JPH03297037A - Deflection yoke - Google Patents
Deflection yokeInfo
- Publication number
- JPH03297037A JPH03297037A JP10007990A JP10007990A JPH03297037A JP H03297037 A JPH03297037 A JP H03297037A JP 10007990 A JP10007990 A JP 10007990A JP 10007990 A JP10007990 A JP 10007990A JP H03297037 A JPH03297037 A JP H03297037A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- groove
- deflection yoke
- support frame
- pair
- 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
- 238000004804 winding Methods 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 230000005855 radiation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、水平偏向磁界による不要輻射を低減させるた
めの補助コイルを備えた偏向ヨークに関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a deflection yoke equipped with an auxiliary coil for reducing unnecessary radiation due to a horizontal deflection magnetic field.
従来の技術
水平偏向磁界による不要輻射を低減させるために、水平
偏向磁界とは逆極性の磁界を発生する１対の補助コイル
を偏向ヨーク本体の径大部の上下に斜設してなる偏向ヨ
ークは特開昭６３−７６２４５号公報等で知られている
。Conventional technology In order to reduce unnecessary radiation caused by the horizontal deflection magnetic field, a deflection yoke consists of a pair of auxiliary coils that generate a magnetic field of opposite polarity to the horizontal deflection magnetic field, diagonally installed above and below the large diameter part of the deflection yoke body. is known from Japanese Patent Application Laid-Open No. 63-76245.
発明が解決しようとする課題
前記補助コイルは比較的大きいコイル支持枠体に巻かれ
たもので、とくに低インダクタンスの水平偏向コイルを
備えた偏向ヨークにおけるターン数は僅かである。この
ため、ターン数の設定に際しては、１タ一ン分を加える
べきか否かを問題にしなければならないケースが少なく
なく、いずれを選択しても切り上げまたは切り下げた小
数点以下のターン数の扱い方により、過大補正または過
小補正になるという課題があった。Problems to be Solved by the Invention The auxiliary coil is wound around a relatively large coil support frame, and the number of turns is small, especially in a deflection yoke with a horizontal deflection coil of low inductance. For this reason, when setting the number of turns, there are many cases where it is necessary to consider whether or not to add one ton, and regardless of which option is selected, how to handle the number of turns rounded up or down to the decimal point. Therefore, there was a problem that over-correction or under-correction occurred.
課題を解決するための手段
本発明によると、前述のような偏向ヨークにおける補助
コイルを、コイル支持枠体の外周縁に沿う凹溝内に巻か
れた径大ループの巻線部分と、前記コイル支持枠体の切
欠部を通じて引き出され同支持枠体の外面に沿って巻か
れた径小ループの巻線部分とから構成する。Means for Solving the Problems According to the present invention, the auxiliary coil in the deflection yoke as described above is comprised of a winding portion of a large-diameter loop wound in a groove along the outer periphery of a coil support frame; It consists of a small-diameter loop winding portion pulled out through a notch in the support frame and wound along the outer surface of the support frame.
作用
このように構成すると、径大ループの１タ一ン分を在来
の１タ一ン分に、そして、径小ループの１タ一ン分を在
来の１タ一ン未満分にそれぞれ相当するものと換算する
とき、コイル支持枠体の切欠部の設置位置を適当ならし
めるだけで、補助コイルの換算ターン数を小数点以下ま
で正確に設定することができる。Effect: With this configuration, 1 tain of the large diameter loop becomes 1 tain of the conventional 1 tain, and 1 tain of the small diameter loop becomes 1 tain of the conventional 1 tain. When converting to an equivalent value, the converted number of turns of the auxiliary coil can be set accurately to the decimal point by simply adjusting the installation position of the notch in the coil support frame.
実施例 つぎに本発明を図面に示した実施例とともに説明する。Example Next, the present invention will be explained along with embodiments shown in the drawings.
第１図および第２図を参照して、偏向ヨーク本体１は１
対のサドル型水平偏向コイル２ａ、２ｂを有するととも
に、図示しない１対のサドル型垂直偏向コイルをフェラ
イト製円筒状の磁気シールド３の内側に有している。４
は水平偏向コイル２ａ、２ｂの径大部側ベントアップ領
域を前面側から一部覆う円環状絶縁カバー、５は水平偏
向コイル２ａ、２ｂの径小部側ベントアップ領域の背面
付近に設けられた装着用絶縁筒体を示す。Referring to FIGS. 1 and 2, the deflection yoke main body 1 is
It has a pair of saddle-shaped horizontal deflection coils 2a and 2b, and a pair of saddle-shaped vertical deflection coils (not shown) inside a cylindrical magnetic shield 3 made of ferrite. 4
5 is an annular insulating cover that partially covers the large-diameter side vent-up area of the horizontal deflection coils 2a and 2b from the front side, and 5 is provided near the back of the small-diameter side vent-up area of the horizontal deflection coils 2a and 2b. The insulating cylinder for attachment is shown.
絶縁カバー４の上下にホルダ６を介して斜設されている
１対のコイル支持枠体７は合成樹脂からなる方形状のも
ので、それぞれに補助コイル８が巻かれている。第３図
および第４図に示すように、コイル支持枠体７はその外
周縁の外面側に１対の切欠部７ａを有し、この切欠部７
ａは外周縁に沿って形成された凹溝７ｂ内に通じている
。補助コイル８は凹溝７ｂ内に巻かれた径大ループの巻
線部分と、１対の切欠部７ａを通じて一旦凹溝７ｂ外へ
出て巻かれた径小ループの巻線部分８ａとからなり、１
対の水平偏向コイル２ａ、２ｂによって生成される水平
偏向磁界とは逆極性の磁界を発生すべく、当該水平偏向
コイルに直列に接続されている。A pair of coil support frames 7 diagonally installed above and below the insulating cover 4 via holders 6 are made of synthetic resin and have a rectangular shape, and an auxiliary coil 8 is wound around each. As shown in FIGS. 3 and 4, the coil support frame 7 has a pair of notches 7a on the outer surface side of its outer periphery.
a communicates with the inside of the groove 7b formed along the outer periphery. The auxiliary coil 8 consists of a large-diameter loop winding portion 8a that is wound inside the groove 7b, and a small-diameter loop winding portion 8a that is wound once exiting the groove 7b through a pair of notches 7a. ,1
It is connected in series to the pair of horizontal deflection coils 2a and 2b to generate a magnetic field of opposite polarity to the horizontal deflection magnetic field generated by the pair of horizontal deflection coils 2a and 2b.
１対の補助コイル８によって生成された磁界は漏洩水平
偏向磁界に作用し、その相殺作用によって不要輻射の発
生を低減させるのであるから、補助コイル８によって生
成される磁界の強さに過不足があると、初期の目的を満
足に達成できない。The magnetic field generated by the pair of auxiliary coils 8 acts on the leakage horizontal deflection magnetic field, and the canceling effect reduces the generation of unnecessary radiation, so there is no need to over or under the strength of the magnetic field generated by the auxiliary coils 8. If so, the initial objective cannot be satisfactorily achieved.
したがって、前述のように補助コイルの換算ターン数を
整数以外の値に設定できることは非常に有意義である。Therefore, it is very meaningful to be able to set the converted number of turns of the auxiliary coil to a value other than an integer as described above.
第５図に示す特性図は低インダクタンスの水平偏向コイ
ルを備えた小型陰極線管用偏向ヨークの事例で、補助コ
イルに要求される最適換算ターン数は３．５となる。そ
して、このターン数を４または３に設定すると補正量に
過不足が生じ、いずれの場合も残留漏洩磁界を満足すべ
き値にまでに低減させることはできない。The characteristic diagram shown in FIG. 5 is an example of a deflection yoke for a small cathode ray tube equipped with a low-inductance horizontal deflection coil, and the optimum number of converted turns required for the auxiliary coil is 3.5. If the number of turns is set to 4 or 3, there will be excess or deficiency in the amount of correction, and in either case the residual leakage magnetic field cannot be reduced to a satisfactory value.
前述の実施例では、１対の凹溝７ｂをコイル支持枠体７
の２短辺の各中程に有せしめたが、第６図に示す実施例
のように２対の凹溝７ｂを２長辺個に有せしめてもよい
。また、第７図に示す実施例のものでは、１対の凹溝７
ｂを１長辺に有せしめるおともに、コイル支持枠体７の
外面上に１対の引っ掛は用突起９を設け、径小ループの
巻線部分８ａがより小さいループをつくれるように構成
している。In the above-mentioned embodiment, the pair of grooves 7b are connected to the coil support frame 7.
Although the grooves 7b are provided in the middle of each of the two short sides, two pairs of grooves 7b may be provided in the two long sides as in the embodiment shown in FIG. Furthermore, in the embodiment shown in FIG.
b on one long side, and a pair of hook projections 9 are provided on the outer surface of the coil support frame 7, so that the winding portion 8a of the small diameter loop can form a smaller loop. ing.
発明の効果
以上のように本発明によると、コイル支持枠体に凹溝を
設けて補助コイルに径小ループの巻線部分を有せしめ、
もって換算ターン数の精度を小数点以下まで高めようと
するものであり、残留漏洩磁界による不要輻射をより完
全に低減せしめることができる。Effects of the Invention As described above, according to the present invention, a concave groove is provided in the coil support frame so that the auxiliary coil has a winding portion with a small diameter loop,
This is intended to improve the accuracy of the converted turn number to below the decimal point, and it is possible to more completely reduce unnecessary radiation due to residual leakage magnetic fields.
第１図は本発明を実施した偏向ヨークの正面図、第２図
は同偏向ヨークの側面図、第３図は同偏向ヨークのコイ
ル支持枠体の斜視図、第４図は同コイル支持枠体に補助
コイルを巻装した状態の斜視図、第５図は補助コイルの
ターン数（巻回数）と残留漏洩磁界との関係を示す特性
図、第６図および第７図はそれぞれ本発明の他の実施例
のコイル支持枠体の平面図である。
１・・・・・・偏向ヨーク本体、２ａ、２ｂ・・・・・
・水平偏向コイル、７・・・・・・コイル支持枠体、７
ａ・・・・・・切欠部、７ｂ・・・・・・凹溝、８・・
・・・・補助コイル。Figure 1 is a front view of a deflection yoke embodying the present invention, Figure 2 is a side view of the deflection yoke, Figure 3 is a perspective view of the coil support frame of the deflection yoke, and Figure 4 is the coil support frame. Fig. 5 is a characteristic diagram showing the relationship between the number of turns (number of turns) of the auxiliary coil and the residual leakage magnetic field, and Figs. It is a top view of the coil support frame of another Example. 1...Deflection yoke body, 2a, 2b...
・Horizontal deflection coil, 7... Coil support frame, 7
a...notch, 7b...concave groove, 8...
...Auxiliary coil.
Claims (1)
平偏向磁界とは逆極性の磁界を発生する１対の補助コイ
ルを、前記偏向ヨーク本体の径大部の上下に斜設してな
る偏向ヨークにおいて、前記補助コイルはコイル支持枠
体の外周縁に沿う凹溝内に巻かれた径大ループの巻線部
分と、前記コイル支持枠体の切欠部を通じて引き出され
同支持枠体の外面に沿って巻かれた径小ループの巻線部
分とからなることを特徴とする偏向ヨーク。A deflection yoke comprising a pair of auxiliary coils that are connected in series to the horizontal deflection coil of the deflection yoke body and generate a magnetic field of opposite polarity to the horizontal deflection magnetic field, and are diagonally installed above and below the large diameter portion of the deflection yoke body. In this case, the auxiliary coil is pulled out through a large-diameter loop winding portion wound in a groove along the outer periphery of the coil support frame and a notch in the coil support frame, and is pulled out along the outer surface of the support frame. A deflection yoke characterized in that it consists of a small diameter loop winding portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10007990A JP2960102B2 (en) | 1990-04-16 | 1990-04-16 | Deflection yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10007990A JP2960102B2 (en) | 1990-04-16 | 1990-04-16 | Deflection yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03297037A true JPH03297037A (en) | 1991-12-27 |
| JP2960102B2 JP2960102B2 (en) | 1999-10-06 |
Family
ID=14264438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10007990A Expired - Fee Related JP2960102B2 (en) | 1990-04-16 | 1990-04-16 | Deflection yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2960102B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5874879A (en) * | 1994-06-17 | 1999-02-23 | Sony Corporation | Leakage flux canceling device |
-
1990
- 1990-04-16 JP JP10007990A patent/JP2960102B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5874879A (en) * | 1994-06-17 | 1999-02-23 | Sony Corporation | Leakage flux canceling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2960102B2 (en) | 1999-10-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |