KR950003479Y1 - Coil for d. y. - Google Patents
Coil for d. y. Download PDFInfo
- Publication number
- KR950003479Y1 KR950003479Y1 KR2019890018051U KR890018051U KR950003479Y1 KR 950003479 Y1 KR950003479 Y1 KR 950003479Y1 KR 2019890018051 U KR2019890018051 U KR 2019890018051U KR 890018051 U KR890018051 U KR 890018051U KR 950003479 Y1 KR950003479 Y1 KR 950003479Y1
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- Prior art keywords
- coil
- deflection yoke
- magnetic field
- axis
- deflection
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
- H01J29/76—Deflecting by magnetic fields only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
- H01J2229/0015—Preventing or cancelling fields leaving the enclosure
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Details Of Television Scanning (AREA)
Abstract
내용 없음.No content.
Description
제1도는 브라운관에 편향요크가 장착된 상태의 사시도.1 is a perspective view of a state in which a deflection yoke is mounted on a CRT.
제2도는 불요복사 방지용 코일이 부착되지 않은 편향요크에서 발생되는 자계의 분포를 나타낸 자계 분포도.2 is a magnetic field distribution diagram showing a distribution of magnetic fields generated in a deflection yoke without an unnecessary radiation preventing coil.
제3도는 종래의 불요복사 방지용 코일이 부착된 편향요크에서 발생되는 자계의 상호 작용도.3 is an interaction diagram of a magnetic field generated in a deflection yoke with a conventional anti-radiation coil.
제4도는 본 고안 불요복사 방지용 코일이 부착된 편향요크에서 발생되는 자계의 상호 작용도이다.4 is an interaction diagram of a magnetic field generated in a deflection yoke to which an unnecessary radiation preventing coil of the present invention is attached.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 편향요크 2 : 브라운관1: deflection yoke 2: CRT
3 : 수직 편향코일 4 : “Ⅰ”형 코어3: vertical deflection coil 4: “Ⅰ” type core
5,11 : 코일 6,10 : 불요복사 방지용 코일5,11 Coil 6,10 Coil for preventing unnecessary radiation
12 : “ㄷ”형 코어12: “ㄷ” type core
본 고안은 불요복사 방지용 코일(Canceller Coil)이 부착된 편향요크에 관한 것으로서, 특히 편향요크의 x축상에 부착하여 y축 방향으로의 감쇄자계가 발생되도록 한 불요복사 방지용 코일에 관한 것이다.The present invention relates to a deflection yoke having an unnecessary radiation prevention coil (Canceller Coil), and more particularly, to an undesired radiation prevention coil that is attached to the x-axis of the deflection yoke to generate attenuation magnetic field in the y-axis direction.
일반적으로, 편향요크(1)는 제1도에 도시된 바와같이 텔레비젼의 브라운관(CRT) (2) 또는 컴퓨터의 모니터등에 장착되는 것으로, 상기 편향요크(1)의 내, 외측에 권선된 수평 및 수직편향코일(3)로 톱니파 펄스가 인가되면 플레밍의 왼손법칙에 의하여 자계가 발생되므로 전자총에서 방사되는 전자빔을 편향시켜 화면상에 위치결정 시키게 되는 것이다.Generally, the deflection yoke 1 is mounted on a CRT 2 of a television or a monitor of a computer, as shown in FIG. 1. The deflection yoke 1 is wound horizontally in and out of the deflection yoke 1; When a sawtooth pulse is applied to the vertical deflection coil 3, a magnetic field is generated by Fleming's left-hand law, which deflects the electron beam emitted from the electron gun and positions it on the screen.
그러나 브라운관 밖으로 편향요크의 수직 및 수평 편향코일에 의해 발생되는 초저주파수(Very Low Frequency) (약 10KHZ∼300KHZ)의 누설자계가 누출되어 인체에 악영향을 줄 가능성이 있어 상기 초저주파수VLF)가 브라운관 밖으로 누설되는 것을 방지하기 위해 불요복사 방지용 코일(Canceller Coil)을 편향요크에 설치하였다.However, leakage of magnetic field of very low frequency (approximately 10KHZ ~ 300KHZ) caused by vertical and horizontal deflection coils of deflection yoke out of the CRT may adversely affect the human body. In order to prevent leakage, an unnecessary radiation prevention coil (Canceller Coil) was installed in the deflection yoke.
