
枠とするため内側鉄心及び外側鉄心の組合せが良好とな
る。又、鉄心端面が保護材で覆われるため鉄心からの騒
音を減衰することができる。図7の変圧器はこの後の工
程でタンクに入れられ、このタンク内に油または6フッ
化硫黄ガス等の冷媒が封入されて最終製品となる。In the present embodiment, the yoke portion having the joint portion is covered with the protective material 19. The protective member 19 is mounted so as to cover the surface of the iron core in the same manner as the protective member 17 after the first coil, the second coil, and the third coil are inserted into the respective legs of the tripod core. As a result, the surface of the iron core is protected
Since it is covered with Nos. 7 and 19, even if the fragments of the amorphous material are generated, they are not scattered and a highly reliable transformer can be obtained. Further, since the inner and outer iron cores are inserted into the coil at the same time, there is no gap between the iron cores, so that the iron core insertion opening of the coil can be small. According to this embodiment, since the inner core is the frame of the outer core, the combination of the inner core and the outer core is good. Further, since the end surface of the iron core is covered with the protective material, noise from the iron core can be attenuated. The transformer of FIG. 7 is put in a tank in the subsequent process, and a final product is obtained by enclosing a refrigerant such as oil or sulfur hexafluoride gas in this tank.
【0019】[0019]
【発明の効果】本発明によれば、焼鈍後の組合せ時に鉄
心の破損や破片の大量発生を防止できる三相アモルファ
ス三脚巻鉄心、およびその製造方法、およびそれを用い
た三相アモルファス三脚巻鉄心変圧器を得ることができ
る。EFFECTS OF THE INVENTION According to the present invention, a three-phase amorphous tripod core capable of preventing damage to the core and generation of a large amount of debris during combination after annealing, a method for producing the same, and a three-phase amorphous tripod core using the same. You can get a transformer.
【図1】本発明の一実施例の巻鉄心の製造途中の正面図
である。FIG. 1 is a front view of a wound iron core according to an embodiment of the present invention during manufacturing.
【図2】本発明の一実施例の巻鉄心の接合部以外の直線
部を締付けた状態を示す正面図である。FIG. 2 is a front view showing a state in which the linear portion other than the joint portion of the wound core of the embodiment of the present invention is fastened.
【図3】本発明の一実施例の巻鉄心の接合部を開口し接
合部のあるヨーク部を締付けた所を示す正面図である。FIG. 3 is a front view showing a wound core of one embodiment of the present invention in which a joint portion is opened and a yoke portion having the joint portion is tightened.
【図4】本発明の一実施例の巻鉄心の磁場中焼鈍を示す
斜視図である。FIG. 4 is a perspective view showing annealing in a magnetic field of a wound iron core according to an embodiment of the present invention.
【図5】本発明の一実施例の巻鉄心の焼鈍後鉄心のコイ
ル挿入直前を示す正面図である。FIG. 5 is a front view showing the wound core of the embodiment of the present invention after annealing, immediately before the coil insertion of the core.
【図6】本発明の一実施例の巻鉄心の図5中の脚部A−
Aの断面図である。FIG. 6 is a leg portion A- in FIG. 5 of the wound iron core according to the embodiment of the present invention.
It is sectional drawing of A.
【図7】本発明の一実施例の巻鉄心変圧器の外形を示す
斜視図である。FIG. 7 is a perspective view showing an outer shape of a wound core transformer according to an embodiment of the present invention.
1,2…内側鉄心、3…保護材、4…非磁性材、5,6
…芯金、7…外側鉄心、8…保護材、9…保護材、10
…ボルト、11,12,13,14…締付金具、15,
16…導体、17,19…保護材、18…コイル1, 2 ... Inner iron core, 3 ... Protective material, 4 ... Non-magnetic material, 5, 6
... core metal, 7 ... outer iron core, 8 ... protective material, 9 ... protective material, 10
... Bolts, 11,12,13,14 ... Clamps, 15,
16 ... Conductor, 17, 19 ... Protective material, 18 ... Coil
Claims (6)
脚部と一対のヨークとこれらの脚部とヨークに囲まれた
窓部を有するよう矩形に成形され焼鈍されてそれぞれの
脚部の一方同士が隣接するよう配置された2個の内側鉄
心と、アモルファス磁性薄帯が積層されて一対の脚部と
一対のヨークとこれらの脚部とヨークに囲まれた窓部を
有するよう矩形に成形され上記内側鉄心と一体に焼鈍さ
れて上記2個の内側鉄心の外周を囲むよう配置された外
側鉄心を有することを特徴とする三相アモルファス三脚
巻鉄心。1. An amorphous magnetic ribbon is laminated and formed into a rectangular shape having a pair of legs, a pair of yokes, and a window surrounded by the legs, and is annealed to form one of the legs. Two inner cores arranged so that they are adjacent to each other, an amorphous magnetic ribbon are laminated and formed into a rectangular shape having a pair of legs, a pair of yokes, and a window surrounded by these legs and the yoke. And a three-phase amorphous tripod core having an outer core that is annealed integrally with the inner core and is arranged so as to surround the outer circumferences of the two inner cores.
部と一対のヨークとこれらの脚部とヨークに囲まれた窓
部を有するよう矩形に成形して2個の内側鉄心を形成
し、これらの2個の内側鉄心をそれぞれの脚部の一方同
士が隣接するよう配置し、この2個の内側鉄心を成形型
にしてアモルファス磁性薄帯を積層して一対の脚部と一
対のヨークとこれらの脚部とヨークに囲まれた窓部を有
するよう矩形に成形して外側鉄心を形成し、これらの内
側鉄心と外側鉄心を一体として励磁焼鈍することを特徴
とする三相アモルファス三脚巻鉄心の製造方法。2. Inner cores are formed by laminating amorphous magnetic ribbons into a rectangular shape having a pair of legs, a pair of yokes, and a window surrounded by the legs and the yoke. The two inner iron cores are arranged such that one of the leg portions is adjacent to each other, and the two inner iron cores are used as a mold to stack the amorphous magnetic ribbons to form a pair of leg portions and a pair of yokes. A three-phase amorphous tripod winding characterized by forming an outer core by forming a rectangular shape having a window surrounded by these legs and a yoke, and exciting and annealing the inner core and the outer core integrally Iron core manufacturing method.
れ、これを成形型として外側鉄心を逆U字状に積層し、
所定積層数になった所で内側鉄心および外側鉄心のそれ
ぞれの逆U字の開口部を閉じ、内側鉄心と外側鉄心を一
体として上記2個の内側鉄心の窓部内に同方向から直流
を流して励磁焼鈍することを特徴とする請求項2記載の
三相アモルファス三脚巻鉄心の製造方法。3. The two inner cores are suspended in an inverted U shape, and the outer iron cores are laminated in an inverted U shape by using this as a forming die.
When the predetermined number of laminated layers is reached, close the inverted U-shaped openings of the inner core and the outer core, and apply direct current from the same direction in the windows of the two inner cores by integrating the inner core and the outer core. Excitation annealing is performed, The manufacturing method of the three-phase amorphous tripod core according to claim 2.
一方の最外周を囲むよう巻回された非磁性体金属薄帯を
有することを特徴とする請求項1記載の三相アモルファ
ス三脚巻鉄心。4. The three-phase amorphous tripod core according to claim 1, wherein each of the two inner cores has a non-magnetic metal ribbon wound around at least one outermost circumference thereof. .
