JPH0963507A - Deflection yoke device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deflecting yoke device which reduces the asymmetry of a magnetic flux due to the difference between the left and the right coils of a small arc-like connection part and reduces convergence errors. SOLUTION: This deflection yoke device is provided with a pair of vertical coils formed of a pair of cores, two longish parts, a large arc-like connection part and a small arc-like connection part in which an electric wire is wound plural times in the shape of a saddle-like contour and a pair of horizontal deflection coils 1 formed of two long parts 5, a large arc-like connection part 6 and a small arc-like connection part 8 in which an electric wire is wound plural times. A first tension adjusting bent part 18 and a second tension adjusting bent part 19 are respectively provided in the vicinity of the part connected to two long part 5 in the winding on the involuted side of the small arc-like connection part 8 of at least one of the vertical deflection coils and the horizontal deflection coils 1.

Description

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

【０００１】[0001]

【産業上の利用分野】本発明はテレビジョン受像機等に
使用される陰極線管に組み合わせる偏向ヨーク装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection yoke device combined with a cathode ray tube used in a television receiver or the like.

【０００２】[0002]

【従来の技術】以下、従来の偏向ヨーク装置について図
を参照しながら説明する。図４は従来の偏向ヨーク装置
の側断面図を示すものである。図４において、１は電線
が複数回巻回され鞍形輪郭形状に形成された一対の水平
偏向コイル、２は水平偏向コイル１と同様に電線が複数
回巻回され鞍形輪郭形状に形成された一対の垂直偏向コ
イル、３は水平偏向コイル１と垂直偏向コイル２の間を
絶縁する絶縁枠、４は垂直偏向コイル２を覆うように配
設されたコアである。2. Description of the Related Art A conventional deflection yoke device will be described below with reference to the drawings. FIG. 4 is a side sectional view of a conventional deflection yoke device. In FIG. 4, reference numeral 1 denotes a pair of horizontal deflection coils in which an electric wire is wound a plurality of times to form a saddle-shaped contour, and reference numeral 2 denotes a saddle-shaped contour formed by winding an electric wire a plurality of times like the horizontal deflection coil 1. A pair of vertical deflection coils 3 is an insulating frame that insulates the horizontal deflection coil 1 and the vertical deflection coil 2 from each other, and a core 4 is provided so as to cover the vertical deflection coil 2.

【０００３】このように構成された偏向ヨーク装置の水
平偏向コイル１の形状について説明する。図５は従来の
偏向ヨーク装置の水平偏向コイルの平面図、図６は従来
の偏向ヨーク装置の水平偏向コイルの正面図を示すもの
である。図５及び図６において、５は水平偏向コイル１
の長手部、６は長手部５の管面側に連結される大弧状連
結部、７ａ，７ｂは長手部５と大弧状連結部６を連結す
る屈曲部、８は長手部５の電子銃側に連結される小弧状
連結部、９ａ，９ｂは長手部５と小弧状連結部８を連結
する屈曲部、１０は偏向ヨーク装置の管軸線である。The shape of the horizontal deflection coil 1 of the deflection yoke device thus configured will be described. FIG. 5 is a plan view of the horizontal deflection coil of the conventional deflection yoke device, and FIG. 6 is a front view of the horizontal deflection coil of the conventional deflection yoke device. 5 and 6, 5 is a horizontal deflection coil 1
, 6 is a large arc connecting portion connected to the tube surface side of the long portion 5, 7a and 7b are bent portions connecting the long portion 5 and the large arc connecting portion 6, and 8 is an electron gun side of the long portion 5. Is a small arc-shaped connecting portion, 9a and 9b are bent portions connecting the long portion 5 and the small arc-shaped connecting portion 8, and 10 is a tube axis of the deflection yoke device.

【０００４】次に、このように構成された偏向ヨーク装
置の水平偏向コイル１の巻回について説明する。通常、
水平偏向コイル１は電線の巻回を鞍形輪郭形状に案内す
る案内溝に沿って形成されるのである。そして、図５及
び図６に示すように、管面側の大弧状連結部６の矢印１
１方向に電線を巻始め屈曲部７ａに導かれると、屈曲部
７ａで案内溝に沿って電線が屈曲されて一方の長手部５
に導かれて長手部５を形成し、そして屈曲部９ａに至る
と案内溝に沿って電線が屈曲され、屈曲された後に小弧
状連結部８を形成し、そして屈曲部９ｂに至ると案内溝
に沿って電線が屈曲されて他方の長手部５に導かれて長
手部５を形成し、そして、屈曲部７ｂに至ると案内溝に
沿って電線が屈曲されて大弧状連結部６に導かれて大弧
状連結部６を形成して、１回の巻回となる。そして、こ
の巻回を順次繰り返して複数回巻回されて水平偏向コイ
ル１が形成されるのである。このような方向に巻回した
巻回方向を正回転巻線とする。そして、この逆の巻回方
向を逆回転巻線とする。Next, the winding of the horizontal deflection coil 1 of the deflection yoke device thus constructed will be described. Normal,
The horizontal deflection coil 1 is formed along a guide groove that guides the winding of the electric wire into a saddle-shaped profile. Then, as shown in FIGS. 5 and 6, the arrow 1 of the large arc-shaped connecting portion 6 on the pipe surface side
When the electric wire is started to be wound in one direction and is guided to the bent portion 7a, the electric wire is bent along the guide groove at the bent portion 7a and one of the longitudinal portions 5
To form the longitudinal portion 5 and to reach the bent portion 9a, the electric wire is bent along the guide groove, and after being bent, the small arc-shaped connecting portion 8 is formed, and when the bent portion 9b is reached, the guide groove is formed. The electric wire is bent along and is guided to the other longitudinal portion 5 to form the longitudinal portion 5, and when reaching the bent portion 7b, the electric wire is bent along the guide groove and guided to the large arc-shaped connecting portion 6. Forming a large arc-shaped connecting portion 6 to form one winding. The horizontal deflection coil 1 is formed by sequentially repeating this winding and winding a plurality of times. The winding direction wound in such a direction is defined as a forward rotation winding. The reverse winding direction is defined as the reverse rotation winding.

