JPH0549036A - Cathode ray tube device - Google Patents

Cathode ray tube device

Info

Publication number
JPH0549036A
JPH0549036A JP20274291A JP20274291A JPH0549036A JP H0549036 A JPH0549036 A JP H0549036A JP 20274291 A JP20274291 A JP 20274291A JP 20274291 A JP20274291 A JP 20274291A JP H0549036 A JPH0549036 A JP H0549036A
Authority
JP
Japan
Prior art keywords
coil
deflection
leakage
horizontal
cathode ray
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
JP20274291A
Other languages
Japanese (ja)
Inventor
Makoto Kaneda
真 金田
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.)
Toshiba Corp
Toshiba Development and Engineering Corp
Original Assignee
Toshiba Corp
Toshiba Electronic Engineering Co 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 Toshiba Corp, Toshiba Electronic Engineering Co Ltd filed Critical Toshiba Corp
Priority to JP20274291A priority Critical patent/JPH0549036A/en
Publication of JPH0549036A publication Critical patent/JPH0549036A/en
Pending legal-status Critical Current

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  • Details Of Television Scanning (AREA)

Abstract

PURPOSE:To prevent the effect of heat generated from a leakage magnetic flux compensation coil. CONSTITUTION:In the cathode ray tube device consisting of a saddle type horizontal deflection coil 30 and a saddle type or troidal type vertical deflection coil 31, a coil 38 is wound to the combination of two collumnar magnetic bodies or over forming a space with a deflection yoke, and a leakage magnetic flux compensation coil 35 generating two-pole magnetic field reducing a leakage magnetic flux generated from the deflection yoke is arranged corresponding to at least one of the horizontal vertical deflection coils 31 by supplying a deflection current flowing to the horizontal vertical deflection coils 30, 31 or a current synchronously with the deflection current to the coil 38.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、偏向ヨークの水平、
垂直偏向コイルから発生して、偏向ヨークの外部に漏洩
する漏洩磁場を軽減するようにした陰極線管装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a cathode ray tube device configured to reduce a leakage magnetic field generated from a vertical deflection coil and leaking to the outside of a deflection yoke.

【0002】[0002]

【従来の技術】最近、北欧を中心に人体に対する漏洩磁
場の影響を取上げ、その漏洩磁場を規制する動きが活発
化している。この漏洩磁場に関するMPR(SSI)規
格においては、5Hz〜2kHz および2kHz 〜400kHz
の磁場を問題とし、陰極線管装置については、偏向ヨー
クから発生する磁束のうち、電子銃から放出される電子
ビームの偏向に寄与しない部分の磁束、すなわち漏洩磁
束をかなりのレベルまで減少させることを必要としてい
る。上記磁場のうち、5Hz〜2kHz の磁場は、偏向ヨー
クの垂直偏向コイルから発生する磁場に対応し、2kHz
〜400kHz の磁場は、水平偏向コイルから発生する磁
場に対応する。
2. Description of the Related Art Recently, the influence of a leakage magnetic field on the human body has been taken up mainly in Northern Europe, and the movement to regulate the leakage magnetic field has become active. In the MPR (SSI) standard for this leakage magnetic field, 5 Hz to 2 kHz and 2 kHz to 400 kHz
In the cathode ray tube device, it is necessary to reduce the magnetic flux of the portion that does not contribute to the deflection of the electron beam emitted from the electron gun, that is, the leakage flux, to a considerable level. In need of. Of the above magnetic fields, the magnetic field of 5 Hz to 2 kHz corresponds to the magnetic field generated from the vertical deflection coil of the deflection yoke and is 2 kHz.
The magnetic field of 400 kHz corresponds to the magnetic field generated by the horizontal deflection coil.

