JPH053103B2 - - Google Patents
Info
- Publication number
- JPH053103B2 JPH053103B2 JP31219786A JP31219786A JPH053103B2 JP H053103 B2 JPH053103 B2 JP H053103B2 JP 31219786 A JP31219786 A JP 31219786A JP 31219786 A JP31219786 A JP 31219786A JP H053103 B2 JPH053103 B2 JP H053103B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- horizontal
- deflection yoke
- deflection
- 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 - Lifetime
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 3
- 229910000889 permalloy Inorganic materials 0.000 description 6
- 229910000859 α-Fe Inorganic materials 0.000 description 6
- 239000000696 magnetic material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Description
【発明の詳細な説明】
産業上の利用分野
本発明は小形ビデオカメラの電子ビユーフアイ
ンダーに用いる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 used in an electronic viewfinder of a small video camera.
従来の技術
従来の一般的な偏向ヨークは第３図の断面構造
図に示すように構成されている。第３図におい
て、１１は粘着層を有する銅線にて鞍形に巻線成
形された水平コイル。１２は垂直コイルであり、
円筒状フエライトコア１３にトロイダル巻されて
いる。それに対し、最近の小形ビデオカメラの電
子ビユーフアインダーには、第４図に示すように
偏向ヨークが使用されている。第４図において水
平コイル２１、垂直コイル２２共、粘着層を有す
る銅線にて穴あき板状に巻線された後、半円筒状
にプレス成形されている。その外周上にパーマロ
イ製の外装シールド板２３を装着し、フエライト
コアの替りに偏向効率を上げている。そのため、
従来の円筒状フエライトコアを使用した偏向ヨー
クに比べ、コンパクトかつ軽量化されている。2. Description of the Related Art A conventional general deflection yoke is constructed as shown in the cross-sectional structural diagram of FIG. In FIG. 3, reference numeral 11 denotes a horizontal coil wound into a saddle shape using copper wire having an adhesive layer. 12 is a vertical coil;
It is toroidally wound around a cylindrical ferrite core 13. On the other hand, the electronic view finder of recent small video cameras uses a deflection yoke as shown in FIG. In FIG. 4, both the horizontal coil 21 and the vertical coil 22 are wound into a perforated plate shape using a copper wire having an adhesive layer, and then press-molded into a semi-cylindrical shape. An exterior shield plate 23 made of permalloy is mounted on the outer periphery of the core to increase deflection efficiency instead of the ferrite core. Therefore,
It is more compact and lighter than conventional deflection yokes that use a cylindrical ferrite core.
発明が解決しよとする問題点
このようなフエライトコアを使用しない偏向ヨ
ークは今後ビデオカメラの小形、軽量化に伴な
い、より小形で偏向効率の良い偏向ヨークが望ま
れている。しかしながら、コイル自体を小さくす
ることは偏向効率を悪くすることであり容易では
なかつた。Problems to be Solved by the Invention As video cameras become smaller and lighter in the future, a deflection yoke that does not use a ferrite core is desired to be smaller and have better deflection efficiency. However, it has not been easy to reduce the size of the coil itself because it impairs the deflection efficiency.
問題点を解決するための手段
上記問題点を解決するために本発明は、水平コ
イルと垂直コイルの層間にパーマロイ又はアモル
フアス箔等の磁性体片を挿入した構成とするもの
である。Means for Solving the Problems In order to solve the above problems, the present invention has a structure in which a piece of magnetic material such as permalloy or amorphous foil is inserted between the layers of the horizontal coil and the vertical coil.
作 用
上記した構成により、水平コイルと垂直コイル
の層間に挿入したパーマロイ又はアモルフアス箔
などの磁性体片により各コイルのインダクタンス
が上がり、直流抵抗分は変わらないため、Ｌ／Ｒ
比が大きくなり偏向効率が向上する。但し垂直コ
イルはシールド効果のためＬ／Ｒ比アツプ分だけ
効率アツプにはならないが、水平、垂直コイル総
合の偏向効率は向上する。Effect With the above configuration, the inductance of each coil increases due to the magnetic material piece such as permalloy or amorphous foil inserted between the layers of the horizontal coil and vertical coil, but the DC resistance remains unchanged, so L/R
The ratio becomes larger and the deflection efficiency improves. However, due to the shielding effect of the vertical coil, the efficiency does not increase by the increase in the L/R ratio, but the overall deflection efficiency of the horizontal and vertical coils improves.
実施例
以下、本発明の一実施例を添付の図面を用いて
説明する。Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.
第１図は本発明の一実施例を示す断面構造図で
ある。又第２図は組立略図である。第１図、第２
図において１は水平コイルであり、粘着層を有す
る銅線を平板状に巻線し、半円筒状にプレス成形
したものである。２は垂直コイルであり同様にプ
レス成形したものである。内側に水平コイル１を
組合せ、その２枚の水平コイル１の突合せ部１ａ
の外周にパーマロイからなる短冊状の磁性体片４
（0.1mm以下）を絶縁テープ等にて固定し、その外
周に垂直コイル２を組合せ、最外周にシールド板
３（0.1mm程度のパーマロイ板）を約１周巻回回
定し構成している。水平コイル１の突合せ部１ａ
の外周に貼付固定している磁性体片４は本実施例
ではパーマロイ板としているが、アモルフアス箔
等でもよい。 FIG. 1 is a cross-sectional structural diagram showing one embodiment of the present invention. FIG. 2 is a schematic assembly diagram. Figures 1 and 2
In the figure, reference numeral 1 denotes a horizontal coil, which is made by winding a copper wire with an adhesive layer into a flat plate shape and press-molding it into a semi-cylindrical shape. 2 is a vertical coil, which is similarly press-molded. A horizontal coil 1 is combined inside, and the butt part 1a of the two horizontal coils 1 is
A strip-shaped magnetic material piece 4 made of permalloy is attached to the outer periphery of the
(0.1 mm or less) is fixed with insulating tape or the like, a vertical coil 2 is combined around its outer periphery, and a shield plate 3 (a permalloy plate of about 0.1 mm) is wound around the outermost periphery about once. Butt part 1a of horizontal coil 1
The magnetic material piece 4 attached and fixed to the outer periphery is a permalloy plate in this embodiment, but it may also be an amorphous foil or the like.
発明の効果
以上述べてきたように、本発明によれば、偏向
ヨークの外形寸法が殆んど変えることなく偏向効
率を上げることが可能で、しかも、小形で軽量化
も図れるなどの利点をもち、工業的価値の大なる
ものである。Effects of the Invention As described above, according to the present invention, it is possible to increase the deflection efficiency without changing the external dimensions of the deflection yoke, and it also has the advantage of being compact and lightweight. , is of great industrial value.
第１図は、本発明の偏向ヨークの一実施例を示
す断面図、第２図はその内部構造を示す分解斜視
図、第３図は従来の円筒状フエライトコアを用い
た偏向ヨークの断面図、第４図は円筒状フエライ
トコアを用いない小形偏向ヨークの断面図であ
る。
１……水平コイル、２……垂直コイル、３……
シールド板、４……磁性体片、１ａ……水平コイ
ルの突合せ部。
Fig. 1 is a sectional view showing an embodiment of the deflection yoke of the present invention, Fig. 2 is an exploded perspective view showing its internal structure, and Fig. 3 is a sectional view of a conventional deflection yoke using a cylindrical ferrite core. , FIG. 4 is a sectional view of a small deflection yoke that does not use a cylindrical ferrite core. 1...Horizontal coil, 2...Vertical coil, 3...
Shield plate, 4...Magnetic material piece, 1a...Abutting portion of horizontal coil.
Claims (1)
る銅線にて、略長方形板状に平巻し、半円筒状に
プレス成形し組合せて構成され、水平コイルと垂
直コイルの間に箔状の磁性体片を挿入した偏向ヨ
ーク。1. Both the horizontal coil and the vertical coil are made of copper wire with an adhesive layer, flat-wound into a substantially rectangular plate shape, press-formed into a semi-cylindrical shape, and combined, and a foil-like magnetic layer is placed between the horizontal coil and the vertical coil. Deflection yoke with body pieces inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61312197A JPS63166129A (en) | 1986-12-26 | 1986-12-26 | deflection yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61312197A JPS63166129A (en) | 1986-12-26 | 1986-12-26 | deflection yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63166129A JPS63166129A (en) | 1988-07-09 |
| JPH053103B2 true JPH053103B2 (en) | 1993-01-14 |
Family
ID=18026376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61312197A Granted JPS63166129A (en) | 1986-12-26 | 1986-12-26 | deflection yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63166129A (en) |
-
1986
- 1986-12-26 JP JP61312197A patent/JPS63166129A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63166129A (en) | 1988-07-09 |
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