JPS63241843A - Deflecting yoke - Google Patents
Deflecting yokeInfo
- Publication number
- JPS63241843A JPS63241843A JP7513587A JP7513587A JPS63241843A JP S63241843 A JPS63241843 A JP S63241843A JP 7513587 A JP7513587 A JP 7513587A JP 7513587 A JP7513587 A JP 7513587A JP S63241843 A JPS63241843 A JP S63241843A
- Authority
- JP
- Japan
- Prior art keywords
- vertical
- core
- slots
- coil
- horizontal
- 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.)
- Granted
Links
- 230000035945 sensitivity Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 description 11
- 238000004804 winding Methods 0.000 description 10
- 230000004907 flux Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 108010076282 Factor IX Proteins 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、陰極線管に用いられる偏向ヨークに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a deflection yoke used in a cathode ray tube.
高精細ディスプレイ等に用いられる偏向周波数が高い水
平偏向システムに使用される従来の偏向ヨークは、第５
図（ａ） 、 （ｂ）に示すよ５に偏向ヨークｌの水平
偏向コイル２が鞍形で、垂直偏向コイル３がコア４にト
ロイダル形に巻回されたセミトロイダル形構造のものや
、第６図（ａ）、 （ｂ）Ｋ示すようにコア４の内面に
一定深さのスロツ）４ａを有し、このコア４に水平偏向
コイル２と垂直偏向コイル３がそれぞれ鞍形に巻回され
た鞍形構造のものがある。Conventional deflection yokes used in horizontal deflection systems with high deflection frequencies used in high-definition displays, etc.
As shown in Figures (a) and (b), the horizontal deflection coil 2 of the deflection yoke l is saddle-shaped and the vertical deflection coil 3 is wound around the core 4 in a toroidal shape, such as a semi-toroidal structure, or As shown in Figure 6 (a) and (b) K, the core 4 has a slot 4a of a constant depth on its inner surface, and a horizontal deflection coil 2 and a vertical deflection coil 3 are respectively wound around this core 4 in a saddle shape. Some have a saddle-shaped structure.
ところで、周波数の高い水平偏向磁界７が垂直偏向コイ
ル３を横切ることによって生じる渦電流損とＬＩ”（た
だし、Ｌは水平偏向コイル２のインダクタンス、工は水
平偏向電流）で表現される水平偏向感度については、第
６図のコア４の場合には水平偏向磁界７がコア４のティ
ース４ｂを通る磁路を形成し、垂直偏向コイル３を横切
る磁束密度を小さくできると共Ｋ、空隙の磁路長ｔを短
くできるので第５図の偏向ヨークよフも渦電流損が少々
く、水平偏向感度もよい。しかし、第６図（ｂ）Ｋ示す
ように偏向に寄与しない磁路の磁束７ａＫよシ水平偏向
コイル２のインダクタンスが増大するため、上記空隙の
ａ路長ｔの差はどは水平偏向感度は向上しない。By the way, the eddy current loss caused by the high-frequency horizontal deflection magnetic field 7 crossing the vertical deflection coil 3 and the horizontal deflection sensitivity expressed by LI'' (where L is the inductance of the horizontal deflection coil 2, and H is the horizontal deflection current) In the case of the core 4 in FIG. 6, the horizontal deflection magnetic field 7 forms a magnetic path passing through the teeth 4b of the core 4, and the magnetic flux density across the vertical deflection coil 3 can be reduced. Since the length t can be shortened, the deflection yoke shown in Fig. 5 also has little eddy current loss and good horizontal deflection sensitivity.However, as shown in Fig. 6(b)K, the magnetic flux 7aK of the magnetic path that does not contribute to deflection is Since the inductance of the horizontal deflection coil 2 increases, the horizontal deflection sensitivity does not improve regardless of the difference in the a-path length t of the air gap.
一方、構造的には第６図の偏向ヨーク１の場合、水平偏
向コイル２および垂直偏向コイル３とも、コア４の溝４
ａに埋設するため、第５図の偏向ヨーク１のように水平
偏向コイル２を絶縁物５等で絶縁を施こして先に組立て
、垂直偏向コイル３およびコア４を後から水平偏向コイ
ル２の外周に設けるような簡単な方法で組立てることは
できない。On the other hand, in terms of structure, in the case of the deflection yoke 1 shown in FIG. 6, both the horizontal deflection coil 2 and the vertical deflection coil 3 are
a, the horizontal deflection coil 2 is first insulated with an insulator 5 or the like and assembled like the deflection yoke 1 in FIG. It cannot be assembled using a simple method such as installing it on the outer periphery.
