KR20020053692A - Electromagnetic wave absorption device - Google Patents

Electromagnetic wave absorption device Download PDF

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Publication number
KR20020053692A
KR20020053692A KR1020010023216A KR20010023216A KR20020053692A KR 20020053692 A KR20020053692 A KR 20020053692A KR 1020010023216 A KR1020010023216 A KR 1020010023216A KR 20010023216 A KR20010023216 A KR 20010023216A KR 20020053692 A KR20020053692 A KR 20020053692A
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South Korea
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electromagnetic wave
oxide
weight
electromagnetic
offset part
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KR1020010023216A
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Korean (ko)
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장응순
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장응순
주식회사 에스비텔콤
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Priority to KR1020010023216A priority Critical patent/KR20020053692A/en
Priority to PCT/KR2001/001066 priority patent/WO2002089550A1/en
Publication of KR20020053692A publication Critical patent/KR20020053692A/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
    • 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
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • 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)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

PURPOSE: An apparatus for absorbing an electromagnetic wave is disclosed to provide a user' convenience by detachably installing at a front plane of a displaying electromagnetic device without having an electromagnetic wave absorbing device. CONSTITUTION: A device for absorbing an electromagnetic wave is adhered to the front plane of a displaying electromagnetic device(10). The first electromagnetic wave offset part(12a) is composed of a Mn-Zn ferrite. The first electromagnetic wave offset part(12a) is adhered to a one side of an image. The image displays a determined information. The second electromagnetic wave offset part(12b) is composed of a Mn-Zn ferrite. The second electromagnetic wave offset part(12b) is adhered to the image corresponding to the first electromagnetic wave offset part(12a). An electric source part supplies a DC power supply to the first electromagnetic wave offset part(12a) and the second electromagnetic wave offset part(12b). The electromagnetic wave, which is emitted from the displaying electromagnetic device(10), is transmitted one of the first electromagnetic wave offset part(12a) and the second electromagnetic wave offset part(12b) supplying a negative voltage.

Description

전자파흡수장치{ELECTROMAGNETIC WAVE ABSORPTION DEVICE}Electromagnetic wave absorption device {ELECTROMAGNETIC WAVE ABSORPTION DEVICE}

본 발명은 전자파흡수장치에 관한 것으로서, 특히 디스플레이용 전자기기에서 발생되는 전자파를 상쇄시켜 방지하는 전자파흡수장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic wave absorbing device, and more particularly, to an electromagnetic wave absorbing device that cancels and prevents electromagnetic waves generated from an electronic device for display.

일반적으로, 전자파는 전기 및 전자기기의 동작중에 발생되는 전자기파를 말하는 것으로, 이것은 불임이나 발암의 원인으로 알려지면서 국가차원에서 그 발생량을 측정하여 규제하고 있는 실정이다.In general, electromagnetic waves refer to electromagnetic waves generated during the operation of electricity and electronic devices, which are known as causes of infertility or carcinogenesis, and are regulated by measuring their amount at national level.

이러한 전자파발생기준에는 다른 장치에 전자파를 발생시키는 기준인 EMC 및 EMI와, 다른 장치에서 유입되는 전자파로 인한 영향을 나타내는 EMS가 있고, 최근 전자파발생기준으로는 가장 엄격하다고 알려진 스웨덴의 TCO 등이 있다.These electromagnetic wave generation standards include EMC and EMI, which are standards for generating electromagnetic waves in other devices, and EMS, which represent the effects of electromagnetic waves flowing from other devices, and Sweden's TCO, which is known as the most stringent electromagnetic wave generation standard, in recent years. .

이와같이 인간생활에 악영향을 끼치는 전자파를 방지하는 종래의 장치의 일례를 들면 다음과 같다.An example of a conventional apparatus for preventing electromagnetic waves adversely affecting human life is as follows.

대한민국 출원번호 96-13510에 개시된 바와 같이, 모니터의 전자파 감지 및 방지회로는 수상관의 애노드와 그리드에 고전압을 인가시키기 위한 수평구동회로 및 고압발생부(30)가 구비된 모니터에 설치된다.As disclosed in Korean Patent Application No. 96-13510, the electromagnetic wave detection and prevention circuit of the monitor is installed in a monitor provided with a horizontal drive circuit and a high-pressure generator 30 for applying a high voltage to the anode and grid of the water pipe.

