JPS5980918A - Shielding structure inter-windings of transformer - Google Patents

Shielding structure inter-windings of transformer

Info

Publication number
JPS5980918A
JPS5980918A JP57190844A JP19084482A JPS5980918A JP S5980918 A JPS5980918 A JP S5980918A JP 57190844 A JP57190844 A JP 57190844A JP 19084482 A JP19084482 A JP 19084482A JP S5980918 A JPS5980918 A JP S5980918A
Authority
JP
Japan
Prior art keywords
windings
inter
electrode
twentieth
reduced
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
JP57190844A
Other languages
Japanese (ja)
Inventor
Hideo Ishiguro
石黒　秀雄
Shigeru Hosoda
茂 細田
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 JP57190844A priority Critical patent/JPS5980918A/en
Publication of JPS5980918A publication Critical patent/JPS5980918A/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
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

PURPOSE:To reduce capacitance of the inter-windings to one twentieth as much as the conventional windings by vertically positioning shield electrodes between the windings and separating two windings without reducing the occupying rate of the windings. CONSTITUTION:The shape of the shield electrode resembles the collar of a bobbin, one is notched in order to prevent a short circuit, and a projection for connecting an outgoing line is formed. The shield electrode is positioned rectangularly to main magnetic flux, and wires are wound on both sides of the electrode, thus executing electrostatic shielding. Capacitance of the inter-windings is reduced to one twentieth as much as the conventional constitution, the value of longitudinal currents flowing through a ground electrode is also reduced to one twentieth by the application of longitudinal voltage, and floating caused by the reactance of a ground circuit is also reduced.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明はトランスの捲線構造に係り、捲線間容量を減ら
し、縦伝送減衰量を十分得るのに好適なシールド構造に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a winding structure of a transformer, and more particularly to a shield structure suitable for reducing inter-winding capacitance and obtaining sufficient longitudinal transmission attenuation.

〔従来技術〕[Prior art]

一般的なトランスの回路を第１図に示す。１および２は
捲線、３はシールド電極を示し、Ｃは捲線間容量を示す
。普通の捲線方法は第２図に示すボビン九、捲＃Ｊ１を
、しかる後にシールド電極３をそれぞれまき、捲線２を
完成する。Figure 1 shows a typical transformer circuit. 1 and 2 indicate the windings, 3 indicates the shield electrode, and C indicates the capacitance between the windings. The usual winding method is to wind bobbin 9 and winding #J1 as shown in FIG. 2, and then wind shield electrode 3 to complete winding 2.

その断面図を第５図に示す。これは捲線１と２との対向
面積が多いため、線間容量Ｃが２０　Ｑ　ＰＦ程度存在
し、縦減衰量の劣化をまねく、またシールド電極５を介
しても、その接地経路のりアクタンスにより、高い周波
数においては完全接地は望めず、縦減衰量の改善は十分
でない。A sectional view thereof is shown in FIG. This is because the opposing area between the windings 1 and 2 is large, so there is a line capacitance C of about 20 Q PF, which leads to a deterioration of the longitudinal attenuation. Perfect grounding cannot be expected at high frequencies, and improvement in longitudinal attenuation is not sufficient.

〔発明の目的〕[Purpose of the invention]

本発明の目的は捲線間容量を従来の１／２ｏに減らし、
トランスの縦減衰量を十分に得られる構造に関するもの
である。The purpose of the present invention is to reduce the inter-winding capacity to 1/2o of the conventional one,
The present invention relates to a structure that can obtain sufficient longitudinal attenuation of the transformer.

〔発明の概要〕[Summary of the invention]

すなわち、本発明は分割まきは捲線間容量を減らす手段
として知られている。捲線間にシールド電極をたてにお
き捲線占有率を減らすことなし忙２つの捲線な分離させ
るようにしたものである。That is, in the present invention, split winding is known as a means for reducing the capacitance between windings. A shield electrode is placed vertically between the windings, and the two windings can be separated without reducing the winding occupancy.

