JPH0427659B2 - - Google Patents
Info
- Publication number
- JPH0427659B2 JPH0427659B2 JP13903284A JP13903284A JPH0427659B2 JP H0427659 B2 JPH0427659 B2 JP H0427659B2 JP 13903284 A JP13903284 A JP 13903284A JP 13903284 A JP13903284 A JP 13903284A JP H0427659 B2 JPH0427659 B2 JP H0427659B2
- Authority
- JP
- Japan
- Prior art keywords
- deflection
- core
- deflection coil
- horizontal
- vertical
- 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
Links
- 230000035945 sensitivity Effects 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 230000004907 flux Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012212 insulator Substances 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
- H01J29/76—Deflecting by magnetic fields only
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、陰極線管用の偏向ヨークに関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a deflection yoke for a cathode ray tube.
高精細デイスプレイなど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
向ヨークでは、第１図ａおよびｂに示すように偏
向ヨーク１の水平偏向コイル２がサドル形で、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と、第２図ａお
よびｂに示すようにコア４の内面に一定深さの溝
４ａを有するコア（以下スロツトコアいう）４
に、水平偏向コイル２と垂直偏向コイル３がそれ
ぞれサドル形に巻回されたサドル・サドル形構造
のものなどがある。周波数の高い水平偏向磁界７
が垂直偏向コイル３を横切ることによつて生じる
うず電流損とLI2（Ｌ：水平偏向コイルのインダク
タンス、Ｉ：水平偏向電流）で表現される水平偏
向感度については、第２図のスロツトコアの場合
には、水平偏向磁界７ｂがコアの突起部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ともにエアギヤツプの磁路
長ｌを短くできるので、第１図の偏向ヨークより
もうず電流損が少なく水平偏向感度も良い。しか
し、第２図ｂに示すように、偏向に寄与しない磁
路の磁束７ａにより水平偏向コイル２のインダク
タンスが増大するため、上記エアギヤツプの磁路
長ｌの差ほどは水平偏向感度は向上しない。
In a conventional deflection yoke used in a horizontal deflection system with a high deflection frequency used for high-definition displays, etc., the horizontal deflection coil 2 of the deflection yoke 1 is saddle-shaped, and the vertical deflection coil is The core 4 has a semi-toroidal structure in which the core 3 is wound in a toroidal shape around the core 4, and the core 4 has a groove 4a of a constant depth on the inner surface of the core 4 as shown in FIGS. 2a and 2b.
Another example is a saddle-saddle structure in which a horizontal deflection coil 2 and a vertical deflection coil 3 are each wound in a saddle shape. High frequency horizontal deflection magnetic field 7
The eddy current loss caused by the horizontal deflection coil 3 crossing the vertical deflection coil 3 and the horizontal deflection sensitivity expressed by LI 2 (L: inductance of the horizontal deflection coil, I: horizontal deflection current) are as follows for the slot core shown in Fig. 2. In this case, the horizontal deflection magnetic field 7b forms a magnetic path passing through the protrusion 4b of the core, making it possible to reduce the magnetic flux density across the vertical deflection coil 3 and to shorten the magnetic path length l of the air gap. It has less eddy current loss and better horizontal deflection sensitivity. However, as shown in FIG. 2b, the inductance of the horizontal deflection coil 2 increases due to the magnetic flux 7a of the magnetic path that does not contribute to deflection, so the horizontal deflection sensitivity does not improve as much as the difference in the magnetic path length l of the air gap.
一方、構造面では第２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４ａに埋設するため、第１図に示す
偏向ヨーク１のように、水平偏向コイル２を絶縁
物（セパレータ）等５で絶縁を施して先に組み立
て、垂直偏向コイル３およびコア４をあとから水
平偏向コイル２の外周に設けるような簡便な方法
で組み立てることができない。さらには、第２図
に示す偏向ヨークの場合、第３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い。 On the other hand, in terms of structure, in the case of the deflection yoke 1 shown in FIG. 2, both the horizontal deflection coil 2 and the vertical deflection coil 3 are buried in the groove 4a of the core 4. It is not possible to assemble the horizontal deflection coil 2 by a simple method such as first insulating the deflection coil 2 with an insulator (separator) 5 and then assembling the vertical deflection coil 3 and the core 4 on the outer periphery of the horizontal deflection coil 2. Furthermore, in the case of the deflection yoke shown in FIG. 2, 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. 3.
本発明は、上述の如き従来技術の欠点を除去す
るためになされたものであり、本発明の目的は、
うず電流損が少なく、水平偏向感度が良好で、組
み立てが容易であり、かつ巻線分布設定の自由度
の大きい偏向ヨークを提供することにある。
The present invention has been made to eliminate the drawbacks of the prior art as described above, and the purpose of the present invention is to:
It is an object of the present invention to provide 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 winding distribution.
上記目的達成のために、本発明は偏向ヨークの
コア内面のエアギヤツプ長を垂直軸上では水平軸
上より短くするとともに、コア内面には、複数対
の溝及び突起部が形成され、上記溝の底面はほぼ
同心円上に配列され、垂直軸と成す角度が大きい
位置の溝ほど上記溝の深さが浅く形成され、この
溝には垂直偏向コイルが埋設され、水平偏向コイ
ルがコアの突起部より内側に配置される。
To achieve the above object, the present invention makes the air gap length on the inner surface of the core of the deflection yoke shorter on the vertical axis than on the horizontal axis, and a plurality of pairs of grooves and protrusions are formed on the inner surface of the core, and The bottom surface is arranged almost concentrically, and the grooves at the positions where the angle with the vertical axis is larger are shallower, and the vertical deflection coils are buried in these grooves, and the horizontal deflection coils are located closer to the protrusions of the core. placed inside.
次に図を参照して本発明の実施例を説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第４図、第５図は本発明の第１の実施例を示す
斜視図及び断面図である。同図に示す偏向ヨーク
ではコア内面の垂直軸８上のエアギヤツプ長lvを
水平軸９上のエアギヤツプ長lHより短くしてあ
る。そして第６図に示されるようにコア４の内面
には複数対の溝４ａ及び突起部４ｂが設けられ、
垂直軸８に対する角度θの大きい位置の溝ほど溝
の深さが浅く形成されて、溝４ａの底部４ｃをほ
ぼ同心円上に配置する。そして上記溝４ａには垂
直偏向コイル３だけがトロイダル状に巻回されて
いて、水平偏向コイル２はコア４の内側にセパレ
ータ５を介して設けられている。 FIGS. 4 and 5 are a perspective view and a sectional view showing a first embodiment of the present invention. In the deflection yoke shown in the figure, the air gap length lv on the vertical axis 8 on the inner surface of the core is made shorter than the air gap length lH on the horizontal axis 9. As shown in FIG. 6, a plurality of pairs of grooves 4a and protrusions 4b are provided on the inner surface of the core 4.
The grooves at positions where the angle θ with respect to the vertical axis 8 is larger are shallower, and the bottoms 4c of the grooves 4a are arranged substantially concentrically. Only the vertical deflection coil 3 is wound in a toroidal manner in the groove 4a, and the horizontal deflection coil 2 is provided inside the core 4 with a separator 5 in between.
本発明の偏向ヨーク１では、垂直軸上のエアギ
ヤツプ長lvが短く、かつ水平偏向コイル２がコア
４の溝４ａに収納されていないため、第１図およ
び第２図に示す従来の偏向ヨークと比較して水平
偏向に寄与する磁界だけを強めることができ、水
平偏向感度を向上できる。また、第２図に示す従
来偏向ヨークと同様垂直偏向コイル３がコア４の
溝４ａに収納されていて、水平偏向磁界７の磁束
は主に突起部４ｂを通り、溝内の垂直偏向コイル
３を横切る磁束は少ないため、第８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
とによつて生じるうず電流１０を小さくでき、垂
直偏向コイル３でのうず電流損を第１図に示す偏
向ヨークよりも低減できる。一方、本発明では水
平偏向コイル２をコア４の溝４ａに収納していな
いので、第２図に示す従来の偏向ヨークと異なり
組み立てが容易であり、第３図に示すような水平
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可能であり、巻線分布設定の
自由度が大きい。なお、本発明にかかわるトロイ
ダル形の垂直偏向コイル３は、第７図に示すよう
にコア４を水平軸９上で分割することにより、従
来同様容易に巻回できる。 In the deflection yoke 1 of the present invention, the air gap length lv on the vertical axis is short and the horizontal deflection coil 2 is not housed in the groove 4a of the core 4. Compared to this, only the magnetic field that contributes to horizontal deflection can be strengthened, and horizontal deflection sensitivity can be improved. Further, like the conventional deflection yoke shown in FIG. 2, the vertical deflection coil 3 is housed in the groove 4a of the core 4, and the magnetic flux of the horizontal deflection magnetic field 7 mainly passes through the protrusion 4b, and the vertical deflection coil 3 in the groove Since the magnetic flux crossing the vertical deflection coil 3 is small, the eddy current 10 generated when the horizontal deflection magnetic field 7 crosses the vertical deflection coil 3 can be reduced as shown in FIG. This can be reduced compared to the deflection yoke shown in . On the other hand, in the present invention, since the horizontal deflection coil 2 is not housed in the groove 4a of the core 4, it is easy to assemble unlike the conventional deflection yoke shown in FIG. It is possible to form a winding distribution in which the vertical deflection coil 3 intersects with the vertical deflection coil 3, and there is a high degree of freedom in setting the winding distribution. The toroidal vertical deflection coil 3 according to the present invention can be easily wound as in the conventional method by dividing the core 4 on the horizontal axis 9 as shown in FIG.
第９図は本発明の第２の実施例を示す偏向ヨー
クのとくに垂直偏向コイルの正面図である。同図
に示すように垂直偏向コイル３はサドル形で形成
しても良い。 FIG. 9 is a front view of a deflection yoke, particularly a vertical deflection coil, showing a second embodiment of the present invention. As shown in the figure, the vertical deflection coil 3 may be formed in a saddle shape.
本発明の偏向ヨークは上記のように構成したも
ので、コア内面のエアギヤツプ長を垂直軸上では
水平軸上より短くし、コア内面に設けた溝に垂直
偏向コイルだけを埋設することにより、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り、水平偏向感度の
向上と垂直偏向コイルでのうず電流損を低減する
とともに、水平偏向コイルをコアと分離してコア
の内側に設けるため、組み立てが容易で偏向コイ
ルの巻線分布設定の自由度の大きい偏向ヨークを
得ることができる。
The deflection yoke of the present invention is constructed as described above, and the length of the air gap 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 groove provided 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, it is possible to improve horizontal deflection sensitivity and reduce eddy current loss in the vertical deflection coil, and to separate the horizontal deflection coil from the core. Since the deflection yoke is provided inside the deflection yoke, it is possible to obtain a deflection yoke that is easy to assemble and has a high degree of freedom in setting the winding distribution of the deflection coil.
第１図ａおよび第１図ｂは従来のセミトロイダ
ル形偏向ヨークを示す図で、第１図ａは斜視図、
第１図ｂは断面図、第２図ａおよび第２図ｂは従
来のサドル・サドル形偏向ヨークを示す図で、第
２図ａは斜視図、第２図ｂは断面図、第３図は偏
向コイルの巻線分布を示す正面図、第４図は本発
明によるセミトロイダル形偏向ヨークの一実施例
を示す斜視図、第５図は第４図の偏向ヨークの断
面図、第６図は第４図のコアの斜視図、第７図は
第４図に示す垂直偏向コイルの半体を示す正面
図、第８図はうず電流を説明する要部斜視図、第
９図は本発明の他の実施例にかかわるサドル形垂
直偏向コイルの正面図である。
符号の説明、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……コア内面の溝、４ｂ……コア内面の突起
部、４ｃ……コアの溝の底面、５……セパレー
タ、６……クリツプ、７，７ａ……水平偏向磁
界、８……垂直軸、９……水平軸、１０……うず
電流。
1a and 1b are views showing a conventional semi-toroidal deflection yoke, and FIG. 1a is a perspective view;
Figure 1b is a sectional view, Figures 2a and 2b are views showing a conventional saddle-saddle type deflection yoke, Figure 2a is a perspective view, Figure 2b is a sectional view, and Figure 3 4 is a perspective view showing an embodiment of the semi-toroidal deflection yoke according to the present invention, FIG. 5 is a sectional view of the deflection yoke shown in FIG. 4, and FIG. 6 is a front view showing the winding distribution of the deflection coil. is a perspective view of the core shown in FIG. 4, FIG. 7 is a front view showing a half of the vertical deflection coil shown in FIG. 4, FIG. 8 is a perspective view of a main part explaining eddy current, and FIG. FIG. 6 is a front view of a saddle-shaped vertical deflection coil according to another embodiment of the present invention. Explanation of symbols: 1...Deflection yoke, 2...Horizontal deflection coil, 3...Vertical deflection coil, 4...Core,
4a...Groove on the inner surface of the core, 4b...Protrusion on the inner surface of the core, 4c...Bottom surface of the core groove, 5...Separator, 6...Clip, 7, 7a...Horizontal deflection magnetic field, 8...Vertical axis , 9... horizontal axis, 10... eddy current.
Claims (1)
において、偏向ヨークに使用されるコアは、その
内面が垂直軸上におけるエアギヤツプ長が、水平
軸上におけるエアギヤツプ長より短く形成される
とともに、コア内面には複数対の溝及び突起部が
形成され、該溝の底面はほぼ同心円上に配列さ
れ、かつ垂直軸と成す角度が大きい位置の溝ほど
該溝の深さが浅く形成され、この溝には垂直偏向
コイルが埋設されるとともに、水平偏向コイルが
コアの突起部より内側に配置されていることを特
徴とする偏向ヨーク。1. In a deflection yoke that is attached to a cathode ray tube, the core used in the deflection yoke has an air gap length on the vertical axis shorter than that on the horizontal axis, and A plurality of pairs of grooves and protrusions are formed, the bottom surfaces of the grooves are arranged approximately concentrically, and the depth of the grooves is shallower as the angle between the grooves and the vertical axis is larger. A deflection yoke characterized in that a deflection coil is embedded and a horizontal deflection coil is arranged inside a protrusion of the core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13903284A JPS6119032A (en) | 1984-07-06 | 1984-07-06 | Deflection yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13903284A JPS6119032A (en) | 1984-07-06 | 1984-07-06 | Deflection yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6119032A JPS6119032A (en) | 1986-01-27 |
| JPH0427659B2 true JPH0427659B2 (en) | 1992-05-12 |
Family
ID=15235869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13903284A Granted JPS6119032A (en) | 1984-07-06 | 1984-07-06 | Deflection yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6119032A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63200855U (en) * | 1987-06-15 | 1988-12-23 | ||
| WO1993013462A1 (en) * | 1991-12-27 | 1993-07-08 | Fuji Photo Film Co., Ltd. | Method of forming electrophotographic transfer images |
| JP2575388Y2 (en) * | 1992-09-28 | 1998-06-25 | 株式会社村田製作所 | Coil body for coil for deflection yoke |
| JP3403005B2 (en) * | 1997-06-20 | 2003-05-06 | 株式会社東芝 | Cathode ray tube device |
| JP3410441B2 (en) * | 2000-03-06 | 2003-05-26 | 日本ビクター株式会社 | Deflection yoke |
-
1984
- 1984-07-06 JP JP13903284A patent/JPS6119032A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6119032A (en) | 1986-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0427659B2 (en) | ||
| US4470029A (en) | Convergence unit for in-line color cathode ray tube | |
| JPH0588496B2 (en) | ||
| US5281938A (en) | Deflection system | |
| JPS5920955A (en) | Deflecting yoke | |
| JPH0727550Y2 (en) | Deflection yoke | |
| JPH0572694B2 (en) | ||
| JPH0121474Y2 (en) | ||
| JP3613879B2 (en) | Deflection yoke device | |
| KR200258820Y1 (en) | Coil separator structure of deflection yoke | |
| JP3041889B2 (en) | Deflection yoke | |
| JPH0139385Y2 (en) | ||
| JPS61168843A (en) | Deflection yoke | |
| JPH0448621Y2 (en) | ||
| JPS5812363Y2 (en) | deflection yoke | |
| JP3326348B2 (en) | Deflection yoke | |
| JPH0121478Y2 (en) | ||
| JPH044688B2 (en) | ||
| JPS634053U (en) | ||
| JPH0316733B2 (en) | ||
| JPH0473843A (en) | Deflection yoke | |
| JPH10208948A (en) | Winding structure of high-voltage transformer | |
| JPS58100342A (en) | Deflecting device | |
| JPS62237649A (en) | Deflecting yoke device | |
| JPS63168939A (en) | Deflecting yoke |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |