JP2002208518A - Stationary induction electromagnetic apparatus - Google Patents

Stationary induction electromagnetic apparatus

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Publication number
JP2002208518A
JP2002208518A JP2001001338A JP2001001338A JP2002208518A JP 2002208518 A JP2002208518 A JP 2002208518A JP 2001001338 A JP2001001338 A JP 2001001338A JP 2001001338 A JP2001001338 A JP 2001001338A JP 2002208518 A JP2002208518 A JP 2002208518A
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Japan
Prior art keywords
magnetic material
core
magnetic
wound core
yoke portion
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JP2001001338A
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Japanese (ja)
Inventor
Tomomasa Haraguchi
Koichi Hirakawa
Yoshiji Kagohara
奉昌 原口
功一 平川
義二 篭原
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Matsushita Electric Ind Co Ltd
松下電器産業株式会社
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Priority to JP2001001338A priority Critical patent/JP2002208518A/en
Publication of JP2002208518A publication Critical patent/JP2002208518A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide a stationary induction electromagnetic apparatus which is restrained from increasing in the amount of electromagnetic steel plate used, has a small power loss, is capable of saving resources, produces less noises, and has no adverse effect on the environment. SOLUTION: Electromagnetic steel plates of different lengths are laminated into a magnetic material 6. The magnetic material 6 is arranged on the yoke of a three-phase wound core 1, so that a magnetic flux flowing through the yoke from the leg of the three-phase wound core 1 is made to flow through not only the three-phase wound core 1 but also the magnetic material 6. The magnetic flux is reduced in density at the yoke, so that the iron loss and noises of this stationary induction electromagnetic apparatus can be made smaller than those in a case of dispensing with the magnetic material 6. Therefore, the electromagnetic steel plate can be more restrained from increasing in the number of turns, width, weight, and dimensions than usual so as to realize a stationary induction electromagnetic apparatus which is lighter, capable of more saving resources, has a smaller iron loss, produces less noises, and has less adverse effect on the environment than usual.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、変圧器やリアクトルなどの静止誘導電磁機器に関する。 The present invention relates to relates to a stationary induction apparatus such as transformers and reactors.

【0002】 [0002]

【従来の技術】近年、環境問題に対する意識が高まっている。 In recent years, there has been a growing awareness of environmental issues. 環境問題として省エネルギーおよび騒音問題などが挙げられ、静止誘導電磁機器においては、機器の低損失および低騒音化が要求されている。 Energy conservation and noise problems as environmental problems and the like, in the stationary induction electromagnetic equipment, low loss and low noise of the device is required.

【0003】以下に、従来の静止誘導電磁機器である変圧器について説明する。 [0003] The following describes a transformer is a conventional stationary induction electromagnetic equipment.

【0004】図18は、従来の変圧器の概略構成を示すものである。 [0004] Figure 18 shows a schematic configuration of a conventional transformer.

【0005】図18において、変圧器101は電磁鋼板を巻回して積層した第1の内側巻鉄心102および第2 [0005] In FIG. 18, the transformer 101 first inner wound iron core 102 and the second laminated by winding magnetic steel
の内側巻鉄心103および外側巻鉄心104からなる三相巻鉄心106と、導体を巻回したコイル105から構成されている。 The inner wound core 103 and an outer wound core 104 three-phase wound core 106 made of, and a coil 105 wound conductors.

【0006】以上の様に構成した変圧器101において、コイル105に電圧を印加するとコイル105に励磁電流が流れ、この励磁電流により三相巻鉄心106内に磁束が流れる。 [0006] In the transformer 101 configured as described above, when a voltage is applied to the coil 105 excitation current flows through the coil 105, magnetic flux flows through the three-phase wound core 106 by the excitation current. この磁束により三相巻鉄心106は、 Three-phase wound core 106 by this magnetic flux,
ヒステリシス損失や渦電流損失といった鉄損といわれる損失を生じ、また、この磁束による電磁鋼板の伸縮である磁歪により騒音が発生する。 Due to losses called iron loss such as hysteresis loss and eddy current loss, also noise caused by magnetostriction is the expansion and contraction of the electromagnetic steel sheet by the magnetic flux. そして、損失および騒音は三相巻鉄心106の磁束密度の増加に伴い増加する。 The loss and the noise increases with increasing magnetic flux density of the three-phase wound core 106.

【0007】従来、損失および騒音については、電磁鋼板の巻回数を増加することや、より幅の広い電磁鋼板を使用するなど、主に三相巻鉄心106全体の断面積を増加させて、磁束密度を低減することで損失および騒音を低減していた。 Conventionally, for the loss and noise, it and increasing the number of turns of the electromagnetic steel plates, such as using a wider electrical steel sheet width, mainly by increasing the cross-sectional area of ​​the entire three-phase wound core 106, the magnetic flux It had reduced losses and noise by reducing the density.

【0008】 [0008]

【発明が解決しようとする課題】上記従来の変圧器10 The object of the invention is to be Solved by the conventional transformer 10
1の三相巻鉄心106において、磁束密度を低減するために電磁鋼板の巻回数の増加やより幅の広い電磁鋼板を使用すると、三相巻鉄心106の継鉄部や脚部の寸法および重量が増加する。 In one three-phase wound core 106, using the wide electrical steel sheet width increases and more of the number of turns of the electromagnetic steel plates in order to reduce the magnetic flux density, size and weight of the yoke portions and the leg portions of the three-phase wound core 106 There is increased. 従って、寸法を大きくすることは省スペース化および省資源化に反し、重量を重くすることは搬送等が困難になる。 Therefore, increasing the size contrary to space saving and resource saving, to increase the weight is transported or the like becomes difficult.

【0009】また、使用材料が増加することにより、資源の消費量や材料を製造するためのエネルギー消費量が増加するなど環境面に対する問題点を有していた。 [0009] Also, by using material increases, the energy consumption for the production of consumption and material resources has been a problem for environmental, etc. increases.

【0010】本発明は上記問題点を解決するもので、電磁鋼板の使用量の増加を抑制し、低損失で省資源かつ低騒音で環境に優しい静止誘導電磁機器を提供することを目的とする。 [0010] The present invention is intended to solve the above problems, to suppress the increase in the amount of electrical steel sheet, and an object thereof is to provide a friendly stationary induction apparatus in environmental resource saving and low noise at low loss .

【0011】 [0011]

【課題を解決するための手段】上記目的を達成するために、本発明の第1の静止誘導電磁機器は、電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心と、前記三相巻鉄心の継鉄部の積み厚方向に配された磁性材とを備えたものである。 To achieve the above object, according to the Invention The first stationary induction apparatus of the present invention consists of two inner wound iron core formed by laminating magnetic steel sheets and one outer wound core three and phase winding core, wherein those with a three-phase wound core yoke portions of the stacked thickness direction provided a magnetic material.

【0012】また、本発明の第2の静止誘導電磁機器は、第1の静止誘導電磁機器において、磁性材は三相巻鉄心上に配されたものである。 Further, the second stationary induction apparatus of the present invention, in the first stationary induction apparatus, the magnetic material is one arranged on the three-phase winding core.

【0013】また、本発明の第3の静止誘導電磁機器は、第1の静止誘導電磁機器において、磁性材は剛性を有すると共に、内側巻鉄心の外周面と外側巻鉄心の内周面との間に配されたものである。 [0013] The third stationary induction apparatus of the present invention, in the first stationary induction apparatus, the magnetic material has a stiffness, the outer peripheral surface and the inner peripheral surface of the outer wound core inside the winding core those disposed between.

【0014】また、本発明の第4の静止誘導電磁機器は、第1の静止誘導電磁機器において、磁性材は内側巻鉄心の継鉄部の内周面の平坦部分に配されたものである。 [0014] The fourth stationary induction apparatus of the present invention, in the first stationary induction apparatus, but the magnetic material arranged on the flat portion of the inner peripheral surface of the yoke portion of the inner winding core .

【0015】また、本発明の第5の静止誘導電磁機器は、第1の静止誘導電磁機器において、磁性材は少なくとも内側巻鉄心の角部を含む継鉄部の内周面に沿わせて配されたものである。 Further, the fifth stationary induction apparatus of the present invention, in the first stationary induction apparatus, and the magnetic material is placed along the inner peripheral surface of the yoke portion including the corner portion of at least the inner winding core distribution it is those that have been.

【0016】また、本発明の第6の静止誘導電磁機器は、電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心と、前記三相巻鉄心の継鉄部の側面に配した磁性材とを備えたものである。 Further, the sixth stationary induction apparatus of the present invention includes a three-phase wound core consisting of two inner wound iron core and one outer winding core formed by laminating magnetic steel sheets, following the three-phase wound core it is obtained by a magnetic material arranged on the side surface of the iron part.

【0017】また、本発明の第7の静止誘導電磁機器は、第6の静止誘導電磁機器において、磁性材は継鉄部に沿った方向の端部が傾斜したものである。 [0017] The seventh stationary induction apparatus of the present invention, in the sixth stationary induction apparatus, the magnetic material is one in which the end portion in the direction along the yoke portion is inclined.

【0018】また、本発明の第8の静止誘導電磁機器は、第1から第7の静止誘導電磁機器のいずれかにおいて、磁性材が電磁鋼板の積層物としたものである。 [0018] Eighth stationary induction apparatus of the invention, in the first one of the seventh stationary induction apparatus, in which magnetic material is a laminate of electromagnetic steel plates.

【0019】また、本発明の第9の静止誘導電磁機器は、第1から第8の静止誘導電磁機器のいずれかにおいて、磁性材の透磁率が巻鉄心を構成する電磁鋼板の透磁率より大きくしたものである。 Further, ninth stationary induction apparatus of the invention, in the first one of the eighth stationary induction apparatus is greater than the magnetic permeability of the magnetic steel sheets permeability of the magnetic material constituting the wound core one in which the.

【0020】また、本発明の第10の静止誘導電磁機器は、第9の静止誘導電磁機器において、磁性材がフェライトまたはパーマロイとしたものである。 Further, the 10 stationary induction apparatus of the present invention, in the ninth stationary induction apparatus, in which magnetic material is a ferrite or permalloy.

【0021】また、本発明の第11の静止誘導電磁機器は、電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心であって、前記三相巻鉄心の継鉄部の少なくとも一部の幅寸法が前記三相巻鉄心の脚部の幅寸法より大きくしたものである。 Further, the 11 stationary induction apparatus of the present invention is a three-phase wound core consisting of two inner wound iron core and one outer winding core formed by laminating magnetic steel sheets, the three-phase wound core at least a portion of the width of the yoke portion is made larger than the width of the legs of the three-phase wound core.

【0022】また、本発明の第12の静止誘導電磁機器は、第10の静止誘導電磁機器において、脚部の幅寸法より大きい継鉄部に沿った方向の端部が傾斜したものである。 Further, twelfth static induction device of the present invention, in the tenth stationary induction apparatus, in which an end portion in a direction along the width dimension larger than the yoke portions of the leg portions is inclined.

【0023】 [0023]

【発明の実施の形態】本発明の第1の静止誘導電磁機器によれば、電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心と、前記三相巻鉄心の継鉄部の積み厚方向に配された磁性材とを備えたため、 According to a first stationary induction apparatus of the embodiment of the present invention, a three-phase wound core consisting of two inner wound iron core and one outer winding core formed by laminating magnetic steel sheets, the three-phase since having arranged in the stacking thickness direction of the yoke portion of the wound core and a magnetic material,
脚部を通った磁束が、磁性材を配した継鉄部および継鉄部に配した磁性材に流れ、磁性材を配した継鉄部の磁束密度が低減し、磁束密度の増加に伴い増加する損失および騒音を低減する作用を有する。 Magnetic flux through the legs, yoke section provided with magnetic material and flows to the magnetic material arranged on the yoke portion, to reduce the magnetic flux density of the yoke section provided with magnetic material, increases with increasing magnetic flux density having loss and effect of reducing the noise to.

【0024】また、本発明の第2の静止誘導電磁機器によれば、第1の静止誘導電磁機器において、磁性材は三相巻鉄心上に配されたものであり、脚部を通った磁束が、三相巻鉄心上に配された磁性材に流れ、磁性材を配した三相巻鉄心の磁束密度が低減するため、磁束密度の増加に伴い増加する損失および騒音を低減する作用を有する。 Further, according to the second stationary induction apparatus of the present invention, the first stationary induction apparatus, the magnetic material has been arranged in a three-phase winding core, the magnetic flux passing through the leg but flows to the magnetic material arranged in three-phase winding core, in order to reduce the magnetic flux density of the three-phase wound core which arranged magnetic material has the effect of reducing the loss and noise increase with increasing flux density .

【0025】また、本発明の第3の静止誘導電磁機器によれば、第1の静止誘導電磁機器において、磁性材は剛性を有すると共に、内側巻鉄心の外周面と外側巻鉄心の内周面との間に配されたため、継鉄部の電磁鋼板のたるみを低減すると共に、脚部を通った磁束が、磁性材を配した継鉄部および継鉄部に配した磁性材に流れ、磁性材を配した継鉄部の磁束密度が低減する。 Further, according to the third stationary induction apparatus of the present invention, the first stationary induction apparatus, the magnetic material has a rigid, inner peripheral surface of the outer peripheral surface and the outer wound core inside the winding core because it disposed between, while reducing the slack of the magnetic steel sheets of the yoke portion, magnetic flux passing through the leg portion to flow to the magnetic material arranged on the yoke and yoke section provided with magnetic material, the magnetic the magnetic flux density of the yoke section provided with wood is reduced. そのため、第1 Therefore, the first
の静止誘導電磁機器よりさらに損失および騒音を低減する作用を有する。 It has the effect of reducing further loss and noise than the static induction device.

【0026】また、本発明の第4の静止誘導電磁機器によれば、第1の静止誘導電磁機器において、磁性材は内側巻鉄心の継鉄部の内周面の平坦部分に配されたため、 Further, according to the fourth stationary induction apparatus of the present invention, the first stationary induction electromagnetic devices, since the magnetic material arranged on the flat portion of the inner peripheral surface of the yoke portion of the inner winding core,
巻鉄心は内側ほど磁路長が短く、磁路長に比例する磁気抵抗が小さいので内側ほど磁束が流れやすく、磁束密度は内側ほど高い。 Wound core has a short inner enough magnetic path length, the magnetic resistance is proportional to the magnetic path length is less likely that magnetic flux more inner flow, the magnetic flux density is higher inside. そして、磁束密度が高いほど透磁率が低くなるので、継鉄部の外側に磁性材を配した場合よりも、継鉄部の窓側に配した方が磁性材に磁束が流れやすくなり、脚部を通った磁束が、磁性材を配した継鉄部および継鉄部に配した磁性材に流れ、磁性材を配した継鉄部の磁束密度が低減する。 Since more magnetic flux density is high permeability is lower, than when arranged magnetic material on the outside of the yoke portion, it is easily magnetic flux flows in the magnetic material arranged on the window side of the yoke portion, the leg portion flux passing through the found yoke section provided with magnetic material and flows to the magnetic material arranged on the yoke, the magnetic flux density of the yoke section provided with magnetic material is reduced. そのため、第1の静止誘導電磁機器よりさらに損失および騒音を低減する作用を有する。 Therefore, with the effect of reducing further loss and noise than the first stationary induction electromagnetic equipment.

【0027】また、本発明の第5の静止誘導電磁機器によれば、第1の静止誘導電磁機器において、磁性材は少なくとも内側巻鉄心の角部を含む継鉄部の内周面に沿わせて配されたため、脚部から継鉄部に流れた磁束が、継鉄部から継鉄部に配した磁性材に流れるよりも、脚部から直接磁性材に磁束が流れるので、磁束が前述の第3の静止誘導電磁機器よりも容易に磁性材に流れ、磁性材を配した継鉄部の磁束密度が低減する。 Further, according to the fifth stationary induction apparatus of the present invention, the first stationary induction apparatus, the magnetic material is placed along the inner peripheral surface of the yoke portion including the corner portion of at least the inner winding core since arranged Te, magnetic flux flows in the yoke portion from the leg, than through the magnetic material arranged in the yoke portion from the yoke portion, since the magnetic flux flows directly the magnetic material from the leg portion, the magnetic flux of the foregoing flows to the third stationary induction readily magnetic material than the electromagnetic device, the magnetic flux density of the yoke section provided with magnetic material is reduced. そのため、第1、 Therefore, first,
第4の静止誘導電磁機器よりさらに損失および騒音を低減する作用を有する。 It has the effect of reducing further loss and noise than the fourth stationary induction apparatuses.

【0028】また、本発明の第6の静止誘導電磁機器によれば、電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心と、前記三相巻鉄心の継鉄部の側面に配した磁性材とを備えたため、第1の静止誘導電磁機器と同様の作用に加え、磁性体を配した継鉄部に電磁鋼板の重なり部分がある場合は、その積層面に空気層が含まれるため、磁気抵抗が高くなるため、この積層方向の磁束の流れに比べ、水平方向の方は継鉄部と磁性材の接触面のみしか空気層を含まないので磁気抵抗が少なく、磁束の流れが多い。 Moreover, the according to the 6 stationary induction electromagnetic device, a three-phase wound core consisting of two inner wound iron core and one outer winding core formed by laminating magnetic steel sheets, the three-phase wound core of the present invention because of a magnetic material arranged on the side surface of the yoke portion of, in addition to the effects similar to those of the first stationary induction apparatus, if there is an overlap portion of the electromagnetic steel sheets in the yoke section provided with magnetic material, the since an air layer included in the multilayer surface, since the magnetic resistance is higher, than in the flow of magnetic flux in the laminated direction, since only a contact surface of the horizontal direction towards the yoke portion and a magnetic member does not include an air layer magnetic resistance is less, often the flow of magnetic flux. そのためこの磁束が継鉄部から側面に配した磁性材に容易に流れ、磁性材を配した継鉄部の磁束密度が低減される。 Therefore the magnetic flux flows easily to the magnetic material arranged on the side surface from the yoke portion, magnetic flux density of the yoke section provided with magnetic material is reduced. よって、この場合は、第1、第2の静止誘導電磁機器よりさらに損失および騒音を低減する作用を有する。 Thus, this case has the effect of reducing the first, further losses and noise than the second stationary induction apparatus.

【0029】また、本発明の第7の静止誘導電磁機器によれば、第6の静止誘導電磁機器において、磁性材は継鉄部に沿った方向の端部が傾斜しているため、継鉄部から磁性材に流れる磁束は磁性材に対して直角に入ることは無いので、磁性材の端部を傾斜しても磁束の流れにほとんど影響せず、第6の静止誘導電磁機器よりも少ない材料とすることにより省資源化を実現すると共に、第5 Further, according to the seventh stationary induction apparatus of the present invention, in the sixth stationary induction apparatus, since the end portion of the direction the magnetic material along the yoke portion is inclined, the yoke the magnetic flux flowing from parts in the magnetic material will not enter the right angles to the magnetic material, even inclined ends of the magnetic material with little effect on the flow of the magnetic flux, less than the sixth stationary induction apparatus it is possible to realize resource saving by a material, fifth
の静止誘導電磁機器同様に継鉄部の磁束密度を低減する。 Reducing the magnetic flux density of the static induction apparatus Similarly yoke of. そのため、第1、第3の静止誘導電磁機器よりさらに損失および騒音を低減する作用を有する。 Therefore, having an effect of reducing the first and further loss and noise from the third stationary induction electromagnetic devices.

【0030】また、本発明の第8の静止誘導電磁機器によれば、第1から第7の静止誘導電磁機器のいずれかにおいて、夫々の作用に加え、磁性材が電磁鋼板の積層物であるため、磁性材の厚さを容易に所望の厚さにすることができ、電磁鋼板の積層数を増減することにより、鉄損などの特性および経済性を考慮した最適な鉄心を構成することができる。 Further, according to the eighth stationary induction apparatus of the present invention, in a first one of the seventh stationary induction apparatus, in addition to the function of the respective magnetic material is a laminate of electromagnetic steel plates Therefore, the thickness of the magnetic material can be easily set to a desired thickness, by increasing or decreasing the number of stacked electromagnetic steel sheets, it is possible to configure the optimal core in consideration of the properties and economy, such as iron loss it can.

【0031】また、本発明の第9の静止誘導電磁機器によれば、第1から第8の静止誘導電磁機器のいずれかにおいて、磁性材の透磁率が巻鉄心を構成する電磁鋼板の透磁率より大きくしたため、磁性材の透磁率が大きいことにより継鉄部の磁束がより容易に磁性材に流れ、脚部からの磁束が継鉄部および磁性材に流れることにより磁性材を配した継鉄部の磁束密度が低減する。 Further, according to the ninth stationary induction apparatus of the present invention, in a first one of the eighth stationary induction apparatus, the magnetic permeability of the magnetic steel sheets permeability of the magnetic material constituting the wound core because of the larger, the magnetic flux of the yoke portion by a large magnetic permeability of the magnetic material to flow more readily magnetic material, the magnetic flux from the leg portion is arranged magnetic material by flowing through the yoke portion and a magnetic material yoke the magnetic flux density of the parts is reduced. そのため、 for that reason,
第1から第8の静止誘導電磁機器よりさらに損失および騒音を低減する作用を有する。 The first has the effect of reducing further loss and noise from the eighth stationary induction apparatuses.

【0032】また、本発明の第10の静止誘導電磁機器によれば、第9の静止誘導電磁機器において、磁性材がフェライトまたはパーマロイとしたため、透磁率が電磁鋼板より大きく、磁束がより容易に磁性材に流れ、脚部からの磁束が継鉄部および磁性材に流れることにより磁性材を配した継鉄部の磁束密度が低減する。 Further, according to the 10 static induction device of the present invention, in the ninth stationary induction apparatus, since the magnetic material is a ferrite or Permalloy magnetic permeability is greater than the electromagnetic steel sheets, the magnetic flux is more easily flows in the magnetic material, the magnetic flux from the leg magnetic flux density of the yoke section provided with magnetic material is reduced by flowing the yoke portion and a magnetic material. そのため、 for that reason,
第8の静止誘導電磁機器よりさらに損失および騒音を低減することができる。 It can be reduced further losses and noise than the 8 stationary induction apparatuses.

【0033】また、本発明の第11の静止誘導電磁機器によれば、電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心であって、前記三相巻鉄心の継鉄部の少なくとも一部の幅寸法が前記三相巻鉄心の脚部の幅寸法より大きくしたため、脚部から継鉄部に流れる磁束は幅が広くなっている部分にも流れ、継鉄部において磁束密度が低減され、幅一定の電磁鋼板を巻回した巻鉄心および巻鉄心に磁性材料を配した場合と比べて鉄損および騒音が低減される。 Further, according to the 11 static induction device of the present invention, there is provided a three-phase wound core consisting of two inner wound iron core and one outer winding core formed by laminating magnetic steel sheets, the three-phase since at least part of the width of the yoke portion of the wound core is greater than the width of the legs of the three-phase wound core, the magnetic flux flowing through the yoke portion from the leg portion also flows into the portion where the width is wider, yoke portion flux density is reduced in the iron loss and noise are reduced as compared with the case of arranging the magnetic material to the winding core and wound core by winding a constant width of the electromagnetic steel sheets.

【0034】また、本発明の第12の静止誘導電磁機器によれば、第10の静止誘導電磁機器において、脚部の幅寸法より大きい継鉄部に沿った方向の端部が傾斜したため、継鉄部の脚部と同じ幅の部分から脚部より幅の広い部分に流れる磁束は脚部より幅の広い部分に対して直角に入ることは無いので、継鉄部を構成する電磁鋼板の角部を傾斜しても磁束の流れにはほとんど影響せず、第10の静止誘導電磁機器よりより少ない材料で省資源化を実現すると共に、第10の静止誘導電磁機器と同様に継鉄部の磁束密度を低減する。 Further, according to the 12 static induction device of the present invention, in the tenth stationary induction apparatus, since the end portions in the direction along the width dimension larger than the yoke portion of the leg portion is inclined, joint since it is not magnetic flux from the portion of the same width as the leg portions of the iron portion flows through the wider portion than legs entering at right angles to the wide portion of from legs, the corner of the electromagnetic steel plates constituting the yoke portion be inclined parts little effect on the flow of the magnetic flux, it is possible to realize resource saving with less material than the 10 static induction device, the yoke portion similarly to the tenth stationary induction apparatus to reduce the magnetic flux density. そのため、第1から第9 Therefore, the first to 9
の静止誘導電磁機器よりさらに損失および騒音を低減する作用を有する。 It has the effect of reducing further loss and noise than the static induction device.

【0035】以下、図を用いて説明する。 [0035] In the following, it will be described with reference to FIG.

【0036】(実施の形態1)図1および図2に、本発明の実施の形態1における静止誘導電磁機器の変圧器の概略構成斜視図および概略構成正面図を示す。 [0036] (Embodiment 1) Figure 1 and Figure 2 shows a schematic perspective view and a schematic structural front view of a transformer of a stationary induction apparatus in the first embodiment of the present invention.

【0037】図1および図2において、1は電磁鋼板を巻回して積層された三相巻鉄心、2は三相巻鉄心1を構成する第1の内側巻鉄心、3は三相巻鉄心1を構成する第2の内側巻鉄心、4は第1の内側巻鉄心2と第2の内側巻鉄心3の外側に位置し三相巻鉄心1を構成する外側巻鉄心、5は導体を巻回した電流を通電するためのコイルで三相巻鉄心1の脚部に巻かれ、6は三相巻鉄心1の上部の継鉄部に配置した磁性材である。 [0037] In Figures 1 and 2, 1 is a three-phase wound core stacked by winding a magnetic steel sheet, 2 a first inner wound core constituting a three-phase wound core 1, 3 a three-phase wound core 1 the second inner wound core constituting the outer wound cores constituting the located outside the three-phase wound core 1 of the first inner wound iron core 2 and the second inner wound iron core 3 is 4, the winding conductor 5 and current wound on the legs of the three-phase winding core 1 with a coil for energizing was, 6 is a magnetic material disposed in the yoke portion of the top of the three-phase wound core 1.

【0038】ここで、継鉄部とは、第1の内側巻鉄心2 [0038] Here, the yoke portion, the first inner wound cores 2
および第2の内側巻鉄心3および外側巻鉄心4の角部を外周方向に45度の角度で区切った場合のコイル5を巻回していない部分をいい、また、コイル5を巻回している部分を脚部という。 And second corner portions of the inner winding core 3 and the outer winding core 4 refers to the portion that is not turning the coil 5 wound in the case, separated by an angle of 45 degrees to the outer peripheral direction, the portion that turning the coil 5 wound that the leg.

【0039】本実施の形態1において、磁性材6は、幅が三相巻鉄心1の電磁鋼板と同じで、長さは三相巻鉄心1の上部の継鉄部の外周面における継鉄部の直線の長さと同じにしたもので、継鉄部に沿った方向の長さを順に短くして台形状に積層している。 [0039] In the first embodiment, the magnetic material 6 has a width the same as the electrical steel sheet of the three-phase wound core 1, the length yoke portion of the outer peripheral surface of the yoke portion of the three-phase wound core 1 upper of obtained by a straight line the same as the length, it is laminated in turn shortened by trapezoidal direction of length along the yoke portion.

【0040】以上のように構成した静止誘導電磁機器について説明する。 [0040] will be described more stationary induction electromagnetic device as constructed. コイル5に電圧が印加されるとコイル5に励磁電流が流れ、この励磁電流により三相巻鉄心1 When a voltage is applied to the coil 5 exciting current flows through the coil 5, this exciting current three-phase wound core 1
の内部に磁束が通じる。 Internal to the magnetic flux is lead of. この磁束により、三相巻鉄心1 This flux, three-phase wound core 1
において、ヒステリシス損と渦電流損からなる鉄損が発生し、また、変圧器騒音の主な原因である電磁鋼板の伸縮である磁歪により振動が生じて騒音を発生する。 In the iron loss consisting hysteresis loss and eddy current loss is generated, also, the vibration by the expansion and contraction at a magnetostriction of electrical steel sheets is a major cause of transformer noise is generated noise occurs. これら鉄損および騒音は三相巻鉄心1の磁束密度が高いほど大きくなる。 These iron loss and noise increases as the magnetic flux density of the three-phase wound core 1 is high.

【0041】例えば、方向性電磁鋼板の場合、コストおよび磁化特性等を考慮して一般的に磁束密度を1.7T [0041] For example, when the oriented electrical steel sheet, the general magnetic flux density in view of the cost and magnetic properties such as 1.7T
(テスラー)程度に設計されているが、この理由は磁束密度が1.7T付近になると磁束密度の増加に伴い鉄損の増加量が大きくなる特性を示すからである。 Are designed to (tesla) degree, the reason is because showing a larger characteristic increase in iron loss with the increase of the magnetic flux density and the magnetic flux density is in the vicinity of 1.7 T.

