KR0137675Y1 - Structure for grounding a main pcb of vcr - Google Patents

Structure for grounding a main pcb of vcr Download PDF

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Publication number
KR0137675Y1
KR0137675Y1 KR2019960006145U KR19960006145U KR0137675Y1 KR 0137675 Y1 KR0137675 Y1 KR 0137675Y1 KR 2019960006145 U KR2019960006145 U KR 2019960006145U KR 19960006145 U KR19960006145 U KR 19960006145U KR 0137675 Y1 KR0137675 Y1 KR 0137675Y1
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South Korea
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main
screw
lower plate
main pcb
grounding
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KR2019960006145U
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Korean (ko)
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KR970055868U (en
Inventor
이행식
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배순훈
대우전자주식회사
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Priority to KR2019960006145U priority Critical patent/KR0137675Y1/en
Publication of KR970055868U publication Critical patent/KR970055868U/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007Casings
    • H05K9/002Casings with localised screening
    • H05K9/0039Galvanic coupling of ground layer on printed circuit board [PCB] to conductive casing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/12Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
    • G11B33/121Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
    • G11B33/123Mounting arrangements of constructional parts onto a chassis

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

본 고안은 브이씨알의 메인피씨비 접지구조에 관한 것으로, 더욱 상세하게는 자기테이프에 기록되어 있는 신호를 프리엠프를 통해 전달받아 적절한 전기적 처리를 실시하는 브이씨알의 메인피씨비 접지구조에 관한 것으로서, 중앙에 암나사부(44)가 형성되며, 양단에 메인피씨비(10)에 끼워맞춤되는 체결편(42)구성되는 접지부재(40)와, 메인피씨비(10)의 하단에 위치하며, 상기 접지부재(40)의 암나사부(44)와 동심상에 배열되는 나사구멍(22a)을 갖도록 상부로 돌출 구성되는 나사결합부(22)를 갖는 메인섀시(20)와, 메인섀시(20)의 하부에 위치하는 하부플레이트(30)로부터 상기 나사구멍(22a)을 통해 암나사부(44)에 나사결합되어 메인피씨비와 하부플레이트(30)를 통전가능하게 하는 나사(50)를 구비함을 특징으로 한다.The present invention relates to a VPC main PCB grounding structure, and more particularly, to a VPC main PCB grounding structure which receives a signal recorded on a magnetic tape through a preamp and performs proper electrical processing. A female threaded portion 44 is formed at the ground member 40 and a ground member 40 formed at the both ends of the fastening piece 42 fitted to the main PC 10, and located at the bottom of the main PC 10, and the ground member ( A main chassis 20 having a screw engaging portion 22 protruding upward to have a screw hole 22a concentrically arranged with the female threaded portion 44 of 40, and located below the main chassis 20 It is characterized in that it has a screw 50 is screwed to the female screw portion 44 through the screw hole 22a from the lower plate 30 to enable the main PCB and the lower plate 30 to be energized.

Description

브이씨알의 메인피씨비 접지구조VRC's main PC grounding structure

제1도는 종래의 메인피씨비 접지구조를 보인 단면도.1 is a cross-sectional view showing a conventional main PCB ratio ground structure.

제2도는 본 고안의 메인피씨비 접지구조를 보인 단면도.2 is a cross-sectional view showing a main PC grounding structure of the present invention.

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

10 : 메인피씨비 20 : 메인섀시10: main PC 20: main chassis

22 : 나사결합부 22a : 나사구멍22: screwed portion 22a: screw hole

30 : 하부플레이트 40 : 접지부재30: lower plate 40: ground member

42 : 체결편 44 : 암나사부42: fastening piece 44: female thread

본 고안은 브이씨알의 메인피씨비 접지구조에 관한 것으로, 더욱 상세하게는 자기테이프에 기록되어 있는 신호를 프리엠프를 통해 전달받아 적절한 전기적 처리를 실시하는 브이씨알의 메인피씨비 접지구조에 관한 것이다.The present invention relates to a VPC main PCB grounding structure, and more particularly, to a VPC main PCB grounding structure which receives a signal recorded on a magnetic tape through a preamp and performs proper electrical processing.