【0003】図4に示す偏向ヨークは、カラー受像管な
どの陰極線管に装着される一般的な偏向ヨークであり、
セパレータ1の内側に陰極線管の電子銃から放出された
電子ビームを水平方向に偏向する磁場を発生する上下一
対のサドル形水平偏向コイル2が水平軸(X軸)を挟ん
で配置されている。またセパレータ1の外側に電子銃か
ら放出された電子ビームを垂直方向に偏向する磁場を発
生する左右一対のサドル形垂直偏向コイル3が垂直軸
(Y軸)を挟んで配置され、このサドル形垂直偏向コイ
ル3の外周を取囲むように円錐筒状のコア4が配置され
ている。
The deflection yoke shown in FIG. 4 is a general deflection yoke mounted on a cathode ray tube such as a color picture tube.
Inside the separator 1, a pair of upper and lower saddle type horizontal deflection coils 2 for generating a magnetic field for horizontally deflecting an electron beam emitted from an electron gun of a cathode ray tube are arranged with a horizontal axis (X axis) interposed therebetween. Further, a pair of left and right saddle type vertical deflection coils 3 for generating a magnetic field for vertically deflecting an electron beam emitted from an electron gun is arranged outside the separator 1 with a vertical axis (Y axis) interposed therebetween. A conical tubular core 4 is arranged so as to surround the outer circumference of the deflection coil 3.

【0004】この偏向ヨークでは、水平偏向コイル2か
ら発生する磁束の大部分は、セパレータ1外側の垂直偏
向コイル3外周を取囲むコア4によって偏向ヨークの内
側空間5に封じ込められるが、一部は、漏洩磁束として
偏向ヨークの外側に放射される。図5は、その水平偏向
コイル2によって形成される水平偏向磁場の漏洩状態を
示したものである。通常水平偏向主磁束6の漏れ磁束7
は、曲線8a,8bで示す30〜40°の開き角で広がってお
り、その上下に水平偏向コイル2の前面渡り部9から上
記主磁束6とは逆向きに漏洩磁束10が発生している。
In this deflection yoke, most of the magnetic flux generated from the horizontal deflection coil 2 is confined in the inner space 5 of the deflection yoke by the core 4 surrounding the outer periphery of the vertical deflection coil 3 outside the separator 1, but a part of it is contained. Is radiated to the outside of the deflection yoke as a leakage magnetic flux. FIG. 5 shows the leakage state of the horizontal deflection magnetic field formed by the horizontal deflection coil 2. Normal horizontal deflection main magnetic flux 6 leakage magnetic flux 7
Is spread at an opening angle of 30 to 40 ° shown by curves 8a and 8b, and a leakage magnetic flux 10 is generated above and below the front crossover 9 of the horizontal deflection coil 2 in the direction opposite to the main magnetic flux 6. ..

【0005】垂直偏向コイル3によって形成される垂直
偏向磁場の漏洩状態も、磁束の向きが90°違うだけでほ
ぼ同様に分布する。
The leakage state of the vertical deflection magnetic field formed by the vertical deflection coil 3 is distributed in substantially the same manner except that the direction of the magnetic flux differs by 90 °.

【0006】この漏洩磁束を抑制する手段として、特開
昭62-64024号公報には、図6に示すように、サドル形水
平偏向コイル2の外側にコア4を介して水平偏向コイル
2とほぼ同形状の漏洩磁束補償コイル12a を配置し、こ
れに矢印13で示す水平偏向コイル2の主磁束の向きとは
逆向きの矢印14で示す向きの磁束が通るように、水平偏
向コイル2に流れる電流の一部を逆位相で流して、水平
偏向コイル2の漏洩磁束を減少させるようにしてものが
示されている。
As a means for suppressing this leakage magnetic flux, Japanese Patent Laid-Open No. 62-64024 discloses that, as shown in FIG. 6, the horizontal deflection coil 2 is almost disposed outside the saddle type horizontal deflection coil 2 via a core 4. A leakage flux compensating coil 12a having the same shape is arranged, and the magnetic flux flows in the horizontal deflection coil 2 such that the magnetic flux in the direction indicated by the arrow 14 opposite to the direction of the main magnetic flux of the horizontal deflection coil 2 indicated by the arrow 13 passes therethrough. It is shown that a part of the electric current is made to flow in the opposite phase to reduce the leakage magnetic flux of the horizontal deflection coil 2.

【0007】しかし、この漏洩磁束補償コイル12a で
は、所定位置における漏洩磁束を所定レベルまで減少さ
せる制御が難しく、また本来漏洩磁束の少ない位置に配
置されているため、偏向ヨークの後部などに対し補正が
ききすぎて逆効果になりやすい。
However, with the leakage flux compensating coil 12a, it is difficult to control the leakage flux at a predetermined position to a predetermined level, and since the leakage flux compensation coil 12a is originally arranged at a position where the leakage flux is small, correction is made to the rear portion of the deflection yoke. It tends to be too tight and has the opposite effect.

