JPS60260117A - Stationary induction apparatus - Google Patents

Stationary induction apparatus

Info

Publication number
JPS60260117A
JPS60260117A JP59114590A JP11459084A JPS60260117A JP S60260117 A JPS60260117 A JP S60260117A JP 59114590 A JP59114590 A JP 59114590A JP 11459084 A JP11459084 A JP 11459084A JP S60260117 A JPS60260117 A JP S60260117A
Authority
JP
Japan
Prior art keywords
winding
magnetic shield
tank
attached
end part
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
JP59114590A
Other languages
Japanese (ja)
Inventor
Mitsumasa Hashimoto
橋本　充正
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 JP59114590A priority Critical patent/JPS60260117A/en
Publication of JPS60260117A publication Critical patent/JPS60260117A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

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

Abstract

PURPOSE:To improve dielectric strength for winding through alleviation of electric field at the end part of magnetic shield and form a compact electrostatic induction apparatus by attaching an insulator cap to the end part of magnetic shield opposed to the winding. CONSTITUTION:A magnetic shield 6 made of a silicon steel plate is provided at the internal side of a tank 3 accommodating a winding 1 and an iron core 2. The winding 1 is guided to the outside through a lead wire 4 and a bushing 5 and a part of tank 3 is formed as the extruded part 3' for rising part of lead wire 4. The magnetic shield 6 is attached to both internal sides of tank 3 opposing to the winding 1 and the steel plate shield 8 is provided to the extruded part 3' of tank. In such a structure, the magnetic shield 6 in the side of extruded part 3' of tank is attached in such a way that it is a little protruded from the flat part of tank 3 and the end part is chamfered. An insulator cap 7 formed by the valve mold is attached to the end part 6' of such magnetic shield and is closely set thereto. Electric field of end part 6' of magnetic shield opposed to the winding 1 can be alleviated and the size of insulator between the winding 1 and magnetic shileld 6 can be set small.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は静止誘導電器に係り、特に、タンク内面に磁気
シールドを設けた変圧器及び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 a stationary induction electric appliance, and particularly to a transformer and a reactor provided with a magnetic shield on the inner surface of a tank.

〔発明の背景〕[Background of the invention]

従来の変圧器、又は、リアクトルでは、第１図に示すよ
うに、巻線１及び鉄心２はタンク３の収納され、巻線１
はリード線４及びブッシング５を介して外部へ接続され
る。さらに１巻線１からの漏れ磁束によるタンク３の壁
の局部過熱を防止するため、タンク３の内面には銅板、
又は、ケい素鋼板等の磁気シールド６が貼付けられる。In a conventional transformer or reactor, as shown in FIG.
is connected to the outside via a lead wire 4 and a bushing 5. Furthermore, in order to prevent local overheating of the wall of the tank 3 due to leakage magnetic flux from the 1st winding 1, a copper plate is installed on the inner surface of the tank 3.
Alternatively, a magnetic shield 6 such as a silicon steel plate is attached.

ここで、この磁気シールド６はある厚みをもつため、巻
線１と磁気シールド６との絶縁寸法りが小さくなり、絶
縁耐力が低下するため、タンク３を大きくする必要があ
る。特に、磁気シールド端部６′と巻線１（又はリード
線４）が対向する部分には、磁気シールド端部６′に電
界が集中し、絶縁耐力が低下する。さらに、絶縁寸法り
を大きくすると、タンク３が大きくなり、重量、油量が
増大する欠点がある。Here, since the magnetic shield 6 has a certain thickness, the insulation dimension between the winding 1 and the magnetic shield 6 becomes small, and the dielectric strength decreases, so it is necessary to make the tank 3 larger. In particular, in the portion where the magnetic shield end 6' and the winding 1 (or the lead wire 4) face each other, the electric field concentrates on the magnetic shield end 6', resulting in a decrease in dielectric strength. Furthermore, if the insulation size is increased, the tank 3 will become larger, resulting in an increase in weight and oil amount.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、磁気シールド端部の電界を緩和して巻
線に対する絶縁耐力を向上させ、コンパクトにできる静
止誘導電器を提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a static induction appliance that can be made compact by relaxing the electric field at the end of the magnetic shield and improving the dielectric strength of the winding.

〔発明の概要〕[Summary of the invention]

本発明の要点は巻線と対向する磁気シールド端部に絶縁
物キャップを取付けることにある。The gist of the invention is to attach an insulator cap to the end of the magnetic shield facing the winding.

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

本発明の実施例を第２図ないし第４図を用いて説明する
。巻線１と鉄心２を収納したタンク３にはけい素鋼板か
ら成る磁気シールド６が内面に取付けられている。巻線
１はリード線４及びブッシング５を介して外部へ引出さ
れ、リード線４の立上がりのためタンク３の一部は凸部
３′に形成されている。磁気シールド６は巻線１に対向
してタンク３の面内面に取付けられ、タンク凸部３′に
銅板シールド８が取付けられている。Embodiments of the present invention will be described using FIGS. 2 to 4. A magnetic shield 6 made of a silicon steel plate is attached to the inner surface of a tank 3 containing a winding 1 and an iron core 2. The winding 1 is drawn out to the outside via a lead wire 4 and a bushing 5, and a part of the tank 3 is formed into a convex portion 3' for the purpose of raising the lead wire 4. A magnetic shield 6 is attached to the inner surface of the tank 3 facing the winding 1, and a copper plate shield 8 is attached to the tank convex portion 3'.

このような構成でタンク凸部３′側の磁気シールド６は
タンク３の平板部より少し出る程度に取付けられ、先端
が角部となっている。With this configuration, the magnetic shield 6 on the side of the tank convex portion 3' is attached to the extent that it protrudes slightly from the flat plate portion of the tank 3, and its tip is a corner portion.

この磁気シールドの端部６′にパルプモールドによって
成形された絶縁物キャップ７を取付け。An insulator cap 7 formed by pulp molding is attached to the end 6' of this magnetic shield.

密着する。In close contact.

本発明の実施例によれば、巻線１に対向する磁気シール
ド端部６′の電界が緩和でき１巻線１と磁気シールド６
の絶縁寸法Ｑ％小さくできる効果がある。According to the embodiment of the present invention, the electric field at the magnetic shield end 6' facing the winding 1 can be relaxed.
This has the effect of reducing the insulation dimension by Q%.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、磁気シールド端部の電界緩和により絶
縁耐力を向上できる６又、磁気シールドと巻線との絶縁
寸法を小さくでき、タンクを小さくして重量、油量を低
減できる。According to the present invention, the dielectric strength can be improved by relaxing the electric field at the end of the magnetic shield, the insulation dimensions between the magnetic shield and the winding can be reduced, and the tank can be made smaller to reduce the weight and amount of oil.

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

第１図は従来の変圧器又はリアクトルの断面図、第２図
は本発明の一実施例の変圧器又はリアクトルの断面図、
第３図は本発明の磁気シールド端部の断面図、第４図は
本発明の磁気シールド端部の正面図である。 １・・・巻線、２・・・鉄心、３・・・タンク、６・・
・磁気シールド、７・・・絶縁物ギャップ。 代理人　弁理士　高橋明夫 茅！　固 ６６− 茅２　固FIG. 1 is a sectional view of a conventional transformer or reactor, and FIG. 2 is a sectional view of a transformer or reactor according to an embodiment of the present invention.
FIG. 3 is a sectional view of the magnetic shield end of the present invention, and FIG. 4 is a front view of the magnetic shield end of the present invention. 1...Winding, 2...Iron core, 3...Tank, 6...
・Magnetic shield, 7...Insulator gap. Agent Patent Attorney Akio Takahashi! Hard 66- Kaya 2 Hard

Claims (1)

【特許請求の範囲】 １、巻線及び鉄心をタンクに収納し、このタンク内面に
けい素鋼板等から成る磁気シールドを取付けたものにお
いて、 前記巻線に対向する前記磁気シールドの端部に絶縁物キ
ャップを取付けたことを特徴とする静止誘導電器。 ２、特許請求の範囲第１項において、 前記絶縁物キャップがパルプモールド成形品であること
を特徴とする静止誘導電器。[Scope of Claims] 1. A winding and an iron core are housed in a tank, and a magnetic shield made of a silicon steel plate or the like is attached to the inner surface of the tank, wherein the end of the magnetic shield facing the winding is insulated. A stationary induction electric appliance characterized by an attached cap. 2. The stationary induction electric appliance according to claim 1, wherein the insulator cap is a pulp molded product.
JP59114590A 1984-06-06 1984-06-06 Stationary induction apparatus Pending JPS60260117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59114590A JPS60260117A (en) 1984-06-06 1984-06-06 Stationary induction apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59114590A JPS60260117A (en) 1984-06-06 1984-06-06 Stationary induction apparatus

Publications (1)

Publication Number Publication Date
JPS60260117A true JPS60260117A (en) 1985-12-23

Family

ID=14641663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59114590A Pending JPS60260117A (en) 1984-06-06 1984-06-06 Stationary induction apparatus

Country Status (1)

Country Link
JP (1) JPS60260117A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105428044A (en) * 2015-12-28 2016-03-23 保定天威保变电气股份有限公司 Lung-shaped shield stacking technology for transformer
CN110473687A (en) * 2014-09-29 2019-11-19 Lg伊诺特有限公司 Composite magnetic sheet and wireless charging module including the composite magnetic sheet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110473687A (en) * 2014-09-29 2019-11-19 Lg伊诺特有限公司 Composite magnetic sheet and wireless charging module including the composite magnetic sheet
CN105428044A (en) * 2015-12-28 2016-03-23 保定天威保变电气股份有限公司 Lung-shaped shield stacking technology for transformer
CN105428044B (en) * 2015-12-28 2017-04-05 保定天威保变电气股份有限公司 A kind of transformator lobe of the lung shields stacking technique

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