【０００５】このように電線の巻回方向を正回転巻線と
して水平偏向コイル１を形成すると、案内溝の狭い個所
から広い個所に電線が巻回され導入される場合には、案
内溝の広くなったところで電線の引っ張られる力（一般
にテンションと呼ぶ）が強くなる。又、案内溝の広い個
所から狭い個所に至る際には逆に電線のテンションが弱
くなるのが一般的である。そして、図５及び図６に示す
水平偏向コイル１においては、巻始めの大弧状連結部６
から一方の長手部５に至る屈曲部７ａでは長手部５の案
内溝が狭くなるので、大弧状連結部６の屈曲部７ａ近傍
の電線のテンションは弱くなり、それに伴って、巻回の
締め付けが弱くなり緩やかに巻回される。続いて一方の
長手部５から小弧状連結部８に至る屈曲部９ａでは小弧
状連結部８の案内溝が広くなるので、小弧状連結部８の
屈曲部９ａ近傍の電線のテンションが強くなり、それに
伴って巻回の締め付けが強く巻回される。そして、小弧
状連結部８から他方の長手部５に至る屈曲部９ｂでは長
手部５の案内溝が狭くなるので、小弧状連結部８の屈曲
部９ｂ近傍の電線のテンションが弱くなり、それに伴っ
て巻回の締め付けが弱くなり緩やかに巻回される。他方
の長手部５から大弧状連結部６に至る屈曲部７ｂでは大
弧状連結部６の案内溝が広くなるので、大弧状連結部６
の屈曲部７ｂ近傍の電線のテンションが強くなり、それ
に伴って巻回の締め付けが強く巻回されているのであ
る。When the horizontal deflection coil 1 is formed by using the winding direction of the electric wire as a positive rotation winding in this way, when the electric wire is wound and introduced from a narrow portion of the guide groove to a wide portion thereof, the guide groove is wide. At that point, the pulling force of the wire (generally called tension) becomes stronger. On the contrary, the tension of the electric wire is generally weakened when the guide groove is extended from a wide portion to a narrow portion. In the horizontal deflection coil 1 shown in FIGS. 5 and 6, the large arc-shaped connecting portion 6 at the beginning of winding.
Since the guide groove of the longitudinal portion 5 is narrowed in the bent portion 7a extending from the one longitudinal portion 5 to the one longitudinal portion 5, the tension of the electric wire in the vicinity of the bent portion 7a of the large arc-shaped connecting portion 6 is weakened, and the tightening of the winding is accordingly accompanied. It becomes weak and is wound gently. Then, in the bent portion 9a extending from the one longitudinal portion 5 to the small arc-shaped connecting portion 8, the guide groove of the small arc-shaped connecting portion 8 is widened, so that the tension of the electric wire in the vicinity of the bent portion 9a of the small arc-shaped connecting portion 8 becomes strong, Along with that, the tightening of the winding is strongly wound. In the bent portion 9b extending from the small arc-shaped connecting portion 8 to the other longitudinal portion 5, the guide groove of the long portion 5 is narrowed, so that the tension of the electric wire in the vicinity of the bent portion 9b of the small arc-shaped connecting portion 8 is weakened. The tightening of the winding becomes weak and it is wound gently. At the bent portion 7b extending from the other longitudinal portion 5 to the large arc-shaped connecting portion 6, the guide groove of the large arc-shaped connecting portion 6 is widened, so that the large arc-shaped connecting portion 6 is formed.
The tension of the electric wire in the vicinity of the bent portion 7b becomes strong, and the tightening of the winding is strongly wound accordingly.

