KR920003286Y1 - Inner-shield of crt - Google Patents

Inner-shield of crt Download PDF

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Publication number
KR920003286Y1
KR920003286Y1 KR2019900009718U KR900009718U KR920003286Y1 KR 920003286 Y1 KR920003286 Y1 KR 920003286Y1 KR 2019900009718 U KR2019900009718 U KR 2019900009718U KR 900009718 U KR900009718 U KR 900009718U KR 920003286 Y1 KR920003286 Y1 KR 920003286Y1
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South Korea
Prior art keywords
inner shield
coupling
shield
cathode ray
ray tube
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KR2019900009718U
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Korean (ko)
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KR920003363U (en
Inventor
엄두섭
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삼성전관 주식회사
김정배
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Priority to KR2019900009718U priority Critical patent/KR920003286Y1/en
Publication of KR920003363U publication Critical patent/KR920003363U/en
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Publication of KR920003286Y1 publication Critical patent/KR920003286Y1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06Screens for shielding; Masks interposed in the electron stream
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007Elimination of unwanted or stray electromagnetic effects
    • H01J2229/003Preventing or cancelling fields entering the enclosure

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  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

내용 없음No content

Description

음극선관용 인너실드Inner shield for cathode ray tube

제1도는 종래 인너실드를 보인 사시도.1 is a perspective view showing a conventional inner shield.

제2도는 제1도에 도시된 인너실드 결합구조를 보인 것으로서, 제2a도는 결합전의 상태이고, 제2b도는 결합후의 상태이며, 제2c도는 결합단면도이다.2 is a view showing the inner shield coupling structure shown in FIG. 1, in which FIG. 2a is a state before coupling, FIG. 2b is a state after coupling, and FIG.

제3도는 본 고안에 따른 인너실드의 결합구조를 보인 일부전개 사시도.Figure 3 is a partially developed perspective view showing a coupling structure of the inner shield according to the present invention.

제4도는 제3도의 결합상태를 나타낸 것으로, 제4a도는 결합전 상태이고, 제4b도는 결합후 상태이며, 제4c도는 결합단면도이다Figure 4 shows the coupling state of Figure 3, Figure 4a is a pre-engagement state, Figure 4b is a post-engagement state, Figure 4c is a coupling cross-sectional view.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 제1인너실드 1a : 랜싱(lansing)부1: first inner shield 1a: lansing part

2 : 제2인너실드 2a : 결합편2: second inner shield 2a: bonding piece

본 고안은 음극선관용 인너실드에 관한 것으로서 더 상세하게는 2분할된 인너실드의 결합구조를 개량한 것에 관한 것이다.The present invention relates to an inner shield for a cathode ray tube, and more particularly, to an improvement in a coupling structure of an inner shield divided into two.

일반적으로 음극선관용 인너실드는 전자빔의 난반사 및 외부지자계 차폐효과를 얻기 위하여 사용되는 것으로 새도우마스크의 지지체이니 프레임의 후면에 체결용 클립으로 장착하여 사용한다.In general, an inner shield for cathode ray tubes is used to obtain diffuse reflection and shielding of an external geomagnetic field of an electron beam, and is used as a fastening clip on a rear surface of a frame because it is a support of a shadow mask.

이러한 인너실드는 대형 음극선관의 경우 2분할하여 제작한 다음, 이들을 일체로 결합하여 사용하는데 제1도 및 제2도에 종래의 인너실드가 도시되고 있다.This inner shield is manufactured by dividing the case of a large cathode ray tube into two parts, and then using the inner shield in combination. FIG. 1 and 2 show a conventional inner shield.

이는 돌출편(12)이 서로 대향되도록 형성된 대략 +자형상의 제1결합편(11)과, 상기 제1결합편(11)의 돌출편(12)이 결합되는 인입홈(14)이 형성된 제2결합편(13)이 제1, 제2인너실드(10), (20)의 결합부위에 교호적으로 복수개 설치되어 있다.This is a second + having a substantially + -shaped first coupling piece 11 formed so that the protruding pieces 12 are opposed to each other, and an inlet groove 14 to which the protruding pieces 12 of the first coupling piece 11 are coupled. A plurality of coupling pieces 13 are alternately provided at the coupling portions of the first and second inner shields 10 and 20.

