KR960008122Y1 - Shielding device for electromagnetic wave of monitor - Google Patents

Shielding device for electromagnetic wave of monitor Download PDF

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Publication number
KR960008122Y1
KR960008122Y1 KR2019930005974U KR930005974U KR960008122Y1 KR 960008122 Y1 KR960008122 Y1 KR 960008122Y1 KR 2019930005974 U KR2019930005974 U KR 2019930005974U KR 930005974 U KR930005974 U KR 930005974U KR 960008122 Y1 KR960008122 Y1 KR 960008122Y1
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South Korea
Prior art keywords
chassis
hole
fixed
heat dissipation
monitor
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KR2019930005974U
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Korean (ko)
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KR940025722U (en
Inventor
이남수
정석화
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주식회사 엘지전자
구자홍
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Priority to KR2019930005974U priority Critical patent/KR960008122Y1/en
Publication of KR940025722U publication Critical patent/KR940025722U/en
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Publication of KR960008122Y1 publication Critical patent/KR960008122Y1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
    • H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • H05K7/20509—Multiple-component heat spreaders; Multi-component heat-conducting support plates; Multi-component non-closed heat-conducting structures
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0094—Shielding materials being light-transmitting, e.g. transparent, translucent
    • H05K9/0096—Shielding materials being light-transmitting, e.g. transparent, translucent for television displays, e.g. plasma display panel

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

요약없음No summary

Description

모니터의 전자파 차폐장치Monitor electromagnetic shield

제1도는 종래의 장치를 나타낸 사시도.1 is a perspective view showing a conventional device.

제2도는 제1도를 나타낸 종단면도.2 is a longitudinal cross-sectional view showing the first view.

제3도는 본 고안을 나타낸 분해사시도.Figure 3 is an exploded perspective view showing the present invention.

제4도는 제3도의 결합된 상태를 나타낸 종단면도.4 is a longitudinal cross-sectional view showing the combined state of FIG.

제5도는 제4도의 A부분 확대도.5 is an enlarged view of portion A of FIG.

제6도는 제4도의 B부분 확대도.6 is an enlarged view of portion B of FIG.

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

1 : 샤시2, 2a : 통공1 chassis 2, 2a through hole

3 : 지지편4 : 회로소지3: support piece 4: circuit holding

5 : 기판6 : 체결부재5 substrate 6 fastening member

7, 7a : 방열공8 : 고정공7, 7a: heat radiating hole 8: fixing hole

9 : 차폐커버10 : 체결돌기9: shield cover 10: fastening protrusion

11 : 고정편12 : 요입홈11: fixing piece 12: recessed groove

13 : 체결공14 : 어스핀13: fastener 14: earth pin

15 : 어스선15: Earth ship

본 고안은 모니터의 전자파 차폐장치에 관한 것으로서, 더욱 상세하게는 전자파 간섭(EMI : Electronic Magnetic Interference)규제를 받는 컴퓨터등과 같은 전자제품의 모니터에 설치된 스위칭 전원부(SMPS : Switching Mode Power Supply)에서 발생되는 전자파를 효율적으로 차폐시킬수 있도록 한것이다.The present invention relates to an electromagnetic shielding device of a monitor, and more particularly, occurs in a switching mode power supply (SMPS) installed in a monitor of an electronic product such as a computer which is subject to electromagnetic magnetic interference (EMI) regulation. It is to shield the electromagnetic waves efficiently.

종래의 장치는 제1도 및 제2도에 나타낸 바와같이, 모니터에 설치된 스위칭 전원부의 금속재로된 샤시(1a)상에 형성된 고정보스(16)에 상부에 각종 회로소자(4)들이 장착된 기판(5a)이 얹혀져 체결부재(6)로서 기판(5a)이 고정보스(16)에 고정되고, 상기 기판(5a)의 상부에는 금속재로 된 소정 형상의 차폐커버(Shield Cover)(9a)를 씌워준후 체결부재(6)로서 차폐커버(9a)를 상기 샤시(1a)에 고정시켜 스위칭 전원부에서 발생되는 전자파를 차폐시키게 된다.The conventional apparatus is a substrate in which various circuit elements 4 are mounted on a high intelligence 16 formed on a chassis 1a made of a metal material of a switching power supply unit installed in a monitor, as shown in FIGS. 1 and 2. The substrate 5a is fixed to the high information 16 as the fastening member 6, and the upper portion of the substrate 5a is covered with a metal shield cover 9a of a predetermined shape. Then, as the fastening member 6, the shield cover 9a is fixed to the chassis 1a to shield electromagnetic waves generated from the switching power supply unit.