즉, 모니터에서 발생되는 유해전자파의 전계강도를 감지하는 감지수단(10)과; 상기 감지수단(10)에서 감지된 전계강도가 설정치 이상으로 나타날 때 구동되는 전자파 누출방지회로(20)로 구성된 것을 특징으로 한다.That is, the detection means 10 for detecting the electric field strength of harmful electromagnetic waves generated from the monitor; Characterized in that the electromagnetic wave leakage prevention circuit 20 is driven when the electric field strength detected by the sensing means 10 appears above the set value.

여기서, 상기 전자파 누출방지회로는 기설정된 전압이 기준 이상이면 온이 되는 제너다이오드(ZV1) 및 트랜지스터(Q1)를 포함하여 구성된다.Here, the electromagnetic leakage preventing circuit includes a zener diode (Z V1 ) and a transistor (Q1) that is turned on when the predetermined voltage is higher than the reference.

상술한 종래의 전자파방지장치는 상기 감지수단에서 감지된 전계강도 이하에서 발생되는 전자파를 방지하기는 곤란할 뿐만 아니라, 상술한 전자파방지장치가 내부에 설치되지 않은 전자기기의 전자파 발생을 상쇄하기가 어려운 문제점이 있다.The above-mentioned conventional electromagnetic wave shielding device is not only difficult to prevent the electromagnetic wave generated below the electric field strength detected by the sensing means, and it is difficult to cancel the electromagnetic wave generation of the electronic device in which the electromagnetic wave shielding device is not installed therein. There is a problem.

본 발명은 상술한 문제점을 해소하기 위한 것으로서, 디스플레이용 전자기기의 전자파발생을 상쇄하도록 한 전자파흡수장치를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object thereof is to provide an electromagnetic wave absorbing device which cancels the electromagnetic wave generation of a display electronic device.

본 발명의 다른 목적은 착탈 가능하고, 내부 및 외부에 전자파방지장치가 없는 전자기기의 전자파발생을 흡수하도록 한 전자파흡수장치를 제공하는 것이다.Another object of the present invention is to provide an electromagnetic wave absorbing device which is detachable and absorbs electromagnetic wave generation of an electronic device having no electromagnetic wave preventing device inside and outside.

도 1은 종래의 전자파 방지장치의 회로구성을 나타낸 회로도.1 is a circuit diagram showing a circuit configuration of a conventional electromagnetic wave shielding device.

도 2는 본 발명에 따른 전자파흡수장치를 개념적으로 설명하기 위한 블록도.Figure 2 is a block diagram for conceptually explaining the electromagnetic wave absorption device according to the present invention.

도 3은 본 발명에 따른 전자파흡수장치의 구성을 나타낸 블록도.Figure 3 is a block diagram showing the configuration of the electromagnetic wave absorption device according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 디스플레이용 전자기기12a : 제 1 전자파상쇄부DESCRIPTION OF SYMBOLS 10 Display electronic device 12a First electromagnetic wave canceling part

12b : 제 2 전자파상쇄부14 : 전원부12b: second electromagnetic wave canceling unit 14: power supply unit

상술한 목적을 달성하기 위한 본 발명의 특징은 디스플레이용 전자기기의 전면부에 부착된 전자파흡수장치에 있어서, 소정의 정보가 표시되는 화면 일측에 부착된 제 1 전자파상쇄부와; 상기 제 1 전자파상쇄부와 대응된 위치에 부착된 제 2 전자파상쇄부와; 상기 전자파상쇄부 및 제 2 전자파상쇄부로 직류전원을 공급하는 전원부를 포함하여, 상기 전자기기로부터 방출된 전자파를 상기 제 1 전자파상쇄부 및 제 2 전자파상쇄부 중 음의 전압이 공급된 전자파상쇄부로 흡수하도록 한 전자파흡수장치를 제공하는 것이다.A feature of the present invention for achieving the above object is an electromagnetic wave absorption device attached to the front portion of the display electronic device, comprising: a first electromagnetic wave canceling unit attached to one side of the screen on which predetermined information is displayed; A second electromagnetic wave canceling unit attached to a position corresponding to the first electromagnetic wave canceling unit; And a power supply unit for supplying DC power to the electromagnetic wave canceling unit and the second electromagnetic wave canceling unit, wherein the electromagnetic waves emitted from the electronic device are supplied to the electromagnetic wave canceling unit to which a negative voltage is supplied among the first electromagnetic wave canceling unit and the second electromagnetic wave canceling unit. It is to provide an electromagnetic wave absorbing device to be absorbed.

