WO2017183166A1 - Amorphous wound iron core transformer - Google Patents
Amorphous wound iron core transformer Download PDFInfo
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- WO2017183166A1 WO2017183166A1 PCT/JP2016/062695 JP2016062695W WO2017183166A1 WO 2017183166 A1 WO2017183166 A1 WO 2017183166A1 JP 2016062695 W JP2016062695 W JP 2016062695W WO 2017183166 A1 WO2017183166 A1 WO 2017183166A1
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- wound core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/10—Single-phase transformers
Definitions
- the present invention relates to a technique for preventing debris scattering of an amorphous wound core transformer made of a foil strip magnetic material.
- transformers are increasingly interested in reducing loss, especially no-load loss (iron loss). ing.
- wound iron cores Most of the amorphous iron cores currently in use are called wound iron cores. Laminate cut foil strips so that the cross-section of the laminate is U-shaped, insert the windings, and then stack the left and right foil strips alternately. By combining them, an iron core that forms a closed magnetic circuit can be produced.
- Patent Document 1 a permanent magnet is disposed so as to cover the laminated surface of the wound core, and fragments generated from the wound core float in the insulating oil to insulate.
- the structure prevents the deterioration from occurring.
- Patent Document 1 As a method for preventing the scattering of broken pieces of the wound iron core, in Patent Document 1, a permanent magnet is disposed so as to cover the laminated surface of the wound iron core to prevent the fragments generated from the wound iron core from floating in the insulating oil and causing insulation deterioration. ing.
- insulating paper or resin is disposed on a part of the laminated end surface of the wound core, and insulating paper is disposed on the wound core wrap portion.
- the present invention is characterized in that a permanent magnet is disposed on a part of the wound core such as a joint between the insulating paper and the resin, a wrap portion of the wound core or an end of the laminated surface. This makes it possible to take measures to prevent debris scattering without deteriorating the magnetic characteristics of the transformer.
- the present application includes a plurality of means for solving the above-described problems.
- a wound iron core, insulating paper, a resin, and a permanent magnet are used, and a resin is disposed on an end surface other than the wrap portion of the wound core.
- the wrap portion is covered with insulating paper, and the permanent magnet is disposed at a location where the insulating paper and the resin are in contact.
- the present invention has been made in view of the above, and by disposing the permanent magnets effectively on the wound iron core, it is possible to take measures to prevent fragment scattering without deteriorating the magnetic characteristics.
- Explanatory drawing of 1 form of the wound iron core transformer of this invention An explanatory view of one form of arrangement and arrangement of permanent magnets proposed in the present invention.
- Explanatory drawing of 1 form of the wound iron core transformer of this invention An explanatory view of one form of arrangement and arrangement of permanent magnets proposed in the present invention.
- An explanatory view of one form of arrangement and arrangement of permanent magnets proposed in the present invention Explanatory drawing of 1 form of the wound iron core transformer of this invention.
- An explanatory view of one form of arrangement and arrangement of permanent magnets proposed in the present invention Explanatory drawing of 1 form of the wound iron core transformer of this invention.
- Explanatory drawing of 1 form of the wound iron core transformer of this invention Explanatory drawing of 1 form of the wound iron core transformer of this invention.
- FIG. 1 is a diagram showing an embodiment of the present invention.
- FIG. 1 is a view of a wound iron core as viewed from the side of the laminated end surface.
- the straight line portion on the upper side of the wound iron core is a wound iron core yoke portion, and the straight line portion on the lower side of the wound iron core is a wound iron core wrap portion.
- the central part of the wound core other than the yoke part and the lap part is the wound core leg part.
- the present invention includes a wound iron core 1, a resin 2 arranged on both sides of a laminated end surface of the wound iron core 1, an insulating paper 3 arranged so as to cover a wrap portion of the wound iron core 1, a winding
- the permanent magnet 4 is roughly constituted by a laminated end face side of the lap portion of the iron core 1 and between the insulating paper 3 and the wound iron core 1.
- the wound core 1 is covered with an insulator such as resin or insulating paper, and an insulator such as a press board or insulating oil is interposed between the legs of the wound core 1 and the winding.
- the wound core 1 is formed by laminating thousands of amorphous foil strips, and an electromagnetic steel sheet having a thickness of about 200 ⁇ m is formed in addition to the entire outermost surface on the side of the wound core foil strip and the innermost lap portion. Has been placed. Therefore, since the debris scattering path of the foil strip is the laminated end face side of the wound core 1 and the lap portion, the configuration of this embodiment blocks the debris scattering path of the foil strip and permanently attracts the amorphous foil strip debris. By effectively arranging the magnets 4, it is possible to strengthen measures for preventing fragment scattering.
- the permanent magnet 4 is, for example, a ferrite magnet, a neodymium magnet, a samarium cobalt magnet, an alnico magnet, or the like, and the thickness is desirably 10 mm or less that does not hinder other structures.
- FIG. 2 illustrates one form of the permanent magnet 4 arranged on the wound core 1.
- FIG. 2 shows a view of the wrap portion of the amorphous wound iron core 1 as viewed from the outer peripheral side of the foil strip surface (the insulating paper 3 is not shown for easy understanding of the magnet arrangement method).
- the magnetic force of the magnet can be changed by the arrangement of the N and S poles of the magnet (communach array).
- a dotted line and an arrow indicate the direction of the magnetic field, and a large arrow indicates a large magnetic field.
- the magnetic force is weaker in the direction from the permanent magnet 4 to the wound core 1 and stronger around the wound core 1. is doing.
- the influence of the permanent magnets 4 on the magnetic properties of the wound core 1 can be reduced, and the foil strip fragments that are to diffuse around the wound core 1 can be attracted more strongly. It is configured.
- FIG. 3 is a diagram showing an embodiment of the present invention.
- the arrangement of the permanent magnets 4 is changed with respect to the configuration described in FIG. 1 of the first embodiment, and the permanent magnets 4 are disposed on the outer peripheral portion and the inner peripheral portion of the laminated end surfaces of the yoke portion and the leg portion of the wound core 1.
- the arrangement is arranged.
- the arrangement of the permanent magnets shown in FIG. 3 allows the foil strips to be prevented from scattering even when a gap or a defect occurs between the resin 2 and the wound core laminated end face.
- the permanent magnet 4 is arranged in a Halbach array, so that the influence of the permanent magnet 4 on the magnetic properties of the wound core 1 is reduced, and a piece of foil strip that is to diffuse around the wound core 1. Can be configured to attract more strongly.
- FIG. 4 shows a view of the yoke portion of the wound core 1 as seen from the outer peripheral side of the foil strip surface. Moreover, the figure seen from the foil strip surface outer peripheral side of the leg part of the wound iron core 1 is shown in FIG. As shown in FIGS. 4 and 5, the magnets are arranged in a Halbach array.
- FIG. 6 is a diagram showing an embodiment of the present invention.
- the present invention has a configuration in which the arrangement of the permanent magnets 4 is changed with respect to the configuration described in FIG. 1 of the first embodiment, and the permanent magnets 4 are arranged at the joint portions of the resin 2 and the insulating paper 3 of the wound core 1.
- the arrangement of the permanent magnets shown in FIG. 6 enables the foil strips to be prevented from scattering even when a gap is generated between the resin 2 and the insulating paper 3.
- FIG. 7 is an enlarged view of the magnet attached to the leg portion of the wound core 1. As shown in FIG. 7, the magnets are arranged in a Halbach array.
- FIG. 8 is a diagram showing an embodiment of the present invention.
- the arrangement of the permanent magnet 4 is changed with respect to the configuration described in FIG. 1 of the first embodiment, and the outer peripheral portion and inner peripheral portion of the laminated end surface of the yoke portion and the leg portion of the wound core 1 and the wound core 1 are changed.
- the permanent magnet 4 is arranged at the joint between the resin 2 and the insulating paper 3.
- the arrangement of the permanent magnets shown in FIG. 8 allows the foil to be used even when a gap or a defect occurs between the resin 2 and the wound core laminated end face or when a gap occurs between the resin 2 and the insulating paper 3. It is configured to prevent strip debris scattering.
- FIG. 9 is a diagram showing one embodiment of the present invention.
- the present invention covers the entire wound core 1 with the insulating paper 3 without arranging the resin 2 with respect to the configuration described in FIG.
- the configuration is as follows.
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Abstract
The present invention provides an amorphous wound iron core transformer that can prevent scattering of debris of an amorphous foil band without causing demagnetization and an increase in iron loss. The present invention is composed of: a wound iron core 1; a resin 2 disposed on both sides of lamination end faces of the wound iron core 1; insulating paper 3 disposed so as to cover a lapping section of the wound iron core 1; and a permanent magnet 4 that is disposed on a lamination-end-face side of the lapping section of the wound iron core 1 and between the insulating paper 3 and the wound iron core 1.
Description
本発明は、箔帯状磁性材料からなるアモルファス巻鉄心変圧器の破片飛散防止技術に関する。
The present invention relates to a technique for preventing debris scattering of an amorphous wound core transformer made of a foil strip magnetic material.
The present invention relates to a technique for preventing debris scattering of an amorphous wound core transformer made of a foil strip magnetic material.
近年の地球温暖化問題への意識の高まり、一部地域における急速な経済発展による電力需要の急増に伴い、変圧器においては、損失の低減、特に無負荷損（鉄損）低減に対する関心が高まっている。
With the recent increase in awareness of global warming issues and the rapid increase in power demand due to rapid economic development in some areas, transformers are increasingly interested in reducing loss, especially no-load loss (iron loss). ing.
箔帯状磁性材料であるアモルファス磁性合金箔帯を用いた変圧器の無負荷損が、方向性珪素鋼板の１／３～１／４であることを利用し、配電用の変圧器鉄心材料として実用化されている。
Practical use as transformer core material for power distribution, utilizing the fact that the no-load loss of a transformer using an amorphous magnetic alloy foil strip, which is a foil strip magnetic material, is 1/3 to 1/4 that of a directional silicon steel sheet. It has become.
現在使用されているアモルファス鉄心のほとんどは巻鉄心と呼ばれるもので、切断した箔帯を積層断面がコの字をなすように積層し、巻線を挿入したあと、左右の箔帯を交互に重ね合わせることにより、閉磁路を形成する鉄心を作製できる。
Most of the amorphous iron cores currently in use are called wound iron cores. Laminate cut foil strips so that the cross-section of the laminate is U-shaped, insert the windings, and then stack the left and right foil strips alternately. By combining them, an iron core that forms a closed magnetic circuit can be produced.
また、箔帯の積層作業に起因する応力の影響を除去するために、当該巻鉄心を成形した状態で磁場中焼鈍が行われる。しかし、焼鈍した箔帯状磁性材料は、非常に脆くなるため、巻鉄心をコイルに挿入する作業時、コイルの端面から内部に前記箔帯状磁性材料の破片が侵入して絶縁を破壊する。また、輸送中の振動や使用中の衝撃等により、積層され箔帯状磁性材料の側面、すなわち巻鉄心の端面における割れ等により、箔帯状磁性材料の破片が油中に散逸し、この散逸した破片が原因となり、コイルの絶縁を破壊してしまう可能性があった。
Also, in order to remove the influence of stress caused by the laminating work of the foil strip, annealing in a magnetic field is performed in a state where the wound iron core is formed. However, since the annealed foil strip magnetic material becomes very brittle, when the wound iron core is inserted into the coil, fragments of the foil strip magnetic material enter the inside from the end face of the coil and destroy the insulation. Also, due to vibration during transportation, impact during use, etc., the side of the laminated foil strip magnetic material, that is, the crack at the end face of the wound iron core, etc., the piece of foil strip magnetic material dissipates in the oil, and this dissipated fragment This could cause the coil insulation to break.
そこで、実開平５－８２０２０（以下、特許文献1と呼ぶ）記載の技術では、巻鉄心の積層面を覆うように永久磁石を配置し、巻鉄心から生じる破片が絶縁油中を浮遊して絶縁劣化が生じるのを防止する構成としている。
Therefore, in the technique described in Japanese Utility Model Laid-Open No. 5-82020 (hereinafter referred to as Patent Document 1), a permanent magnet is disposed so as to cover the laminated surface of the wound core, and fragments generated from the wound core float in the insulating oil to insulate. The structure prevents the deterioration from occurring.
Therefore, in the technique described in Japanese Utility Model Laid-Open No. 5-82020 (hereinafter referred to as Patent Document 1), a permanent magnet is disposed so as to cover the laminated surface of the wound core, and fragments generated from the wound core float in the insulating oil to insulate. The structure prevents the deterioration from occurring.
巻鉄心の破片飛散防止方法として、特許文献１では、巻鉄心の積層面を覆うように永久磁石を配置し、巻鉄心から生じる破片が絶縁油中を浮遊して絶縁劣化が生じるのを防止している。
As a method for preventing the scattering of broken pieces of the wound iron core, in Patent Document 1, a permanent magnet is disposed so as to cover the laminated surface of the wound iron core to prevent the fragments generated from the wound iron core from floating in the insulating oil and causing insulation deterioration. ing.
しかし、巻鉄心の積層面を覆うように全面に永久磁石を配置した場合、巻鉄心の中を通る磁束への影響が大きく、減磁や鉄損の増加が懸念される。
However, when permanent magnets are arranged on the entire surface so as to cover the laminated surface of the wound core, the influence on the magnetic flux passing through the wound core is large, and there is a concern about demagnetization and an increase in iron loss.
However, when permanent magnets are arranged on the entire surface so as to cover the laminated surface of the wound core, the influence on the magnetic flux passing through the wound core is large, and there is a concern about demagnetization and an increase in iron loss.
上記課題を解決するため、巻鉄心の積層端面の一部に絶縁紙もしくは樹脂を配置するとともに、巻鉄心ラップ部には絶縁紙を配置する。さらに、絶縁紙と樹脂との継目、巻鉄心のラップ部や積層面の端部など巻鉄心の一部に永久磁石を配置した構成としたことを特徴とする。これにより、変圧器の磁気特性を悪化させることなく破片飛散防止対策を行うことが可能となる。
In order to solve the above problems, insulating paper or resin is disposed on a part of the laminated end surface of the wound core, and insulating paper is disposed on the wound core wrap portion. Further, the present invention is characterized in that a permanent magnet is disposed on a part of the wound core such as a joint between the insulating paper and the resin, a wrap portion of the wound core or an end of the laminated surface. This makes it possible to take measures to prevent debris scattering without deteriorating the magnetic characteristics of the transformer.
本願は上記課題を解決する手段を複数含んでいるが、その一例を挙げるならば、巻鉄心と絶縁紙と樹脂と永久磁石で構成され、巻鉄心のラップ部以外の端面には、樹脂を配置し、ラップ部は絶縁紙で覆う構造とし、永久磁石を絶縁紙と樹脂とが接する個所に配置する。上記構成とすることで、絶縁紙や樹脂の接着が不十分であっても、破片が油中に拡散される前に鉄心に張付した永久磁石によって破片を吸着、保持することが可能となるため破片飛散を防止できることを特徴とする。
The present application includes a plurality of means for solving the above-described problems. To give an example, a wound iron core, insulating paper, a resin, and a permanent magnet are used, and a resin is disposed on an end surface other than the wrap portion of the wound core. The wrap portion is covered with insulating paper, and the permanent magnet is disposed at a location where the insulating paper and the resin are in contact. By adopting the above configuration, even if the insulating paper or the resin is not sufficiently bonded, the debris can be adsorbed and held by the permanent magnet attached to the iron core before the debris diffuses into the oil. Therefore, it is possible to prevent debris scattering.
The present application includes a plurality of means for solving the above-described problems. To give an example, a wound iron core, insulating paper, a resin, and a permanent magnet are used, and a resin is disposed on an end surface other than the wrap portion of the wound core. The wrap portion is covered with insulating paper, and the permanent magnet is disposed at a location where the insulating paper and the resin are in contact. By adopting the above configuration, even if the insulating paper or the resin is not sufficiently bonded, the debris can be adsorbed and held by the permanent magnet attached to the iron core before the debris diffuses into the oil. Therefore, it is possible to prevent debris scattering.
本発明は上記に鑑みて為されたもので、永久磁石を巻鉄心に効果的に配置することで、磁気特性の悪化を招くことなく破片飛散防止対策を行うことが可能となる。
The present invention has been made in view of the above, and by disposing the permanent magnets effectively on the wound iron core, it is possible to take measures to prevent fragment scattering without deteriorating the magnetic characteristics.