【０００６】次に、逆回転巻線の水平偏向コイルの場合
には、図５に示す水平偏向コイル１が巻始めの大弧状連
結部６から他方の長手部５に至る屈曲部７ｂでは長手部
５の案内溝が狭くなる。そして、大弧状連結部６の屈曲
部７ｂ近傍の電線のテンションは弱くなり、それに伴っ
て、巻回の締め付けが弱くなり緩やかに巻回される。続
いて他方の長手部５から小弧状連結部８に至る屈曲部９
ｂでは小弧状連結部８の案内溝が広くなるので、小弧状
連結部８の屈曲部９ｂ近傍の電線のテンションが強くな
り、それに伴って巻回の締め付けが強く巻回される。そ
して、小弧状連結部８から一方の長手部５に至る屈曲部
９ａでは長手部５の案内溝が狭くなるので、小弧状連結
部８の屈曲部９ａ近傍の電線のテンションが弱くなり、
それに伴って巻回の締め付けが弱くなり緩やかに巻回さ
れる。一方の長手部５から大弧状連結部６に至る屈曲部
７ａでは大弧状連結部６の案内溝が広くなるので、大弧
状連結部６の屈曲部７ａ近傍の電線のテンションが強く
なり、それに伴って巻回の締め付けが強く巻回される。
それに伴って水平偏向コイル１の管軸線１０を中心にし
た大弧状連結部６と小弧状連結部８の形状は、正回転巻
線の場合と比較して管軸線１０を挟んで左右を逆にした
コイル形状となる。Next, in the case of the horizontal deflection coil of the reverse rotation winding, the horizontal deflection coil 1 shown in FIG. 5 has a long portion at the bent portion 7b from the large arc-shaped connecting portion 6 at the beginning of winding to the other long portion 5. The guide groove of 5 becomes narrower. Then, the tension of the electric wire in the vicinity of the bent portion 7b of the large arc-shaped connecting portion 6 is weakened, and accordingly, the tightening of the winding is weakened and the winding is performed gently. Subsequently, the bent portion 9 extending from the other longitudinal portion 5 to the small arc-shaped connecting portion 8
In b, since the guide groove of the small arc-shaped connecting portion 8 becomes wide, the tension of the electric wire in the vicinity of the bent portion 9b of the small arc-shaped connecting portion 8 becomes strong, and the tightening of the winding is strongly wound accordingly. In the bent portion 9a extending from the small arc-shaped connecting portion 8 to the one longitudinal portion 5, the guide groove of the long portion 5 is narrowed, so that the tension of the electric wire in the vicinity of the bent portion 9a of the small arc-shaped connecting portion 8 is weakened,
Along with that, the tightening of the winding is weakened and the winding is performed gently. In the bent portion 7a extending from the one longitudinal portion 5 to the large arc-shaped connecting portion 6, the guide groove of the large arc-shaped connecting portion 6 is widened, so that the tension of the electric wire in the vicinity of the bent portion 7a of the large arc-shaped connecting portion 6 becomes strong, and accordingly The winding is tightly wound.
Along with this, the shapes of the large arc-shaped connecting portion 6 and the small arc-shaped connecting portion 8 with the tube axis 10 of the horizontal deflection coil 1 as the center are reversed from left to right with the tube axis 10 interposed therebetween as compared with the case of the positive rotation winding. It becomes a coil shape.

【０００７】[0007]

【発明が解決しようとする課題】このような上記従来の
偏向ヨーク装置では、本来ならば水平偏向磁界の発生し
た磁力線が上下の垂直方向で横方向に傾きのないものを
発生させるものである。管軸線１０を中心にした大弧状
連結部６と小弧状連結部８の巻回には巻回方向のテンシ
ョンによってそれぞれ左右のコイル形状が非対称にな
る。この大弧状連結部６のコイル形状の左右の非対称が
僅かであって無視できる程度のものであるが、小弧状連
結部８のコイル形状では、正回転巻線の場合には小弧状
連結部８の屈曲部９ａ近傍では電線のテンションが強い
状態で巻回され、又、小弧状連結部８の屈曲部９ｂ近傍
では電線のテンションが弱い状態で巻回されてコイル形
状の左右が非対称に形成されており、この様な左右が非
対称なコイル形状で水平偏向磁界を動作させると、図７
に示すように、発生した磁力線１２が左上がりになり、
左上がりの磁力線１２を電子ビームが受けると、その力
は白抜き矢印１３方向の右上がりに働く。そして、図８
に示すように、陰極線管の画面１４において、Ｘ軸１５
上の周辺部で青色電子ビーム１６の軌跡が上方向の弓状
と、赤色電子ビーム１７の軌跡が下方向の弓状となって
コンバーゼンスエラー（色ずれ）が生じるという問題点
を有していた。In the above-mentioned conventional deflection yoke device, originally, the magnetic field lines generated by the horizontal deflection magnetic field are generated without vertical inclination in the vertical direction in the vertical direction. When the large arc-shaped connecting portion 6 and the small arc-shaped connecting portion 8 are wound around the tube axis 10, the left and right coil shapes are asymmetrical due to the tension in the winding direction. The left-right asymmetry of the coil shape of the large arc-shaped connecting portion 6 is slight and can be ignored, but the coil shape of the small arc-shaped connecting portion 8 has a small arc-shaped connecting portion 8 in the case of a forward rotation winding. In the vicinity of the bent portion 9a of the electric wire, the electric wire is wound with a strong tension, and in the vicinity of the bent portion 9b of the small arc-shaped connecting portion 8, the electric wire is wound with a weak tension so that the left and right sides of the coil are formed asymmetrically. When a horizontal deflection magnetic field is operated with such a coil shape whose left and right are asymmetrical,
As shown in, the generated magnetic field line 12 rises to the left,
When the electron beam receives the line of magnetic force 12 that rises to the left, the force acts upward to the right in the direction of the white arrow 13. And FIG.
On the screen 14 of the cathode ray tube, as shown in FIG.
In the upper peripheral portion, the locus of the blue electron beam 16 becomes an upward bow and the locus of the red electron beam 17 becomes a downward bow, which causes a problem of convergence error (color shift). .

【０００８】本発明は上記従来の問題点を解決するもの
で、小弧状連結部左右のコイル形状の差による磁束の非
対称性を小さくし、コンバーゼンスエラーを減少させた
偏向ヨーク装置を提供することを目的とする。The present invention solves the above-mentioned conventional problems, and provides a deflection yoke device in which the asymmetry of the magnetic flux due to the difference in the coil shapes on the left and right sides of the small arc-shaped connecting portion is reduced and the convergence error is reduced. To aim.

【０００９】[0009]

【課題を解決するための手段】この目的を達成するため
に本発明の偏向ヨーク装置は、一対のコアと、２つの長
手部と大弧状連結部と小弧状連結部から構成される鞍形
輪郭形状に電線が複数回巻回された一対の垂直偏向コイ
ルと、２つの長手部と大弧状連結部と小弧状連結部から
構成される鞍形輪郭形状に電線が複数回巻回された一対
の水平偏向コイルを備え、垂直偏向コイルと水平偏向コ
イルの内の少なくとも一方の小弧状連結部の内巻き側の
巻線には２つの長手部との連結部分近傍にそれぞれ第１
のテンション調整用屈曲部と第２のテンション調整用屈
曲部が設けられている構成を有している。To achieve this object, a deflection yoke device of the present invention comprises a saddle-shaped profile composed of a pair of cores, two longitudinal portions, a large arc-shaped connecting portion and a small arc-shaped connecting portion. A pair of vertical deflection coils in which the electric wire is wound a plurality of times in a shape, and a pair of electric wires in which the electric wire is wound a plurality of times in a saddle-shaped contour shape composed of two longitudinal portions, a large arc connecting portion and a small arc connecting portion. A horizontal deflection coil is provided, and a winding on the inner winding side of at least one of the vertical deflection coil and the horizontal deflection coil is provided with a first coil in the vicinity of the coupling portion with the two longitudinal portions.
The tension adjusting bent portion and the second tension adjusting bent portion are provided.

【００１０】又、本発明の偏向ヨーク装置は、第１のテ
ンション調整用屈曲部が電線入口側に設けられた場合、
長手部の突き合わせ面方向と管軸線において直交する垂
直面からの距離を第２のテンション調整用屈曲部より第
１のテンション調整用屈曲部の方を大きくした構成を有
している。Further, in the deflection yoke device of the present invention, when the first tension adjusting bent portion is provided on the wire inlet side,
The first tension adjusting bent portion has a configuration in which the distance from a vertical surface orthogonal to the abutting surface direction of the longitudinal portion in the tube axis is larger in the first tension adjusting bent portion than in the second tension adjusting bent portion.

【００１１】[0011]

【作用】本発明の偏向ヨーク装置は、小弧状連結部の内
巻き側の巻線には２つの長手部との連結部分近傍にそれ
ぞれ第１のテンション調整用屈曲部と第２のテンション
調整用屈曲部が設けられている構成であるので、小弧状
連結部左右のコイル形状の差による磁束の非対称性を小
さくさせることができる。In the deflection yoke device of the present invention, in the winding on the inner winding side of the small arcuate connecting portion, the first bending portion for tension adjustment and the second bending portion for tension adjustment are provided in the vicinity of the connecting portion between the two longitudinal portions. Since the bent portion is provided, the asymmetry of the magnetic flux due to the difference between the coil shapes on the left and right of the small arc-shaped connecting portion can be reduced.

【００１２】又、本発明の偏向ヨーク装置は、第１のテ
ンション調整用屈曲部が電線入口側に設けられた場合、
長手部の突き合わせ面方向と管軸線において直交する垂
直面からの距離を第２のテンション調整用屈曲部より第
１のテンション調整用屈曲部の方を大きくした構成であ
るので、小弧状連結部左右のコイル形状の差による磁束
の非対称性を小さくさせることができる。Further, in the deflection yoke device of the present invention, when the first tension adjusting bent portion is provided on the wire inlet side,
Since the first tension adjusting bent portion is configured such that the distance from the vertical surface orthogonal to the abutting surface direction of the longitudinal portion in the tube axis is larger than that of the second tension adjusting bent portion, It is possible to reduce the asymmetry of magnetic flux due to the difference in coil shape.

【００１３】[0013]

【実施例】以下、本発明の一実施例おける偏向ヨーク装
置について図面を参照しながら説明する。図１は本発明
の一実施例における偏向ヨーク装置の水平偏向コイルの
斜視図、図２は本発明の一実施例における偏向ヨーク装
置の水平偏向コイルの正面図である。図１及び図２にお
いて従来例と同符号のものは基本的には同一である。図
１及び図２において、１は鞍形輪郭形状に形成された水
平偏向コイルであり、長手部５、管面側の大弧状連結部
６、小弧状連結部８から形成されている。そして、１０
は陰極線管の管軸線である。DESCRIPTION OF THE PREFERRED EMBODIMENTS A deflection yoke device according to an embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view of a horizontal deflection coil of a deflection yoke device according to an embodiment of the present invention, and FIG. 2 is a front view of a horizontal deflection coil of a deflection yoke device according to an embodiment of the present invention. In FIGS. 1 and 2, the same reference numerals as in the conventional example are basically the same. 1 and 2, reference numeral 1 denotes a horizontal deflection coil formed in a saddle-shaped contour shape, and includes a longitudinal portion 5, a large arc-shaped connecting portion 6 on the tube surface side, and a small arc-shaped connecting portion 8. And 10
Is the tube axis of the cathode ray tube.