【0042】上記構成において、継鉄部に沿った方向の長さが異なる電磁鋼板を積層した磁性材6を三相巻鉄心1の上部の継鉄部に配置しているので、脚部から継鉄部に流れた磁束は三相巻鉄心1だけではなく磁性材6にも流れ、磁性材6を配置した継鉄部において磁束密度が低減され、磁性材6が無い場合と比べて磁束密度の増加により増加する鉄損および騒音が低減される。 [0042] In the above arrangement, since the length in the direction along the yoke portion is disposed on the yoke portion of the top of the different electrical steel magnetic material 6 a three-phase wound core 1 formed by laminating, joint from the leg portion the magnetic flux flows in the iron portion also flows into the magnetic member 6 not only the three-phase wound core 1, the magnetic flux density decreased in the yoke portion arranged magnetic material 6, the magnetic flux density as compared with the case the magnetic material 6 is not iron loss and noise increase due to the increase is reduced.

【0043】以上のように、長さの異なる電磁鋼板を積層した磁性材6を三相巻鉄心1の継鉄部に配置したことにより、磁性材6を配置した継鉄部の磁束密度を低減し、磁性材6の重量分だけ電磁鋼板の総重量は増加するが、一般的に方向性電磁鋼板において磁束密度が1.7 [0043] As described above, by disposing the magnetic member 6 formed by laminating different electromagnetic steel lengths in the yoke portion of the three-phase wound core 1, reduces the magnetic flux density of the yoke portion arranged magnetic material 6 and, only the weight fraction of the magnetic material 6 total weight of the electromagnetic steel sheet is increased, the magnetic flux density in a commonly oriented electrical steel sheet 1.7
T付近では磁束密度の増減による鉄損増減の変化が大きい領域であり、磁束密度の低下による鉄損の低下量が大きいので、継鉄部の磁束密度を低減したことにより継鉄部の鉄損を低減でき、磁性材6を含めた三相巻鉄心1全体でみた場合の鉄心全体としての鉄損を低減することができる。 In the vicinity of T an area large change in iron loss increases or decreases by increasing or decreasing the magnetic flux density, the amount of decrease in the iron loss due to lowering of the magnetic flux density is large, the iron loss of the yoke portion by a reduced magnetic flux density of the yoke portion the can be reduced, it is possible to reduce iron loss of the entire core as viewed in the entire three-phase wound core 1 including the magnetic material 6.

【0044】鉄損は負荷に関係なく機器の電圧印加時に常時発生する損失なので、これを低減することは機器の省エネルギー化に対して非常に重要である。 [0044] Since loss Iron loss which occurs always when a voltage is applied in the device regardless of the load, it is very important for energy saving of equipment to reduce it.

【0045】また、三相巻鉄心1は、1枚の電磁鋼板を巻回し継鉄部で一部を重ね合せ、複数枚の電磁鋼板を同様に巻回積層して形成されているため、騒音の主な発生箇所は、電磁鋼板を巻回して積層する継ぎ目を有し、たるみ等が生じやすい継鉄部であり、この継鉄部の磁束密度を低減することにより電磁鋼板の伸縮である磁歪を低減でき、これにより三相巻鉄心1全体の騒音を低減することができる。 Further, the three-phase wound core 1, which is formed by stacking similarly wound a single electromagnetic steel superimposed part in winding yoke portion, a plurality of electromagnetic steel plates, noise the main occurrence point has a seam to be stacked by winding a magnetic steel sheet, a sagging or the like easily occurs yoke, a stretch of electrical steel by reducing the magnetic flux density of the yoke portion magnetostriction the can be reduced, thereby reducing the noise of the entire three-phase wound core 1.

【0046】上記のように、長さの異なる電磁鋼板を積層した磁性材6を三相巻鉄心1の上部外周面の継鉄部に配置したことにより、従来のように、磁束密度を低下させるために鉄心を構成する電磁鋼板の巻き数を増やしたり、より幅の広い電磁鋼板を使用することにより、鉄心の全ての脚部と継鉄部の断面積を増加させ、それに伴い、鉄心との絶縁および冷却に必要な距離を介して巻回されているコイル5の寸法が大きくなり、またコイル5 [0046] As described above, by disposing the magnetic member 6 of laminated magnetic steel sheets of different lengths in the yoke portion of the upper outer peripheral surface of the three-phase wound core 1, as in the prior art, it reduces the magnetic flux density or increasing the number of turns of the electromagnetic steel plates constituting the iron core in order, by using a wider electrical steel sheet width, to increase the cross-sectional area of ​​all of the legs and the yoke portion of the iron core, with it, the core and the the dimensions of the coil 5 is wound over the distance required for insulation and cooling is increased, also the coil 5
の使用材料が増加する場合と比べて、三相巻鉄心1とコイル5の仕様は変更せず磁性材を付加するだけであるので、従来に比べて軽量かつ省資源で、磁性材を配置しない場合と比べて鉄損が少なく騒音の低い環境に優しい静止誘導電磁機器を実現することができる。 As compared to the case where the material used is increased, since the specifications of the three-phase winding core 1 and the coil 5 is only added to the magnetic material without changing light-weight and resource saving compared to conventional, not place magnetic material If it is possible to realize a gentle stationary induction apparatus in low environmental iron loss of less noise compared with.

【0047】また、変圧器の組み立て時、三相巻鉄心1 [0047] In addition, during the assembly of the transformer, three-phase wound core 1
の騒音が大きい場合、騒音を低減するために鉄心の再焼鈍や組み立て直しが必要となることがあり、再焼鈍などによる余分なエネルギーの消費や工数が必要であったが、単に磁性材を付加するだけで低騒音を実現することができ、省エネルギー化をはかることができる。 If noise is large, it may be necessary to re-annealing and reassembly of the core in order to reduce noise, but consumption and manpower extra energy due reannealing were required, simply adding a magnetic material alone can achieve low noise, it is possible to achieve energy saving.

【0048】なお、磁性材6は長さの同じ電磁鋼板を積層したものでも良いが、磁束は三相巻鉄心1の脚部から継鉄部および磁性材6に流れる場合、磁性材6内に直角に近い角度で流れ込むことはないので、継鉄部側から順に長さが短くなる電磁鋼板を積層し磁性材6の端部を傾斜させて、その外形を流線型に近似させることにより、 [0048] Incidentally, the magnetic material 6 may be a stack of the same electromagnetic steel plate length, if the magnetic flux flowing through the yoke portion and a magnetic member 6 from the leg portion of the three-phase wound core 1, the magnetic material 6 because does not flow at a right angle near the angle, by laminating electromagnetic steel sheets in sequence length becomes shorter from the yoke portion is inclined end portion of the magnetic member 6, to approximate the contour streamlined,
長さが同じ電磁鋼板を積層した場合より少ない材料で同様の効果を得ることができ、省資源で環境に優しい静止誘導電磁機器を実現することができる。 Can length the same effect with less material than when stacking the same electromagnetic steel plates, it is possible to realize a gentle stationary induction apparatus in environmental resource saving.

【0049】また、本実施の形態1においては、磁性材6は長さの異なる電磁鋼板を積層し、幅が三相巻鉄心1 [0049] In the first embodiment, the magnetic material 6 is laminated different electromagnetic steel lengths, widths three-phase wound core 1
の電磁鋼板と同じ幅で継鉄部に接する部分の長さが継鉄部の直線部の長さと同じとしたが、幅および継鉄部に接する部分の長さが異なるものでも、接触面積や積み厚により差異があり、これらが小さいほど効果が低減する傾向にあるが、低損失、低騒音の効果を得ることができる。 Of the length of the portion in contact with the yoke portion in the same width as the electrical steel sheet is the same as the length of the straight portion of the yoke, also have different lengths of the portion in contact with the width and yoke portions, the contact area Ya loading there is a difference depending on the thickness, but as they are small effect tends to decrease, it is possible to obtain low loss, the effect of noise.

【0050】また、本実施の形態1においては、三相巻鉄心1の継鉄部に配置する電磁鋼板を三相巻鉄心1の積層方向と同方向に接して積層した場合を示したが、三相巻鉄心1の継鉄部の外周部に配置する磁性材6を、三相巻鉄心1を構成する電磁鋼板の積層方向に対して垂直で、三相巻鉄心1を構成する電磁鋼板の継鉄部の外周内で幅方向に接して積層した方向性電磁鋼板とすることにより、磁性材6を配置した三相巻鉄心1の継鉄部から磁性材6に渡り、再び三相巻鉄心1に戻る磁束の流れる方向に対して、方向性電磁鋼板を三相巻鉄心1の積層方向と同方向に接して積層する場合と比べて、電磁鋼板の積層による空間部が三相巻鉄心1と接する部分のみとなり、空間部が少ないので磁気抵抗が小さくなり、三相巻鉄心1の電磁鋼板と同 [0050] In the first embodiment, although the case of laminating in contact with the stacking direction in the same direction of the electromagnetic steel sheet a three-phase wound core 1 disposed in the yoke portion of the three-phase wound core 1, the magnetic material 6 arranged on the outer periphery of the yoke portion of the three-phase wound core 1, perpendicular to the stacking direction of the electromagnetic steel plates constituting the three-phase wound core 1, the electromagnetic steel plates constituting the three-phase wound core 1 with directional electromagnetic steel plates laminated in contact with the width direction in the outer periphery of the yoke portion, over the magnetic material 6 from the yoke portion of the three-phase winding core 1 of arranging the magnetic material 6, again a three-phase wound core with respect to the direction of flow of the magnetic flux back to 1, as compared with the case of laminating in contact with the lamination direction the same as the direction of the grain-oriented electrical steel sheet a three-phase wound core 1, the space portion is a three-phase wound core by laminating electromagnetic steel plates 1 becomes only the portion in contact with, since less space magnetoresistance is reduced, the electromagnetic steel sheets of the three-phase wound core 1 向に積層する場合よりより大きな低損失および低騒音の効果を得ることができる。 It is possible to obtain a larger low loss and low noise effects than the case of stacking the direction.

【0051】ここで、長さにより効果に差異はあるが、 [0051] In this case, although there is a difference in effect by the length,
方向性電磁鋼板の長さは、長さが異なるものでも同じものでも低損失および低騒音の効果を得ることができる。 The length of the grain-oriented electrical steel sheet, even those that vary in length the same as it is also has the advantages of low loss and low noise.

【0052】(実施の形態2)図3に本発明の実施の形態2における静止誘導電磁機器として変圧器の概略構成図を示す。 [0052] shows a schematic diagram of a transformer as the stationary induction electromagnetic device according to the second embodiment of the present invention in FIG. 3 (Embodiment 2). 図3において、実施の形態1と同じ構成については同じ符号を付して詳細な説明を省略し、異なる部分を中心に以下説明する。 3, the same structure as in the first embodiment is omitted details are designated by the same reference numerals will be described below mainly different portions.

【0053】実施の形態1の構成と異なるのは三相巻鉄心1を構成する電磁鋼板の層間である第1の内側巻鉄心2および第2の内側巻鉄心3と外側巻鉄心4との間に剛性を有する磁性材21を配置した点である。 [0053] between the first inner wound iron core 2 and the second inner winding core 3 and the outer winding core 4 configuration is different from the embodiment 1 is an interlayer of electromagnetic steel plates constituting the three-phase wound core 1 a point obtained by placing the magnetic member 21 having a rigidity.

【0054】以上のように構成した静止誘導電磁機器としての変圧器について、説明する。 [0054] The transformer as the stationary induction electromagnetic device constructed as described above will be described. コイル5に電圧が印加されるとコイル5に励磁電流が流れ、この励磁電流により三相巻鉄心1の内部に磁束が通じる。 When a voltage is applied to the coil 5 exciting current flows through the coil 5, a magnetic flux is lead into the interior of the three-phase winding core 1 by the excitation current. この磁束により、三相巻鉄心1において、鉄損および騒音が発生する。 The magnetic flux in the three-phase wound core 1, the iron loss and noise is generated.

【0055】ここで、第1の内側巻鉄心2および第2の内側巻鉄心3と外側巻鉄心4との間に磁性材21を配置しているので、脚部から継鉄部に流れた磁束は三相巻鉄心1だけではなく磁性材21にも流れ、継鉄部において磁束密度が低減され、磁性材21が無い場合と比べて鉄損および騒音が低減される。 [0055] Here, since the arrangement of the magnetic material 21 between the first inner wound iron core 2 and the second inner winding core 3 and the outer winding core 4, the magnetic flux flowing to the yoke portion from the leg portion flows to the three-phase winding core 1 not only magnetic material 21, the magnetic flux density decreased in the yoke section, the iron loss and noise are reduced as compared with the case the magnetic material 21 is not provided.

【0056】以上のように、第1の内側巻鉄心2および第2の内側巻鉄心3と外側巻鉄心4との間に剛性を有する磁性材21を配置することにより、継鉄部の磁束密度を低減し、従来と比べて電磁鋼板の巻回数の増加や幅を大きくする等して重量や寸法を大きくすることを抑制し、従来と比べて軽量かつ省資源であり、鉄損が少なく騒音の低い環境に優しい静止誘導電磁機器鉄心を実現することができる。 [0056] As described above, by disposing the magnetic member 21 having a rigidity between the first inner wound iron core 2 and the second inner winding core 3 and the outer winding core 4, the magnetic flux density in the yoke portion reduced, as compared with the conventional suppressed increasing the equal to the weight and size to increase the growth and width of the winding number of the electromagnetic steel sheets, a lightweight and resource saving than conventional, iron loss is reduced noise it is possible to realize a gentle stationary induction apparatus core with low environment.

【0057】また、従来、第1の内側巻鉄心2および第2の内側巻鉄心3と外側巻鉄心4とで構成される継鉄部の三角形の空隙部14は、主に外側巻鉄心4のたるみが生じやすい箇所であり、このたるみが生じることにより電磁鋼板の磁気特性が悪化し損失の増加や、たるみにより電磁鋼板にビビリが生じ易くなり結果として騒音が大きくなることに対し、第1の内側巻鉄心2および第2の内側巻鉄心3と外側巻鉄心4との間に剛性を有する磁性材6を配置したことにより、このたるみを低減することができ、これにより鉄損および騒音を低減することができる。 [0057] Further, conventionally, the void portion 14 of the yoke portion of the triangle constituted by the first inner wound iron core 2 and the second inner winding core 3 and the outer winding core 4 is mainly the outer wound cores 4 sag a portion easily occur, growth and magnetic properties are deteriorated loss of electromagnetic steel sheets by the slack occurs to the noise as a result tends to occur is chatter electromagnetic steel sheet is increased by sagging, first by disposing the magnetic member 6 having a stiffness between the inner wound iron core 2 and the second inner winding core 3 and the outer winding core 4, it is possible to reduce this slack, thereby reducing the iron loss and noise can do.

【0058】(実施の形態3)図4に本発明の実施の形態3における静止誘導電磁機器として変圧器の概略構成図を示す。 [0058] shows a schematic diagram of a transformer as the stationary induction electromagnetic device according to a third embodiment of the present invention in FIG. 4 (Embodiment 3). 図4において、実施の形態1と同じ構成については同じ符号を付して詳細説明を省略し、異なる部分を中心に説明する。 4, the same structure as in the first embodiment is omitted details are designated by the same reference numerals will be described mainly different portions.

【0059】実施の形態1の構成と異なるのは、磁性材22を三相巻鉄心1の鉄心窓を構成する継鉄部の鉄心窓側に配置した点である。 [0059] The difference from the configuration in Embodiment 1 lies in that the magnetic material 22 disposed on the iron core window side of the yoke portion constituting the three-phase wound core 1 of the core window.

【0060】ここで、鉄心窓とは、第1の内側巻鉄心2 [0060] Herein, the iron core window, the first inner wound cores 2
の内方および第2の内側巻鉄心3の内方に存在する空間部分である。 It is inward and a second space portion existing inward of the inner wound core 3.

【0061】以上のように構成した静止誘導電磁機器としての変圧器について説明する。 [0061] The above manner will transformer as the stationary induction electromagnetic device configured will be described. コイル5に電圧が印加されるとコイル5に励磁電流が流れ、この励磁電流により三相巻鉄心1の内部に磁束が通じる。 When a voltage is applied to the coil 5 exciting current flows through the coil 5, a magnetic flux is lead into the interior of the three-phase winding core 1 by the excitation current. この磁束により、三相巻鉄心1において、鉄損および騒音が発生する。 The magnetic flux in the three-phase wound core 1, the iron loss and noise is generated.

【0062】ここで、三相巻鉄心1において、三相巻鉄心1の鉄心窓側の電磁鋼板ほど磁路長が短く磁気抵抗が小さいので、三相巻鉄心1内部の磁束の分布は内側ほど多くなり、内側の磁束密度が高くなる。 [0062] Here, in the three-phase wound core 1, the three-phase because the magnetic path length as the magnetic steel sheet of the core window side of the wound core 1 magnetic resistance is small short, three-phase wound core 1 distribution inside the magnetic flux inside so many becomes, the higher the inside of the magnetic flux density. 磁束密度が高い部分は磁束の通り易さを表す透磁率が小さくなるので磁束が通りにくくなり、近傍に透磁率の大きい部分が存在すると磁束は透磁率の大きい部分に流れる。 Portion flux density is high hardly passes magnetic flux because the permeability representing a street easiness of the magnetic flux is reduced, the magnetic flux is large portion of the magnetic permeability is present in the vicinity of the flow to large portions of the magnetic permeability.

【0063】そして、磁性材22を三相巻鉄心1の鉄心窓を構成する継鉄部の磁束密度が高い部分に近接する鉄心窓側に配置しているので、脚部から継鉄部に流れた磁束は継鉄部だけではなく磁性材22にも流れ、磁性材2 [0063] Then, the magnetic flux density in the yoke portion of the magnetic member 22 constituting a three-phase wound core 1 of the core window is disposed in the core window side proximate the higher portion, it flows into the yoke portion from the leg portion magnetic flux also flows through the magnetic member 22 not only yoke, the magnetic member 2
2を配置した継鉄部において磁束密度が低減され、磁性材22が無い場合および磁性材22を三相巻鉄心1の外周部に配置した場合と比べて、より磁束密度の増加に伴い増加する鉄損および騒音が低減される。 Is the magnetic flux density is reduced in the yoke portion disposed to 2, when the magnetic member 22 is not and the magnetic member 22 as compared with the case of arranging on the outer periphery of the three-phase wound core 1 increases with the increase of more magnetic flux density iron loss and noise is reduced.

【0064】以上のように、磁性材22を三相巻鉄心1 [0064] As described above, the magnetic material 22 a three-phase wound core 1
の鉄心窓を構成する継鉄部の鉄心窓側に配置することにより、磁性材22を配置した継鉄部の磁束密度を低減し、従来と比べて電磁鋼板の巻回数の増加や幅を大きくする等して重量、寸法を大きくすることを抑制し、従来と比べて軽量かつ省資源で、鉄損が少なく騒音の低い環境に優しい静止誘導電磁機器を実現することができる。 By placing the iron core window side of the yoke portion constituting the iron core window, to reduce the magnetic flux density of the yoke portion of arranging the magnetic material 22, to increase the growth and width of the winding number of the electromagnetic steel plates in comparison with the conventional weight by equally, to suppress increasing the size, light weight and resource saving than conventional, it is possible to realize a gentle stationary induction apparatus in low environmental iron loss of less noise.

【0065】また、三相巻鉄心1の鉄心窓側の電磁鋼板ほど磁路長が短いので、三相巻鉄心1内部の磁束の分布は内側ほど高くなり、内側の磁束密度が高くなる。 [0065] Further, since the three-phase wound core magnetic path length as the magnetic steel sheet of the core window-side 1 is short, the three-phase wound core 1 internal magnetic flux distribution becomes higher as the inner, the higher the inner magnetic flux density. そして、一般的に方向性電磁鋼板を使用する場合の設計磁束密度は1.7T程度としているが、三相巻鉄心1の平均の磁束密度は1.7T程度であっても、内側はそれ以上の磁束密度であり、実施の形態1で示したように、磁束密度が1.7T付近は磁束密度の増加に対して鉄損の増加が大きくなる領域であり、鉄損に対する影響が大きい。 Then, although the design flux density when using generally oriented electrical steel sheet is set to about 1.7 T, the average of the magnetic flux density of the three-phase winding core 1 be about 1.7 T, inside more of a magnetic flux density, as shown in the first embodiment, near the magnetic flux density is 1.7T is a region where an increase in iron loss increases with an increase in magnetic flux density, a large influence on iron loss.

【0066】従って、磁性材22を三相巻鉄心1の鉄心窓を構成する継鉄部の鉄心窓側に配置して継鉄部の鉄心窓側の磁束密度を低減することにより、鉄損の低減量を大きくすることができ、低鉄損化に対して大きな効果を得ることができる。 [0066] Therefore, by reducing the iron core window side of the magnetic flux density of the yoke portion of the magnetic material 22 disposed on the iron core window side of the yoke portion constituting the three-phase wound core 1 of the core window, low loss core loss can be increased, it is possible to obtain a large effect on low iron loss.

【0067】また、磁性材22を三相巻鉄心1の鉄心窓を構成する継鉄部の鉄心窓側に配置することにより、三相巻鉄心1の高さを高くすること無く低損失および低騒音の効果を得ることができる。 [0067] Also, by disposing the magnetic member 22 to the iron core window side of the yoke portion constituting the three-phase wound core 1 of the core window, without low loss and low noise by increasing the height of the three-phase wound core 1 it is possible to obtain an effect. そして、高さにあまり裕度がない設備の内部などに設置する場合に有利である。 Then, it is advantageous when installed in the interior of the height not much margin facilities.

【0068】(実施の形態4)図5に本発明の実施の形態4における静止誘導電磁機器として変圧器の部分概略構成図を示す。 [0068] shows a partial schematic diagram of a transformer as the stationary induction electromagnetic device according to a fourth embodiment of the present invention in FIG. 5 (Embodiment 4). 図5において、実施の形態3と同じ構成については同じ符号を付して詳細説明を省略し、異なる部分を中心に説明する。 5, the same configuration as the third embodiment is omitted details are designated by the same reference numerals will be described mainly different portions. 実施の形態3の構成と異なるのは、磁性材23を三相巻鉄心1の少なくとも継鉄部からコーナー部の鉄心窓側に沿わせて配置した点である。 Configuration differs from the the third embodiment lies in that arranged along a core window side of the corner portion of the magnetic member 23 from at least yoke portion of a three-phase wound core 1.

【0069】以上のように構成した静止誘導電磁機器としての変圧器について説明する。 [0069] will be described configuration the transformer as the stationary induction electromagnetic devices as described above. コイル5に電圧が印加されるとコイル5に励磁電流が流れ、この励磁電流により三相巻鉄心1の内部に磁束が通じる。 When a voltage is applied to the coil 5 exciting current flows through the coil 5, a magnetic flux is lead into the interior of the three-phase winding core 1 by the excitation current. この磁束により、三相巻鉄心1において、鉄損および騒音が発生する。 The magnetic flux in the three-phase wound core 1, the iron loss and noise is generated.

【0070】ここで、磁性材23を三相巻鉄心1の少なくとも継鉄部からコーナー部の鉄心窓側に沿わせて配置しているので、脚部および継鉄部からの磁束が磁性材2 [0070] Here, since the disposed along the core window side of the corner portion of the magnetic member 23 from at least yoke portion of a three-phase wound core 1, magnetic flux from the leg and yoke member 2
3に渡る面積が増え、継鉄部の鉄心窓側に沿わせて配置せず、継鉄部のみから磁性材23に磁束が渡る場合と比べ、脚部から継鉄部に流れる磁束は継鉄部だけでなく磁性材23にも滑らかに流れ、磁性材23を配置した継鉄部において磁束密度が低減され、磁性材23が無い場合や継鉄部の鉄心窓側に沿わせて配置していない場合と比べて、より鉄損および騒音が低減される。 Increasing the area over 3, without arranged along the core window side of the yoke portion, as compared with the case across the magnetic flux only from the yoke portion to the magnetic member 23, the magnetic flux flowing through the yoke portion from the leg yoke portion also smoothly flow into the magnetic member 23 as well, the magnetic flux density decreased in the yoke portion arranged magnetic material 23, if not disposed along the core window side when the magnetic material 23 is not or yoke portion compared with, iron loss and noise can be reduced more.

【0071】以上のように、磁性材23を三相巻鉄心1 [0071] As described above, the magnetic material 23 three-phase wound core 1
の少なくとも継鉄部からコーナー部の鉄心窓側に沿わせて配置することにより、磁性材23への磁束の流れをより滑らかにし、磁束が磁性材23に渡ることにより磁性材23を配置した継鉄部の磁束密度を低減し、従来と比べて電磁鋼板の巻回数の増加や幅を大きくする等して重量、寸法を大きくすることを抑制し、従来と比べて軽量かつ省資源であり、鉄損が少なく騒音の低い環境に優しい静止誘導電磁機器を実現することができる。 By disposed along the core window side of the corner portion at least from the yoke portion, the flow of magnetic flux to the magnetic material 23 smoother, magnetic flux is arranged magnetic material 23 by over magnetic material 23 yoke of reducing the magnetic flux density parts, equal to the weight increase and the width of the winding number is increased the electrical steel sheet as compared with conventional, to suppress increasing the size, a light weight and resource saving compared to conventional, iron loss can be achieved friendly stationary induction apparatus in less low noise environments.

【0072】(実施の形態5)図6に本発明の実施の形態5における静止誘導電磁機器として変圧器の部分概略構成図を示す。 [0072] shows a partial schematic diagram of a transformer as the stationary induction electromagnetic device according to a fifth embodiment of the present invention in FIG. 6 (Embodiment 5). 図6において、実施の形態4と同じ構成については同じ符号を付して詳細説明を省略し、異なる部分を中心に説明する。 6, the same configuration as the fourth embodiment is omitted details are designated by the same reference numerals will be described mainly different portions.

【0073】実施の形態4の構成と異なるのは、磁性材24が巻鉄心側ほど長さが短い長さの異なる電磁鋼板の積層物で、長さの異なる電磁鋼板を積層することにより三相巻鉄心1の継鉄部の鉄心窓側に沿わせた形状とした点である。 [0073] The configuration is different from the embodiment 4, the three-phase by magnetic material 24 is a laminate of different electromagnetic steel plates is shorter in length length as wound core side, laminating different electromagnetic steel lengths a point obtained by a shape along a core window side of the yoke portion of the wound core 1.

【0074】以上のように構成した静止誘導電磁機器としての変圧器について説明する。 [0074] will be described configuration the transformer as the stationary induction electromagnetic devices as described above. コイル5に電圧が印加されるとコイル5に励磁電流が流れ、この励磁電流により三相巻鉄心1の内部に磁束が通じる。 When a voltage is applied to the coil 5 exciting current flows through the coil 5, a magnetic flux is lead into the interior of the three-phase winding core 1 by the excitation current. この磁束により、三相巻鉄心1において、鉄損および騒音が発生する。 The magnetic flux in the three-phase wound core 1, the iron loss and noise is generated.

【0075】ここで、磁性材24が巻鉄心側ほど長さが短い長さの異なる電磁鋼板の積層物で、長さの異なる電磁鋼板を積層することにより三相巻鉄心1の継鉄部の鉄心窓側に沿わせた形状としているので、脚部から継鉄部に流れた磁束は三相巻鉄心1の継鉄部だけでなく磁性材24にも滑らかに流れ、磁性材24を配置した継鉄部において磁束密度が低減され、磁性材24が無い場合や継鉄部の鉄心窓側に沿わせていない場合と比べて鉄損および騒音が低減される。 [0075] Here, the magnetic material 24 is a laminate of different electromagnetic steel plates is shorter in length length as wound core side of the three-phase winding core 1 by stacking the different electromagnetic steel lengths of the yoke portion since the shape along a core window side, the magnetic flux flowing to the yoke portion from the leg portion flows smoothly to the magnetic material 24 as well as yoke portions of the three-phase wound core 1, passage placing the magnetic member 24 reduced magnetic flux density in the iron portion, the iron loss and noise are reduced as compared with the case not along a core window side in the absence of magnetic material 24 and the yoke portion.

【0076】以上のように、磁性材24が巻鉄心側ほど長さが短い長さの異なる電磁鋼板の積層物で、長さの異なる電磁鋼板を積層することにより三相巻鉄心1の継鉄部の鉄心窓側に沿わせた形状にしたことにより、磁性材24への磁束の流れをより滑らかにし、磁束が磁性材2 [0076] As described above, the yoke of the three-phase winding core 1 by the magnetic material 24 is a laminate of different electromagnetic steel plates is shorter in length length as wound core side, laminating different electromagnetic steel lengths by you shape along a core window side parts, the flow of magnetic flux to the magnetic material 24 smoother, flux magnetic material 2
4に渡ることにより磁性材24を配置した継鉄部の磁束密度を低減し、従来と比べて電磁鋼板の巻回数の増加や幅を大きくする等して重量、寸法を大きくすることを抑制し、従来と比べて軽量かつ省資源であり、鉄損が少なく騒音の低い環境に優しい静止誘導電磁機器を実現することができる。 Reducing the magnetic flux density of the yoke portion arranged magnetic material 24 by over 4, and the like to increase the growth and width of the winding number of the electromagnetic steel sheet weight, to suppress increasing the size as compared to conventional is lightweight and resource saving than conventional, it is possible to realize a gentle stationary induction apparatus in low environmental iron loss of less noise.

【0077】なお、電磁鋼板を用いるかわりに、フェライトやパーマロイを用いた場合は透磁率が電磁鋼板より大きいため、磁束がより容易に磁性材に流れ、脚部からの磁束が継鉄部および磁性材に流れることにより磁性材を配した継鉄部の磁束密度が低減する。 [0077] Incidentally, instead of using electromagnetic steel plates, since in the case of using ferrite or permalloy magnetic permeability greater than the electromagnetic steel sheets, the magnetic flux flows more readily magnetic material, the magnetic flux from the leg yoke portion and a magnetic the magnetic flux density of the yoke section provided with magnetic material is reduced by flowing through the wood. そのため、電磁鋼板よりさらに損失および騒音を低減することができる。 Therefore, it is possible to reduce further losses and noise than the electromagnetic steel sheets. また、一体のフェライトやパーマロイを用いるのが好適である。 Further, it is preferable to use an integral ferrite or permalloy.

【0078】(実施の形態6)図7および図8に本発明の実施の形態6における静止誘導電磁機器として変圧器の概略構成斜視図および概略構成側面図を示す。 [0078] shows a schematic configuration perspective view and a schematic structural side view of a transformer as the stationary induction electromagnetic device according to a sixth embodiment of the present invention in FIGS. 7 and 8 (sixth embodiment). 図7および図8において、実施の形態1と同じ構成については同じ符号を付して詳細説明を省略し、異なる部分を中心に説明する。 7 and 8, the same structure as in the first embodiment is omitted details are designated by the same reference numerals will be described mainly different portions. 実施の形態1の構成と異なるのは、磁性材25を三相巻鉄心1の継鉄部の側面に配置した点である。 Configuration differs from the Embodiment 1 lies in that the magnetic material 25 is disposed on the side surface of the yoke portion of the three-phase wound core 1.

【0079】以上のように構成した静止誘導電磁機器としての変圧器について説明する。 [0079] will be described configuration the transformer as the stationary induction electromagnetic devices as described above. コイル5に電圧が印加されるとコイル5に励磁電流が流れ、この励磁電流により三相巻鉄心1の内部に磁束が通じる。 When a voltage is applied to the coil 5 exciting current flows through the coil 5, a magnetic flux is lead into the interior of the three-phase winding core 1 by the excitation current. この磁束により、三相巻鉄心1において、鉄損および騒音が発生する。 The magnetic flux in the three-phase wound core 1, the iron loss and noise is generated.

【0080】ここで、三相巻鉄心1の継鉄部側面に磁性材25を継鉄部と同様に鉛直方向に積層して配置しているので、例えば、磁性体を配した継鉄部に電磁鋼板の重なり部分がある場合はその積層面に空気層が含まれるため磁気抵抗が高くなる積層方向に磁束が流れるのに比べ、水平方向は磁性材25の接触部のみに空気層を含む部分が存在するので積層方向に磁束が流れるより磁気抵抗が少なく、そのため継鉄部から側面に配置した磁性材25に磁束が流れ易くなり、脚部から継鉄部に流れた磁束は三相巻鉄心1の継鉄部だけではなく磁性材25にも流れ、磁性材25を配置した継鉄部において磁束密度が低減され、磁性材25が無い場合や三相巻鉄心1の外周部に磁性材を配置する場合に比べて鉄損および騒音が低減される。 [0080] Here, since the arranged by laminating the magnetic material 25 on the yoke side surface of the three-phase wound core 1 in the same manner as the vertical direction and the yoke portions, for example, the yoke section provided with magnetic If there is an overlap portion of the electromagnetic steel sheets compared to flux in the stacking direction in which the magnetic resistance increases because of an air layer flowing on the stacking surface, partial horizontal including an air layer only in the contact portion of the magnetic member 25 less magnetic resistance than flux flows in the stacking direction so but present, therefore the magnetic flux in the magnetic material 25 disposed on the side surface from the yoke portion easily flows, magnetic flux flows in the yoke portion from the leg three-phase wound core flows to the first yoke portion not only magnetic material 25, the magnetic flux density decreased in the yoke portion arranged magnetic material 25, the magnetic material to the outer peripheral portion of the case where there is no magnetic material 25 and the three-phase wound core 1 iron loss and noise are reduced as compared with the case of arranging.

【0081】以上のように、三相巻鉄心1の継鉄部側面に磁性材25を配置することにより、継鉄部の磁束密度を低減し、従来と比べて電磁鋼板の巻回数の増加や幅を大きくする等して重量や寸法を大きくすることを抑制し、従来と比べて軽量かつ省資源であり、鉄損が少なく騒音の低い環境に優しい静止誘導電磁機器鉄心を実現することができる。 [0081] As described above, by disposing the magnetic member 25 to the yoke portion side of the three-phase wound core 1, to reduce the magnetic flux density of the yoke portion, Ya increased number of windings of the electromagnetic steel sheet as compared with the conventional by, for example increasing the width to suppress increasing the weight and size, a light weight and resource saving than conventional, it is possible to realize a gentle static induction device core to lower iron loss of less noise environment .

【0082】また、磁性材25を三相巻鉄心1の継鉄部側面に配置することにより、三相巻鉄心1の高さを高くすること無く低損失および低騒音の効果を得ることができる。 [0082] Also, by disposing the magnetic member 25 to the yoke portion side of the three-phase wound core 1, it is possible to obtain the effect of no low loss and low noise by increasing the height of the three-phase wound core 1 . そして、高さにあまり裕度がない設備の内部などに設置する場合に有効である。 And is effective in the case to be installed, such as in the interior of the height do not have much tolerance equipment.

【0083】なお、本実施の形態6において、磁性材2 [0083] Incidentally, in Embodiment 6, the magnetic material 2
5を上部継鉄部の両側面に配置した例を示したが、両側面に配置した場合と比べて効果は低減するが、片面のみに配置した場合においても低損失および低騒音の効果を得ることができる。 Although 5 shows an example in which on both sides of the upper yoke portion, the effect as compared with the case of arranging on both sides is reduced to obtain the effect of low loss and low noise even when placed on one side only be able to.

【0084】また、磁性材25を第1の内側巻鉄心2および第2の内側巻鉄心3および外側巻鉄心4で形成され、主たる騒音の発生箇所である継鉄部の電磁鋼板が存在しない三角形の間隙部(図3参照)を塞ぐ位置に配置することにより、三角形の間隙部からの騒音を遮音することができ、より騒音の低い環境に優しい静止誘導電磁機器を実現することができる。 [0084] Further, formed of magnetic material 25 with a first inner wound iron core 2 and the second inner wound iron core 3 and the outer winding core 4, triangular magnetic steel yoke portion is a generation part of the main noise is not present by disposing the position to close the gap portion (see FIG. 3), it is possible to insulate noises from the gap of triangle, it is possible to realize a gentle stationary induction apparatus in a less noisy environment.

【0085】また、本実施の形態6において、三相巻鉄心1の継鉄部側面に配置する磁性材を、巻鉄心の積層方向と同方向に接して積層した方向性電磁鋼板とすることにより、磁性材を配置した巻鉄心の継鉄部から磁性材に渡り再び巻鉄心に戻る磁束の流れる方向に対して、方向性電磁鋼板を巻鉄心の積層方向に対して垂直方向に接して積層する場合と比べて、電磁鋼板の積層による空間部が巻鉄心と接する部分のみとなり空間部が少ないので、 [0085] Further, in Embodiment 6, by a magnetic material disposed in the yoke portion side of the three-phase wound core 1, and laminated oriented electrical steel sheet in contact with the stacking direction in the same direction of the winding core , with respect to a direction flowing from the yoke portion of the wound core of arranging the magnetic material of the magnetic flux returns to the wound core over the magnetic material is laminated in contact with the vertically-oriented electrical steel sheets to the stacking direction of the wound core If the compared, the space portion becomes only the portion space by stacking electromagnetic steel plates is in contact with the wound core is small,
磁気抵抗が小さくなり、巻鉄心の電磁鋼板と垂直方向に積層する場合よりもより大きな低損失および低騒音の効果を得ることができる。 Magnetic resistance becomes small, it is possible to obtain the effect of a larger low loss and noise than when laminating the electromagnetic steel plates and the vertical direction of the winding core.

【0086】(実施の形態7)図9および図10に本発明の実施の形態7における静止誘導電磁機器として変圧器の概略構成斜視図および概略構成平面図を示す。 [0086] shows a schematic configuration perspective view and a schematic structural plan view of a transformer as the stationary induction electromagnetic device according to the seventh embodiment of the present invention in FIGS. 9 and 10 (seventh embodiment). 図9 Figure 9
および図10において、実施の形態6と同じ構成については同じ符号を付して詳細説明を省略し、異なる部分を中心に説明する。 And 10, the same configuration as the sixth embodiment is omitted details are designated by the same reference numerals will be described mainly different portions. 実施の形態6の構成と異なるのは、三相巻鉄心1の継鉄部の側面に配置する磁性材26の継鉄部に沿った方向の端部を傾斜させて、その傾斜角度を3 The configuration differs from the sixth embodiment, by inclining the direction of the end portion along the yoke portion of the magnetic material 26 to be disposed on the side surface of the yoke portion of the three-phase wound core 1, the inclination angle 3
0度から60度とした点である。 From 0 degrees is the point that was 60 degrees.

【0087】以上のように構成した静止誘導電磁機器としての変圧器について説明する。 [0087] will be described configuration the transformer as the stationary induction electromagnetic devices as described above. コイル5に電圧が印加されるとコイル5に励磁電流が流れ、この励磁電流により三相巻鉄心1の内部に磁束が通じる。 When a voltage is applied to the coil 5 exciting current flows through the coil 5, a magnetic flux is lead into the interior of the three-phase winding core 1 by the excitation current. この磁束により、三相巻鉄心1において、鉄損および騒音が発生する。 The magnetic flux in the three-phase wound core 1, the iron loss and noise is generated.

【0088】ここで、三相巻鉄心1の継鉄部の側面に配置する磁性材26の端部の傾斜角度を好ましくは30度から60度としており、磁束は三相巻鉄心1の脚部から継鉄部および磁性材26に流れる場合、磁性材26内に直角に近い角度で流れ込むことはないので、継鉄部に沿った方向の端部を傾斜させた磁性材を用いても磁束の流れにはほとんど影響せず、傾斜させず角度が90度である実施の形態6の場合と同様に、脚部から継鉄部に流れた磁束は三相巻鉄心1だけではなく磁性材26にも流れ、継鉄部において磁束密度が低減され、磁性材26が無い場合と比べて鉄損および騒音が低減される。 [0088] Here, preferably the inclination angle of the end portion of the magnetic material 26 to be disposed on the side surface of the yoke portion of the three-phase winding core 1 is set to 60 degrees from 30 degrees, the magnetic flux legs of the three-phase wound core 1 from when flowing through the yoke portion and the magnetic member 26, since does not flow at an angle perpendicular close to the magnetic material 26, even if a magnetic material is tilted direction of the end portion along the yoke portion of the magnetic flux hardly affect the flow, as in the sixth embodiment at an angle of 90 degrees without inclination, not only magnetic flux three-phase winding core 1 which flows in the yoke portion from the leg portion in the magnetic member 26 also flows, is the magnetic flux density is reduced in the yoke section, the iron loss and noise are reduced as compared with the case the magnetic material 26 is not provided.

【0089】以上のように、三相巻鉄心1の継鉄部の側面に配置する磁性材26の継鉄部に沿った方向の端部を傾斜させることにより、実施の形態6と比べてより少ない材料で、継鉄部の磁束密度を低減し、従来と比べて電磁鋼板の巻回数の増加や幅を大きくする等して重量や寸法を大きくすることを抑制し、従来と比べて軽量かつ省資源であり、鉄損が少なく騒音の低い環境に優しい静止誘導電磁機器鉄心を実現することができる。 [0089] As described above, by inclining the direction of the end portion along the yoke portion of the magnetic material 26 to be disposed on the side surface of the yoke portion of the three-phase wound core 1, more than in the sixth embodiment with less material, reducing the magnetic flux density of the yoke portion, and the like to increase the growth and width of the winding number of the electromagnetic steel plates in comparison with the conventional suppressed by increasing the weight and size, light weight and compared to conventional a resource saving, it is possible to realize a gentle static induction device core to lower iron loss of less noise environment.

【0090】なお、磁束は三相巻鉄心1の脚部から継鉄部および磁性材26に流れる場合、磁性材26内に直角に近い角度で流れ込むことはないので、三相巻鉄心1の継鉄部の側面に配置する磁性材26の端部で、三相巻鉄心1の継鉄部に沿った方向の端部を傾斜させることにより、傾斜させず角度が90度である実施の形態6の場合より少ない材料でほぼ同等の効果を得ることができ、省資源で環境に優しい静止誘導電磁機器を実現することができる。 [0090] Incidentally, if the magnetic flux flowing through the yoke portion and a magnetic member 26 from the leg portion of the three-phase wound core 1, so it does not flow at an angle nearly perpendicular to the magnetic material 26, the following three-phase wound core 1 at the end of the magnetic member 26 disposed on the side surface of the iron part, by tilting the end of the direction along the yoke portion of the three-phase winding core 1, the angle without inclination is 90 degrees embodiment 6 of it is possible to obtain approximately the same effect less material case, it is possible to realize a gentle stationary induction apparatus in environmental resource saving.