이하, 첨부된 도면을 참조하여 본 발명을 상세히 설명하도록 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 전자파흡수장치를 개념적으로 나타낸 블록도로서, 소정의 정보를 화면상에 표시하기 위한 디스플레이용 전자기기(10)와, 이 디스플레이용 전자기기(10)에 부착되어 발생된 전자파를 상쇄시키기 위한 제 1 전자파상쇄부(12a) 및 제 2 전자파상쇄부(12b)로 이루어진 전자파흡수장치(12)가 도시되어 있다.2 is a block diagram conceptually illustrating an electromagnetic wave absorbing device according to the present invention, which is attached to the display electronic device 10 and the display electronic device 10 for displaying predetermined information on a screen. An electromagnetic wave absorbing device 12 composed of a first electromagnetic wave canceling portion 12a and a second electromagnetic wave canceling portion 12b for canceling electromagnetic waves is shown.

이러한 전자파흡수장치의 동작흐름을 개념적으로 설명하면 다음과 같다.The operational flow of the electromagnetic wave absorber is conceptually described as follows.

도시된 바와 같이, 상기 제 1 전자파상쇄부(12a)에는 양의 전압이 인가되고, 제 2 전자파상쇄부(12b)에는 음의 전압이 인가되어, 그 사이로 소정량의 전류흐름이 형성된다.As shown, a positive voltage is applied to the first electromagnetic wave canceller 12a and a negative voltage is applied to the second electromagnetic wave canceller 12b to form a predetermined amount of current flow therebetween.

따라서, 상기 디스플레이용 전자기기의 전면부로부터 방출되는 전자파는 상기 전자파흡수장치에서 형성된 전류흐름에 합쳐지게 되어 상기 제 2 전자파상쇄부(12b)로 모이게 되고, 상기 디스플레이용 전자기기의 전자파는 곡선형으로 휘어어지는 형상을 가지게 된다.Therefore, the electromagnetic waves emitted from the front portion of the display electronic device are combined with the current flow formed in the electromagnetic wave absorbing device to be collected in the second electromagnetic wave canceling unit 12b, and the electromagnetic wave of the display electronic device is curved. It will have a shape to bend.

왜냐하면, 대부분의 전자파는 그 전계가 강하지는 못하기 때문에 상기 제 1 및 제 2 전자파상쇄부에 인가된 전압으로 인한 전류흐름에도 쉽게 흡수된다.Because most electromagnetic waves are not strong in the electric field, they are easily absorbed by current flow due to the voltage applied to the first and second electromagnetic wave canceling units.

한편, 상기 제 1 및 제 2 전자파상쇄부는 전자파를 충분히 흡수할 수 있도록 망간과 아연이 함유된 페라이트로 제조한다.Meanwhile, the first and second electromagnetic wave canceling units are made of ferrite containing manganese and zinc to sufficiently absorb electromagnetic waves.

이 성분을 좀더 상세히 설명하면, 산화이트륨(Y2O3) 1.8 ∼ 2.0 중량 %, 산화갈륨(K2O) 0.04 ∼ 0.09 중량 %, 산화티탄(TiO2) 0.02 ∼ 0.09 중량 %, 산화나트륨(NaO2) 0.29 ∼ 0.38 중량 %, 이산화망간(MnO2) 14.0 ∼ 15.0 중량 %, 산화아연(ZnO) 15.0 ∼ 16.5 중량 %, 산화철(Fe2O3) 65.0 ∼ 75.0 중량 %, 산화칼슘(CaO) 0.05 ∼ 0.09 중량 %, 산화규소(SiO2) 0.60 ∼ 0.85 중량 %, 산화니켈(NiO) 0.01 ∼ 0.03 중량 % 및 산화크롬(CrO3) 0.01 ∼ 0.05 중량 %를 포함하는 망간아연계 페라이트이다.In more detail, the component is yttrium oxide (Y 2 O 3) 1.8 to 2.0 weight%, gallium oxide (K 2 O) 0.04 to 0.09 weight%, titanium oxide (TiO 2) 0.02 to 0.09 weight%, sodium oxide (NaO 2) 0.29 to 0.38 weight %, Manganese dioxide (MnO2) 14.0 to 15.0 wt%, zinc oxide (ZnO) 15.0 to 16.5 wt%, iron oxide (Fe2O3) 65.0 to 75.0 wt%, calcium oxide (CaO) 0.05 to 0.09 wt%, silicon oxide (SiO 2 ) It is a manganese zinc ferrite containing 0.60 to 0.85 weight%, nickel oxide (NiO) 0.01 to 0.03 weight%, and chromium oxide (CrO 3 ) 0.01 to 0.05 weight%.