그런데 브라운관에서 발생되는 누설자계중 편향요크에서 방사되는 것은 제2도에 나타낸 바와같이, 수평 편향코일이 전자빔을 좌, 우로 편향하기 위한 편항자계의 누설자계로 브라운관(CRT)의 중앙축(Z)전면의 30cm와 50cm등에서 현 레벨(Level)의 1/5∼1/10 정도 낮추어줄 필요가 있다.However, among the leaked magnetic fields generated in the CRT, the radiation from the deflection yoke is a leakage magnetic field of the deflection magnetic field for horizontal deflection coils deflecting the electron beam to the left and right as shown in FIG. It is necessary to lower 1/5 to 1/10 of the current level at 30cm and 50cm on the front.
따라서, 종래에는 제3도에 나타낸 바와같이, 불요복사 방지용 코일(6)을 편향요크(1)의 y축상의 양쪽에 설치한 구성으로 되어 있다.Therefore, conventionally, as shown in FIG. 3, the unnecessary radiation prevention coil 6 is provided on both sides of the deflection yoke 1 on the y-axis.
이와같은 구성은 제3도에서와 같이 불요복사 방지용 코일(6)에서 발생하는 자계가 브라운관 전면의 y축으로 발생하는 누설자계를 감쇄시킴으로서 누설자계가 당기어져 누설자계의 영향범위가 줄어들게 되는 것이다.Such a configuration is such that the magnetic field generated by the unnecessary radiation prevention coil 6 attenuates the leakage magnetic field generated on the y-axis of the front side of the CRT as shown in FIG. 3 so that the leakage magnetic field is pulled down and the influence range of the leakage magnetic field is reduced.
그러나, 제품의 콤펙트(compact)화 및 편향요크의 화면 특성 향상을 위한 부가장치의 증가에 따라 터미널 보드의 크기가 증가되므로 브라운관의 y축 방향에는 불요복사 방지용 코일 부착할 공간여유가 없어 제품 조립에 어려움이 있어 제품 케이스 안쪽면에 닿게되면 특성에도 영향을 줄 염려가 있는 것이다.However, since the size of the terminal board increases with the increase of the additional device for compacting the product and improving the screen characteristics of the deflection yoke, there is no space for attaching the coil to prevent unnecessary radiation in the y-axis direction of the CRT. If there is a difficulty, the inner surface of the product case may affect the characteristics.
본 고안의 상기와 같은 문제점을 해결하기 위한 것으로, 본 고안의 목적을 불요복사 방지용 코일을 편향요크의 x축상에 설치하므로서 제품의 콤펙트화가 가능하고 편향요크의 y축상에 터미널 보드를 부착할 수 있는 충분한 공간을 제공할 수 있도록 한것에 있다.In order to solve the above problems of the present invention, the purpose of the present invention is to install a coil for preventing radiation on the x-axis of the deflection yoke, which makes it possible to compact the product and to attach a terminal board on the y-axis of the deflection yoke. To provide enough space.
상기의 목적을 달성하기 위한 본 고안의 특징은, CRT에 장착된 편향요크에서 발생되는 누설자계를 감쇄하기 위한 불요복사 방지용 코일을 편향요크에 설치함에 있어서 “ㄷ”형 코어에 수평편향코일과 직렬로 연결되는 코일이 감겨진 불요복사 방지용 코일을 편향요크의 x축상에 설치하여 y축 방향의 감쇄자계가 발생되게 한 것이다.In order to achieve the above object, a feature of the present invention is to install an anti-radiation coil for attenuating the leakage magnetic field generated by a deflection yoke mounted on a CRT. The anti-radiation coil with the coil connected to the coil is installed on the x-axis of the deflection yoke to generate the attenuation magnetic field in the y-axis direction.
