JPH03152835A - Deflection yoke - Google Patents
Deflection yokeInfo
- Publication number
- JPH03152835A JPH03152835A JP1291518A JP29151889A JPH03152835A JP H03152835 A JPH03152835 A JP H03152835A JP 1291518 A JP1291518 A JP 1291518A JP 29151889 A JP29151889 A JP 29151889A JP H03152835 A JPH03152835 A JP H03152835A
- Authority
- JP
- Japan
- Prior art keywords
- deflection coil
- separator
- deflection
- coil
- horizontal
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は偏向ヨーク、特に受像管に装着される偏向ヨ
ークに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a deflection yoke, particularly to a deflection yoke mounted on a picture tube.
従来、この種の装置としては、第４図ないし第６図に示
したものが知られている。図において、１はサドル−ト
ロイダル形の偏向ヨークであり、サドル形に巻かれた水
平偏向コイル２と、この水平偏向コイル２の外側にセパ
レータ３を介して設けられた高透磁コア４とトロイダル
形に巻かれた垂直偏向コイル５とからなっている。Conventionally, as this type of apparatus, those shown in FIGS. 4 to 6 are known. In the figure, 1 is a saddle-toroidal deflection yoke, which includes a horizontal deflection coil 2 wound in a saddle shape, a high permeability core 4 provided outside the horizontal deflection coil 2 via a separator 3, and a toroidal deflection yoke. It consists of a vertical deflection coil 5 wound into a shape.
前記構成において、水平および垂直偏向コイル２．５の
走査のためのノコギリ波偏向電流を流すと、偏向磁界が
生じる。これと同時にこれら両コイル２．５には交流損
失（銅損、うず電流積および表皮損失）が発生し、他方
、コア４内には鉄損（ヒステリシス損、渦電流損）が発
生する。これらの損失は、コイル２，５に流れる偏向電
流の周波数か高くなり、また、偏向電流が多くなるにし
たがって大となる。ところで、近年、画像の解像度を上
げるために水平偏向コイル２側の周波数を高くする方法
が採用されるようになり、また、大画面を得るために広
角偏向が要求され、偏向電流を多くするようになった。In the configuration described above, when a sawtooth deflection current is applied for scanning the horizontal and vertical deflection coils 2.5, a deflection magnetic field is generated. At the same time, alternating current losses (copper loss, eddy current product, and skin loss) occur in both coils 2.5, and iron losses (hysteresis loss, eddy current loss) occur in the core 4. These losses increase as the frequency of the deflection current flowing through the coils 2 and 5 increases and as the deflection current increases. By the way, in recent years, a method of increasing the frequency on the horizontal deflection coil 2 side has been adopted to increase the resolution of images, and wide-angle deflection is required to obtain a large screen, so it is necessary to increase the deflection current. Became.
このため、偏向ヨーク１の各部の温度上昇が一層大とな
ってコア４の特性の劣化やセパレータ３の変形および偏
向ヨーク全体の変形に伴うコンバーゼンス変化をひき起
こしたり、絶縁物の熱劣化により偏向ヨーク１の耐久性
の低下をきたす等の問題が生ずるようになった。Therefore, the temperature rise in each part of the deflection yoke 1 becomes even greater, causing deterioration of the characteristics of the core 4, deformation of the separator 3, and convergence change due to deformation of the entire deflection yoke. Problems such as a decrease in the durability of the yoke 1 have arisen.
（発明が解決しようとする課題〕
しかしながら、従来の偏向ヨークにおいては、高解像度
又は広角偏向を得ることを目的とした水平偏向コイル２
に流す偏向電流の高周波化、大電流化に伴って偏向ヨー
クｌの各部の温度−［昇を抑えるため、コイル断面積や
コア体積の増大化あるいは冷却ファンの設置等の対策を
講じているが、特に、１３０ ｋＨｚのような高周波で
走査するものや１１０℃偏向角等のものにおいては、充
分な冷却効果を得ることができないという問題があった
。(Problems to be Solved by the Invention) However, in the conventional deflection yoke, the horizontal deflection coil 2 for the purpose of obtaining high resolution or wide-angle deflection
As the frequency and current of the deflection current flowing through the deflection yoke become higher and larger, the temperature of each part of the deflection yoke l increases.In order to suppress the rise in temperature, measures such as increasing the coil cross-sectional area and core volume or installing a cooling fan are being taken. In particular, in those scanning at a high frequency such as 130 kHz and those having a deflection angle of 110° C., there is a problem that a sufficient cooling effect cannot be obtained.
この発明け、上記のような問題を解決するためになされ
たもので、セパレータをプラスチックと高熱伝導性セラ
ミックスより成る樹脂成形体で製作し、セパレータに高
熱伝導性を持たせたことにより、高周波走査時や偏向電
流を大きくする必要のあるときでも偏向ヨークの温度上
昇を抑制できる偏向ヨークを得ることを目的としている
。This invention was made to solve the above problems.The separator is made of a resin molded body made of plastic and highly thermally conductive ceramics, and by giving the separator high thermal conductivity, high frequency scanning is possible. The object of the present invention is to obtain a deflection yoke that can suppress the temperature rise of the deflection yoke even when the deflection current needs to be increased.
この発明に係る偏向ヨークは水平偏向コイルと垂直偏向
コイルを隔離しているセパレータを、プラスチックと高
熱伝導性セラミックスより成る樹脂成形体で製作するこ
とにより、セパレータが高熱伝導性を有するようにした
ものである。In the deflection yoke according to the present invention, the separator that separates the horizontal deflection coil and the vertical deflection coil is made of a resin molded body made of plastic and highly thermally conductive ceramic, so that the separator has high thermal conductivity. It is.
この発明における偏向ヨークは、水平偏向コイルと垂直
偏向コイルを隔離するセパレータを、プラスチックと高
熱伝導性セラミックスより成る樹脂成形体で製作したこ
とにより、セパレータの熱伝導性を向上させ、水平偏向
コイル、垂直偏向コイルおよびコアで生ずる銅損と鉄損
により発生した熱を、セパレータを通して効率よく空気
中に放散させるように働く。In the deflection yoke of this invention, the separator that separates the horizontal deflection coil and the vertical deflection coil is made of a resin molded body made of plastic and highly thermally conductive ceramics, thereby improving the thermal conductivity of the separator. It works to efficiently dissipate heat generated by copper loss and iron loss occurring in the vertical deflection coil and core into the air through the separator.
以下に、この発明の一実施例を図に基づいて説明する。 An embodiment of the present invention will be described below based on the drawings.
第１図及び第２図は、それぞれこの発明の偏向ヨークの
一実施例を示す側断面図及び正面図であり、図において
、１は偏向ヨークであり、この一実施例では、サドル−
トロイダル形の偏向ヨークを用いた場合について説明す
る。２は水平偏向コイル、３は高熱伝導性を有するセパ
レータ、４はコアであるフェライトコア、５はこのコア
に巻かれた垂直偏向コイル、６は放熱フィンである。1 and 2 are a side sectional view and a front view, respectively, showing an embodiment of the deflection yoke of the present invention. In the figures, 1 is the deflection yoke, and in this embodiment, the saddle
A case where a toroidal deflection yoke is used will be explained. 2 is a horizontal deflection coil, 3 is a separator having high thermal conductivity, 4 is a ferrite core, 5 is a vertical deflection coil wound around this core, and 6 is a radiation fin.
前記サドル−トロイダル形の偏向ヨーク１は、水平偏向
コイル２と、この水平偏向コイル２の外側にセパレータ
３を介して設けたフェライトコア４と、トロイダル形に
巻かれた垂直偏向コイル５とからなっている。第３図は
セパレータ３の断面の一部分を拡大して示したものであ
り、７はプラスチック、８は高熱伝導性セラミックス粉
体の粒子である。The saddle-toroidal deflection yoke 1 is composed of a horizontal deflection coil 2, a ferrite core 4 provided outside the horizontal deflection coil 2 with a separator 3 in between, and a vertical deflection coil 5 wound in a toroidal shape. ing. FIG. 3 is an enlarged view of a part of the cross section of the separator 3, in which 7 is a plastic particle and 8 is a particle of highly thermally conductive ceramic powder.
つぎに、動作について説明する。Next, the operation will be explained.
偏向ヨーク１を動作させることにより、水平偏向コイル
２及び垂直偏向コイル５で生じた銅損によりて、水平偏
向コイル２及び垂直偏向コイル５の温度は上昇する。ま
た、コア４では鉄損が生じ、コア４の温度も上昇する。By operating the deflection yoke 1, the temperatures of the horizontal deflection coil 2 and the vertical deflection coil 5 increase due to copper loss generated in the horizontal deflection coil 2 and the vertical deflection coil 5. Moreover, iron loss occurs in the core 4, and the temperature of the core 4 also increases.
これに対し、セパレータ３はそれ自身は発熱しないので
、周囲の空気にふ、れている放熱フィン６は低温である
。このため、水平偏向コイル２．垂直偏向コイル５及び
コア４で生じた熱は、セパレータ３が高熱伝導性である
ため、セパレータ３が水平偏向コイル２とコア４の間に
はさまれた部分の温度と周囲の空気にふれているフィン
６の温度との温度差によって、セパレータ３を伝わり、
空気中に効率よく放出されるため、水平偏向コイル２．
垂直偏向コイル５．コア４の温度は低くなる。この結果
、偏向電流の周波数を上げて画像の解像度を向上させる
ことができるうえに、偏向電流を大きくすることがてき
、広角度偏向ができる。On the other hand, since the separator 3 itself does not generate heat, the heat radiation fins 6 exposed to the surrounding air are at a low temperature. For this reason, the horizontal deflection coil 2. Since the separator 3 has high thermal conductivity, the heat generated in the vertical deflection coil 5 and the core 4 is absorbed by the temperature of the portion sandwiched between the horizontal deflection coil 2 and the core 4 and the surrounding air. Due to the temperature difference between the temperature of the fins 6 and the temperature of the fins 6, the temperature is transmitted through the separator 3,
For efficient release into the air, horizontal deflection coils 2.
Vertical deflection coil5. The temperature of the core 4 becomes lower. As a result, the frequency of the deflection current can be increased to improve image resolution, and the deflection current can also be increased, allowing wide-angle deflection.
この発明の一実施例によれば、受像管Ｔに装着した偏向
ヨーク１に設けた水平偏向コイル２と垂直偏向コイル５
を隔離するためのセパレータ３をプラスチックと高熱伝
導性セラミックス粒体の混合体の成形体としたことによ
り、セパレータ３に高熱伝導性を持たせ、高周波数、大
偏向電流で、偏向ヨークを動作させても温度上昇が低く
抑えられる偏向ヨーク１を提供できるという効果を奏す
る。According to an embodiment of the present invention, a horizontal deflection coil 2 and a vertical deflection coil 5 are provided on a deflection yoke 1 attached to a picture tube T.
By making the separator 3 for isolating the particles into a molded body of a mixture of plastic and highly thermally conductive ceramic particles, the separator 3 has high thermal conductivity, and the deflection yoke can be operated at high frequency and large deflection current. Therefore, it is possible to provide a deflection yoke 1 in which the temperature rise can be suppressed to a low level.
また、第１図に示したように、水平偏向コイル２と垂直
偏向コイル５を隔離するためのセパレータ３の受像管Ｔ
のスクリーン側とネック側を拡大し、放熱フィン６の機
能を持たせたことにより、前記水平偏向コイル２．垂直
偏向コイル５およびコア４に発生した熱をセパレータ３
を通して一層効率よく空気中に拡散させることができる
。Further, as shown in FIG. 1, the picture tube T of the separator 3 for separating the horizontal deflection coil 2 and the vertical deflection coil 5 is
By enlarging the screen side and neck side of the horizontal deflection coil 2. and giving it the function of a heat dissipation fin 6, the horizontal deflection coil 2. The heat generated in the vertical deflection coil 5 and core 4 is transferred to the separator 3.
can be more efficiently diffused into the air through
（他の実施例）
前記実施例では、偏向ヨーク１がサドル−トロイダル形
の偏向ヨークについて説明したが、こねに限定されず、
トロイダル−トロイダル形あるいはサドル−サドル形で
あっても同様な効果を奏する。(Other Embodiments) In the above embodiments, the deflection yoke 1 is of the saddle-toroidal type, but the deflection yoke 1 is not limited to kneading.
A similar effect can be obtained even if the toroidal-toroidal type or the saddle-saddle type is used.
また、前記実施例では、セパレータ３と放熱フィン６と
を一体形としたが、放熱フィン６の部分だけセパレータ
とは別の高熱伝導性、高電気抵抗の物質でつくり、セパ
レータ３に取り付けても同様の効果を奏する。Further, in the above embodiment, the separator 3 and the radiation fins 6 are integrated, but the radiation fins 6 may be made of a material with high thermal conductivity and high electrical resistance that is different from the separator and attached to the separator 3. It has a similar effect.
以上に説明してきたように、この発明によれば、水平偏
向コイルと垂直偏向コイルを隔離するセパレータをプラ
スチックと高熱伝導性セラミックス粒体の混合成形体で
製作したことにより、セパレータに高熱伝導性を持たせ
ることができる。As explained above, according to the present invention, the separator that separates the horizontal deflection coil and the vertical deflection coil is made of a molded mixture of plastic and highly thermally conductive ceramic particles, thereby imparting high thermal conductivity to the separator. You can have it.
そして、セパレータに放熱フィンの機能を持たせたこと
により、高周波数、大偏向電流で偏向ヨークを動作させ
ても温度上昇が低く抑えられる効果がある。Furthermore, by providing the separator with the function of a heat dissipation fin, the temperature rise can be suppressed to a low level even when the deflection yoke is operated at a high frequency and with a large deflection current.
第１図はこの発明の一実施例による偏向ヨークを示す側
断面図、第２図は同偏向ヨークを示す正面図、第３図は
同偏向ヨークのセパレータの断面の部分拡大図、第４図
は従来の偏向ヨークを示す側断面図、第５図は同断面図
、第６図は同正面図である。
１は偏向ヨーク、２は水平偏向コイル、３はセパレータ
、４はコア、５は垂直偏向コイル、６は放熱フィン、７
はプラスチック、８は高熱伝導性セラミックスである。
なお、図中、同一符号は同一部分または相当部分を示す
。FIG. 1 is a side sectional view showing a deflection yoke according to an embodiment of the present invention, FIG. 2 is a front view showing the same deflection yoke, FIG. 3 is a partially enlarged cross-sectional view of a separator of the same deflection yoke, and FIG. 4 5 is a side sectional view showing a conventional deflection yoke, FIG. 5 is a sectional view thereof, and FIG. 6 is a front view thereof. 1 is a deflection yoke, 2 is a horizontal deflection coil, 3 is a separator, 4 is a core, 5 is a vertical deflection coil, 6 is a radiation fin, 7
is plastic, and 8 is highly thermally conductive ceramic. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
クに設けた水平偏向コイルと垂直偏向コルイを隔離する
ためのセパレータが、プラスチックと高熱伝導性セラミ
ックス粒体の混合体の成形体であることを特徴とする偏
向ヨーク。A deflection yoke attached to a picture tube, in which a separator for separating a horizontal deflection coil and a vertical deflection coil provided on this deflection yoke is a molded body of a mixture of plastic and highly thermally conductive ceramic particles. A deflection yoke featuring
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1291518A JPH03152835A (en) | 1989-11-09 | 1989-11-09 | Deflection yoke |
| KR1019900014183A KR930000791B1 (en) | 1989-11-09 | 1990-09-08 | Deflection yoke |
| US07/599,901 US5138290A (en) | 1989-11-09 | 1990-10-19 | Deflection yoke |
| EP19900121155 EP0427182A3 (en) | 1989-11-09 | 1990-11-05 | Deflection yoke |
| US07/825,098 US5204649A (en) | 1989-11-09 | 1992-01-24 | Deflection yoke |
| KR1019920023474A KR930001434B1 (en) | 1989-11-09 | 1992-12-07 | Deflection yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1291518A JPH03152835A (en) | 1989-11-09 | 1989-11-09 | Deflection yoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03152835A true JPH03152835A (en) | 1991-06-28 |
Family
ID=17769933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1291518A Pending JPH03152835A (en) | 1989-11-09 | 1989-11-09 | Deflection yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03152835A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12060660B2 (en) | 2020-02-20 | 2024-08-13 | Sanko Tekstil Isletmeleri Sanayi Ve Ticaret Anonim Sirketi | Winding and twisting device for a ring spinning or ring twisting machine |
-
1989
- 1989-11-09 JP JP1291518A patent/JPH03152835A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12060660B2 (en) | 2020-02-20 | 2024-08-13 | Sanko Tekstil Isletmeleri Sanayi Ve Ticaret Anonim Sirketi | Winding and twisting device for a ring spinning or ring twisting machine |
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