The present invention has been made in view of the above, and by disposing the permanent magnets effectively on the wound iron core, it is possible to take measures to prevent fragment scattering without deteriorating the magnetic characteristics.
以下、本発明にかかる変圧器巻鉄心の実施の形態について図面を用いて説明する。なお、この実施の形態によりこの発明が限定されるものではない。
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a transformer wound core according to the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a transformer wound core according to the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
図１は本発明の一実施例を示す図である。図１は巻鉄心を積層端面側から見た図であり、巻鉄心の上側の直線部が巻鉄心ヨーク部であり、巻鉄心の下側の直線部が巻鉄心ラップ部であり、巻鉄心１のヨーク部及びラップ部以外の巻鉄心中央部が巻鉄心脚部である。
FIG. 1 is a diagram showing an embodiment of the present invention. FIG. 1 is a view of a wound iron core as viewed from the side of the laminated end surface. The straight line portion on the upper side of the wound iron core is a wound iron core yoke portion, and the straight line portion on the lower side of the wound iron core is a wound iron core wrap portion. The central part of the wound core other than the yoke part and the lap part is the wound core leg part.
図１に示されているように本発明は、巻鉄心１、巻鉄心１の積層端面の両側に配置された樹脂２、巻鉄心１のラップ部を覆うように配置された絶縁紙３、巻鉄心１のラップ部の積層端面側でかつ絶縁紙３と巻鉄心１との間に配置された永久磁石４で概略構成される。
As shown in FIG. 1, the present invention includes a wound iron core 1, a resin 2 arranged on both sides of a laminated end surface of the wound iron core 1, an insulating paper 3 arranged so as to cover a wrap portion of the wound iron core 1, a winding The permanent magnet 4 is roughly constituted by a laminated end face side of the lap portion of the iron core 1 and between the insulating paper 3 and the wound iron core 1.
通常、巻鉄心１の脚部に巻線が巻回されるため、巻鉄心１の脚部と巻線の間には高い電界が発生する。したがって、巻鉄心１の脚部と巻線の間にアモルファス箔帯の破片や金属片が入った場合、絶縁不良を起こす可能性がある。そのため、巻鉄心１は樹脂や絶縁紙などの絶縁物で覆われ、巻鉄心１の脚部と巻線との間には、プレスボードや絶縁油のような絶縁物を介在させている。
Usually, since the winding is wound around the leg of the wound core 1, a high electric field is generated between the leg of the wound core 1 and the winding. Therefore, when a piece of amorphous foil strip or a metal piece enters between the leg portion of the wound core 1 and the winding, there is a possibility of causing an insulation failure. Therefore, the wound core 1 is covered with an insulator such as resin or insulating paper, and an insulator such as a press board or insulating oil is interposed between the legs of the wound core 1 and the winding.
また、巻鉄心１は数千枚のアモルファス箔帯を積層して形成されており、巻鉄心箔帯側の最外周全面と、最内周のラップ部以外に厚み２００μｍ程度の電磁鋼板１枚が配置されている。したがって、箔帯の破片飛散経路は、巻鉄心１の積層端面側とラップ部となるため、本実施例の構成により、箔帯の破片飛散経路を遮断するとともに、アモルファス箔帯の破片を引き付ける永久磁石４を効果的に配置することで、破片飛散防止対策を強固なものとできる。
The wound core 1 is formed by laminating thousands of amorphous foil strips, and an electromagnetic steel sheet having a thickness of about 200 μm is formed in addition to the entire outermost surface on the side of the wound core foil strip and the innermost lap portion. Has been placed. Therefore, since the debris scattering path of the foil strip is the laminated end face side of the wound core 1 and the lap portion, the configuration of this embodiment blocks the debris scattering path of the foil strip and permanently attracts the amorphous foil strip debris. By effectively arranging the magnets 4, it is possible to strengthen measures for preventing fragment scattering.
永久磁石４は、例えば、フェライト磁石、ネオジム磁石、サマリウムコバルト磁石、アルニコ磁石などであり、その厚みは他の構造物の障害とならない程度の10mm以下のものが望ましい。
The permanent magnet 4 is, for example, a ferrite magnet, a neodymium magnet, a samarium cobalt magnet, an alnico magnet, or the like, and the thickness is desirably 10 mm or less that does not hinder other structures.
また、永久磁石４の配置方法として、一つの磁石を図１に示した箇所に配置する以外に、図２に示した配置方法が挙げられる。図２に巻鉄心１に配置した永久磁石４の１形態について説明する。図２はアモルファス巻鉄心１のラップ部の箔帯面外周側から見た図を示している（絶縁紙３は磁石の配置方法を見易くするため図示していない）。磁石のＮ極とＳ極の配置によって、磁石の磁力を変化させることが可能となる（halbach（ハルバッハ）配列）。また、点線と矢印で磁界の方向を示しており、大きな矢印は大きな磁界を表している。図２に示した永久磁石の組み合わせとすることで、永久磁石４から巻鉄心１の方向に対しては磁力が弱くなるように、巻鉄心１の周囲に対しては磁力が強くなるように構成している。図２に示した永久磁石の配置することで、永久磁石４による巻鉄心１の磁気特性への影響を小さくするとともに、巻鉄心１の周囲に拡散しようとする箔帯の破片をより強く引き付けられる構成としている。
Moreover, as an arrangement method of thepermanent magnets 4, there is the arrangement method shown in FIG. 2 in addition to arranging one magnet at the location shown in FIG. 1. FIG. 2 illustrates one form of the permanent magnet 4 arranged on the wound core 1. FIG. 2 shows a view of the wrap portion of the amorphous wound iron core 1 as viewed from the outer peripheral side of the foil strip surface (the insulating paper 3 is not shown for easy understanding of the magnet arrangement method). The magnetic force of the magnet can be changed by the arrangement of the N and S poles of the magnet (halbach array). A dotted line and an arrow indicate the direction of the magnetic field, and a large arrow indicates a large magnetic field. The combination of the permanent magnets shown in FIG. 2 is configured so that the magnetic force is weaker in the direction from the permanent magnet 4 to the wound core 1 and stronger around the wound core 1. is doing. By arranging the permanent magnets shown in FIG. 2, the influence of the permanent magnets 4 on the magnetic properties of the wound core 1 can be reduced, and the foil strip fragments that are to diffuse around the wound core 1 can be attracted more strongly. It is configured.
Moreover, as an arrangement method of the
図３は本発明の１実施例を示す図である。
FIG. 3 is a diagram showing an embodiment of the present invention.
本発明は実施例１の図１で説明した構成に対して、永久磁石４の配置を変更し、巻鉄心１のヨーク部および脚部の積層端面の外周部と内周部に永久磁石４を配置した構成としている。
In the present invention, the arrangement of the permanent magnets 4 is changed with respect to the configuration described in FIG. 1 of the first embodiment, and the permanent magnets 4 are disposed on the outer peripheral portion and the inner peripheral portion of the laminated end surfaces of the yoke portion and the leg portion of the wound core 1. The arrangement is arranged.
図３に示した永久磁石の配置とすることで、樹脂２と巻鉄心積層端面の間に隙間や欠陥が発生した場合にも、箔帯の破片飛散を防止可能な構成としている。
The arrangement of the permanent magnets shown in FIG. 3 allows the foil strips to be prevented from scattering even when a gap or a defect occurs between the resin 2 and the wound core laminated end face.
また、図２と同様、永久磁石４をハルバッハ配列にすることで、永久磁石４による巻鉄心１の磁気特性への影響を小さくするとともに、巻鉄心１の周囲に拡散しようとする箔帯の破片をより強く引き付けられる構成にできる。図４に巻鉄心１のヨーク部の箔帯面外周側から見た図を示す。また、図５に巻鉄心１の脚部の箔帯面外周側から見た図を示す。図４、５に示すように磁石をハルバッハ配列とする。
As in FIG. 2, thepermanent magnet 4 is arranged in a Halbach array, so that the influence of the permanent magnet 4 on the magnetic properties of the wound core 1 is reduced, and a piece of foil strip that is to diffuse around the wound core 1. Can be configured to attract more strongly. FIG. 4 shows a view of the yoke portion of the wound core 1 as seen from the outer peripheral side of the foil strip surface. Moreover, the figure seen from the foil strip surface outer peripheral side of the leg part of the wound iron core 1 is shown in FIG. As shown in FIGS. 4 and 5, the magnets are arranged in a Halbach array.
As in FIG. 2, the
図６は本発明の１実施例を示す図である。
FIG. 6 is a diagram showing an embodiment of the present invention.
本発明は実施例１の図１で説明した構成に対して、永久磁石４の配置を変更し、巻鉄心１の樹脂２と絶縁紙３の継目部分に永久磁石４を配置した構成としている。
The present invention has a configuration in which the arrangement of the permanent magnets 4 is changed with respect to the configuration described in FIG. 1 of the first embodiment, and the permanent magnets 4 are arranged at the joint portions of the resin 2 and the insulating paper 3 of the wound core 1.
図６に示した永久磁石の配置とすることで、樹脂２と絶縁紙３の間に隙間が生じた場合にも、箔帯の破片飛散を防止可能な構成としている。
The arrangement of the permanent magnets shown in FIG. 6 enables the foil strips to be prevented from scattering even when a gap is generated between the resin 2 and the insulating paper 3.
また、図２と同様、永久磁石４をハルバッハ配列にすることで、永久磁石４による巻鉄心１の磁気特性への影響を小さくするとともに、巻鉄心１の周囲に拡散しようとする箔帯の破片をより強く引き付けられる構成にできる。図７は巻鉄心１の脚部に張り付けた磁石の拡大図である。図７に示すように磁石をハルバッハ配列とする。
As in FIG. 2, thepermanent magnet 4 is arranged in a Halbach array, so that the influence of the permanent magnet 4 on the magnetic properties of the wound core 1 is reduced, and a piece of foil strip that is to diffuse around the wound core 1. Can be configured to attract more strongly. FIG. 7 is an enlarged view of the magnet attached to the leg portion of the wound core 1. As shown in FIG. 7, the magnets are arranged in a Halbach array.
As in FIG. 2, the
図８は本発明の１実施例を示す図である。本発明は実施例１の図１で説明した構成に対して、永久磁石４の配置を変更し、巻鉄心１のヨーク部および脚部の積層端面の外周部と内周部及び巻鉄心１の樹脂２と絶縁紙３の継目部分に永久磁石４を配置した構成としている。
FIG. 8 is a diagram showing an embodiment of the present invention. In the present invention, the arrangement of the permanent magnet 4 is changed with respect to the configuration described in FIG. 1 of the first embodiment, and the outer peripheral portion and inner peripheral portion of the laminated end surface of the yoke portion and the leg portion of the wound core 1 and the wound core 1 are changed. The permanent magnet 4 is arranged at the joint between the resin 2 and the insulating paper 3.
図８に示した永久磁石の配置とすることで、樹脂２と巻鉄心積層端面の間に隙間や欠陥が発生した場合や樹脂２と絶縁紙３の間に隙間が生じた場合にも、箔帯の破片飛散を防止可能な構成としている。
The arrangement of the permanent magnets shown in FIG. 8 allows the foil to be used even when a gap or a defect occurs between theresin 2 and the wound core laminated end face or when a gap occurs between the resin 2 and the insulating paper 3. It is configured to prevent strip debris scattering.
The arrangement of the permanent magnets shown in FIG. 8 allows the foil to be used even when a gap or a defect occurs between the
図９は本発明の１実施例を示す図である。
FIG. 9 is a diagram showing one embodiment of the present invention.
本発明は実施例１の図１で説明した構成に対して、樹脂２を配置することなく、巻鉄心１の全体を絶縁紙３で覆うとともに、永久磁石４を絶縁紙３の継目部分に配置した構成とする。
The present invention covers the entire wound core 1 with the insulating paper 3 without arranging the resin 2 with respect to the configuration described in FIG. The configuration is as follows.
図９に示した永久磁石の配置とすることで、絶縁紙同士の継ぎ目の部分に隙間が生じた場合にも、箔帯の破片飛散を防止可能な構成としている。
By adopting the arrangement of the permanent magnets shown in FIG. 9, even when a gap is generated at the joint portion between the insulating papers, the strips of the foil strip can be prevented from scattering.
By adopting the arrangement of the permanent magnets shown in FIG. 9, even when a gap is generated at the joint portion between the insulating papers, the strips of the foil strip can be prevented from scattering.
１・・・変圧器巻鉄心、２・・・樹脂、３・・・絶縁紙、４・・・永久磁石、５・・・巻鉄心積層端面、６・・・巻鉄心箔帯面
1 ... transformer wound iron core, 2 ... resin, 3 ... insulating paper, 4 ... permanent magnet, 5 ... winding core laminated end face, 6 ... winding iron foil strip surface
Claims (7)
- 巻鉄心の積層端面に樹脂と絶縁紙を配置するとともに、積層端面に永久磁石を配置したことを特徴とするアモルファス巻鉄心変圧器。
An amorphous wound core transformer characterized in that resin and insulating paper are disposed on the laminated end surface of the wound core, and a permanent magnet is disposed on the laminated end surface.
- 請求項１記載のアモルファス巻鉄心変圧器において、前記巻鉄心の下側の直線部（ラップ部）の積層端面に永久磁石を配置したことを特徴とするアモルファス巻鉄心変圧器。
2. The amorphous wound core transformer according to claim 1, wherein a permanent magnet is disposed on a laminated end face of a linear portion (wrap portion) on the lower side of the wound core.
- 請求項１記載のアモルファス巻鉄心変圧器において、前記巻鉄心の上側の直線部（ヨーク部）および脚部の積層端面の外周部と内周部に永久磁石を配置したことを特徴とするアモルファス巻鉄心変圧器。
2. The amorphous wound core transformer according to claim 1, wherein permanent magnets are disposed on the outer peripheral portion and inner peripheral portion of the laminated end surface of the leg portion and the linear portion (yoke portion) on the upper side of the wound core. Iron core transformer.
- 請求項１記載のアモルファス巻鉄心変圧器において、前記樹脂と絶縁紙の継目部分に永久磁石を配置したことを特徴とするアモルファス巻鉄心変圧器。
2. The amorphous wound core transformer according to claim 1, wherein a permanent magnet is disposed at a joint between the resin and the insulating paper.
- 請求項１記載のアモルファス巻鉄心変圧器において、前記巻鉄心の上側の直線部（ヨーク部）および脚部の積層端面の外周部と内周部および樹脂と絶縁紙の継目部分に永久磁石を配置したことを特徴とするアモルファス巻鉄心変圧器。
2. The amorphous wound core transformer according to claim 1, wherein permanent magnets are arranged on the linear portion (yoke portion) on the upper side of the wound core, the outer peripheral portion and the inner peripheral portion of the laminated end surface of the leg portion, and the joint portion of the resin and the insulating paper. Amorphous wound core transformer characterized by
- アモルファス巻鉄心変圧器の巻鉄心を絶縁紙で覆う構造とし、前記絶縁紙の継目に永久磁石を配置したことを特徴とするアモルファス巻鉄心変圧器。
An amorphous wound core transformer, wherein the wound iron core of the amorphous wound core transformer is covered with insulating paper, and a permanent magnet is arranged at the joint of the insulating paper.
- 請求項１から６のいずれかに記載のアモルファス巻鉄心変圧器において、前記永久磁石の配置をhalbach（ハルバッハ）配列とし、巻鉄心側に磁力の弱い配置とし、巻鉄心の外側に磁力の強い配列としたことを特徴とするアモルファス巻鉄心変圧器。 The amorphous wound core transformer according to any one of claims 1 to 6, wherein the permanent magnets are arranged in a halbach (Halbach) arrangement, a magnetic force is arranged on the side of the wound core, and a magnetic force is arranged outside the wound core. An amorphous wound core transformer characterized by
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| PCT/JP2016/062695 WO2017183166A1 (en) | 2016-04-22 | 2016-04-22 | Amorphous wound iron core transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/062695 WO2017183166A1 (en) | 2016-04-22 | 2016-04-22 | Amorphous wound iron core transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742569A (en) * | 2017-11-17 | 2018-02-27 | 山东华驰变压器股份有限公司 | A kind of epoxy resin pouring type non-crystaline amorphous metal iron core of electric reactor and preparation method thereof |
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| CN107742569A (en) * | 2017-11-17 | 2018-02-27 | 山东华驰变压器股份有限公司 | A kind of epoxy resin pouring type non-crystaline amorphous metal iron core of electric reactor and preparation method thereof |
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