이하, 본 고안의 구성을 첨부한 도면에 의하여 상세히 설명한다.Hereinafter, the configuration of the present invention will be described in detail with the accompanying drawings.
제1도는 편향요크(1)가 브라운관(2)에 장착된 상태의 사시도이고, 제4도는 브라운관(2)에 장착된 편향요크(1)에 본 고안의 불요복사방지용 코일(10)이 설치된 정면도이다.1 is a perspective view of a state in which the deflection yoke 1 is mounted on the CRT 2, and FIG. 4 is a front view in which the unnecessary radiation preventing coil 10 of the present invention is installed on the deflection yoke 1 mounted on the CRT 2. to be.
여기서 본 고안은 브라운관(2)에 장착된 편향코일(1)의 x축상에 불요복사방지용 코일(10)이 양측에 설치되고, 상기 불요복사방지용 코일(10)은 편향요크(1)의 수평편향코일과 직렬로 연결된 코일(11)이 “ㄷ”형 코어(12)에 권선된 구성으로 되어 있다.Here, the present invention is installed on both sides of the anti-radiation coil 10 on the x-axis of the deflection coil (1) mounted on the Brown tube (2), the anti-radiation coil 10 is a horizontal deflection of the deflection yoke (1) The coil 11 connected in series with the coil has a configuration wound around the “c” type core 12.
이와같은 구성은 본 고안은 제4도에 나타낸 바와같이, 편향요크(1) x축상에 설치된 양쪽의 불요복사방지용 코일(10)이 “ㄷ”형 코어(12)로 형성되어 있기 때문에 이 “ㄷ”형 코어(12)에 감긴 코일(11)에 감긴 코일(11)에 의해 y축의 아래방향에서 위방향으로 자계가 발생하게 되는 것이고, 브라운관(2)의 전면에서 y축의 위에서 아래방향으로 발생하는 누설자계와 상호 감쇄되므로, 종래의 편향요크(1) y축상에 “I”형 코어(6)를 설치한것과 동일한 효과를 발휘할 수 있는 것이다.Such a constitution is that the present invention, as shown in FIG. 4, because the unnecessary radiation preventing coils 10 provided on the x-axis of the deflection yoke 1 are formed of a “c” type core 12. The magnetic field is generated from the downward direction of the y-axis by the coil 11 wound on the coil 11 wound on the ”type core 12, and generated downward from the y-axis at the front of the CRT. Since the leakage magnetic field is attenuated mutually, the same effect as that of the "I" type core 6 is provided on the y-axis of the conventional deflection yoke 1 is achieved.
따라서, 본 고안은 편향요크의 y축 보다는 여유가 있는 x축방향에 불요복사방지용 코일을 설치하는 것이 가능하므로서 제품의 콤펙트화가 이루워질수 있는 것이고, “ㄷ”형 코어를 사용하므로서 주방향은 브라운관의 y-z평면을 기준으로하여 관축방향으로 약60°정도 기울일수 있는 효과가 있는 것이다.Therefore, the present invention enables the installation of an unnecessary radiation prevention coil in the x-axis direction with a margin rather than the y-axis of the deflection yoke, so that the product can be made compact. It is effective to tilt about 60 ° in the direction of the tube axis based on the yz plane of.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890018051U KR950003479Y1 (en) | 1989-11-30 | 1989-11-30 | Coil for d. y. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890018051U KR950003479Y1 (en) | 1989-11-30 | 1989-11-30 | Coil for d. y. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910009920U KR910009920U (en) | 1991-06-29 |
| KR950003479Y1 true KR950003479Y1 (en) | 1995-05-02 |
Family
ID=19292618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019890018051U KR950003479Y1 (en) | 1989-11-30 | 1989-11-30 | Coil for d. y. |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950003479Y1 (en) |
-
1989
- 1989-11-30 KR KR2019890018051U patent/KR950003479Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR910009920U (en) | 1991-06-29 |
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