また、第６図に示す偏向ヨークの場合、第７図に示すよ
うな水平偏向コイル２と垂直偏向コイル３が交差するよ
うな巻線分布を形成することができなｈｏ
そこで、従来では上記のよりな対策として例えば％開昭
６１−１９０３２号公報に記載した偏向ヨークがある。Furthermore, in the case of the deflection yoke shown in FIG. 6, it is not possible to form a winding distribution in which the horizontal deflection coil 2 and the vertical deflection coil 3 intersect as shown in FIG. As a further countermeasure, for example, there is a deflection yoke described in Japanese Patent Publication No. 1988-19032.
第８図はこの偏向ヨークの実施例を示すもので、コア４
の内面の垂直軸上に２いて、空隙長ｔｖが水平軸上にお
ける空隙長ｔＨより短かくし、コア内面に複数対のスロ
ッ）４ａおよびティース４ｂを形成し、かつ垂直軸８と
なす角度θが大きい位置はどスロット４ａ、ティース４
ｂの深さを浅くし、スロツ）４ａの底面を略同心円正に
配列し、スロット内に垂直偏向コイル３を埋設すると共
に、水平偏向コイル２をコア４の内側に配設したもので
ある。FIG. 8 shows an embodiment of this deflection yoke, in which the core 4
2 on the vertical axis of the inner surface of the core, the gap length tv is shorter than the gap length tH on the horizontal axis, a plurality of pairs of slots 4a and teeth 4b are formed on the inner surface of the core, and the angle θ with the vertical axis 8 is Larger position is slot 4a, teeth 4
The depth of the slots 4a is made shallow, the bottom surfaces of the slots 4a are arranged in substantially concentric circles, the vertical deflection coil 3 is buried in the slot, and the horizontal deflection coil 2 is arranged inside the core 4.
しかしながら、上記のようなスロット４ａの深さの配列
の場合ｔζは、セルフコンパ−センスの条件である垂直
偏向コイル３によって作られる磁界をパーシル形分布に
することが困難である。なぜならば、垂直偏向コイル３
で磁界をバーレル形分亜を形成するためには第９因に示
すように垂直軸８となす角度が大きい位置のスロツ）４
ａ内に多くのコイルを詰め込む必要がある。しかし実際
には上記のスロット４ａは浅いためにセルフコンバーゼ
ンスの条件を満せないという問題があった。However, in the case of the depth arrangement of the slots 4a as described above, it is difficult to make the magnetic field produced by the vertical deflection coil 3 into a Persil-shaped distribution, which is a condition for self-comparison. Because vertical deflection coil 3
In order to form a barrel-shaped magnetic field with a slot in a position where the angle with the vertical axis 8 is large, as shown in factor 9) 4)
It is necessary to pack many coils into a. However, in reality, the slot 4a is shallow and therefore cannot satisfy the self-convergence condition.
この発明は上記のような問題点を解消するためＫなされ
たもので、渦電流損が少なく、水平偏向感度が良好であ
ると共に組立てが容易で、かつ巻線分布設定の自由度の
大きい偏向ヨークを得ること金目的とする。This invention was developed to solve the above problems, and provides a deflection yoke that has low eddy current loss, good horizontal deflection sensitivity, is easy to assemble, and has a high degree of freedom in setting the winding distribution. The goal is to earn money.
この発明に係る偏向ヨークは、コア内面に複数のスロッ
トおよびティースを形成し、ティース高さをほぼ同一に
し、かつ垂直軸から離れたスロット内径を大きくシ、ス
ロット内に垂直偏向コイルを収納して鞍形に巻回すると
共に、垂直軸から離れたティース内面に七ノぞレータを
介して水平偏向コイルを鞍形に巻回したものである。The deflection yoke according to the present invention has a plurality of slots and teeth formed on the inner surface of the core, the heights of the teeth are made almost the same, the inner diameter of the slots away from the vertical axis is increased, and a vertical deflection coil is housed in the slots. The coil is wound in a saddle shape, and a horizontal deflection coil is wound in a saddle shape on the inner surface of the teeth away from the vertical axis via a seven-slot blade.
この発明においては、上記のように構成したので、水平
偏向に寄与する磁界のみを強め、垂直偏向コイルを横切
るｉ界を弱くする作用が得られ、水平偏向感度の向上と
垂直偏向コイルでの渦電流損を低減できる。In this invention, with the above configuration, it is possible to strengthen only the magnetic field that contributes to horizontal deflection and weaken the i-field that crosses the vertical deflection coil, thereby improving the horizontal deflection sensitivity and reducing the vortex in the vertical deflection coil. Current loss can be reduced.
以下、この発明の一実施例を図について説明する。第１
図はこの発明による偏向ヨークの断面図、第２図は第１
図の■−…線におけるコアの断面図、第３図はコアの斜
視図である。図において、偏向ヨークｌはコア４の内面
の垂直軸８上の空隙長ｔｖを水平軸９上の空隙長ｔＨよ
りも短かくしである。An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a sectional view of the deflection yoke according to the present invention, and FIG.
FIG. 3 is a cross-sectional view of the core taken along the line (■--) in the figure, and FIG. 3 is a perspective view of the core. In the figure, the deflection yoke l is a comb in which the gap length tv on the vertical axis 8 of the inner surface of the core 4 is shorter than the gap length tH on the horizontal axis 9.
コア４内面には複数のスロット４ａとティース４ｂが形
成され、垂直軸８から離れたスロット４ａはその内径を
大きくしてあり、各スロット４ａの高さは全て同一であ
る。なお、コア４は第２図に示すようＫＲｌ−Ｒ１＝Ｒ
４−Ｒｓとなっている。A plurality of slots 4a and teeth 4b are formed on the inner surface of the core 4, and the slots 4a located away from the vertical axis 8 have a larger inner diameter, and the heights of the slots 4a are all the same. In addition, the core 4 is KRl-R1=R as shown in FIG.
4-Rs.
各スロッ）４ａには垂直偏向コイル３が鞍形に巻回され
、垂直軸８から離れたティース４ｂの内面にセパレータ
５を介して水平偏向コイル２が鞍形に巻回されている。A vertical deflection coil 3 is wound in a saddle shape around each slot 4a, and a horizontal deflection coil 2 is wound in a saddle shape on the inner surface of the teeth 4b separated from the vertical shaft 8 with a separator 5 in between.
上記のように構成したこの発明による偏向ヨークは、垂
直軸８上の空隙長ｔｖが水平軸９上の空隙長ＡＨよシ短
かく、水平偏向コイル２がコア４のスロッ）４ａＫ収納
されていないため第５図および第６図に示した従来の偏
向ヨークと比較して水平偏向に寄与する磁界のみを強め
ることができ、水平偏向感度を高めることができる。ま
た、垂直偏向コイル３がコア４のスロッ）４ａ内に収納
されておシ、水平偏向磁界の磁束は生にティース４ｂ全
通シスロット内の垂直偏向コイル３を横切る磁束は少な
いため、第４図に示すように水平偏向磁界７が垂直偏向
コイル３を横切ることＫよって生じる渦電流１０を小さ
くでき、垂直偏向コイル３での渦電流損を低減できる。In the deflection yoke according to the present invention configured as described above, the gap length tv on the vertical axis 8 is shorter than the gap length AH on the horizontal axis 9, and the horizontal deflection coil 2 is not housed in the slot of the core 4. Therefore, compared to the conventional deflection yokes shown in FIGS. 5 and 6, only the magnetic field contributing to horizontal deflection can be strengthened, and the horizontal deflection sensitivity can be increased. In addition, since the vertical deflection coil 3 is housed in the slot 4a of the core 4, the magnetic flux of the horizontal deflection magnetic field is raw, but the magnetic flux that crosses the vertical deflection coil 3 in the slot 4a through the teeth 4b is small. As shown in FIG. 3, the eddy current 10 generated by the horizontal deflection magnetic field 7 crossing the vertical deflection coil 3 can be reduced, and the eddy current loss in the vertical deflection coil 3 can be reduced.
一方、水平偏向コイル２をコア４のスロツ）４ａ内に収
納してないので第６図に示す従来の偏向ヨークと異なシ
組立てが容易であシ、しかも、第７図に示すように水平
偏向コイル２と垂直偏向コイル３とが交差するような巻
線分布を形成することが可能となシ、巻線分布設定の自
由度が大きい。また、第８図に示すようなスロツ）４ａ
の深さ分布の場合には垂直偏向磁界に課せられたセルフ
コンパ−センス条件（パーシル形磁界分布）を満たすの
が困難でめるのに比べてこの発明では垂直偏向コイル３
０巻線分布設定の自由度が大となシセルフコンパーゼン
ス条件を満たすことができる。On the other hand, since the horizontal deflection coil 2 is not housed in the slot 4a of the core 4, it is easy to assemble the deflection yoke, which is different from the conventional deflection yoke shown in FIG. It is possible to form a winding distribution such that the coil 2 and the vertical deflection coil 3 intersect, and there is a large degree of freedom in setting the winding distribution. In addition, slots) 4a as shown in Figure 8
In the case of a depth distribution of
It is possible to satisfy the self-comparison condition with a large degree of freedom in setting the zero winding distribution.
なお、鞍形の垂直偏向コイル３は第１図に示すようにコ
ア４を垂直軸８で分割することで従来と同様に巻回でき
る。Note that the saddle-shaped vertical deflection coil 3 can be wound in the same manner as in the prior art by dividing the core 4 along the vertical axis 8 as shown in FIG.
また、鞍形の水平偏向コイル２については雄金型と雌金
型の間にコイルを巻き込んで通電、加熱して裏作する方
法でもよいが、セパレータ５にコイル係止用の溝を設け
、セパレータに直接春画するいわゆるスリット巻きであ
ってもよい。ざらにスロット４ａのピッチは等ピッチや
不等ピッチのいずれの場合でもよい。The saddle-shaped horizontal deflection coil 2 may be manufactured by winding the coil between a male mold and a female mold, energizing it, and heating it. It is also possible to use so-called slit wrapping, in which shunga is applied directly to the paper. Roughly speaking, the pitch of the slots 4a may be either equal pitch or uneven pitch.
以上説明したようにこの発明によれは、コア内面の空隙
長を水平軸上に対して垂直軸上の方を短かくし、コア内
面のスロットに垂直偏向コイルのみを埋設することＫよ
）、水平偏向に寄与する磁界だけを強め、垂直偏向コイ
ルを横切る磁界を弱くする作用によって水平偏向感度の
向上と、垂直偏向コイルでの渦電流損を低減できる。ま
た、水平偏向コイルをコアと分離してコア内側のティー
ス面にセノぐレータを介して設けたことで、偏向ヨーク
の組立てが容易で偏向コイルの巻線分布設定の自由度が
大きくなる上、スロット深さをセル７コンパーゼンス条
件を満たすぺぐ垂直軸から離れた部分においても十分確
保したので垂直偏向コイルの巻線分布の自由度の大きい
偏向ヨークとなる。As explained above, according to the present invention, the gap length on the inner surface of the core is made shorter on the vertical axis than on the horizontal axis, and only the vertical deflection coil is buried in the slot on the inner surface of the core. By strengthening only the magnetic field that contributes to deflection and weakening the magnetic field that crosses the vertical deflection coil, horizontal deflection sensitivity can be improved and eddy current loss in the vertical deflection coil can be reduced. In addition, by separating the horizontal deflection coil from the core and installing it on the teeth surface inside the core via a cenogrator, it is easy to assemble the deflection yoke, and the degree of freedom in setting the winding distribution of the deflection coil is increased. Since the slot depth is ensured to be sufficient even in the portion away from the vertical axis of the peg that satisfies the cell 7 coherence condition, the deflection yoke has a high degree of freedom in the winding distribution of the vertical deflection coil.