【0008】これに対し、最近上記漏洩磁束補償コイル
12a による漏洩磁束の抑制を発展させた形で、漏洩磁束
補償コイルの小形化、磁束の増大を目的として、図7に
示すように、磁性体15にコイル16を巻回した漏洩磁束補
償コイル12b を配置したものが発表されている。
On the other hand, recently, the above-mentioned leakage magnetic flux compensation coil
In order to reduce the size of the leakage flux compensating coil and to increase the magnetic flux, the leakage flux compensating coil 12b in which the coil 16 is wound around the magnetic body 15 is developed as shown in FIG. Has been announced.

【0009】しかし、この磁性体15にコイル16を巻回し
た漏洩磁束補償コイル12b では、現在開発が進められて
いる高精細カラー受像管のように、水平偏向周波数の高
い陰極線管装置に適用すると、漏洩磁束補償コイル12b
が発熱するという問題がある。
However, the leakage flux compensating coil 12b in which the coil 16 is wound around the magnetic body 15 is applied to a cathode ray tube device having a high horizontal deflection frequency, such as a high-definition color picture tube currently being developed. , Leakage flux compensation coil 12b
Has the problem of generating heat.

【0010】[0010]

【発明が解決しようとする課題】上記のように、従来よ
り磁性体にコイルを巻回した漏洩磁束補償コイルを偏向
ヨークに配置して、偏向ヨークから発生する漏洩磁束を
減少させるようにした陰極線管装置が発表されている。
しかしこのような漏洩磁束補償コイルを用いると、漏洩
磁束コイルが発熱し、偏向ヨーク自体の保障温度または
陰極線管装置の保障温度をオーバーさせ、陰極線管装置
の誤動作を引起こしたり、部品の破壊あるいは焼損など
の問題をおこす可能性がある。
As described above, the cathode flux in which the leakage flux compensating coil in which a coil is wound around a magnetic material has been arranged in the deflection yoke so as to reduce the leakage flux generated from the deflection yoke. The tube device has been announced.
However, when such a leakage flux compensating coil is used, the leakage flux coil generates heat, which causes the deflection yoke itself or the guarantee temperature of the cathode ray tube device to be exceeded, resulting in malfunction of the cathode ray tube device or destruction of parts or It may cause problems such as burnout.

【0011】この発明は、上記問題点に鑑みてなされた
ものであり、陰極線管装置の偏向ヨークから漏洩する漏
洩磁束を軽減するために、磁性体にコイルを巻回した漏
洩磁束補償コイルを用いても、この漏洩磁束補償コイル
から発生する熱の影響をなくすことを目的とする。
The present invention has been made in view of the above problems, and uses a leakage flux compensating coil in which a coil is wound around a magnetic body in order to reduce the leakage flux leaking from the deflection yoke of the cathode ray tube device. However, the purpose is to eliminate the influence of heat generated from the leakage flux compensating coil.

【0012】[0012]

【課題を解決するための手段】陰極線管にサドル型水平
偏向コイルとサドル型またはトロイダル型垂直偏向コイ
ルとを有する偏向ヨークが装着されてなる陰極線管装置
において、偏向ヨークとの間に空間を形成しうる2個以
上の柱状磁性体を組合わせにコイルを巻回し、このコイ
ルに水平、垂直偏向コイルに流す偏向電流またはこれら
電流に同期した電流を供給すことにより、偏向ヨークか
ら発生する漏洩磁場を軽減する2極磁場を発生する漏洩
磁束補償コイルを水平、直偏向コイルの少なくとも一方
に対応して配置した。
In a cathode ray tube device in which a deflection yoke having a saddle type horizontal deflection coil and a saddle type or toroidal type vertical deflection coil is mounted on a cathode ray tube, a space is formed between the deflection yoke and the deflection yoke. The leakage magnetic field generated from the deflection yoke is obtained by winding a coil with a combination of two or more columnar magnetic bodies that can be combined, and supplying a deflection current to the horizontal and vertical deflection coils or a current synchronized with these currents to this coil. A leakage flux compensating coil for generating a two-pole magnetic field for reducing the above is arranged corresponding to at least one of the horizontal and direct deflection coils.

【0013】[0013]

【作用】上記のように、偏向ヨークとの間に空間を形成
しうる2個以上の柱状磁性体を組合わせ、この柱状磁性
体の組合わせにコイルを巻回して漏洩磁束補償コイルと
すると、磁性体の表面積が拡大し、漏洩磁束補償コイル
の発熱を磁性体を介して効果的に放熱できるばかりでな
く、偏向ヨークとの間に形成される空間を通る空気の対
流により、偏向ヨークに対する漏洩磁束補償コイルの発
熱の影響を軽減できる。
As described above, when two or more columnar magnetic bodies capable of forming a space with the deflection yoke are combined, and a coil is wound around the combination of the columnar magnetic bodies to form a leakage flux compensating coil, The surface area of the magnetic body is expanded, so that the heat generated by the leakage flux compensating coil can be effectively dissipated via the magnetic body, and the convection of air through the space formed between the magnetic flux and the deflection yoke causes leakage to the deflection yoke. The influence of heat generation of the magnetic flux compensation coil can be reduced.

【0014】[0014]

【実施例】以下、図面を参照してこの発明を実施例に基
づいて説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described based on embodiments with reference to the drawings.

【0015】図2にその一実施例である陰極線管装置を
示す。この装置における陰極線管はカラー受像管であ
り、一体に接合されたパネル20およびファンネル21から
なる外囲器を有し、そのパネル20内面に、青、緑、赤に
発光する3色蛍光体層からなる蛍光体スクリーン22が形
成され、この蛍光体スクリーン22に対向して、その内側
に多数の電子ビーム通過孔の形成されたシャドウマスク
23が装着されている。また、ファンネル21のネック24内
に3電子ビーム25B ,25G ,25R を放出する電子銃26が
配設されている。そしてこのカラー受像管のファンネル
21の径大部とネック24との境界部外側に、上記電子銃26
から放出された3電子ビーム25B ,25G ,25R を水平お
よび垂直方向に偏向する磁場を発生する偏向ヨーク27が
装着されている。
FIG. 2 shows a cathode ray tube device which is an embodiment of the present invention. The cathode ray tube in this device is a color picture tube, and has an envelope composed of a panel 20 and a funnel 21 that are integrally joined, and a three-color phosphor layer that emits blue, green, and red on the inner surface of the panel 20. Is formed of a phosphor screen 22, and the shadow mask has a large number of electron beam passage holes formed therein, facing the phosphor screen 22.
23 is installed. An electron gun 26 that emits three electron beams 25B, 25G, and 25R is arranged in the neck 24 of the funnel 21. And the funnel of this color picture tube
Outside the boundary between the large diameter part of 21 and the neck 24, the electron gun 26
A deflection yoke 27 for generating a magnetic field for horizontally and vertically deflecting the three electron beams 25B, 25G, 25R emitted from is mounted.

【0016】この偏向ヨーク27は、サドル−サドル型に
形成され、図1に示すように、セパレータ29の内側に水
平軸(X軸)を挟んで上下対称に配置され、上記3電子
ビームを水平方向に偏向する水平偏向磁界を発生する一
対のサドル形水平偏向コイル30と、セパレータ29の外側
に垂直軸(Y軸)を挟んで左右対称に配置され、上記3
電子ビームを垂直方向に偏向する垂直偏向磁界を発生す
る一対のサドル形垂直偏向コイル31とを有する。その一
対の水平偏向コイル30は、それぞれ蛍光スクリーン側お
よび反対側の電子銃側に渡り部32a ,32b が形成されて
いる(図2参照)。同様に一対の垂直偏向コイル31も、
それぞれ蛍光スクリーン側および反対側の電子銃側に渡
り部33a ,33b が形成されている。また垂直偏向コイル
31の外周には、上記水平および垂直偏向コイル30,31の
渡り部32a ,32b ,33a ,33b を避けて、垂直偏向コイ
ル31を取囲むように円錐筒状のコア34が配置されてい
る。
The deflection yoke 27 is formed in a saddle-saddle type and, as shown in FIG. 1, is vertically symmetrically arranged inside the separator 29 with a horizontal axis (X axis) interposed therebetween, and the three electron beams are horizontally moved. And a pair of saddle-shaped horizontal deflection coils 30 that generate a horizontal deflection magnetic field that deflects in a direction, and are arranged symmetrically outside the separator 29 with a vertical axis (Y axis) interposed therebetween.
It has a pair of saddle type vertical deflection coils 31 for generating a vertical deflection magnetic field for vertically deflecting an electron beam. The pair of horizontal deflection coils 30 have crossover portions 32a and 32b formed on the fluorescent screen side and the opposite electron gun side, respectively (see FIG. 2). Similarly, the pair of vertical deflection coils 31 also
Crossovers 33a and 33b are formed on the fluorescent screen side and the opposite electron gun side, respectively. Also vertical deflection coil
A conical cylindrical core 34 is arranged around the outer periphery of the vertical deflection coil 31 while avoiding the crossover portions 32a, 32b, 33a, 33b of the horizontal and vertical deflection coils 30, 31.