일반적으로 브이씨알은 카세트로부터 자기테이프를 인출하여 소정의 경로를 따라 이동시키는 로딩장치 및 로딩완료된 자기테이프를 소정의 경로를 따라 주행시키는 주행계와, 이 주행계에서 이동중인 자기테이프로부터 신호를 스캔하거나 자기테이프에 신호를 기록하는 비디오헤드를 갖춘 헤드드럼조립체를 갖추고 있다.In general, V-RAL scans signals from a loading system for drawing magnetic tapes from a cassette and moving them along a predetermined path, a traveling system for driving a loaded magnetic tape along a predetermined path, and a magnetic tape moving in the traveling system. Or a head drum assembly with a video head for recording signals on magnetic tape.

또한, 상기 메인베이스의 하부에는 비디오헤드에서 출력되는 신호 또는 비디오 헤드로 공급되는 신호를 전달하는 프리엠프를 갖춘 메인피씨비가 설치된다.In addition, a main PC ratio having a preamplifier for transmitting a signal output from the video head or a signal supplied to the video head is installed below the main base.

이러한 메인피씨비는 전기적신호를 처리하는 다수의 패턴 및 전선이 배열되는 것으로 정전기발생의 우려가 높은 것으로서, 정전기로 인한 신호장해 또는 부품손상 등을 방지하기 위한 접지구조를 필요로 하고 있다.The main PC ratio has a high possibility of generating static electricity by arranging a plurality of patterns and wires for processing electrical signals, and requires a grounding structure to prevent signal damage or component damage due to static electricity.

제1도에는 종래의 메인피씨비 접지구조가 도시되어 있는데, 이에 따르면 메인피씨비(1)의 하단에 합성수지재의 메인섀시(2)가 설치되고, 메인섀시(2)의 하단에는 브이씨알의 외관을 형성함과 동시에 틀을 유지하는 금속성의 하부플레이트(3)가 설치되어 있다. 상기 메인피씨비(1)과 메인섀시(2)는 비교적 좋은 유격을 갖도록 이격 구성되어 메인피씨비(1)의 양단에 메인섀시(2)와 결합된다.FIG. 1 shows a conventional main PC grounding structure, and accordingly, a main chassis 2 of a synthetic resin material is installed at a lower end of the main PC ratio 1, and an external appearance of a VCA is formed at a lower end of the main chassis 2. At the same time, a metallic lower plate 3 is provided to hold the frame. The main PC 1 and the main chassis 2 are spaced apart to have a relatively good clearance and are coupled to the main chassis 2 at both ends of the main PC 1.

또한 상기 하부플레이트(3)는 메인섀시(2)상에 나사(4)결합되는데 이때 나사결합을 위한 공간을 확보하기 위하여 메인섀시(2)로부터 메인피씨비(1)를 관통하도록 돌출된 나사결합부(5)를 형성하고 있다.In addition, the lower plate (3) is coupled to the screw (4) on the main chassis (2) at this time screw connection portion protruding from the main chassis (2) to penetrate the main PCB (1) in order to secure space for screwing (5) is formed.

그리고, 상단이 메인피씨비(1)상에 끼워맞춤되는 체결편(6)이 형성되고, 하단이 메인섀시(2)를 관통하여 하부플레이트(3)에 탄성적으로 접촉하는 탄성편(7)으로 이루어진 접지부재(8)가 구비되어 있다.Then, a fastening piece 6 having an upper end fitted on the main PC ratio 1 is formed, and a lower end passing through the main chassis 2 to the elastic piece 7 elastically contacting the lower plate 3. A ground member 8 is provided.

그러나 이와 같은 구조를 갖는 종래의 메인피씨비 접지구조는 구조가 복잡하고 작업성이 떨어지는 문제를 갖고 있었다.However, the conventional main PC grounding structure having such a structure has a problem of complexity and poor workability.

즉, 하부플레이트(3)의 고정과, 접지부재의 설치를 각각 독립적으로 이루고 있어 구성이 복잡하게 됨은 물론 특히, 메이피씨비(1)상에 접지부재(8)의 설치를 위한 관통구멍 및 하부플레이트(3)의 고정을 위한 나사결합부(5)의 관통을 허용하는 관통구멍등 적어도 2개이상의 관통구멍을 형성함으로 인해 작업성이 불량한 것은 물론 조립효율이 떨어지는 문제를 갖고 있었다.In other words, the fixing of the lower plate 3 and the installation of the grounding member are made independently so that the configuration becomes complicated, and in particular, the through-hole and the lower plate for the installation of the grounding member 8 on the Mac CB 1. Due to the formation of at least two through holes such as through holes that allow the screwing portion 5 to penetrate (3), the workability was poor and the assembly efficiency was lowered.