전술한 내용을 토대로 실제적인 디스플레이용 전자장치에 본 발명의 전자파흡수장치를 적용한 실시예를 개시하면 다음과 같다.An embodiment in which the electromagnetic wave absorbing device of the present invention is applied to an actual display electronic device is described below.

도 3은 본 발명의 전자파흡수장치의 구체적인 설치형태를 나타낸 사시도로서, 소정의 정보를 디스플레이하는 디스플레이용 전자장치(10)의 전면은 실제로 정보가 디스플레이되는 표시부분(A)이 있고, 어떠한 정보도 디스플레이되지 않는 비표시부분(B)이 있는데, 본 발명의 전자파흡수장치는 비표시부분(B)에 부착된다.3 is a perspective view showing a specific installation form of the electromagnetic wave absorbing device of the present invention. The front surface of the display electronic device 10 displaying predetermined information has a display portion A on which information is actually displayed, and no information is provided. There is a non-display portion B which is not displayed, and the electromagnetic wave absorbing device of the present invention is attached to the non-display portion B.

부착방식은 통상적인 방법 예컨대, 양면테이프와 같은 접착성물질을 이용해서 붙이도록 한다.Attachment is a conventional method, for example, by using an adhesive material such as double-sided tape.

상기 비표시부분(B)의 모서리에 부착하고자 한다면, 기역자 형상의 제 1 전자파상쇄부(12a)를 기역자 형상의 제 2 전자파상쇄부(12b)가 서로 대응되는 위치에 있도록 부착하여 전자파 상쇄효과를 극대화시키도록 한다.If you want to attach to the corner of the non-display portion (B), attach the first electromagnetic wave canceller portion 12a of the tracer shape so that the second electromagnetic wave canceller portion 12b of the tracer shape to correspond to each other to effect the electromagnetic wave canceling effect Maximize it.

상기 제 1 전자파상쇄부(12a)로는 양의 전압을 인가하고, 상기 제 2 전자파상쇄부(12b)로는 음의 전압을 인가하도록 하며, 인가되는 전압의 범위는 9V ∼ 12V의 직류전압이 바람직하다.A positive voltage is applied to the first electromagnetic wave canceller 12a, a negative voltage is applied to the second electromagnetic wave canceller 12b, and a DC voltage of 9 V to 12 V is preferably applied. .

전술한 실시예는 착탈가능한 전자파흡수장치에 관한 것이지만, 본 발명은 소정의 디스플레이용 전자기기에 제조단계에서 장착되도록 일체형으로 구현하여도 되는데, 이럴 경우에는 일체화된 전자기기의 전원을 이용하는 것이 바람직하다.Although the above-described embodiment relates to a detachable electromagnetic wave absorbing device, the present invention may be integrally implemented to be mounted on a predetermined display electronic device in a manufacturing step, in which case it is preferable to use a power source of the integrated electronic device. .

이러한 본 발명은 텔레비전, 모니터 등 브라운관을 사용하는 모든 디스플레이용 전자기기에 적용하여 될 수 있다.The present invention can be applied to all display electronic devices using a CRT, such as a television, a monitor.

한편, 상기 제 1 및 제 2 전자파상쇄부의 설치위치는 대각선 방향으로 부착되었으나, 이로부터 다양하게 변형실시가 가능하다.On the other hand, the installation position of the first and second electromagnetic wave canceling unit is attached in a diagonal direction, it is possible to vary in this way.

예컨대, 상기 제 1 및 제 2 전자파상쇄부를, 디스플레이용 전자기기의 전면부 상단 및 하단에 대응되도록 설치할 수도 있고, 좌측과 우측에 대응되도록 설치할 수도 있으며, 화면 즉, 브라운관을 둘러싸되, 서로 격리된 두 개의 반원형태로도 설치할 수가 있다.For example, the first and second electromagnetic wave cancellers may be installed to correspond to the top and bottom of the front part of the display electronic device, or may be installed to correspond to the left and right sides, and surround the screen, that is, the CRT, and are separated from each other. It can also be installed in two semicircles.

상술한 바와 같은 실시예의 바람직한 양태에 따르면 다음과 같은 장점이 있다.According to a preferred embodiment of the embodiment as described above has the following advantages.