【0017】さらに、この例の陰極線管装置では、上記
一対の水平偏向コイル30の蛍光スクリーン側渡り部32a
に接近して、コア34上に一対の漏洩磁束補償コイル35が
水平偏向コイル30に対応して上下に配置されている。こ
の一対の各漏洩磁束補償コイル35は、複数個(図示例で
は4個)の円柱状磁性体36を並列に組合わせてコアと
し、その並列に組合わされた複数個の円柱状磁性体36に
コイル38を巻回したものであり、円柱状磁性体36の端部
間に管軸に沿って2極の磁極を形成する配置となってい
る。なお、コイル38には、水平偏向コイル30に流れる水
平偏向電流またはこの水平偏向電流に同期した電流が供
給される。
Further, in the cathode ray tube device of this example, the fluorescent screen side crossover portion 32a of the pair of horizontal deflection coils 30 is arranged.
A pair of leakage flux compensating coils 35 are vertically arranged on the core 34 so as to correspond to the horizontal deflection coil 30. Each of the pair of leakage flux compensating coils 35 is composed of a plurality of (four in the illustrated example) columnar magnetic bodies 36 in parallel to form a core, and the plurality of columnar magnetic bodies 36 combined in parallel form a core. The coil 38 is wound, and is arranged so that two poles are formed along the tube axis between the ends of the cylindrical magnetic body 36. The coil 38 is supplied with a horizontal deflection current flowing in the horizontal deflection coil 30 or a current synchronized with the horizontal deflection current.

【0018】ところで、上記のように構成された漏洩磁
束補償コイル35を配置すると、この漏洩磁束補償コイル
35は、図3に示すように、一対の水平偏向コイル30の蛍
光スクリーン側渡り部32a の近傍に40で示す磁場を集中
して発生する。この磁場40は、その漏洩磁束補償コイル
35の近傍では、磁束41a のように水平偏向主磁束の漏れ
磁束7の領域外に発生し、水平偏向コイル30の蛍光スク
リーン側渡り部32a から主として発生する直接電子ビー
ムの偏向に寄与しない漏洩磁束と逆方向に発生して、そ
の漏洩磁束を打消す。またこの漏洩磁束補償コイル35か
ら離れた位置では、水平偏向主磁束の漏れ磁束7とは逆
向きの磁束41b を発生して、漏れ磁束7の時間的変化dB
/dT を小さくする。
By the way, when the leakage flux compensating coil 35 configured as described above is arranged, this leakage flux compensating coil is arranged.
As shown in FIG. 3, 35 generates a magnetic field indicated by 40 in the vicinity of the fluorescent screen side crossing portion 32a of the pair of horizontal deflection coils 30. This magnetic field 40 has its leakage flux compensation coil
In the vicinity of 35, the leakage flux, which is generated outside the area of the leakage magnetic flux 7 of the horizontal deflection main magnetic flux like the magnetic flux 41a, does not contribute to the deflection of the direct electron beam mainly generated from the fluorescent screen side crossing portion 32a of the horizontal deflection coil 30. Occurs in the opposite direction and cancels the leakage magnetic flux. Further, at a position away from the leakage magnetic flux compensation coil 35, a magnetic flux 41b in the direction opposite to the leakage magnetic flux 7 of the horizontal deflection main magnetic flux is generated, and the temporal change dB of the leakage magnetic flux 7 dB.
Reduce / dT.