脚部と一対のヨークとこれらの脚部とヨークに囲まれた
窓部を有するよう矩形に成形され焼鈍されてそれぞれの
脚部の一方同士が隣接するよう配置された2個の内側鉄
心と、アモルファス磁性薄帯が積層されて一対の脚部と
一対のヨークとこれらの脚部とヨークに囲まれた窓部を
有するよう矩形に成形され焼鈍されて上記2個の内側鉄
心の外周を囲むよう配置された外側鉄心と、この外側鉄
心の一方の脚部およびこの脚部の内側に配置された上記
内側鉄心の脚部が嵌挿された第1のコイルと、上記外側
鉄心の他方の脚部およびこの脚部の内側に配置された上
記内側鉄心の脚部が嵌挿された第2のコイルと、上記隣
接するよう配置された内側鉄心の脚部が嵌挿された第3
のコイルを有することを特徴とする三相アモルファス三
脚巻鉄心変圧器。5. An amorphous magnetic ribbon is laminated to form a rectangular shape having a pair of legs, a pair of yokes, and a window surrounded by the legs, and is annealed to form one of the legs. Two inner cores arranged so that they are adjacent to each other, an amorphous magnetic ribbon are laminated and formed into a rectangular shape having a pair of legs, a pair of yokes, and a window surrounded by these legs and the yoke. And annealed, and the outer iron core arranged so as to surround the outer peripheries of the two inner iron cores, one leg of the outer iron core, and the leg of the inner iron core arranged inside the leg are fitted and inserted. A first coil, a second coil into which the other leg of the outer core and the leg of the inner core arranged inside the leg are fitted, and the inner side arranged to be adjacent to the second coil Third with the legs of the iron core inserted
Three-phase amorphous tripod core transformer, characterized by having a coil.
囲む保護材を有し、この保護部材はヨークの接合部を露
出させる露出部を接合部のあるヨークに有することを特
徴とする請求項5記載の三相アモルファス三脚巻鉄心変
圧器。6. A protective material integrally surrounding the inner core and the outer core, and the protective member has an exposed portion for exposing a joint portion of the yoke in the yoke having the joint portion. 5. The three-phase amorphous tripod winding core transformer according to 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5231231A JP2940356B2 (en) | 1993-09-17 | 1993-09-17 | Manufacturing method of three-phase amorphous tripod core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5231231A JP2940356B2 (en) | 1993-09-17 | 1993-09-17 | Manufacturing method of three-phase amorphous tripod core |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0786052A true JPH0786052A (en) | 1995-03-31 |
JP2940356B2 JP2940356B2 (en) | 1999-08-25 |
Family
ID=16920380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5231231A Expired - Lifetime JP2940356B2 (en) | 1993-09-17 | 1993-09-17 | Manufacturing method of three-phase amorphous tripod core |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2940356B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005005592A (en) * | 2003-06-13 | 2005-01-06 | Hitachi Industrial Equipment Systems Co Ltd | Amorphous core transformer and method for manufacturing the same |
JP2018502446A (en) * | 2014-11-25 | 2018-01-25 | アペラン | Basic module for magnetic core of transformer, magnetic core including the basic module, method for manufacturing the magnetic core, and transformer including the magnetic core |
EP2320439A4 (en) * | 2008-09-03 | 2018-05-02 | Hitachi Industrial Equipment Systems Co., Ltd. | Wound iron core for static apparatus, amorphous transformer and coil winding frame for transformer |
-
1993
- 1993-09-17 JP JP5231231A patent/JP2940356B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005005592A (en) * | 2003-06-13 | 2005-01-06 | Hitachi Industrial Equipment Systems Co Ltd | Amorphous core transformer and method for manufacturing the same |
EP2320439A4 (en) * | 2008-09-03 | 2018-05-02 | Hitachi Industrial Equipment Systems Co., Ltd. | Wound iron core for static apparatus, amorphous transformer and coil winding frame for transformer |
JP2018502446A (en) * | 2014-11-25 | 2018-01-25 | アペラン | Basic module for magnetic core of transformer, magnetic core including the basic module, method for manufacturing the magnetic core, and transformer including the magnetic core |
Also Published As
Publication number | Publication date |
---|---|
JP2940356B2 (en) | 1999-08-25 |
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