첫째, 전자파흡수장치가 구비되지 않은 디스플레이용 전자기기의 전면에 착탈 가능하도록 설치함으로써 사용자편의성을 도모하는 장점이 있다.First, there is an advantage to facilitate the user by installing a detachable on the front of the display for electronic devices that are not provided with an electromagnetic wave absorbing device.

둘째, 전자파흡수 특성을 가진 물질을 채택하고, 소정의 전류발생을 통해서 전자파를 흡수하도록 함으로써 전자파방지 성능을 더욱더 향상시킨 장점이 있다.Second, by adopting a material having the electromagnetic wave absorption characteristics, by absorbing the electromagnetic wave through the generation of a predetermined current has the advantage of further improving the electromagnetic wave prevention performance.

셋째, 본 발명의 전자파흡수장치를 적용할 경우에는 별도의 전자파방지회로가 없어도 되기 때문에 제조비용을 절감할 수 있는 장점이 있다.Third, when applying the electromagnetic wave absorbing device of the present invention there is an advantage that can reduce the manufacturing cost because there is no need for a separate electromagnetic wave protection circuit.

Claims (2)

디스플레이용 전자기기의 전면부에 부착된 전자파흡수장치에 있어서,In the electromagnetic wave absorbing device attached to the front of the display electronic device, 망간-아연계 페라이트로 이루어져, 소정의 정보가 표시되는 화면 일측에 부착된 제 1 전자파상쇄부와,A first electromagnetic wave canceling unit made of manganese-zinc ferrite and attached to one side of a screen on which predetermined information is displayed; 망간-아연계 페라이트로 이루어져, 상기 제 1 전자파상쇄부와 대응된 위치에 부착된 제 2 전자파상쇄부와,A second electromagnetic wave canceling portion made of manganese-zinc ferrite and attached to a position corresponding to the first electromagnetic wave canceling portion; 상기 전자파상쇄부 및 제 2 전자파상쇄부로 직류전원을 공급하는 전원부를 포함하여,Including a power supply for supplying a direct current power to the electromagnetic wave canceller and the second electromagnetic wave canceller, 상기 전자기기로부터 방출된 전자파를 상기 제 1 전자파상쇄부 및 제 2 전자파상쇄부 중 음의 전압이 공급된 전자파상쇄부로 흡수하도록 하는 것을 특징으로 하는 전자파흡수장치.And absorbing the electromagnetic waves emitted from the electronic device into the electromagnetic wave canceling unit supplied with a negative voltage among the first electromagnetic wave canceling unit and the second electromagnetic wave canceling unit. 제 1 항에 있어서,The method of claim 1, 상기 제 1 및 제 2 전자파상쇄부는 산화이트륨(Y2O3) 1.8 ∼ 2.0 중량 %, 산화갈륨(K2O) 0.04 ∼ 0.09 중량 %, 산화티탄(TiO2) 0.02 ∼ 0.09 중량 %, 산화나트륨(NaO2) 0.29 ∼ 0.38 중량 %, 이산화망간(MnO2) 14.0 ∼ 15.0 중량 %, 산화아연(ZnO) 15.0 ∼ 16.5 중량 %, 산화철(Fe2O3) 65.0 ∼ 75.0 중량 %, 산화칼슘(CaO) 0.05 ∼ 0.09 중량 %, 산화규소(SiO2) 0.60 ∼ 0.85 중량 %, 산화니켈(NiO) 0.01 ∼ 0.03 중량 % 및 산화크롬(CrO3) 0.01 ∼ 0.05 중량 %를 포함하는 망간아연계 페라이트인 것을 특징으로 하는 전자파흡수장치.The first and second electromagnetic wave canceling units are 1.8 to 2.0 wt% of yttrium oxide (Y 2 O 3), 0.04 to 0.09 wt% of gallium oxide (K 2 O), 0.02 to 0.09 wt% of titanium oxide (TiO 2), and 0.29 to 0.38 of sodium oxide (NaO 2). Weight%, manganese dioxide (MnO 2) 14.0 to 15.0 weight%, zinc oxide (ZnO) 15.0 to 16.5 weight%, iron oxide (Fe 2 O 3) 65.0 to 75.0 weight%, calcium oxide (CaO) 0.05 to 0.09 weight%, silicon oxide (SiO 2) A manganese zinc-based ferrite comprising 0.60 to 0.85 weight%, nickel oxide (NiO) 0.01 to 0.03 weight% and chromium oxide (CrO 3 ) 0.01 to 0.05 weight%.
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