【0019】しかも、この例の漏洩磁束補償コイル35
は、並列に組合わされた複数個の円柱状磁性体36をコア
として、これにコイル38を巻回したものであり、従来の
磁性体とコイルからなる漏洩磁束補償コイルにくらべて
コアの表面積が大きく、かつ偏向ヨーク27のコア34との
間に空間を形成するため、たとえば水平偏向周波数の高
い陰極線管装置に適用して発熱しても、そのコアの大き
な表面からの効果的な熱の放散と上記空間を通る空気の
対流とにより、その発熱を有効に取去ることができ、漏
洩磁束補償コイル35から発生する熱の影響を防止するこ
とができる。
Moreover, the leakage flux compensating coil 35 of this example is used.
Is a plurality of columnar magnetic bodies 36 combined in parallel as a core, and a coil 38 is wound around the core, and the surface area of the core is smaller than that of a conventional leakage flux compensating coil including a magnetic body and a coil. Since a large space is formed between the deflection yoke 27 and the core 34, even if it is applied to a cathode ray tube device having a high horizontal deflection frequency to generate heat, effective heat dissipation from the large surface of the core is achieved. By the convection of the air passing through the space, the heat generation can be effectively removed, and the influence of the heat generated from the leakage flux compensating coil 35 can be prevented.

【0020】なお、上記実施例では、漏洩磁束補償コイ
ルのコアを円柱状の磁性体の組合わせで構成したが、こ
の磁性体は円柱状に限らず、多角柱状など、要するに表
面積が増大し、かつ偏向ヨークに接近して配置しても、
偏向ヨークとの間に十分に空気を流通させる空間を形成
しうるものならば他の形状でもよい。
In the above embodiment, the core of the leakage flux compensating coil is composed of a combination of columnar magnetic bodies, but this magnetic body is not limited to a columnar shape, but a polygonal columnar shape, etc. And even if it is placed close to the deflection yoke,
Other shapes may be used as long as they can form a space for allowing sufficient air flow between the deflection yoke and the deflection yoke.

【0021】なおまた、上記実施例では、偏向ヨークの
水平偏向コイルから発生する漏洩磁束を減少させるべ
く、その水平偏向コイルに対応して漏洩磁束補償コイル
を配置した場合について説明したが、この漏洩磁束補償
コイルは、垂直偏向コイルから発生する漏洩磁束を減少
させる場合にも適用可能である。
Further, in the above-mentioned embodiment, the case where the leakage magnetic flux compensating coil is arranged corresponding to the horizontal deflection coil in order to reduce the leakage magnetic flux generated from the horizontal deflection coil of the deflection yoke has been described. The magnetic flux compensation coil is also applicable to reduce the leakage magnetic flux generated from the vertical deflection coil.

【0022】すなわち、上記実施例に示した偏向ヨーク
のように垂直偏向コイルがサドル型の場合は、垂直軸を
挟んで左右に配置されるので、この左右に配置された一
対の垂直偏向コイルの蛍光体スクリーン側の渡り部に接
近して、上記漏洩磁束補償コイルと同じ構成の漏洩磁束
補償コイルを、磁性体の端部間に管軸に沿って2極の磁
極が形成される配置すればよい。なお、この場合、コイ
ルには、 垂直偏向コイルに流す垂直偏向電流またはこ
の垂直偏向電流と同期した電流が供給される。
That is, when the vertical deflection coil is a saddle type like the deflection yoke shown in the above embodiment, the vertical deflection coils are arranged on the left and right sides with the vertical axis sandwiched therebetween. If a leakage flux compensating coil having the same structure as the above-mentioned leakage flux compensating coil is arranged close to the crossover portion on the phosphor screen side so that two magnetic poles are formed along the tube axis between the end portions of the magnetic substance. Good. In this case, the coil is supplied with a vertical deflection current flowing through the vertical deflection coil or a current synchronized with the vertical deflection current.

【0023】また、偏向ヨークの上下左右に漏洩磁束補
償コイルを配置して、水平偏向コイルから発生する漏洩
磁束とともに、垂直偏向コイルから発生する漏洩磁束を
減少させるように構成することは任意である。
Further, it is optional to arrange leakage flux compensating coils on the upper, lower, left and right sides of the deflection yoke to reduce the leakage flux generated from the horizontal deflection coil and the leakage flux generated from the vertical deflection coil. ..

【0024】また垂直偏向コイルがトロイダル型の場合
は、コアに巻回されて上下に配置されるので、このトロ
イダル型垂直偏向コイルから発生する漏洩磁束を減少さ
せる漏洩磁束補償コイルは、偏向ヨークの上下に配置さ
れる。この場合、水平偏向コイルがサドル型、垂直偏向
コイルがトロイダル型とするセミトロイダル型偏向ヨー
クについては、並列に組合わされた複数個の円柱状磁性
体を共通のコアとして、これに水平偏向コイルから発生
する漏洩磁束を減少させるコイルと垂直偏向コイルから
発生する漏洩磁束を減少させるコイルとを各別に巻回す
ればよい。
When the vertical deflection coil is of a toroidal type, it is wound around the core and arranged vertically, so that the leakage flux compensating coil for reducing the leakage flux generated from this toroidal type vertical deflection coil is of the deflection yoke. They are placed one above the other. In this case, for a semi-toroidal deflection yoke in which the horizontal deflection coil is a saddle type and the vertical deflection coil is a toroidal type, a plurality of columnar magnetic bodies combined in parallel are used as a common core, and The coil for reducing the leakage flux generated and the coil for reducing the leakage flux generated from the vertical deflection coil may be separately wound.

【0025】[0025]

【発明の効果】陰極線管にサドル型水平偏向コイルとサ
ドル型またはトロイダル型垂直偏向コイルとを有する偏
向ヨークが装着されてなる陰極線管装置において、偏向
ヨークから発生する漏洩磁束を減少させる漏洩磁束補償
コイルを、偏向ヨークとの間に空間を形成しうる2個以
上の柱状磁性体を組合わせにコイルを巻回した構造とす
ると、従来の漏洩磁束補償コイルにくらべてコアの表面
積の拡大し、漏洩磁束補償コイルの発熱をコアを介して
効果的に放散できるばかりでなく、偏向ヨークとの間に
形成される空間を通る空気の対流により、漏洩磁束補償
コイルの発熱を取去ることができるので、漏洩磁束補償
コイルから発生する熱の影響を防止できる。
In the cathode ray tube device in which the cathode ray tube is equipped with the deflection yoke having the saddle type horizontal deflection coil and the saddle type or toroidal type vertical deflection coil, the leakage flux compensation for reducing the leakage flux generated from the deflection yoke. When the coil has a structure in which two or more columnar magnetic bodies capable of forming a space between the coil and the deflection yoke are combined and the coil is wound, the surface area of the core is increased as compared with the conventional leakage flux compensation coil, Not only can the heat of the leakage flux compensating coil be effectively dissipated via the core, but also the heat of the leakage flux compensating coil can be removed by the convection of the air passing through the space formed with the deflection yoke. The influence of heat generated from the leakage flux compensating coil can be prevented.

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

【図1】この発明の一実施例である陰極線管装置の漏洩
磁束補償コイルの配置された偏向ヨークの構成を示す斜
視図である。
FIG. 1 is a perspective view showing a configuration of a deflection yoke in which a leakage flux compensating coil of a cathode ray tube device according to an embodiment of the present invention is arranged.

【図2】その一実施例である陰極線管装置の構成を示す
図である。
FIG. 2 is a diagram showing a configuration of a cathode ray tube device which is one example thereof.

【図3】その漏洩磁束補償コイルの作用を説明するため
の図である。
FIG. 3 is a diagram for explaining the action of the leakage flux compensating coil.

【図4】従来の偏向ヨークの構成を示す斜視図である。FIG. 4 is a perspective view showing a configuration of a conventional deflection yoke.

【図5】偏向ヨークの水平偏向コイルから発生する水平
偏向磁場の分布を示す図である。
FIG. 5 is a diagram showing a distribution of a horizontal deflection magnetic field generated from a horizontal deflection coil of a deflection yoke.

