JPS61216311A - Hollow-core type reactor - Google Patents

Hollow-core type reactor

Info

Publication number
JPS61216311A
JPS61216311A JP60055929A JP5592985A JPS61216311A JP S61216311 A JPS61216311 A JP S61216311A JP 60055929 A JP60055929 A JP 60055929A JP 5592985 A JP5592985 A JP 5592985A JP S61216311 A JPS61216311 A JP S61216311A
Authority
JP
Japan
Prior art keywords
magnetic shield
rigidity
coil
magnetic
electromagnetic force
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP60055929A
Other languages
Japanese (ja)
Inventor
Kazutami Yoshiyuki
吉幸　和民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP60055929A priority Critical patent/JPS61216311A/en
Publication of JPS61216311A publication Critical patent/JPS61216311A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/08—Fixed transformers not covered by group H01F19/00 characterised by the structure without magnetic core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)

Abstract

PURPOSE:To enhance the rigidity of a magnetic shield as well as to reduce the vibration of the magnetic shield generated by electromagnetic force by a method wherein a member, having rigidity in the direction intersecting with the laminating direction of the magnetic shield, is arranged on the reverse side of the coil of the magnetic shield, and said member is fixed by welding to the magnetic shield. CONSTITUTION:A magnetic shield 2 is formed by laminating the magnetic material such as a silicon steel plate and the like, for example, and a magnetic shield member 5 opposing to a coil 1 and the corner part of the magnetic shield member 6 which is in parallel to the coil axis are superposed, bonded and formed into a frame shape. A member 7, having rigidity in the direction intersecting with the direction of lamination, is fixed by welding in the center of the magnetic shield 5 opposing to the coil 1. In the magnetic shield constituted as above, the rigidity of the region located in the vicinity of the member 5 of the magnetic shield 2 which has a large deformation amplitude is enhanced, and the amplitude generated by electromagnetic force can be reduced. Also, when the magnetic shield 5 is going to be fastened tight using an edge frame, a reinforcement member 7 is extended to the edge frame, and the reinforcement member 7 is fixed together with the magnetic shield, thereby enabling to further enhance the rigidity of the magnetic shield 2.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は分路リアクトル、直列リアクトルなどとして用
いる電気的なりアクドル、特に、磁気シールドをもつ空
心形リアクトルに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an electric reactor used as a shunt reactor, a series reactor, etc., and particularly to an air-core reactor having a magnetic shield.

（発明の背景〕 従来のりアクドルの磁気シールドの振動抑制方法をコイ
ルと磁気シールドを中心−上で断面して表わした第５図
に示す様に、コイル１に対向する磁気シールド５間をコ
イル１の中央開口部に設けられたコイル１の芯枠３や連
結部材８により機械的に結合し、磁気シールド５の振動
を抑制していた。しかし、この方法は、磁気シールド５
の積層作業および磁気シールド５と連結部材８との組合
せや磁気シールド全体とコイル１との組合せに多くの作
業時間を要するばかりでなく、磁気シールド本来の機能
を損うなどの問題があった。(Background of the Invention) As shown in FIG. 5, which is a cross-sectional view of the coil and the magnetic shield at the center, the vibration suppression method of the magnetic shield of the conventional glue handle is shown in FIG. The vibration of the magnetic shield 5 was suppressed by mechanically coupling the coil 1 with the core frame 3 and the connecting member 8 provided in the central opening of the coil 1. However, this method
Not only does the lamination work and the combination of the magnetic shield 5 and the connecting member 8 and the combination of the entire magnetic shield and the coil 1 require a lot of work time, but there are also problems such as impairing the original function of the magnetic shield.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、磁気シールドの剛性を高め、電磁力に
よる磁気シールドの振動を低減させることができるリア
クトルを提供することにある。An object of the present invention is to provide a reactor that can increase the rigidity of a magnetic shield and reduce vibrations of the magnetic shield due to electromagnetic force.

（発明の概要〕 磁気シールドをもつ空心形リアクトルでは、磁気シール
ドに入射する磁束によって磁気シールドは磁束密度の二
乗に比例する電磁力でコイルの軸方向に吸引される。磁
束は第３図（ａ）のような交番磁束であり、磁束密度も
同様に時間に対して周期的に変化する。電磁力は磁束密
度の二乗に比例するから、第３図（ｂ）のような交番磁
束の二倍の周期で変動する。この電磁力により磁気シー
ルドは、第４図の破線で示すように、変形振動し、この
振動振巾が大きい場合には大きな騒音を発生したり、磁
気シールドの振動がタンクや外部付属品などに伝播して
悪影響を及ぼすことになる。磁気シールドの振動は、主
として磁気シールドの曲げ剛性によって定まり、曲げ剛
性を高めることによって振動を抑制することができる。(Summary of the invention) In an air-core reactor with a magnetic shield, the magnetic flux incident on the magnetic shield attracts the magnetic shield in the axial direction of the coil with an electromagnetic force proportional to the square of the magnetic flux density. ), and the magnetic flux density similarly changes periodically with respect to time.Since the electromagnetic force is proportional to the square of the magnetic flux density, it is twice the alternating magnetic flux as shown in Figure 3 (b). This electromagnetic force causes the magnetic shield to deform and vibrate, as shown by the broken line in Figure 4.If the amplitude of this vibration is large, it may generate a large noise, or the vibration of the magnetic shield may cause the tank to vibrate. The vibration of the magnetic shield is mainly determined by the bending rigidity of the magnetic shield, and the vibration can be suppressed by increasing the bending rigidity.

単相空心形リアクトルの磁束分布と電磁力の発生状況か
ら、コイル１の中央部に対向する磁気シールドの反コイ
ル側の部位では、第２図に示すように、磁束密度は他と
比べて非常に少なく、電磁力による曲げモーメントは、
第４図に示すように、最大になる。このことは、コイル
１の中央部に対向する磁気シールドの反コイル側の部位
に磁気シールドの剛性を高める部材を固着できることを
示している。From the magnetic flux distribution and the generation of electromagnetic force in a single-phase air-core reactor, the magnetic flux density on the opposite coil side of the magnetic shield facing the center of coil 1 is extremely high compared to the other parts, as shown in Figure 2. The bending moment due to electromagnetic force is
As shown in FIG. 4, it reaches its maximum. This indicates that a member that increases the rigidity of the magnetic shield can be fixed to the opposite side of the magnetic shield to the center of the coil 1.

【発明の実施例〕[Embodiments of the invention]

第１図は、本発明の一実施例を示すもので、単相空心リ
アクトルの磁気シールドのみを取出して示したものであ
る。磁気シールド２は１例えば。FIG. 1 shows an embodiment of the present invention, in which only the magnetic shield of a single-phase air-core reactor is shown. For example, magnetic shield 2 is 1.

硅素鋼板などの磁性材を積層して形成し、コイル１に対
向する磁気シールド部材５とコイル軸に平行な磁気シー
ルド部材６の隅角部を重ねて接合することにより枠状に
形成している。It is formed by laminating magnetic materials such as silicon steel plates, and is formed into a frame shape by overlapping and joining the corners of a magnetic shielding member 5 facing the coil 1 and a magnetic shielding member 6 parallel to the coil axis. .

コイル１に対向する磁気シールド５の中央に積層方向と
交叉する方向に剛性をもつ部材７を溶接固着する。この
ように構成された磁気シールドは、変形振巾の大きい磁
気シールド２の部材５の中央付近の剛性が高くなり、電
磁力による振巾を低減させることができる。また、磁気
シールド５を端枠によって締付ける場合、補強部材７を
端枠まで延長し、磁気シールドと共に固着すれば磁気シ
ールド２の剛性をより一層高めることができる。A member 7 having rigidity in a direction crossing the stacking direction is welded and fixed to the center of the magnetic shield 5 facing the coil 1. In the magnetic shield configured in this way, the rigidity near the center of the member 5 of the magnetic shield 2 where the amplitude of deformation is large is increased, and the amplitude due to electromagnetic force can be reduced. Further, when the magnetic shield 5 is tightened by the end frame, the rigidity of the magnetic shield 2 can be further increased by extending the reinforcing member 7 to the end frame and fixing it together with the magnetic shield.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、磁気シールドの剛性を高められ、電磁
力による磁気シールドの振動の低減が図れる。According to the present invention, the rigidity of the magnetic shield can be increased, and vibration of the magnetic shield due to electromagnetic force can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例の空心リアクトルの磁気シー
ルドの斜視図、第２図は単相空心リアクトルの磁束分布
図、第３図は磁束（磁束密度）（ａ）及び電磁力（ｂ）
の変化を示す略図。 第４図は磁気シールドの変形状態を示す略図、第５図は
従来構造の側面図である。 １・・・コイル、２・・・磁気シールド、５・・・磁気
シールド部材、７・・・剛性部材、８・・・連結部材。Fig. 1 is a perspective view of the magnetic shield of an air-core reactor according to an embodiment of the present invention, Fig. 2 is a magnetic flux distribution diagram of a single-phase air-core reactor, and Fig. 3 is a magnetic flux (magnetic flux density) (a) and electromagnetic force (b). )
Schematic diagram showing changes in . FIG. 4 is a schematic diagram showing a deformed state of the magnetic shield, and FIG. 5 is a side view of the conventional structure. DESCRIPTION OF SYMBOLS 1... Coil, 2... Magnetic shield, 5... Magnetic shield member, 7... Rigid member, 8... Connection member.

Claims (1)

【特許請求の範囲】 １、硅素鋼板などの磁性材を積層して矩形枠状に形成し
た磁気シールドと、この磁気シールドの枠内に配置され
たコイルからなる空心リアクトルにおいて、 前記コイルの中央軸方向に対向する前記磁気シールドの
反コイル側に、前記磁気シールドの積層方向と交叉する
方向に剛性をもつ部材を配置し、磁気シールドと溶接固
着したことを特徴とする空心形リアクトル。[Claims] 1. In an air-core reactor comprising a magnetic shield formed into a rectangular frame shape by laminating magnetic materials such as silicon steel plates, and a coil arranged within the frame of the magnetic shield, the central axis of the coil An air-core reactor characterized in that a member having rigidity in a direction intersecting the stacking direction of the magnetic shield is disposed on the opposite coil side of the magnetic shield and is welded and fixed to the magnetic shield.
JP60055929A 1985-03-22 1985-03-22 Hollow-core type reactor Pending JPS61216311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60055929A JPS61216311A (en) 1985-03-22 1985-03-22 Hollow-core type reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60055929A JPS61216311A (en) 1985-03-22 1985-03-22 Hollow-core type reactor

Publications (1)

Publication Number Publication Date
JPS61216311A true JPS61216311A (en) 1986-09-26

Family

ID=13012774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60055929A Pending JPS61216311A (en) 1985-03-22 1985-03-22 Hollow-core type reactor

Country Status (1)

Country Link
JP (1) JPS61216311A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000036616A1 (en) * 1998-12-11 2000-06-22 Xi'an Yangzi Electrical Co., Ltd. A dry-type air-core reactor with magnetic shield
CN104734706A (en) * 2013-12-20 2015-06-24 精工爱普生株式会社 Quantum Interference Device, Atomic Oscillator, Electronic Apparatus, And Moving Object

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000036616A1 (en) * 1998-12-11 2000-06-22 Xi'an Yangzi Electrical Co., Ltd. A dry-type air-core reactor with magnetic shield
CN104734706A (en) * 2013-12-20 2015-06-24 精工爱普生株式会社 Quantum Interference Device, Atomic Oscillator, Electronic Apparatus, And Moving Object
JP2015119151A (en) * 2013-12-20 2015-06-25 セイコーエプソン株式会社 Quantum interference device, atomic oscillator, electronic apparatus and movable body

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