그러나, 이와같은 종래의 전자파 차폐장치는 기판(5a)의 상,하부가 차폐커버(9a)와 샤시(1a)에 의해 폐쇄되어 있으므로 인해 스위칭 전원부내의 각종 회로소자(4)에서 발생되는 열이 원활하게 방출되지 못하게되어 회로소자(4)의 특성이 나빠져서 제품의 성능을 저하시키게 되는 문제점이 있었다.However, in the conventional electromagnetic shielding device, since the upper and lower portions of the substrate 5a are closed by the shielding cover 9a and the chassis 1a, heat generated from various circuit elements 4 in the switching power supply unit is smooth. There is a problem in that the characteristics of the circuit element 4 is deteriorated to deteriorate to reduce the performance of the product.

본 고안은 상기한 제반 문제점을 해결하기 위한 것으로서, 본 고안은 전자파 간섭 규제를 받는 전자제품의 모니터에 설치된 스위칭 전원부에서 발생되는 전자파를 효율적으로 차폐시킬수 있을 뿐만아니라, 기판의 각종 회로소자에서 발생되는 열을 외부로 용이하게 방출시켜서 제품의 성능이 저하되는 것을 방지할 수 있는 모니터의 전자파 차폐장치를 제공하는데 그 목적이 있다.The present invention is to solve the above-mentioned problems, the present invention can not only effectively shield the electromagnetic wave generated in the switching power supply unit installed in the monitor of the electronic product subject to electromagnetic interference restrictions, but also generated in various circuit elements of the substrate An object of the present invention is to provide an electromagnetic shielding device for a monitor that can easily release heat to the outside to prevent deterioration of product performance.

상기한 목적을 달성하기 위해 본 고안은 통공에 형성되어 일체로 돌출되는 지지편과 고정편 및 열을 방열시키는 복수개의 방열공이 형성되는 샤시와, 상기 지지편에 안착되어 고정되며 회로소자들이 장착되는 기판과, 상기 샤시의 고정공에 고정되는 체결돌기와 고정편에 고정되는 요입홈 및 방열공과 대응되어 기판에서 발생되는 열을 외부로 방열시키는 방열공이 형성된 탄성력이 구비되는 차폐커버로 구성된 모니터의 전자파 차폐장치이다.In order to achieve the above object, the present invention provides a chassis in which a plurality of heat dissipation holes are formed, which are formed in a through hole and protrude integrally, and a heat dissipation hole for heat dissipation. And a shielding cover having a resilient force having a heat dissipation hole for radiating heat generated from the substrate to the outside in correspondence with a fastening protrusion fixed to the fixing hole of the chassis, a recess groove fixed to the fixing piece, and a heat dissipation hole. Electromagnetic shielding device.

이하, 본 고안의 일실시예를 첨부도면 제3도 내지 제6도를 참조하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 3 to 6 as follows.

제3도는 본 고안을 나타낸 분해사시도이고, 제4도는 제3도의 결합된 상태를 나타낸 종단면도이며 제5도는 제4도의 A부분 확대도이고, 제6도는 제4도의 B부분 확대도로서, 전자제품의 모니터에 설치되어 도전체로 된 금속재의 샤시(1) 상, 하부에 형성된 복수개의 통공(2)에 일체로 돌출되어 지지편(3)이 형성되고, 지지편(3)의 상부에는 상부에 각종 회로소자(4)들이 장착된 기판(5)이 안착되어 체결부재(6)로서 고정되며, 상기 샤시(1)의 상부에는 기판(5)에서 발생되는 열을 외부로 방열시키는 복수개의 방열공(7)이 형성되고, 방열공(7)의 직경은 발생되는 전자파의 주파수를 고려하여 약 6~8mm로 천공되며, 상기 방열공(7)의 상호 간격은 4mm 이상이 되도록 배치된다.FIG. 3 is an exploded perspective view showing the present invention, FIG. 4 is a longitudinal sectional view showing the combined state of FIG. 3, FIG. 5 is an enlarged view of portion A of FIG. 4, and FIG. 6 is an enlarged view of portion B of FIG. The support piece 3 is formed by integrally protruding from the plurality of through holes 2 formed on the chassis 1 of the metal material made of a conductor and formed on the lower part of the monitor of the product, and on the upper part of the support piece 3. A substrate 5 on which various circuit elements 4 are mounted is seated and fixed as a fastening member 6, and a plurality of heat dissipation holes radiating heat generated from the substrate 5 to the outside on the chassis 1. (7) is formed, the diameter of the heat dissipation hole 7 is drilled to about 6 ~ 8mm in consideration of the frequency of the electromagnetic wave generated, the mutual spacing of the heat dissipation holes 7 is arranged to be 4mm or more.

또한, 샤시(1)상의 일측에는 고정공(8)이 형성되어 탄성력있는 도전체로 된 금속재의 차폐 커버(9)의 일단에 형성된 체결돌기(10)가 삽입되어 고정되고, 상기 샤시(1)상의 타측에는 통공(2a)에 일체로 돌출된 고정편(11)이 형성되어 상기 차폐커버(9) 타단의 요입홈(12)이 삽입되어 고정되며, 상기 차폐커버(9)의 상부에는 샤시(1)의 방열공(7)과 대응되는 복수개의 방열공(7a)이 형성된다.In addition, a fixing hole 8 is formed at one side of the chassis 1 so that the fastening protrusion 10 formed at one end of the shielding cover 9 of the metallic material made of a resilient conductor is inserted into and fixed to the chassis 1. A fixing piece 11 protruding integrally into the through hole 2a is formed at the other side, and the recessed groove 12 at the other end of the shielding cover 9 is inserted and fixed, and the chassis 1 is provided at the upper portion of the shielding cover 9. A plurality of heat dissipation holes 7a corresponding to the heat dissipation holes 7 are formed.

그리고, 샤시(1)와 차폐커버(9)의 두께는 전기적인 도전성과 기계적인 강도를 고려하여 0.3mm 이상으로 제작되고, 상기 샤시(1)의 상부 일측에는 체결공(13)이 형성되어 체결부재(6)로서 어스핀(14)이 설치된 어스선(15)이 고정되도록 구성된다.In addition, the chassis 1 and the shielding cover 9 have a thickness of 0.3 mm or more in consideration of electrical conductivity and mechanical strength, and a fastening hole 13 is formed at an upper side of the chassis 1 to be fastened. The earth wire 15 provided with the earth pin 14 as the member 6 is configured to be fixed.

이와같이 구성된 본 고안은 제3도 내지 제6도에 나타낸 바와같이, 전자제품의 모니터에 설치되어 도전체로 된 금속재의 샤시(1) 상, 하부에 형성된 복수개의 통공(2)에 일체로 돌출된 지지편(3)상에 상부에 각종 회로소자(4)들이 장착된 기판(6)을 안착시킨후 체결부재(6)로서 고정시키고, 상기 샤시(1)의 상부 일측에 형성된 체결공(13)에 어스핀(14)이 설치된 어스선(15)을 체결부재(6)로서 고정시키며 상기 샤시(1)상의 일측에 형성된 고정공(8)에 탄성력있는 도전체로된 금속재의 차폐커버(9) 일단의 체결돌기(10)를 삽입시켜 고정시킨다.The present invention configured as described above has a support integrally provided in the plurality of through-holes 2 formed in the lower part on the chassis 1 of the metal material made of a conductor and mounted on the monitor of the electronic product as shown in FIGS. The board 6 on which the various circuit elements 4 are mounted is mounted on the piece 3 and then fixed as the fastening member 6, and the fastening hole 13 formed on one side of the upper part of the chassis 1. Fastening of one end of the shielding cover 9 made of a metal material made of an elastic conductor to the fixing hole 8 formed on one side of the chassis 1 and fixing the earth wire 15 provided with the earth pin 14 as the fastening member 6. Insert and fix the protrusions 10.

이와같은 상태에서 제4도에 나타낸 바와같이, 차폐커버(9)의 타단을 눌러줌과 동시에, 차폐커버(9)를 화살표 방향으로 밀어주게 되면, 샤시(1)상의 타측에 형성된 통공(2a)에 일체로 돌출된 고정편(11)의 밑으로 상기 차폐커버(9)의 타단에 형성된 요입홈(12)이 삽입되어 상기 샤시(1)와 차폐커버(9)가 용이하고 신속하게 상호 체결된다.In this state, as shown in FIG. 4, when the other end of the shield cover 9 is pressed and the shield cover 9 is pushed in the direction of the arrow, the through hole 2a formed on the other side on the chassis 1 is provided. A recessed groove 12 formed at the other end of the shielding cover 9 is inserted under the fixing piece 11 protruding integrally to the chassis 1 so that the chassis 1 and the shielding cover 9 are fastened to each other easily and quickly. .

따라서, 샤시(1)의 지지편(3)에 안착되어 고정된 기판(5)상의 각종 회로소자(4)에서 열이 발생하게 되면, 상기 샤시(1)와 차폐커버(9) 상부에 형성된 복수개의 방열공(7)(7a)을 통해 상, 하 방향으로 열의 발산이 원활하게 이루어지게 되므로 스위칭 전원부의 전자파 차폐 및 방열 작용을 동시에 수행할 수 있게 된다.Therefore, when heat is generated from various circuit elements 4 on the substrate 5 which are seated on the support piece 3 of the chassis 1 and are fixed, the plurality of upper portions of the chassis 1 and the shield cover 9 are formed. Since the heat is dissipated smoothly in the up and down directions through the four heat dissipation holes 7 and 7a, the electromagnetic shielding and the heat dissipation action of the switching power supply unit can be simultaneously performed.

이상에서와 같이, 본 고안은 모니터에 설치된 샤시(1)에 안착되어 고정된 기판(5)의 각종 회로소자(4)에서 전자파가 발생시 기판(5)의 하부로 발생되는 전자파는 샤시(1)에 의해 외부로의 누설이 방지될 뿐만아니라, 기판(5)의 상부로 발생되는 전자파는 차폐커버(9)에 의해 외부 누설이 완전하게 차폐됨과 동시에 기판(5)에서 발생되는 열을 샤시(1)와 차폐커버(9)의 방열공(7)(7a)을 통해 효율적인 방열 작용이 이루어지게 되므로 주변의 다른 부품이나 회로소자(4)에 전자파의 간섭으로 인한 폐해를 방지할 수 있어서 제품의 효율성 및 신뢰성을 향상시킨 매우 유용한 고안이다.As described above, according to the present invention, when electromagnetic waves are generated in various circuit elements 4 of the substrate 5 mounted and fixed to the chassis 1 installed in the monitor, the electromagnetic waves generated below the substrate 5 are generated by the chassis 1. In addition to preventing leakage to the outside, electromagnetic waves generated on the upper portion of the substrate 5 are completely shielded by the shielding cover 9 and at the same time the heat generated from the substrate 5 Efficient heat dissipation is achieved through the heat dissipation holes (7) (7a) of the shielding cover (9) and the shielding cover (9) to prevent the damage caused by the interference of electromagnetic waves to other parts or circuit elements 4 around the efficiency of the product And a very useful design with improved reliability.

Claims (4)

통공(2)(2a)에 형성되어 일체로 돌출되는 지지편(3)과 고정편(11) 및 열을 방열시키는 복수개의 방열공(7)이 형성되는 샤시(1)와, 상기 지지편(3)에 안착되어 고정되며 회로소자(4)들이 장착되는 기판(5)과, 상기 샤시(1)의 고정공(8)에 고정되는 체결돌기(10)와 고정편(11)에 고정되는 요입홈(12) 및 방열공(7)과 대응되어 기판(5)에서 발생되는 열을 외부로 방열시키는 방열공(7a)이 형성된 탄성력이 구비되는 차폐커버(9)로 구성된 것을 특징으로 하는 모니터의 전자파 차폐장치.The chassis 1 and the support piece 3 are formed in the through hole 2 and 2a, and the support piece 3 and the fixed piece 11 and the heat dissipation holes 7 for dissipating heat are formed. 3) seated and fixed to the substrate (5) on which the circuit elements (4) are mounted, and the fastening protrusion (10) and the fixing piece (11) fixed to the fixing hole (8) of the chassis (1). The monitor cover, characterized in that composed of a shield cover 9 is provided with an elastic force corresponding to the mouth groove 12 and the heat radiating hole 7 is formed with a heat radiating hole 7a for radiating heat generated from the substrate 5 to the outside. Electromagnetic shielding device. 제1항에 있어서, 상기 샤시(1)의 상부 일측에는 체결공(13)이 형성되어 체결부재(6)로서 어스핀(14)이 설치된 어스선(15)이 고정된 모니터의 전자파 차폐장치.The electromagnetic shielding device of a monitor according to claim 1, wherein a fastening hole (13) is formed at an upper side of the chassis (1), and the earth wire (15) on which an earth pin (14) is installed as a fastening member (6) is fixed. 제1항에 있어서, 상기 방열공(7)(7a)의 직경은 발생되는 전자파의 주파수를 고려하여 약 6~8mm로 천공되고, 방열공(7)(7a)의 상호 간격이 4mm 이상이 되도록 배치된 모니터의 전자파 차폐장치.The diameter of the heat dissipation holes (7) (7a) is perforated about 6 ~ 8mm in consideration of the frequency of electromagnetic waves generated, so that the mutual spacing of the heat dissipation holes (7) (7a) is 4mm or more. Electromagnetic shielding of deployed monitors. 제1항에 있어서, 상기 샤시(1)의 차폐커버(9)의 두께가 0.3mm 이상으로 제작된 모니터의 전자파 차폐장치.The electromagnetic shielding device for a monitor according to claim 1, wherein the shield cover (9) of the chassis (1) has a thickness of 0.3 mm or more.
KR2019930005974U 1993-04-15 1993-04-15 Shielding device for electromagnetic wave of monitor KR960008122Y1 (en)

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KR960008122Y1 true KR960008122Y1 (en) 1996-09-23

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