JPH0748360B2 - Deflection yoke - Google Patents
Deflection yokeInfo
- Publication number
- JPH0748360B2 JPH0748360B2 JP2067523A JP6752390A JPH0748360B2 JP H0748360 B2 JPH0748360 B2 JP H0748360B2 JP 2067523 A JP2067523 A JP 2067523A JP 6752390 A JP6752390 A JP 6752390A JP H0748360 B2 JPH0748360 B2 JP H0748360B2
- Authority
- JP
- Japan
- Prior art keywords
- sub
- deflection yoke
- deflection
- coil
- ring core
- 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.)
- Expired - Fee Related
Links
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は３原色の電子ビーム投写管を用いてスクリーン
上にテレビジョン画像を投写するためのプロジェクショ
ン装置に装着される偏向ヨークに関する。The present invention relates to a deflection yoke mounted on a projection device for projecting a television image on a screen using an electron beam projection tube of three primary colors.
（ロ）従来の技術 一般にプロジェクション装置は異なる位置に３本の電子
ビーム投写管を配設し、光学系を利用してスクリーン上
に大画面を得るものであるので、各投写管のラスターの
ずれを完全に補正し、スクリーン上で３原色を一致させ
なくてはならない。このため、プロジェクション装置に
用いられる偏向ヨークは実開昭63−95160号公報に示さ
れる如く主偏向ヨークの他にダイナミックコンバーゼン
ス補正用の副偏向ヨークを備えている。(B) Conventional technology In a projection device, generally, three electron beam projection tubes are arranged at different positions, and a large screen is obtained on the screen by using an optical system. Must be completely corrected and the three primary colors must match on the screen. For this reason, the deflection yoke used in the projection device is provided with a sub-deflection yoke for dynamic convergence correction in addition to the main deflection yoke as shown in Japanese Utility Model Laid-Open No. 63-95160.
第７図は従来の偏向ヨークの側面図を示し、（１）はコ
イルセパレータ（２）にコア（1c）を介して主垂直偏向
コイル（1a）及び主水平偏向コイル（1b）が装着された
主偏向ヨーク、（３）はこのコイルセパレータの後方拡
大部（2a）にネジ止めされる副偏向ヨークであり、リン
グコア（４）に副垂直偏向コイル及び副水平偏向コイル
が装着されている。FIG. 7 shows a side view of a conventional deflection yoke. In (1), a main vertical deflection coil (1a) and a main horizontal deflection coil (1b) are attached to a coil separator (2) via a core (1c). A main deflection yoke (3) is a sub-deflection yoke screwed to the rear enlarged portion (2a) of the coil separator, and a sub-vertical deflection coil and a sub-horizontal deflection coil are mounted on the ring core (4).
上記リングコア（４）は第８図に示す如く内側に４個の
突起（4a）（4a）…を有し、予め、ボビン（５）（５）
（５）（５）に巻回された副垂直及び副水平偏向コイル
を装着するものである。As shown in FIG. 8, the ring core (4) has four protrusions (4a) (4a) on the inner side thereof, and the bobbins (5) (5) are previously formed.
(5) The sub-vertical and sub-horizontal deflection coils wound around (5) are mounted.
しかしながら、上記副偏向ヨークは、ボビンを使用する
ため全体の形状が大型化しコストアップの原因ともなっ
ていた。However, since the sub-deflection yoke uses a bobbin, the overall shape becomes large, which causes a cost increase.
また、上記形状では発生する磁界が極端にバレル磁界と
なるため電子ビームに悪影響を与える欠点もあった。In addition, the above-mentioned shape has a drawback that the generated magnetic field is extremely barrel magnetic field, which adversely affects the electron beam.
（ハ）発明が解決しようとする課題 本発明は上述の点に鑑み為されたものであり、装置が小
型化でき、且つ特性の良好なプロジェクション用の偏向
ヨークを提供するものである。(C) Problems to be Solved by the Invention The present invention has been made in view of the above points, and provides a deflection yoke for projection, which enables downsizing of the device and has excellent characteristics.
（ニ）課題を解決するための手段 本発明の副偏向ヨークは分割面を有さないリングコアに
対して180°対向する一対の副垂直偏向コイル及び180°
対向する一対の副水平偏向コイルが前記リングコアの中
心から互いに直交する方向に夫々トロイダル状に巻回さ
れてなる。(D) Means for Solving the Problem A sub deflection yoke of the present invention is a pair of sub vertical deflection coils and a pair of sub vertical deflection coils which face each other by 180 ° with respect to a ring core having no split surface.
A pair of opposed sub-horizontal deflection coils are wound in a toroidal shape in directions orthogonal to each other from the center of the ring core.
（ホ）作用 上述の手段により副偏向ヨークにより発生する磁界が斉
一となる様作用する。(E) Action The above-mentioned means acts so that the magnetic fields generated by the sub-deflection yoke become uniform.
（へ）実施例 以下、図面に従い本発明の一実施例を説明する。第１図
は本発明の一実施例における偏向ヨークの側面図であ
り、従来例と同一部分には同一符号を付し説明を省略す
る。コイルセパレータ（６）には主偏向ヨーク（１）の
他にその後方拡大部に副偏向ヨーク（７）が装着されて
いる。(H) Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a deflection yoke according to an embodiment of the present invention. The same parts as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted. In addition to the main deflection yoke (1), a sub-deflection yoke (7) is attached to the coil separator (6) at an enlarged rear portion thereof.
この副偏向ヨーク（７）は第２図に示す如く、分割され
ていないフェライト製のリングコア（８）に夫々180°
対向する副垂直偏向コイル（7a）（7a）及び副水平偏向
コイル（7b）（7b）がトロイダル巻きされたものであ
る。そして、前記リングコア（８）はコイルセパレータ
（６）後方拡大部に形成されたフックを有する弾性舌片
（6a）（6a）…により挟持されている。As shown in FIG. 2, the sub-deflection yoke (7) has 180 ° on each undivided ferrite ring core (8).
The sub-vertical deflection coils (7a) (7a) and the sub-horizontal deflection coils (7b) (7b) facing each other are toroidally wound. The ring core (8) is sandwiched by elastic tongues (6a) (6a) having hooks formed on the rearward expanded portion of the coil separator (6).
尚、副偏向ヨーク（７）は主偏向ヨークの水平偏向コイ
ル（1b）との干渉による画像のリンギングを防止するた
め、後方拡大部から５〜8mm離間して配置されている。The sub-deflection yoke (7) is arranged at a distance of 5 to 8 mm from the rear enlarged portion in order to prevent ringing of the image due to interference with the horizontal deflection coil (1b) of the main deflection yoke.
また、（９）はセンタリングマグネット（10）及びヨー
ククランプ（11）を有するカバーであり、コイルセパレ
ータ（６）の後方拡大部に嵌合される。Further, (9) is a cover having a centering magnet (10) and a yoke clamp (11), and is fitted to the rearward enlarged portion of the coil separator (6).
第３図は本発明の他の実施例における偏向ヨークの側面
図を示し、副偏向ヨーク（７）を支持する弾性舌片（12
a）（12a）…の外側には副垂直偏向コイル（7a）（7a）
及び副水平偏向コイル（7b）（7b）のリード線（7c）を
引っ掛けるリブ（12b）が形成されている。またこの弾
性舌片は第４図に示す様に先端部が内方に傾斜してお
り、リングコア（８）外径の寸法公差を吸収する構成と
なっている。FIG. 3 is a side view of a deflection yoke according to another embodiment of the present invention, in which an elastic tongue piece (12) for supporting the sub-deflection yoke (7) is provided.
a) (12a) ... Outside the sub-vertical deflection coils (7a) (7a)
Also, ribs (12b) for hooking the lead wires (7c) of the sub-horizontal deflection coils (7b) (7b) are formed. Further, as shown in FIG. 4, the elastic tongue has a tip end portion which is inclined inward, and absorbs the dimensional tolerance of the outer diameter of the ring core (8).
更に、コイルセパレータ（12）後方拡大部上には第５図
に示す如く、突起（12c）が数ケ所に形成されると共
に、リングコア（８）には対応する切欠き（8a）が数ケ
所に形成されており回転規制を為している。Further, as shown in FIG. 5, protrusions (12c) are formed on the rear enlarged portion of the coil separator (12), and corresponding notches (8a) are formed on the ring core (8) at several places. It is formed and regulates rotation.
更に、リングコア（８）に第６図に示す如く巻線部分
（8b）に段差を設けることにより巻線の乱れを防止して
いる。Further, as shown in FIG. 6, the ring core (8) is provided with a step in the winding portion (8b) to prevent the winding from being disturbed.
（ト）発明の効果 上述の如く本発明に依れば副偏向コイルが分割されない
リングコアにトロイダル状に巻線されているため漏れ磁
界が有効に働き偏向感度が上昇する。(G) Effect of the Invention As described above, according to the present invention, since the sub-deflection coil is wound in a toroidal shape on the ring core which is not divided, the leakage magnetic field effectively works and the deflection sensitivity is increased.
また、リングコアに接合面が無いため磁界乱れのおそれ
が無く、磁界分布は、略斉一に近くなるため電子ビーム
に悪影響を与えることがなくフォーカス特性が向上す
る。Further, since the ring core has no joint surface, there is no fear of magnetic field disturbance, and the magnetic field distribution is substantially uniform, so that the electron beam is not adversely affected and the focus characteristic is improved.
またリングコアの生産上のバラツキによる接合面の不一
致、接合面の欠け、接合面の離間等がなくなるので品質
が向上する。In addition, the quality of the ring core is improved because the joining surfaces do not become inconsistent, the joining surfaces are not chipped, and the joining surfaces are separated from each other due to variations in production.
また、ボビンやコアクランプ等の部品を使用しないでコ
ストダウンが図れる。In addition, the cost can be reduced without using parts such as the bobbin and the core clamp.
第１図は本発明の一実施例における偏向ヨークの側面
図、第２図は副偏向コイルの平面図である。第３図は他
の実施例における偏向ヨークの側面図、第４図は要部断
面図、第５図は要部分解斜視図、第６図はリングコアの
要部斜視図である。 第７図は従来の偏向ヨークの側面図、第８図は従来の副
偏向コイルの平面図である。 （１）…主偏向ヨーク、（２）（６）…コイルセパレー
タ、（３）（７）…副偏向ヨーク、（４）（８）…リン
グコア、（7a）（7a）…副垂直偏向コイル、（7b）（7
b）…副水平偏向コイル。FIG. 1 is a side view of a deflection yoke in one embodiment of the present invention, and FIG. 2 is a plan view of a sub deflection coil. FIG. 3 is a side view of a deflection yoke in another embodiment, FIG. 4 is a sectional view of an essential part, FIG. 5 is an exploded perspective view of an essential part, and FIG. 6 is a perspective view of an essential part of a ring core. FIG. 7 is a side view of a conventional deflection yoke, and FIG. 8 is a plan view of a conventional sub deflection coil. (1) ... Main deflection yoke, (2) (6) ... Coil separator, (3) (7) ... Sub deflection yoke, (4) (8) ... Ring core, (7a) (7a) ... Sub vertical deflection coil, (7b) (7
b)… Sub-horizontal deflection coil.
Claims (1)
及び主水平偏向コイルが装着されたコイルセパレータの
後端側に副偏向ヨークが装着されてなる偏向ヨークにお
いて、 前記副偏向ヨークは分割面を有さないリングコアに対し
て180°対向する一対の副垂直偏向コイル及び180°対向
する一対の副水平偏向コイルが前記リングコアの中心か
ら互いに直交する方向に夫々トロイダル状に巻回され、
且つ各副偏向ヨークは前記コイルセパレータの後端部に
形成された複数の弾性舌片により支持されてなる偏向ヨ
ーク。1. A deflection yoke in which a sub-deflection yoke is attached to a rear end side of a coil separator having a main vertical deflection coil and a main horizontal deflection coil constituting the main deflection yoke, wherein the sub-deflection yoke is a split surface. A pair of sub-vertical deflection coils and a pair of sub-horizontal deflection coils 180 ° facing each other with respect to the ring core not having are wound in a toroidal shape in directions orthogonal to each other from the center of the ring core,
In addition, each sub-deflection yoke is supported by a plurality of elastic tongues formed at the rear end of the coil separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2067523A JPH0748360B2 (en) | 1990-01-30 | 1990-03-16 | Deflection yoke |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1955490 | 1990-01-30 | ||
| JP2-19554 | 1990-01-30 | ||
| JP2067523A JPH0748360B2 (en) | 1990-01-30 | 1990-03-16 | Deflection yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03257742A JPH03257742A (en) | 1991-11-18 |
| JPH0748360B2 true JPH0748360B2 (en) | 1995-05-24 |
Family
ID=26356397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2067523A Expired - Fee Related JPH0748360B2 (en) | 1990-01-30 | 1990-03-16 | Deflection yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0748360B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59310341D1 (en) * | 1992-02-20 | 2003-06-05 | Thomson Brandt Gmbh | Deflection unit for the picture tube in a television receiver |
| DE69408443T2 (en) * | 1994-07-01 | 1998-09-03 | Thomson Tubes & Displays | Electron beam deflection system for cathode ray tubes |
| KR20020018416A (en) * | 2000-09-01 | 2002-03-08 | 전형구 | A Printed Circuit Board Fixing Structure of Deflection Yoke |
| KR20030003524A (en) * | 2001-07-03 | 2003-01-10 | 삼성전기주식회사 | Deflection yoke |
| KR20030073949A (en) * | 2002-03-14 | 2003-09-19 | 삼성전기주식회사 | Deflection yoke |
| KR20030073948A (en) * | 2002-03-14 | 2003-09-19 | 삼성전기주식회사 | Deflection yoke |
| US7098584B2 (en) | 2002-10-09 | 2006-08-29 | Matsushita Electric Industrial Co., Ltd. | Deflection yoke |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS488122U (en) * | 1971-06-10 | 1973-01-29 | ||
| JPS52113720U (en) * | 1976-02-24 | 1977-08-29 | ||
| JPS63198158U (en) * | 1987-06-09 | 1988-12-20 |
-
1990
- 1990-03-16 JP JP2067523A patent/JPH0748360B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03257742A (en) | 1991-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |