JPH06153213A - Degaussing coil for cathode ray tube - Google Patents
Degaussing coil for cathode ray tubeInfo
- Publication number
- JPH06153213A JPH06153213A JP29140492A JP29140492A JPH06153213A JP H06153213 A JPH06153213 A JP H06153213A JP 29140492 A JP29140492 A JP 29140492A JP 29140492 A JP29140492 A JP 29140492A JP H06153213 A JPH06153213 A JP H06153213A
- Authority
- JP
- Japan
- Prior art keywords
- shape
- ray tube
- cathode ray
- coil
- degaussing coil
- 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
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、陰極線管の消磁コイ
ルに関し、さらに詳しくは、ディスプレイ装置の陰極線
管の外周壁に装着される消磁コイルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a degaussing coil for a cathode ray tube, and more particularly to a degaussing coil mounted on the outer peripheral wall of the cathode ray tube of a display device.
【0002】[0002]
【従来の技術】カラー用の陰極線管内には、シャドウマ
スク,アパーチャグリル等が配置されている。このシャ
ドウマスク,アパーチャグリル等は薄い鋼板で作られて
おり、地磁気等の外部磁界により磁化されやすい。シャ
ドウマスク,アパーチャグリル等が磁化されると、画面
に色ズレ,色ムラを発生し、画像の品質低下をもたら
す。そこで、シャドウマスク,アパーチャグリル等の磁
化を防止するために、消磁コイルが使用されている。2. Description of the Related Art A shadow mask, an aperture grill and the like are arranged in a color cathode ray tube. These shadow masks, aperture grills, etc. are made of thin steel plates and are easily magnetized by an external magnetic field such as geomagnetism. When the shadow mask, aperture grille, etc. are magnetized, color misregistration and color unevenness occur on the screen, resulting in deterioration of image quality. Therefore, a degaussing coil is used to prevent the magnetization of the shadow mask, the aperture grill, and the like.
【0003】図9は、従来の消磁コイルの一例を示す説
明図である。この消磁コイル900は、線材として例え
ば線材径0.8mmのマグネットワイヤを用い、これを
ループ状に所要数だけ巻回して断面円形状のコイル束9
1を形成する。そして、該コイル束91の外周にPVC
粘着絶縁テープ等の絶縁被覆材92をスパイラル状にラ
ップ巻きする。かかる消磁コイル900は、図10に示
すように、陰極線管Bの外周壁BTに装着される。FIG. 9 is an explanatory view showing an example of a conventional degaussing coil. This degaussing coil 900 uses, for example, a magnet wire having a wire diameter of 0.8 mm as a wire rod, and the coil wire 9 having a circular cross section is wound by winding a required number of the wire in a loop shape.
1 is formed. The PVC is attached to the outer circumference of the coil bundle 91.
An insulating coating material 92 such as an adhesive insulating tape is wrapped in a spiral shape. The degaussing coil 900 is attached to the outer peripheral wall BT of the cathode ray tube B as shown in FIG.
【0004】[0004]
【発明が解決しようとする課題】近年、コンパクト化や
デザイン上の関係から、TV受像機等画像表示装置のキ
ャビネットをできるだけ陰極線管に近接することが求め
られている。ところが、陰極線管Bの外周壁BTには消
磁コイルが装着されるため、キャビネットを陰極線管に
近接するためには、消磁コイルをなるべく薄くする必要
がある。しかし、上記従来の消磁コイル900は断面円
形状であるため、薄くならず、図11に示すように、消
磁コイル900の最外周付近900aが外周壁BTから
比較的離れてしまう。このため、キャビネットを陰極線
管Bに近接させにくい問題点がある。また、消磁コイル
900の最外周付近900aによる消磁効果が小さくな
る問題点がある。なお、従来方法で消磁コイルを偏平
(例えば断面楕円状)にすることも考えられるが、この
場合には形崩れを起こし易く、実用的ではない。In recent years, it has been demanded that the cabinet of an image display device such as a TV receiver be as close to the cathode ray tube as possible in view of compactness and design. However, since the degaussing coil is mounted on the outer peripheral wall BT of the cathode ray tube B, it is necessary to make the degaussing coil as thin as possible in order to bring the cabinet close to the cathode ray tube. However, since the conventional degaussing coil 900 has a circular cross section, the degaussing coil 900 does not become thin, and as shown in FIG. 11, the outermost peripheral portion 900a of the degaussing coil 900 is relatively separated from the outer peripheral wall BT. Therefore, there is a problem that it is difficult to bring the cabinet close to the cathode ray tube B. Further, there is a problem that the degaussing effect due to the outermost circumference 900a of the degaussing coil 900 is reduced. Although it is conceivable to make the degaussing coil flat (for example, elliptical in cross section) by the conventional method, in this case, the shape of the degaussing coil is likely to be lost, which is not practical.
【0005】一方、画像表示装置の大画面化,高精度化
により、広範囲にわたるより強い消磁効果を要求されて
いる。これに対応するためには、消磁コイルの形状を複
雑化したり,巻回数を増加したり,線材径を太くする必
要がある。しかし、消磁コイルの形状を複雑化すると、
消磁コイルを陰極線管の外周壁に沿うよう装着する際の
形崩れが増加してしまう問題点があった。また、巻回数
を増加したり,線材径を太くすると、消磁コイルの柔軟
性が低下するため、図12に示すように、陰極線管Bの
外周壁BTから消磁コイル900が浮き上がり、キャビ
ネットを陰極線管Bに近接させる障害となったり,消磁
効果が小さくなってしまう問題点がある。On the other hand, a stronger degaussing effect over a wide range is required due to the increase in screen size and accuracy of the image display device. In order to deal with this, it is necessary to complicate the shape of the degaussing coil, increase the number of windings, and increase the wire diameter. However, if the shape of the degaussing coil is complicated,
There was a problem that the shape of the degaussing coil increased when it was mounted along the outer peripheral wall of the cathode ray tube. Further, as the number of windings is increased or the wire diameter is increased, the flexibility of the degaussing coil decreases, so that as shown in FIG. There is a problem that it becomes an obstacle to be close to B and the demagnetization effect becomes small.
【0006】そこで、この発明の目的は、偏平な形状や
複雑な形状としても形崩れを起こさず,且つ,陰極線管
の外周壁に容易に密着させて装着可能な陰極線管の消磁
コイルを提供することにある。Therefore, an object of the present invention is to provide a degaussing coil for a cathode ray tube which does not lose its shape even if it has a flat shape or a complicated shape and which can be easily attached to the outer peripheral wall of the cathode ray tube. Especially.
【0007】[0007]
【課題を解決するための手段】この発明の陰極線管の消
磁コイルは、陰極線管の外周壁形状に合せた形状および
所定のコイル形状を保持するリブを有する形状保持部材
と、その形状保持部材のリブに沿わせたコイル束と、そ
のコイル束および前記形状保持部材を一体に被覆する絶
縁被覆材とを具備してなることを構成上の特徴とするも
のである。A degaussing coil for a cathode ray tube according to the present invention is a shape-retaining member having a shape adapted to the outer peripheral wall shape of the cathode-ray tube and a rib for retaining a predetermined coil shape, and a shape-retaining member for the shape-retaining member. A structural feature is that it is provided with a coil bundle along the ribs and an insulating coating material that integrally coats the coil bundle and the shape maintaining member.
【0008】[0008]
【作用】この発明の陰極線管の消磁コイルでは、コイル
束を形状保持部材のリブに沿わせた上で絶縁被覆材で一
体に被覆するため、コイル束が所望の形状(例えば、偏
平な形状や複雑な形状)に固定され、形崩れを起こさな
い。また、形状保持部材の形状は、陰極線管の外周壁形
状に合せた形状であるから、陰極線管の外周壁に密着さ
せ容易に装着できる。従って、キャビネットを陰極線管
Bに近接させることが可能となる。また、高い消磁効果
が得られる。In the degaussing coil for a cathode ray tube according to the present invention, since the coil bundle is integrally coated with the insulating coating material along the rib of the shape maintaining member, the coil bundle has a desired shape (for example, a flat shape or a flat shape). It is fixed in a complicated shape and does not lose its shape. Further, since the shape-retaining member has a shape adapted to the shape of the outer peripheral wall of the cathode ray tube, it can be attached easily to the outer peripheral wall of the cathode ray tube. Therefore, the cabinet can be brought close to the cathode ray tube B. In addition, a high degaussing effect can be obtained.
【0009】[0009]
【実施例】以下、図に示す実施例によりこの発明をさら
に詳細に説明する。なお、これによりこの発明が限定さ
れるものではない。The present invention will be described in more detail with reference to the embodiments shown in the drawings. The present invention is not limited to this.
【0010】図1は、この発明の一実施例の陰極線管の
消磁コイル100の一部破断要部斜視図である。1は、
樹脂製の形状保持部材である。2は、内側リブである。
3は、外側リブである。11は、コイル束である。12
は、PVC粘着絶縁テープ等の絶縁被覆材である。FIG. 1 is a partially cutaway perspective view of a degaussing coil 100 of a cathode ray tube according to an embodiment of the present invention. 1 is
It is a resin shape maintaining member. 2 is an inner rib.
3 is an outer rib. 11 is a coil bundle. 12
Is an insulating coating material such as PVC adhesive insulating tape.
【0011】図2,図3に示すように、内側リブ2と外
側リブ3,3は、形状保持部材1の長手方向に交互に設
けられている。これらは、コイル束11の形状を保持す
る機能の外に、形状保持部材1の強度を上げる機能を持
っている。外側リブ3,3の間の底面には、軽量化と材
料節約の観点から、刳貫部4が設けられている。As shown in FIGS. 2 and 3, the inner ribs 2 and the outer ribs 3, 3 are provided alternately in the longitudinal direction of the shape retaining member 1. These have the function of increasing the strength of the shape maintaining member 1 in addition to the function of maintaining the shape of the coil bundle 11. The bottom face between the outer ribs 3, 3 is provided with a hollow portion 4 from the viewpoint of weight saving and material saving.
【0012】形状保持部材1の両端は、陰極線管Bの外
周壁BTに沿うように弧形に曲げられている。また、形
状保持部材1の底面は、外周壁BTに密着可能なように
偏平にされている。形状保持部材1の厚さHは、1mm
程度である。Both ends of the shape-retaining member 1 are bent in an arc shape along the outer peripheral wall BT of the cathode ray tube B. In addition, the bottom surface of the shape-retaining member 1 is flat so that it can be brought into close contact with the outer peripheral wall BT. The thickness H of the shape retaining member 1 is 1 mm
It is a degree.
【0013】図3に示すように、形状保持部材1に沿わ
せる部分以外のコイル束11の部分に、絶縁被覆材12
をスパイラル状にラップ巻きする。次に、形状保持部材
1に沿わせるコイル束11の部分を、形状保持部材1の
内側リブ2と外側リブ3,3に沿わせる。次に、図4に
示すように、形状保持部材1とコイル束11とを一体に
して、絶縁被覆材12をスパイラル状にラップ巻きす
る。これにより、絶縁性が確保される。図5の(a),
(b),(c),(d),(e)に、図4のA−A’断面,B−
B’断面,C−C’断面,D−D’断面,E−E’断面
を示す。以上で、陰極線管の消磁コイル100となる。As shown in FIG. 3, the insulating coating material 12 is provided on the portion of the coil bundle 11 other than the portion along the shape retaining member 1.
Wrap it in a spiral shape. Next, the portion of the coil bundle 11 along the shape-retaining member 1 is along the inner ribs 2 and the outer ribs 3 and 3 of the shape-retaining member 1. Next, as shown in FIG. 4, the shape maintaining member 1 and the coil bundle 11 are integrated, and the insulating coating material 12 is spirally wrapped. This ensures insulation. 5 (a),
4 (b), (c), (d), and (e), AA 'cross section of FIG. 4, B-
The B'section, CC 'section, DD' section, and EE 'section are shown. Thus, the degaussing coil 100 of the cathode ray tube is completed.
【0014】この陰極線管の消磁コイル100は、図6
に示すように、陰極線管Bの外周壁BTに装着される。
形状保持部材1の底面形状が偏平であり,また両端が弧
形にされているため、図7に示すように、消磁コイル1
00は、陰極線管Bの外周壁BTに密着して装着可能で
ある。また、図8に示すように、コイル束11が形崩れ
せず,所定の形状のまま陰極線管Bの外周壁BTに密着
する。The degaussing coil 100 of this cathode ray tube is shown in FIG.
As shown in FIG. 3, the cathode ray tube B is mounted on the outer peripheral wall BT.
Since the bottom shape of the shape-retaining member 1 is flat and both ends are arcuate, as shown in FIG.
00 can be mounted in close contact with the outer peripheral wall BT of the cathode ray tube B. Further, as shown in FIG. 8, the coil bundle 11 does not lose its shape and adheres to the outer peripheral wall BT of the cathode ray tube B in a predetermined shape.
【0015】[0015]
【発明の効果】この発明によれば、偏平なコイル形状や
複雑なコイル形状を保持したまま、消磁コイルを陰極線
管の外周壁に密着して装着させることができる。この結
果、陰極線管との密着度が高まり広範囲にわたり強い消
磁効果を得ることができる。また、キャビネットを陰極
線管に近接させることが可能となり、TV受像機セット
等がコンパクト化される。さらに、陰極線管への取り付
けが容易となって、取り付けの自動化可能な消磁コイル
が得られる。According to the present invention, the degaussing coil can be closely attached to the outer peripheral wall of the cathode ray tube while maintaining the flat coil shape and the complicated coil shape. As a result, the degree of adhesion with the cathode ray tube is increased, and a strong degaussing effect can be obtained over a wide range. Further, the cabinet can be brought close to the cathode ray tube, and the TV set or the like can be made compact. Furthermore, the degaussing coil can be easily attached to the cathode ray tube and the degaussing coil can be attached automatically.
【図1】この発明の一実施例である消磁コイルの一部破
断要部斜視図である。FIG. 1 is a partially cutaway perspective view of a degaussing coil according to an embodiment of the present invention.
【図2】図1の消磁コイルに使用する形状保持部材の端
部斜視図である。2 is an end perspective view of a shape holding member used for the degaussing coil of FIG. 1. FIG.
【図3】図1の消磁コイルの組立方式を示す説明図であ
る。FIG. 3 is an explanatory view showing an assembling method of the degaussing coil of FIG. 1.
【図4】図1の消磁コイルの斜視図である。FIG. 4 is a perspective view of the degaussing coil of FIG. 1.
【図5】図1の消磁コイルの各部断面図である。5 is a sectional view of each part of the degaussing coil shown in FIG. 1. FIG.
【図6】図1の消磁コイルと陰極線管の取付状態を示す
斜視図である。FIG. 6 is a perspective view showing a mounting state of the degaussing coil and the cathode ray tube of FIG.
【図7】図1の消磁コイルと陰極線管の取付状態を示す
背面図である。FIG. 7 is a rear view showing a mounting state of the degaussing coil and the cathode ray tube of FIG.
【図8】図1の消磁コイルと陰極線管の取付状態におけ
る要部断面図である。FIG. 8 is a cross-sectional view of essential parts in a state where the degaussing coil and the cathode ray tube of FIG. 1 are attached.
【図9】従来の消磁コイルの一例を示す斜視図である。FIG. 9 is a perspective view showing an example of a conventional degaussing coil.
【図10】図9の消磁コイルと陰極線管の取付状態を示
す斜視図である。10 is a perspective view showing a mounting state of the degaussing coil and the cathode ray tube of FIG. 9. FIG.
【図11】図9の消磁コイルと陰極線管の取付状態にお
ける要部断面図である。FIG. 11 is a cross-sectional view of essential parts in a state where the degaussing coil and the cathode ray tube in FIG. 9 are attached.
【図12】図9の消磁コイルと陰極線管の取付状態を示
す背面図である。FIG. 12 is a rear view showing a mounting state of the degaussing coil and the cathode ray tube of FIG.
100 消磁コイル 1 形状保持部材 2 内側リブ 3 外側リブ 4 刳貫部 11 コイル束 12 絶縁被覆材 B 陰極線管 BT 外周壁 100 degaussing coil 1 shape retention member 2 inner rib 3 outer rib 4 hollow part 11 coil bundle 12 insulating coating material B cathode ray tube BT outer peripheral wall
Claims (1)
び所定のコイル形状を保持するリブを有する形状保持部
材と、その形状保持部材のリブに沿わせたコイル束と、
そのコイル束および前記形状保持部材を一体に被覆する
絶縁被覆材とを具備してなることを特徴とする陰極線管
の消磁コイル。1. A shape-retaining member having a rib for holding a shape conforming to the shape of the outer peripheral wall of a cathode ray tube and a predetermined coil shape, and a coil bundle along the rib of the shape-retaining member.
A degaussing coil for a cathode ray tube comprising the coil bundle and an insulating coating material that integrally covers the shape retaining member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29140492A JPH06153213A (en) | 1992-10-29 | 1992-10-29 | Degaussing coil for cathode ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29140492A JPH06153213A (en) | 1992-10-29 | 1992-10-29 | Degaussing coil for cathode ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06153213A true JPH06153213A (en) | 1994-05-31 |
Family
ID=17768460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP29140492A Pending JPH06153213A (en) | 1992-10-29 | 1992-10-29 | Degaussing coil for cathode ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06153213A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4861254A (en) * | 1987-04-16 | 1989-08-29 | Shinkoh Sellbic Co., Ltd. | Cassette-type molding die |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05316527A (en) * | 1991-10-09 | 1993-11-26 | Sony Corp | Degaussing coil for cathode ray tube |
-
1992
- 1992-10-29 JP JP29140492A patent/JPH06153213A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05316527A (en) * | 1991-10-09 | 1993-11-26 | Sony Corp | Degaussing coil for cathode ray tube |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4861254A (en) * | 1987-04-16 | 1989-08-29 | Shinkoh Sellbic Co., Ltd. | Cassette-type molding die |
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