JPH0812767B2 - Deflection yoke - Google Patents
Deflection yokeInfo
- Publication number
- JPH0812767B2 JPH0812767B2 JP62121944A JP12194487A JPH0812767B2 JP H0812767 B2 JPH0812767 B2 JP H0812767B2 JP 62121944 A JP62121944 A JP 62121944A JP 12194487 A JP12194487 A JP 12194487A JP H0812767 B2 JPH0812767 B2 JP H0812767B2
- Authority
- JP
- Japan
- Prior art keywords
- deflection coil
- molding resin
- deflection
- coil
- groove
- 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
- 238000000465 moulding Methods 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 30
- 230000000694 effects Effects 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
Description
【発明の詳細な説明】 産業上の利用分野 本発明はディスプレイ等に使用される偏向ヨークに関
するものである。Description: TECHNICAL FIELD The present invention relates to a deflection yoke used for a display or the like.
従来の技術 近年、コンピュータの端末機器としてのCRTディスプ
レイは高精細度化が進み、水平走査周波数は増々高くな
る傾向にあり、これに使用する偏向ヨークに対する高周
波数対応の要求は強くなっている。2. Description of the Related Art In recent years, CRT displays as terminal devices for computers have become more sophisticated and the horizontal scanning frequency has tended to become higher and higher, and there is an increasing demand for deflection yokes used for this to support high frequencies.
以下、図面を参照しながら、従来の偏向ヨークについ
て説明を行う。Hereinafter, a conventional deflection yoke will be described with reference to the drawings.
第４図、第５図、第６図は１個の偏向コイルを３分割
する場合、３個のそれぞれの部分となるように、巻線さ
れた平板状コイルである。FIG. 4, FIG. 5, and FIG. 6 are flat-plate coils wound such that when one deflection coil is divided into three, the deflection coil is divided into three portions.
第４図、第５図、第６図において、１は偏向磁界形成
部、２は前端連結部、３は後端連結部である。In FIGS. 4, 5, and 6, reference numeral 1 is a deflection magnetic field forming portion, 2 is a front end connecting portion, and 3 is a rear end connecting portion.
第７図、第８図、第９図は、必要な磁界分布を得るた
めに、第４図、第５図、第６図の平板状コイルを鞍型形
状にプレス成形等をすることにより得られた偏向コイル
である。FIGS. 7, 8 and 9 are obtained by press-forming the flat coil shown in FIGS. 4, 5 and 6 into a saddle shape in order to obtain the required magnetic field distribution. Deflection coil.
第７図、第８図、第９図において、１は偏向磁界形成
部、２は前端連結部、３は後端連結部である。In FIGS. 7, 8, and 9, 1 is a deflection magnetic field forming part, 2 is a front end connecting part, and 3 is a rear end connecting part.
第10図は水平偏向コイル４、垂直偏向コイル５を各２
個合計４個の偏向コイルよりなる偏向ヨークの４個の偏
向コイルの全てを３分割構成とした場合の構成図であ
る。12個の偏向コイルはそれぞれ矢印（→）の方向で所
定の位置に移動して保持される。FIG. 10 shows a horizontal deflection coil 4 and a vertical deflection coil 5 each 2
It is a block diagram when all the four deflection coils of the deflection yoke which consists of four deflection coils in total are divided into three parts. Each of the 12 deflection coils is moved and held in a predetermined position in the direction of the arrow (→).
第11図は第10図に示した12個の偏向コイルを所定の位
置に保持し、樹脂でインサート成形して得られた偏向ヨ
ークの断面図である。FIG. 11 is a cross-sectional view of a deflection yoke obtained by holding the 12 deflection coils shown in FIG. 10 in predetermined positions and insert-molding them with resin.
第11図において、４は水平偏向コイル、５は垂直偏向
コイル、６は成形樹脂、７は磁性体である。水平偏向コ
イル４、垂直偏向コイル５は全体を樹脂で被われてい
る。In FIG. 11, 4 is a horizontal deflection coil, 5 is a vertical deflection coil, 6 is a molding resin, and 7 is a magnetic material. The horizontal deflection coil 4 and the vertical deflection coil 5 are entirely covered with resin.
第12図は第11図の偏向ヨークの斜視図で、一部を断面
で示している。FIG. 12 is a perspective view of the deflection yoke of FIG. 11 and a part thereof is shown in cross section.
第12図において４は水平偏向コイル、５は垂直偏向コ
イル、６は成形樹脂、７は磁性体である。In FIG. 12, 4 is a horizontal deflection coil, 5 is a vertical deflection coil, 6 is a molding resin, and 7 is a magnetic material.
発明が解決しようとする問題点 しかしながら上記のような構成では、偏向コイルが動
作状態において偏向コイルから発生した熱が、偏向ヨー
クを構成する成形樹脂６の変形という悪影響をもたら
す。ディスプレイの水平走査周波数が高い程、発熱量が
多いことも一般的に知られている。Problems to be Solved by the Invention However, in the above-described configuration, heat generated from the deflection coil in the operating state of the deflection coil has an adverse effect of deformation of the molding resin 6 forming the deflection yoke. It is also generally known that the higher the horizontal scanning frequency of the display, the larger the amount of heat generation.
本発明は上記欠点に鑑み、偏向コイルから発生した熱
が成形樹脂を変形させないようにすることを目的とする
ものである。In view of the above-mentioned drawbacks, the present invention has an object to prevent the heat generated from the deflection coil from deforming the molding resin.
問題点を解決するための手段 この目的を達成するために本発明は、平板状コイルを
鞍型形状にプレス成形した偏向コイルを成形樹脂内にモ
ールドするとともに、この成形樹脂の内面に溝を設けて
前記偏向コイルの一部を、この溝を介して成形樹脂外に
露出させたものである。Means for Solving the Problems To achieve this object, according to the present invention, a deflection coil obtained by press-molding a flat-plate coil into a saddle shape is molded in a molding resin, and a groove is provided on the inner surface of the molding resin. A part of the deflection coil is exposed outside the molding resin through this groove.
作用 この構成によって成形樹脂の表面積が溝を設けた分増
加し、また偏向コイルから成形樹脂へ直接伝わる熱は溝
から放散される分減少することになり、成形樹脂への悪
影響は少なくなる。By this configuration, the surface area of the molding resin is increased by providing the groove, and the heat directly transmitted from the deflection coil to the molding resin is reduced by the amount dissipated from the groove, so that the adverse effect on the molding resin is reduced.
実施例 以下本発明の一実施例について、図面を参照しながら
説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例における偏向コイルの上面
図、第２図は第１図のＡ−Ａ′断面図である。1 is a top view of a deflection coil according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA 'in FIG.
第１図、第２図において、８は水平偏向コイルで、平
板状コイルに巻回したものを鞍型形状にプレス成形する
ことにより得られる。９は垂直偏向コイルで平板状コイ
ルに巻回したものを鞍型形状にプレス成形することによ
り得られる。10は成形樹脂で、水平偏向コイル８と垂直
偏向コイルをモールドしている。11は磁性体を示してい
る。In FIGS. 1 and 2, reference numeral 8 denotes a horizontal deflection coil, which is obtained by press-molding a coil wound around a flat coil into a saddle shape. A vertical deflection coil 9 is obtained by press-molding a vertical coil wound around a flat coil into a saddle shape. Reference numeral 10 denotes a molding resin, which molds the horizontal deflection coil 8 and the vertical deflection coil. 11 indicates a magnetic material.
第３図は第２図におけるＢ−Ｂ′断面図である。 FIG. 3 is a sectional view taken along the line BB ′ in FIG.
第３図において、８は水平偏向コイル、９は垂直偏向
コイル、10は成形樹脂、11は磁性体である。水平偏向コ
イル８は成形樹脂10に浅い溝12を設けることによりその
内周側が露出しており、垂直偏向コイル９は、成形樹脂
10に深い溝13を設けることによりその内周側の一部が露
出している。In FIG. 3, 8 is a horizontal deflection coil, 9 is a vertical deflection coil, 10 is a molding resin, and 11 is a magnetic material. The horizontal deflection coil 8 is exposed on the inner peripheral side by providing a shallow groove 12 in the molding resin 10, and the vertical deflection coil 9 is molded resin.
By providing the deep groove 13 in the portion 10, a part of the inner peripheral side thereof is exposed.
以上のように本実施例によれば、水平偏向コイル８、
垂直偏向コイル９から発生した熱は溝12,13により露出
した部分から外に放散され、この結果として成形樹脂10
に多量の熱が伝わることがなくなり、成形樹脂10の変形
という悪影響は少なくなる。As described above, according to this embodiment, the horizontal deflection coil 8,
The heat generated from the vertical deflection coil 9 is dissipated to the outside from the portions exposed by the grooves 12 and 13, and as a result, the molding resin 10
A large amount of heat is not transmitted to the mold, and the adverse effect of deformation of the molding resin 10 is reduced.
発明の効果 以上のように本発明は、平板状コイルを鞍型形状にプ
レス成形した偏向コイルを成形樹脂内にモールドすると
ともに、この成形樹脂の内面に溝を設けて前記偏向コイ
ルの一部を、この溝を介して成形樹脂外に露出させたも
のである。EFFECTS OF THE INVENTION As described above, the present invention molds a deflection coil obtained by press-molding a flat-plate coil into a saddle shape into a molding resin, and provides a groove on the inner surface of the molding resin to partially cover the deflection coil. It is exposed to the outside of the molding resin through this groove.
そして以上の構成とすれば、偏向コイルの一部が溝を
介して成形樹脂外に露出しているので、溝の分だけ成形
樹脂の表面積が広がって放熱効果が高まり、また偏向コ
イルから発生する熱がこの溝を介して成形樹脂外に放散
されることとなり、この結果として偏向コイルの発熱に
ともなう成形樹脂の変形がおきにくくなる。With the above configuration, since a part of the deflection coil is exposed to the outside of the molding resin through the groove, the surface area of the molding resin is expanded by the amount of the groove, and the heat radiation effect is enhanced, and the deflection coil is generated. The heat is dissipated to the outside of the molding resin through this groove, and as a result, the molding resin is less likely to be deformed due to the heat generation of the deflection coil.
また偏向コイルは成形樹脂中にモールドされ、その一
部が溝を介して成形樹脂外に露出する構成としているの
で、組立時等に偏向コイルに外力が直接加わりにくくな
り、その結果として変形や断線等の問題が生じにくくな
る。Also, because the deflection coil is molded in the molding resin and a part of it is exposed to the outside of the molding resin through the groove, it is difficult for external force to be directly applied to the deflection coil during assembly, resulting in deformation or disconnection. It becomes difficult to cause such problems.
第１図は本発明の実施例における偏向ヨークの上面図、
第２図は第１図のＡ−Ａ′断面図、第３図は第２図にお
けるＢ−Ｂ′断面図、第４図、第５図、第６図は３分割
した平板状コイルの斜視図、第７図、第８図、第９図は
プレス成形後の偏向コイルの斜視図、第10図は同コイル
の組合せを示す説明図、第11図は従来の偏向ヨークの断
面図、第12図は同一部切欠斜視図である。FIG. 1 is a top view of a deflection yoke in an embodiment of the present invention,
FIG. 2 is a sectional view taken along the line AA ′ in FIG. 1, FIG. 3 is a sectional view taken along the line BB ′ in FIG. 2, and FIGS. 4, 5, and 6 are perspective views of a plate coil divided into three parts. Figures 7, 7, 8 and 9 are perspective views of the deflection coil after press molding, Fig. 10 is an explanatory view showing the combination of the coils, and Fig. 11 is a sectional view of a conventional deflection yoke. FIG. 12 is a cutaway perspective view of the same portion.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小田 俊則 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 弘瀬 正ヨ里 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (56)参考文献 特開 昭49−129425（ＪＰ，Ａ) 特開 昭50−31719（ＪＰ，Ａ) 実開 昭54−117021（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshinori Oda 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Masayori Hirose, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (56) References JP 49-129425 (JP, A) JP 50-31719 (JP, A) JP 54-117021 (JP, U)
Claims (1)
偏向コイルを成形樹脂内にモールドするとともに、この
成形樹脂の内面に溝を設けて前記偏向コイルの一部を、
この溝を介して成形樹脂外に露出させた偏向ヨーク。1. A deflection coil obtained by press-molding a flat-plate coil into a saddle shape is molded in a molding resin, and a groove is provided on the inner surface of the molding resin to form a part of the deflection coil.
A deflection yoke exposed outside the molding resin through this groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62121944A JPH0812767B2 (en) | 1987-05-19 | 1987-05-19 | Deflection yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62121944A JPH0812767B2 (en) | 1987-05-19 | 1987-05-19 | Deflection yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63285850A JPS63285850A (en) | 1988-11-22 |
| JPH0812767B2 true JPH0812767B2 (en) | 1996-02-07 |
Family
ID=14823788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62121944A Expired - Fee Related JPH0812767B2 (en) | 1987-05-19 | 1987-05-19 | Deflection yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0812767B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49129425A (en) * | 1973-04-10 | 1974-12-11 | ||
| JPS5225284B2 (en) * | 1973-07-20 | 1977-07-06 | ||
| JPS587967Y2 (en) * | 1978-02-06 | 1983-02-12 | 松下電器産業株式会社 | deflection coil |
-
1987
- 1987-05-19 JP JP62121944A patent/JPH0812767B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63285850A (en) | 1988-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |