KR900003653Y1 - Focus unit - Google Patents

Focus unit Download PDF

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Publication number
KR900003653Y1
KR900003653Y1 KR2019860019078U KR860019078U KR900003653Y1 KR 900003653 Y1 KR900003653 Y1 KR 900003653Y1 KR 2019860019078 U KR2019860019078 U KR 2019860019078U KR 860019078 U KR860019078 U KR 860019078U KR 900003653 Y1 KR900003653 Y1 KR 900003653Y1
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KR
South Korea
Prior art keywords
focus
alumina substrate
focus unit
resistor
shielding
Prior art date
Application number
KR2019860019078U
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Korean (ko)
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KR880010946U (en
Inventor
김태현
Original Assignee
삼성전자부품 주식회사
임경춘
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Application filed by 삼성전자부품 주식회사, 임경춘 filed Critical 삼성전자부품 주식회사
Priority to KR2019860019078U priority Critical patent/KR900003653Y1/en
Publication of KR880010946U publication Critical patent/KR880010946U/en
Application granted granted Critical
Publication of KR900003653Y1 publication Critical patent/KR900003653Y1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/42—Flyback transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Television Scanning (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

내용 없음.No content.

Description

포커스유니트(Focus Unit)Focus Unit

제1도는 종래의 포커스유니트 단면도.1 is a cross-sectional view of a conventional focus unit.

제2도는 제1도의 A-A선 단면도.2 is a sectional view taken along the line A-A of FIG.

제3도는 본 고안의 포커스유니트 단면도.3 is a cross-sectional view of the focus unit of the present invention.

제4도는 제3도중 B-B선 단면도.4 is a cross-sectional view taken along the line B-B in FIG.

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

1 : 포커스유니트케이스 2 : 알루미나 기판1 Focus Unit Case 2 Alumina Substrate

2' : 기판후면 3 : 포커스부저항체2 ': back side of substrate 3: focus part resistor

4 : 스크린부저항체 5 :포커스부접속단자4: Screen part resistor 5: Focus connection terminal

5' : 스크린부접속단자 6, 6' : 볼륨손잡이5 ': Terminal for screen connection 6, 6': Volume knob

7 : 차폐돌편 7a : 본 고안의 차폐돌편7: shielding piece 7a: shielding piece of the present invention

8 : 차폐홈 K : 저항체 사이의 간격8: shielding groove K: spacing between resistors

본 고안의 플라이백 트랜스포머의 포커스유니트 구성에서 포커스볼륨부와 스크린볼륨사이의 차폐구조를 개량한 것이다.In the focus unit configuration of the flyback transformer of the present invention, the shield structure between the focus volume portion and the screen volume is improved.

종래의 포커스유니트의 구성은 제1도-제2도에 도시한 바와 같이 장방형 알루미나기판(2)에 일측으로는 포커스부저항제(3)를 타측으로는 스크린부저항체(4)를 각각 원호상으로 간격(K)을 두고 인쇄하고 케이스(1)를 볼륨손잡이(6)(6')에 각각 설치하여 포커스전압 조정볼륨부와 스크린전압 조정볼륨부를 일체로 형성시켜된 것인바, 양 볼륨부간에는 높은 전위차가 있으므로 알루미나기판(2)에 인쇄된 저항체(3)(4)사이의 간격(K)을 충분히 벌려서 위치시키거나 절연구조물로 차폐시켜야 되는 필요성이 있었던 것이다.In the conventional focus unit, as shown in FIGS. 1 to 2, the rectangular alumina substrate 2 has an arcuate portion resistor 3 on one side and the screen resistor 4 on the other side in an arc shape. It is printed at intervals K and the case 1 is installed on the volume knobs 6 and 6 ', respectively, to form the focus voltage adjusting volume portion and the screen voltage adjusting volume portion integrally. Since there is a potential difference, there was a need to sufficiently space the space K between the resistors 3 and 4 printed on the alumina substrate 2 or to shield the insulation structure.

이에따라 종래에는 알루미나기판(2)을 크게하며 양저항체(3)(4)사이를 넓은 간격으로 유지하거나, 케이스(1)내면에 저항체(3)(4)사이의 간격(K)상면으로 접지되는 차폐돌편(7)을 형성시켜 절연성을 얻도록 구성하였으나 전자의 방법은 기판의 증대에 따라 포커스유니트가 비대해지는 단점이 있고 후자의 방법은 차폐돌편(7)이 알루미나기판(2)과 충분히 밀착되지 못하여 별도의 접착제를 사용해야 되는 단점이 있었던 것이다.Accordingly, in the related art, the alumina substrate 2 is enlarged and maintained at a wide interval between the positive resistors 3 and 4 or grounded to the upper surface of the gap K between the resistors 3 and 4 on the inner surface of the case 1. Although the shielding piece 7 is formed to obtain insulation, the former method has a disadvantage in that the focus unit is enlarged with the increase of the substrate, and the latter method does not allow the shielding piece 7 to be in close contact with the alumina substrate 2. There was a disadvantage that you must use a separate adhesive.

이에 본 고안은 상기한 종래의 단점들을 보완코져 안출된 것으로서 첨부된 일실시예의 도면과 함께 상세히 설명하면 다음과 같다.Therefore, the present invention will be described in detail with the accompanying drawings of the embodiments as designed to complement the above-mentioned disadvantages.

공지한 포커스유니트 구성에 있어서 알루미나기판(2)에는 포커스부저항체(3)와 스크린부저항체(4)사이에 횡형의 차폐홈(8)을 천공하고, 케이스(1)의 내면에는 조립되는 알루미나기판(2)의 차폐홈(8)을 통과하여 후면(2')으로 돌출되는 정도의 높은 차폐돌편(7a)을 형성시켜서된 구성으로 미설명부호(9)는 절연수지물을 나타낸 것이다.In a known focus unit configuration, an alumina substrate is formed in the alumina substrate 2 with a horizontal shielding groove 8 formed therebetween between the focus portion resistor 3 and the screen portion resistor 4 and the inner surface of the case 1. The reference numeral 9 denotes an insulating resin in a configuration in which a shielding piece 7a is formed so high as to protrude to the rear surface 2 'through the shielding groove 8 of (2).

이러한 구성의 본 고안은 포커스유니트의 구성에 있어서 케이스(1)에 후단으로 알루미나기판(2)을 조립하면 케이스(1) 내면의 높게 돌출된 차폐돌편(7a)이 알루미나기판(2)의 후면(2')으로 양저항체(3)(4)사이의 차폐홈(8)을 통과하여 돌출되고 이어서 알루미나기판(2) 후면에서 절연수지물(9)을 함침시키면 케이스(1)와 알루미나기판(2)이 접착조립되면서 동시에 차폐홈(8)으로 돌출된 차폐돌편(7a)을 몰드화 시키므로 차폐홈(8)과 차폐돌편(7a)의 이음틈새를 효과적으로 밀폐하면서 견고히 부착시키는 효과가 있는바, 알루미나기판(2) 내면에 인쇄된 포커스저항체(3)와 스크린저항체(4) 사이를 차폐돌편(7a)으로 완전히 차폐시키게되어, 즉 높은 전위차를 갖는 포커스전압 조절볼륨부와 스크린전압 조정볼륨부를 절연시키게 되어 표면누설전류(Leak)를 방지할 수 있어 내전압불량등의 성능저하를 보완하고, 케이스와 알루미나기판의 고정작업을 원활하고 견고히 하면서 작업능률을 높일수 있는 장점을 갖는 것이다.According to the present invention of the above configuration, when the alumina substrate 2 is assembled to the case 1 at the rear end of the focus unit, the shielding projection 7a protruding from the inner surface of the case 1 is formed on the rear surface of the alumina substrate 2. 2 ') protrudes through the shielding groove 8 between the positive resistors 3 and 4, and then impregnates the insulating resin 9 from the back of the alumina substrate 2, and the case 1 and the alumina substrate 2 At the same time, as the mold is assembled, the shielding piece 7a protruding into the shielding groove 8 is effectively bonded and secured to the gap between the shielding groove 8 and the shielding piece 7a. The shielding piece 7a is completely shielded between the focus resistor 3 and the screen resistor 4 printed on the inner surface of the substrate 2, that is, to insulate the screen voltage adjusting volume portion and the focus voltage adjusting volume portion having a high potential difference. Surface leakage current can be prevented Compensate for performance degradation such as poor withstand voltage, and to have the advantage that, while a smooth and solidify the work fixing the case and the alumina substrate in turn, benefits operating efficiency.

Claims (1)

공지의 플라이백 트랜스포머의 포커스유니트를 구성함에 있어서 알루미나기판(2)의 포커스저항체(3)와 스크린저항체(4) 사이에 횡형의 차폐홈(8)를 천공하고 케이스(1) 내면의 차폐돌편(7a)은 상기 차폐홈(8)을 통과하여 알루미나기판(2)의 후면(2')으로 돌출되는 정도의 높이를 갖도록 구성함을 특징으로한 포커스유니트.In constructing a focus unit of a known flyback transformer, a horizontal shielding groove 8 is drilled between the focus resistor 3 and the screen resistor 4 of the alumina substrate 2, and the shielding projection piece on the inner surface of the case 1 ( 7a) is configured to have a height such that it passes through the shielding groove (8) to protrude to the rear (2 ') of the alumina substrate (2).
KR2019860019078U 1986-11-29 1986-11-29 Focus unit KR900003653Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860019078U KR900003653Y1 (en) 1986-11-29 1986-11-29 Focus unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860019078U KR900003653Y1 (en) 1986-11-29 1986-11-29 Focus unit

Publications (2)

Publication Number Publication Date
KR880010946U KR880010946U (en) 1988-07-29
KR900003653Y1 true KR900003653Y1 (en) 1990-04-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019860019078U KR900003653Y1 (en) 1986-11-29 1986-11-29 Focus unit

Country Status (1)

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Publication number Publication date
KR880010946U (en) 1988-07-29

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