【００１４】次に、このように構成された偏向ヨーク装
置の水平偏向コイル１の正回転巻線の巻回について、図
２，図３（ａ）及び（ｂ）を用いて説明する。図３
（ａ）及び（ｂ）は本発明の一実施例における偏向ヨー
ク装置の水平偏向コイルの小弧状連結部の巻回を説明す
る図である。図２に示すように、水平偏向コイル１を形
成するときに小弧状連結部８には、長手部５の内側に連
結され屈曲する屈曲部９ａと屈曲部９ｂの上側に対向さ
せた第１のテンション調整用屈曲部１８と第２のテンシ
ョン調整用屈曲部１９が設けられている。そして、小弧
状連結部８の巻回の入口側である屈曲部９ａより外側の
位置に第１のテンション調整用屈曲部１８が設けられて
いるのである。そして、長手部５の突き合わせ面上の管
軸線１０に垂直な垂直線２０に対して第１のテンション
調整用屈曲部１８と第２のテンション調整用屈曲部１９
の位置関係は、対称ではなく電線入口側の長手部５の連
結部近傍に近付けられているのである。Next, the winding of the positive rotation winding of the horizontal deflection coil 1 of the deflection yoke device thus constructed will be described with reference to FIGS. 2, 3 (a) and 3 (b). FIG.
(A) And (b) is a figure explaining winding of the small arc-shaped connection part of the horizontal deflection coil of the deflection yoke device in one example of the present invention. As shown in FIG. 2, when the horizontal deflection coil 1 is formed, the small arc-shaped connecting portion 8 is provided with a first bent portion 9a which is connected to the inner side of the longitudinal portion 5 and is bent to face the upper side of the bending portion 9b. A tension adjusting bent portion 18 and a second tension adjusting bent portion 19 are provided. The first tension adjusting bent portion 18 is provided at a position outside the bent portion 9a on the winding inlet side of the small arc-shaped connecting portion 8. Then, the first tension adjusting bent portion 18 and the second tension adjusting bent portion 19 with respect to the vertical line 20 perpendicular to the tube axis 10 on the abutting surface of the longitudinal portion 5.
The positional relationship is not symmetrical, but is close to the vicinity of the connecting portion of the longitudinal portion 5 on the wire inlet side.

【００１５】このような水平偏向コイル１の巻回では、
大弧状連結部６の矢印１１方向に電線を案内溝に沿って
巻始め屈曲部７ａに至ると、屈曲部７ａで案内溝に沿っ
て電線が屈曲されて一方の長手部５に導かれて長手部５
を形成し、そして屈曲部９ａに至ると案内溝に沿って電
線が屈曲され、さらに第１のテンション調整用屈曲部１
８で屈曲された後に第２のテンション調整用屈曲部１９
で屈曲されて小弧状連結部８を形成し、そして屈曲部９
ｂに至ると案内溝に沿って電線が屈曲されて他方の長手
部５に導かれて長手部５を形成し、そして、屈曲部７ｂ
に至ると案内溝に沿って電線が屈曲されて大弧状連結部
６に導かれて大弧状連結部６を形成して、１回目の巻回
となる。そして、次にこの１回目の巻線の外側に２回目
の巻回を行う。さらに、この巻回を順次繰り返して複数
回巻回し、第１回目の巻線であるコイル最内側巻線、及
び、これに続く複数回の内巻き側の巻線に、長手部５の
連結部分近傍の第１のテンション調整用屈曲部１８と、
第２のテンション調整用屈曲部１９を形成する。この内
巻き側の巻線は外巻き側に向かうに従って屈曲の曲率が
滑らかになり、小弧状連結部８の外巻き側に近づくと屈
曲のほとんど無い水平偏向コイル１が形成されるのであ
る。In the winding of the horizontal deflection coil 1 as described above,
When the electric wire starts winding along the guide groove in the direction of the arrow 11 of the large arc-shaped connecting portion 6 and reaches the bent portion 7a, the electric wire is bent along the guide groove at the bent portion 7a and is guided to one longitudinal portion 5 to be long. Part 5
And the electric wire is bent along the guide groove when reaching the bent portion 9a, and further the first tension adjusting bent portion 1 is formed.
Second bending portion 19 for adjusting tension after being bent at 8
Is bent to form a small arcuate connecting portion 8, and the bent portion 9
When it reaches b, the electric wire is bent along the guide groove and guided to the other longitudinal part 5 to form the longitudinal part 5, and the bent part 7b
Then, the electric wire is bent along the guide groove and guided to the large-arc connecting portion 6 to form the large-arc connecting portion 6, and the first winding is performed. Then, next, the second winding is performed outside the first winding. Further, this winding is sequentially repeated to make a plurality of windings, and the innermost winding of the coil, which is the first winding, and the plurality of inner winding-side windings following the winding are connected to the connecting portion of the longitudinal portion 5. A first tension adjusting bent portion 18 in the vicinity,
The second bending portion 19 for tension adjustment is formed. The winding on the inner winding side has a curved curvature that becomes smoother toward the outer winding side, and when the winding approaches the outer winding side of the small arc-shaped connecting portion 8, the horizontal deflection coil 1 with almost no bending is formed.

【００１６】このように水平偏向コイル１の小弧状連結
部８を形成する際に内巻き側の巻線においては、図３
（ａ）に示すように、一方の長手部５から屈曲部９ａと
第１のテンション調整用屈曲部１８に至る矢印２１方向
に電線が屈曲されて巻回される。その際、屈曲部９ａよ
り外側の長手部５に第１のテンション調整用屈曲部１８
を近付けるように設けているので、屈曲部９ａの屈曲に
対しては、電線が案内溝の狭い個所から広い個所に至る
場合と同様な効果が得られて、屈曲部９ａと第１のテン
ション調整用屈曲部１８の間は電線のテンションが強く
巻き付けられてコイル形状が強く締め付けられる。そし
て、第１のテンション調整用屈曲部１８から第２のテン
ション調整用屈曲部１９に至る間は従来例よりは緩やか
に巻回されたコイル形状となるのである。In forming the small arc-shaped connecting portion 8 of the horizontal deflection coil 1 in this way, in the winding on the inner winding side, as shown in FIG.
As shown in (a), the electric wire is bent and wound in the direction of arrow 21 from one longitudinal portion 5 to the bent portion 9a and the first tension adjusting bent portion 18. At this time, the first tension adjusting bent portion 18 is provided on the longitudinal portion 5 outside the bent portion 9a.
Since it is provided so as to approach the bending portion 9a, the same effect as when the electric wire extends from the narrow portion to the wide portion of the guide groove is obtained for the bending of the bending portion 9a. The tension of the wire is strongly wound between the bending portions 18 and the coil shape is strongly tightened. Then, the coil shape is wound more gently than the conventional example between the first tension adjusting bent portion 18 and the second tension adjusting bent portion 19.