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

本発明の一実施例を第４図に示す。これは捲線構造の断
面図で、１および２が捲線、３がシールド電極、４がボ
ビンである。また、シールド電極５の形状を第一５図お
よび第６図に示す。An embodiment of the present invention is shown in FIG. This is a cross-sectional view of the winding structure, where 1 and 2 are windings, 3 is a shield electrode, and 4 is a bobbin. Further, the shape of the shield electrode 5 is shown in FIGS. 15 and 6.

このような形状にすることで、丸形ボビン、角形ボビン
に合わせて使いわけることができる。With this shape, it can be used for round bobbins and square bobbins.

シールド電極の形状はボビンのツバに類似して作り、短
絡防止のために、一部を切り欠き、かつ引出線を接続す
るための突起を設ける。これを、主磁束と直角におき、
その両側に捲線をまくことにより静電遮弊を実施できる
。The shape of the shield electrode is made to resemble the brim of a bobbin, and a portion is cut out to prevent short circuits, and a projection is provided for connecting the lead wire. Place this at right angles to the main magnetic flux,
Electrostatic shielding can be achieved by winding the wire on both sides.

また、多液線の場合を第７図に示す。Moreover, the case of a multi-liquid line is shown in FIG.

〔発明の効果〕〔Effect of the invention〕

以上述べたよ５に本発明は捲線間容量Ｃが第３図に示す
従来の構成では２００ＰＦＩ／Ｃ対してろ。As stated above, in the present invention, the inter-winding capacitance C is 200 PFI/C in the conventional configuration shown in FIG.

の１０ＰＦに減少し得る。また、縦電圧の印加によりア
ース電極に縦電流が流れるが、その値も１／！ｏになり
、接地回路のりアクタンスによる浮き上りも小さく、ト
ランスの縦減衰量として好ましい結果を得ることができ
る。can be reduced to 10PF. Also, when a vertical voltage is applied, a vertical current flows through the ground electrode, but its value is also 1/! 0, the rise due to the actance of the grounding circuit is also small, and a desirable result can be obtained as the amount of longitudinal attenuation of the transformer.

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

第１図はトランスの回路図、第２図はボビンの外観図、
第３図は捲線の断面図、第４図乃至第６図はいずれも本
発明の一実施例を示すもので、第４図は捲線の断面図、
第５図、第６図はシールド電極の外観図、第７図は多液
線トランスの断面図である。 １および２は捲線、３はシールド電極、４はボビンを示
す。 オ　１１！Ｉ ｌ１−１ １　　！ オ　３　閃 第４国 ｆｉｓロ 第６国 汁２０Figure 1 is a circuit diagram of the transformer, Figure 2 is an external view of the bobbin,
FIG. 3 is a sectional view of the winding, and FIGS. 4 to 6 all show an embodiment of the present invention, and FIG. 4 is a sectional view of the winding.
5 and 6 are external views of the shield electrode, and FIG. 7 is a sectional view of the multi-liquid wire transformer. 1 and 2 are windings, 3 is a shield electrode, and 4 is a bobbin. Oh 11! I l1-1 1! O 3 Sen 4th country fisro 6th country soup 20

Claims (1)

【特許請求の範囲】[Claims] 切欠き部を有する還状導体を主磁束方向と直角に置きシ
ールド電極とし、その両側へ捲線を配置し分割捲線構造
としたことを特徴とするトランス捲線間シールド構造。A transformer inter-winding shield structure characterized in that a ring-shaped conductor having a notch is placed perpendicular to the main magnetic flux direction and serves as a shield electrode, and windings are arranged on both sides of the ring-shaped conductor to form a split winding structure.
JP57190844A 1982-11-01 1982-11-01 Shielding structure inter-windings of transformer Pending JPS5980918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57190844A JPS5980918A (en) 1982-11-01 1982-11-01 Shielding structure inter-windings of transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57190844A JPS5980918A (en) 1982-11-01 1982-11-01 Shielding structure inter-windings of transformer

Publications (1)

Publication Number Publication Date
JPS5980918A true JPS5980918A (en) 1984-05-10

Family

ID=16264707

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57190844A Pending JPS5980918A (en) 1982-11-01 1982-11-01 Shielding structure inter-windings of transformer

Country Status (1)

Country Link
JP (1) JPS5980918A (en)

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