【図6】従来の漏洩磁束補償コイルの配置された偏向ヨ
ークの構成を示す図である。
FIG. 6 is a diagram showing a configuration of a deflection yoke in which a conventional leakage flux compensation coil is arranged.

【図7】従来の異なる漏洩磁束補償コイルの配置された
偏向ヨークの構成を示す図である。
FIG. 7 is a diagram showing a configuration of a conventional deflection yoke in which different leakage flux compensation coils are arranged.

【符号の説明】[Explanation of symbols]

20…パネル 21…ファンネル 22…蛍光体スクリーン 25B,25G,25R …3電子ビーム 26…電子銃 27…偏向ヨーク 30…水平偏向コイル 31…垂直偏向コイル 32a …水平偏向コイルの蛍光体スクリーン側渡り部 32b …水平偏向コイルの電子銃側渡り部 33a …垂直偏向コイルの蛍光体スクリーン側渡り部 33b …垂直偏向コイルの電子銃側渡り部 34…偏向ヨークのコア 35…漏洩磁束補償コイル 36…磁性体 38…コイル 20 ... Panel 21 ... Funnel 22 ... Phosphor screen 25B, 25G, 25R ... 3 Electron beam 26 ... Electron gun 27 ... Deflection yoke 30 ... Horizontal deflection coil 31 ... Vertical deflection coil 32a ... Crossover of horizontal deflection coil on the phosphor screen side 32b ... Electron gun side crossover of horizontal deflection coil 33a ... Phosphor screen side crossover of vertical deflection coil 33b ... Electron gun side crossover of vertical deflection coil 34 ... Deflection yoke core 35 ... Leakage magnetic flux compensation coil 36 ... Magnetic material 38 ... Coil

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 陰極線管にサドル型水平偏向コイルとサ
ドル型またはトロイダル型垂直偏向コイルとを有する偏
向ヨークが装着されてなる陰極線管装置において、 上記偏向ヨークとの間に空間を形成しうる2個以上の柱
状磁性体の組合わせにコイルが巻回され、このコイルに
上記水平、垂直偏向コイルに流す偏向電流またはこれら
偏向電流に同期した電流を供給すことにより上記偏向ヨ
ークから発生する漏洩磁場を軽減する2極磁場を発生す
る漏洩磁束補償コイルが上記水平、垂直偏向コイルの少
なくとも一方に対応して配置されていることを特徴とす
る陰極線管装置。
1. A cathode ray tube device in which a deflection yoke having a saddle type horizontal deflection coil and a saddle type or toroidal type vertical deflection coil is mounted on a cathode ray tube, and a space can be formed between the deflection yoke and the deflection yoke. A coil is wound around a combination of at least two columnar magnetic bodies, and a deflection magnetic field generated from the deflection yoke by supplying a deflection current flowing in the horizontal and vertical deflection coils or a current synchronized with these deflection currents to the coil. A cathode ray tube device, wherein a leakage magnetic flux compensating coil for generating a two-pole magnetic field for reducing the above is arranged corresponding to at least one of the horizontal and vertical deflection coils.
JP20274291A 1991-08-13 1991-08-13 Cathode ray tube device Pending JPH0549036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20274291A JPH0549036A (en) 1991-08-13 1991-08-13 Cathode ray tube device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20274291A JPH0549036A (en) 1991-08-13 1991-08-13 Cathode ray tube device

Publications (1)

Publication Number Publication Date
JPH0549036A true JPH0549036A (en) 1993-02-26

Family

ID=16462411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20274291A Pending JPH0549036A (en) 1991-08-13 1991-08-13 Cathode ray tube device

Country Status (1)

Country Link
JP (1) JPH0549036A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100274275B1 (en) * 1995-12-07 2001-01-15 가나이 쓰도무 Cathode ray tube display
US6737818B2 (en) 2001-11-22 2004-05-18 Hitachi, Ltd. Deflection yoke and cathode ray tube device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100274275B1 (en) * 1995-12-07 2001-01-15 가나이 쓰도무 Cathode ray tube display
US6737818B2 (en) 2001-11-22 2004-05-18 Hitachi, Ltd. Deflection yoke and cathode ray tube device

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