이와 같이 구성된 종래의 음극선관용 인너실드는 제1인너실드(10)에 형성된 제1결합편(11)의 돌출부(12)와 제2결합편(13)의 인입홈(14)에, 제2인너실드(20)에 형성된 제2결합편(13)의 인입홈(14)과 제1결합편(11)의 돌출부(12)를 중첩시킨 다음 상기 돌출부(12)를 각각 절곡하여 상기 인입홈(14)에 결합시킴으로써, 제1, 제2인너실드(10), (20)를 일체로 결합하는 것이다.A conventional inner shield for the cathode ray tube configured as described above has a second inner portion in the projection portion 12 of the first coupling piece 11 formed in the first inner shield 10 and the inlet groove 14 of the second coupling piece 13. The inlet groove 14 of the second coupling piece 13 formed in the shield 20 overlaps the protrusion 12 of the first coupling piece 11, and then the protrusions 12 are bent, respectively, so that the inlet groove 14 is overlapped. ), The first and second inner shields 10 and 20 are integrally combined.

그러나 이와 같은 종래 음극선관용 인너실드는 인입홈에 결합되는 돌출편의 결합상태가 견고하지 않아, 즉, 인입홈에 돌출편을 절곡하여 결합하는 과정에서 돌출편의 스프링 백(spring-back)현상이 발생하여 제2c도에 도시한 바와 같이 틈새가 생기게 됨에 따라 외부의 충격에 의해 인너실드의 떨림현상이 발생된다. 이러한 떨림형상은 결합편에 의한 결합부위의 간격이 큰 대형 기종의 경우 더욱 심각하게 된다. 이와 같은 인너실드의 떨림현상은 결합편에 의한 결합부위의 간격이 큰 대형 기종의 경우 더욱 심각하게 된다. 이와 같은 인너실드의 떨림현상은 전자빔이 통과하는 인너실드의 개구부폭의 치수변화를 가져와 지자계 차폐효과를 떨어뜨리게 되며 전자빔의 궤도에 영향을 미쳐 선명한 화상을 얻을수 없는 문제점이 있다.However, such a conventional cathode ray tube inner shield is not firmly coupled to the protruding piece coupled to the inlet groove, that is, spring-back phenomenon of the protruding piece occurs in the process of bending and combining the protruding piece into the inlet groove. As shown in FIG. 2C, as the gap is formed, the inner shield shakes due to external impact. This shaking shape becomes more serious in the case of large models having a large gap between the coupling sites by the coupling pieces. The vibration of the inner shield is more serious in the case of large models having a large gap between the coupling portions by the coupling pieces. The vibration of the inner shield causes a change in the dimension of the opening width of the inner shield through which the electron beam passes, thereby lowering the shielding effect of the geomagnetic field, and affecting the trajectory of the electron beam, thereby preventing a clear image from being obtained.

본 고안은 상술한 바와 같은 문제점을 감안하여 안출된 것으로서, 견고한 고정결합이 가능하여 떨림으로 인한 개구부폭의 치수변화를 극소화 할수 있는 음극선관용 인너실드를 제공함에 그 목적이 있다.The present invention has been made in view of the above-described problems, and its object is to provide an inner shield for cathode ray tubes that can be firmly fixed and minimize the dimensional change of the opening width due to shaking.

상기 목적을 달성하기 위하여 본 고안에 따른 음극선관용 인너실드는, 제1인너실드와 제2인너실드로 2분할 형성된 음극선관용 인너실드에 있어서, 상기 제1인너실드에 적어도 하나 이상의 랜싱부를 형성하고 상기 제2인너실드의 상기 랜싱부에 대앙되는 위치에 결합편을 형성하여 상기 랜싱부에 상기 결합편을 결합하고 그 선단을 절곡하여 상기 제1, 제2인너실드를 일체로 결합하도록 한점에 그 특징이 있다.In order to achieve the above object, an inner shield for a cathode ray tube according to the present invention includes an inner shield for a cathode ray tube formed by splitting a second inner shield into a first inner shield and a second inner shield, and forming at least one lancing on the first inner shield and A coupling piece is formed at a position opposite to the lancing portion of the second inner shield to couple the coupling piece to the lancing portion and bend its tip to integrally couple the first and second inner shields. There is this.

이하 첨부도면을 참조하여 본 고안에 따른 음극선관용 인너실드의 바람직한 일 실시예를 상세히 설명한다.Hereinafter, a preferred embodiment of the inner shield for cathode ray tube according to the present invention with reference to the accompanying drawings will be described in detail.

제3도 및 제4도에 도시된 바와 같이 본 고안에 따른 음극선관용 인너실드는 제1인너실드(1)의 결합부 가장자리에 랜싱부(1a)가 복수 형성되어 있다. 그리고 제2인너실드(2)에는 상기 랜싱부(1a)에 대응되느 위치에 결합편(2a)이 형성되어 있다. 여기에서 상기 랜싱부(1a)와 결합편(2a)이 제1, 제2인너실드(1), (2)의 결합부위에 교호적으로 형성되는 것도 바람직하다.As shown in FIGS. 3 and 4, the inner shield for the cathode ray tube according to the present invention has a plurality of lancing portions 1a formed at the edge of the coupling portion of the first inner shield 1. In the second inner shield 2, a coupling piece 2a is formed at a position corresponding to the lancing portion 1a. Here, it is also preferable that the lancing portion 1a and the coupling piece 2a are alternately formed at the coupling portions of the first and second inner shields 1 and 2.

이와같이 구성된 본 고안에 따른 음극선관용 인너실드는 제1인너실드(1)의 랜싱부(1a)에 제2인너실드(2)의 결합편(2a)을 삽입한 다음 그 선단을 삽입방향과 반대방향으로 절곡하여 제1, 제2인너실드(1), (2)를 일체로 고정하게 된다. 이때 제2인너실드(2)의 결합부 측면이 제1인너실드(1)의 랜싱부(1a)이 측면에 지지된 상태가 되므로 제1, 제2인너실드(1), (2)의 결합상태가 견고하게되어 외부의 충격으로 인해 유동이 발생되지 않게된다.The inner shield for the cathode ray tube according to the present invention configured as described above inserts the engaging piece 2a of the second inner shield 2 into the lancing portion 1a of the first inner shield 1, and then the tip thereof is opposite to the insertion direction. Bending is performed to fix the first and second inner shields 1 and 2 integrally. At this time, the coupling part side of the second inner shield 2 is in a state in which the lancing part 1a of the first inner shield 1 is supported on the side surface, so that the first and second inner shields 1 and 2 are coupled to each other. The state is firm and no flow is generated due to external shocks.

이상과 같은 본 고안에 따른 음극선과용 인너실드에 의하면 제1, 제2인너실드의 결합상태가 견고하여 외부의 충격으로 인해 유동이 생기지 않게 됨으로써, 인너실드의 떨림으로 인한 개구부폭의 치수변화가 발생되지 않게 된다.According to the cathode ray and inner shield according to the present invention as described above, since the combined state of the first and second inner shields is firm, flow does not occur due to an external impact, and thus the dimensional change of the opening width is generated due to the vibration of the inner shield. Will not be.

Claims (1)

제1인너실드와 제2인너실드로 2분할 형성된 음극선관용 인너실드에 있어서,상기 제1인너실드(1)에 적어도 하나 이상의 랜싱부(1a)를 형성하고, 상기 제2인너실드(2)의 상기 랜싱부(1a)에 대응되는 위치에 결합편(2a)을 형성하여 상기 랜싱부(1a)에 상기 결합하고 그 선단을 절곡하여 상기 제1, 제2인너실드(1), (2)를 일체로 결합하도록 한 것을 특징으로 하는 음극선관용 인너실드.In the inner shield for the cathode ray tube formed by dividing the first inner shield and the second inner shield in two, at least one lancing portion (1a) is formed on the first inner shield (1), the second inner shield (2) A coupling piece 2a is formed at a position corresponding to the lancing portion 1a, the coupling piece 2a is coupled to the lancing portion 1a, and the tip is bent to form the first and second inner shields 1 and 2. Inner shield for cathode ray tube, characterized in that to be integrally coupled.
KR2019900009718U 1990-07-03 1990-07-03 Inner-shield of crt KR920003286Y1 (en)

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KR2019900009718U KR920003286Y1 (en) 1990-07-03 1990-07-03 Inner-shield of crt

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KR2019900009718U KR920003286Y1 (en) 1990-07-03 1990-07-03 Inner-shield of crt

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KR920003286Y1 true KR920003286Y1 (en) 1992-05-25

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