JPH06121182A - Deflection coil - Google Patents
Deflection coilInfo
- Publication number
- JPH06121182A JPH06121182A JP29095692A JP29095692A JPH06121182A JP H06121182 A JPH06121182 A JP H06121182A JP 29095692 A JP29095692 A JP 29095692A JP 29095692 A JP29095692 A JP 29095692A JP H06121182 A JPH06121182 A JP H06121182A
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- JP
- Japan
- Prior art keywords
- deflection coil
- twisted
- winding
- trumpet
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は陰極線管（ＣＲＴ）ディ
スプレー装置の電磁偏向コイルに関し、特に偏向歪の少
ないＣＲＴ用偏向コイルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic deflection coil for a cathode ray tube (CRT) display device, and more particularly to a deflection coil for a CRT with less deflection distortion.
【０００２】[0002]
【従来技術】ＣＲＴ用偏向コイルは垂直偏向コイルと水
平偏向コイルを基本に構成されている。従来のＣＲＴ偏
向コイルには基本的には次の二種がある。 （１）ラッパ状のフェライトコア（偏向ヨークコア）の
内側に水平偏向コイル巻線及び垂直偏向コイル巻線の両
方ともサドル（鞍）と類似の形を形成するように巻いた
サドル−サドル型。 （２）ラッパ状のフェライトコアの内側に、水平偏向コ
イル巻線及び垂直偏向コイル巻線の一方をサドル型に巻
き、他方をコアの内外周をめぐってトロイダル状に直接
巻いたサドル−トロイダル型。 また、これらの改良として、溝を使用するスロット型ま
たはステータ型と称される下記の形式がある。 （３）フェライトコアの内面に管軸方向（管軸方向から
見ると径方向）に延びる複数本の溝を形成し、それらの
溝の中に両方の巻線をサドル状に収容するサドル−サド
ル型（実開昭６１−５６７５７号公報）。 （４）フェライトコアの内面に管軸方向（管軸方向から
見ると径方向）に延びる複数本の溝を形成し、それらの
溝の中に一方の巻線をサドル状に収容し、他方をコアに
直接トロイダル巻きするサドルートロイダル型（先願に
係る実開昭６３−９７６０号公報）。2. Description of the Related Art A deflection coil for CRT is basically composed of a vertical deflection coil and a horizontal deflection coil. There are basically the following two types of conventional CRT deflection coils. (1) A saddle-saddle type in which a horizontal deflection coil winding and a vertical deflection coil winding are wound inside a trumpet-shaped ferrite core (deflection yoke core) so as to form a shape similar to a saddle (saddle). (2) A saddle-toroidal type in which one of a horizontal deflection coil winding and a vertical deflection coil winding is wound in a saddle shape inside a trumpet-shaped ferrite core, and the other is directly wound in a toroidal shape around the inner and outer circumferences of the core. Further, these improvements include the following types called slot type using a groove or a stator type. (3) A saddle-saddle in which a plurality of grooves extending in the tube axis direction (radial direction when viewed from the tube axis direction) are formed on the inner surface of the ferrite core, and both windings are accommodated in a saddle shape in the grooves. Type (Japanese Utility Model Publication No. 61-56757). (4) A plurality of grooves extending in the tube axis direction (radial direction when viewed from the tube axis direction) are formed on the inner surface of the ferrite core, and one winding is housed in the groove in the saddle shape and the other is formed. A saddle toroidal type in which a toroidal winding is directly wound around a core (Japanese Utility Model Application Laid-Open No. 63-9760).
【０００３】より具体的に述べると、上記（１）のタイ
プのサドル−サドル型偏向コイルでは、図１のようにラ
ッパ状のフェライトコア１の内面にラッパ状の絶縁物３
を挟んで垂直偏向コイル巻線２及び水平偏向コイル巻線
４をそれぞれサドル状に収容する。より好ましくは、垂
直偏向コイル巻線２の巻線分布を精密に制御するため
に、図３に示すように、フェライトコア１の内面に多数
の凸状セパレータ６で分離された案内溝５を形成し、そ
の中に巻線を施す。また絶縁物３の内面にも水平偏向コ
イル巻線４の巻線分布を精密に制御するために図３に類
似の多数の凸状セパレータで分離された収納溝を設け
て、その中に巻線を収納することが好ましい。一方、上
記（２）のタイプのサドル−トロイダル型偏向コイルで
は、図２のようにフェライトコア１の内面の溝５にラッ
パ状絶縁物３を挟んで垂直偏向コイル巻線２をトロイダ
ル状に、また水平偏向コイル巻線４をサドル状に収容す
る。絶縁物３の収納溝については上記（１）の場合と同
様にすることが好ましい。More specifically, in the saddle-saddle type deflection coil of the type (1), the trumpet-shaped insulator 3 is formed on the inner surface of the trumpet-shaped ferrite core 1 as shown in FIG.
The vertical deflection coil winding 2 and the horizontal deflection coil winding 4 are respectively housed in a saddle shape with sandwiching therebetween. More preferably, in order to precisely control the winding distribution of the vertical deflection coil winding 2, as shown in FIG. 3, a guide groove 5 separated by a large number of convex separators 6 is formed on the inner surface of the ferrite core 1. Then, the winding is applied in it. Also, in order to precisely control the winding distribution of the horizontal deflection coil winding 4 on the inner surface of the insulator 3, a storage groove separated by a large number of convex separators similar to FIG. 3 is provided, and the winding groove is provided therein. Is preferably stored. On the other hand, in the saddle-toroidal type deflection coil of the above type (2), the vertical deflection coil winding 2 is formed in a toroidal shape by sandwiching the trumpet-shaped insulator 3 in the groove 5 on the inner surface of the ferrite core 1 as shown in FIG. Further, the horizontal deflection coil winding 4 is housed in a saddle shape. The storage groove for the insulator 3 is preferably the same as in the case of (1) above.
【０００４】これらの絶縁物３を有する型の偏向コイル
は温度上昇を避けるのに都合が良く、また巻線分布の精
密な制御にも都合が良いので、本発明はこれらの型の偏
向コイルの改良に係る。なお上記で水平偏向コイル巻線
と垂直偏向コイル巻線は設計に依存して入れ替わる場合
もあり、フェライトコアの内面に垂直方向偏向コイル巻
線または水平方向偏向コイル巻線を施す場合には、それ
に対応して絶縁物の内面には水平方向偏向コイル巻線ま
たは垂直方向偏向コイル巻線を施す。Since the deflection coils of the type having these insulators 3 are convenient for avoiding temperature rise and also for precise control of the winding distribution, the present invention provides a deflection coil of these types. Related to improvement. In the above, the horizontal deflection coil winding and the vertical deflection coil winding may be interchanged depending on the design, and if the vertical deflection coil winding or the horizontal deflection coil winding is applied to the inner surface of the ferrite core, Correspondingly, a horizontal deflection coil winding or a vertical deflection coil winding is provided on the inner surface of the insulator.
【０００５】最近のＣＲＴ（陰極線管）ディスプレー
は、高解像度、小さいミスコンバーゼンス、低歪等の要
件が益々厳しくなってきている一方、安価に製造できる
ことが要求されているため、それに使用する偏向コイル
は高精細度化が必要であると共に、低価格化することが
必要である。また、偏向周波数は高周波化しており、高
周波化により増大する銅損を抑える為には、偏向コイル
の巻線に細い導線を採用する必要がある。また、高周波
化すると偏向コイルの自己インダクタンスはできるだけ
低く（約４００μＨ以下）しないと自己絶縁破壊（層間
絶縁破壊）が生じる。しかし、低インダクタンスにする
と偏向コイルの巻線数が少なくなり、高精度偏向磁界を
再現性良く実現し、製造ばらつきを抑えるには、巻線精
度を高精度化する必要がある。このような少ない巻線数
で所定の偏向エネルギーを確保するには、インダクタン
スの高い偏向コイルよりも大きな電流を流す必要があ
る。大きい電流を流すためには細い導線を複数本束ねる
ことにより、所定の温度上昇限界に治まる範囲内に銅損
を抑えなければならない。In recent CRT (cathode ray tube) displays, the requirements for high resolution, small misconvergence, low distortion, etc. are becoming more severe, but it is required that they can be manufactured at low cost. In addition to high definition, it is necessary to reduce the price. Further, the deflection frequency has become higher, and in order to suppress the copper loss that increases due to the higher frequency, it is necessary to employ a thin conductor wire for the winding of the deflection coil. Further, when the frequency is increased, the self-inductance of the deflection coil must be as low as possible (about 400 μH or less) to cause self-insulation breakdown (interlayer insulation breakdown). However, if the inductance is reduced, the number of windings of the deflection coil is reduced, and in order to realize a highly accurate deflection magnetic field with good reproducibility and suppress manufacturing variations, it is necessary to make the winding precision high. In order to secure a predetermined deflection energy with such a small number of windings, it is necessary to flow a larger current than the deflection coil having a high inductance. In order to pass a large current, it is necessary to bundle a plurality of thin conductors to suppress copper loss within a range where a predetermined temperature rise limit is suppressed.
【０００６】導線を束ねて高周波電流を流すと、たとえ
各線の自己インダクタンスが同一でも各線間の相互イン
ダクタンスのばらつきが実効的に無視できなくなり、各
線に流れる偏向電流が不均一となる。束内の各線は製造
時に常に同じ物理的位置に巻くことは不可能で、この位
置の非再現性が量産時におけるミスコンバーゼンスのば
らつきを大幅に大きくすることになる。この問題を回避
するためには、束ねた線に予め撚りを加えておく。これ
により、実質的に線間の相互インダクタンスの値のばら
つきを抑えることができ、また束ねた線のコイル上のど
の箇所を取ってみても、すべての線の物理的位置が上下
・左右大体均一な密度で分布することになり、各線は常
にほぼ同一位置に巻かれたことと等価になり、量産時に
おけるばらつきが抑えられ、結局ミスコンバーゼンスに
おけるばらつきを抑えることができる。When the conductor wires are bundled and a high-frequency current is caused to flow, even if the self-inductance of each wire is the same, the variation of the mutual inductance between the wires cannot be effectively ignored, and the deflection current flowing in each wire becomes non-uniform. Each wire in the bundle cannot always be wound at the same physical position during manufacturing, and the non-reproducibility of this position causes a large variation in misconvergence during mass production. In order to avoid this problem, twist is added to the bundled wire beforehand. This makes it possible to substantially suppress variations in the value of mutual inductance between lines, and the physical positions of all the lines are almost uniform in the vertical and horizontal directions, regardless of where on the coil the bundled lines are taken. Since the wires are distributed at various densities, it is equivalent to that the wires are always wound at substantially the same position, and variations in mass production can be suppressed, and variations in misconvergence can be eventually suppressed.
【０００７】[0007]
【発明が解決しようとする課題】細い導線は通常直径
０．０５ｍｍ〜０．３ｍｍであり、高周波用では所定の
電流容量を得るためには３０〜１００本程度撚った線を
使用する必要があるが、実際にこのような多数の線を一
本に撚るには大きな設備が必要となって設備費が高く、
巻線の均一な分布密度が得にくく、歩留も悪くなる。従
って、本発明の目的はこうした課題を解決することにあ
る。The fine conductor wire usually has a diameter of 0.05 mm to 0.3 mm, and for high frequency use, it is necessary to use about 30 to 100 twisted wires in order to obtain a predetermined current capacity. However, in reality, large equipment is required to twist such a large number of wires into one, and the equipment cost is high,
It is difficult to obtain a uniform distribution density of windings, and the yield also deteriorates. Therefore, an object of the present invention is to solve these problems.
【０００８】[0008]
【課題を解決するための手段】上記の課題は、本発明に
したがって、ラッパ状のフェライトコアと、そのフェラ
イトコアの内面に沿って配置されたラッパ状の絶縁物
と、前記絶縁物の内面に沿って配置された第１の垂直方
向または水平方向偏向コイル巻線と、前記絶縁物の外面
に配置された第２の水平方向または垂直方向偏向コイル
巻線とによって構成されたＣＲＴ用偏向コイルにおい
て、前記偏向コイル巻線の少なくとも一方、好ましくは
両方を、撚り線を複数本用いて撚った撚り導線で構成
し、前記撚り線の撚りピッチを前記撚り導線の撚りピッ
チよりも長く定めることを特徴とする偏向コイルにより
解決されることが分かった。なお、この場合に、ラッパ
状絶縁物の内面に、第１の垂直方向または水平方向偏向
コイル巻線の位置決めを行うための巻線収納みぞを形成
する内面方向に延びた凸状セパレータを設けることが好
ましい。同様に、ラッパ状フェライトコアは、その内面
に、第２の垂直方向または水平方向偏向コイルの位置決
めを行うための、管軸方向に延びる複数の案内溝を有す
ることが好ましい。また、偏向コイル巻線の少なくとも
一方は、撚り線を複数本用いて撚った撚り導線を、更に
複数本用いて撚られた３重撚り導線より構成しても良
い。According to the present invention, there is provided a trumpet-shaped ferrite core, a trumpet-shaped insulator arranged along the inner surface of the ferrite core, and an inner surface of the insulator. In a deflection coil for a CRT, which is constituted by a first vertical or horizontal deflection coil winding arranged along the line and a second horizontal or vertical deflection coil winding arranged on the outer surface of the insulator. At least one of the deflection coil windings, preferably both, is composed of a twisted conductor twisted by using a plurality of twisted wires, and the twist pitch of the twisted wire is determined to be longer than the twist pitch of the twisted wire. It was found to be solved by a characteristic deflection coil. In this case, on the inner surface of the trumpet-shaped insulator, a convex separator extending in the inner surface direction that forms a winding housing groove for positioning the first vertical or horizontal deflection coil winding is provided. Is preferred. Similarly, the trumpet-shaped ferrite core preferably has on its inner surface a plurality of guide grooves extending in the tube axial direction for positioning the second vertical or horizontal deflection coil. Further, at least one of the deflection coil windings may be formed of a twisted conductor wire formed by twisting a plurality of twisted wires and a triple twisted conductor wire formed by twisting a plurality of twisted wires.
【０００９】例えば、まず１０〜３０本の細線を予め撚
っておき、更にそれらを数本用いて再度１本に撚る。こ
の時１回目の撚りと２回目の撚りのピッチは１回目のよ
りぴちを２回目の撚りピッチよりも大きくすることで容
易に均一な密度の撚り導線を得ることができる。撚りピ
ッチの関係をこの逆にすると、均一に撚ることができ
ず、したがって仕上がった線の撚りが場所に依存して不
均一となり、結果的に前述の相互インダクタンスのばら
つきを増大するることになり、コイル上の線の物理的な
位置の非再現性につながり、結局量産時にミスコンバー
ゼンスのばらつきを増大することになる。For example, first, 10 to 30 thin wires are twisted in advance, and several of them are used to twist them again into one. At this time, the pitch of the first twist and the second twist can be made larger by making the pitch of the first twist larger than the pitch of the second twist, so that a twisted conductor wire having a uniform density can be easily obtained. If the relationship of the twist pitch is reversed, it is not possible to twist evenly, so the twist of the finished wire becomes uneven depending on the location, and as a result, the above-mentioned variation in mutual inductance increases. This leads to non-reproducibility of the physical position of the wire on the coil, which eventually increases the variation in misconvergence during mass production.
【００１０】[0010]
【実施例の説明】以下に本発明による偏向コイルの実施
例を比較例と対比して説明する。図１に示した構造の偏
向コイルであって、絶縁物３の内面に巻線収納溝を有す
るものを利用して、水平偏向コイル巻線の撚り方を変え
てミスコンバーゼンスを測定した。なお垂直偏向コイル
巻線は撚らなかった。Description of Embodiments An embodiment of the deflection coil according to the present invention will be described below in comparison with a comparative example. Using the deflection coil having the structure shown in FIG. 1 and having the winding accommodating groove on the inner surface of the insulator 3, the twisting direction of the horizontal deflection coil winding was changed and the misconvergence was measured. The vertical deflection coil winding was not twisted.
【００１１】実施例１ 直径０．１ｍｍの被覆細線を２０本束ね、撚りピッチ２
８ｍｍで撚り、こうして得られた撚り線を３本束ねて９
ｍｍの撚りピッチで撚った。 比較例１ 直径０．１ｍｍの被覆細線を２０本束ね、撚りピッチ２
８ｍｍで撚り、こうして得られた撚り線を３本束ねて２
８ｍｍの撚りピッチで撚った。 比較例２ 直径０．１ｍｍの被覆細線を６０本束ね、撚りピッチ２
８ｍｍで撚った。 比較例３ 直径０．３５ｍｍの被覆細線を５本束ねた（撚り無
し）。 比較例４ 直径０．１ｍｍの被覆細線を２０本束ね、撚りピッチ２
８ｍｍで撚り、こうして得られた撚り線を３本束ねた
（撚り無し）。 ２０インチＣＲＴを水平偏向周波数ｆH ＝７６ｋＨｚ、
垂直偏向周波数ｆV ＝６０Ｈｚで駆動し、ミスコンバー
ゼンスを測定した。得られた結果を表１に示す。ここに
ミスコンバーゼンスは次のように定義される。Example 1 Twenty coated fine wires having a diameter of 0.1 mm are bundled and a twist pitch of 2
Twist at 8 mm, bundle 3 strands thus obtained into 9
Twisted with a twist pitch of mm. Comparative Example 1 Twenty coated thin wires with a diameter of 0.1 mm are bundled and a twist pitch of 2
Twist at 8 mm, bundle 3 strands thus obtained into 2
It was twisted at a twist pitch of 8 mm. Comparative Example 2 60 thin coated wires with a diameter of 0.1 mm were bundled and twisted at a pitch of 2
Twisted at 8 mm. Comparative Example 3 Five coated fine wires having a diameter of 0.35 mm were bundled (no twist). Comparative Example 4 Twenty coated fine wires with a diameter of 0.1 mm are bundled and a twist pitch of 2
It was twisted at 8 mm, and three twisted wires thus obtained were bundled (no twist). 20 inch CRT with horizontal deflection frequency f H = 76 kHz,
Misconvergence was measured by driving at a vertical deflection frequency f V = 60 Hz. The results obtained are shown in Table 1. Here, misconvergence is defined as follows.
【００１２】図４のようにＣＲＴの走査面の水平方向座
標をＸ、垂直方向座標をＹと取ると次のようになる。た
だし添字Ｂはブルーを、Ｒはレッドに対する値を表す。 ミスコンバーゼンスＩ：左右画面端部の横方向非点収差
（ＸB −ＸR ） ミスコンバーゼンスII：画面隅部の横方向非点収差（Ｐ
ＱＸB −ＰＱＸR ） ミスコンバーゼンスIII ：画面隅部の縦方向非点収差
（ＰＱＹB −ＰＱＹR ） 得られた測定値のばらつき３σ（ｍｍ）を算出して表に
示した。また温度上昇は水平偏向コイルの最大温度と周
囲温度との差を表す。As shown in FIG. 4, when the horizontal coordinate of the scanning surface of the CRT is X and the vertical coordinate is Y, the result is as follows. However, the subscript B represents blue and the value R represents red. Misconvergence I: lateral astigmatism of the left and right end of the screen (X B -X R) misconvergence II: lateral astigmatism of the screen corners (P
QX B -PQX R) misconvergence III: it is shown in Table calculates the longitudinal astigmatism of the screen corner (PQY B -PQY R) dispersion of the resulting measured values 3σ (mm). Further, the temperature rise represents the difference between the maximum temperature of the horizontal deflection coil and the ambient temperature.
【００１３】[0013]
【表１】 [Table 1]
【００１４】[0014]
【発明の効果】表１の実施例１の結果から分かるよう
に、水平偏向コイル巻線を、撚り線を複数本用いて撚っ
た撚り導線で構成し、撚り線の撚りピッチを撚り導線の
撚りピッチよりも長く定めることにより、ミスコンバー
ゼンスを最小にできる。撚りピッチが本発明とは逆の関
係になる比較例１では、ミスコンバーゼンスのばらつき
が増大する。これは撚り導体内の巻線密度を均一にでき
ないためである。一方、１回撚りの例である比較例２で
は、ミスコンバーゼンスのばらつき、温度上昇共に実施
例に損色はないが、産業的にコスト高になる問題があ
る。更に撚りを加えない場合を示す比較例３、また撚り
を加えたものを単に束ねたただけのものである比較例４
はいずれも大きいミスコンバーゼンスのばらつきを示し
た。また本発明は撚りを加えない従来例（比較例３）に
比して温度上昇は抑制できた。以上のように、本発明に
よると、高精細度のＣＲＴ用偏向コイルが提供できる。As can be seen from the results of Example 1 in Table 1, the horizontal deflection coil winding is constituted by a twisted conductor wire obtained by twisting a plurality of twisted wires, and the twist pitch of the twisted wire is Misconvergence can be minimized by setting the length longer than the twist pitch. In Comparative Example 1 in which the twist pitch has an inverse relationship to that of the present invention, variations in misconvergence increase. This is because the winding density in the twisted conductor cannot be made uniform. On the other hand, in Comparative Example 2 which is an example of single-twisting, although there is no discoloration in the Example with respect to variations in misconvergence and temperature rise, there is a problem that the cost becomes industrially high. Comparative Example 3 showing a case in which no twist is further added, and Comparative Example 4 in which a twisted product is simply bundled.
All showed large variations in misconvergence. Further, in the present invention, the temperature rise could be suppressed as compared with the conventional example (Comparative Example 3) in which no twist was added. As described above, according to the present invention, a high definition CRT deflection coil can be provided.
【図１】ラッパ状のフェライトコア（偏向ヨークコア）
の内側に水平偏向コイル巻線及び垂直偏向コイル巻線の
両方ともサドル（鞍）と類似の形を形成するように巻い
たサドル−サドル型の偏向コイルを示す断面図である。FIG. 1 A trumpet-shaped ferrite core (deflection yoke core)
FIG. 3 is a cross-sectional view showing a saddle-saddle type deflection coil in which both the horizontal deflection coil winding and the vertical deflection coil winding are wound inside so as to form a shape similar to a saddle (saddle).
【図２】ラッパ状のフェライトコアの内側に、水平偏向
コイル巻線及び垂直偏向コイル巻線の一方をサドル型に
巻き、他方をコアの内外周をめぐってトロイダル状に直
接巻いたサドル−トロイダル型の偏向コイルを示す断面
図である。FIG. 2 is a saddle-toroidal type in which one of a horizontal deflection coil winding and a vertical deflection coil winding is wound in a saddle shape inside a trumpet-shaped ferrite core, and the other is directly wound in a toroidal shape around the inner and outer circumferences of the core. It is sectional drawing which shows a deflection coil.
【図３】図１、図２のフェライトコアとして使用できる
ラッパ型フェライトコアを巻軸に沿って前方から見た正
面図である。FIG. 3 is a front view of a trumpet-type ferrite core that can be used as the ferrite core of FIGS. 1 and 2 as seen from the front along the winding axis.
【図４】ミスコンバーゼンスを説明する図である。FIG. 4 is a diagram illustrating misconvergence.
１：ラッパ状のフェライトコア ２：垂直偏向コイル巻線 ３：ラッパ状の絶縁物 ４：水平偏向コイル巻線 ５：案内溝 ６：凸状セパレータ 1: Trumpet-shaped ferrite core 2: Vertical deflection coil winding 3: Trumpet-shaped insulator 4: Horizontal deflection coil winding 5: Guide groove 6: Convex separator
───────────────────────────────────────────────────── フロントページの続き (72)発明者 東海林 君春 東京都中央区日本橋一丁目13番１号ティー ディーケイ株式会社内 (72)発明者 鈴木 秀和 東京都中央区日本橋一丁目13番１号ティー ディーケイ株式会社内 (72)発明者 去石 悟 東京都中央区日本橋一丁目13番１号ティー ディーケイ株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kimiharu 1-13-1 Nihonbashi, Chuo-ku, Tokyo T-DK Co., Ltd. (72) Inventor Hidekazu Suzuki 1-13-1 Nihonbashi, Chuo-ku, Tokyo DK Corporation (72) Inventor Satoru Ishiishi 1-13-1 Nihonbashi, Chuo-ku, Tokyo T-DK Corporation
Claims (4)
ライトコアの内面に沿って配置されたラッパ状の絶縁物
と、前記絶縁物の内面に沿って配置された第１の垂直方
向または水平方向偏向コイル巻線と、前記絶縁物の外面
に配置された第２の水平方向または垂直方向偏向コイル
巻線とによって構成されたＣＲＴ用偏向コイルにおい
て、前記偏向コイル巻線の少なくとも一方は、撚り線を
複数本用いて撚った撚り導線で構成され、前記撚り線の
撚りピッチは前記撚り導線の撚りピッチよりも長く定め
られていることを特徴とするＣＲＴ用偏向コイル。1. A trumpet-shaped ferrite core, a trumpet-shaped insulator arranged along the inner surface of the ferrite core, and a first vertical or horizontal deflection arranged along the inner surface of the insulator. In a CRT deflection coil constituted by a coil winding and a second horizontal or vertical deflection coil winding arranged on the outer surface of the insulator, at least one of the deflection coil windings is a stranded wire. A deflection coil for a CRT, comprising a twisted conductor wire formed by twisting a plurality of strands, wherein a twist pitch of the twisted wire is set to be longer than a twist pitch of the twisted conductor wire.
向または水平方向偏向コイル巻線の位置決めを行うため
の巻線収納みぞを形成する内面方向に延びた凸状セパレ
ータを設けたことを特徴とする請求項１に記載のＣＲＴ
用偏向コイル。2. An inner surface of the trumpet-shaped insulator is provided with a convex separator extending in the inner surface forming a winding housing groove for positioning the first vertical or horizontal deflection coil winding. CRT according to claim 1, characterized in that
Deflection coil.
に、第２の垂直方向または水平方向偏向コイルの位置決
めを行うための、管軸方向に延びる複数の案内溝を有す
ることを特徴とする請求項１に記載のＣＲＴ用偏向コイ
ル。3. The trumpet-shaped ferrite core has on its inner surface a plurality of guide grooves extending in the tube axis direction for positioning the second vertical or horizontal deflection coil. 1. A deflection coil for CRT according to 1.
は、撚り線を複数本用いて撚った撚り導線を、更に複数
本用いて撚られた３重撚り導線より構成されていること
を特徴とする請求項１ないし３のいずれかに記載のＣＲ
Ｔ用偏向コイル。4. At least one of the deflection coil windings is configured by a twisted conductive wire formed by twisting a plurality of twisted wires, and a triple twisted conductive wire twisted by using a plurality of twisted wires. CR according to any one of claims 1 to 3,
Deflection coil for T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29095692A JP3084327B2 (en) | 1992-10-06 | 1992-10-06 | Deflection coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29095692A JP3084327B2 (en) | 1992-10-06 | 1992-10-06 | Deflection coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06121182A true JPH06121182A (en) | 1994-04-28 |
| JP3084327B2 JP3084327B2 (en) | 2000-09-04 |
Family
ID=17762646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29095692A Expired - Fee Related JP3084327B2 (en) | 1992-10-06 | 1992-10-06 | Deflection coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3084327B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386840C (en) * | 2004-01-19 | 2008-05-07 | 芜湖市电真空研究所 | Deflecting coil for cathode ray tube and its manufacture method |
-
1992
- 1992-10-06 JP JP29095692A patent/JP3084327B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386840C (en) * | 2004-01-19 | 2008-05-07 | 芜湖市电真空研究所 | Deflecting coil for cathode ray tube and its manufacture method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3084327B2 (en) | 2000-09-04 |
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