【0091】(実施の形態8)本実施の形態8について説明する。 [0091] (Embodiment 8) Embodiment 8 of the present embodiment will be described. 構成、作用、効果は実施の形態1と同様であるのでその説明を省略する。 Configuration, functions and effects will be omitted because it is same as in the first embodiment.

【0092】磁性材を電磁鋼板の積層物としているので、磁性材の厚さを容易に所望の厚さにすることができ、電磁鋼板の積層数を増減することにより、鉄損などの特性および経済性を考慮した最適な鉄心を構成することができる。 [0092] Since the magnetic material is a laminate of electromagnetic steel sheets, the thickness of the magnetic material can be easily set to a desired thickness, by increasing or decreasing the number of stacked electromagnetic steel sheets, properties such as iron loss and it is possible to configure the optimal core in consideration of the economical efficiency.

【0093】また、三相巻鉄心1を製造した後、鉄損や騒音などの特性を測定し、測定した値より鉄損および騒音を低減したい場合、三相巻鉄心1の設計や構造を変更することなく、電磁鋼板を三相巻鉄心1の継鉄部に配置し、電磁鋼板の積層数を増加することにより容易にこれらを実現することができる。 [0093] Moreover, after manufacturing a three-phase wound core 1, to measure the characteristics such as iron loss and noise, if you want to reduce iron loss and noise from the measured value, changing the design and structure of the three-phase wound core 1 without places the electrical steel yoke portion of a three-phase wound core 1, it is possible to easily achieve these by increasing the number of stacked electromagnetic steel sheets.

【0094】(実施の形態9)図11に本発明の実施の形態9における静止誘導電磁機器として変圧器の概略構成正面図を示す。 [0094] shows a schematic configuration front view of a transformer as the stationary induction electromagnetic device according to the ninth embodiment of the present invention in FIG. 11 (Embodiment 9). 図11において、実施の形態1と同じ構成については同じ符号を付して詳細説明を省略し、異なる部分を中心に説明する。 11, the same structure as in the first embodiment is omitted details are designated by the same reference numerals will be described mainly different portions.

【0095】実施の形態1の構成と異なるのは、三相巻鉄心1の継鉄部に配置する磁性材27の透磁率を、三相巻鉄心1を構成する電磁鋼板の透磁率より大きくした点である。 [0095] The configuration differs from Embodiment 1, the magnetic permeability of the magnetic material 27 disposed yoke portion of a three-phase wound core 1, and greater than the magnetic permeability of the magnetic steel sheets that constitute the three-phase wound core 1 is the point.

【0096】以上のように構成した静止誘導電磁機器としての変圧器について説明する。 [0096] will be described configuration the transformer as the stationary induction electromagnetic devices as described above. コイル5に電圧が印加されるとコイル5に励磁電流が流れ、この励磁電流により三相巻鉄心1の内部に磁束が通じる。 When a voltage is applied to the coil 5 exciting current flows through the coil 5, a magnetic flux is lead into the interior of the three-phase winding core 1 by the excitation current. この磁束により、三相巻鉄心1において、鉄損および騒音が発生する。 The magnetic flux in the three-phase wound core 1, the iron loss and noise is generated.

【0097】ここで、三相巻鉄心1の継鉄部に配置する磁性材27の透磁率を、三相巻鉄心1を構成する電磁鋼板の透磁率より大きくしており、透磁率が大きいほど磁束を通しやすいので、脚部から継鉄部に流れた磁束は三相巻鉄心1の継鉄部だけでなく磁性材27にも流れ、磁性材27を配置した継鉄部において磁束密度が低減され、磁性材27が無い場合および三相巻鉄心1を構成する電磁鋼板の透磁率より大きくない場合と比べて鉄損および騒音が低減される。 [0097] Here, the magnetic permeability of the magnetic material 27 disposed yoke portion of a three-phase wound core 1, and greater than the magnetic permeability of the magnetic steel sheets that constitute the three-phase wound core 1, as permeability is greater since feed easily through the magnetic flux, magnetic flux flows in the yoke portion from the leg portion also flows into the magnetic member 27 as well as yoke portions of the three-phase wound core 1, the magnetic flux density is reduced in the yoke portion arranged magnetic material 27 is, iron loss and noise are reduced as compared with the case not greater than the magnetic permeability of the electromagnetic steel plates constituting If there is no magnetic material 27 and a three-phase wound core 1.

【0098】また、透磁率が大きいほど磁束を通しやすいので、磁性材27に磁束が流れやすくなる。 [0098] In addition, since the feed easily through the magnetic flux as the magnetic permeability is large, the magnetic flux is likely to flow to the magnetic material 27. そして、 And,
磁性材の磁化特性を示すヒステリシスループにおいて、 In the hysteresis loop showing the magnetization characteristics of magnetic material,
透磁率は磁束密度を磁界の強さで除した傾きであり、この傾きが大きいほどヒステリシスループに囲まれる面積が小さく、このヒステリシスループに囲まれる面積は鉄損であるヒステリシス損失であるので、透磁率が大きく、鉄損が小さくなる。 Permeability is the slope obtained by dividing the magnetic flux density in the magnetic field strength, small area surrounded by the hysteresis loop as the inclination is large, the area surrounded by the hysteresis loop is the hysteresis loss is a core loss, magnetic permeability is large, iron loss is reduced.

【0099】従って、磁性材27に流れる磁束を多くし、継鉄部に流れる磁束を少なくすることにより、透磁率が同じまたは小さい磁性材を配置した場合より、鉄損をより低減することができる。 [0099] Thus, increasing the magnetic flux flowing in the magnetic material 27, by reducing the magnetic flux flowing through the yoke portion, than if the permeability is arranged the same or smaller magnetic material, it is possible to further reduce iron loss .

【0100】なお、上記は実施の形態1について説明したが、実施の形態2から8についても同様のことがいえる。 [0100] The above has been described first embodiment, the same is true for embodiments 2 to 8 embodiment.

【0101】(実施の形態10)図12、図13、図1 [0102] (Embodiment 10) FIG. 12, 13, 1
4(a)、図14(b)および図14(c)に本発明の実施の形態10における静止誘導電磁機器として変圧器の概略構成斜視図および概略構成側面図および巻鉄心を構成する電磁鋼板の外観図を示す。 4 (a), electromagnetic steel plates constituting the schematic configuration perspective view and a schematic structural side view and a wound core transformer as the stationary induction electromagnetic device according to a tenth embodiment of the present invention in FIG. 14 (b) and FIG. 14 (c) show the external view. 図12および図13 12 and 13
において、実施の形態12と同じ構成については同じ符号を付して詳細説明を省略し、異なる部分を中心に説明する。 In, the same configuration as the twelfth embodiment is omitted details are designated by the same reference numerals will be described mainly different portions. 実施の形態1の構成と異なるのは、磁性材を配置するのではなく、図14((a)は正面図、(b)は平面図、(c)は側面図)に示すような、幅方向が一定ではなく、継鉄部となる部分の幅方向寸法が脚部となる部分の幅方向寸法より大きい電磁鋼板61を複数枚、巻回、積層して、第1の内側巻鉄心41および第2の内側巻鉄心42および外側巻鉄心43からなる巻鉄心31を構成した点である。 Configuration differs from the Embodiment 1, instead of placing the magnetic material, Figure 14 ((a) is a front view, (b) is a plan view, (c) is a side view) as shown, the width rather than the direction is constant, a plurality of electromagnetic steel plates 61 is greater than the width dimension of the portion in which the width dimension of the portion to be a yoke portion is a leg portion, wound, laminated, and the first inner wound core 41 in that to constitute a wound core 31 of the second inner winding core 42 and the outer wound core 43.

【0102】以上のように構成した静止誘導電磁機器としての変圧器について説明する。 [0102] will be described configuration the transformer as the stationary induction electromagnetic devices as described above. コイル5に電圧が印加されるとコイル5に励磁電流が流れ、この励磁電流により巻鉄心31の内部に磁束が通じる。 When a voltage is applied to the coil 5 exciting current flows through the coil 5, a magnetic flux is lead into the interior of the winding core 31 by the excitation current. この磁束により、 This magnetic flux,
巻鉄心31において、鉄損および騒音が発生する。 In wound core 31, the iron loss and noise is generated.

【0103】ここで、幅方向が一定ではなく、継鉄部となる部分の幅方向寸法が脚部となる部分の幅方向寸法より大きい電磁鋼板を巻回しているので、実施の形態1のように磁性材を配置した場合と比べて、磁気抵抗を増加させ磁束の流れを妨げる空気層を有する接合部がないので、より容易に脚部から継鉄部に流れた磁束は脚部と同じ幅の部分だけではなく幅が広くなっている部分にも流れ、継鉄部において磁束密度が低減され、幅一定の電磁鋼板を巻回した巻鉄心および巻鉄心に磁性材料を配置した場合と比べて鉄損および騒音が低減される。 [0103] Here, instead of the width direction is constant, the width dimension of the portion to be a yoke portion is wound larger than the electromagnetic steel sheet width direction dimension of the portion to be a leg, as in the first embodiment as compared with the case of arranging the magnetic material, since there is no joint having an air layer that prevents the flow of the magnetic flux increases magnetic resistance, easier magnetic flux flows in the yoke portion from the legs as wide as the leg also flows through the portion of width not only the portion is wider, the magnetic flux density is reduced in the yoke portion, as compared with the case of arranging the magnetic material to the winding core and wound core by winding a constant width of the electromagnetic steel plates iron loss and noise is reduced.

【0104】以上のように、幅方向が一定ではなく、継鉄部となる部分の幅方向寸法が脚部となる部分の幅方向寸法より大きい電磁鋼板を巻回することにより、継鉄部の磁束密度を低減し、従来と比べて電磁鋼板の巻回数の増加や幅を大きくする等して重量や寸法を大きくすることを抑制し、従来と比べて軽量かつ省資源で、鉄損が少なく騒音の低い環境に優しい静止誘導電磁機器を実現することができる。 [0104] As described above, instead of the width direction uniform, the width dimension of the portion to be a yoke portion by winding a larger electromagnetic steel than the width dimension of the portion to be a leg portion, the yoke portion reduce magnetic flux density, as compared with the conventional suppressed increasing the equal to the weight and size to increase the growth and width of the winding number of the electromagnetic steel plates, light weight and resource saving than conventional, iron loss is reduced it is possible to realize a gentle stationary induction apparatus with low noise environments.

【0105】また、幅方向が一定ではなく、継鉄部となる部分の幅方向寸法が脚部となる部分の幅方向寸法より大きい電磁鋼板を巻回することにより、巻鉄心31の高さを高くすること無く低損失および低騒音の効果を得ることができる。 [0105] Further, instead of the width direction is constant, by the width dimension of the portion to be a yoke portion is wound electrical steel sheet larger than the width dimension of the portion to be a leg, the height of the wound core 31 it is possible to obtain the effect of no low loss and low noise can be increased. そして、高さにあまり裕度がない設備の内部などに設置する場合に有利である。 Then, it is advantageous when installed in the interior of the height not much margin facilities.

【0106】なお、本実施の形態10において、電磁鋼板を上部継鉄部の両側面に寸法を大きくしたものを示したが、両側面に大きくした場合と比べ効果は低減するが、片面側のみに大きくした場合においても低損失および低騒音の効果を得ることができる。 [0106] Note that in Embodiment 10, showed that by increasing the size of electromagnetic steel sheets on both sides of the upper yoke portion, the effect as compared with the case where increased on both sides is reduced, one side only You can also obtain the effects of low loss and low noise in the case of greatly.

【0107】また、上部継鉄部と同様に下部継鉄部の幅方向寸法を大きくしても鉄損および騒音を低減する効果を得ることができる。 [0107] Further, it is also possible to increase the width dimension of the lower yoke portion similar to the upper yoke portion to obtain the effect of reducing the iron loss and noise. 上部および下部継鉄部の両方の幅方向寸法を大きくしても鉄損および騒音を低減する効果を得ることができる。 It can be larger dimension in the width direction of both the upper and lower yoke portions obtain the effect of reducing iron loss and noise.

【0108】また、この巻鉄心31は、所定の構成となるように、外周部分になるほど長さが長く切断され、継鉄部となる部分の幅方向寸法が脚部となる部分の幅方向寸法より大きくなるように打ち抜かれた電磁鋼板を巻回することにより製造することができる。 [0108] Also, the wound core 31, so as to have a predetermined configuration, the cutting long as the length becomes the outer peripheral portion, the width dimension of the portion in which the width dimension of the portion to be a yoke portion is a leg portion it can be produced by winding magnetic steel sheets punched out to be greater.

【0109】また、第1の内側巻鉄心41および第2の内側巻鉄心42および外側巻鉄心43を構成する電磁鋼板の全てではなく、これらの内いずれかを構成する電磁鋼板のみについて、幅方向が一定ではなく、継鉄部となる部分の幅方向寸法が脚部となる部分の幅方向寸法より大きくすることでも鉄損および騒音を低減する効果を得ることができる。 [0109] In addition, not all the electromagnetic steel plates constituting the first inner wound iron core 41 and the second inner winding core 42 and the outer wound core 43, only the electromagnetic steel plates constituting one of these, the width direction There is not constant, the width dimension of the portion to be the yoke portion can be obtained the effect of reducing the iron loss and noise also is made larger than the width dimension of the portion to be a leg.

【0110】(実施の形態11)図15、図16、図1 [0110] (Embodiment 11) FIGS. 15, 16, 1
7(a)、図17(b)および図17(c)に本発明の実施の形態11における静止誘導電磁機器として変圧器の概略構成斜視図および概略構成平面図および外側巻鉄心を構成する電磁鋼板の外観図を示す。 7 (a), electromagnetic constituting the schematic configuration perspective view and a schematic structural plan view and outside wound core transformer as the stationary induction electromagnetic device in Embodiment 11 of the present invention in FIG. 17 (b) and FIG. 17 (c) It shows an external view of the steel sheet.

【0111】図15および図16において、実施の形態10と同じ構成については同じ符号を付して詳細説明を省略し、異なる部分を中心に説明する。 [0111] In FIGS. 15 and 16, the same configuration as the tenth embodiment is omitted details are designated by the same reference numerals will be described mainly different portions.

【0112】実施の形態10の構成と異なるのは、図1 [0112] configuration differs from the tenth embodiment, FIG. 1
6、図17(a)、図17(b)および図17(c)に示すように、継鉄部となる部分の幅方向寸法が脚部となる部分の幅方向寸法より大きく、かつ継鉄部の幅広部分の継鉄部に沿った方向の端部を角度が30度から60度の傾斜をもたせ、第1の内側巻鉄心51および第2の内側巻鉄心52および外側巻鉄心53からなる巻鉄心32 6, FIG. 17 (a), the as shown in FIG. 17 (b) and FIG. 17 (c), the width dimension of the portion to be a yoke portion is larger than the width dimension of the portion to be a leg, and a yoke the direction of the end portion along the yoke portion of the wide portion of the section angle imparted an inclination of 60 degrees from 30 degrees, the first inner wound iron core 51 and the second inner winding core 52 and the outer winding core 53 winding core 32
を構成した点である。 It is that you configure.

【0113】この傾斜は、例えば、継鉄部の電磁鋼板は図17((a)は正面図、(b)は平面図、(c)は側面図)のような形状を基本に幅広部分の長さを前述の傾斜角度になるように製作(幅広部分の継鉄部に沿った方向の長さを変えたもの)し、複数枚を巻回、積層することで実現できる。 [0113] The inclination can, for example, electromagnetic steel sheets of the yoke portion FIG 17 ((a) is a front view, (b) is a plan view, (c) is a side view) of the wide portion to the base shaped like a the length was fabricated such that the tilt angle of the above (those changing the length of the direction along the yoke portion of the wide portion), a plurality winding can be realized by laminating.

【0114】以上のように構成した静止誘導電磁機器としての変圧器について説明する。 [0114] will be described configuration the transformer as the stationary induction electromagnetic devices as described above. コイル5に電圧が印加されるとコイル5に励磁電流が流れ、この励磁電流により巻鉄心32の内部に磁束が通じる。 When a voltage to the coil 5 is applied exciting current flows through the coil 5, a magnetic flux is lead into the interior of the winding core 32 by the excitation current. この磁束により、 This magnetic flux,
巻鉄心32において、鉄損および騒音が発生する。 In wound core 32, the iron loss and noise is generated.

【0115】ここで、幅方向が一定ではなく、継鉄部となる部分の幅方向寸法が脚部となる部分の幅方向寸法より大きい電磁鋼板を巻回し、巻鉄心32の継鉄部を構成する電磁鋼板の角部の傾斜角度が30度から60度の角度としており、磁束は巻鉄心32の脚部から継鉄部に流れる場合、継鉄部の幅が広くなっている部分に直角に近い角度で流れ込むことはないので、巻鉄心32の継鉄部を構成する電磁鋼板の角部の傾斜角度が30度から60 [0115] Here, instead of the width direction uniform, the width dimension of the portion to be a yoke portion is wound around the larger magnetic steel sheet than the width dimension of the portion to be a leg portion, constituting a yoke portion of the winding core 32 the inclination angle of the corner portion of the electromagnetic steel sheet which has a 60 degree angle from 30 degrees, the magnetic flux may flow to the yoke portion from the leg portion of the winding core 32, perpendicular to the portion where the width of the yoke portion is wider because does not flow at an angle close, the inclination angle of the corner portion of the electromagnetic steel plates constituting the yoke portion of the winding core 32 is 30 degrees 60
度の角度とし使用材料を低減した場合においても、磁束の流れにはほとんど影響せず、傾斜していない実施の形態10の場合と同様に、脚部から継鉄部に流れた磁束は脚部と同じ幅の部分だけではなく幅が広くなっている部分にも流れ、継鉄部において磁束密度が低減され、幅一定の電磁鋼板を巻回した巻鉄心と比べて鉄損および騒音が低減される。 In case of reducing the materials used as the angle in degrees is also hardly affect the magnetic flux flow, as in the embodiment 10 not inclined, the magnetic flux flowing to the yoke portion from the leg leg also flows through the portion of width not only parts of the same width is as wide as, the reduced magnetic flux density in the yoke portion, the iron loss and noise is reduced as compared to the wound core by winding a constant width of the electromagnetic steel plates that.

【0116】以上のように、幅方向が一定ではなく、継鉄部となる部分の幅方向寸法が脚部となる部分の幅方向寸法より大きい電磁鋼板を巻回し、巻鉄心32の継鉄部を構成する電磁鋼板の角部の傾斜角度が30度から60 [0116] As described above, instead of the width direction is constant, the width dimension of the portion to be a yoke portion is wound around an electromagnetic steel sheet larger than the width dimension of the portion to be a leg, the yoke portion of the winding core 32 60 from the tilt angle is 30 degrees corners of the electromagnetic steel plates constituting the
度の角度としており、継鉄部の磁束密度を低減し、従来と比べて電磁鋼板の巻回数の増加や幅を大きくする等して重量や寸法を大きくすることを抑制し、従来と比べて軽量かつ省資源で、鉄損が少なく騒音の低い環境に優しい静止誘導電磁機器を実現することができる。 It has an angle in degrees, to reduce the magnetic flux density of the yoke portion, and the like to increase the growth and width of the winding number of the electromagnetic steel plates to suppress increasing the weight and dimensions as compared with the conventional, compared to conventional lightweight and resource saving, it is possible to realize a gentle stationary induction apparatus in low environmental iron loss of less noise.

【0117】なお、脚部から継鉄部に流れた磁束は脚部と同じ幅の部分だけではなく幅が広くなっている部分にも流れ、幅が広くなっている部分に直角に近い角度で流れ込むことはないので、巻鉄心32の継鉄部を構成する電磁鋼板の角度の傾斜角度が30度から60度の角度とすることにより、傾斜させず角度が90度である実施の形態10の場合より少ない材料でほぼ同等の効果を得ることができ、省資源で環境に優しい静止誘導電磁機器鉄心を実現することができる。 [0117] Incidentally, the magnetic flux flowing to the yoke portion from the leg portion also flows to the portion which is wider not only portions of the same width as the leg portion, at an angle perpendicular close to the portion where the width is wider because does not flow, by the inclination angle of the angle of the electromagnetic steel plates constituting the yoke portion of the winding core 32 is an angle of 60 degrees from 30 degrees, without inclination angle of the tenth embodiment is 90 degrees it is possible to obtain approximately the same effect less material case, it is possible to realize a gentle static induction device core to the environmental resource saving.

【0118】なお、上記実施の形態1から11の構成に関して、各々を複合した構成とした場合、各々単独の構成の場合と比較すると、同等またはそれ以上の効果を有する。 [0118] Incidentally, with respect to configuration of the first embodiment 11, in the case of the configuration that combines each as compared to the case of each single structure, with equal or greater efficacy.

【0119】なお、上記実施の形態1から9において、 [0119] Incidentally, in 9 the first embodiment,
磁性材を三相巻鉄心1の上部継鉄部のみに配置した例を示したが、下部継鉄部のみ、または、上部継鉄部および下部継鉄部両方に配置しても同様の効果を得ることができる。 An example is shown in which a magnetic material is disposed only in the upper yoke portion of the three-phase winding core 1, the lower yoke portion only, or, the same effect can be placed on both the upper yoke and the lower yoke portion it is possible to obtain. ここで、地面などの設置面から遠い箇所に存在するのが上部継鉄部であり、近い箇所に存在するのが下部継鉄部とする。 Here, the present far location from the installation surface such as ground is a top yoke, be present near locations to the lower yoke portion.

【0120】なお、上記実施の形態1から9において、 [0120] Incidentally, in 9 the first embodiment,
磁性材はベークライトのような絶縁物を用いて、三相巻鉄心1の継鉄部の周りを取り巻く電気的な閉回路を構成しないように継鉄部に固定すればよい。 Magnetic material with insulating material such as bakelite, may be fixed to the yoke portion so as not to constitute an electrical closed circuit surrounding around the yoke portion of the three-phase wound core 1.

【0121】また、上記の実施の形態1から11は、三相巻鉄心について説明したが、三相巻鉄心のみならず、 [0121] Further, 11 from the first embodiment described above has described a three-phase wound core, not a three-phase wound core only,
単相巻鉄心についても同様の効果が得られる。 Similar advantages can be obtained for single phase wound core is obtained.

【0122】 [0122]

【発明の効果】以上の説明から明らかなように、本発明の第1の静止誘導電磁機器によれば、電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心と、前記三相巻鉄心の継鉄部の積み厚方向に配された磁性材とを備えたため、継鉄部の磁束密度が低減するため鉄損および騒音を低減することができる。 As apparent from the foregoing description, according to the first stationary induction apparatus of the present invention, three phases consisting of two inner wound iron core and one outer winding core formed by laminating electromagnetic steel plates because having a wound core, and the three-phase wound core yoke portions of the stacked thickness direction provided a magnetic material, the magnetic flux density in the yoke portion can be reduced iron loss and noise to reduce.

【0123】また、最も騒音が発生しやすい継鉄部の磁束密度を低減できるため低騒音化の効果は大きなものとなる。 [0123] The effect of noise reduction it is possible to reduce the magnetic flux density of the yoke portion which most noise is easily generated becomes large. このように、効率よく磁性材を配することにより鉄心全体として省資源化が実現できる。 Thus, resource saving can be achieved as a whole core by placing efficiently magnetic material.

【0124】また、本発明の第2の静止誘導電磁機器によれば、第1の静止誘導電磁機器において、磁性材は三相巻鉄心上に配されたものであり、脚部を通った磁束が、三相巻鉄心上に配された磁性材に流れ、磁性材を配した三相巻鉄心の磁束密度が低減するため、磁束密度の増加に伴い増加する損失および騒音を低減できる。 [0124] Further, according to the second stationary induction apparatus of the present invention, the first stationary induction apparatus, the magnetic material has been arranged in a three-phase winding core, the magnetic flux passing through the leg but it flows to the magnetic material arranged in three-phase winding core, the magnetic flux density of the three-phase wound core which arranged magnetic material is reduced, thereby reducing the loss and noise increase with increasing flux density.

【0125】また、本発明の第3の静止誘導電磁機器によれば、第1の静止誘導電磁機器において、磁性材は剛性を有すると共に、内側巻鉄心の外周面と外側巻鉄心の内周面との間に配されたため、継鉄部の磁束密度が低減するため鉄損および騒音を低減することができる。 [0125] According to the third stationary induction apparatus of the present invention, the first stationary induction apparatus, the magnetic material has a rigid, inner peripheral surface of the outer peripheral surface and the outer wound core inside the winding core since that is located between the magnetic flux density of the yoke portion can be reduced iron loss and noise to reduce.

【0126】また、最もたるみの大きい内側巻鉄心と外側巻鉄心との間に剛性を有する磁性材を配してたるみを低減することにより、たるみにより増大していた騒音を効果的に低減することができる。 [0126] Further, most between the slack of the large inner wound core and an outer wound cores by disposing magnetic material having rigidity by reducing sagging, possible to effectively reduce the noise was increased by sagging can. このように、効率よく磁性材を配することにより鉄心全体として省資源化が実現でき、さらに、低騒音化の効果を大きくすることができる。 Thus, efficient resource saving can be realized as a whole core by placing the magnetic material, and further, it is possible to increase the effect of noise reduction.

【0127】また、本発明の第4の静止誘導電磁機器によれば、第1の静止誘導電磁機器において、磁性材は内側巻鉄心の継鉄部の内周面の平坦部分に配されたため、 [0127] Further, according to the fourth stationary induction apparatus of the present invention, the first stationary induction electromagnetic devices, since the magnetic material arranged on the flat portion of the inner peripheral surface of the yoke portion of the inner winding core,
少ない磁性材料で効率よく継鉄部の磁束密度を低減し、 Reducing the magnetic flux density of efficiently yoke portion with less magnetic material,
鉄損および騒音が低減する。 Iron loss and noise is reduced.

【0128】また、継鉄部の鉄心窓側に磁性材を配することにより、鉄心全体の高さを高くすることなく、低鉄損、低騒音化ができる。 [0128] Further, by disposing a magnetic material core window side of the yoke portion, without increasing the overall height of the core, low core loss, can reduce noise.

【0129】また、本発明の第5の静止誘導電磁機器によれば、第1の静止誘導電磁機器において、磁性材は少なくとも内側巻鉄心の角部を含む継鉄部の内周面に沿わせて配されたため、磁束の流れをより効率的とし、第1、4の静止誘導電磁機器の効果よりさらに効果的に鉄損および騒音が低減する。 [0129] Further, according to the fifth stationary induction apparatus of the present invention, the first stationary induction apparatus, the magnetic material is placed along the inner peripheral surface of the yoke portion including the corner portion of at least the inner winding core since arranged Te, and the flow of the magnetic flux more efficiently and, more effectively iron loss and noise is reduced from the effects of the first and fourth stationary induction apparatuses.

【0130】また、本発明の第6の静止誘導電磁機器によれば、電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心と、前記三相巻鉄心の継鉄部の側面に配した磁性材とを備えたため、磁性材に渡る磁束に対する磁気抵抗を低減させ、継鉄部の磁束密度が低減することができ、鉄損および騒音を低減する効果を大きくすることができる。 [0130] Also, the according to the 6 stationary induction electromagnetic device, a three-phase wound core consisting of two inner wound iron core and one outer winding core formed by laminating magnetic steel sheets, the three-phase wound core of the present invention for and a yoke portion magnetic material arranged to the side of, to reduce the magnetic resistance to the magnetic flux across the magnetic material, it is possible to the magnetic flux density of the yoke portion is reduced, the effect of reducing the iron loss and noise it can be increased.

【0131】また、本発明の第7の静止誘導電磁機器によれば、第6の静止誘導電磁機器において、継鉄部に沿った方向の端部が傾斜したため、第6の静止誘導電磁機器の効果に加え、磁性材の使用量が低減するので省資源化および軽量化が実現できる。 [0131] Further, according to the seventh stationary induction apparatus of the present invention, in the sixth stationary induction apparatus, since the end portions in the direction along the yoke portion is inclined, the sixth stationary induction apparatus in addition to the effect, resource saving and weight reduction can be achieved because the amount of magnetic material is reduced.

【0132】また、本発明の第8の静止誘導電磁機器によれば、第1から第7の静止誘導電磁機器のいずれかにおいて、磁性材が電磁鋼板の積層物としたため、夫々の効果に加え、磁性材の厚さを容易に所望の厚さにすることができ、電磁鋼板の積層数を増減することにより、特性および経済性を考慮した最適な鉄心を構成することができる。 [0132] Further, according to the eighth stationary induction apparatus of the present invention, in a first one of the seventh stationary induction apparatus, since the magnetic material has a laminate of electromagnetic steel sheets, in addition to the effects of the respective the thickness of the magnetic material can be easily set to a desired thickness, by increasing or decreasing the number of stacked electromagnetic steel sheets, it is possible to configure the optimal core in consideration of the properties and economy.

【0133】また、巻鉄心を製造した後に特性を測定し、測定値より鉄損および騒音を低減したい場合、巻鉄心の設計や構造を変更することなく、電磁鋼板を巻鉄心の継鉄部に配し、電磁鋼板の積層数を増加することにより、従来と比べてより容易にこれらを実現することができる。 [0133] Further, the characteristics were measured after producing the wound core, if you want to reduce iron loss and noise than the measured value, without changing the design and structure of the wound core, an electromagnetic steel sheet yoke portion of the wound core arranged, by increasing the number of stacked electromagnetic steel sheets, it is possible to achieve these more easily than conventional.

【0134】また、本発明の第9の静止誘導電磁機器によれば、第1から第8の静止誘導電磁機器のいずれかにおいて、磁性材の透磁率が巻鉄心を構成する電磁鋼板の透磁率より大きくしたため、透磁率が大きいほど磁束を通しやすいことから、磁性材に磁束が流れやすくなり、 [0134] Further, according to the ninth stationary induction apparatus of the present invention, in a first one of the eighth stationary induction apparatus, the magnetic permeability of the magnetic steel sheets permeability of the magnetic material constituting the wound core because of the larger, since it easily through the magnetic flux as the magnetic permeability is large, the magnetic flux tends to flow in the magnetic material,
透磁率が同じまたは小さい磁性材を配した場合より、さらに効率的に巻鉄心の鉄損および騒音を低減することができる。 Than if the magnetic permeability arranged the same or smaller magnetic material, it is possible to further reduce the iron loss and noise efficiently wound core.

【0135】また、本発明の第10の静止誘導電磁機器によれば、第9の静止誘導電磁機器において、磁性材がフェライトまたはパーマロイとしたため、透磁率が電磁鋼板より大きく、磁束がより容易に磁性材に流れ、脚部からの磁束が継鉄部および磁性材に流れることにより磁性材を配した継鉄部の磁束密度が低減する。 [0135] Further, according to the 10 static induction device of the present invention, in the ninth stationary induction apparatus, since the magnetic material is a ferrite or Permalloy magnetic permeability is greater than the electromagnetic steel sheets, the magnetic flux is more easily flows in the magnetic material, the magnetic flux from the leg magnetic flux density of the yoke section provided with magnetic material is reduced by flowing the yoke portion and a magnetic material. そのため、 for that reason,
第7の静止誘導電磁機器よりさらに損失および騒音を低減することができる。 It can be reduced further losses and noise than the seventh stationary induction apparatuses.

【0136】また、本発明の第11の静止誘導電磁機器によれば、電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心であって、前記三相巻鉄心の継鉄部の少なくとも一部の幅寸法が前記三相巻鉄心の脚部の幅寸法より大きくしたため、巻鉄心に磁性材を配した場合と比べ、磁気抵抗を増加させる要因が少ないので、より磁性材に磁束が流れやすくなり、継鉄部の磁束密度が低減する。 [0136] Further, according to the 11 static induction device of the present invention, there is provided a three-phase wound core consisting of two inner wound iron core and one outer winding core formed by laminating magnetic steel sheets, the three-phase since at least part of the width of the yoke portion of the wound core is greater than the width of the legs of the three-phase wound core, compared with the case of arranging the magnetic material in the wound core, since fewer factors to increase the magnetic resistance , easier to magnetic flux flows in the magnetic material, the magnetic flux density in the yoke portion is reduced. そして、鉄損および騒音を低減する効果を大きくすることができる。 Then, it is possible to increase the effect of reducing the iron loss and noise.

【0137】また、本発明の第12の静止誘導電磁機器によれば、第10の静止誘導電磁機器において、脚部の幅寸法より大きい継鉄部に沿った方向の端部が傾斜したため、第10の静止誘導電磁機器の効果に加えて、磁性材料の使用量が低減するので省資源化および軽量化が実現できる。 [0137] Further, according to the 12 static induction device of the present invention, in the tenth stationary induction apparatus, since the end portions in the direction along the width dimension larger than the yoke portion of the leg portion is inclined, the in addition to the 10 static induction device of the effects of, the amount of magnetic material to reduce resource saving and weight reduction can be achieved.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施の形態1における変圧器の斜視図 Perspective view of a transformer according to the first embodiment of the present invention; FIG

【図2】同実施の形態1における変圧器の正面図 Front view of the transformer in FIG. 2 embodiment 1 of the same embodiment

【図3】同実施の形態2における変圧器の構成図 Figure 3 is a configuration diagram of a transformer according to the second same embodiment

【図4】同実施の形態3における変圧器の構成図 Figure 4 is a configuration diagram of a transformer according to the third same embodiment

【図5】同実施の形態4における変圧器の部分構成図 Figure 5 is a partial configuration diagram of a transformer according to the fourth same embodiment

【図6】同実施の形態5における変圧器の部分構成図 Figure 6 is a partial block diagram of a transformer according to the fifth same embodiment

【図7】同実施の形態6における変圧器の斜視図 Figure 7 is a perspective view of a transformer in the sixth same embodiment

【図8】同実施の形態6における変圧器の側面図 Figure 8 is a side view of a transformer in the sixth same embodiment

【図9】同実施の形態7における変圧器の斜視図 Figure 9 is a perspective view of a transformer in the seventh the embodiment

【図10】実施の形態7における変圧器の平面図 Figure 10 is a plan view of a transformer according to the seventh embodiment

【図11】同実施の形態9における変圧器の正面図 Figure 11 is a front view of a transformer according to the embodiment 9

【図12】同実施の形態10における変圧器の斜視図 Figure 12 is a perspective view of a transformer according to the tenth same embodiment

【図13】同実施の形態10における変圧器の側面図 Figure 13 is a side view of a transformer according to the tenth same embodiment

【図14】(a)同実施の形態10における変圧器の外側巻鉄心を構成する電磁鋼板の概略正面図 (b)同実施の形態10における変圧器の外側巻鉄心を構成する電磁鋼板の概略平面図 (c)実施の形態10における変圧器の外側巻鉄心を構成する電磁鋼板の概略側面図 [14] (a) Outline of magnetic steel sheets constituting the outer wound core of a transformer in a schematic front view (b) the form 10 of the embodiment of the electromagnetic steel plates constituting the outer wound core of a transformer according to the tenth same embodiment schematic side view of an electromagnetic steel plate constituting an outer wound core of a transformer according to the tenth plan view (c) carried

【図15】本実施の形態11における変圧器の斜視図 Perspective view of the transformer in Figure 15 embodiment 11

【図16】同実施の形態11における変圧器の側面図 Figure 16 is a side view of a transformer according to the embodiment 11

【図17】(a)同実施の形態11における変圧器の外側巻鉄心を構成する電磁鋼板の概略正面図 (b)同実施の形態11における変圧器の外側巻鉄心を構成する電磁鋼板の概略平面図 (c)同実施の形態11における変圧器の外側巻鉄心を構成する電磁鋼板の概略側面図 17] (a) Outline of magnetic steel sheets constituting the outer wound core of a transformer in a schematic front view (b) to the embodiment 11 of the electromagnetic steel plates constituting the outer wound core of a transformer according to the embodiment 11 schematic side view of an electromagnetic steel plate constituting an outer wound core of a transformer in the plan view (c) to the embodiment 11

【図18】従来の変圧器の斜視構成図 Figure 18 is a perspective configuration view of a conventional transformer

【符号の説明】 DESCRIPTION OF SYMBOLS

1、31、32 三相巻鉄心 2、41、51 第1の内側巻鉄心 3、42、52 第2の内側巻鉄心 4、43、53 外側巻鉄心 5 コイル 6、21、22、23、24、25、26、27 磁性材 1,31,32 three-phase wound core 2,41,51 first inner wound iron core 3,42,52 second inner wound core 4,43,53 outside wound iron core 5 coils 6,21,22,23,24 , 25, 26, 27 magnetic material

Claims (12)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 電磁鋼板を積層した三相巻鉄心と、前記三相巻鉄心の継鉄部の積み厚方向に配された磁性材とを備えた静止誘導電磁機器。 1. A static induction device comprising a three-phase winding core formed by laminating magnetic steel sheets, and a magnetic material disposed in stacked thickness direction of the yoke portion of the three-phase wound core.
  2. 【請求項2】 磁性材は三相巻鉄心上に配された請求項1記載の静止誘導電磁機器。 2. A static induction device according to claim 1, wherein the magnetic material is arranged on the three-phase winding core.
  3. 【請求項3】 磁性材は剛性を有すると共に、内側巻鉄心の外周面と外側巻鉄心の内周面との間に配された請求項1記載の静止誘導電磁機器。 3. A magnetic material with a rigid, stationary induction apparatus according to claim 1, wherein disposed between the outer peripheral surface and the inner peripheral surface of the outer wound core of the inner wound core.
  4. 【請求項4】 磁性材は内側巻鉄心の継鉄部の内周面の平坦部分に配された請求項1記載の静止誘導電磁機器。 4. A magnetic material is stationary induction electromagnetic device according to claim 1, wherein arranged on the flat portion of the inner peripheral surface of the yoke portion of the inner winding core.
  5. 【請求項5】 磁性材は少なくとも内側巻鉄心の角部を含む継鉄部の内周面に沿わせて配された請求項1記載の静止誘導電磁機器。 5. The magnetic material is stationary induction electromagnetic device according to claim 1, wherein arranged in and along the inner peripheral surface of the yoke portion including the corner portion of at least the inner winding core.
  6. 【請求項6】 電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心と、前記三相巻鉄心の継鉄部の側面に配した磁性材とを備えた静止誘導電磁機器。 Comprising 6. A two inner wound core formed by laminating magnetic steel sheets and three-phase wound core consisting of one of the outer wound core, and a magnetic material arranged on the side surface of the yoke portion of the three-phase wound core stationary induction electromagnetic equipment was.
  7. 【請求項7】 磁性材は継鉄部に沿った方向の端部が傾斜した請求項6記載の静止誘導電磁機器。 7. A static induction device according to claim 6, wherein the ends of the magnetic material along the yoke portion is inclined.
  8. 【請求項8】 磁性材が電磁鋼板の積層物である請求項1から7のいずれかに記載の静止誘導電磁機器。 8. stationary induction apparatus of a magnetic material according to any of claims 1 a laminate of electromagnetic steel sheets 7.
  9. 【請求項9】 磁性材の透磁率が巻鉄心を構成する電磁鋼板の透磁率より大きい請求項1から8のいずれかに記載の静止誘導電磁機器。 9. stationary induction apparatus according to any one of the magnetic permeability is greater than a first aspect of the electrical steel sheet 8 of the magnetic permeability of the magnetic material constituting the wound core.
  10. 【請求項10】 磁性材がフェライトまたはパーマロイである請求項9記載の静止誘導電磁機器。 10. A static induction device according to claim 9, wherein the magnetic material is ferrite or permalloy.
  11. 【請求項11】 電磁鋼板を積層した2個の内側巻鉄心と1個の外側巻鉄心からなる三相巻鉄心であって、前記三相巻鉄心の継鉄部の少なくとも一部の幅寸法が前記三相巻鉄心の脚部の幅寸法より大きい静止誘導電磁機器。 11. A three-phase wound core consisting of two inner wound iron core and one outer winding core formed by laminating electromagnetic steel sheets, at least a portion of the width of the yoke portion of the three-phase wound core is width greater than the stationary induction apparatus of the legs of the three-phase wound core.
  12. 【請求項12】 脚部の幅寸法より大きい継鉄部に沿った方向の端部が傾斜した請求項10記載の静止誘導電磁機器。 12. stationary induction electromagnetic apparatus of claim 10, wherein the end portion in the direction along the width dimension larger than the yoke portions of the leg portions is inclined.
JP2001001338A 2001-01-09 2001-01-09 Stationary induction electromagnetic apparatus Pending JP2002208518A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008041877A (en) * 2006-08-04 2008-02-21 Sumitomo Electric Ind Ltd Reactor
JP2008159832A (en) * 2006-12-25 2008-07-10 Sumitomo Electric Ind Ltd Reactor
JP2008258291A (en) * 2007-04-03 2008-10-23 Hitachi Ltd Ignition coil for internal combustion engine, and manufacturing method thereof
JP2009088329A (en) * 2007-10-01 2009-04-23 Hitachi Metals Ltd Coil component
JP2011049495A (en) * 2009-08-28 2011-03-10 Sumitomo Electric Ind Ltd Reactor
JP2012174980A (en) * 2011-02-23 2012-09-10 Kyocera Corp Inductor component and electronic device
WO2015037544A1 (en) * 2013-09-10 2015-03-19 株式会社 豊田自動織機 Reactor device and method for manufacturing reactor device
JP2016058690A (en) * 2014-09-12 2016-04-21 Necトーキン株式会社 Reactor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008041877A (en) * 2006-08-04 2008-02-21 Sumitomo Electric Ind Ltd Reactor
JP2008159832A (en) * 2006-12-25 2008-07-10 Sumitomo Electric Ind Ltd Reactor
JP2008258291A (en) * 2007-04-03 2008-10-23 Hitachi Ltd Ignition coil for internal combustion engine, and manufacturing method thereof
JP2009088329A (en) * 2007-10-01 2009-04-23 Hitachi Metals Ltd Coil component
JP2011049495A (en) * 2009-08-28 2011-03-10 Sumitomo Electric Ind Ltd Reactor
JP2012174980A (en) * 2011-02-23 2012-09-10 Kyocera Corp Inductor component and electronic device
WO2015037544A1 (en) * 2013-09-10 2015-03-19 株式会社 豊田自動織機 Reactor device and method for manufacturing reactor device
JP2015056422A (en) * 2013-09-10 2015-03-23 株式会社豊田自動織機 Reactor device and method of manufacturing reactor device
JP2016058690A (en) * 2014-09-12 2016-04-21 Necトーキン株式会社 Reactor

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