【００１７】又、図３（ｂ）に示すように、第２のテン
ション調整用屈曲部１９と屈曲部９ｂを経て他方の長手
部５に至る矢印２２方向に電線が屈曲されて巻回され
る。その際、第２のテンション調整用屈曲部１９の屈曲
に対しては、巻回される電線が案内溝の広い個所から狭
い個所に至る場合と同様の効果で、電線のテンションが
弱い状態で巻き付けられてコイル形状が緩やかに巻回さ
れる。そして、屈曲部９ｂの屈曲で従来例よりは強く巻
き付けられたコイル形状となるのである。Further, as shown in FIG. 3 (b), the electric wire is bent and wound in the direction of the arrow 22 extending from the second tension adjusting bent portion 19 and the bent portion 9b to the other longitudinal portion 5. . At that time, with respect to the bending of the second tension adjusting bent portion 19, with the same effect as when the wound electric wire reaches from a wide portion of the guide groove to a narrow portion thereof, the electric wire is wound in a weak tension state. The coil shape is gently wound. The bending of the bent portion 9b results in a coil that is wound more tightly than in the conventional example.

【００１８】そして、このように形成された水平偏向コ
イル１の小弧状連結部８のコイル形状は、第１のテンシ
ョン調整用屈曲部１８と第２のテンション調整用屈曲部
１９の位置が垂直線２０に対して対称ではなく、第１の
テンション調整用屈曲部１８の位置を第２のテンション
調整用屈曲部１９の位置に比べて垂直線２０に対してそ
れぞれ長手部５との連結部分にずらせている。即ち、第
１のテンション調整用屈曲部１８が電線入口側に設けら
れた場合、長手部５の突き合わせ面方向と管軸線１０に
おいて直交する垂直面からの距離が第２のテンション調
整用屈曲部１９より第１のテンション調整用屈曲部１８
を大きくしている。従って、小弧状連結部８左右のコイ
ル形状の差による磁界の非対称性が、この連結部側への
シフトによって小さくなり、偏向磁界の対称性を増すこ
とができる。In the coil shape of the small arc-shaped connecting portion 8 of the horizontal deflection coil 1 thus formed, the positions of the first tension adjusting bending portion 18 and the second tension adjusting bending portion 19 are vertical lines. 20. The position of the first bending portion for tension adjustment 18 is not symmetrical with respect to 20, and the position of the first bending portion for tension adjustment 18 is displaced from the position of the second bending portion for tension adjustment 19 with respect to the vertical line 20 in the connecting portion with the longitudinal portion 5, respectively. ing. That is, when the first tension adjusting bent portion 18 is provided on the electric wire inlet side, the distance from the vertical surface orthogonal to the abutting surface direction of the longitudinal portion 5 and the tube axis 10 is the second tension adjusting bent portion 19. First bent portion 18 for adjusting tension
Is increasing. Therefore, the asymmetry of the magnetic field due to the difference between the left and right coil shapes of the small arc-shaped connecting portion 8 is reduced by the shift to the connecting portion side, and the symmetry of the deflection magnetic field can be increased.

【００１９】本実施例においては、水平偏向コイル１の
正回転巻線の巻回について説明したが、逆回転巻線の場
合には、正回転巻線の第１のテンション調整用屈曲部１
８と屈曲部９ａ及び第２のテンション調整用屈曲部１９
と屈曲部９ｂの位置を垂直線２０に対して対称的な位置
にそれぞれを配設する。即ち、逆回転巻線の巻始め側に
第１のテンション調整用屈曲部を設け、この第１のテン
ション調整用屈曲部が第２のテンション調整用屈曲部よ
り長手部との連結部に近付けられていると、第１回目の
巻線であるコイル最内側巻線、及び、これに続く複数回
の内巻き側の巻線に、長手部の連結部分近傍の第１のテ
ンション調整用屈曲部と、第２のテンション調整用屈曲
部を形成する。この内巻き側の巻線は外巻き側に向かう
に従って屈曲の曲率が滑らかになり、小弧状連結部の外
巻き側に近づくと屈曲のほとんど無い水平偏向コイルを
形成することができる。In the present embodiment, the winding of the forward rotation winding of the horizontal deflection coil 1 has been described, but in the case of the reverse rotation winding, the first tension adjusting bending portion 1 of the forward rotation winding is used.
8 and the bent portion 9a and the second tension adjusting bent portion 19
And the bent portions 9b are arranged symmetrically with respect to the vertical line 20. That is, a first tension adjusting bent portion is provided on the winding start side of the reverse rotation winding, and the first tension adjusting bent portion is closer to the connecting portion with the longitudinal portion than the second tension adjusting bent portion. The first innermost winding, which is the first winding, and the windings on the inner winding side that follow the first winding have a first tension adjusting bent portion near the connecting portion of the longitudinal portion. , Forming a second bending portion for tension adjustment. The winding on the inner winding side has a curved curvature that becomes smoother toward the outer winding side, and a horizontal deflection coil with almost no bending can be formed as it approaches the outer winding side of the small arc-shaped connecting portion.

【００２０】このように、小弧状連結部８に第１のテン
ション調整用屈曲部１８と第２のテンション調整用屈曲
部１９の位置を垂直線２０に対してそれぞれをずらせて
いるので、水平偏向コイル１で発生する偏向磁界の磁力
線が上下方向、即ち垂直方向になり、偏向磁界の電子ビ
ームに働く力は横方向、即ち水平方向に偏向される。そ
して、従来例に見られた画面のコンバーゼンスエラーを
減少させ、品質を向上させるものである。In this way, since the positions of the first tension adjusting bent portion 18 and the second tension adjusting bent portion 19 are displaced from the vertical line 20 in the small arc-shaped connecting portion 8, horizontal deflection is performed. The lines of magnetic force of the deflection magnetic field generated in the coil 1 are in the vertical direction, that is, the vertical direction, and the force acting on the electron beam of the deflection magnetic field is deflected in the horizontal direction, that is, the horizontal direction. Then, the convergence error of the screen seen in the conventional example is reduced and the quality is improved.

【００２１】尚、本実施例において水平偏向コイル１の
小弧状連結部８のコイル形状について説明したが、水平
偏向コイル１同士の長手部５を突合わせた突合わせ面に
対して９０度ずらせた２つの長手部と大弧状連結部と小
弧状連結部から構成される鞍形輪郭形状に電線が複数回
巻回された一対の垂直偏向コイル２においても、垂直偏
向コイル２の小弧状連結部のコイル形状を、第１のテン
ション調整用屈曲部と第２のテンション調整用屈曲部の
位置が垂直線に対して対称ではなく、第１のテンション
調整用屈曲部の位置を第２のテンション調整用屈曲部の
位置に比べて垂直線に対してそれぞれ長手部５との連結
部側にずらせて形成すると、垂直偏向コイル２の小弧状
連結部の動作において左右のコイル形状の差がもたらす
磁界の非対称性が小さくなり、偏向磁界の対称性を増す
ことができる。そして、垂直偏向コイル２の発生する偏
向磁界の磁力線が横方向、即ち水平方向になり、偏向磁
界の電子ビームに働く力は上下方向、即ち垂直方向に偏
向させることができる。Although the coil shape of the small arc-shaped connecting portion 8 of the horizontal deflection coil 1 has been described in the present embodiment, the longitudinal portions 5 of the horizontal deflection coils 1 are offset by 90 degrees with respect to the abutting faces. Also in a pair of vertical deflection coils 2 in which electric wires are wound a plurality of times in a saddle-shaped contour shape composed of two longitudinal portions, a large arc-shaped connection portion and a small arc-shaped connection portion, The coil shape is such that the positions of the first tension adjusting bent portion and the second tension adjusting bending portion are not symmetrical with respect to the vertical line, and the position of the first tension adjusting bending portion is set to the second tension adjusting bending portion. If they are formed so as to be shifted toward the connecting portion with the longitudinal portion 5 with respect to the vertical line with respect to the position of the bent portion, the asymmetry of the magnetic field caused by the difference between the left and right coil shapes in the operation of the small arc-shaped connecting portion of the vertical deflection coil 2 Sex It will bloom, it is possible to increase the symmetry of the deflection magnetic field. Then, the magnetic force lines of the deflection magnetic field generated by the vertical deflection coil 2 are in the horizontal direction, that is, the horizontal direction, and the force of the deflection magnetic field acting on the electron beam can be deflected in the vertical direction, that is, the vertical direction.

【００２２】この様な水平偏向コイル１及び垂直偏向コ
イル２においては、それぞれのコンバーゼンスの状態に
応じてそれぞれを単独、或いは２つを組み合わせて用い
ると画面のコンバーゼンスエラーを減少でき、品質を向
上させるものである。In the horizontal deflection coil 1 and the vertical deflection coil 2 as described above, the convergence error of the screen can be reduced and the quality can be improved by using each of them individually or in combination of two according to the state of each convergence. It is a thing.

【００２３】[0023]

【発明の効果】以上のように本発明の偏向ヨーク装置で
は、小弧状連結部の内巻き側の巻線には２つの長手部と
の連結部分近傍にそれぞれ第１のテンション調整用屈曲
部と第２のテンション調整用屈曲部が設けられているの
で、小弧状連結部左右のコイル形状の差がもたらす磁界
の非対称性が小さくなり、偏向磁界の対称性を増すこと
ができコンバーゼンスエラーを減少させることができ
る。As described above, in the deflection yoke device of the present invention, the winding on the inner winding side of the small arc-shaped connecting portion is provided with the first bending portion for tension adjustment in the vicinity of the connecting portion between the two longitudinal portions. Since the second tension adjusting bent portion is provided, the asymmetry of the magnetic field caused by the difference between the coil shapes on the left and right of the small arc-shaped connecting portion is reduced, the symmetry of the deflection magnetic field can be increased, and the convergence error can be reduced. be able to.