본 고안은 상술한 바와 같은 종래기술의 문제점을 해결하기 위하여 안출된 것으로, 그 목적은 구조를 간단히 함과 동시에 작업성을 향상시킬 수 있는 브이씨알의 메인피씨비 접지구조를 제공함에 있다.The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to provide a VPC main PC grounding structure that can simplify the structure and improve the workability.

이러한 본 고안의 목적은 중앙에 암나사부가 형성되며, 양단에 메인피씨비에 끼워맞춤되는 체결편이 구성되는 접지부재와, 메인피씨비의 하단에 위치하며, 상기 접지부재의 암나사부와 동심상에 배열되는 나사구멍이 내부에 형성되도록 상부로 돌출구성되는 나사결합부를 갖는 메인섀시와, 메인섀시의 하부에 위치하는 하부플레이트로부터 상기 나사구멍을 통해 암나사부에 나사결합되어 메인피씨비와 하부플레이트를 통전가능하게 하는 나사를 구비하여 달성할 수 있다.The object of the present invention is a female member formed in the center, the ground member is composed of a fastening piece to be fitted to the main PC ratio at both ends, and located at the bottom of the main PC ratio, the screw is arranged concentric with the female screw portion of the ground member A main chassis having a screw coupling portion protruding upwardly so that a hole is formed therein, and screwed into a female screw portion through the screw hole from a lower plate positioned at the bottom of the main chassis to enable the main PC and the lower plate to be energized; Achieved with a screw.

즉, 접지부재를 하부플레이트 고정용 나사에 동시체결하여 나사를 통해 정전기를 하부플레이트로 배출하게 됨으로써 구조의 단순화는 물론 작업성을 향상시킬 수 있게 되는 것이다.That is, by simultaneously fastening the grounding member to the lower plate fixing screw to discharge the static electricity to the lower plate through the screw will be able to improve the workability as well as the simplification of the structure.

이하, 본 고안의 바람직한 실시예를 첨부도면을 참조하여 좀더 구체적으로 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

제2도에는 본 고안에 따른 메이피씨비 접지구조가 도시되어 있는데, 이에 따르면, 메인피씨비(10)의 하단에 합성수지재의 메인섀시(20)가 설치되고, 메인섀시(20)의 하단에는 브이씨알의 외관을 형성함과 동시에 틀을 유지하는 금속성의 하부플레이트(30)가 설치되어 있다. 상기 메인피씨비(10)와 메인섀시(20)는 비교적 좁은 유격을 갖도록 이격 구성되어 메인피씨비(10)의 양단에서 메인섀시(20)와 결합된다.Figure 2 is shown a grounding structure of the PC CB according to the present invention, according to this, the main chassis 20 of the synthetic resin material is installed at the bottom of the main PCB (10), the bottom of the VCA of the main chassis 20 The metallic lower plate 30 is provided to form the exterior and maintain the frame. The main PC 10 and the main chassis 20 are spaced apart so as to have a relatively narrow play and are coupled with the main chassis 20 at both ends of the main PC 10.

또한, 상기 하부플레이트(30)는 매인섀시(20)상에 나사(50)결합되는데 이때 나사결합을 위한 공간을 확보하기 위하여 메인섀시(20)로부터 메인피씨비(10)를 관통하도록 돌출되며 상부가 개방되는 나사구멍(22a)을 갖는 나사결합부(22)가 형성되어 있다. 이 나사(50)는 상단이 나사결합부(22)를 통해 상부로 돌출될 수 있는 길이를 갖고 있다.In addition, the lower plate 30 is coupled to the screw (50) on the main chassis 20 at this time to protrude through the main PC ratio 10 from the main chassis 20 in order to secure a space for screwing the upper portion A screw engaging portion 22 having a screw hole 22a to be opened is formed. The screw 50 has a length at which the upper end can protrude upward through the screwing portion 22.

그리고, 양단에 메인피씨비(10)상에 끼워맞춤되는 체결편(42)이 형성되고, 중앙에 상기 나사결합부(22)의 상부로 돌출되는 나사(50)에 나사결합되는 암나사부(44)가 형성되는 접지부재(40)가 구비되어 있다.Then, both ends are formed with a fastening piece 42 to be fitted on the main PC ratio 10, the female screw portion 44 is screwed to the screw 50 protruding to the upper portion of the screw coupling portion 22 in the center Is provided with a grounding member 40 is formed.

상기 메인섀시(20)는 나사(50)와 접지부재(40)의 나사결합에 의해 고정을 이루게 된다.The main chassis 20 is secured by screwing the screw 50 and the ground member 40.

이와 같은 구성을 갖는 본 고안은 접지부재(40)의 체결편(42)을 메인피씨비(10)상에 끼워맞춤하게 되면 암나사부(44)가 나사결합부(22)의 나사구멍(22a)에 일치하게 된다. 이러한 상태에서 메인섀시(20)의 저면에 하부플레이트(30)를 위치시키고, 나사결합부(22)를 통해 나사(50)를 삽입하여 상기 접지부재(46)의 암나사부(44)에 나사결합하는 것에 의해 하부플레이트(30) 및 접지부재(40)가 고정되고, 상호 전기적으로 통전 가능한 상태가 되므로 메인피씨비(10)에서 발생되는 정전기는 접지부재(40)와 나사(50)를 통해 하부플레이트(30)로 방출되어 진다.According to the present invention having such a configuration, when the fastening piece 42 of the grounding member 40 is fitted on the main PC ratio 10, the female screw portion 44 is connected to the screw hole 22a of the screwing portion 22. Will match. In this state, the lower plate 30 is positioned on the bottom surface of the main chassis 20, and the screw 50 is inserted through the screw coupling portion 22 to screw the female screw portion 44 of the ground member 46. The lower plate 30 and the grounding member 40 are fixed to each other, and the state becomes electrically conductive. Therefore, the static electricity generated in the main PCB 10 is lowered through the grounding member 40 and the screw 50. It is released to 30.

이상에서 상세히 설명한 바와 같이 본 고안에 따른 브이씨알의 메인피씨비 접지구조는 하부플레이트 메인섀시에 고정하는 나사의 상단을 메인피씨비상부로 돌출되도록 연장구성하고, 접지부재를 메인피씨비에 고정됨과 동시에 연장된 나사에 나사결합토록 함으로써 나사를 통해 방전을 이룰 수 있게 되므로 구조의 단순화는 물론 메인피씨비상에 필요 이상의 나사구멍을 형성하는 작업을 배제하게 되어 작업성을 향상시킬 수 있는 효과를 갖는 것이다.As described in detail above, the VPC main PCB grounding structure of the present invention extends so that the upper end of the screw fixed to the lower plate main chassis protrudes into the main PC emergency portion, and the grounding member is fixed to the main PC ratio and extended at the same time. Since the screw can be screwed to the screw, the discharge can be achieved through the screw, thereby simplifying the structure and eliminating the operation of forming a screw hole more than necessary in the main PC vision, thereby improving workability.

Claims (1)

중앙에 암나사부(44)가 형성되며, 양단에 메인피씨비(10)에 끼워맞춤되는 체결편(42)구성되는 접지부재(40)와, 메인피씨비(10)의 하단에 위치하며, 상기 접지부재(40)의 암나사부(44)와 동심상에 배열되는 나사구멍(22a)을 갖도록 상부로 돌출 구성되는 나사결합부(22)를 갖는 메인섀시(20)와, 메인섀시(20)의 하부에 위치하는 하부플레이트(30)로부터 상기 나사구멍(22a)을 통해 암나사부(44)에 나사결합되어 메인피씨비와 하부플레이트(30)를 통전가능하게 하는 나사(50)를 구비함을 특징으로 하는 브이씨알의 메인피씨비 접지구조.A female threaded portion 44 is formed at the center, and is located at the lower end of the ground member 40 and the main PC ratio 10 formed of the fastening piece 42 fitted to the main PC 10 at both ends. A main chassis 20 having a screw engaging portion 22 protruding upward to have a screw hole 22a concentrically arranged with the female screw portion 44 of the 40, and a lower portion of the main chassis 20. A screw (50) which is screwed into the female screw portion (44) through the screw hole (22a) from the lower plate (30), which is located therein, to enable the main PCB and the lower plate (30) to be energized. LM's main PCB grounding structure.
KR2019960006145U 1996-03-28 1996-03-28 Structure for grounding a main pcb of vcr KR0137675Y1 (en)

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KR0137675Y1 true KR0137675Y1 (en) 1999-04-15

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