KR100229730B1 - Welding structure of rail for flat cathode ray tube - Google Patents

Welding structure of rail for flat cathode ray tube Download PDF

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Publication number
KR100229730B1
KR100229730B1 KR1019970047249A KR19970047249A KR100229730B1 KR 100229730 B1 KR100229730 B1 KR 100229730B1 KR 1019970047249 A KR1019970047249 A KR 1019970047249A KR 19970047249 A KR19970047249 A KR 19970047249A KR 100229730 B1 KR100229730 B1 KR 100229730B1
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South Korea
Prior art keywords
rail
end cap
cathode ray
ray tube
welded
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KR1019970047249A
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Korean (ko)
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KR19990025572A (en
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박상윤
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구자홍
엘지전자주식회사
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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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H01J29/073—Mounting arrangements associated with shadow masks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0716—Mounting arrangements of aperture plate to frame or vessel

Abstract

본 발명은 평면음극선관용 레일의 접합구조에 관한 것으로서, 특히 레일과 엔드캡 간의 밀착성을 향상시켜 이물발생을 방지하고, 이를 통해 진공불량 및 방전불량을 감소하는 데 그 목적이 있다.The present invention relates to a joint structure of a rail for a planar cathode ray tube, and in particular, to improve adhesion between the rail and the end cap to prevent foreign matters, and to reduce vacuum and discharge failures.

이러한 목적을 달성하기 위해 본 발명은 인장된 섀도우마스크를 패널면과 일정간격을 유지하면서 지지하는 다수의 레일과, 각각의 레일을 서로 접합시켜 레일결합체로 형성하는 엔드캡을 구비하며, 상기 엔드캡에는 본체와, 각각의 레일을 서로 연결시키는 용접부가 구비된 평면음극선관에 있어서, 상기 엔드캡의 용접부는 절곡에 의해 형성되는 레일의 각 면중 어느 일면에만 접합되는 것이다.In order to achieve the above object, the present invention includes a plurality of rails supporting the tensioned shadow mask while maintaining a predetermined distance from the panel surface, and end caps joined to each other to form a rail assembly. In the planar cathode ray tube provided with a main body and a welded portion connecting each rail to each other, the welded portion of the end cap is joined to only one surface of each surface of the rail formed by bending.

Description

평면음극선관용 레일의 접합구조Joint structure of rail for flat cathode ray tube

본 발명은 평면음극선관용 레일의 접합구조에 관한 것으로서, 특히 4개의 분리된 레일을 하나의 레일결합체로 연결하는 엔드캡의 구조 및 엔드캡과 각 레일간의 접합구조에 관한 것이다.The present invention relates to a joint structure of a rail for a planar cathode ray tube, and more particularly, to a structure of an end cap connecting four separate rails to one rail assembly and a joint structure between the end cap and each rail.

일반적인 평면음극선관은 도 1 에 도시된 바와 같이, 내측면에 R, G, B의 형광막이 도포되어 있고, 전면부에는 방폭유리(1)가 고정되어 있는 패널(2)과, 상기 패널(2)의 후단에 융착되어 내부를 진공상태로 유지하는 펀넬(3)과, 상기 펀넬(3)의 네크부(4)에 봉입되어 전자빔(5)을 방사하는 전자총(6)과, 상기 전자총(6)으로부터 방사된 전자빔(5)의 색선별 기능을 가진 섀도우마스크(7)와, 상기 섀도우마스크(7)가 패널(2) 내면과 일정한 간격을 유지하도록 섀도우마스크(7)를 지지하는 레일(8)과, 외부자계를 차폐하는 자기쉴드(9)로 구성되어 있다.As shown in FIG. 1, a general planar cathode ray tube is coated with a fluorescent film of R, G, and B on the inner side, and an explosion-proof glass 1 is fixed on the front side thereof, and the panel 2. A funnel (3) fused to the rear end to maintain the inside in a vacuum state, an electron gun (6) encapsulated in the neck portion (4) of the funnel (3), and radiating an electron beam (5), and the electron gun (6) A shadow mask 7 having a color discriminating function of the electron beam 5 emitted from the light beam, and a rail 8 supporting the shadow mask 7 so that the shadow mask 7 is kept at a constant distance from the inner surface of the panel 2. ) And a magnetic shield 9 that shields an external magnetic field.

그리고, 상기 레일(8)은 프리트글라스(10)에 의해 패널(2) 내면에 융착/고정되어 있으며, 도 2 와 같이 4개의 분리된 레일(8)이 엔드캡(11)에 의해 하나의 레일결합체로 구성되어 있다.In addition, the rail 8 is fused / fixed to the inner surface of the panel 2 by the fritted glass 10, and as shown in FIG. 2, four separate rails 8 are connected to one rail by the end cap 11. It consists of a combination.

상기 엔드캡(11)은 프리트글라스의 누설을 막아주는 본체(11a)와, 각각의 레일(8)에 용접되는 "ㄱ"형의 용접부(11b)로 구성되어 있다.The end cap 11 is composed of a main body 11a which prevents the leakage of fritted glass, and a welding portion 11b of “a” type welded to each rail 8.

이와 같이 구성된 평면음극선관에 전원이 인가되면 펀넬(3)의 네크부(4)에 봉입된 전자총(6)으로부터 전자빔(5)이 방사되고, 이 전자빔(5)은 섀도우마스크(7)를 통과하면서 색선별이 이루어진 상태에서 패널(2)의 내측면에 도포된 형광막을 타격하여 화상이 재현된다.When power is applied to the planar cathode ray tube configured as described above, the electron beam 5 is emitted from the electron gun 6 enclosed in the neck portion 4 of the funnel 3, and the electron beam 5 passes through the shadow mask 7. While hitting the fluorescent film applied to the inner surface of the panel 2 in the state of color selection, the image is reproduced.

이때, 상기 섀도우마스크(7)를 지지하는 레일(8)은 엔드캡(11)에 의해 하나의 레일결합체로 형성되는데, 상기 엔드캡(11)의 용접부(11b)가 각각의 레일(8) 끝단부를 연결시켜 주는 것이다.At this time, the rail 8 supporting the shadow mask 7 is formed as one rail assembly by the end cap 11, the welding portion (11b) of the end cap 11 is the end of each rail (8) It connects wealth.

그러나 이러한 종래의 레일 접합 구조는 각각의 레일을 엔드캡을 이용하여 레일결합체를 만들기 위한 용접공정을 실시함에 있어, 옆면과 윗면을 동시에 용접해야 하므로 용접공정이 복잡해지고, 엔드캡의 두께가 레일의 두께 보다 얇기 때문에 절곡부의 라운드가 달라지며, 이로 인해 용접 후 발생하는 틈새로 패널 내면에 형광막을 형성하기 위한 형광체 도포시 형광체, 흑연 등의 약품이 스며들었다가 음극선관 동작중에 누설되어 진공 불량 및 방전 불량을 일으키는 문제점이 있었다.However, in the conventional rail joint structure, each rail is welded to make a rail assembly by using an end cap, and the side and top surfaces must be welded at the same time, which makes the welding process complicated and the thickness of the end cap is increased. Because it is thinner than the thickness, the rounding of the bent portion is different. As a result, when the phosphor is applied to form the phosphor film on the inner surface of the panel due to the gap generated after welding, chemicals such as phosphor and graphite are infiltrated and leak during cathode ray tube operation, resulting in poor vacuum and discharge. There was a problem causing badness.

본 발명은 이러한 점을 감안하여 엔드캡의 용접부를 절곡된 레일의 각면중에 어느 한면에만 접합되도록 구성함으로써 레일과 엔드캡의 용접 포인트를 축소하여 용접공정을 간소화하고, 레일과 엔드캡 간의 밀착성을 향상시켜 이물발생을 방지하는 데 그 목적이 있다.In view of the above, the present invention is configured such that the welded portion of the end cap is joined to only one surface of each side of the bent rail, thereby simplifying the welding process by reducing the welding point of the rail and the end cap, and improving the adhesion between the rail and the end cap. The purpose is to prevent foreign matters.

도 1 은 일반적인 평면음극선관의 구성도.1 is a block diagram of a general planar cathode ray tube.

도 2 는 종래 레일의 결합구조로서,2 is a coupling structure of a conventional rail,

(가)는 레일을 맞댄 상태도.As for the state to go to rail.

(나)는 엔드캡 구성도.(B) is the end cap configuration.

(다)는 레일의 결합도.(C) is the coupling of the rail.

도 3 은 본 발명에 의한 레일의 결합구조로서,3 is a coupling structure of the rail according to the present invention,

(가)는 엔드캡 구성도.(A) End cap diagram.

(나)는 레일의 결합도.(B) is the coupling degree of the rail.

*** 도면의 주요 부분에 대한 부호의 설명 ****** Explanation of symbols for the main parts of the drawing ***

101 : 레일 102 : 엔드캡101: rail 102: end cap

103 : 본체 104 : 용접부103: main body 104: weld

이하, 본 발명의 실시예를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3 은 본 발명에 의한 평면음극선관의 엔드캡 및 이의 레일 접합구조를 나타낸 것으로서, 인장된 섀도우마스크(도면상에 미도시) 또는 외부자계를 차폐하기 위한 자기쉴드(도면상에 미도시)를 지지하는 4개의 분리된 레일(101)과, 각각의 레일(101)을 연결하여 하나의 레일결합체로 형성하는 엔드캡(102)이 구비된다.3 shows an end cap of a planar cathode ray tube according to the present invention and a rail joint structure thereof, and includes a tensioned shadow mask (not shown) or a magnetic shield (not shown) to shield an external magnetic field. Four separate rails 101 are supported, and end caps 102 are formed by connecting each rail 101 to form one rail assembly.

상기 엔드캡(102)은 후공정에서 프리트글라스의 누설을 막아주기 위한 본체(103)와, 각각의 레일(101)에 용접되는 용접부(104)로 구성된다.The end cap 102 is composed of a main body 103 for preventing the leakage of fritted glass in a later process, and a welded portion 104 welded to each rail 101.

상기 용접부(104)는 절곡에 의해 형성된 레일의 각면중에 일면에만 용접될 수 있도록 소정 길이 및 폭을 갖고, 평평하게 형성된다.The welding part 104 has a predetermined length and width so as to be welded to only one surface of each side of the rail formed by bending, and is formed flat.

이와 같이 구성된 본 발명의 작용을 상세히 설명하면 다음과 같다.Referring to the operation of the present invention configured as described in detail as follows.

먼저, 인장된 섀도우마스크와 자기쉴드를 고정하는 지지체인 4개의 분리된 레일(101)의 안쪽면 모서리를 맞대고 엔드캡(102)을 연결체로 하여 4개의 분리된 레일(101)을 하나의 레일결합체로 형성하게 된다.First, the four separate rails 101 are joined to each other by the inner edges of the four separate rails 101, which are the supports for fixing the tensioned shadow mask and the magnetic shield, and the end caps 102 are connected to one rail assembly. It will be formed as.

이때, 엔드캡(102)의 용접부(104)는 각 레일(101)의 일면에만 용접된 상태가 된다.At this time, the welded portion 104 of the end cap 102 is in a welded state on only one surface of each rail 101.

통상, 두 개의 모재를 다른 부재를 사용하여 용접할 때 용접이 되는 각 면의 면적이 작으면 작을수록 그 밀착성이 높아지게 되는데, 본 발명에 의한 실시예는 이러한 점을 이용한 것으로 엔드캡(102)의 레일(101) 접촉면적을 줄임으로써 밀착성을 좋게 하는 것이다.In general, when the two base materials are welded using different members, the smaller the area of each surface to be welded is, the higher the adhesiveness is. The embodiment of the present invention utilizes this point. The adhesiveness is improved by reducing the contact area of the rail 101.

여기서, 엔드캡(102)의 용접부(104) 길이는 짧으면 짧을수록 레일(101)과의 밀착성 측면에서 유리하지만 너무 짧을 경우에는 후공정에서 틈새로 프리트글라스가 누설될 수 있고, 금형상에서 작업했을 때 원재료 두께 만큼의 라운드(round)를 가지므로 최소한 원재료 두께 보다는 길어야 한다.Here, the shorter the length of the welded part 104 of the end cap 102 is advantageous in terms of adhesion to the rail 101, but if it is too short, the frit glass may leak into a gap in a later process, and when working on a mold It should be at least longer than the thickness of the raw material since it has a round as much as the raw material thickness.

이상에서 설명한 바와 같이 본 발명은 용접포인트의 축소로 용접공정의 간소화되고, 레일과 엔드캡 간의 밀착성이 향상되므로 이물발생이 방지되어 진공불량 및 방전불량이 저감되고, 원재료 손실을 감소하게 되어 제조원가가 절감되는 효과가 있다.As described above, the present invention simplifies the welding process by reducing the welding point, and improves adhesion between the rail and the end cap, thereby preventing foreign matters from occurring, reducing poor vacuum and discharge, and reducing raw material loss. There is a saving effect.

Claims (3)

인장된 섀도우마스크를 패널면과 일정간격을 유지하면서 지지하는 다수의 레일과, 각각의 레일을 서로 접합시켜 레일결합체로 형성하는 엔드캡을 구비하며, 상기 엔드캡에는 본체와, 각각의 레일을 서로 연결시키는 용접부가 구비된 평면음극선관에 있어서,And a plurality of rails for supporting the tensioned shadow mask while maintaining a predetermined distance from the panel surface, and an end cap for joining each rail to each other to form a rail assembly. The end cap includes a main body and each rail. In the planar cathode ray tube provided with a welding portion to connect, 상기 엔드캡의 용접부는 절곡에 의해 형성되는 레일의 각 면중 어느 일면에만 접합되는 것을 특징으로 하는 평면음극선관용 레일의 접합구조.Joining structure of the rail for flat cathode ray tube, characterized in that the welded portion of the end cap is bonded only to any one of each surface of the rail formed by bending. 제 1 항에 있어서,The method of claim 1, 상기 엔드캡의 용접부는 평평하게 구성되며,The welded portion of the end cap is configured flat 그 폭은 용접부가 용접되는 레일의 어느 일면 폭 보다 좁게 구성된 것을 특징으로 하는 평면음극선관용 레일의 접합구조.A joint structure of a rail for flat cathode ray tubes, the width of which is smaller than the width of any one side of the rail to which the weld is welded. 제 1 항에 있어서,The method of claim 1, 상기 용접부의 길이는 적어도 원재료의 두께 보다는 긴 것을 특징으로 하는 평면음극선관용 레일의 접합구조.The joint structure of the rail for flat cathode ray tubes, characterized in that the length of the weld portion is at least longer than the thickness of the raw material.
KR1019970047249A 1997-09-12 1997-09-12 Welding structure of rail for flat cathode ray tube KR100229730B1 (en)

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