【００２４】又、本発明の偏向ヨーク装置は、第１のテ
ンション調整用屈曲部が電線入口側に設けられた場合、
長手部の突き合わせ面方向と管軸線において直交する垂
直面からの距離を第２のテンション調整用屈曲部より第
１のテンション調整用屈曲部の方を大きくしたので、小
弧状連結部が容易に形成され、小弧状連結部左右のコイ
ル形状の差がもたらす磁界の非対称性が小さくなり、対
称性を増すことができコンバーゼンスエラーを減少させ
ることができる。Further, in the deflection yoke device of the present invention, when the first tension adjusting bent portion is provided on the wire inlet side,
Since the distance from the vertical surface orthogonal to the direction of the abutting surface of the longitudinal portion in the tube axis is larger in the first tension adjusting bent portion than in the second tension adjusting bent portion, the small arc-shaped connecting portion is easily formed. As a result, the asymmetry of the magnetic field caused by the difference between the coil shapes on the left and right of the small arc-shaped connecting portion is reduced, the symmetry can be increased, and the convergence error can be reduced.

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

【図１】本発明の一実施例における偏向ヨーク装置の水
平偏向コイルの斜視図FIG. 1 is a perspective view of a horizontal deflection coil of a deflection yoke device according to an embodiment of the present invention.

【図２】本発明の一実施例における偏向ヨーク装置の水
平偏向コイルの正面図FIG. 2 is a front view of a horizontal deflection coil of a deflection yoke device according to an embodiment of the present invention.

【図３】（ａ）及び（ｂ）は本発明の一実施例における
偏向ヨーク装置の水平偏向コイルの小弧状連結部の巻回
を説明する図3A and 3B are views for explaining winding of a small arc-shaped connecting portion of a horizontal deflection coil of a deflection yoke device according to an embodiment of the present invention.

【図４】従来の偏向ヨーク装置の側断面図FIG. 4 is a side sectional view of a conventional deflection yoke device.

【図５】従来の偏向ヨーク装置の水平偏向コイルの平面
図FIG. 5 is a plan view of a horizontal deflection coil of a conventional deflection yoke device.

【図６】従来の偏向ヨーク装置の水平偏向コイルの正面
図FIG. 6 is a front view of a horizontal deflection coil of a conventional deflection yoke device.

【図７】従来の偏向ヨーク装置の水平偏向コイルの偏向
磁界を示す図FIG. 7 is a diagram showing a deflection magnetic field of a horizontal deflection coil of a conventional deflection yoke device.

【図８】従来の偏向ヨーク装置を用いた画面で電子ビー
ムの軌跡のコンバーゼンスエラーを説明する図FIG. 8 is a diagram illustrating a convergence error of an electron beam trajectory on a screen using a conventional deflection yoke device.

【符号の説明】[Explanation of symbols]

１ 水平偏向コイル ２ 垂直偏向コイル ５ 長手部 ６ 大弧状連結部 ７ａ，７ｂ，９ａ，９ｂ 屈曲部 ８ 小弧状連結部 １０ 管軸線 １１，２１，２２ 矢印 １８ 第１のテンション調整用屈曲部 １９ 第２のテンション調整用屈曲部 ２０ 垂直線 1 Horizontal Deflection Coil 2 Vertical Deflection Coil 5 Longitudinal Part 6 Large Arc-Shaped Connection 7a, 7b, 9a, 9b Bent 8 Small Arc-Shaped Connection 10 Tube Axis 11, 11, 22 Arrow 18 First Tension Adjusting Bend 19 2 Tension adjustment bend 20 Vertical line

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】一対のコアと、２つの長手部と大弧状連結
部と小弧状連結部から構成される鞍形輪郭形状に電線が
複数回巻回された一対の垂直偏向コイルと、２つの長手
部と大弧状連結部と小弧状連結部から構成される鞍形輪
郭形状に電線が複数回巻回された一対の水平偏向コイル
を備え、前記垂直偏向コイルと前記水平偏向コイルの内
の少なくとも一方の小弧状連結部の内巻き側の巻線には
２つの長手部との連結部分近傍にそれぞれ第１のテンシ
ョン調整用屈曲部と第２のテンション調整用屈曲部が設
けられていることを特徴とする偏向ヨーク装置。1. A pair of vertical deflection coils having a pair of cores, a pair of vertical deflection coils in which an electric wire is wound a plurality of times in a saddle-shaped contour shape composed of two longitudinal portions, a large arc-shaped connecting portion and a small arc-shaped connecting portion, and two. A pair of horizontal deflection coils in which electric wires are wound a plurality of times in a saddle-shaped contour shape composed of a longitudinal portion, a large arc-shaped connection portion, and a small arc-shaped connection portion, and at least one of the vertical deflection coil and the horizontal deflection coil is provided. The winding on the inner winding side of one of the small arc-shaped connecting portions is provided with a first tension adjusting bending portion and a second tension adjusting bending portion, respectively, in the vicinity of the connecting portion with the two longitudinal portions. Characteristic deflection yoke device. 【請求項２】前記第１のテンション調整用屈曲部が電線
入口側に設けられた場合、前記長手部の突き合わせ面方
向と管軸線において直交する垂直面からの距離を前記第
２のテンション調整用屈曲部より前記第１のテンション
調整用屈曲部の方を大きくしたことを特徴とする請求項
１記載の偏向ヨーク装置。2. When the first tension adjusting bent portion is provided on the electric wire inlet side, the distance from a vertical plane orthogonal to the abutting surface direction of the longitudinal portion in the tube axis is used for the second tension adjusting The deflection yoke device according to claim 1, wherein the first tension adjusting bent portion is larger than the bent portion.