第１図はこの発明の一実施例による偏向ヨークの断面図
、第２図は第１図の■−■線におけるコアの断面図、第
３図はコアの斜視図、第４図は渦電流を説明するための
垂直偏向コイルと水平偏向磁界の概略図、第５図（ａＬ
（ｂ）は従来のセミトロイダル形偏向ヨークの斜視図と
断面図、第６図（ａ〕。
（ｂ）は鞍形偏向ヨークの斜視図と断面図、第７図は偏
向コイルの巻線分布図、第８図は従来の他のセミトロイ
ダル形偏向ヨークの断面図、第９図はセル７コンパーゼ
ンス条件を満たすだめの巻線分布図である。
１・・・偏向ヨーク、２・・・水平偏向コイル、３・・
・垂直偏向コイル、４・・・コア、４ａ・・・スロット
、４ｂ・・・ティース、５・・・セパレータ、８・・・
垂直軸、９・・・水平軸。
なお、図中同一符号は同−又は相当部分を示す。Fig. 1 is a sectional view of a deflection yoke according to an embodiment of the present invention, Fig. 2 is a sectional view of the core taken along the line ■-■ in Fig. 1, Fig. 3 is a perspective view of the core, and Fig. 4 is an eddy current A schematic diagram of the vertical deflection coil and the horizontal deflection magnetic field to explain the
(b) is a perspective view and a sectional view of a conventional semi-toroidal deflection yoke, and FIG. 6(a) is a perspective view and a sectional view of a saddle-shaped deflection yoke. FIG. 7 is a deflection coil winding distribution. 8 is a cross-sectional view of another conventional semi-toroidal deflection yoke, and FIG. 9 is a winding distribution diagram that satisfies the cell 7 coherence condition. 1...Deflection yoke, 2...Horizontal Deflection coil, 3...
・Vertical deflection coil, 4... Core, 4a... Slot, 4b... Teeth, 5... Separator, 8...
Vertical axis, 9...Horizontal axis. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
ア内面に複数のスロツトおよびテイースを形成し、テイ
ース高さを略同一高さにし、かつヨークの垂直軸から離
れた部分のスロツトはその内径を大きくしてあり、上記
各スロツト内に垂直偏向コイルを鞍形に巻回し、上記垂
直軸から離れたスロツト側のテイース面にセパレータを
介して水平偏向コイルを鞍形に巻回したことを特徴とす
る偏向ヨーク。This is a deflection yoke used in cathode ray tubes, in which multiple slots and teeth are formed on the inner surface of the core of the yoke, the heights of the teeth are approximately the same, and the slots in the portions away from the vertical axis of the yoke have an inner diameter of A vertical deflection coil is wound in a saddle shape in each of the slots, and a horizontal deflection coil is wound in a saddle shape on the tooth surface on the slot side away from the vertical axis with a separator interposed therebetween. deflection yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7513587A JPS63241843A (en) | 1987-03-27 | 1987-03-27 | Deflecting yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7513587A JPS63241843A (en) | 1987-03-27 | 1987-03-27 | Deflecting yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63241843A true JPS63241843A (en) | 1988-10-07 |
| JPH0588496B2 JPH0588496B2 (en) | 1993-12-22 |
Family
ID=13567445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7513587A Granted JPS63241843A (en) | 1987-03-27 | 1987-03-27 | Deflecting yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63241843A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6087767A (en) * | 1997-06-20 | 2000-07-11 | Kabushiki Kaisha Toshiba | CRT with non-circular cone and yoke |
| WO2002075770A3 (en) * | 2001-03-16 | 2003-10-02 | Koninkl Philips Electronics Nv | Deflection yoke |
| US7274135B2 (en) | 2004-01-23 | 2007-09-25 | Matsushita Toshiba Picture Display Co., Ltd. | Color picture tube apparatus with particular deflection yoke structure |
-
1987
- 1987-03-27 JP JP7513587A patent/JPS63241843A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6087767A (en) * | 1997-06-20 | 2000-07-11 | Kabushiki Kaisha Toshiba | CRT with non-circular cone and yoke |
| WO2002075770A3 (en) * | 2001-03-16 | 2003-10-02 | Koninkl Philips Electronics Nv | Deflection yoke |
| US7274135B2 (en) | 2004-01-23 | 2007-09-25 | Matsushita Toshiba Picture Display Co., Ltd. | Color picture tube apparatus with particular deflection yoke structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0588496B2 (en) | 1993-12-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |